Door locking handle assembly with built-in combination lock

Abstract
In the handle assembly, a combination lock (6) is opened by turning each dial discs (4) a given number of times to establish a combination of marks on the discs, and is incorporated in a handle (2) and disposed adjacent to a cylinder lock (13) in the handle. A receiver lever (16) pivoted on a base body (1), is controlled by a lock plate (5). A stopping plate (11), interlocked with a rotor (8) of the cylinder lock (13), engages receiver lever (16) pivoted to the base body (1), so that the handle (2) is held in its folded position. When the combination lock (6) is in its unlocked condition and the handle (2) is pulled, the receiver lever (16) is swung upward by the stopping plate (11) to release handle (2) from the base body (1). A plurality of slots (68) are formed on a bottom surface of a dent portion (100) of the handle (2). An outer peripheral portion of each of the dial discs (4) projects into the dent portion (100) through the slot (68) so that an outer peripheral surface of the dial disc (4) is set back from a virtual extension plate of the front surface (2a) of the handle (2). The handle assembly is attached to a door (30) front side having an opening (32) into which the base body (1) is fitted and retained by a pivoted fastening stopper (80) actuated by set screw (82) fixing arrangement.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a door-locking handle assembly with a built-in combination lock of a pull-out and side-swinging lever-action type, in which a door handle is pivoted to a base body of the assembly so as to be pulled out forward and pushed back rearward relative to the base body and turned on its pivoted end.




2. Description of the Related Art




As is well known in the art, a door locking handle assembly of a conventional type has a construction in which: a base body of the, assembly is fixedly mounted on a door of a box or container, a door handle is pivoted to the base body so as to be pulled out forward and pushed back rearward relative to the base body and further turned sideward on its pivoted end after completion of its pulling-out operation; when the door handle is pulled out of the base body to assume its pulled-up or raised inclination position relative to the base body and turned sideward after completion of its pulling-out operation, a catch plate (i.e., locking member) which serves as a door bolt directly or indirectly connected with the door handle is released from a receiving portion of a stationary frame element (i.e., door frame) of the box or container. In this type of conventional door locking handle assembly, a cylinder lock is incorporated in either the door handle or the base body on the other hand, the door handle is pushed back rearward relative to the base body and held in its folded position or locked position in the base body.




In the conventional door locking handle assembly having the above construction, an available space for mounting the assembly is extremely limited in each of opposite sides of the door to which the assembly is fixedly mounted because the interior space of the box or container for housing various instruments therein is relatively limited due to the presence of the instruments housed in the box or container. Due to this, it is necessary to considerably limit in size the projections of the assembly in opposite directions perpendicular to the plane of the door's surface.




In order to fulfill the above need, it is necessary to reduce in thickness the assembly as a whole by reducing in thickness the door handle and in depth the base body. However, this forces the cylinder lock of the assembly to be considerably reduced in thickness.




On the other hand, in such a thin-type cylinder lock, since the number of sets of disc tumblers and/or pin tumblers incorporated in the cylinder lock as essential components of its internal lock mechanism is small, the number of available keys of such a thin-type cylinder lock is naturally limited. Due to this, in the case where there are a large number of eligible users or persons using the instruments contained in the box which is provided with the door locking handle assembly employing the cylinder lock in a condition in which these users or persons are controlled by a control operator through a computerized personal management system, it is difficult to use the conventional door locking handle assembly which employs the thin-type cylinder lock.




Also, in the conventional door locking handle assembly, the base body if fixed to the door by fitting screws into threaded holes formed on the door by way of through holes, which is formed on a front plate portion projection from the front end of the base body. Otherwise, the base body is fixed to the door by fitting screws into threaded holes of the base body from the rear side of the door by way of through holes of the door.




However, in such an attaching structure described above, it is necessary to form threaded holes and through holes on the door body adjacent to both longitudinal ends of the base body in addition to the attaching opening for receiving the base body. Therefore, it increases the processing of perforating such holes, and it makes the attaching operation troublesome or complicated because operators or workers have to hold the door handle assembly at a given attaching position form the front side of the door in conducting the screw fixing operation.




In a door handle assembly as shown in the Japanese utility model opening gazette No. Heisei 3-54274, a base body is provided with a cover plate on its front end portion, and a slant surface portion is formed on one of longitudinal ends of the base body, which slant surface portion is inclined relative to said cover plate. In attaching operation of the door handle assembly, a door is inserted between the cover plate and the slant surface portion, and then the door handle assembly is embedded into an attaching opening of the door so that the door is put between an engagement block and a slant surface portion, which is formed on the other of longitudinal ends of the base body. Also, in this attaching structure, the operation efficiency of attaching is not good because operators or workers have to hold the door handle assembly at a given attaching position from the front side of the door in conducting the screw fixing operation.




SUMMARY OF THE INVENTION




Under such circumstances, the present invention was made. Consequently, it is an object of the present invention to provide a door locking handle assembly with a built-in combination lock, which assembly is thin in thickness as a whole and capable of providing a very large number of available keys for the combination lock, wherein a large number of eligible persons or users of various instruments contained in a box or container provided with the door locking handle assembly are precisely controlled by a control operator through a computerized personal management system.




It is another object of the present invention to provide the door locking handle assembly, wherein it is not necessary to perforate threaded holes and through holes for attaching screws in the door, and the operation efficiency of attaching is more improved because operators or workers do not need to hold the door handle assembly at a given attaching position from the front side of the door in the screw fixing operation.




It is a further object of the present invention to provide the door locking handle assembly, which is adapted to various doors that are different from each other in thickness.




In accordance with a first aspect of the present invention, the above object of the present invention is accomplished by providing:




a base body fixedly mounted on a door


30


of a box, wherein a handle


2


is pivoted to the base body


1


so as to be capable of being pulled out forward and pushed back rearward relative to the base body


1


, wherein a locking member


3


serving as a door bolt for locking the door


30


to a main body of the box is directly or indirectly connected with the handle


2


so as to be engaged with and disengaged from a receiving portion of a stationary frame element such as the main body of the box when the handle


2


is pulled out forward and then turned sideward on the locking shaft


29


after completion of the pulling-out operation of the door handle


2


, the improvement wherein:




the combination lock


6


, which is provided with a plurality of marked dial discs


4


, is incorporated in the handle


2


and opened by turning each of the marked dial discs


4


a given number of times to establish a predetermined combination of marks for unlocking, which is provided in outer peripheral surfaces of the dial discs


4


;




the combination lock


6


is held in its locked condition when the predetermined combination of marks for unlocking is not established;




a plurality of slots


68


are formed on a bottom surface of a dent portion


100


, which is formed on a front surface of said handle


2


;




an outer peripheral portion of each of said dial discs


4


projects into said dent portion


100


through said slot


68


in such a manner that an outer peripheral surface of said dial disc


4


is set back from a virtual extension plane of the front surface


2




a


of said handle


2


;




a cylinder lock


13


is incorporated in the handle


2


and disposed adjacent to the combination lock


6


in a longitudinal direction of the handle


2


, wherein the cylinder lock


13


is provided with a rotor


8


;




when an eligible key


7


is inserted into a keyhole


9


of the rotor


8


of the cylinder lock


13


, the cylinder lock


13


has its internal lock mechanism


10


unlocked to permit the rotor


8


to be turned by the key


7


thus inserted into the keyhole


9


of the rotor


8


;




when the rotor


8


is turned, a stopper plate


11


which is slidably received in a side through-hole


12


of the handle


2


is driven in a manner such that the stopping plate


11


is projected outward from the side through-hole


12


and retracted from the outside of the handle


2


.




And, the stopping plate


11


has its upper end portion


14


abut against a shoulder portion


15


of a lower surface of a proximal end portion of a receiver lever


16


;




the receiver lever


16


has its proximal end portion pivoted to an inner wall portion of the base body


1


through a first pivot


17


;




the shoulder portion


15


of the receiver lever


16


is provided with a cam slope


18


through which the receiver lever


16


is pushed upward by the upper end portion of the stopper plate


11


;




the receiver lever


16


is rotatably urged toward the stopping plate


11


by means of a first spring member


19


;




a slider


21


is disposed in parallel with a center pin


20


of the combination lock


6


, and urged toward the cylinder lock


13


by means of a second spring member


22


in a manner such that a lower end portion


23


of the slider


21


abuts against an upper surface of the receiver lever


16


, so that the slider


21


has its restriction portion


26


engaged with and disengaged from a locking end portion


25


of a lock plate


5


when the lock plate


5


is held in its locked position and its unlocked position, respectively.




And, when the lock plate


5


is held in its unlocked position, the handle


2


is capable of being pulled forward out of the base body


1


;




when the handle


2


is thus pulled out forward, the stopping plate


11


pushes the cam slope


18


of the receiver lever


16


swingably upward so that the receiver lever


16


is moved to its unlocked positon; and




when the lock plate


5


is held in its locked position, the lock plate


5


has its locking end portion


25


engaged with the restriction portion


26


of the slider


21


to prevent the receiver lever


16


from turning on the first pivot


17


.




In accordance of the second aspect of the present invention, the above object of the present invention is accomplished by providing:




In the door locking handle assembly of the invention described above has further the following structure, wherein;




said base body


1


is fitted into an attaching opening


32


of a door


30


from the front side of the door


30


, and a front flange


93


is formed on outer surface of the base body


1


, which the front flange abuts on a front surface


30




a


of the door


30


;




a rear projection


90


, which is formed on one of longitudinal ends of the base body


1


, passes through the attaching opening


32


to the rear side of the door


30


;




a rear edge portion


32




a


of one of longitudinal ends of the attaching opening


32


engages with a locating groove


92


, which is formed between said rear projection


90


and one of longitudinal ends


93




a


of said front flange


93


;




a hollow portion


94


, which is formed in the other of longitudinal ends of said base body


1


disposed on the rear side of the door


30


, is opened toward the other end


93




b


of longitudinal ends of said front flange


93






a fastening stopper


80


is housed in said hollow portion


94


, and pivoted to said base body


1


by a pivot


81


which is parallel to the font surface


30




a


of said door


30


;




a set screw


82


is fitted through a threaded hole


89


, which is formed in a rear wall portion the base body


1


, and a leading end of the set screw


82


projects into the hollow portion


94


; and




a front side edge surface


80




a


of said fastening stopper


80


is brought info engagement with both a rear surface


93




c


of said end portion


93




b


of the front flange


93


and a rear side edge portion


32




b


of the other of longitudinal ends of said attaching opening


32


with pressing the fastening stopper


80


by said set screw


82


.




In accordance of the third aspect of the present invention, the above object of the present invention is accomplished by providing:




In the door locking handle assembly of the invention described above has further the following structure, wherein;




when the base body


1


is inserted into the attaching opening


32


of the door


30


, a first cam surface portion


83


, which is formed on the outer edge of said fastening stopper


80


, slidably contacts with the front side edge portion


32




c


of the other of longitudinal ends of the attaching opening


32


so that the fastening stopper


80


is retreated into said hollow portion


94


;




when the set screw


82


is fitted through the threaded hole


89


, a second cam surface portion


84


, which is formed on the inner edge of the fastening stopper


80


, slidably contacts with a leading end of said set screw


82


so that the fastening stopper


80


is pushed out ward from the hollow portion


94


.




In accordance of the fourth aspect of the present invention, the above object of the present invention is accomplished by providing:




In the door locking handle assembly of the invention described above has further the following structure, wherein;




a spring member


85


, which is disposed between the fastening stopper


80


and the base body


1


, urges the fastening stopper


80


so as to project outside of the rear edge portion


32




b


of the attaching opening


32


.




In accordance of the fifth aspect of the present invention, the above object of the present invention is accomplished by providing:




In the door locking handle assembly of the invention described above has further the following structure, wherein;




said front side edge surface


80




a


of said fastening stopper


80


, which is formed as a curved shape, engages with both the rear surface


93




c


of said end portion


93




b


of the front flange


93


and the rear side edge portion


32




b


of the other of longitudinal ends of said attaching opening


32


.




In accordance of the sixth aspect of the present invention, the above object of the present invention is accomplished by providing:




in the door locking handle assembly of the invention described above has further the following structure, wherein;




a threaded hole


98


is formed on said rear projection


90


of the base body


1


upright to the door


30


, and a leading end of a pushing screw


97


, which is fitted into said threaded hole


98


, abuts onto a rear surface


30




b


of the door


30


.











BRIEF DESCRIPTION OF THE DRAWINGS




The above and other objects, advantages and features of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings in which:





FIG. 1

is a front view of an embodiment of the door locking handle assembly of the present invention;





FIG. 2

is a right side view of the door locking handle assembly shown in

FIG. 1

;





FIG. 3

is a rear view of the door locking handle assembly shown in

FIG. 1

;





FIG. 4

is a schematic longitudinal sectional view of the door locking handle assembly shown in

FIG. 1

, illustrating a predetermined unique combination of the marks of the dial discs of the combination lock;





FIG. 5

is a plan view of the door locking handle assembly shown in

FIG. 1

;





FIG. 6

is a bottom view of the door locking handle assembly shown in

FIG. 1

;





FIG. 7

is a front view of the built-in combination lock of the door locking handle assembly shown in

FIG. 1

, illustrating the dial discs the marks of which are not shown together with the positioning grooves of these marks;





FIG. 8

is a cross-sectional view of combination lock, taken along the line A—A of

FIG. 7

;





FIG. 9

is a cross-sectional view of combination lock, taken along the line B—B of

FIG. 7

;





FIG. 10

is a cross-sectional view of combination lock, taken along the line C—C of

FIG. 7

;





FIG. 11

is a cross-sectional view of combination lock, taken along the line D—D of

FIG. 7

;





FIG. 12

is a plan view of the dial disc employed in the combination lock shown in FIG.


7


.





FIG. 13

is a longitudinal sectional view of the dial disc, taken along the line E—E of

FIG. 12

;





FIG. 14

is a bottom view of the cam disc employed in the combination lock shown in

FIG. 7

;





FIG. 15

is a rear view of the cam disc shown in

FIG. 14

;





FIG. 16

is a longitudinal sectional view of the cam disc, taken along the line F—F





FIG. 17

is a longitudinal section view of the combination lock, taken along the line G—G of

FIG. 8

;





FIG. 18

is a longitudinal sectional view of the combination lock, taken along the line H—H of FIG.


7


.





FIG. 19

a right side view of a fastening stopper employed in the combination lock shown in FIG.


1


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




The best modes for carrying out the present invention will be described in detail using embodiments of the present invention with reference to the accompanying drawings.




As shown in the drawings, a based body


1


fixedly mounted on a door


30


of a box, wherein a handle


2


is pivoted to the base body


1


so as to be capable of being pulled out forward and pushed back rearward relative to the base body


1


.




A locking member


3


serving as a door bolt for locking the door


30


to a main body of the box is directly or indirectly connected with the handle


2


so as to be engaged with and disengaged from a receiving portion of a stationary frame element such as the main body of the box when the handle


2


is pulled out forward and then turned sideward on the locking shaft


29


after completion of the pulling-out operation of the door handle


2


.




The combination lock


6


, which is provided with a plurality of marked dial discs


4


, is incorporated in the handle


2


and opened by turning each of the marked dial discs


4


a given number of times to establish a predetermined combination of marks for unlocking, which is provided in outer peripheral surfaces of the dial discs


4


.




The combination lock


6


is held in its locked condition when the predetermined combination of marks for unlocking is not established. A plurality of slots


68


are formed on a bottom surface of a dent portion


100


, which is formed on a front surface of said handle


2


. An outer peripheral portion of each of said dial discs


4


projects into said dent portion


100


through said slot


68


in such a manner that an outer peripheral surface of said dial disc


4


is set back from a virtual extension plane of the front surface


2




a


of said handle


2


.




A cylinder lock


13


is incorporated in the handle


2


and disposed adjacent to the combination lock


6


in a longitudinal direction of the handle


2


, wherein the cylinder lock


13


is provided with a rotor


8


. When an eligible key


7


is inserted into a keyhole


9


of the rotor


8


of the cylinder lock


13


, the cylinder lock


13


has its internal lock mechanism


10


unlocked to permit the rotor


8


to be turned by the key


7


thus inserted into the keyhole


9


of the rotor


8


. When the rotor


8


is turned, a stopper plate


11


which is slidably received in a side through-hole


12


of the handle


2


is driven in a manner such that the stopping plate


11


is projected outward from the side through-hole


12


and retracted from the outside of the handle


2


.




And, the stopping plate


11


has its upper end portion


14


abut against a shoulder portion


15


of a lower surface of a proximal end portion of a receiver lever


16


. The receiver lever


16


has its proximal end portion pivoted to an inner wall portion of the base body


1


through a first pivot


17


The shoulder portion


15


of the receiver lever


16


is provided with a cam slope


18


through which the receiver lever


16


is pushed upward by the upper end portion of the stopper plate


11


. The receiver lever


16


is rotatably urged toward the stopping plate


11


by means of a first spring member


19


.




A slider


21


is disposed in parallel with a center pin


20


of the combination lock


6


, and urged toward the cylinder lock


13


by means of a second spring member


22


in a manner such that a lower end portion


23


of the slider


21


abuts against an upper surface of the receiver lever


16


, so that the slider


21


has its restriction portion


26


engaged with and disengaged from a locking end portion


25


of the lock plate


5


when the lock plate


5


is held in its locked position and its unlocked position, respectively.




And, when the lock plate


5


is held in its unlocked position, the handle


2


is capable of being pulled forward out of the base body


1


. When the handle


2


is thus pulled out forward, the stopping plate


11


pushes the cam slope


18


of the receiver lever


16


swingably upward so that the receiver lever


16


is moved to its unlocked position. When the lock plate


5


is held in its locked position, the lock plate


5


has its locking end portion


25


engaged with the restriction portion


26


of the slider


21


to prevent the receiver lever


16


from turning on the first pivot


17


.




In the door locking handle assembly described above, in the attaching operation of the locking handle assembly to the door


30


, the base body


1


is fitted into an attaching opening


32


of a door


30


, at first from one of longitudinal ends, from the front side of the door


30


so that the rear edge portion


32




a


of one of longitudinal ends of the attaching opening


32


is engaged with a locating groove


92


between said rear projection


90


and one of longitudinal ends


93




a


of said front flange


93


.




By rotating the base body


1


about the engagement point above toward the door


30


, the base body


1


is fitted into the attaching opening


32


up to the other of longitudinal ends. Thereby, the front flange


93


abuts on the front surface


30




a


of the door


30


at all of the length thereof.




Thereafter, the set screw


82


is driven by a driver from the rear side of the door


30


so that the leading end of the set screw


82


, which projects in to the hollow portion


94


of the base body


1


, pushes the fastening stopper


80


. By such a pushing operation, the fastening stopper


80


is rotated outward on the center of the pivot


81


, so that the front side edge surface


80




a


of the fastening stopper


80


is brought into engagement with both the rear surface


93




c


of said end portion


93




b


of the front flange


93


and the rear side edge portion


32




b


of the other of longitudinal ends of the attaching opening


32


.




In such a way, the base body


1


is fixedly fastened to the door


30


with having the front flange


93


abutted on the front surface


30




a


thereof.




In the door locking handle assembly of the invention when the base body


1


is inserted into the attaching opening


32


of the door


30


, the fastening stopper


80


is retreated into said hollow portion


94


, because the first cam surface portion


83


of the fastening stopper


80


slides on the front side edge portion


32




c


of the attaching opening


32


.




Also, when the set screw


82


is fitted into the threaded hole


89


, the fastening stopper


80


is pushed out ward from the hollow portion


94


, because the leading end of said set screw


82


slides on the second cam surface portion


84


of the fastening stopper


80


. And thereby, the front side edge surface


80




a


of the fastening stopper


80


is engaged with both the rear surface


93




c


of the end portion


93




b


of the front flange


93


and the rear side edge portion


32




b


of the attaching opening


32


.




In the door locking handle assembly of the invention when the base body


1


is inserted into the attaching opening


32


, the first cam surface portion


83


slides on the front side edge portion


32




c


so that the fastening stopper


80


is retreated into said hollow portion


94


. On the other hand, when the front flange


93


abuts on the front surface


30




a


of the door


30


, the fastening stopper


80


is rotated outward by the spring


85


, and at a last stage of such rotation, the front side edge surface


80




a


of the fastening stopper


80


is engaged with both the rear surface


93




c


of the front flange


93


and the rear side edge portion


32




b


of the attaching opening


32


.




In the door locking handle assembly of the invention the front side edge surface


80




a


of the fastening stopper


80


is engaged with both the rear surface


93




c


of the front flange


93


and the rear side edge portion (


32




b


) of the attaching opening (


32


) at a certain point on the curved profile thereof, which is determined in accordance with thickness of the door


30


.




In the door locking handle assembly of the invention base body


1


is fixed on the door


30


with cooperation of the locating groove


92


and the fastening stopper


80


, and thereafter, the leading end of a pushing screw


97


, which is fitted into said threaded hole


98


, abuts or pushes to the rear surface


30




b


of the door


30


.




In the door locking handle assembly of the present invention, a control operator of the instruments housed in the box is capable of allocating to each of a large number of eligible users or persons such a predetermined unique combination of marks of the marked dial discs


4


of the combination lock


6


for unlocking and locking the combination lock


6


.




Each of the eligible users or persons is capable of unlocking the combination lock


6


of the door locking handle assembly by inserting a finger up into the front dent portion


100


of the handle so as to touch to the outer peripheral surfaces


4




a


of the marked dial discs


4


, and by turning in a normal or a reverse direction each of the marked dial discs


4


a given number of times to establish the unique combination of the marks, which combination has been allocated to each of the eligible users or persons, wherein the marks are provided in an outer peripheral surface of each of the dial discs


4


.




Once such a predetermined unique combination of the marks is established, as shown in

FIG. 4

, the combination lock


6


is unlocked and therefore capable of moving to its unlocking position. In such an unlocked condition of the combination lock


6


, as shown in

FIGS. 8 and 9

, the locking end portion


25


of the lock plate


5


is in a predetermined advanced position in which: the locking end portion


25


of the lock plate


5


is released from the restriction portion


26


of the slider


21


: and, the slider


21


is capable of moving upward as viewed in FIG.


4


. At this time, the cylinder lock


13


is in its locked condition, so that the upper end portion


14


of the stopping plate


11


is engaged with the shoulder portion


15


of the receiver lever


16


under the influence of a resilient force exerted by the first spring member


19


. As a result, the handle


2


is held in its folded position inside a front concave portion


27


of the base body


1


.




Under such circumstances, when the door handle


2


is forcibly pulled forward out of the base body


1


, the door handle


2


is turned on a second pivot


28


. As a result, the upper end portion


14


of the stopping plate


11


pushes swingably up the cam slope


18


of the shoulder portion


15


of the receiver lever


16


. Due to such pushing operation of the stopping plate


11


, the receiver lever


16


is turned on the first pivot


17


to unlock the door handle


2


. At the same time, the receiver lever


16


pushes up a lower end portion


23


of the slider


21


so that the slider


21


is retracted upward from its lower extended position.




At a stage in which the door handle


2


is swingably pulled out of the base body


1


to reach a predetermined angular position thereof, the receiver lever


16


is released from a pushing force exerted by the upper end portion


14


of the stopping plate


11


. Due to this, the receiver lever


16


swingably returns to its initial rest position under the influence of a resilient force exerted by the first spring member


19


. At this time, the slider


21


also returns downward to its initial lower position under the influence of a resilient force exerted by the second spring member


22


.




When the door handle


2


, which is in its raised position, is turned sideward on the locking shaft


29


, the locking member


3


which is directly or indirectly connected with the door handle


2


is released from the receiving portion (not shown) of the stationary frame element or main body of the box. This permits the door


30


(shown in

FIG. 4

) to be released from the above-mentioned receiving portion of the main body of the box. Consequently, any eligible person or user is capable of opening the door


30


by simply pulling the door handle


2


forward relative to the base body


1


.




When the predetermined unique combination of the marks of the dial discs


4


is not established by rotating each of the dial discs


4


, the lock plate


5


rotates in the direction of the arrow as shown in

FIG. 8

to lock the combination lock


6


. Due to this, the lock plate


5


has ifs locking end portion


25


abut against the restriction portion of the slider


21


to prevent the receiver lever


16


from turning upward on the first pivot


17


toward its escape position.




In this locked condition of the combination lock


6


, when the door handle


2


is forcibly pulled forward out of the base body


1


, the door handle


2


is very slightly pulled forward relative to the base body


1


to have immediately the upper end portion


14


of the stopping plate


11


abut against the cam slope


18


of the receiving lever


16


, so that such a forcible forward pulling operation of the door handle


2


is inhibited by the stopping plate


11


.




For example, the control operator of the instruments housed in the box, who allocates to each of the users or persons the predetermined unique combination of marks of the dial discs


4


, has a broader control power than does each of the users or persons. Consequently, the control operator is capable of pulling forward and turning sideward the door handle


2


to open the door


30


without using the combination of the marks of the dial discs


4


. Furthermore, the control operator is authorized to have the eligible key


7


of the cylinder lock


13


.




When an illegal person, who is not authorized to use the box closed with the door


30


, illegally operates or turn each of the dial discs


4


of the combination lock


6


to lock the combination lock


6


by accident, it is possible for the control operator to reset the combination lock


6


thus accidentally locked by the illegal person.




In a preliminary stage of the above-mentioned setting operation of the combination lock


6


, the control operator inserts the key


7


into the keyhole


9


of the rotor


8


in the cylinder lock


13


to unlock the internal lock mechanism


10


of the cylinder lock


13


by using a predetermined coded key ridge portion of the key


7


. This makes it possible for the rotor


8


of the cylinder lock


13


to rotate on its longitudinal center axis. When the key


7


thus inserted into the keyhole


9


of the rotor


8


is turned in the unlocking direction of the cylinder lock


13


, the stopping plate


11


having been projected from the side through-hole


12


of the door handle


2


is retracted from the outside of the door handle


2


to be entirely inside the side through-hole


12


, so that the upper end portion


14


of the stopping plate


11


is disengaged from the shoulder portion


15


of the receiver lever


16


.




As described above, in the locking condition of the combination lock


6


, since the locking end portion


25


of the lock plate


5


is in a position in which the locking end portion


25


abuts against the restriction portion


26


of the slider


21


, the slider


21


is prevented from moving upward by means of the lock plate


5


. As a result, the receiver lever


16


is prevented from turning on the first pivot


17


in its unlocking direction.




On the other hand, when the cylinder lock


13


is unlocked using the key


7


, the stopping plate


11


is entirely retracted from the outside of the door handle


2


Therefore, there is no fear that the stopping plate


11


hits the receiver lever


16


. Due to this, it is possible to pull the door handle


2


forward out of the front concave portion


27


of the base body


1


without any interference between the door handle


2


and the receiver lever


16


.




After the door


30


of the box (not shown) is opened, an appropriate reset means such as a reset lever


63


is operated from behind the thus opened door


30


so that the combination lock


6


is released from such an accidental locking condition.




In the embodiment shown in the drawings, a bearing hole


31


is formed in an upper portion of the base body


1


to extend in a direction perpendicular to the plane of the front surface of the door


30


. Rotatably received in such a bearing hole


31


of the base body


1


in an insertion manner is a locking shaft


29


which is not axially slidable in the bearing hole


31


. The locking shaft


29


is provided with a square-column portion


29




a


in its rear end portion. All the locking member


3


, a swing-angle limiting plate


71


and a washer


72


are mounted on the rear end square-column portion


29




a


of the locking shaft


29


in an insertion manner. Then, a bolt


101


is threadably connected with a threaded hole of a rear end surface of the square-column portion


29




a


of the locking shaft


29


, and then tightened in the threaded hole of the locking shaft


29


, so that the locking member


3


and the swing-angle limiting plate


71


are fixed to the square-column portion


29




a


of the locking shaft


29


through the washer


72


.




Formed in an upper rear portion of the handle


2


is a concave portion


36


. This concave portion


36


assumes a substantially fan-like shape in longitudinal section to swingably receive therein a front end portion of the locking shaft


29


More specifically, the handle


2


had its upper end portion corresponding to its concave portion


36


pivoted to the front end portion of the locking shaft


29


through a second pivot or cross pivot


28


. This cross pivot


28


extends in parallel with a front surface of the door


30


in a direction perpendicular to the longitudinal axis of the handle


2


. In operation, when the handle


2


is folded down so as to be embedded in the base body


1


, it is possible for the front concave portion


27


of the base body


1


to receive therein a rear portion of an essential part of the handle


2


. Formed in a lower end portion of the handle


2


is a flange


37


serving as a fingertip engaging edge portion


37


, which bulges out downward in the longitudinal direction of the door handle


2


. Even when the handle


2


is in its folded position, the fingertip engaging edge portion


37


of the handle


2


is still spaced apart forward from a front surface of the corresponding lower portion of the base body


1


, which enables the person or user to pick up the lower free end portion of the handle


2


in an easy manner.




On the other hand, when the door handle


2


is in its raised position in which the door handle


2


is inclined forward, it is possible for the user or person to swing sideward or turn the door handle


2


on the locking shaft


29


together with this locking shaft


29


relative to the base body


1


.




Formed in an intermediate portion of the door handle


2


to extend in the longitudinal direction of the door handle


2


is an elongated hollow portion


38


for receiving therein a combination lock


6


. The hollow portion


38


of the door handle


2


is open at the rear side of the door handle


2


to form an opening which is covered by a back plate member


39


.




As is clear from

FIGS. 7

to


19


, the combination lock


6


is constructed of a plurality of its components. Essential ones of these components of the combination lock


6


are: a plurality of the marked dial discs


4


, a plurality of cam discs


41


, each of which has a part thereof inserted into a center through-hole of the dial disc


4


and stacked together into a neat pile; the center pin


20


, which assumes the same shape as that of a round bar and inserted into a center hole


42


of each of the cam discs


41


; a compression coil spring


43


for urging downward such a neat pile consisting of both the dial discs


4


and the cam discs


41


toward the cylinder lock


13


; and, the lock plate


5


, which is provided with a rectangular opening portion


44


to receive therein a part of each of the dial discs


4


.




As shown in

FIGS. 11

to


13


, the center through-hole


40


of the dial disc


4


is constructed of: a small-diameter bore portion


40




a


; and, a pair of large-diameter bore portions


40




b


and


40




c


, sandwiched in between which is the small-diameter bore portion


40




a


. In a normal condition, under the influence of a resilient force exerted by the compression coil spring


43


, a small-diameter sleeve portion


41




a


of the cam disc


41


, which is inserted into the small-diameter bore portion


40




a


of the dial disc


4


from above, projects downward from the lower large-diameter bore portion


40




c


of the dial disc


4


, so that a large-diameter flange portion


41




b


of the cam disc


41


is received in the upper large-diameter bore portion


40




b


of the dial disc


4


. At the same time, the large-diameter flange portion


41




b


has its upper end surface abut against a lower end surface of the small-diameter sleeve portion


41




a


of the upper adjacent cam disc


41


. A part of the peripheral portion of the dial disc


4


projects forward through a laterally elongated slot


68


formed in a front surface of the door handle


2


.




As shown in

FIGS. 14

to


16


, formed in a peripheral surface of a root portion of the small-diameter sleeve portion


41




a


of the cam disc


41


are a pair of diametrically opposed projection groups, each of which groups contains three piece of equally-spaced interlocking projections


45


. On the other hand, formed in an inner peripheral surface of the small-diameter bore portion


40




a


of the dial disc


4


are ten piece of equally-spaced interlocking grooves


46


which corresponds in number to the marks “1” to “


10


” provided in the outer peripheral surface of the dial disc


4


. The dial disc


4


and the corresponding cam disc


41


are combined with each other through engagement established between the interlocking projections


45


of the cam disc


41


and the corresponding interlocking grooves


46


of the dial disc


4


.




In order to change the combination of the marks of the dial discs


4


in the combination lock


6


, it is necessary to slide or displace the cam disc


41


upward by a distance equal to an axial length of the interlocking groove


46


. Such an axial displacement of the cam disc


41


relative to the adjacent one of the dial discs


4


makes it possible for the cam disc


41


to have its interlocking projections


45


disengaged from the corresponding interlocking grooves


46


of the dial disc


4


. After that, the cam disc


41


is rotated on its center axis relative to the dial disc


4


by a predetermined angle which is equal to an integral multiple of the interval between adjacent ones of the interlocking grooves


46


. Then, the thus rotated cam disc


41


is returned or displaced downward to its initial level or height. As a result, the combination of marks of the dial disc


4


is changed to a new unique combination of the marks in the combination lock


6


.




An outer peripheral portion of the large-diameter flange portion


41




b


of the cam disc


41


is partially cut off to form a pair of V-shaped notch portions


47


which are adjacent to each other to form a large-angle notch in appearance. The lock plate


5


is provided with a pair of V-shaped receiving grooves


48


in cross section. These grooves


48


of the lock plate


5


are formed in a bridge portion between adjacent ones of the rectangular opening portions


44


of the lock plate


5


and correspond, in position and contour, to the V-shaped notch portions


47


of the cam disc


41


. When the V-shaped notch portions


47


of the cam disc


41


engage with the rectangular opening portions


44


of the lock plate


5


, the lock plate


5


is in a position in which the locking end portion


25


of the lock plate


5


is free from the restriction portion


26


of the slider


21


, when the V-shaped notch portions


47


of the cam disc


41


are disengaged from the rectangular opening portions


44


of the lock plate


5


, a crest portion of the lock plate


48


in cross section between its V-shaped receiving grooves


48


abuts against the circular outer peripheral surface of the large-diameter flange portion


41




b


of the cam disc


41


. This permits the lock plate


5


to rotate on its center axis to one of its angular positions, in which one the locking end portion


25


of the lock plate


5


abuts against is the restriction portion


26


of the slider


21


.




An upper support protection


49




a


and a lower support projection


49




b


are formed in an upper end portion and a lower end portion of the lock plate


5


respectively. Further, the lock plate


5


has its support projections


49




a


,


49




b


oppositely disposed from its locking end portion


25


. The upper support projection


49




a


is supported by an upright wall plate portion


50


of the back plate member


39


. On the other hand, the lower support projection


49




b


is supported in a through-hole


52


of a partition wall plate


51


which is fixedly mounted on the back plate member


39


. The lock plate


5


is resiliently urged forward by means of a compression coil spring


53


to prevent its locking end portion


25


from abutting against the restriction portion


26


of the slider


21


.




The center pin


20


of the combination lock


6


has its upper and its lower end portion inserted into an upper pin hole


54


and a lower pin hole


55


, respectively, wherein: the upper pin hole


54


is formed in the upright wall plate portion


50


of the back plate member


39


; and, the lower pin hole


55


is formed in the partition wall plate


51


. On the other hand, the compression coil spring


43


for urging downward both the dial discs


4


and the cam discs


41


is loosely mounted on the upper end portion of the center pin


20


and compressed between the uppermost one of the cam discs


41


and the upright wall plate portion


50


.




The slider


21


is constructed of a plate member and capable of sliding along the back plate


39


. A plurality of inner guide projections


56


are formed in both a main body and a pair of opposite side portions of the back plate


39


to extend inside the back plate


39


to slidably guide the slider


21


. Also formed in the back plate


39


is a first spring support projection


57


, which cooperates with a second spring support projection


59


of the slider


21


to support the compression coil spring or second spring member


22


therebetween. The second spring member


22


is used to urge the slider


21


downward toward the receiver lever


16


. Further, the slider


21


is provided with a guide groove


58


which receives therein the guide projection


56


of the back plate


39


.




The first pivot


17


of the receiver lever


16


extends in parallel with the front surface of the door


30


. On the other hand, the slider


21


is provided with an escape opening


60


for preventing both the compression coil spring


53


and the partition wall plate


51


from interfering with the slider


21


in operation. An L-shaped opening


61


is formed in the back plate


39


oppositely disposed from the slider


21


.




The center pin


20


of the combination lock


6


is provided with a flange portion


20




a


which abuts against the lowermost one of the cam discs


41


The reset lever


62


has its proximal end ring portion


63


rotatably mounted on the center pin


20


in a position between the flange portion


20




a


and the partition wall plate


51


. On the other hand, in a normal condition, a grip portion


64


of the reset lever


62


passes through a vertical portion


61




a


of the L-shaped opening


61


of the back plate


39


.




In order to perform the resetting operation or the changing operation of the combination of the marks of the dial discs


4


in the combination lock


6


, it is necessary for the user to grip and push upward the grip portion


64


of the reset lever


62


. The grip portion


64


of the reset lever


62


projects rearward beyond the back plate


39


through its L-shaped opening


61


to facilitate such a pushing-up operation of the reset lever


62


. When the reset lever


62


thus pushed up, the pile of the cam discs


41


is pushed up toward the locking shaft


29


in a manner such that the interlocking projections


45


of the cam discs


41


are disengaged from the corresponding interlocking grooves


46


of the dial discs


4


. In order to keep the pile of the cam discs


41


in their pushed-up position, it is necessary for the user to slightly tilt the reset lever


62


in a manner such that the grip portion


64


of the reset lever


62


is engaged with a lateral portion


61




b


of the L-shaped opening


61


.




After turning each of the dial discs


4


in a normal or a reverse direction a desired number of times, the cam discs


41


have their interlocking projections


45


engaged with the corresponding interlocking grooves


46


of the dial discs


4


to determine a new combination of the marks of the dial discs


4


, wherein such a new combination differs from the previous combination of the marks of the dial discs


4


.




In the outer peripheral surface of each of the cam discs


41


, there are formed a plurality of positioning grooves


66


at predetermined intervals. The number of these positioning grooves


65


of the cam disc


41


is the same as that of the marks of the dial disc


4


. On the other hand, a third spring member


66


for keeping the dial discs


4


in their desired angular positions is fixedly mounted on the side wall portion of the back plate member


39


in a manner such that the third spring member


66


has its front end projections


67


resiliently engaged with the corresponding positioning grooves


65


of the cam discs


41


.




As the internal lock mechanism


10


of the cylinder lock


13


, there is used a conventional disc tumbler lock mechanism in which: an eccentric cam projection


69


formed in a rear end surface of the rotor


8


of the cylinder lock


13


is slidably received in a laterally elongated slot


70


formed in the proximal end portion of the stopping plate


11


.




As an example of the internal lock mechanism


10


, there is a pin tumbler lock mechanism or the like which is capable of being employed in the door locking handle assembly of the present invention.




The threaded hole


89


is formed on the base body


1


at a more inner position than the pivot


81


upright to the door


30


. The set screw


82


may be fitted into the threaded hole


89


at a given length at the stage of forwarding or shipping.




The fastening stopper


80


of plate shape is provided with a stabilizing surface portion


86


on the more leading end side than the second cam surface portion


84


. When the set screw


82


is fitted into the threaded hole


89


up to the required depth, the leading end portion abuts on the stabilizing surface portion


86


.




Thereby, the fastening stopper


80


is stably held in such a full attaching position that the front side edge surface


80




a


of the fastening stopper


80


engages with simultaneously both the rear surface


93




c


of the front flange


93


and the rear side edge portion


32




b


of the attaching opening


32


.




The fastening stopper


80


is provided with a locating surface portion


87


at the position between the stabilizing surface portion


86


and the front side edge surface


80




a


. When the locating surface portion


87


abuts on an inner side surface


94




a


, the fastening stopper


80


is retreated into the hollow portion


94


as a whole.




The spring


85


for the fastening stopper


80


is composed of a torsion coil spring. A bent portion


85




a


of the spring


85


is housed in a rear pocket portion of the hollow portion


94


, and an elongated portion


85




b


of the spring


85


abuts on the inner side surface


94




a


of the hollow portion


94


, and the other elongated portion


85




c


of the spring


85


abuts on a shoulder portion


88


of the fastening stopper


80


.




A front surface


90




a


of the rear projection


90


of the base body


1


is inclined relative to the front surface


30




a


of the door


30


so as to make the operation of engagement between the locating groove


92


and the rear edge portion


32




a


of the attaching opening


32


much easier, so as to make the adjustment extent in relation to the change in door thickness much wider. The hollow portion also opens toward the other end of the base body


1


. The front flange


93


is formed around the outer surface of the front end portion of the base body


1


.




The base body


1


is provided with a heat radiation, hole(s)


99


on the wall. A holder member


95


is fixed to the inside surface of the base body


1


by screw


95




a


. receiver lever


16


is pivoted on the holder member


95


by a pivot


17


. A spring


19


for the receiver lever


16


is composed of a torsion coil spring. A coil portion of the spring


19


is fitted on the pivot


17


.




In the door locking handle assembly of the present invention of the first aspect: when the predetermined combination of the marks of the dial discs


4


of the combination lock


6


is established, the combination lock


6


is unlocked; the cylinder lock


13


is unlocked using the key


7


; the combination lock


6


is incorporated in the handle


2


together with the cylinder lock


13


in a manner such that these locks


6


,


13


are disposed adjacent to each other in the longitudinal direction of the handle


2


; the receiver lever


16


pivoted to the base body


1


is controlled in motion by means of the lock plate


5


; the stopper plate


11


which is engaged with and disengaged from the receiver lever


16


is mechanically interlocked with the rotor


8


of the cylinder lock


13


to make it possible to lock and unlock the handle


2


to and from the base body


1


, so that it is possible for the present invention to downsize the door locking handle assembly in thickness as a whole in a condition in which a large number of eligible keys


7


are provided in an easy manner; and, it is possible for the control operator of the various instruments contained in the box or container to control a large number of the users or persons in various control modes through the computerized personal management system without fail.




Further, in the door locking handle assembly of the first aspect, it is possible to prevent the receiver lever


16


from turning or moving toward its unlocked position by simply having the upper end portion


14


of the stopping plate


11


abut against the cam slope


18


of the receiver lever


16


. Due to this, in the door locking handle assembly of the present invention, there is no need for a separate drive mechanism for driving the receiver lever


16


. This makes it possible to reduce the number of the components or parts of the door locking handle assembly and therefore possible to simplify the assembly in construction.




If other physical solid body collides or contacts with the front surface


2




a


of the handle


2


under transportation or in use, the marked dial discs


4


do not collide or contact with it directly, because an outer peripheral portion of each of the dial discs


4


projects into the dent portion


100


through the slot


68


of the handle


2


in such a manner that the outer peripheral surface of the dial disc


4


is set back from a virtual extension plane of the front surface


2




a


of the handle


2


. Thereby, the marked dial discs


4


are prevented from getting out of order or breaking down, and their function can be kept in good stability.




In the door locking handle assembly of the invention of the first aspect and the third aspect, the base body


1


is fitted into an attaching opening


32


of a door


30


so that the rear edge portion


32




a


of one of longitudinal ends of the attaching opening


32


is engaged with a locating groove (


92


), which is formed between the rear projection (


90


) and one of longitudinal ends (


93




a


) of the front flange (


93


), and then, the set screw


82


is driven into the threaded hole


89


of the base body


1


so that the leading end of the set screw


82


pushes the fastening stopper


80


, and thereby, the fastening stopper


80


is rotated outward so that the front side edge surface


80




a


of the fastening stopper


80


engages with both the rear surface


93




c


of said end portion


93




b


of the front flange


93


and the rear side edge portion


32




b


of the other of longitudinal ends of the attaching opening


32


. As a result, the base body


1


is fixedly fastened to the door


30


with having the front flange


93


abutted on the front surface


30




a


thereof.




Therefore, it is not necessary to perforate threaded holes and through holes for attaching screws in the door, and it is easy to simplify the perforating works.




In the door locking handle assembly of the invention of the fourth aspect, when the base body


1


is inserted into the attaching opening


32


, and the front flange


93


of the base body


1


abuts onto the front surface


30




a


of the door


30


, the fastening stopper


80


is rotated automatically by the spring


85


so that the front side edge surface


80




a


of the fastening stopper


80


engages with both the rear surface


93




c


of the front flange


93


and the rear side he portion (


32




b


) of the attaching opening (


32


). Because the base body


1


is temporarily held in a given attaching position in such a way, there is no need to hold the door handle assembly from the front side of the door in he screw fixing operation. As a result, the operation efficiency in attaching is more improved.




In the door locking handle assembly of the invention of the fifth aspect, the handle assembly can be adapted various doors, which are different in thickness, because the front side edge surface


80




e


of the fastening stopper


80


is formed as curved shape.




In the door looking handle assembly of the invention of the sixth aspect, the base body


1


is fixed on the door


30


with cooperation of the locating groove


92


and the fastening stopper


80


, and thereafter, the leading end of a pushing screw


97


, which is fitted into said threaded hole


98


, abuts or pushes to the rear surface


30




b


of the door


30


. Therefore, the attaching of the handle assembly to the door


30


is accomplished much securely.



Claims
  • 1. In a door locking handle assembly with a built-in combination lock (6), the assembly being provided with a base body (1) which is fixedly mounted on a door (30) of a box, wherein a handle (2) is pivoted to said base body (1) so as to be capable of being pulled out forward and pushed back rearward relative to said base body (1), wherein a locking member (3) serving as a door bolt for locking said door (30) to a main body of said box is directly or indirectly connected with said handle (2) so as to be engaged with and disengaged from a receiving portion of a stationary frame element such as said main body of said box when said handle (2) is pulled out forward and then turned sideward on said locking shaft (29) after completion of the pulling-out operation of said handle (2), the improvement wherein:said combination lock (6), which is provided with a plurality of marked dial discs (4), is incorporated in said door handle (2) and opened by turning each of said marked dial discs (4) a given number of times to establish a predetermined combination of marks for unlocking, which marks are provided on outer peripheral surfaces of said dial discs (4); said combination lock (6) is held in its locked condition when said predetermined combination of marks for locking is not established; a plurality of slots (68) are formed on a bottom surface of a dent portion (100), which is formed on a front surface of said handle (2); an outer peripheral portion of each of said dial discs (4) projects into said dent portion (100) through said slot (68) in such a manner that an outer peripheral surface of said dial disc (4) is set back from a virtual extension plane of the front surface (2a) of said handle (2); a cylinder lock (13) is incorporated in said handle (2) and disposed adjacent to said combination lock (6) in a longitudinal direction of said handle (2), wherein said cylinder lock (13) is provided with a rotor (8); when a key (7) is inserted into a keyhole (9) of said rotor (8) of said cylinder lock (13), said cylinder lock (13) has its internal lock mechanism (10) unlocked to permit said rotor (8) to be turned by said key (7) thus inserted into said keyhole (9) of said rotor (8); when said roto (8) is turned a stopper plate (11) which is slidably received in a side through-hole (12) of said handle (2) is driven in a manner such that said stopping plate (11) is projected outward from said side through-hole (12) and retracted from the outside of said door handle (2); said stopping plate (11) has its upper end portion (14) abut against a shoulder portion (15) of a lower surface of a proximal end portion of a receiver lever (16); said receiver lever (16) has its proximal end portion pivoted to an inner wall portion of said base body (1) through a first pivot (17); said shoulder portion (15) of said receiver lever (16) is provided with a cam slope (18) through which said receiver lever (16) is pushed upward by said upper end portion of said stopper plate (11); said receiver lever (16) is rotatably urged toward said stopping plate (11) by means of a first spring member (19); a slider (21) is disposed in parallel with a center pin (20) of said combination lock (6), and urged toward said cylinder lock (13) by means of a second spring member (22) in a manner such that a lower end portion (23) of said slider (21) abuts against an upper surface of said receiver lever (16), so that said slider (21) has its restriction portion (26) engaged with and disengaged from a locking end portion (25) of a lock plate (5) when said lock plate (5) is held in its locked position and its unlocked position, respectively; when said lock plate (5) is held in its unlocked position, said handle (2) is capable of being pulled forward out of said base body (1); when said handle (2) is thus pulled out forward, said stopping plate (11) pushes said cam slope (18) of said receiver lever (16) swingably upward so that said receiver lever (16) is moved to its unlocked position; and when said lock plate (5) is held in its locked position, said lock plate (5) has its locking end portion (25) engaged with said restriction portion (26) of said slider (21) to prevent said receiver lever (16) from turning on said first pivot (17).
  • 2. The door locking handle assembly having the structure of a claim 1, which assembly has further the following structure, wherein;said base body (1) is fitted into an attaching opening (32) of a door (30) from the front side of the door (30), and a front flange (93) is formed on outer surface of the base body (1), which front flange abuts on a front surface (30a) of the door (30); a rear projection (90), which is formed on one of longitudinal ends of the base body (1), passes through the attaching opening (32) to the rear side of the door (30); a rear edge portion (32a) of one of longitudinal ends of the attaching opening (32) engages with a locating groove (92), which is formed between said rear projection (90) and one of longitudinal ends (93a) of said front flange (93); a hollow portion (94), which is formed in the other of longitudinal ends of said base body (1) disposed on the rear side of the door (30), is opened toward the other end (93b) of longitudinal ends of said front flange (93); a fastening stopper (80) is housed in said hollow portion (94), and pivoted to said base body (1) by a pivot (81) which is parallel to the front surface (30a) of said door (30); a set screw (82) is fitted through a threaded hole (89), which is formed in a rear wall portion the base body (1), and a leading end of the set screw (82) projects into the hollow portion (94); and a front side edge surface (80a) of said fastening stopper (80) is brought into engagement with both a rear surface (93c) of said end portion (93b) of the front flange (93) and a rear side edge portion (32b) of the other of longitudinal ends of said attaching opening (32) with pressing the fastening stopper (80) by said set screw (82).
  • 3. The door locking handle assembly having the structure of claim 2, which assembly has further the following structure, wherein;when the base body (1) is inserted into the attaching opening (32) of the door (30), a first cam surface portion (83), which is formed on the outer edge of said fastening stopper (80), slidably contacts with the front side edge portion (32c) of the other of longitudinal ends of the attaching opening (32) so that the fastening stopper (80) is retreated into said hollow portion 94; and when the set screw (82) is fitted through the threaded hole (89), a second cam surface portion (84), which is formed on the inner edge of the fastening stopper (80), slidably contacts with a leading end of said set screw (82) so that the fastening stopper (80) is pushed out ward from the hollow portion (94).
  • 4. The door locking handle assembly having the structure of claim 2, which assembly has further the following structure, wherein;a spring member (85), which is disposed between the fastening stopper (80) and the base body (1), urges the fastening stopper (80) so as to project outside of the rear edge portion (32b) of the attaching opening (32).
  • 5. The door locking handle assembly having the structure of claim 2, which assembly has further the following structure, wherein;said front side edge surface (80a) of said fastening stopper (80), which is formed as a curved shape, engages with both the rear surface (93c) of said end portion (93b) of the front flange (93) and the rear side edge portion (32b) of the other of longitudinal ends of said attaching opening (32).
  • 6. The door locking handle assembly having the structure of claim 2, which assembly has further the following structure, wherein;a threaded hole (98) is formed on said rear projection (90) of the base body (1) upright to the door (30), and a leading end of a pushing screw (97), which is fitted into said threaded hole (98), abuts onto a rear surface (30b) of the door (30).
  • 7. In a door locking handle assembly with a built-in combination lock (6), the assembly being provided with a base body (1) which is fixedly mounted on a door (30) of a box, wherein a handle (2) is pivoted to said base body (1) so as to be capable of being pulled out forward and pushed back rearward relative to said base body (1), wherein a locking member (3) serving as a door bolt for locking said door (30) to a main body of said box is directly or indirectly connected with said handle (2) so as to be engaged with and disengaged from a receiving portion of a stationary frame element such as said main body of said box when said handle (2) is pulled out forward and then turned sideward on said locking shaft (29) after completion of the pulling-out operation of said handle (2), the improvement wherein:said combination lock (6), which is provided with a plurality of marked dial discs (4), is incorporated in said door handle (2) and opened by turning each of said marked dial discs (4) a given number of times to establish a predetermined combination of marks for unlocking, which marks are provided on outer peripheral surfaces of said dial discs (4); said combination lock (6) is held in its locked condition when said predetermined combination of marks for locking is not established; a plurality of slots (68) are formed on a bottom surface of a dent portion (100), which is formed on a front surface of said handle (2); an outer peripheral portion of each of said dial discs (4) projects into said dent portion (100) through said slot (68) in such a manner that an outer peripheral surface of said dial disc (4) is set back from a virtual extension plane of the front surface (2a) of said handle (2); a cylinder lock (13) is incorporated in said handle (2) and disposed adjacent to said combination lock (6) in a longitudinal direction of said handle (2), wherein said cylinder lock (13) is provided with a rotor (8); when a key (7) is inserted into a keyhole (9) of said rotor (8) of said cylinder lock (13), said cylinder lock (13) has its internal lock mechanism (10) unlocked to permit said rotor (8) to be turned by said key (7) thus inserted into said keyhole (9) of said rotor (8); when said rotor (8) is turned, a stopper plate (11) which is slidably received in a side through-hole (12) of said handle (2) is driven in a manner such that said stopping plate (11) is projected outward from said side through-hole (12) and retracted from the outside of said door handle (2); said stopping plate (11) has its upper end portion (14) abut against a shoulder portion (15) of a lower surface of a proximal end portion of a receiver lever (16); said receiver lever (16) has its proximal end portion pivoted to an inner wall portion of said base body (1) through a first pivot (17); said shoulder portion (15) of said receiver lever (16) is provided with a cam slope (18) through which said receiver lever (16) is pushed upward by said upper end portion of said stopper plate (11); said receiver lever (16) is rotatably urged toward said stopping plate (11) by means of a first spring member (19); a slider (21) is disposed in parallel with a center pin (20) of said combination lock (6), and urged toward said cylinder lock (13) by means of a second spring member (22) in a manner such that a lower end portion (23) of said slider (21) abuts against an upper surface of said receiver lever (16), so that said slider (21) has its restriction portion (26) engaged with and disengaged from a locking end portion (25) of a lock plate (5) when said lock plate (5) is held in its locked position and its unlocked position, respectively; when said lock plate (5) is held in its unlocked position, said handle (2) is capable of being pulled forward out of said base body (1); when said handle (2) is thus pulled out forward, said stopping plate (11) pushes said cam slope (18) of said receiver lever (16) swingably upward so that said receiver lever (16) is moved to its unlocked position; when said lock plate (5) is held in its locked position, said lock plate (5) has its locking end portion (25) engaged with said restriction portion (26) of said slider (21) to prevent said receiver lever (16) from turning on said first pivot (17); wherein: said base body (1) is fitted into an attaching opening (32) of a door (30) from the front side of the door (30), and a front flange (93) is formed on outer surface of the base body (1), which front flange abuts on a front surface (30a) of the door (30); a rear projection (90), which is formed on one of the longitudinal ends of the base body (1), passes through the attaching opening (32) to the rear side of the door (30); a rear edge portion (32a) of one of longitudinal ends of the attaching opening (32) engages with a locating groove (92), which is formed between said rear projection (90) and one of longitudinal ends (93a) of said front flange (93); a hollow portion (94), which is formed in the other of longitudinal ends of said base body (1) disposed on the rear side of the door (30), is opened toward the other end (93b) of longitudinal ends of said front flange (93); a fastening stopper (80) is housed in said hollow portion (94), and pivoted to said base body (1) by a pivot (81) which is parallel to the front surface (30a) of said door (30); a set screw (82) is fitted through a threaded hole (89), which is formed in a rear wall portion of the base body (1), and a leading end of the set screw (82) projects into the hollow portion (94); a front side edge surface (80a) of said fastening stopper (80) is brought into engagement with both a rear surface (93c) of said end portion (93b) of the front flange (93) and a rear side edge portion (32b) of the other of longitudinal ends of said attaching opening (32) with pressing the fastening stopper (80) by said set screw (82), whereby: when the base body (1) is inserted into the attaching opening (32) of the door (30), a first cam surface portion (83), which is formed on the outer edge of said fastening stopper (80), slidably contacts with the front side edge portion (32c) of the other of longitudinal ends of the attaching opening (32) so that the fastening stopper (80) is retreated into said hollow portion 94; and when the set screw (82) is fitted through the threaded hole (89), a second cam surface portion (84), which is formed on the inner edge of the fastening stopper (80), slidably contacts with a leading end of said set screw (82) so that the fastening stopper (80) is pushed outward from the hollow portion (94).
Priority Claims (1)
Number Date Country Kind
2002-209149 Jul 2002 JP
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Number Name Date Kind
4356712 Bako Nov 1982 A
4557122 Hwang Dec 1985 A
4770013 Nakai Sep 1988 A
4852371 Pfeiffer Aug 1989 A
4972691 Knight Nov 1990 A
5020346 Eisermann Jun 1991 A
5063764 Amis et al. Nov 1991 A
5345798 Nakai Sep 1994 A
5467623 Yamada et al. Nov 1995 A
5638708 Hsu Jun 1997 A