Hoop lock

Information

  • Patent Grant
  • 6584815
  • Patent Number
    6,584,815
  • Date Filed
    Wednesday, May 30, 2001
    23 years ago
  • Date Issued
    Tuesday, July 1, 2003
    21 years ago
Abstract
The invention elates to a hoop lock comprising a lock body and a hoop. The hoop can be coupled a its hoop ends to the lock body and latched thereto in the coupled state wherein two force cells spatially separated from one another are arranged in the lock body for the reception of the hoop ends. Each force cell is associated with a latching arrangement for a hoop end which is adjustable between a latched state and a released state and which can be actuated via a locking unit. At least one latching arrangement has a bolt element whose side remote from the inserted hoop end is supported at the force cell in the latched state.
Description




FIELD OF THE INVENTION




The invention relates to a hoop lock comprising a lock body and a hoop which can be coupled to the lock body at its hoop ends and which can be latched thereto in the coupled state.




BACKGROUND OF THE INVENTION




There is a problem with such locks in that the locking mechanism can be deformed or displaced by blows onto the lock body in the latched state such that the hoop can also be pulled out of the lock body in the latched state. While actions to strengthen the lock body could result in an improved protection of the locking mechanism, these would, however, disadvantageously increase the weight of the lock.




SUMMARY OF THE INVENTION




It is the object of the invention to provide a hoop lock of the kind initially mentioned which is secure against being broken open while having the lowest possible weight.




This object is satisfied in accordance with the invention in that two force cells, which are spatially separated from one another, are arranged for the reception of the hoop ends and in that each force cell is associated with a latching arrangement for a hoop end which can be adjusted between a latched state and a released state and which can be actuated via a locking unit, with at least one latching arrangement comprising a bolt element whose side remote from the inserted hoop end is supported at the force cell in the latched state.




The support in accordance with the invention of the bolt element at the force cell prevents the bolt element from being moved out of engagement with the hoop end in the latched state. The support of the bolt element at the force cell can take place either directly or indirectly via an additional, separate component. Deformations of the bolt actuations due to blows onto the lock body do not impair the latched state since such deformations have no effect on the support of the bolt element at the force cell. Break-open forces applied from the outside which attempt to move the bolt element out of its latched position in the latched state are absorbed by the force cell in accordance with the invention and rendered ineffective in this way.




It is particularly preferred if, in at least one force cell, both the side of the inserted hoop end remote from the bolt element and the bolt element are supported at the same component of the force cell. A particularly stable force cell is provided in this way.




At least one force cell can have walls formed in particular as drill protection and/or blow protection, which at least partly bound a protected space for at least the hoop end and the bolt element, with the force cell serving not only the absorption of forces acting on the hoop end and the bolt element, but also additionally increasing the resistance to other external influences such as attempts to cancel the latching engagement between hoop end and bolt element by drilling it open.




In a particularly preferred practical embodiment of the invention, at least one force cell has a U section whose open side faces the other force cell. The U section can be arranged such that the hoop end is inserted at the side between the limbs of the U and consequently extends perpendicular to the limbs of the U in the inserted state. It is preferred if a side of the hoop end remote from the bolt element is supported at the U base connecting the U limbs and the bolt element is supported at at least one U limb. The hoop end and the bolt element are in this way surrounded on three sides by section walls and protected against external influences. This embodiment in particular provides an advantageous protection of the hoop end at the end face of the lock body by the U base of the U section.




The latching arrangement can be made in multiple parts and have, in addition to the bolt element, a positioning element which can be actuated via the locking unit and via which the bolt element is indirectly supported at the force cell. It is also alternatively possible to provide a one-part latching arrangement in the form of a bolt element supported directly at the force cell which both cooperates with the hoop end to be inserted and can be actuated via the locking unit.




In a preferred embodiment of a multiple part latching arrangement, the positioning element is formed as a pivoted lever comprising an actuating arm and a support arm. The pivoted lever can be pivoted via the actuating arm by means of the locking unit between a latched position in which the bolt element is supported at the force cell via the support arm, and is thus secured in a latched position by the support arm, and a released position in which it is possible to move the latching element out of its latched position.




A pivotal support of the pivoted lever at the force cell can take place, for example, by the pivoted lever extending between opposite walls of the force cell and being supported at apertures in the walls forming support regions.




It is particularly preferred if the latching arrangement is made self-locking. This can be done, for example, by dead travel and/or play of the positioning element. It can be achieved with the self-locking that the securing effect of the positioning element is not weakened or cancelled in typical break-open attempts such as blows onto the lock body, but is rather strengthened.




A preferred possibility for implementation of such a self-locking of the latching arrangement consists of supporting the positioning element such that it can be moved beyond a maximum latched position which can be set by the locking unit, with the bolt element being supported and/or secured at the force cell in every additional position via the positioning element. In this way, the inertia of the positioning element can be utilized which, in the event of blows onto the lock body, results in a relative movement between the force cell which moves along with it and the positioning element.




It is preferred if the positioning element can be brought into engagement with the bolt element by such a relative movement and can, in particular, be clamped or wedged between the bolt element and the force cell.




Due to the self-locking effect in accordance with the invention, exactly the opposite effect of that intended in such break-open attempts is consequently achieved by blows onto the lock body.




In a further preferred embodiment of the invention, the bolt element can be moved out of a latched position in the released state by pulling the hoop end out of the force cell. It is preferred if the bolt element is pre-stressed into the latched position by a spring member arranged in or projecting into the force cell. The restoring force of the spring member is preferably set such that the inserted hoop is held at the lock body secure against falling out.




Further preferred embodiments of the invention are also given in the dependent claims, the description and the drawing.











BRIEF DESCRIPTION OF THE DRAWINGS




The invention is described below by way of example with reference to the drawing, in which are shown:





FIG. 1

a cut-open side view of a hoop lock in accordance with an embodiment of the invention;





FIG. 2

the region of a force cell of the hoop lock of

FIG. 1

with additional components not shown in

FIG. 1

;





FIG. 3

a section through the hoop lock of

FIG. 1

along the lines


3





3


;





FIG. 4

a section through the hoop lock of

FIG. 1

along the line


4





4


;





FIG. 5

a section through the hoop lock of

FIG. 1

along the line


5





5


;





FIG. 6

a perspective part view, enlarged with respect to

FIG. 1

, in the region of a force cell;





FIG. 7

the view of

FIG. 6

in a phantom representation;





FIG. 8

the region shown in

FIG. 6

in a side view;





FIG. 9

the region of a force cell of a hoop lock in accordance with a further embodiment of the invention in a side view;





FIG. 10

a perspective view of the region of

FIG. 9

in a phantom representation;





FIG. 11

the region of a force cell of a hoop lock in accordance with a further embodiment of the invention in a side view; and





FIG. 12

a perspective representation of the region of

FIG. 11

in a phantom representation.











DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION





FIG. 1

shows the hoop lock in accordance with the invention, which comprises a lock body


10


and a hoop


12


, in a latched state in which the hoop ends


14


of the hoop


12


are inserted into force cells


16


of the lock body


10


which are described in more detail in the following and which are each arranged in the region of a tube end spatially separated from one another in a tubular housing


28


.




A latching arrangement, which is arranged in the force cell


16


and which comprises a bolt element


18


in the shape of a roller and a positioning element in the form of a pivoted lever


20


, is provided for the latching of each hoop end


14


. In the latched state, the bolt


18


is located in a latched position in which it engages in a bolt receiver


15


of the hoop end


14


matched to its shape and is supported at the force cell


16


by a support arm


34


of the pivoted lever


20


. The bolt element


18


is secured in the latched position in this way. An actuating arm


33


of the pivoted lever


20


, which forms an angle of more than 90° with the support arm


34


and which projects out of the force cell


16


, is coupled to the one end region of a linkage


26


which is connected to an actuating member


50


at its opposite end region. The linkage and the actuating member


50


form an actuating assembly via which the two pivoted levers


20


can be pivoted between the latched position shown and a released position by means of a lock cylinder


23


of a locking unit


22


indicated only schematically.




The actuating member


50


is rotationally fixedly connected to the lock cylinder


23


so that the linkage


26


can be adjusted along its longitudinal axis via actuating pins


52


of the actuating member


50


by turning the lock cylinder


23


by means of an inserted key (not shown).




The constructionally identical force cells


16


each comprise a U-shaped section


17


made of hardened metal with section walls


36


which form the limbs of the U and extend parallel to one another. The open sides of the U sections


17


face one another and are arranged so that the hoop ends


14


of the hoop


12


can be inserted between the section walls


36


.




The U sections


17


are each positioned in the lock body


10


relative to the insertion openings for the hoop


12


formed in the lock body


10


such that the side of the hoop end


14


remote from the latching arrangement


18


,


20


is supported at the section wall forming the U base


35


.




Apertures


37


are formed in the section walls


36


at whose bounding edges the bolt element


18


and the positioning element


20


, which extend between the section walls


36


, are supported.




The apertures


37


comprise for this purpose one reception region


37




a


each for the roller


18


which allows a movement perpendicular to the inserted hoop end


14


and thus in the longitudinal direction of the section walls


36


. The pivoted lever


20


is pivoted at support regions


37




b


of the apertures


37


and simultaneously supported such that a translatory movement of the pivoted lever


20


perpendicular to the inserted hoop end


14


is not possible.




The pivot region for the pivoted lever


20


is bounded by the shape of the apertures


37


such that the bounding edges of the apertures


37


form abutment surfaces


37




c


for the support arm


34


of the pivoted lever


20


.




The section walls


36


are provided in the region of their free ends with recesses


36




a


into which there engage protrusions


25


of a reception housing


24


for the locking unit


22


shown only schematically. The U sections


17


are in this way fastened secure against removal at the reception housing


24


and coupled to one another via the reception housing


24


. The U sections


17


can be latched to the reception housing


24


by being pushed onto the projections


25


.





FIG. 2

shows additional components not shown in

FIG. 1

which are arranged in the region of the force cells


16


. The components in question are, on the one hand, a spring arrangement of plastic which comprises a plate-like carrier


32


which extends perpendicular to the section walls


36


, which is arranged outside the U section


17


and which adjoins the side edges of the U section


17


. The carrier


32


is connected in one piece to perpendicularly protruding spring tongues


30


,


31


which project into the force cell


16


between the section walls


36


.




A spring tongue


30


whose free end regionally engages around the roller


18


serves to hold the roller


18


in its latched position even when the pivoted lever


20


is pivoted into the released position in which the roller


18


is not secured by the support arm


34


and thus is not supported at the U section


17


via the pivoted lever


20


.




The bolt element


18


can be moved out of its latched position in this released state by pulling the hoop end


14


out of the force cell


16


against the resetting force of the spring tongue


30


perpendicular to the inserted hoop end


14


. The spring tongue


30


is matched to the hoop


12


such that its resetting force is sufficiently great in order to prevent the hoop


12


from falling out due to its own weight alone; the inserted hoop


12


is therefore held secure against falling out at the lock body


10


in the released state by the bolt elements


18


pre-stressed into their latched position.




The other spring tongue


31


attached to the carrier


32


serves as a holding member for the pivoted lever


20


. The holding member holds the pivoted lever


20


in the support regions


37




b


of the section walls


36


. As a result, only pivotal movements of the positioning element


20


are possible, while translatory movements are prevented by the holding member


31


.





FIG. 2

further shows a cushion, buffer or damper member


54


made of plastic which is arranged on the inner side I of the lock body


10


facing the hoop


12


between the housing


28


of the lock body


10


and the U section


17


.




A lug


55


of th damper member


54


projects into the force cell


16


up to the bolt element


18


. The damper elements


54


arranged at both force cells


16


form an additional protection against breaking open which cushions blows onto the housing


28


of the lock body


10


. This damping is the subject of a German patent application of the applicant having Serial No.: DE 100 26 701.7 submitted on May 30, 2000 and whose disclosed content is herewith included in the present application by reference.




The carrier


32


arranged at the outside of the lock body


10


between its housing


28


and the U section


17


likewise provides such blow protection.




On the one hand, great external forces can be absorbed in a closed system by the force cells


16


in accordance with the invention. On the other hand, the force cells


16


allow a geometrical arrangement of the latching arrangements or the bolt elements such that external forces are distributed more uniformly and force or strain peaks are avoided. Distribution of external force takes place in a manner of speaking both spatially, namely by an enlarging of the expansion region, and temporally, namely by a reduction in mass accelerations. The above-mentioned cushions, buffers or dampers


54


also work in this sense.




It can in particular be seen from

FIG. 3

that the support arm


34


of the positioning element


20


is formed in a fork shape so that the spring member


30


and the holding member


31


can project through the fork arms of the support arm


34


.




Moreover, recesses


27


are shown in

FIG. 3

in the end regions of the linkages


26


into which the respective free end of the actuating arm


33


of the pivoted lever


20


engages. The actuating arms


33


are arranged in the recesses


27


with play. This play in each case allows a self-locking function of the latching arrangement


18


,


20


which is explained in more detail in the following in connection with FIG.


8


.




Guide openings


53


are formed in regions of the linkages on top of one another which cooperate with the actuating pins


52


of the actuating member


50


which can be rotated via the lock cylinder


23


of the locking unit


22


. One of the two arms of each guide opening


53


serves for the reception of the actuating pin


52


displacing the relevant linkage


26


, while the other arm allows an unimpeded movement of the actuating pin


52


serving the displacement of the other linkage


26


. In the embodiment shown, the right hand actuating pin


52


in

FIG. 3

serves the movement of the lower linkage


26


, while the upper linkage


26


is moved via the left hand actuating pin


52


.




It can be seen in particular from

FIG. 4

that there is no, or at most only little, play present at each of the two force cells


16


between the U base


35


of the U section and the hoop end


14


, between the hoop end


14


and the roller


18


, between the roller


18


and the fork-like support arm


34


of the pivoted lever


20


and between the pivoted lever


20


and the section walls


36


.




In the latched state shown, the hoop end


14


is thus supported directly, and the bolt element


18


indirectly via the positioning element


20


, at opposing sides of the same component of the force cell


16


, namely the U section


17


. Movements of the bolt element


18


are not possible in this latched position supported and secured by the positioning element


20


. This latched state cannot be effected by attempts to break open, such as blows onto the lock body


10


, either since deformations of the linkages


26


possibly caused thereby do not alter the immobility of the bolt elements


18


.





FIG. 5

shows in particular the actuating arm


33


of the pivoted lever


20


projecting through the recess


27


of the linkage


26


.




In particular the support of the pivoted lever


20


in the support regions


37




b


of the apertures


37


formed in the section walls


36


can be seen from the perspective view of FIG.


6


. For this purpose, the fork arms of the fork-like support arm


34


are rounded at their end remote from the bolt element


18


so that they form support surfaces


34




b


with which the pivoted lever sits in the correspondingly shaped support regions


37




b


of the sections walls


36


or the apertures


37


.




In particular the bolt reception


15


of the hoop end


14


shaped in accordance with the outer contour of the roller-shaped bolt element


18


can be seen in FIG.


7


.




The side view of

FIG. 8

shows a latched state in which the pivoted lever is located in a latched position which can be set to a maximum via the locking unit


22


, i.e. the pivoted lever


20


can not be turned further in an anti-clockwise direction (with respect to

FIG. 8

) by means of a key inserted into the lock cylinder


23


, even though a small intermediate space is present between the support arm


34


and the corresponding abutment surface


37




c


of the apertures


37


which would permit a further pivotal movement of the pivoted lever


20


in an anti-clockwise direction.




However, the actuating arrangement comprising the linkage


26


does not hinder the pivoted lever


20


from such a further movement beyond the maximum latched position which can be set, since the actuating arm


33


of the pivoted lever


20


is arranged in the recess


27


of the linkage


26


with play (cf. in particular FIG.


3


). There is thus a dead travel or play of the pivoted lever


20


located in the maximum latched position which can be set, whereby a self-locking function of the latching arrangement


18


,


20


is realized.




The inertia of the pivoted lever


20


results in the pivoted lever


20


being further pivoted in a counter-clockwise direction relative to the U section


17


until it adjoins the abutment surface


37




c


in the event of blows onto the inside I of the lock body


10


.




This further pivotal movement of the pivoted lever


20


is associated with a stroke of a part of the support surface


34




a


of the pivoted lever


20


facing the bolt element


18


in the direction of the hoop end


14


, whereby the bolt element


18


is pressed against the hoop end


14


. This stroke can be absorbed by a small amount of play, for example between the U base


35


of the U section


17


and the hoop end


14


.




The size of the stroke depends in particular on the relative arrangement between the bolt element


18


and the pivoted lever


20


and on the course of the support surface


34




a.






In the embodiment shown, the support surface


34




a


extending perpendicular to the sides of the support arm


34


in the maximum latched position which can be set in accordance with

FIG. 8

forms an angle other than 90° with a line connecting the pivot axis S of the pivoted lever


20


and the center axis R of the bolt element


18


.




Blows onto the inner side I of the lock body


10


thus result in a self-locking of the latching arrangement


18


,


20


which results in a wedging of the support arm


34


of the pivoted lever


20


between the bolt element


18


and the U section


17


.




The support arm


34


of the pivoted lever


20


can also be further removed from the abutment surface


37




c


than shown in

FIG. 8

in the maximum latched position which can be set. Furthermore, the support surface


34




a


does not need to contact the bolt element


18


in the maximum latched position which can be set. The relative arrangement between the bolt element


18


and the pivoted lever


20


takes place in any case such that the bolt element


18


is secured in its latched position by the support arm


34


of the pivoted lever


20


not only in the maximum latched position which can be set, but also in any position of the pivoted lever


20


beyond this.





FIGS. 9 and 10

show a further embodiment of the invention in which the bolt element


118


is bent in a U-shaped manner and extends between the section walls


36


of the U section


17


. The bolt element


118


is pre-stressed in its shown latched position by a spring member


130


only indicated in

FIG. 9

which is arranged between the U limbs


118




a


of the bolt element


118


.




A positioning element


120


can be displaced perpendicular to the U limbs


118




a


of the bolt element


118


via the locking unit of the lock, whereby it is guided in the apertures


37


of the section walls


36


of the U section


17


.




The U limbs


118




a


of the bolt element


18


are each provided at their free ends with extensions arranged at the side which form engaging sections


119




a.






A released state of the latching arrangement


118


,


120


is shown in

FIGS. 9 and 10

in which the extensions


119




a


of the bolt element


118


can be moved past the positioning element


120


or through recesses


120




a


of the positioning element


120


.




The bolt element


118


can thus be moved out of its latched position in the released state by pulling the hoop end


14


out of the force cell


16


against the resetting force of the spring member


130


.




The bolt element


118


is supported at the U section


17


in its latched position and thus secured in its latched position via the positioning element


120


by a displacement of the positioning element


120


via the locking unit and by a suitable actuating arrangement interposed between the locking unit and the positioning element


120


.





FIGS. 11 and 12

show a further embodiment of the invention in which the latching arrangement is made in one part and comprises a bolt element


218


which cooperates with the hoop end


14


at a side bent in accordance with the bolt reception of the hoop end


14


and which has an actuating arm


233


and a fork-like support arm


234


at its sides remote from the inserted hoop end


14


. The actuating arm


233


disposed between the fork arms of the support arms


234


is bent with respect to the support arm


234


such that a hook-like actuating section


226




a


of an actuating member


226


, which is perpendicularly adjustable relative to the inserted hoop end


14


via the locking unit of the lock, can pivot the bolt element


218


in a clockwise direction (with respect to

FIG. 11

) from its shown latched position into a released position via the actuating arm


233


.




Whereas the bolt element


218


is supported in the latched position via its support arm


234


at support sections


217




a


which bound apertures


37


in the section walls


36


of the U section


17


, the bolt element


218


can, in the released state which can be set by pivoting, be moved out of its latched position, past the support sections


217




a


and, with its support arm


234


, into a region of the apertures


37


adjacent to the support section


217




a.






The bolt element


218


is secured in the latched position via its support arm


234


in the latched state by a securing section


226




b


of the actuating member


226


.




The pivot movement of the bolt element


218


from the latched position into the released position can take place against the resetting force of a spring member. Furthermore, a spring member can be provided which pretensions the bolt element


218


into engagement with the hoop end


14


and against whose resetting force the bolt element


218


can be moved out of the latched position into the unlatched position by pulling the hoop end


14


out of the force cell


16


.




A slope


226




c


of the actuating member


226


bounding the securing section


226




b


ensures that the bolt element


218


is reliably moved out of the unlatched position back into the latched position via its support arm


234


when the actuating member


226


is adjusted in the direction of the hoop end


14


via the locking unit.




Reference Numeral List






10


lock body






12


hoop






14


hoop end






15


bolt receiver






16


force cell






17


,


117


,


217


U section






217




a


support section






18


,


118


,


218


bolt element






118




a


U limb






119




a


engaging section






20


,


120


positioning element






120




a


recess






22


locking unit






23


lock cylinder






24


reception housing






25


projection






26


,


226


actuating member, linkage






226




a


actuating section






226




b


securing section






226




c


oblique surface






27


recess






28


housing of the lock body






30


,


130


spring member






31


holding member






32


carrier






33


,


233


actuating arm






34


,


234


support arm






34




a


support surface






34




b


bearing surface






35


U base






36


,


136


,


236


section wall






36




a


recess






37


,


137


,


237


aperture






37




a


reception region






37




b


support region






37




c


abutment surface






50


actuating member






52


actuating pin






53


guide aperture






54


damping element






55


lug




S pivot axis of the positioning element




R center axis of the bolt element




I inner side of the lock body



Claims
  • 1. A hoop lock comprising:a lock body (10) and a hoop (12) which can be coupled at its hoop ends (14) and which can be latched thereto in a coupled state, wherein two force cells (16) being spatially separated from one another are arranged in the lock body (10) for the reception of the hoop ends (14) and each force cell (16) is associated with a latching arrangement (18, 20; 118, 120; 218) for a hoop end (14) which is adjustable between a latched state and a released state and which can be actuate via a locking unit (22), and wherein at least one latching arrangement has a bolt element (18; 118; 218) that is separate from said at least one latching arrangement, said bolt element being movably held at the force cell wherein the force cell is spatially separated from the locking unit, said bolt element being operative to be actuated by an actuating member extending between the locking unit and the latching arrangement, aid bolt element being supported at the force cell in the latched state on a side that is remote from the inserted hoop end (14) and that faces in the release direction, and wherein at least one force cell has a U section whose open side faces the other force cell, and wherein the inserted hoop end is supported at a U base of the U section and the bolt element is supported at at least one U limb of the U section.
  • 2. A hoop lock in accordance with claim 1, characterized in that in at least one force cell (16), both the side of the inserted hoop end (14) remote from the bolt element (8; 118; 218) and the bolt element (18; 118; 218) are supported at said U section (17) of the force cell (16).
  • 3. A hoop lock in accordance with claim 1 characterized in that at least one for cell (16) has walls (36) formed as drill protection and/or blow protection, which at least partly bound a protected space for at least the hoop end (14) and the bolt element (18; 118; 218).
  • 4. A hoop lock in accordance with claim 1, characterized in that the locking unit (22) is arranged between the force cells (16), with the two force cell (16) being fastened at the locking unit (22), at a reception housing (24) for the being unit (22).
  • 5. A hoop lock in accordance with claim 1, characterized in that said actuating member (26, 226) extending between the locking unit (22) and the latching arrangement (18, 20; 118, 120; 218) is provided for the actuation of at least one latching arrangement (18, 20; 118, 120; 218) with a rotary movement of the locking unit (22) that causes an actuation movement of the actuating member (26; 226) substantially parallel to its longitudinal axis and substantially perpendicular to the axis of rotation of the locking unit (22).
  • 6. A hoop lock in accordance with claim 5, further characterized in that a positioning element (20; 120) is operative to be moved by the actuating member (26; 226) via an actuating pin (52) that extends perpendicular to the direction in which the actuating member moves.
  • 7. A hoop lock in accordance with claim 1, characterized in that the bolt element (18; 118; 218) has a convex curvature at least in a region cooperating with the inserted hoop end (14) and is formed as a cylinder or spherical section.
  • 8. A hoop lock in accordance with claim 1, characterized in that the bolt element (18; 118; 218) is operative to be moved out of a latched position in the released state by pulling the hoop end (14) out of the force cell (16).
  • 9. A hoop lock in accordance with claim 1, characterized in that the bolt element (18; 118; 218) is operative to be moved out of a latched position against a resetting force of a spring member (30; 130) arranged in or projecting into the force cell (16), with the resetting force being dimensioned such that the inserted hoop 12) is held at the lock body (10) secure against falling out.
  • 10. A hoop lock in accordance with claim 1, characterized in that the force cells (16) and the locking unit (22) are arranged inside a housing (28) of the lock body (10) which is made of metal and which is formed in a tube shape.
  • 11. A hoop lock in accordance with claim 1, characterized in that at least one latching arrangement (18, 20; 118; 120) is made in multiple parts and the bolt element (18; 118) is supported indirectly at the force cell (16) via a positioning element (20; 120) which can be actuated via the locking unit (22).
  • 12. A hoop lock in accordance with claim 11, characterized in that the bolt element (18) is formed in the shape of a roller or a ball.
  • 13. A hoop lock in accordance with claim 11 characterized in that the positioning element is formed as an actuating arm (33) and a pivoted lever (20) having a support arm (34).
  • 14. A hoop lock in accordance with claim 11, characterized in that the latching arrangement (18, 20) is made self-locking by a dead travel and/or a play of th positioning element (20).
  • 15. A hoop lock in accordance with claim 14, characterized in that the positioning element (20) is operative to be moved further beyond a maximum latched position which an be set with the locking unit (22), with the bolt element (18) being supported at the force cell (16) via the positioning element (20) in each additional position.
  • 16. A hoop lock in accordance with claim 14, characterized in that the positioning element (20) is operative to be brought into engagement with th bolt element (18) and operative to be clamped or wedged between the bolt element (18) and the force cell (16) by pivotal movement beyond a maximum latched position that can be set.
  • 17. A hoop lock in accordance with claim 11, characterized in that at least one force cell (16) is provided at opposite walls (36) with apertures (37) which each have a reception region (37a) for the bolt element (18) and a support region (37b) substantially opposite the reception region (37a) for the positioning element (20).
  • 18. A hoop lock in accordance with claim 11, characterized in that a spring tongue (30) operative to be deflected by movement of the bolt element (18) provided as a spring member for the bolt element (18) and is connected to a plate-s aped carrier arranged outside the force cell (16) adjoining an outer wall of the force cell (16).
  • 19. A hoop lock in accordance with claim 11, characterized in that the positioning element (20) is held in a support region (37b) by a holding member (1) arranged in or projecting into the force cell (16), with the holding member (31) being connected to a carrier (32) arranged outside the force cell (16).
  • 20. A hoop lock in accordance with claim 11, characterized in that the bolt element (118) is formed in an approximately U shape and whose open side faces the other force cell (16), with a spring member (130) for the bolt element (118) being arranged between its U limbs (118a).
  • 21. A hoop lock in accordance with claim 20, characterized in that the positioning element (120) can be adjusted, and displaced, in a plane extending approximately perpendicular to the U limbs (118a) of the bolt element (118).
  • 22. A hoop lock in accordance with claim 20, characterized in that at least one U limb (118a) blocked in the latched state by the positioning element (120) can be moved past the positioning element (120) in the released state or can be moved through a recess (120a) in the positioning element (120).
  • 23. A hoop lock in accordance with claim 1, characterized in that at least one latching arrangement is formed in one part as a bolt element (218) which both cooperates with the inserted hoop end (14) and can be actuated via the locking unit (22), which is directly supported at the force cell (16) and whose adjusting movement is a pivotal movement.
  • 24. A hoop lock in accordance with claim 23, characterized in that the bolt element (218) is blocked by at least one support section (217a) of the force cell (16) in the latched state and can be moved past the support section (217a) in the released state.
  • 25. A hoop lock in accordance with claim 23 characterized in that the bolt element (218) has, at its side remote from the inserted hoop end (14), an actuating arm (233) and a support arm (234) which is of fork shape and which cooperates with opposite support sections (217a) of the force cell (16), with the actuating arm (233) and the sup ort arm (234) forming an angle other than zero of less than 90°.
  • 26. A hoop lock comprising:a lock body; and a hoop having hoop ends, said hoop couples at said hoop ends to the lock body and latches thereto in a coupled state wherein two force cells being spatially separated from one another are arranged in the lock body for the insertion of the hoop ends and each force cell is associated with a latching arrangement for one of each hoop ends, said latching arrangement being adjustable between a latched state and a released state and operative to be actuated via a locking unit, and wherein at least one latching arrangement communicates with a bolt element that is separate from said at least one latching arrangement, said bolt element being movably held at the force cell wherein the force cell is spatially separated from the locking unit, said at least one latching arrangement, includes with a pivoted lever that is operative to be actuated about an axis that is transverse to an insertion direction of the hoop ends when said latching arrangement is adjusted between said latched state and said released state, and wherein at least one force cell has a U section whose open side faces the other cell, and wherein the inserted hoop end is supported at a U base of said U section and the bolt element is supported by at least one U limb of said U section.
Priority Claims (1)
Number Date Country Kind
100 28 701 May 2000 DE
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4881387 Kortenbrede Nov 1989 A
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512 624 Nov 1930 DE
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