Multi-component lawn and garden handle

Abstract
A multi-component handle for use with an implement such that various handle sections can be connected together through various connectors in a multitude of different ways to obtain a handle configuration desired by the user for a particular application. As shown in the application, the grip portions of the handle may be configured in a plurality of positions allowing the handle to be used for a variety of different implements. Further, the handle includes a center section which may be added to conventional shaft handles to add variable grip portions in a simple and efficient manner.
Description




BACKGROUND OF THE INVENTION




1. Filed of the Invention




The present invention relates to a handle for use with an implement attached on one end thereof, and more particularly to an ergonomically-shaped handle for use with lawn and garden implements.




2. Description of the Related Art




Most lawn and garden implements use conventional, straight handles; i.e., an elongated, axial member. Straight handles waste energy. A user must exert a certain grip pressure on the handle to prevent the handle from sliding back and forth in the user's hands. If the handle is allowed to slide back and forth in the user's hands, friction, created at the hand/handle interface, causes blisters to form on the user's hands. To prevent blisters from occurring, the user must increase his or her grip pressure on the handle, resulting in greater stress on the joints and limbs. However, as increased force is applied to the implement, a greater force must be applied by the user to maintain proper contact with the handle and prevent movement of the user's hands along the handle. Thus, as the user's hands begin to tire, they begin to slide along the handle and damage to the user's hands starts to occur.




Various types of angled handles have been developed in an attempt to overcome these drawbacks. Angled handles try to take advantage of a user's body shape and position the arm, wrist, hand and torso in a more relaxed posture. However, these handles fail to take into account the different forces applied to the handle during use. The handle should be configured such that the user can grasp the handle and apply or transmit a force directly to the implement attached to the handle. Proper handle configuration prevents increased exertion by the user while allowing the user to grasp and maintain a secure hold on the handle.




SUMMARY OF THE INVENTION




Accordingly, the present invention is a handle having a unique configuration. The handle includes a plurality of hand holds or grip portions that transfer the force generated by the user to an implement attached to the handle. In general, the handle includes two portions; an elongated shaft portion and a handle portion. The handle portion includes at least one hand hold or grip portion positioned perpendicular or at a slight angle to a longitudinal axis or center line of the shaft portion.




In the preferred embodiment, the handle section includes three grip portions. Two of the grip portions extend perpendicular to the longitudinal axis of the shaft portion. The third grip portion extends outward at an angle from the longitudinal axis of the shaft portion. The third grip portion allows the user to position one hand at an angle to the longitudinal axis of the shaft portion while the other hand is positioned perpendicular to the longitudinal axis of the shaft portion. Grasping the handle in this position; i.e., placing the user's hands where indicated, enables the user to transmit increased energy to the implement while minimizing nonproductive or wasted energy in the form of friction or gripping force.




The handle may also include a straight portion or section forming an additional grip portion that coincides with or is parallel to the longitudinal axis of the shaft portion. Such a configuration provides a versatile handle for use with an assortment of different implements. Varying the position of the user's hands on the handle relative to the particular implement used helps to reduce the back and forth motion occurring during use and correspondingly reduces user fatigue and injury.




A further embodiment includes an adjustable pivot joint in the shaft portion. The pivot joint allows the shaft portion to be twisted, turned and repositioned to further conform the handle/implement combination to the configuration of the user rather than conforming the user to the handle/implement combination.




A handle according to the present invention reduces user fatigue and increases the force transferred through the handle to the implement. It should be appreciated that the handle distributes the forces occurring during use on the flats of the palm and fingers and directly to the muscles in the arm as opposed to the wrist and gripping muscles. The handle design reduces stress while applying more force to the implement. Finally, the handle configuration may take various shapes while still achieving the objects and goals of the invention as will be apparent from a review of the drawings and the detailed specification.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a handle according to the present invention shown in use with a rake implement attached thereto.





FIG. 2



a


is a top view of the handle of FIG.


1


.





FIG. 2



b


is a top view of the handle of

FIG. 1

with the user's front hand positioned on a front grip portion.





FIG. 3

is a side view of a handle of FIG.


1


.





FIG. 4



a


is a perspective view of the handle of

FIG. 1

rotated 90 degrees and used with a shovel implement attached thereto.





FIG. 4



b


is a partial top view of the handle of

FIG. 4



a.







FIG. 5

is a top view of the handle of

FIG. 1

including a plurality of pivot joints and a handle adjustment feature.





FIG. 6

is a side view of the embodiment of FIG.


5


.





FIGS. 7



a


-


7




c


illustrates several embodiments of a pivot joint used in connection with the utility handle of FIG.


5


.





FIG. 8

illustrates a locking assembly to prevent rotation of the handle about its longitudinal axis.





FIGS. 9



a


-


9




b


illustrate a means for folding the handle.





FIGS. 10



a


-


10




b


illustrate a second embodiment of a means for folding the handle.





FIG. 11

is a first alternative embodiment of the handle of

FIG. 1

including a telescopic shaft shown in plan view.





FIG. 12

is a second alternative embodiment of a handle according to the present invention shown in plan view.





FIG. 13

is a third alternative embodiment of a handle according to the present invention shown in a plan view.





FIG. 14

is a fourth alternative embodiment of a handle according to the present invention shown in plan view.





FIG. 15

is a fifth alternative embodiment of a handle according to the present invention shown in plan view.





FIGS. 16-18

are front views of a handle section according to the present invention.





FIGS. 19-27

illustrate several embodiments of implements that may be used in connection with the present invention.





FIGS. 28-30

illustrate various shaft sections for use with a handle according to the present invention.





FIGS. 31-33

illustrate various center sections for use with a handle according to the present invention.





FIGS. 34-36

show various upper sections for use with a handle according to the present invention.





FIGS. 37-41

and


43


-


44


show various embodiments of connectors for use in connecting the various sections to form a handle according to the present invention.





FIG. 42



a


-


42




d


shows several embodiments of a detachable hand grip for use with the present invention.





FIGS. 45



a


-


45




d


discloses several embodiments of a handle according to the present invention.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)




Turning now to the drawings, and more particularly to

FIGS. 1-4



b


, a handle


20


, according to one embodiment of the present invention, is shown. The handle


20


is typically used with an implement


28


attached to an implement end


25


of the handle


20


. As shown in the figures, a variety of implements


28


may be attached to the handle


20


for use in performing various tasks. For instance, in

FIG. 1

, the handle


20


is shown in one position with a rake implement. In

FIG. 4



a


, the handle is shown rotated 90 degrees from its position in FIG.


1


and used with a shovel.




Turning to

FIG. 3

, specific portions of the handle


20


will now be set forth in further detail. The handle


20


is a contiguous, one-piece member starting at an implement end


25


and terminating at an upper end


35


. The handle


20


includes a shaft portion


30


and a handle portion


32


. The handle portion


32


has a first longitudinal axis


33


. The shaft portion


30


is an elongated axial member having a second longitudinal axis or center line


31


. As shown in

FIG. 3

, the first longitudinal axis


33


is coincident with the second longitudinal axis


31


. However, as shown in

FIG. 6

, the respective axes may extend at an angle to one another. While disclosed herein as a tubular member, the handle


20


may be made with a variety of shapes and cross-sections, such as square or rectangular, or any shape having a resistance to torque or bending stress.




The handle portion


32


includes, as previously set forth, a plurality of grip portions


22


,


24


,


26


. Viewing the grip portions


22


,


24


,


26


separately, the rearward grip portion


26


is disposed at the upper end


35


of the handle


20


and the front grip portion


24


is closest to the shaft portion


30


. The middle grip portion


22


is positioned between the rear grip portion


26


and the front grip portion


24


. As illustrated in

FIG. 3

, the handle portion


32


is positioned generally along the first longitudinal axis


33


. The rear grip portion


26


extends transverse the first longitudinal axis


33


. The rear grip portion


26


also lies in the same reference plane as the first longitudinal axis


33


, the shaft portion


30


and the middle grip portion


22


. When used as shown in

FIG. 4



a


, the user


21


grasps the rear grip portion


26


with his left hand


37


and, moving forward along the handle portion


32


toward the implement end, positions his right hand


39


at the middle grip portion


22


.




Turning to

FIG. 2



b


, when using the handle


20


in connection with a rake implement


28


, such as shown in

FIG. 1

, the user can rotate the handle


20


such that the hand grip portions


22


,


26


are substantially vertical. See particularly

FIGS. 2



a


-


2




b


wherein the user


21


has an ergonomical handle


20


designed to directly apply pulling power to the implement


28


without having to increase the grip force of the user.

FIG. 2



b


illustrates a user


21


having his right hand


39


placed on the front grip portion


24


. Use of the front grip portion


24


allows the user


21


to apply a downward force on the handle


20


, while the force exerted by the user's


21


left hand


37


on the rear grip portion


26


to move the handle remains in line with the first longitudinal axis


33


. The user's left hand


37


remains perpendicular to the first longitudinal axis


33


and thus there is no back and forth motion of the left hand


37


along the rear grip portion


26


. Turning to

FIG. 4



a


, the handle


20


is shown in use with a shovel. The handle


20


is rotated 90 degrees such that the transverse axis of the middle and rear grip portions


22


,


26


are substantially horizontal. Thus, a single handle


20


can be repositioned and used with several implements


28


.




Returning to

FIG. 3

, the handle


20


is shown to include additional sections or portions. A connecting portion


41


is positioned between the respective middle and rear grip portions


22


,


26


. The connecting portion


41


has a longitudinal axis substantially parallel to or coinciding with the first longitudinal axis


33


. The handle


20


further includes a pair of offset portions


38


,


43


each having a longitudinal axis


45


,


47


parallel to that of the shaft portion


30


. The offset portions


43


,


38


are joined through angled or skewed portions


50


,


52


to the connecting portion


41


. It should be appreciated that use of the various grip portions


22


,


24


,


26


enables the user


21


to vary his or her hand positions on the handle


20


in the most ergonomical fashion.




Turning now to

FIGS. 5-6

, an alternate embodiment of the present invention is shown. Parts common to those of

FIG. 1

are given the same numerals and further explanation thereof is omitted. As shown in

FIG. 5

, the handle


20


includes a rotational connection


62


(see

FIG. 8

) which allows the shaft portion


30


to be rotated about an angle of 360 degrees depending upon a plurality of discreet adjustment points. As shown in

FIG. 8

, rotation of the shaft portion


30


with respect to the handle portion


32


is accomplished by providing an inner tube


64


on the shaft portion


30


and outer tube


66


on the handle portion


32


. The inner tube


64


is disposed in and rotates within the outer tube


66


of the handle portion


32


. A detent mechanism


68


includes pins


70


extending outward through ports


72


in the handle


32


and shaft portion


30


. The rotational connection


62


enables the shaft portion


30


to be rotated and locked in any one of a number of discreet positions.




Turning to

FIG. 6

, the handle


20


may also include an additional rotational connection


63


disposed in the connecting portion


41


. As used, the rotational connection


63


may be similar to rotational connection


62


. It should be appreciated that rotational connection


63


provides additional versatility in that the rear grip portion


26


may be rotated about an angle of 360 degrees independently of the front


24


and middle


22


grip portions. Also, the connecting portion


41


may extend telescopically to increase the axial distance between the rear grip portion


26


and the middle grip portion


22


.




The handle


20


also includes a plurality of pivot joints


60


allowing the implement end


25


of the shaft portion


30


to be positioned in a variety of positions. As shown in

FIG. 6

, the implement end


25


may be disposed below and still parallel to the longitudinal axis


33


of the handle


20


as shown in FIG.


5


. The pivot joints


60


are shown in greater detail in

FIGS. 7



a


-


7




c


. The pivot joints


60


are formed of two complementary surfaces


74


,


76


each attached to respective ends of the shaft portion


30


. The complementary surfaces


74


,


76


are interconnected with a threaded fastener


78


and wing nut


80


. Tightening the wing nut


80


on the fastener


78


causes the two complementary surfaces


74


,


76


to come together and mate in a fixed position whereby the shaft portion


30


can be secured in a variety of angular positions.

FIG. 7



a


shows a square-toothed complementary surface


82


;

FIG. 7



b


shows a v-toothed complementary surface


84


; and

FIG. 7



c


shows a pin and corresponding socket assembly


86


.




Turning now to

FIGS. 9



a


-


9




b


, a device


89


for folding the handle


20


into a compact package to reduce its storage size is shown. The shaft portion may be divided into sections


91


,


93


, and respective ends


92


,


94


of the sections


91


,


93


are coupled to a pivotal connection or link


96


via pins


98


. Both sections


91


,


93


may be folded about the link


96


. When the handle


20


is unfolded, the collar


90


is placed over the link


96


to lock the sections in place and prevent pivoting. The collar


90


is locked by a detent mechanism


100


, preferably a spring loaded plunger, that engages an opening


102


on the collar


90


to hold the collar


90


in place. To fold the handle


20


, the detent pin


100


is depressed and the collar


90


is slid or moved to one side of the link


96


to expose the link


96


and enabling the respective sections


91


,


93


to be folded to adjacent positions.




An additional means to fold the assembly is shown in

FIGS. 10



a


-


10




b


. As shown, a male locking nut or projection


106


and a female engagement opening


108


are respectively positioned on opposite sides of discreet sections


107


,


109


of the shaft portion


30


. The male locking projection


106


includes lugs


110


spaced from and forming a gap


112


with the shaft portion


30


. The lugs


110


correspond to shaped openings


114


on the female engagement opening


108


. The two may be slip-fit such that the openings


114


are placed over the lugs


110


at a 90 degree angle. When rotated 90 degrees, the lugs


110


engage the flat surfaces


111


of the handle to provide positive engagement. Similar to the previous embodiment, a collar


90


having a detent prong


116


is slid over the connection and engages a detent slot


117


to lock the handle


20


in the expanded or open position.




Turning now to

FIG. 11

, an additional embodiment of a handle


20


is shown. The handle


20


includes a telescopic or telescoping shaft portion


30




a


which allows the user to extend the overall length of the shaft portion


30


. A suitable means for locking the telescopic shaft portion


30


in place, such as spring loaded detent pins


117


, may be used. Pivot joints, as shown in

FIGS. 7



a


-


7




c


, may also be added to allow the implement


28


to be moved to any of several angular positions.




Turning now to

FIG. 12

, another alternative embodiment of the handle


20


is shown. As shown, the handle


20


includes two grip portions


120


,


122


extending substantially perpendicular or transverse the first longitudinal axis


33


. The handle


20


also includes two oblique grip portions


124


,


126


extending outward with respect to the first longitudinal axis


33


. The embodiment further illustrates the various configurations the handle


20


may take to provide the user


21


with a plurality of hand grip positions.





FIG. 13

shows a further embodiment of a handle


20


as a unitary tubular member piece formed to include at least two hand grip portions


130


,


132


perpendicular to the first longitudinal axis


33


. The handle


20


further includes at least one hand grip portion


134


disposed at an angle with respect to the first longitudinal axis


33


.





FIG. 14

is a further embodiment showing a handle


20


having four grip portions


140


,


142


,


144


,


146


. Three of the grip portions


140


,


142


,


144


are positioned substantially transverse the first longitudinal axis


33


and the fourth grip portion


146


is angled or skewed with respect to the first longitudinal axis


33


of the shaft portion


30


.




Turning now to

FIG. 15

, the utility handle


20


of

FIG. 15

is similar to that of

FIG. 11

except that the middle and rear grip portions


22


,


26


and front grip portion


24


are spaced from a single reference plane defined by the first longitudinal axis


33


. If, for example, the first longitudinal axis


33


lies in a plane extending perpendicular to the drawing; i.e.,

FIG. 11

illustrates a side view, then the handle portion


32


extends above and is positioned outside of the plane.




Thus, the disclosed ergonomic handle


20


for lawn, garden and home use provides a superior alternative to straight or slightly angled handles. The handle


20


of the present invention positions the user's


21


hands in a more vertical, horizontal or angular fashion to said handle while maintaining a comfortable hand position. When using a handle


20


according to the present invention, the cup or palm of the hand is in a more perpendicular direction to the center line of the forearm which allows a more natural position of the body; i.e., the wrist. Further, the handle reduces blisters caused by a sliding back and forth motion on the palm which occurs with straight or slightly angled conventional handles.




Finally, the handle of the above invention evenly distributes the forces onto the flats and forefingers of the hands, thus transferring it easily to the arm muscles to reduce stress on the wrists. Furthermore, the handle


20


requires less work to operate the implement


28


attached to the shaft portion


30


. It should be appreciated that various modifications, changes and other substitutions may be made while remaining within the scope of the instant invention.




Turning now to

FIGS. 16-18

, several embodiments of a handle configuration which may be used as a center section


200


of a handle are shown. These center sections


200


may be used as an add-on for modifying conventional handle configurations. For example, a standard handle configuration for a spade-type shovel might be a straight or longitudinally extending wood handle


190


. Using one of the embodiments shown in

FIGS. 16-18

, the conventional wood handle may be modified to include one of the center sections


200


shown and thus increase the versatility of the handle.




Modification of the standard longitudinal wood handle is accomplished by cutting the shaft into separate pieces. The pieces are pulled apart and the center section


200


is then inserted between them and attached at its respective ends to the wood handle to form the modified handle set forth above. Thus, conventional handles may be modified according to one embodiment of the invention.




Turning now to the specifics of the handles shown in

FIGS. 16-18

. For illustrative purposes, the handle


190


to which one of the center sections


200


is connected is a conventional straight wood handle. It is known to use other types of handles such as those having a different configurations other than a straight handle, such as a t-type handle. Further, the handle may be made of a variety of materials other than wood. Various embodiments of a center section


200


are illustrated in

FIGS. 16-18

, each center section


200


includes a first longitudinal section


202


, a first skewed section


204


extending outward from the longitudinal axis


206


, a transverse section


208


extending transverse or perpendicular the longitudinal axis


206


, a second skewed section


210


extending outward from the longitudinal axis


206


and a second longitudinal section


212


extending along the longitudinal axis


206


. The longitudinal axis


206


represents a longitudinal line extending coincident with and between the first longitudinal section


202


and the second longitudinal section


212


.




As shown in

FIG. 16

, the center section


200


may also include a first intermediate section


214


offset from and parallel the longitudinal axis


206


. The first intermediate section


214


connects the first skewed section


204


with the transverse section


208


. Additionally, a second intermediate section


216


, also offset from and parallel the longitudinal axis


206


, connects the transverse section


208


with the second skewed section


210


.




In use, the center section


200


is connected to the conventional handle


190


as set forth above by cutting the handle


190


in half and attaching the ends


220


of the halves


222


of the handle


190


to the first and second longitudinal sections


202


,


212


(see

FIG. 16



a


). The connections may be of any one of several types of connections which are disclosed later herein, including inserting the ends


220


into a socket


224


formed on the respective first and second longitudinal sections


202


,


212


. The halves


222


are then fastened into place with a rivet, screw, nail or some other type of fastener extending through an orifice


226


in both the socket


224


and the handle end


220


. Such a construction forms a one piece handle having a center section


200


disposed between two halves


222


of the wood handle


190


. While disclosed as cutting the handle


190


in halves


222


, the handle


190


may be cut at any position with the center section


200


placed between the two ends


220


produced by the cut.




The center section


200


provides a handle having a plurality of gripping portions; i.e., the skewed


204


,


210


and transverse


208


sections form grip portions. While these sections form the main grip portions, the handle is designed such that it may be gripped at any point along the handle. Which section forms a grip portion depends upon the particular use selected by the user. A detachable grip


228


(see

FIGS. 42



a


-


42




d


) may be placed over the respective sections; i.e., transverse


202


, skewed


204


,


210


or intermediate


214


,


216


. Additionally, the detachable grip


228


may be positioned anywhere on the handle as required by the user. Thus, the handle can be used in a variety of positions depending upon the particular use.




Turning briefly to

FIG. 17

, a center section


200


is shown having two first skewed sections


204


,


204




a


, two second skewed sections


210


,


210




a


, connected with the transverse section


208


via two first intermediate sections


214


,


214




a


and two second intermediate sections


216


,


216




a


. As set forth above, the function of such a central section


200


is to provide a plurality of gripping portions at the various sections.




Turning now to

FIGS. 19-45

, there is shown a component system


300


for forming a multi-part handle


302


and an implement


304


combination.

FIGS. 19-27

show various types of implements


304


that can be used with the multi-part handle


302


. The figures, while showing different implements


304


, are not meant to be exclusive, but are merely examples of the types of implements


304


that can be used with the multi-part handle


302


of the present invention. As disclosed further herein, the multi-part handle


302


is comprised of three parts or sections, a shaft section seen generally at


306


, a center section seen generally at


308


and an upper section seen generally at


310


. As used herein, “section” identifies any one of the three disclosed sections, the shaft section


306


, the center section


308


or the upper section


310


. The center section


308


may be of the design or type shown in

FIGS. 16-18

or it may comprise some other shape or configuration as shown herein. For example,

FIG. 32

shows a straight handle


312


having means at each end for connecting the center section


308


to the shaft section


306


and the upper section


310


. As set forth previously, the respective sections or components of the multi-part handle


302


may be connected in a variety of ways. Specific types or means for connecting the individual components or sections are shown in

FIGS. 37-41

and

FIGS. 43-44

. These are not exclusive as there are many other types of connectors


309


known in the art for connecting two parts or sections together.




It should be appreciated that the multi-part handle


302


allows a user to form a variety of different handle configurations. Depending upon the particular implement selected and the job to be accomplished, different parts or sections may be selected to assemble the multi-part handle


302


in a specific configuration based on the particular use and user to reduce the stress and fatigue resulting from use of conventional handles. Further, the multi-part handle


302


eliminates the necessity for several different handles when using various implements. This is truly a one-size fits all handle.




Returning to the specifics, the shaft section


306


may be formed of several different styles of shaft portions including a shaft


314


being bent or having two offset axes at both ends


320


,


322


(see FIG.


28


).

FIG. 29

shows a straight shaft


316


with a single longitudinal axis having opposite ends


324


,


326


adapted to receive a connector


309


therein.

FIG. 30

discloses a straight shaft


318


having a single longitudinal axis, formed with a means for adjustment thereon such that the shaft


318


may telescope or extend to increase or decrease the distance between the respective ends


328


,


330


. A similar arrangement is shown in FIG.


11


. Other types or designs of shaft sections


306


may be used depending upon the particular use or configuration desired by the user. The means for connecting the center section


308


, the shaft section


308


and the upper section


310


includes a variety of connectors


309


, examples of which are disclosed in

FIGS. 37-41

and

FIGS. 43-44

. The connectors


309


are various types of connecting links that are either fixed or removable which allow any two parts or sections to be connected to one another in an incremental fashion either axially, radially, rotationally, and in some cases, longitudinally. For instance, the fixed link


334


shown in

FIGS. 37-37



a


is a stationary link that simply joins the parts or sections together. The link


336


shown in

FIGS. 38

,


38




a


and


38




b


includes a pivot


337


enabling the sections to adjust both axially and rotationally. As shown, opposing sections


338


of the connecting link


336


contain a plurality of opposite serrated surfaces


340


which mate together and are held in position by a fastener


342


such as a screw or wing nut. Such an adjustable connector is also shown in

FIGS. 7



a


-


7




c


. The connecting link


336


also uses a plurality of spring loaded pins


344


which are inserted and received in apertures in the respective sections for rotational adjustment (see FIG.


8


).





FIGS. 39



a


-


39




e


disclose a double pivoting link


346


also having axial and rotational adjustability. The link


346


is similar to that shown in

FIGS. 9



a


-


9




b


. The link


346


provides a two fold function. First, it allows the component parts or sections to be connected, and folded into a compact storage position. Second, it allows the sections to be adjusted relative to one another. Similar to the pivotal link shown in

FIG. 38

, the link


346


uses opposing complementary mating surfaces


348


held together by fasteners


350


. As shown, an intermediate portion


352


is positioned between end portions


354


of the link


346


. As discussed above, the intermediate portion


352


and end portions


354


are pivotally connected through complementary surfaces


348


. The end portions


354


also include detent pins


356


that cooperate with apertures


360


on the ends


358


of the sections. The number of apertures


360


depends on the versatility desired. For instance, the more apertures


360


, the more the handle may be adjusted by rotating the respective sections relative to one another.

FIG. 39



a


shows a variation of link


346


that provides both the ability to fold adjacent parts or sections against each other and the ability to rotate the sections with respect to one another. An end portion


354


has a plurality of slots


362


cut therein. When the end portion


354


is slid inside the part or section, the slots


362


engage a pin


364


fixed on the section. As shown in

FIG. 39



a


, the end portion


354


can be rotated to a number of discreet positions to allow adjustability between adjacent sections. Again, detent pins


356


engage apertures


360


to hold the section on the link


346


.




Turning now to

FIG. 40

, a pivoting link


364


is shown. The link


364


includes a pin and slot connection similar to that disclosed above that allows rotatability of adjacent sections. A threaded collar


366


slides over the end portion


354


and engages threads


368


to keep the pin


370


and slots


372


in a mated relationship and prevent rotational movement between the respective sections.





FIGS. 41 and 41



a


show a connector


374


which may be used to connect a section to a wood shaft


190


. An annular member


376


having a plurality of inwardly deflectable fingers


378


each having an inwardly extending end projection


380


thereon is slid over the wood handle. A collar


382


slides over the top of the annular member


376


. As the collar


382


slides axially along the annular members


376


, it engages and drives the inwardly deflectable fingers


378


such that the end projections


380


engage and fasten the annular member


376


to the wood handle


190


. A detent pin


384


, which can be spring operated, extends through an aperture


386


and fixes the collar


382


on the annular member


376


. This link


374


may also include the pin


362


and slot


364


adjustment feature of

FIG. 39



a.







FIGS. 43 and 43



a


show a connector


390


which may be formed on the ends


392


of a particular section for joining adjacent sections. For instance, one section will have a male end


394


comprising a reduced neck section


396


having a plurality of slots


398


cut therein. A spring loaded detent pin


400


extends outwardly through an aperture


402


on the reduced neck section


396


. The reduced neck section


396


is received in a socket


404


on the adjacent section. The socket


404


has a fixed pin


406


extending therethrough which mates with the slots


398


on the reduced neck section


396


. The receiving end has a plurality of apertures


408


to receive the detent pin


400


depending upon the angular orientation or rotation between the two sections.





FIG. 44

shown a similar connection


410


using a threaded collar


412


and threaded member


414


to hold the two sections together. Thus, it should be appreciated that the various sections


306


,


308


,


310


may be held together by the connectors


309


shown herein. The connectors


309


typically are used to connect the shaft section


306


with the center section


308


and the center section


308


with the upper section


310


, but may also be used to connect the implement


304


to the shaft section


306


or, for that matter, any other section.




Turning to

FIGS. 42



a


-


42




d


, detachable hand grips


228


for use with the handle are shown. The hand grip


228


is releasably attached to the various sections at different positions depending upon the operator's proposed use.

FIG. 42



a


shows a detachable hand grip


228


using a hook


230


and loop


232


fastener to attach the grip to the handle;

FIG. 42



b


discloses a ratchet


234


and pawl


236


fastener assembly;

FIG. 42



c


shows a hand grip


228


split into halves


238


,


240


held together by threaded fasteners


242


; and

FIG. 42



d


shows a hand grip


228


split into two halves


244


,


246


, one section having deflectable fingers


248


that extend through an aperture


250


on a mating half


246


to hold the two halves together.




As discussed previously, the center section


308


may be formed as the center sections identified in

FIGS. 16-17

.

FIG. 32

discloses a center portion


200


having a single longitudinal axis


201


with the ends set up to receive the connectors


309


. As shown, the upper sections


310


including the handles shown in

FIGS. 34-36

, specifically, an offset l-shaped handle


420


, a t-shaped handle


422


and a straight handle


424


, are connected via the connectors


309


to the center section


308


. As shown, the upper sections


310


include a rear grip portion and a configuration similar to that shown on the shaft section


306


and the center section


308


that allows it to be adjusted relative to the center section


308


or shaft section


306


.





FIGS. 45



a


-


45




d


show the various uses of the present invention when embodied in a handle. Specifically,

FIG. 45



a


shows a continuous shaft handle having the shape or configuration like that of the center section


200


.

FIG. 45



b


shows an add-on center section


200


disposed between two wooden sections


190


of a straight handle shaft.

FIG. 45



c


shows a multi-part handle having the shaft


306


, center


308


and upper section


310


interconnected by connectors


309


.

FIG. 45



d


shows a multi-part handle with a pivotal link


336


allowing the shaft section


306


to be positioned in an angular relationship with respect to the center section


308


and upper section


310


of the multi-part handle.




It should be appreciated that the disclosed component style handle provides an apparatus in which the center portion can be used as an add-on to conventional type straight handles, the handle may be separated into numerous sections for storage, the sections can be connected by various fasteners allowing the respective adjacent sections to be repositioned with respect to one another. This provides a handle wherein the user can custom fit or modify the handle to provide a handle which evenly distributes the forces to reduce the stress on the user.




The invention has been described in an illustrative manner. It is to be understood that the terminology which has been used is intended to be in the nature of words of description rather than of limitation.




Many modifications and variations of the invention are possible in light of the above teachings. Therefore, within the scope of the appended claims, the invention may be practiced other than as specifically described.



Claims
  • 1. A handle for attachment to an implement comprising:a shaft section having one end thereof configured such that an implement may be attached thereto; a center section; a first connector connecting said shaft section to said center section; an upper section; a second connector connecting said center section to said upper section; and said center section includes a first skewed section, a transverse section and a second skewed section, said transverse section positioned between said first and second skewed sections.
  • 2. A handle as set forth in claim 1 wherein said upper section includes a grip portion.
  • 3. A handle for attachment to an existing implement handle comprising a first skewed section, a transverse section and a second skewed section interconnected such that said transverse section is positioned between said first and said second skewed sections; said implement handle including a first longitudinal section positioned adjacent and connected to said first skewed section, said first longitudinal section having one end thereof configured such that the existing implement handle may be attached thereto and a second longitudinal section positioned adjacent and connected to said second skewed section.
  • 4. A handle for attachment to an implement comprising:a shaft section having one end thereof configured such that the implement may be attached thereto; a center section including at least one skewed section and a transverse section and an upper section; a first connector disposed between and releasably securing said center section to said shaft section; and a second connector disposed between and releasably securing said upper section to said center section.
  • 5. A handle as set forth in claim 4 wherein said first connector includes a link having opposite ends, and a detent pin on each end thereof.
  • 6. A handle as set forth in claim 4 wherein said second connector includes a link having opposite ends, and a detent pin on each end thereof.
  • 7. A handle as set forth in claim 5 wherein said link includes a pivot, said pivot including a pair of complementary surfaces formed on said link.
  • 8. A handle as set forth in claim 6 wherein said link includes a pivot, said pivot including a pair of complementary surfaces formed on said link.
Parent Case Info

This is a continuation-in-part of application Ser. No. 08/774,949 filed on Dec. 27, 1996. Now U.S. Pat. No. 5,771,535.

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Non-Patent Literature Citations (1)
Entry
Copy of Brochure for “Easy-Lift Cane.”
Continuation in Parts (1)
Number Date Country
Parent 08/774949 Dec 1996 US
Child 09/106572 US