Telescoping handle assembly for luggage and other luggable items

Information

  • Patent Grant
  • 6301746
  • Patent Number
    6,301,746
  • Date Filed
    Friday, January 9, 1998
    27 years ago
  • Date Issued
    Tuesday, October 16, 2001
    23 years ago
Abstract
A telescoping handle assembly for luggage or other luggable items. A telescoping handle assembly is provided that includes a primary handle and a secondary handle. The secondary handle provides at least one gripping surface that, when deployed, may extend in a direction generally parallel to a direction that a traveler may move when transporting an item attached to the secondary handle from one location to another.
Description




BACKGROUND




The present invention relates generally to luggage and, more particularly, to improved telescoping handle assemblies for use on luggage and other luggable items including, for example, suit cases, brief cases, instrument cases, document bags, garment bags and the like.




Over the last few years, substantial attention has been directed toward the development of wheeled luggage items. Such items generally comprise a container (or case) for enclosing one or more items of clothes, toiletries and the like, a wheel assembly and an extendable or telescoping handle assembly. The wheel assembly and extendable handle assembly are affixed to the container such that the container may be pulled fairly easily from one point to another, for example, through an airport. In addition, conventional handle assemblies generally include a pair of telescoping support members that have a cross-bar or handle provided between their distal extremities. When configured in an extended position, the cross-bar or handle may be grasped by a traveler and used to pull the luggage item from one place to another. A locking mechanism is also generally provided such that the telescoping support members may be locked in either an extended or retracted position.




Some exemplary prior art travel bags having extendable handle assemblies are shown in U.S. Pat. No. 5,653,319, entitled “Retractable Handle for a Wheeled Travel Bag,” U.S. Pat. No. 3,513,952, entitled “Extendable Handle Structure,” U.S. Pat. No. 5,644,816, entitled “Extensible Drawbar Device of a Truck,” U.S. Pat. No. 5,075,925, entitled “Retractable Handle Assembly for Transportable Case,” U.S. Pat. No. 5,581,846, entitled “Controlling Handle Structure for Pull Rods of a Luggage,” U.S. Pat. No. 5,630,488, entitled “Retractable Handle Positioning Structure for Luggage,” and U.S. Pat. No. 5,636,410, entitled “Retractable Handle Assembly for a Suitcase.”




The extendable handle assemblies illustrated and described in the above-listed patents and, indeed, all prior art handle assemblies known to applicant employ or utilize a handle assembly that requires a traveler to twist his or her hand roughly 90 degrees from a relaxed position when pulling a garment bag (or other luggable item) attached to the handle assembly. Such a configuration not only limits the leverage that is available to a traveler when transporting the garment bag but also may cause the traveler to suffer substantial muscle fatigue and discomfort in the wrist and forearm areas. Such a configuration also limits the lateral clearance that is available to a traveler when transporting the garment bag from one position to another.




Accordingly, it is believed that an improved handle assembly that allows a traveler to pull a garment bag or other luggable item using a more relaxed hand position would be quite useful. It is also believed that a handle assembly that provides multiple gripping surfaces and multiple carrying configurations would be quite useful. Finally, it is believed that a handle assembly that allows a traveler to achieve increased lateral clearance when pulling a garment bag (or other luggable item) from one location to another would be quite useful.




SUMMARY OF THE INVENTION




The present invention is directed to an improved extendable handle assembly for use on luggage and other luggable items.




In one particularly innovative aspect, an extendable or telescoping handle assembly in accordance with the present invention may allow a traveler to pull a garment bag (or other item) with minimal wrist and/or forearm twisting. Moreover, in one preferred embodiment an extendable handle assembly in accordance with the present invention may include a first or primary gripping surface that lies in a plane defined by a back surface of the garment bag and a secondary gripping surface. The secondary gripping surface is preferably moveable from a first, stored position to a second, extended position such that, when configured in the second position, the secondary gripping surface extends in a direction generally parallel to a direction that a traveler may move when transporting the garment bag from one location to another. Thus, it will be seen that, by using a telescoping handle assembly in accordance with the present invention, it is possible to greatly reduce traveler wrist and forearm discomfort and to maximize the leverage available to a traveler when the traveler must transport an item attached to the handle assembly from one location to another. It will also be seen that a telescoping handle assembly in accordance with the present invention may be “pushed” more easily, and may be more easily controlled when being pushed in a given direction, because of the added leverage and improved biomechanic s that are achieved through the use of such a handle assembly.




In another innovative aspect, the present invention is directed toward an extendable handle assembly that includes a generally U-shaped secondary handle. The generally U-shaped secondary handle is rotatably attached to a pair of telescoping support members such that, when the support members are extended, the secondary handle may be rotated from a stored position and latched in at least one deployed position. Preferably, when in the deployed position, at least one gripping section of the generally U-shaped secondary handle will conform to a natural pulling position of the hand and wrist of a traveler. For example, the generally U-shaped secondary handle may include a pair of gripping sections that may be rotated to extend within a vertical plane that is parallel to a direction that the traveler may be moving when transporting a luggable item attached to the handle assembly from one location to another. Further, when one of the gripping sections is grasped by a traveler and the item is properly positioned for toting or carrying, it is preferred that the gripping sections will lie in a substantially horizontal plane. Thus, it will be appreciated that, when the generally U-shaped secondary handle is deployed, it not only allows a traveler to transport the luggable item with reduced wrist and forearm discomfort but also provides the traveler with more leverage and improved biomechanics for maneuvering the item. The use of the generally U-shaped secondary handle also provides the traveler with additional lateral clearance from an associated luggable item and supports either right or left handed use.




In additional preferred embodiments, the generally U-shaped handle may be designed to lock in a plurality of deployed positions such that different carrying configurations may be achieved for different travelers. For example, the generally U-shaped handle may be configured to lock in a first plane forming a 45 degree angle with a back plane of the item and also within a second plane coextensive with the back plane to provide additional handle extension for taller travelers.




In still other embodiments, the secondary handle may take a form other than a U-shaped form. For example, the handle may take the form of a “tiller” extension or hinged handle assembly. The secondary handle may also comprise a section of a hinged telescoping tube.




In a second particularly innovative aspect, the present invention is directed to an extendable handle assembly that enables one-handed control of both a primary handle extension function and a secondary handle rotation or deployment function.




Accordingly, it is an object of the present invention to provide an improved extendable handle assembly for use on luggage and other luggable items.




It is another object of the present invention to provide a luggage item with an extendable handle assembly having an improved ergonomic design.




It is still another object of the present invention to provide a telescoping handle assembly the includes a generally U-shaped handle that may be rotated from a stored position and releasably fixed within one or more deployed positions.




It is still another object of the present invention to provide a telescoping handle assembly for use on luggage and other luggable items that includes a rotating handle and a locking mechanism that allows for one-handed control of both a handle extension function and a handle rotation function.




It is still another object of the present invention to provide a telescoping handle assembly for use on luggage and other luggable items that allows a traveler to pull an item attached to the handle assembly with reduced wrist and forearm fatigue and/or discomfort.




It is still another object of the present invention to provide a telescoping handle assembly that includes a primary handle and a deployable secondary handle, wherein the secondary handle may be used to provide a traveler with additional leverage and lateral clearance when an item attached to the handle assembly is toted from one location to another.




Other objects and features of the present invention will become apparent from consideration of the following description taken in conjunction with the accompanying drawings











BRIER DESCRIPTION OF THE DRAWINGS





FIG. 1

is an illustration of a typical prior art retractable handle assembly for a luggage item.





FIG. 2

is an illustration of an extendable handle assembly including a primary and secondary handle for a luggage item or other luggable item in accordance with a preferred form of the present invention.




FIGS.


3


(


a


)-


3


(


c


) provide illustrations of additional secondary handle configurations in accordance with the present invention.




FIG.


4


(


a


) is an exploded view of the telescoping handle assembly shown in FIG.


2


.




FIG.


4


(


b


) is a cross-sectional view of the extendable handle assembly shown in FIG.


2


.




FIG.


4


(


c


) is a cross-sectional view of a front handle section of the handle assembly shown in FIG.


2


.




FIG.


4


(


d


) is a cross-sectional view of a back handle section of the handle assembly shown in FIG.


2


.




FIG.


5


(


a


) is a first illustration of a lower actuator member and plunger assembly in accordance with a preferred form of the present invention.




FIG.


5


(


b


) is a cross-sectional illustration along line A—A of the lower actuator member and plunger assembly illustrated in FIG.


5


(


a


).




FIG.


5


(


c


) is a second illustration of the lower actuator member and plunger assembly illustrated in FIG.


5


(


a


).











DESCRIPTION OF PREFERRED EMBODIMENTS




In an effort to highlight various embodiments and innovative aspects of the present invention, a number of sub-headings are provided in the following discussion. In addition, where a given structure appears in several drawings, that structure is labeled using the same reference numeral in each drawing.




Prior Art Handle Assemblies




Turning now to the drawings, as shown in

FIG. 1

, typical prior art telescoping handle assemblies


2


for use on luggage and other luggable items generally include a pair of telescoping support members


4


having a handle


6


mounted between their distal extremities


8


. It will be appreciated that the handle


6


of such handle assemblies


2


has a central axis


10


that is fixed in an orthogonal relationship to the direction that a bag


12


attached to the handle assembly is designed to be pulled (or pushed) in. For this reason, prior art telescoping handle assemblies often subject travelers to unnecessary wrist and forearm fatigue and, in some instances, pain. Prior art telescoping handle assemblies, by their design, also limit the leverage that is available to a traveler when transporting a bag (or other item) attached to the handle assemblies from one location to another. This is particularly noticeable when attempts are made to push prior art bags from one location to another.




Handle Assemblies in Accordance with the Present Invention




Turning now to

FIG. 2

, a telescoping handle assembly


20


in accordance with the present invention overcomes many of the deficiencies inherent in prior art systems. For example, in one preferred form, a telescoping handle assembly


20


in accordance with the present invention may comprise a primary handle


22


and a secondary handle


24


mounted between a pair of telescoping support members


26


. The primary handle


22


and secondary handle


24


preferably comprise a unitary structure that is rotatably mounted to (or between) the distal ends


28




a


and


28




b


of the support members


26


. In addition, the secondary handle


24


preferably has a generally U-shaped structure and may be selectively rotated from a stored position P


0


to at least two deployed positions P


1


and P


2


. When configured in the stored position P


0


, the secondary handle


24


preferably fits between the telescoping support members


26


, such that the secondary handle


24


may be stored in a concealed housing when the support members


26


are retracted. When configured in the first deployed position P


1


, the secondary handle


24


preferably lies within a plane that forms approximately a 45° angle with a plane within which the support members


26


reside. However, in alternative embodiments, the angle formed may vary by+/−30° or more. It will be noted that the plane of the support members


26


is parallel to a back plane (not shown) of a container portion


30


of the luggable item


10


. Further, when configured in the second deployed position P


2


, the secondary handle


24


preferably lies within the plane of the support members


26


and extends from the distal ends


28




a


and


28




b


of the telescoping support members


26


. Finally, it is presently preferred that the secondary handle


24


comprise a generally U-shaped form providing a plurality of gripping areas


32


,


33


and


34


that may be grasped by a traveler.




Thus, it will be appreciated that a telescoping handle assembly


20


in accordance with the present invention provides gripping surfaces


32


and


34


that, when the secondary handle


24


is configured in the first deployed position P


1


, extend within planes generally parallel to a direction that a traveler may move when transporting a luggable item attached to the handle assembly


20


from one location to another. Further, when an attached bag or luggable item


10


is properly positioned for toting, it is preferred that the gripping surfaces


32


and


34


lie within a horizontal plane (not shown). This allows a traveler, when transporting an attached bag or luggable item


10


, to grasp either of the gripping surfaces


32


or


34


without having to twist his or her wrist substantially away from a relaxed position. It follows that, when transporting a bag or luggable item


10


in accordance with the present invention, a traveler is less likely to experience wrist and forearm fatigue and/or pain. Similarly, it will be appreciated that because the gripping areas


32


and


34


may be grasped with minimal twisting of a traveler's wrist, the traveler is provided with increased leverage due to improved body mechanics when utilizing a handle assembly


20


in accordance with the present invention. Further, because the gripping surfaces


32


and


34


are offset from the center line (not shown) of a bag or luggable item


10


attached to the handle assembly


20


, the use of such a handle assembly will provide the traveler with additional lateral clearance when transporting the bag or luggable item


10


from one place to another. Those skilled in the art will appreciate that the increased leverage provided by a handle assembly


20


in accordance with the present invention is particularly useful when an attached bag or luggable item


10


is pushed from one location to another.




Those skilled in the art will appreciate that the generally U-shaped secondary handle


24


illustrated in

FIG. 2

is but one example of how a secondary handle


24


may be configured in accordance with the present invention. Moreover, while the generally U-shaped secondary handle


24


illustrated in

FIG. 2

provides a presently preferred configuration, several alternative embodiments would be considered to be equivalent and are described below. For example, the secondary handle


24


may take the form of a “tiller” extension, such as that shown in FIG.


3


(


a


), the secondary handle


24


may take the form of a hinged structure, such as that shown in FIG.


3


(


b


), or the secondary handle


24


may comprise a section of a hinged support member


26


, as shown in FIG.


3


(


c


). While none of these structures is presently preferred, it will be appreciated that each provides at least one gripping surface


35


that may be configured to extend within a plane (not shown) generally perpendicular to the plane (not shown) of an associated primary handle


22


. Stated somewhat differently, the embodiments of FIGS.


3


(


a


)-


3


(


c


) illustrate how alternative handle assemblies may be constructed in accordance with the present invention to provide improved ergonomics for a traveler and to provide a deployable secondary handle for use on luggage and other luggable items.




As further shown in

FIG. 2

, a luggable item


10


in accordance with the present invention may comprise a container


40


, a wheel assembly


42


coupled to the container, and a telescoping handle assembly


20


such as that described above.




Turning now to FIGS.


4


(


a


)-(


d


), the generally U-shaped secondary handle


24


is preferably implemented as follows. A control bar


50


having a plurality tabs


52


that extend outwardly from an exterior surface


51


thereof is slideably mounted within a handle bridge assembly


54


, and an outer handle assembly


56


is rotatably mounted over the handle bridge assembly


54


. The handle bridge assembly


54


preferably comprises an inner handle bridge


54




a


and an outer handle bridge


54




b


, and the outer handle assembly preferably comprises an outer handle


56




a


and an inner handle


56




b


. The handle bridge assembly


54


and outer handle assembly


56


are held together by conventional means, for example, through the use of screws or glue (not shown). The handle bridge assembly


54


has a wall


58


wherein a plurality of apertures


60


are formed. The apertures


60


are configured such that the tabs


52


of the control bar


50


may pass therethrough and slide laterally therein. The outer handle assembly


56


has an inner wall


62


wherein a plurality of axial channels


64


and radial channels


66


are formed. The tabs


52


of the control bar


50


slide within and selectively engage the walls of the axial and radial channels


64


and


66


, such that the outer handle assembly


58


may be selectively fixed within a plurality of positions P


0


-P


2


(shown in FIG.


2


). For example, when the control bar


50


is placed in a “locked” position, the tabs


52


engage the walls of the axial channels


64


, and the outer handle assembly


56


is prevented from rotating about the handle bridge assembly


54


. However, when one end of the control bar


50


is depressed, causing the control bar to slide laterally, the tabs


52


are pushed into the radial channels


66


, and the outer handle assembly


56


is allowed to rotate about the handle bridge assembly


54


.




The control bar


50


also functions to control the telescoping action of the support members


26


. A plurality of ramp surfaces


70


are provided along an upper surface


72


of the control bar


50


, and the ramp surfaces


70


are used to drive a pair of actuator assemblies


74


provided within the telescoping support members


26


. Each of the actuator assemblies


74


preferably includes an upper actuator member


76


, a linking member


78


, a lower actuator member


80


, and a plunger assembly


82


. The upper actuator members


76


are linked or coupled to the lower actuator members


80


by the linking members


78


. Each of the upper actuator members


76


has a bearing surface


84


that is adapted to ride on a respective ramp surface


70


of the control bar


50


, such that when the control bar


50


is moved laterally from a “locked” position to a “released” position, the bearing surfaces


84


of each upper actuator member


76


will ride up on a respective ramp surface


70


of the control bar


50


causing the actuator assemblies


74


to move upward within the telescoping support members


26


. This action causes the bearing surfaces


86


of the lower actuator members


80


to engage respective spring members


88


of the plunger assemblies


82


and, in turn, causes the plungers


90


attached to the spring members


88


to be moved laterally out of holes


92


provided within an inward facing wall of an inner tube member


124


comprising the telescoping support


26


.




Views of the lower actuator member


80


and plunger assembly


82


are provided in FIGS.


5


(


a


)-


5


(


c


). As shown in FIGS.


5


(


a


)-


5


(


c


), the respective lower actuator members


80


and plunger assemblies


82


are constructed such that a lower extremity


96


of each lower actuator member


80


fits within and slideably engages an upper portion


98


of the plunger assembly


84


. More specifically, a cap section


100


of each plunger assembly


82


has a pair of recesses


102


formed therein. The recesses


102


are configured such that side walls


104


of the lower actuator member


80


may slide therein. In addition, the cap section


100


of each plunger assembly


82


includes a central protrusion comprising a spring mount


106


. The spring mount


106


of each cap section


100


opposes a spring mount


110


provided on a cross-bar


112


provided between the side walls


104


of the lower actuator member


80


, and a spring


114


is affixed at respective ends to the spring mounts


106


and


110


. Thus, when the control bar


50


is returned to its “locked” position, the springs


114


force the lower actuator members


80


in a downward direction allowing the bearing surfaces


86


of the lower actuator members


80


to disengage the spring members


88


of the plunger assemblies


82


, and allowing the plungers


90


to extend into holes


92


.




Those skilled in the art will appreciate, of course, that the upper, intermediate and lower actuator members


78


,


80


and


82


may comprise a single actuator member and that such a structure would clearly be equivalent to the multi-component actuator linkage described herein.




Turning again to FIGS.


4


(


a


) and


4


(


b


), in a preferred form, each telescoping support member


26


comprises an outer tube


120


, an intermediate tube


122


and an inner tube


124


. The lower end s


126


of the outer tubes


120


are affixed to the housing


128


of the wheel assembly


42


. The intermediate tubes


122


are designed to slide within the outer tubes


120


, and the inner tubes


124


are designed to slide within the intermediate tubes


122


. In a preferred form, the outer tubes


120


, intermediate tubes


122


and inner tubes


124


have a square cross-section. In addition, the outer tube preferably measures 0.750 inches on a side, the intermediate tube


122


measures 0.625 inches on a side, and the inner tube


124


measures 0.500 inches on a side.




The plunger assemblies


84


and actuator assemblies


74


are fixed within the inner tubes


124


, and upper and lower bushings


130


and


132


are affixed within the upper and lower ends


134


and


136


, respectively, of the intermediate tubes


122


. The lower bushings


132


of the intermediate tubes


122


are capped closed-ended and engage springs


138


provided in the lower ends


126


of the outer tubes


120


. The springs


138


force the intermediate tubes


122


and inner tubes


124


in an upward direction such that, when control bar


50


is moved laterally out of its “locked” position causing the plungers


90


of the plunger assemblies


84


to be withdrawn from holes


92


and into the inner tubes


124


, the intermediate and inner tubes


122


and


124


are forced upward. This provide a traveler additional hand clearance around the handle assembly


20


.




Each of the tubes


120


,


122


and


124


preferably has an inward facing wall


140




a


,


140




b


and


140




c


wherein at least one hole


92


is formed. The holes


92


are sized such that the plunger


90


of the plunger assemblies


84


may fit therein, locking the tubes


120


,


122


and


124


in a fixed position relative to one another until the plungers


90


are removed therefrom. In addition, the outer tubes


120


and intermediate tubes


122


have an outward-facing wall (not shown) wherein additional holes (not shown) are formed. These holes are designed to pass and engage a second plunger


150


mounted with the upper housing


152


.




Finally, it will be noted that the upper bushings


130


of the intermediate tubes


122


are designed to engage an outwardly extending edge


131


of the plunger assemblies


84


to prevent the plunger assemblies


84


(and inner tubes


124


) from passing completely out of the intermediate tubes


122


.




The telescoping function of the support members


26


may be described as follows. When the control bar


50


is moved laterally, the bearing surface


84


of each upper actuator member


76


rides up on a respective ramp surface


70


causing the actuator assemblies


74


to move in an upward direction. This causes the lower actuator members


80


to move in an upward direction and, in turn, causes bearing surfaces


86


of the lower actuator members


80


to engage spring members


88


. This causes plungers


90


to be moved out of holes


92


formed in the inward-facing walls of the outer, intermediate and inner tubes


120


,


122


and


124


. As plunger


90


is removed from holes


92


, springs


138


force the intermediate and inner tube members


122


and


124


upward. Control bar


50


is then allowed to return to its “locked” position, and the handle assembly


20


may then be pulled upward until the plungers


150


may engage holes


146


formed within the outward-facing walls of the intermediate and outer tubes


122


and


124


, and until the plungers


90


engage one of holes


153


formed in the inward-facing wall of the intermediate tube


122


.




To return the telescoping members


26


to their retracted position, the control bar


50


is again moved laterally into its “released” position. This causes the actuator assemblies


74


to again move upward removing plungers


90


from holes


153




a-d


. This enables the inner tube


124


to slide within intermediate tube


122


. As inner tube


124


slides downward within intermediate tube


122


, ramp surfaces


154


provided on the plunger assemblies


84


will engage plungers


150


and force them outward of holes


146


enabling the intermediate tube


122


to slide within the outer tube


120


. The inner and intermediate tubes


124


and


122


may then move downward within the outer tubes


120


until the plungers


90


again engage holes


92


.




In view of the foregoing, it will be appreciated that, through the utilization of a control bar


50


in accordance with the present invention, one handed control of both the handle rotation (or deployment) function and the handle telescoping function is achieved.




While the invention is susceptible to various modifications and alternative forms, specific examples thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the invention is not to be limited to the particular forms or methods disclosed, but to the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the appended claims.



Claims
  • 1. A luggage item comprisinga container substantially in the shape of a rectangle including a back side and bottom surface, a wheel assembly mounted substantially at the interface of the back side and bottom surface of the container, and a telescoping handle assembly coupled to the container, the telescoping handle assembly including first and second telescoping posts extendible from the top surface of the container, and a cross member comprising a control bar coupled at and extending between the distal ends of the telescoping posts, the handle assembly further including a single unitary U-shaped handle coupled to and pivotal about the control bar to a storage position when the posts are collapsed within the container, and the U-shaped handle having substantially perpendicular first and second gripping surfaces for providing ergonomic gripping surfaces, and the U-shaped handle further being pivotal into any one of a plurality of selectable engageable fixed positions, to enable comfortable gripping by the hand of a user of the container for enabling the container to be moved via the wheel assembly.
  • 2. A luggage item as in claim 1 wherein the first gripping surface comprises a housing portion of the U-shaped handle rotatably mounted over the cross member, and the second gripping surface comprises a portion of the U-shaped handle perpendicular to the housing position.
  • 3. A luggage item as in claim 1 wherein the control bar can be moved laterally with respect to the posts to allow the U-shaped handle to be unlocked and moved into any one of the plurality of fixed pivotal positions.
  • 4. A luggage item as in claim 1 wherein the first gripping surface of the U-shaped handle comprises a housing portion rotatably mounted over the cross member, and the handle and cross member have cooperating members whereby lateral movement of the control bar locks and unlocks the U-shaped handle with respect to the control bar to allow the handle to be pivoted into any one of the plurality of selectable engageable fixed positions.
  • 5. A luggage item as in claim 4 wherein the first and second telescoping posts each comprise a plurality of telescoping tubes.
  • 6. A luggage item comprisinga container substantially in the shape of a rectangle including a back side and bottom surface, a wheel assembly mounted substantially at the interface of the back side and bottom surface of the container, and a telescoping handle assembly coupled to the container, the telescoping handle assembly including first and second telescoping posts each comprising a plurality of telescoping tubes extendible from an area substantially at the back side and top surface of the container, and a cross member comprising a control bar coupled at and extending between the distal ends of the telescoping posts, the handle assembly further including a single unitary U-shaped handle coupled to and pivotal about the control bar to a storage position when the posts are collapsed within the back side of the container, and the U-shaped handle having substantially perpendicular first and second gripping surfaces for providing ergonomic gripping surfaces, and the U-shaped handle further being pivotal into any one of a plurality of selectable engageable fixed positions, to enable comfortable gripping by the hand of a user of the container for enabling the container to be moved via the wheel assembly, and the first gripping surface of the U-shaped handle comprises a housing portion rotatably mounted over the cross member, and the second gripping surface comprises a potion of the U-shaped handle perpendicular to the housing portion, and the handle and cross member have cooperating members whereby lateral movement of the control bar locks and unlocks the U-shaped handle with respect to the control bar to allow the handle to be pivoted and locked into any one of the plurality of selectable engageable fixed positions.
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4118048 Spranger et al. Oct 1978
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Number Date Country
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