Information
-
Patent Grant
-
6301746
-
Patent Number
6,301,746
-
Date Filed
Friday, January 9, 199827 years ago
-
Date Issued
Tuesday, October 16, 200123 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Knight; Anthony
- Williams; Mark
Agents
-
CPC
-
US Classifications
Field of Search
US
- 016 115
- 016 1131
- 016 405
- 016 429
- 190 18 A
- 190 115
- 280 4737 R
-
International Classifications
-
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.
US Referenced Citations (13)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0187318 |
Jul 1986 |
EP |