U.S. patent number 3,705,731 [Application Number 05/075,960] was granted by the patent office on 1972-12-12 for knock-down garment rack with selectively positionable wheels.
Invention is credited to James L. Berchak.
United States Patent |
3,705,731 |
Berchak |
December 12, 1972 |
KNOCK-DOWN GARMENT RACK WITH SELECTIVELY POSITIONABLE WHEELS
Abstract
A knock-down garment rack, which has a main frame member on
which are mounted wheels which wheels are selectively positionable
in an operative position and in a storage position.
Inventors: |
Berchak; James L. (Brookpark,
OH) |
Family
ID: |
22129021 |
Appl.
No.: |
05/075,960 |
Filed: |
September 28, 1970 |
Current U.S.
Class: |
280/651; 280/43;
280/79.11 |
Current CPC
Class: |
B62B
3/02 (20130101); B62B 2202/65 (20130101) |
Current International
Class: |
B62B
3/02 (20060101); B62b 011/00 () |
Field of
Search: |
;280/36R,36C,37,38,41R,41C,43,43.1,43.17,43.18,43.24,47.18,79.1,79.3,414R |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hersh; Benjamin
Assistant Examiner: Song; Robert R.
Claims
What is claimed is:
1. A knock-down garment rack comprising a planar open frame, a
garment support structure, means to removably support said garment
support structure on said frame in a plane substantially normal to
the plane of said frame, said frame including a plurality of
interconnected support members, at least two of said support
members being tubular and non-circular and extending parallel to
each other and laterally beyond the lateral extremities of other
members of the frame, a wheel mounting assembly operatively
associated with the lateral extensions of said non-circular tubular
support members, each wheel mounting assembly including a wheel
mounting member complimentarily in shape to said tubular support
member with which it is associated, each of said wheel mounting
members having a wheel mounted thereon, each of said wheels being
mounted on a swivel pin carried by the wheel mounting member
extending substantially normal to the axis of said wheel mounting
member, each wheel mounting member being mounted for telescoping
engagement with the lateral extension of said non-circular tubular
support member of said frame in a first position wherein said
swivel pin is substantially normal to the plane of the frame for
engagement of the wheels on a surface and a second position wherein
said swivel pin is substantially coplanar with the plane of the
frame to allow the wheel to swivel to a plane coplanar with the
plane of the frame, whereby the rack may be disassembled and the
frame arranged with the wheels coplanar with the support members to
provide minimum thickness configuration.
2. The invention as defined in claim 1 further characterized by
annular bushing means carried by one of said members and
cylindrical sleeve means carried by the other of said members and
slidably disposed in said bushing means, thereby mounting said
mounting member for axial and rotational movement.
3. The invention as defined in claim 2 wherein the sleeve member
extends axially a substantial distance beyond the end of the
bushing means.
4. The invention as defined in claim 3 further characterized by
biasing means normally urging said mounting member into engagement
with support member, and said members including coacting stop
means.
5. The invention as defined in claim 1 wherein biasing means
interconnects the two mounting members on the support member.
Description
BACKGROUND OF THE INVENTION
This invention relates generally to knock-down garment racks, and
more particularly to knock-down garment racks having selectively
positionable wheels so that the wheels may be folded to provide a
compact storage configuration of the rack.
In the garment sales trade the use of rolling garment racks is
common practice for transporting and displaying samples. Normally a
garment salesman will have a large number of samples which he
carries on the rack, and these samples will be grouped in various
groupings, each of which groups is protected by some kind of bag.
These bags not only afford protection to the garments from the
elements, but they also provide a convenient bundle size for the
salesman to handle.
In addition to having to move the samples by means of the rack from
store to store, it is also necessary in most cases for the salesman
to be able to transport the samples and the racks in his
automobile. Since the samples present enticing targets for would-be
theives, it is undesirable to store these samples in the back seat
of a car. Therefore, garment salesmen prefer to store their samples
in the trunk.
Also, the garment racks must be stored, which the salesmen prefer
to also store in the trunk so that it does not alert theives to the
fact that the car has valuable merchandise in it. For this reason,
it has been customary to supply knock-down racks which can be
stored together with the garments in their bags in the trunk of a
car. These knock-down racks must be able to be facilely
disassembled for storage in a car and also must be able to be
easily reassembled for reception of the garments.
In normal usage when the garments are being stored in the trunk of
a car, the bags of garments are first taken off the rack and placed
in the trunk, after which the rack is knocked down and placed on
top of the garments. The reverse of this procedure is then followed
in removing the rack and garments, the rack being removed first and
reassembled and then the garments placed thereon.
Because many salesmen carry a large number of garments it is
necessary that the racks fold to a minimum size and space so as to
be able to be placed within the trunk without damage to the car.
This is especially important since the rack is normally the last
item placed in, as explained above, and is not soft and conformable
like the garments, but rather is relatively rigid. If the rack is
not fully contained within the trunk, it will tend to spring the
trunk or damage the trunk surface. Thus, even reducing the height
in the knocked-down condition by a few inches is important in this
type of structure.
While it is relatively easy to provide a low profile in the
knocked-down condition of the main support frame by removing the
top frame, such is not the case with respect to the wheels on which
the frame rolls. In the case of wheels it is desirable to have as
large a wheel as is reasonably possible, since the larger the
wheel, the more easily the rack will roll over minor obstructions.
However, the large sized wheel (for instance, a five-inch wheel)
takes up an appreciable amount of room, even in the knocked-down
position, and with the necessary mounting hardware can add several
inches in the height profile of the base support member of the
garment rack.
SUMMARY OF THE INVENTION
According to the present invention a knock-down garment rack is
provided with wheels which are selectively positionable between an
operative position wherein they are disposed to rollingly engage
the ground, and a storage position, wherein they are moved to a
position with respect to the remainder of the support frame to
provide a minimum profile height.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a garment rack in the assembled
position incorporating the positionable wheels of the present
invention;
FIG. 2 is the garment rack of FIG. 1 in the knocked down position,
with the wheels moved to the storage position;
FIG. 3 is a detail sectional view of one of the wheels and the
mounting thereof on the frame;
FIG. 4 is a sectional view taken substantially along the plane
designated by the line 4--4 of FIG. 3;
FIG. 5 is a sectional view taken substantially along the plane
designated by the line 5--5 of FIG. 3;
FIGS. 6, 7, and 8 are longitudinal sectional views similar to FIG.
3 showing sequentially the steps of moving the wheel from the
operative to the storage position.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, and for the present to FIG. 1, a
knock-down garment rack incorporating positionable wheels according
to this invention are shown. The garment rack includes a main frame
designated generally as 10 formed of a pair of transversally
extending support members 12 and three longitudinally extending
ribs 14. Centrally located on each of the support members 12 is an
upwardly extending annular collar 16. The collars 16 are disposed
to removably support an overhead rack structure designated
generally as 18. The rack structure is shown in place in FIG. 1 and
is removed in FIG. 2.
At the opposite ends of each of the support members 12 is a wheel
structure designated generally as 20. The wheel structures are
shown in the operative position in FIG. 1 and are shown rotated to
the storage position in FIG. 2. As can be seen comparing FIGS. 1
and 2 the wheels take up an appreciably less vertical distance in
FIG. 2 than in FIG. 1, and in fact when the wheel is swivelled to
its flat position as is shown in the front left wheel position of
FIG. 2, the wheel structure is actually no thicker than the
remainder of the main frame 10. Thus the wheels, according to this
invention, can be moved to provide a very flat compact
configuration for storage of the garment rack in the trunk of a car
in the knocked-down position.
The structure which permits the movement of the wheels to this
compact storage position is shown in detail in FIGS. 3 through 8
with respect to one support member and one wheel structure. It is
to be understood that the other support member and wheel structures
are similarly formed and mounted.
Referring now to FIGS. 3 through 5, the support member 12 is formed
as a square, hollow tubular structure and has disposed near the end
thereof an annular bushing 22. This end structure of the support
member 12 is disposed to receive the wheel structure 20.
The wheel structure 20 includes a square hollow tubular section 24,
which is adapted in size and shape to slidably fit telescopingly
over the end of the support member 12. This square tubular section
acts as a mounting member of the wheel structure 20. Disposed
within the tubular section 24 is an annular sleeve 26 which has one
end thereof projecting outwardly from the tubular section 24 and
which is configured and shaped to slidably fit into the bushing 22.
The sleeve 26 terminates within the tubular section 24 at an
annular shoulder 28 which is positioned to abut against the end of
the support member 12, thus coacting therewith to form stop means
to limit the sliding movement of the tubular section 24 on the
support member 12.
The tubular section 24 mounts a wheel assembly 30. The wheel
assembly 30 includes a swivel pin 32, extending through the tubular
section 24, and held thereon by means of a nut 34 threadably
engaged on the end of the pin 32. A wheel 36 is swivelly mounted on
the swivel pin 32.
A biasing spring 38 is disposed within the support member 12 and at
one end thereof has a hook 40 which engages the swivel pin 32. The
opposite end of the biasing spring 38 is provided with a similar
hook which similarly engages the swivel pin of the wheel at the
opposite end of the support member 12.
In order to prevent damage to walls and other objects during the
use of the garment rack the ends of each of the tubular sections 24
are provided with rubber bumpers 42 held thereon by means of screws
44 engaging flanges 46 within the tubular sections 24.
The operation of the wheel structures and support members for
movement between the operative and the storage position is shown
sequentially in FIGS. 3 and 6 through 8. In FIG. 3 the wheel
structure is shown in the operative position with the square
tubular section 24 telescoped over the end of the support member
12, so that the wheel 36 depends downwardly for engaging the
ground, this position being that shown in FIG. 1. In order to
retract the wheel, the wheel structure 20 is grasped and moved
axially to the right against the bias of the biasing spring 38 to
the position shown in FIG. 6 wherein the square tubular section 24
has been fully removed from its telescoping engagement with the end
of the support member 12, but with the sleeve 26 still engaging the
bushing 22. The entire structure 20 is then rotated 90.degree. to
the position shown in FIG. 7 and the square tubular section 24 is
then allowed to return and telescope over the end of the support
member 12 under the urging of the bias of the biasing spring 38, to
the fully retracted to the position shown in FIG. 8 wherein the end
of the support member 12 engages against the shoulder 28 at the end
of the sleeve 26. This is the position of the wheels shown in FIG.
2 and the wheel 36 can be swivelled on the swivel pin 32 to the
flat configuration shown in the one wheel in FIG. 2 and shown in
phantom in FIG. 8. This actually places the entire wheel structure
coincidal with the frame; i.e., the wheel structure is no thicker
than the thickness of the frame.
Thus it can be seen that according to the present invention a
relatively simple structure is provided wherein a secure wheel
mounting is provided to allow the garment rack to be wheeled during
normal use with the device being adapted to use as large a wheel as
feasible to provide the necessary rolling ability and yet which
wheel structure can be folded to an extremely compact form for
storage of the garment rack.
Another feature of the mounting structure of the present invention
is that this structure resists accidental release of the wheel
structure from the operative position when an obstacle is
encountered. This resistance to accidental release is a result of a
bushing and sleeve configuration for the interconnection between
the wheel structure 20 and the support member 12. When an
obstruction is encountered and force is exerted both axially and
twisting with respect to the wheel structure. The axial component
tends to push the wheel structure out of the position shown in FIG.
6 against the bias of the spring 38. However, the twisting
component causes a binding to occur between the bushing 22 and the
sleeve 26 which resists movement in the axial direction even though
there is an axial component of the force. Further, even if there is
a loose or sloppy fit between the sleeve 26 and the bushing 22
there will still be a binding action when there is a twisting
component of force, such binding action occurring between the
sleeve 26 and the interior of the support member 12. Thus while it
is relatively easy to move the wheels from the operative to the
storage position by pulling in a direct axial direction to thereby
cause a wanted movement, it is relatively difficult for the wheels
to accidentally be pulled out when an obstruction is encountered
due to the twisting force component generated by virtue of the
obstruction since the twisting component works in a manner to bind
the sleeve within the support member 12, and thereby prevent
unintentional separational movement of the wheel structure from the
support.
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