U.S. patent number 3,921,539 [Application Number 05/537,653] was granted by the patent office on 1975-11-25 for shelf support structure.
This patent grant is currently assigned to Thomson-Leeds, Company, Inc.. Invention is credited to Barry David Berger.
United States Patent |
3,921,539 |
Berger |
November 25, 1975 |
**Please see images for:
( Certificate of Correction ) ** |
Shelf support structure
Abstract
A modular self supporting shelf type display device includes a
pair of adjustable laterally spaced foot pieces having sockets
separably receiving H-column standards having cross webs provided
with vertically spaced locking openings. Two or more shelves are
supported between the standards and are adjustable between inclined
and horizontal positions. A coupling member is formed at each side
edge of each shelf and rockably and slidably engages a respective
standard. Each coupling member includes a vertical base plate,
V-shaped inner positioning webs whose opposite sections converge to
a central throat engaging the standard cross web, V-shaped outer
positioning webs spaced from and parallel to the inner webs and
engaging the edges of the standard side webs and downwardly open
hook elements projecting from the ends of the inner positioning
webs. When the shelf is in a selected horizontal or inclined
position, a respective pair of opposite inner and outer positioning
web sections engage the standard cross and side webs and a pair of
hook elements engage cross web opening bottom edges. The
positioning webs may be multiple convolute shape.
Inventors: |
Berger; Barry David (Brooklyn,
NY) |
Assignee: |
Thomson-Leeds, Company, Inc.
(New York, NY)
|
Family
ID: |
24143559 |
Appl.
No.: |
05/537,653 |
Filed: |
December 31, 1974 |
Current U.S.
Class: |
108/8; 108/44;
108/69; 108/106; 248/188.8; 248/242; 248/244 |
Current CPC
Class: |
A47F
5/12 (20130101) |
Current International
Class: |
A47F
5/12 (20060101); A47F 5/10 (20060101); A47F
005/12 () |
Field of
Search: |
;108/6,8,65,69,90,96,106-110,144 ;248/242-246 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Mitchell; James C.
Attorney, Agent or Firm: Miskin; Howard C.
Claims
What is claimed is:
1. A display device comprising a vertical standard, a coupling
member vertically slidably engaging said standard, and a laterally
extending shelf member supported by and cooperating with said
coupling member, said coupling member limiting the swinging of said
shelf member about a laterally extending axis between first and
second predetermined angles and including means responsive to the
positioning of said shelf member in one of said predetermined
angles for releasably locking said shelf member to said standard
against the lowering of said shelf member along said standard.
2. The display device of claim 1 comprising a pair of said vertical
standards which are laterally spaced, said shelf member having a
pair of side edges and one of said coupling members located
proximate each of said side edges and engaging a corresponding
standard.
3. The display device of claim 2 including a transversely extending
foot piece located at the base of and separably engaging and
supporting each of said standards.
4. The display device of claim 1 wherein said vertical standard
includes a vertical first web lying in a transverse plane to the
axis of said shelf and a vertical lateral second web extending
transversely from said first web between the vertical opposite
edges of said first web.
5. The display device of claim 4 wherein said coupling member
includes a pair of opposing track sections lying along converging
lines and terminating at their proximate ends in a throat, said
track sections slidably engaging respective opposite vertical sides
of said standard first web and the bases of said track sections
alternatively engaging respective side edges of said first web when
said shelf is at corresponding predetermined angles.
6. The display device of claim 4 wherein said coupling member
includes a base plate positioned at a side end of and lying in a
plane perpendicular to the plane of said shelf member and a pair of
angular guide walls perpendicular to said base plate and converging
to a throat engaging said standard second web alternate pairs of
portions of said guide wall engaging said standard second web when
said shelf member is at a respective one of said predetermined
angles.
7. The display device of claim 6 wherein said guide walls have
longitudinal slots formed therein adjacent to said base plate and
slidably engaging said standard first webs.
8. The display device of claim 7 wherein said standard second web
has vertically spaced openings formed therein and a locking element
projecting inwardly from each of said guide walls and alternatively
releasably engaging selected ones of said openings when said shelf
is at a respective of said predetermined angles.
9. A display device comprising a pair of laterally spaced vertical
H-column standards, each including transverse side first webs and a
laterally extending medial second cross web, a laterally extending
shelf member positioned between said standards and swingable about
a laterally extending axis between alternative horizontal and
inclined positions and similar coupling members located at the side
ends of said shelf and rockably and slidably engaging respective
standards and being releasably lockable in a predetermined position
thereon, each of said coupling members including a base plate
having perpendicular to the plane of said shelf member and
positioned in a side edge thereof and a pair of outwardly directed
first positioning walls perpendicular to said base plate and
outwardly spaced therefrom by corresponding slots, said positioning
walls converging to and then diverging from a restricted throat of
greater thickness than said standard second web, alternative
opposing sections of said positioning walls engaging opposite faces
of said standard second web when said shelf is in corresponding
horizontal or inclined positions and the adjacent standard first
web slidably engaging said coupling member slots.
10. The display device of claim 9 wherein said standard second web
has vertically spaced locking openings formed therein and including
locking elements projecting from the opposite sections of each of
said first positioning walls and releasably engaging corresponding
standard web openings when said shelf is one of its alternative
positions.
11. The display device of claim 10 wherein said locking elements
consist of downwardly open hooks releasably engaging the lower
edges of respective standard web openings.
12. The display device of claim 9 wherein each coupling member
includes second positioning walls positioned in the respective base
plate outwardly of and parallel to said first positioning walls,
opposite sections of each of said second positioning walls engaging
the respective opposite side edges of the standard first web.
13. The display device of claim 12 wherein each of said positioning
walls is of V-shaped configuration.
14. The display device of claim 12 wherein each of said positioning
walls is of curved configuration with the radius of curvature
increasing from one end to the opposite end thereof and the
portions of the first positioning walls of least radius of
curvature being diametrically opposed.
15. The display device of claim 12 wherein the shelf member has
openings along a longitudinal edge, said shelf lower surface having
a boss extending therefrom parallel to and spaced from the
longitudinal edge from said openings, and an extension shelf having
projecting fingers for receipt in said openings and a groove to
matingly lock with said boss.
Description
BACKGROUND OF THE INVENTION
The present invention relates generally to improvements in display
or storage devices and it relates more particularly to an improved
adjustable shelf and standard structure of modular construction
which may be rapidly assembled or collapsed and in which the
shelves are angularly and vertically adjustable.
There are numerous applications for easily assembled and collapsed,
simple lightweight shelf structures which posses a wide range of
adjustment and variation in height, width and shelf arrangement,
size and inclination. The structures heretofore proposed and
availably possess numerous drawbacks and disadvantages. They are
expensive and bulky structures often of unattractive appearance.
Ordinarily, the shelves are supported from the rear and side, so as
to restrict accessibility and are of little versatility and
adaptability and otherwise leave much to be desired.
SUMMARY OF THE INVENTION
It is a principal object of the present invention to provide an
improved display device.
Another object of the present invention is to provide an improved
adjustable shelf structure.
Still another object of the present invention is to provide an
improved adjustable shelf structure of modular construction in
which the overall size of the structure and the arrangement and
orientation of the shelves as well as their sizes may be easily
varied and adjusted.
A further object of the present invention is to provide an improved
adjustable shelf structure, which is efficient in design and
economical in material, but yet is strong and desirable.
A still further object of the present invention is to provide a
structure of the above nature characterized by its reliability,
attractive appearance, ease and convenience of rapid assembly,
erection, collapse and adjustment, its ruggedness, low cost and
high versatility and adaptability.
The above and other objects of the present invention will become
apparent from a reading of the following description taken in
conjunction with the accompanying drawings, which illustrate
preferred embodiments thereof.
In a sense, the present invention contemplates the provision of an
improved modular, shelf type display device comprising at least one
vertical standard, a laterally extending shelf member and a
coupling member located on the shelf member and vertically slidably
engaging the standard and limiting the swinging of the shelf about
a laterally extending axis between predetermined angles and
including means responsive to the positioning of the shelf member
at one of the predetermined angles for releasably locking the shelf
member in its set position.
According to the preferred embodiment two or more laterally spaced
standards are provided, each standard having its lower end
separably nested in a medial socket formed in an adjustable
transversely extending foot piece. Each standard is formed of one
or more columns of H-shaped transverse cross section interconnected
end to end and having vertically aligned rectangular shaped
positioning openings formed in the standard crossweb, which extends
laterally. Each shelf member has a medially disposed integrally
formed coupling member at each end engaging a corresponding
standard, each coupling member including an inner transverse base
plate. Laterally outwardly projecting symmetrically disposed
positioning webs or strips are located on each base plate, the webs
being of shallow V-shape and including a pair of inner first
positioning webs whose apices are directed toward each other and
delineate a narrow throat and whose inner edges are spaced from the
base plate to define slots which engage the standard's side walls.
A second pair of positioning webs are disposed radially outwardly
of and are parallel to the first positioning web. A hook element
having a radially inwardly directed opening is located at an end of
each of the first positioning webs. When the shelf is between its
predetermined angles the shelf is freely slidably along the
standards. However, when the shelf is at a predetermined position
and angle, one of the end sections of each of the positioning webs
firmly engages the standard cross web or side wall and the hook
elements engage the lower edges of corresponding positioning
openings.
The improved display device is rugged, reliable, of great
versatility and adaptability, of attractive appearance, strong,
inexpensive and easy and convenient to assemble, erect, adjust and
collapse.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front perspective view, partially fragmented, of an
assembled display device embodying various aspects of the present
invention;
FIG. 2 is an enlarged, fragmentary perspective view of the shelf
coupling and support standard in a separated condition;
FIG. 3 is an enlarged sectional view taken along line 3--3 in FIG.
1;
FIG. 4 is a sectional view taken along line 4--4 in FIG. 1;
FIG. 5 is a sectional view taken along line 5--5 in FIG. 4;
FIG. 6 is a sectional view taken along line 6--6 in FIG. 1;
FIG. 7 is a sectional view taken along line 7--7 in FIG. 6;
FIG. 8 is a sectional view taken along line 8--8 in FIG. 6;
FIG. 9 is a sectional view taken along line 9--9 in FIG. 1;
FIG. 10A is a sectional view taken along line 10--10 in FIG. 1;
FIG. 10B is a sectional view taken along line 10B--10B in FIG.
9;
FIG. 11 is a sectional view taken along line 11--11 in FIG. 1;
FIG. 12 is a fragmentary view taken along line 12--12 in FIG.
11;
FIG. 13 is a sectional view taken along line 13--13 in FIG. 12;
FIG. 14 is a sectional view taken along line 14--14 in FIG. 1;
FIG. 15 is a sectional view taken along line 15--15 in FIG. 1;
FIG. 16 is a sectional view taken along line 16--16 in FIG. 1;
FIG. 17 is a botton plan view of the foot piece shown in FIG. 16;
and
FIG. 18 is a sectional view taken along line 18--18 in FIG. 16.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the drawings which illustrate a preferred
embodiment of the present invention, the reference numeral 10
generally designates the improved display device, which includes
two or more standard assemblies 11 and a plurality of shelves 12
which are individually adjustable in size, position and
orientation. While only two standard assemblies 11 are shown, it
should be understood that more such assemblies may be employed and
they are regularly laterally spaced as determined by the lengths of
the shelves 12, which are equal to each other. The intermediate
standards 11 are common to adjoining pairs of shelves. The number
and arrangement of the shelves may likewise be modified. The
various components of the display device may be formed of any
suitable material in the conventional manner, for example, extruded
aluminum or they are advantageously formed of a synthetic organic
polymeric resin, such as polystyrene, polypropylene,
acrylonitrile-butadiene-styrene (ABS) and the like.
FIG. 1 illustrates various positions and forms of the shelves 12 on
standard assemblies 11. Referring to the various shelves in FIG. 1
from top to bottom, the topmost shelf is in sliding position to
locate it anywhere along standard members 13. The second shelf from
the top illustrates the shelf in horizontal position which one
shelf extender on and the rear extender in exploded position and an
adjoining fragmentary shelf shown. The next lower shelf is in
45.degree. position with a front edge guard shown. This position
allows positive feed of merchandise placed on the shelf when the
frontmost item is removed. The bottom shelf is also at a 45.degree.
angle with an extender and edge guard mounted.
The standard assemblies 11 each include one or more standard
members 13 separably connected end to end and a foot member 14, as
best seen in FIGS. 1 and 16-18. The foot member 14 as seen best in
FIGS. 16-18, comprises a transversely extending body member 16
including transversely aligned oppositely projecting channel shaped
legs 17 medially joined by a vertically upwardly enlarged
midsection 19. Each of the legs 17 includes a horizontal top wall
20 and depending side walls 21, the top walls 20 joining upwardly
inwardly inclined top walls 22 of midsection 19 and the side walls
21 being joined by the vertical side walls 23 of midsection 19. A
medial vertically oriented coupling well 24 of square horizontal
cross section is formed in midsection 19 and is delineated by a
bottom wall 26 at the base of midsection 19, slightly downwardly
converging front and rear walls 27 and the midsection side walls
23. Extending longitudinally along the inside faces of side walls
21 shortly below the top walls 20 are ribs 28 having coplanar top
shoulders and a transverse rib 29 depends from the underface of top
wall 20 proximate its outer end. The side walls 21 terminate at the
free ends in short depending foot sections 30.
Slidably telescoping each of the channel legs 17 is a nesting open
bottom channel shaped extension leg 32 which projects beyond the
end of the corresponding body leg 17 and is selectively slidable
between extended and retracted positions. Each of the extension
legs 32 includes a top wall 33 underlying the corresponding top
wall 20 of leg 17 and depending side walls 34 provided along their
tops with outwardly directed projections 36 slidably engaging
tracks defined by the top wall 20 of legs 17 and ribs 28.
Longitudinally spaced, laterally extending grooves 37 are formed in
the top face of channel top wall 33 and are releasably engagable by
rib 29 of top wall 20 to lock the extension leg 32 in a prescribed
position.
A downwardly open well 38 is formed at the end of each extension
leg 32 and is provided at its base with three angularly related
depending vertical panels 39 provided at their underfaces with
bosses 40. A ball roller 41 nests in the wall 38 and engages the
bosses 40 and projects below the well 38, the ball 41 being
rotatably retained in the well 38 by a suitably shaped annulus or
washer 42 secured in the open end of well 38.
Referring now to FIGS. 1-5, each of the standard members 13
includes a single column unit 43 of generally "H"-shaped transverse
cross section or two or more axially aligned H-column units
separably connected end to end by suitable fasteners. Each column
unit 43 includes laterally spaced transverse side walls 44
connected by a medial cross web 46 having formed therein regularly
vertically spaced rectangular positioning openings 47, which extend
for the full width of the cross web 46. Formed on the outside faces
of the column side walls 44 along their vertical edges and medial
axes, are parallel vertical ribs 48. The bottom section of each
standard member 13 nests and is slightly wedged in a corresponding
coupling well 24 of a foot member 14 and is separable therefrom,
the column side walls 44 being transverse and the webs 46 extending
laterally.
When the standard member 13 includes two or more end to end column
units 43, as shown best in FIGS. 4 and 5, the column units are
separably joined by a connector 45 including first and second
coupling members 49 and 50 respectively. The first coupling member
49 comprises a rectangular vertical base plate 51, which overlies
one face of the end to end webs 46 at their juncture and is
provided with outwardly directed side walls 52 which overlie the
inside faces of the column side walls 44 and top and bottom
horizontal walls 53. Integrally formed with the base plate 51 and
projecting through web openings 47 adjacent to the juncture of
column units 43 are rectangular vertically aligned loops 54 having
lateral end legs 56. The second coupling member 50 extends through
the loops 54 and is wedged between the loop end legs 56 and the
cross web 46, the coupling member 50 being channel shaped and the
nesting within the loops 54 and being provided at its top with a
finger piece 55.
As shown best in FIGS. 1, 11-15, each of the shelf assemblies or
shelves 12 comprises a main shelf member 57 of rectangular
configuration including a rectangular top panel 58 with depending
side end flanges 59 and front and rear flanges 60. Formed in the
front and rear borders of each panel 58 and extending for slightly
less than the full length thereof is a groove 61 and formed in each
flange are regularly laterally spaced rectangular openings 63
providing access to the underface of the panel 58. In alignment
with and shortly inwardly of each opening 63 is a depending
coupling ridge 64.
Integrally formed with each main shelf member 57, as best seen in
FIGS. 2 and 3, along the medial side edge flange 59 thereof is a
pair of opposite laterally aligned coupling members 65, each of
which includes a base plate 66 extending transversely and being in
a plane perpendicular to the panel 58 and inwardly of the proximate
end flange 59. The opposite edges of base plate 66 are curved and a
peripheral wall 67 projects laterally outwardly from the curved
edges and are interrupted by diametrically opposed openings 68,
whose medial axes are disposed at angles of 221/2.degree. to the
perpendicular of panel 58. Peripheral extending slots 69 are formed
at the bases of walls 67, proximate base plate 66, in the sections
of walls 67 proximate the openings 68, the distance between the
remote ends of adjacent slots 69 is greater than the width of
column wall 44 and the width of the slots 69 is slightly greater
than the column side wall maximum thickness.
A pair of opposing shallow V-shaped similar inner guide walls 70
are integrally formed with the peripheral wall 67 and have inner
edges spaced from the base plate 66 a distance equal to the width
of slot 69, the lateral outer edges of walls 70 being coplanare
with those of peripheral wall 67. The guide walls 70 are
symmetrical with the medial 221/2.degree. axis of openings 68 and
each guide wall 70 includes upper and lower legs 71 and 72
respectively, extending from peripheral wall 67 at points inwardly
of openings 68 and joined by a curved apex 73, the adjacent leg of
opposite guide walls being 45.degree. to each other. The distance
between the planes of the inside faces of upper legs 71 and
correspondingly opposite lower legs 72 is about equal to the
thickness of column cross web 46 and the distance between apices 73
is somewhat greater than such distance.
A symmetrical pair of similar outer V-shaped guide walls 74 are
equally spaced outwardly of guide walls 70 and are integrally
formed with base plate 66 and peripheral wall 67. The distance
between the apices of guide walls 74 is greater than the width of
column side wall 44 and the distance between the planes of the
inside faces of opposite top and bottom legs of guide walls 74 is
about equal to such width. Projecting inwardly from each end of
peripheral wall 67 adjacent opening 68 are fingers 76 which form
with their adjacent corresponding guide wall legs 71 and 72
respectively coupling hooks 77.
In the assembled condition of the standards 13 and the shelf member
57, the opposite coupling members 65 engage a corresponding
laterally spaced column unit 43, with the column side walls 44
received within and engaging the slots 69 and the column cross webs
46 extending through openings 68 and between opposing apices 73.
When the shelf members 57 is inclined at a 221/2.degree. angle as
shown in FIG. 3, it is freely vertically movable along the column
unit 43. However, when the shelf member is swung either to a
horizontal position or to a 45.degree. inclination, one pair of
opposite guide legs 71 and 72 tightly engage the cross web 46 and
the corresponding aligned legs of guide wall 74 engage the
respective edges of column side wall 44. In addition, a
corresponding pair of hooks 77 engage the lower edges of respective
positioning openings 47.
As seen in FIGS. 1 and 14, the front and rear edges of the shelf
member 57 may be provided with upwardly directed retainer wall 78
separably connected to one or both lateral edges of the shelf
member 57 and extending for the full lengths thereof. Each retainer
wall 78 includes a laterally extending panel 79 abutting the shelf
flange 60 and provided along its top and bottom edges with
forwardly converging laterally extending lips 80. Projecting
rearwardly from the bottom edge of web 79 is a flange 81 engaging
the underface of flange 60 and terminating in an upwardly directed
lip 82 engaging the underface of flange 60. Also directed
rearwardly from the rear face of web 79 between the top and bottom
therefrom is a flange 83 terminating in a depending lip 84 matingly
engaging the groove 61 along the full length thereof. The retainer
wall 78 may be applied or separated from the shelf member 57 by
respectively snapping or unsnapping the lip 84 from groove 61 and
lip 82 from flange 60.
Referring now to FIGS. 1, 11-13 and 15, extension shelves 86 may be
attached to or detached from the main shelf members 57, and
includes a top panel 87 having depending from its front edge a
flange 88 corresponding in construction to flange 60, a depending
rear flange 89 and side end flanges 90. In the attached condition
of self member 86 the rear flange 89 abuts a shelf front flange 60
and coupling members 91 extend rearwardly from the flange 89
through corresponding openings 63 in adjacent flange 60.
Each of the coupling members 91 includes a top plate 92 abutting
the underface of the shelf panel 58 and reinforced by a plurality
of laterally spaced depending thin integrally formed similar panels
94. The panels 94 are provided with upwardly inwardly inclines
bottom edges 96 terminating at its front end in a rounded shoulder
97 releasably engaging the bottom inner edge or corner 98 of a
respective opening 63 and terminating at its rear in a rounded end
99. The inner free end of plate 92 is enlarged in thickness and is
provided in its top face in a laterally extending groove releasably
engaging a respective rib 64. The coupling members snap fit into
the openings 63 with the ribs 64 releasably lockable engaging the
mating grooves in the coupling plates 92 and the opening corners 98
and rounded shoulders 97 releasably engaging. The extension shelf
86 may be pulled from the main shelf 57 by applying sufficient
force. A retainer wall 100 similar to retainer wall 78 may be
applied to the outer edge of the extension shelf 86.
The shelf assembly may be erected or disassembled in a manner which
is clear from the above. Any desired arrangement of the shelves may
be achieved by applying the main shelf member 57 to the foot piece
supported column units 43, coupling additional column units to the
lower units by means of the connector members 49 and 50 and adding
additional shelves. The shelf coupling sections 65 are less than
half the width of the column cross webs 46 permitting the coupling
of two coupling members 65, side by side, in a common column unit
43. Accordingly, more than two regularly spaced standard members 13
and associated foot members may be provided, with adjacent standard
members joined by bridging shelf members 57. The shelf members 57
may be individually adjusted to their horizontal and inclined
positions and vertically adjusted and provided with any desired
shelf extension and retainer wall.
While the coupling members 65 were shown to be integral with the
shelf 57, they could be separate, such as a bracket and shelf
mounted on a pair of brackets.
Maximum strength of this device 10 is achieved by reason of the "H"
shape of the standard and the interaction of the coupling member.
The coupling member fully enclose one vertical leg of the "H" in
two plannar dimensions to provide maximum surface contact. This
large bearing surface of the bracket against each standard produces
a strong unit per unit of weight. If each leg of the standard is
about an inch deep from the center and the coupling section is
about 3 inches long, there are 3 square inches of surface contact
on both sides of the H standard plus the surface contact of the web
and edge, about 1/8 inch. Also, the various slots or openings of
coupling member 65 have different tapers for different purposes. To
move freely the shelves along the standards, the central two-thirds
of the slotted passageway, opening 68 and between apices 73, as
shown in FIG. 3, is widest to move the shelves quickly. Once at the
selected vertical position, the shelves are swung clockwise or
counter clockwise to lock them into a 45.degree. (FIG. 6) or
180.degree. (FIG. 10A) position respectively, and corresponding
coupling hooks 77 and corresponding legs 71 and 72 are wedged
against the cross webs 46 and guide walls 74 abut column side walls
44. The slots formed by these cooperative members are tapered both
horizontally and vertically to lock the shelves into selected
position along the standards.
While there has been described and illustrated a preferred
embodiment of the present invention, it is apparent that numerous
alterations, omissions and additions may be made without departing
from the spirit thereof. For example, the guide walls 74 may be
omitted and the V-shaped guide walls may be replaced by curved
guide walls which advantageously are of spiral convolutions or
otherwise and of varying radium of curvature.
* * * * *