U.S. patent number 3,603,274 [Application Number 04/845,173] was granted by the patent office on 1971-09-07 for modular adjustable wall shelving.
This patent grant is currently assigned to Hirsh Company. Invention is credited to Irwin J. Ferdinand, Irwin R. Kulbersh.
United States Patent |
3,603,274 |
Ferdinand , et al. |
September 7, 1971 |
MODULAR ADJUSTABLE WALL SHELVING
Abstract
Modular knockdown shelving is disclosed having vertical spaced
supports with a plurality of recessed slots for the engagement of
adjustable hidden brackets that support the ends of shelf members
whereby the brackets lock to the shelves and the supports by the
load thereon. A plurality of shelves can be variously positioned in
vertically spaced relationship between and upon a pair of upright
supports and can be readily adjusted, one to the other, to provide
the desired spacing between the shelves. The shelves have a plane
top surface with a rolled flange edge and are provided with a
bottom panel, also having a flanged edge which interlocks with the
rolled flange and also locks to the brackets. In one embodiment,
the brackets fit within the rolled flanges of the shelf ends and
serve both to interlock the top and bottom panels and rigidly
support the shelf in load-supporting relationship.
Inventors: |
Ferdinand; Irwin J. (Glencoe,
IL), Kulbersh; Irwin R. (Morton Grove, IL) |
Assignee: |
Hirsh Company (Skokie,
IL)
|
Family
ID: |
25294573 |
Appl.
No.: |
04/845,173 |
Filed: |
July 28, 1969 |
Current U.S.
Class: |
108/108; 108/152;
248/243; 248/250 |
Current CPC
Class: |
A47B
96/027 (20130101); A47B 57/425 (20130101) |
Current International
Class: |
A47B
57/42 (20060101); A47B 57/00 (20060101); A47B
96/02 (20060101); A47b 057/06 () |
Field of
Search: |
;108/108,109,107,152
;211/135,153 ;248/243,239,250,223,225 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Gay; Bobby R.
Assistant Examiner: Aschenbrenner; Peter A.
Claims
What is claimed is:
1. Knockdown shelving including:
a. a shelf member, a bracket member and an upright support
member;
b. said shelf member having spaced top and bottom walls extending
over a portion of the width and length of the shelf;
c. an aperture in said shelf opening to the space between said
spaced walls;
d. said bracket member having a hook end with an upwardly turned
tab extending above said top wall and a support arm extending
downwardly below the bottom wall;
e. said support member having a vertical recessed intermediate wall
with a slot therethrough at the shelf level;
f. whereby in the assembled condition said hook end of said support
arm is adapted to engage the slot in said intermediate wall of said
support member with said tab against the backside of said wall
above said slot and said support arm extending through said
aperture into the space between the top and bottom walls of said
shelf.
2. Knockdown shelving in accordance with claim 1 in which:
a. said shelf member has a depending flange member at one side and
an aperture in the bottom wall contiguous to said flange;
b. said bracket member has a notch in the top edge of said support
arm whereby said flange member is engaged within the notch of said
support arm in the assembled condition of said shelf.
3. Knockdown shelving in accordance with claim 1 in which:
a. the top and bottom walls of said shelf member have a box channel
open at one end; and
b. said support arm is adapted to press fit into said box
channel.
4. Knockdown shelving in accordance with claim 1 in which:
a. the top wall of said shelf member has a depending box flange
along opposite edges and a depending upwardly turned reverse flange
along a remaining edge to form a stiffened top panel;
b. said bottom wall of said shelf member has an upstanding flange
along opposite edges and a downwardly turned reverse flange along a
remaining edge to form a reinforcing bottom panel;
c. the effective perimeter of said flanges of said bottom panel
being less than the perimeter of said flanges of said top panel
whereby the former is nestable within the latter in which nested
condition the inner wall of said box flanges engage against the
upstanding flanges of said bottom panel and the reverse flange of
said top panel engages under the downwardly turned flange of said
bottom panel.
5. Knockdown shelving in accordance with claim 4 in which:
a. said top and bottom panels are rectangular in planar
configuration the sides of which are defined by the respective
flanges of said opposite edges of each and the ends are defined by
said respective reverse flanges and downwardly turned reverse
flanges.
6. Knockdown shelving in accordance with claim 4 in which:
a. said bottom panel has an opening in one of said opposite edges
to receive said support member; and
b. said support arm is press-fitted between said top and bottom
walls of said shelf member.
7. Knockdown shelving in accordance with claim 2 in which:
a. the hook end of said bracket member has a lower buttress edge
facing away from from the support arm;
b. an upwardly depending tab is provided at the top edge of said
hook;
c. said tab having a buttress edge facing toward said support
arm;
d. said respective buttress edges are vertically offset from each
other an amount substantially equal to the thickness of said
intermediate wall of said support member; and
e. a notch is provided in the top edge of said support arm to
receive said depending flange member.
8. Knockdown shelving in accordance with claim 7 in which:
a. said support member has a second wall outward from said recessed
wall;
b. said notch in said support arm has an edge spaced from said
lower buttress edge of said hook member an amount substantially
equal to the space between said recessed wall and said second outer
wall;
c. said tab having a buttress edge facing toward said support
arm;
d. said respective buttress edges are vertically offset from each
other an amount substantially equal to the thickness of said
intermediate wall of said support member; and
e. a notch is provided in the top edge of said support arm to
receive said depending flange member.
9. Knockdown shelving in accordance with claim 7 in which:
a. said support member has a second wall outward from said recessed
wall; and
b. said notch in said support arm has an edge spaced from said
lower buttress edge of said hook member an amount substantially
equal to the space between said recessed wall and said second outer
wall.
Description
Ferdinand et al. U.S. Pat. No. 2,837,219 211-147 Handler et al.
U.S. Pat. No. 3,139,258 211-136 Ferdinand et al. U.S. Pat. No.
3,265,455 312-295 Ferdinand et al. appln. Ser. No. 745,287 Filed:
July 16, 1968
__________________________________________________________________________
BACKGROUND OF THE INVENTION
Modular knockdown shelving for home and office is known in the art.
These units are conventionally assembled with various forms of
securing devices, screws and bolts that do not always provide
predetermined levelling control or rigidity because the tightness
of the parts depends upon the skill of the installer in affixing
hard to reach securements. These tool assembled shelving units not
only require skill in their installation but are more difficult,
costly and time consuming to install.
There has been a trend in wood shelving to use exposed accessory
equipment and brackets which, although exhibit strength, do detract
from the appearance of the shelves and show that they are of the
knockdown variety. In depicting conventional book shelves for
attachment to a wall or as wall cabinets with their ends disposed
in vertical alignment, these devices leave gaps between the shelf
ends into which small articles disappear. The supporting parts
generally extend to the floor areas where they interfere with
cleaning below them and otherwise obstruct usable areas of the
shelving. These prior art shelves, excepting those recited in the
cross-references supra, not only display their structural bracing
but do not overlap decoratively to break the sameness of parallel
vertical and parallel horizontal lines.
The instant invention is directed to modular adjustable shelving
for walls and the like which overcomes and mitigates these and
related drawbacks of the prior art shelving.
SUMMARY OF THE INVENTION
The present invention is concerned with modular knockdown shelving
characterized by double-walled and enclosed end individual shelf
units adapted to receive integral brackets engageable with spaced
fixed uprights and each being positionable in a vertical place,
wherein one hook portion of the bracket locks within a slot in the
upright and the other longer portion or supporting arm of the
bracket locks within the space between the double walls. In one
embodiment, the shelves have rolled end box flanges defining an
internal elongated space adapted to receive the longer portion of
the bracket whereby the shelves are mountable in either random
positions from the brackets or in a symmetrical horizontal
end-to-end configuration. In either embodiment the inner terminal
wall of the rolled box flange, is adapted to yieldably receive an
upturned side flange and the down-turned end flanges of the bottom
panel or wall in assembly and then be locked into that position by
the inserting of the longer supporting arm of the bracket. The
slots in the vertical fixed supports are recessed in a vertical
reinforcing channel, the one hook portion of the brackets locks the
shelf to the upright at each slot so that once assembled, only
plain, uncluttered and finished metal surfaces are seen in the
normal attitude of the shelving.
DESCRIPTION OF THE DRAWINGS
Referring to the drawings illustrative embodiments of this
invention are shown wherein:
FIG. 1 is a fragmentary perspective view of a shelving assembly of
this invention;
FIG. 2 is a fragmentary cross-sectional view taken along the lines
2--2 of FIG. 1;
FIG. 2A is a fragmentary cross-sectional view along the lines
2A--2A of FIG. 7A of a modified form of the shelf bracket;
FIG. 3 is a fragmentary cross-sectional view taken along the lines
3--3 of FIG. 2;
FIG. 4 is a fragmentary plan view of a bottom panel wall of one of
the shelf members;
FIG. 5 is a fragmentary perspective view of a corner of an
assembled double-walled shelf member showing a corner insert means
and the interlocking flanges of the top and bottom panels in broken
lines;
FIG. 6 is a fragmentary cross-sectional view taken along the lines
6--6 of FIG. 5 to show one form of the side flange
construction;
FIG. 7 is a fragmentary cross-sectional view taken along the lines
7--7 of FIG. 5;
FIG. 7A is a fragmentary cross-sectional view to show another form
of side flange construction with two shelves in abutting
relationship at an upright having a widened channel;
FIG. 8 is a fragmentary plan view of the corner shown in FIG. 5
with the corner insert in place;
FIG. 9 is a fragmentary cross-sectional view taken along the lines
9--9 of FIG. 8; and
FIG. 10 is a fragmentary partially sectioned view of the underside
of shelf showing juncture of the bracket and the upright support
member.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, there is shown an assembly of three identical
shelves 10 and a pair of identical uprights 12, the latter being
affixed to a wall or other vertical surface (not shown), lying in
the rear plane of the perspective, with the objects 14 supported
thereon. Each of the shelves 10 has a top panel 16, a bottom panel
18 and the corners of the shelves have corner inserts 20. Each
shelf is supported at a point opposite an upright 12 by means of a
bracket 22, only a small portion of each being visible in FIG.
1.
Referring to FIGS. 2 and 3, the structure of the uprights 12 is
shown more clearly to comprise a single-piece, elongated, extruded
and shaped metal post comprising a pair of spaced walls 24 and 26,
the back edges 28 of which are essentially coplanar and open
therebetween, to engage against the supporting wall 30.
The pair of sidewalls are bent toward each other at the other edges
to form the rounded corners 32 and the flat front sections 34 and
36 along the entire length of the support member. The walls 34 and
36 can be the same or different widths and are spaced from each
other a distance sufficient to receive therebetween a single
bracket 22 or as shown in FIG. 7A a pair of brackets set
side-by-side. The walls 34 and 36 are each again reverse bent as at
38 to form the continuous elongated channel defined between the
inner walls 40 and 42 and terminating in the intermediate wall 44
spaced outwardly from the edges 28. This latter wall is a primary
supporting surface, both fore and aft, for the brackets 22, as will
be described. The intermediate wall 44 of the channels has a series
of slots 45 therein for attachment of the shelves at selected
heights.
First, reference is made to FIGS. 2 and 5, to illustrate that the
top panel 16 of each shelf 10 has a supporting top surface 50
having the integral front-side box flange 52, the rear-side box
flange 54, and end reverse flanges 56 and 58. Since the box flanges
52 and 54 are essentially the same except for the modification
disclosed in FIG. 6, the description of the flange 52 in FIG. 2,
will suffice for their general configuration and as one embodiment
thereof. Thus, the top 50 is turned upwardly to form the
object-retaining edge 59 and then rolled outwardly and downwardly
to form the rounded top edge 60, then the flange 52 is turned
inwardly to form the inner wall 64 and finally is bent outwardly
again to form the inner edge flange 66 which can be press-fitted
into the rolled edge 60 (FIGS. 5 and 10). FIG. 6 represents a
modified front-side flange 52 and also a modified rear-side flange
54 wherein the inner edge flange 66' is of lesser width than the
internal width of the rolled edge 60 to thereby be spaced from the
inner wall 68 as indicated at 70. This structure allows a slight
spring action in the wall 64 to the extent of the space 70
therealong.
The end flanges 56 and 58 of the shelf are differently formed by
the omission of the top rolled edge 60 therefrom so that the
shelves may abut at these ends one to the other in an essentially
flat coplanar configuration using double uprights 12 or a single
modified upright 12' (FIG. 7A) and in the fact that the lower
rolled edge 72 terminates in a shallow inner upright reverse flange
74 (FIG. 5). The flanges 56 and 58 are rolled from an elongated tab
at each end of the blank sheet metal in forming the top panel 16 in
a manner known in the art. The four corners of the top panels 16
are cut out or notched as shown in FIG. 5 which forms the edge 76
intersecting with the edge 78 forming a cutout corner and exposing
the open end of the flanges 56 and 58 and the open end 80 of each
box flange 52 and 54 along the edges of the shelf.
In FIG. 4 a top plan view of a bottom panel 18 of a shelf is shown,
having the inner surface 82, identified for subsequent orientation
of the assembled parts, with each of the four corners cut off as
shown at 84. The bottom panels 18 are each flat and essentially
rectangular or conforming in shape to their matching top panel 16.
Each of the bottom panels 18 has a pair of rear or wall-side
notches 86 cut therein, defined by the parallel edges 88 and 90 and
the inner edges 92. This rear edge of the panels 16 has the upright
flange 94, as viewed in FIG. 4, extending therealong, intercepted
by or made discontinuous by the notches 86 and terminating at the
cutoff corners 84.
The front edge of each of the bottom panels 18 has a similar
upstanding flange 96 running continuously or discontinuously
therealong. In one embodiment these flanges 94 and 96 are somewhat
shorter than the width of the support arms 100 (shown in FIGS. 2
and 10) of the bracket members 22 and another embodiment are higher
as shown at 94' and 96' in FIGS. 2A and 6. The remaining edge or
sides of the panels 18 have the downturned flanges 102 and 104
which are about a depth corresponding to the height of the upright
flanges 74 over which they engage as shown at one end in FIGS. 5
and 7. The corner members 20, all of which are identical (FIGS. 5,
8 and 9) are constructed of hard rubber or plastic in a square or
round design to fit within the cutout corners 76-78 with the ear
106 extending from one wall and the protuberance 108 extending from
a contiguous wall. The ear 106 is adapted to be press-fitted into
the channel opening 80 of the front box flange 52 in the manner
shown in FIG. 9 while at the same time the protuberance 108 engages
and locks within or behind the reverse flange 56 on a side of the
shelf. The protuberance 108 can have a sloping inner surface 110
and a more perpendicular outer surface 112 so that it has a camming
and locking action. Once in place, it is not easily removed. The
outer surfaces 114 can be flush or not with the outer surfaces of
these respective flanges and as before stated can be rounded. The
ear 106 is offset from the inner surface 116 so that it matches
with the channel and the members 20 fit snugly in each corner
opening. Since the panel 18 has cutaway corners 84, the insertion
of the corner members 20 does not interfere with the assembly of
the shelf. Those corner members 20 that are placed in the rear box
flange 54 are reversed so that their protuberances 108 face toward
and engage the inner ends of the respective flanges 56 and 58.
The upright supports 12 have the inner channel 40-42 cut out on
each side as at 120 (FIG. 2) and also the wall 44 has an opening
122 aligned therewith to receive the wood screw 124 to fasten the
supports 12 to the wall structure 30. A number of such fastening
points are provided along the length of each of the supports
12.
The supports 12 are positioned to the wall in a spacing such that
there is a support opposite each of the openings 86 of the shelves.
These openings are wider than the supports the openings and no
particular care is necessary in this placement as long as the
supports for each shelf series are vertical and parallel. Where
uniformity in appearance is important, even placement of the
supports 12 centrally opposite each of the openings 86 is readily
accomplished.
To assemble a shelf 10, it is only necessary to place a panel 18
within a panel 16 and push slightly against the edges of the
flanges 102 and 104, so that they bend upwardly sufficiently to
slip over the flanges 74 at each end as shown in FIG. 7. At the
same time, the flanges 94 and 96 take a position such as shown in
FIGS. 2 and 7 at each of the front and rear box flanges 52 and 54
of the shelf. The corner inserts 20 can be inserted at this time or
later in the assembly.
Referring to FIGS. 2 and 10 a bracket 22 is shown with its support
arm 100 placed within the space between the panels 16 and 18 and
with the top and bottom edges contiguous to the interior surfaces
126 and 82 of these panels. The end 128 of the bracket arm 100 is
spaced from the flange 94, but may abut thereagainst. The brackets
22 have hook ends 130 with the offset buttress 132 and the notch
134 at the opposite or top edge 136. The buttress 132 has an inner
upstanding end tab 138 with a flat surface 140 on its inner edge
and the offset oppositely facing lower edge 141. The bottom edge of
the tab 138 is rounded, as at 142, and joins the edge 141 at the
corner 144. The effective distance between the respective planes of
the edge 140 and the edge 141 is substantially the same as the
thickness of the intermediate wall 44.
The bracket 22 is positioned and attached to the shelf by inserting
the support arm 100 into the opening 86 with the bracket turned
sideways. As it is inserted it is turned to the edgewise position
shown when the notch 134 registers with the reverse flange 54 and
then it is turned about 90.degree. to the upright or edgewise
position shown with the notch 134 engaging the reverse flange 54 at
the ear end of the shelf. This locks the bracket 22 within the
shelf and it cannot be moved except by reversing this procedure.
The openings 86 allow lateral adjustment of the brackets in a
shelf.
Having affixed two brackets 22 to a shelf, one through each of the
openings 86, the shelf is tipped upwardly and the hook ends 130 are
inserted into the channels 40-42 at an angle so that the tabs 138
pass into the slots 45 of each upright support. The shelf is then
allowed to hinge downwardly due to the clearance provided by the
curved edge 142 to the locked position shown in FIG. 2. In this
position, the edge 140 engages the backside of the intermediate
wall 44, the corner 144 engages the bottom edge of the slot 45 and
the buttress edge 141 fits against the front side of the
intermediate wall 44. The corner 144 forms a fulcrum point and the
buttress 132 takes the thrust of the weight of the shelf at the
bottom wall 44 of the channel. A firm and secure fastening results.
The juncture of the buttress 132 with the support arm 100 can be
beveled, as at 146, sufficiently forward of the notch 134 to retain
the rigidity of the bracket. As the brackets 22 lock into the
uprights, the rear-side box flange 54 is also brought into abutting
relationship with the wall 34-36 of each upright 12 on each side of
the bracket 22, imparting lateral stability to the assembly. To
remove a shelf, it is only necessary to grasp the forward edge and
hinge it upwardly, whereby the rounder corner 142 clears the bottom
edge of the slot and allows the tab 138 to come out.
The front flange 96 and the rear flange 94 of the bottom panel 18,
in the embodiment just described are shorter than the space between
the surfaces 82 and 126 of the opposing panels. The primary
interlocking of the panels is that of the respective flanges 102
and 104 with the end flanges 72 and upturned edge 74 although the
flat outer faces of the flanges 94 and 96 do frictionally engage
inside the box channels 52 and 54. Thus, there is provided some
vertical resilience between the panels so that the arm 100 wedges
tightly therein when turned to its upright position. This action
may bow the bottom panel 18 slightly at the contact area of the arm
100. However, the main thrust on the shelf is between the top edge
of the arm 100 and the surface 126 of the panel 16. The panel 18,
nesting as it does within the top panel 16, with the flanges 94 and
96 sprung slightly inside the box flanges 52 and 54, adds rigidity
to the box structure formed and complements the rigidity imparted
by the arm 100.
Further, structural rigidity can be provided in accordance with the
invention by providing the form of front-side box flanges and
rear-side box flanges shown in FIG. 6. In this structure,
illustrated by a front-side flange 52, the front flange 96' of the
bottom panel 18 is longer than the space between the assembled
panels. In this embodiment the end flanges 56 and 58 of the top
panel 16 and the end flange 104 of the bottom panel 18 are the same
as shown in FIGS. 5, 7, and 10. However, as the bottom panel 18 is
nested within the top panel 18, the front flange 96' and the rear
flange 94' (FIG. 2A) are forced up between the inside of the curved
edge 60 against the resilience of the wall 64 as allowed by the
space 70. The space 70 can be adjusted by variations in the length
of the turned edge 66' so that it is greater than, about equal to
or slightly less than the thickness of the flanged wall 96' (or the
flange 94' for the rear box flange 54). In this manner the gripping
action between the part along these edges can be made dependent on
the resilience of the flange wall 64, or on the combined resilience
and wedging action of the edge 66' into the inner rounded corner of
the curved edge 60 as at the space 70.
The flanged interlock arrangements shown in FIGS. 2, 5 and 10 and
that of FIG. 6 for the front-side and rear-side box flanges 52 and
54 can be used with the modified end flange construction shown in
FIGS. 2A and 7A. In this embodiment, referring to FIG. 7A, a pair
of contiguous shelves 10 is shown, affixed to a modified upright
support 12' having the walls 34-36 set apart a greater distance,
and having an enlarged slot 45' therebetween to accommodate a pair
of modified brackets 22' in side-by-side relationship.
Referring to FIG. 2A it is seen that the modified bracket 22' has
the same support arm 100, the hook end 130, the buttress 132, the
tab 140 etc. but the notch 134 has been omitted. The cutout corner
76-78 here shown for the rear-side box flange 54, but including for
purposes of illustration, the embodiment shown in FIG. 6, now
accommodates the support arm 100 which extends into the end flange
56 (of each shelf) and is contiguous to the bottom rolled edge 72
and retained by the reverse edge flange 74.
Each of the top panels 16, shown in FIG. 7A are the same as
illustrated in FIG. 4 and the parts thereof need not be further
described except as they relate to and cooperate with the lower
panels 18'. Each lower panel 18' has the end flange 150 extending
upwardly with the reverse flange 152 formed therealong and is
provided with the retaining edge 154 formed to engage over the top
of the support arm 100 of the modified bracket 22'. The rear or
wall side notches 86 are omitted in the panel 18' of this
embodiment. The end flanges 56 of the top panels 16 and the flanges
150, in the assembled shelves 10 shown in FIG. 7A formed a channel
opening 156, at each end of the shelves, to receive the support
arms 100. These flanges are dimensioned such that the height of the
channel opening 156 is the same as, or slightly less than the
vertical width of the support arm 100. If desired, the end 128
(FIG. 2A) of the bracket can be beveled or rounded as at 158, at
one or both corners to facilitate insertion of the shelf on the
support arm. The support arm 100 can also taper slightly to a
smaller vertical width at the end 128 along the length so that a
squeeze fit in the channel 156 is assured.
The shelves 10 in FIG. 7A can be affixed to the supports 12' in two
different ways, e.g., by inserting a bracket 22' in each end of
channel 156 of a shelf and then hooking the tab 138 into the slot
45' in the manner previously described, or by first affixing the
brackets and then attaching the shelf thereto by pushing the
channel openings 156 upon the support arms 100.
From this description it is seen that the knockdown shelving of
this invention comprises three essential components, the assembled
shelf member, the bracket member and the upright support member, to
include a pair of the latter members to complete an assembly. The
shelf member requires only spaced top and bottom walls 82 and 126
to function and these spaced walls need extend only over a portion
of the width and length of the shelf. The bracket members require a
hook means at one end and a rigid support arm extending therefrom.
Likewise, the upright support members require a longitudinal
recessed wall on intermediate wall with a slot such as the slot 45
therein.
Further rigidity to the assembly is provided by the interengaging
backside flange 54 and the notch 134 in the support member. A
feature of the invention is to provide a shelf comprising the two
interlocking panels 16 and 18 or 16' and 18' as have been
illustrated. This structure further in combination with the front
and back box flanges 52 and 54 forms a rigid and safe shelf for
high density items such as books and the like. Still another
feature can be seen in the manner in which the four flanges of the
two panels lock into each other, both from the standpoint of ease
of assembly and the rigidity and appearance of the assembled shelf.
Furthermore, end to end abutment of the shelves on a common upright
support whereby both vertical and lateral rigidity are imparted to
the shelving. These features are provided without sacrifice of the
external appearance of the shelving no matter which combination of
uniform or intermittent wall spacing is used.
* * * * *