Information
-
Patent Grant
-
6497033
-
Patent Number
6,497,033
-
Date Filed
Tuesday, February 22, 200025 years ago
-
Date Issued
Tuesday, December 24, 200222 years ago
-
Inventors
-
-
Examiners
- Bryant; David P.
- Cozart; Jermie E.
Agents
- Faggetter; Ronald D.
- Wisner; Mark R.
-
CPC
-
US Classifications
Field of Search
US
- 029 8966
- 029 505
- 029 558
- 029 DIG 32
- 072 178
- 072 181
- 248 121
- 248 2248
- 211 192
- 211 191
-
International Classifications
-
Abstract
A shelving standard is fabricated from a single plate with portions of the plate folded back on themselves, preferably utilizing roll forming operations. This allows bores formed in the plate before roll forming to be aligned in pairs as through holes when portions of the plate are folded over on themselves. By forming one bore of a pair larger than another, the bore pair becomes a countersunk hole. Such a shelving standard may be screwed to a stud which has a gap therein so that a line of slots in the standard is aligned with the gap. The stud also has a transverse through hole supporting a cross-member. Wall panels are provided with clips which rest on the cross-member so that wall panels may be mounted without being screwed to the stud.
Description
FIELD OF THE INVENTION
This invention relates to a shelving standard, to a method of making a shelving standard and to a shelving system.
BACKGROUND OF THE INVENTION
Shelving assemblies are commonly used in a retail environment. An assembly typically comprises a pair of side-by-side vertically disposed slotted shelving standards with cantilever brackets hooked into the slots and shelves resting on pairs of brackets. The assembly is secured to a wall with screws which extend through bores in the standards.
Shelving standards are currently typically formed from three metal pieces: a rectangular plate with a medial line of slots stamped therein, and two L-shaped pieces spot welded to the plate on either side of the line of slots so as to result in a “Π”-shaped profile. After welding, bores are drilled through the standard where the L-shaped pieces join to the plate to provide screw holes to affix the standard to a wall. Often the bores are countersunk. Such a standard is of relatively expensive manufacture.
With a shelving standard having a “Π”-shaped profile, it is necessary to provide a gap in the wall behind the standard to accommodate the hooks of the brackets which extend through the slots of the standard. Additionally, to ensure a secure mount to a wall, it is preferable to screw a standard into a wall stud. To meet these criteria, in setting up a wall for supporting a shelving assembly, pairs of studs are erected with a small gap between them. Next, a shelving standard is screwed into a pair of adjacent studs such that the medial line of slots overlies the gap between the pair of studs. Now wall panels may be screwed to the studs such that a side edge of a wall panel abuts a depending leg of one of the L-shaped pieces of the shelving standard. Lastly, brackets may be hooked into slots in the shelving standard and shelves erected between brackets of adjacent shelving standards. Such a shelving standard system is relatively costly.
This invention seeks to overcome drawbacks of known methods of forming shelving standards and of known shelving standard systems.
SUMMARY OF THE INVENTION
The present invention fabricates a shelving standard from a single plate with portions of the plate folded back on themselves, preferably utilizing roll forming operations. This allows bores formed in the plate before roll forming to be aligned in pairs as through holes when portions of the plate are folded over on themselves. By forming one bore of a pair larger than another, the bore pair becomes a countersunk hole. Such a shelving standard may be screwed to a stud which has a gap therein so that a line of slots in the standard is aligned with the gap. The stud also has a transverse through hole supporting a cross-member. Wall panels are provided with clips which rest on the cross-member so that wall panels may be mounted without being screwed to the stud.
Accordingly, the present invention provides a method of making a shelving standard comprising: forming a medial line of longitudinal slots in a metal plate; roll forming said metal plate to fold said metal plate into a configuration suitable for use as a shelving standard.
According to another aspect of the invention, there is provided a shelving standard comprising: a web bent from a single plate so as to have a profile with a “Π” shape, said “Π” shape having a pair of legs and a pair of wings, each wing having a lower layer from which one of said legs depend and an upper layer overlying said lower layer; a plurality of slots in said web between said pair of legs; a plurality of bores in said upper layer of said each wing and a plurality of bores in said lower layer of said each wing, said bores in said upper layer aligned with said bores in said lower layer so as to form through holes in said each wing.
According to a further aspect of the invention, there is provided a shelving system, comprising: a wall stud having a wall with a gap or indentation; a shelving standard having a “Π”-shaped profile with a base and a pair of depending legs and a line of slots extending along said base between said legs; said base of said standard joined to said stud across said gap or indentation of said stud such that said slots are aligned with said gap or indentation.
BRIEF DESCRIPTION OF THE DRAWINGS
In the figures which illustrate the invention,
FIG. 1
is a perspective view of a shelving standard made in accordance with this invention,
FIG. 2
is a bottom view of
FIG. 1
,
FIG. 3
is a cross-sectional view along the lines
3
—
3
of
FIG. 2
,
FIG. 4
is a front view of a plate from which the shelving standard of
FIG. 1
is formed,
FIG. 5
is a side view of
FIG. 4
,
FIG. 6
is a side view of a plate partially folded into the shelving standard of
FIG. 1
,
FIG. 7
is a side view of the shelving standard of
FIG. 1
,
FIG. 8
is a cross-section view of a shelving standard made in accordance with another embodiment of this invention, and
FIG. 9
is a cross-sectional view of a shelving system utilizing the shelving standard of FIG.
1
.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referencing
FIGS. 1
to
3
, a shelving standard
10
comprises a web
12
formed from a metal plate with a profile generally shaped as the capital Greek letter “Π”. The web has a pair of legs
14
a
,
14
b
depending from a base
15
having a pair of wings
16
a
,
16
b
. Each wing
16
a
,
16
b
has a lower layer
18
a
,
18
b
from which a leg
14
a
,
14
b
depends and an upper layer
20
a
,
20
b
overlying the lower layer. A line of longitudinally elongated slots
22
extend in the base of the web between the legs
14
a
,
14
b.
Each of the upper
20
a
,
20
b
and lower
18
a
,
18
b
layers of wings
16
a,
16
b
have bores
24
u
and
241
, respectively. The bores
241
in the lower layer
18
a
,
18
b
of the wings have a larger diameter than the bores
24
u
in the upper layer
20
a
,
20
b
of the wings. Also, each bore
24
u
in the upper layer
20
a
,
20
b
of a wing is aligned with a bore
241
in the lower layer
18
a
,
18
b
of a wing so as to form through holes in each wing. It will be apparent that these through holes are countersunk holes due to bores
241
having a larger diameter than the bores
24
u.
As will be apparent to those skilled in the art, the slots
22
of shelving standard
10
are adapted to receive the hooks of cantilever brackets such that a shelving assembly may be made from shelving standards
10
with such brackets and suitable shelves. Optionally, the shelving standard may also be used with cantilever trees which hook to the standard and provide structure (typically knobs) to support wares (such as hangars carrying clothing).
Shelving standard
10
may be formed from the metal plate illustrated in FIG.
4
. Turning to
FIGS. 4 and 5
, a plain metal plate
30
may be provided with a medial line of slots
22
in a medial portion
33
of the plate by stamping or in any other convenient manner. At the same time, or in a subsequent operation, a plurality of first
32
f
and second
32
s
pairs of bores
24
i
,
24
o
may be formed in plate
30
, again by stamping, drilling, or in any other convenient manner. The outer bore
24
o
of each pair
32
f
,
32
s
of bores lies in a marginal portion
36
f
,
36
s
of the plate and the inner bore
241
of each pair of bores lies in an intermediate portion
38
f
,
38
s
of the plate. The intermediate portion
38
f
,
38
s
of the plate extends between the marginal portion
36
f
,
36
s
and the medial portion
33
of the plate. The outer bore
24
o
of each bore pair
32
f
,
32
s
has a larger diameter than the inner bore
24
i
of the pair.
To form shelving standard
10
(
FIG. 1
) from plate
30
, an outer strip
40
f
,
40
s
of each marginal portion
36
f
,
36
s
of the plate is first bent forwardly to make a right angle with the rest of the plate, as illustrated schematically in FIG.
6
. This bending may be accomplished with a series of roll forming operations. Next, each marginal portion
36
f
,
36
s
is bent backwardly, preferably by roll forming, so that an inner strip
44
f
,
44
s
of each marginal portion
36
f
,
36
s
underlies intermediate portion
28
f
,
38
s
, as illustrated in FIG.
7
. In the result, the outer strips
40
f
,
40
s
, have become legs
14
a
,
14
b
; the inner strips
44
f
,
44
s
have become the lower layers
18
a
,
18
b
of wings
16
a
,
16
b
; and the intermediate portions
38
f
,
38
s
have become the upper layers
20
a
,
20
b
of wings
16
a
,
16
b
. Additionally, bores
24
i
have become bores
241
and bores
24
o
have become bores
24
u.
FIG. 8
illustrates a modification wherein the lower bores
1241
have a truncated conical shape with at least the base of the conical shape having a larger diameter than the diameter of the upper bores
124
u.
In use, turning to
FIG. 9
, one or more C-shaped wall studs
50
may be erected in a wall frame structure. The studs
50
are oriented such that the gap
52
between legs
54
a
,
54
b
of the stud faces outwardly. A cross-bar
58
may be inserted through transversely aligned openings (not shown) in a stud
50
. Also, the base
15
of a shelving standard
10
may be placed against legs
54
a
,
54
b
and screws may be received in the through holes in the standard provided by bore pairs
241
,
24
u
(
FIG. 3
) and screwed into the legs
54
a
,
54
b
of the stud
50
. In this regard, the larger diameter of bore
241
allows the screw head to be countersunk. A wall panel
66
provided with a clip
68
may then be clipped to nross-bar
5
n
either side of legs
14
a
,
14
b
of the standard such that the edge of each wall panel abuts a leg
14
a
,
14
b
of the standard. Abutments
70
at the ends of cross-bar
58
help to support the wall panels. Next, the hooks of cantilever brackets or cantilever trees may be inserted in the elongated slots
22
(
FIG. 2
) in the standard with the gap
52
in the wall
55
of stud
50
permitting full insertion. In the case of cantilever brackets, shelves may be supported on such brackets of two side-by-side standards.
Optionally, the C-shaped stud may be modified so that a wall
56
of the stud opposite wall
55
has an indentation shown in phantom at
59
. With this modification, a shelving standard
10
may be screwed to wall
56
so tat legs
14
a
,
14
b
, of the standard are aligned with the indentation
59
. The indentation then accommodates full insertion of cantilever brackets or cantilever trees in the elongate slots
22
of the standard. Thus, with the modified stud, a standard
10
may be attached at either one of the two opposite walls
55
,
56
of the stud.
A suitable wall board clip and cross-bar system is more fully described in Canadian patent application no. 2,120,405 filed Mar. 31, 1994, the contents of which are incorporated herein by reference.
Other modifications will be apparent to those skilled in the art and, therefore, the invention is defined in the claims.
Claims
- 1. A method of making a shelving standard, comprising:providing a metal plate; forming a plurality of slots in a medial portion of said plate for receiving cantilever bracket hooks; forming a plurality of first pairs of bores in said plate, one of each first pair lying in a first marginal portion of said plate and another of each first pair lying in a first intermediate portion of said plate, said first intermediate portion extending between said medial portion and said first marginal portion; forming a plurality of second pairs of bores in said plate, one of each second pair lying in a second marginal portion of said plate, said second marginal portion opposite said first marginal portion, and another of each second pair lying in a second intermediate portion of said plate, said second intermediate portion extending between said medial portion and said second marginal portion; performing a series of roll forming operations to fold said first marginal portion of said plate over said first intermediate portion of said plate and said second marginal portion of said plate over said second intermediate portion of said plate such that bores of each pair of bores are aligned to provide a through hole.
- 2. The method of claim 1 wherein each bore forming step forms a given pair of bores so that one bore of said given pair of bores is larger than another bore of said given pair of bores.
- 3. The method of claim 1 wherein said forming a plurality of first pairs of bores forms a given pair of bores so that a bore of said given pair in said first marginal portion of said plate is larger than a bore of said given pair in said first intermediate portion of said plate.
- 4. The method of claim 3 wherein said forming a plurality of first pairs of bores forms said bore of said given pair in said first marginal portion of said plane so as to have a truncated cone shape.
- 5. The method of claim 1 wherein said slots are formed by stamping and said bores are formed by one of stamping and drilling.
- 6. The method of claim 1 wherein said performing a series of roll forming operations includes performing a second series of roll forming operations and further comprising:prior to performing said second series of roll forming operations, performing a first series of roll forming operations to fold an outer strip of said first marginal portion forwardly to make a right angle with a remainder of said first marginal portion and an outer strip of said second marginal portion forwardly to make a right angle with a remainder of said second marginal portion; and wherein said second series of roll forming operations folds said marginal portions backwardly.
- 7. A method of making a shelving standard, comprising:providing a metal plate; forming a plurality of slots in a medial portion of said plate for receiving cantilever bracket hooks; performing a first series of roll forming operations to fold an outer strip of a first marginal portion of said plate at a right angle to a remainder of said first marginal portion and an outer strip of a second marginal portion of said plate at a right angle to a remainder of said second marginal portion, said second marginal portion being opposite said first marginal portion; performing a second series of roll forming operations to fold said first marginal portion of said plate over a first intermediate portion of said plate which extends between said first marginal portion and said medial portion, and said second marginal portion of said plate over a second intermediate portion of said plate which extends between said second marginal portion and said medial portion, so that said first marginal portion outer strip and said second marginal portion outer strip are opposed on either side of said slots.
US Referenced Citations (14)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2120405 |
Oct 1995 |
CA |