US2901205A - Shelf bracket having cam lock - Google Patents

Shelf bracket having cam lock Download PDF

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Publication number
US2901205A
US2901205A US649919A US64991957A US2901205A US 2901205 A US2901205 A US 2901205A US 649919 A US649919 A US 649919A US 64991957 A US64991957 A US 64991957A US 2901205 A US2901205 A US 2901205A
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Prior art keywords
bracket
hook
latch
support
cam
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Expired - Lifetime
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US649919A
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Otto N Gredell
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Standard Steel Works Inc
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Standard Steel Works Inc
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/30—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports
    • A47B57/54—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of clamping means, e.g. with sliding bolts or sliding wedges
    • A47B57/56—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of clamping means, e.g. with sliding bolts or sliding wedges the shelf supports being cantilever brackets

Definitions

  • This invention relates to shelving structure, and particularly, to a bracket and support assembly having novel means for releasably attaching the bracket to .the support at any desired point throughout the length of the sup port.
  • Another important object of the present invention is to provide means of attachment for the bracket to the support that positively and firmly hold the bracket against displacement by virtue of a biting action between a 'eutting edge of a latch or lock carried by the bracket and acting on the support.
  • a further object of the present invention is to provide shelving structure that includes a cam latch which progressively increases an interlocking fit between hooks formed on the support and the bracket, together with a progressively increased cut into thehook of the support as the latch is swung to one end of its path of travel.
  • a still further object :of the present invention is to provide shelving structure having a bracket which may be easily and quickly attached ton-the :support or standard hymovement of the bracket along a-substantially; straight horizontal line, thereby avoiding interferencewithgpreviously attached brackets, shelving ,ortother obstructions such as side walls, columns and the like.
  • Another important aim of the instant invention is the provision of shelving structure wherein a pair of brackets may be attached adjacent to one another without interference, each of which may additionally be shifted independently of the other.
  • Another aim of the instant invention is to utilize a cam lever type bracket wherein the holding power to prevent slippage does not depend upon the load carried by the shelf to clamp the same more firmly to its upright support.
  • Fig. 1 is a plan view of a shelf bracket having a cam lock made pursuant to the present invention, parts being broken away for clearness.
  • Fig. 2 is a fragmentary, side elevational view of the shelving structure shown in Fig. 1, parts being broken away and in section for clearness.
  • Fig. 3 is a fragmentary view showing the opposite side of the shelving structure.
  • Fig. 4 is an enlarged, fragmentary, cross-sectional view taken on line IV-IV of Fig. 2.
  • Fig. 5 is a cross-sectional view similar to Fig. 4 showing the cam latch released
  • Fig. 6 is a fragmentary, detailed, cross-sectional view taken on line VI--VI of Fig. 4.
  • the essential components of the shelving structure embodying the improvements of the instant invention include an upright standard .or support 10 and a shelfreceiving bracket 12, it being understood of course, that any number of vertically aligned brackets 12 may be attached to the standard 10 and that a plurality of horizontally aligned supports 10 each equipped with a number of brackets, may be employed to receive a plurality .of horizontal shelves.
  • bracket 12 includes a vertical web 14 having a laterally extending flange .or ledge 16 to which the shelf may be attached in any suitable manner such as through use of fasteners passing through openings (not shown) in the flange 16. Additional reinforcement for the web 14 is provided :by a lateral flange 18 at the lowermost edge thereof.
  • the standard 10 is especially formed for receiving the bracket 12 and may be made from channel stock, its transverse U-shaped configuration presenting a bight 20 and a pair of legs 22, each of which in turn is provided with a rearwardly-facing hook .24 extending vertically throughout the longitudinal length .of the standard 10.
  • each of the hooks 24 may receive a plurality of spaced, superimposed brackets '12, 'but it is of course, understood that the invention is not limited to a standard construction where- 'inmore than one of such hooks 24 is employed.
  • the legs 22 and their hooks 24 may be interconnected in other manners than by an integral bight or back portion 20 forming a part of the standard 10.
  • the reaimostend of the bracket '12 and particularly, the web "14 thereof, is also provided with a hook 26 extending throughout .the length of the rearmost end of the web '14 and substantially in the nature of the hooks 24.
  • the -hook '26 faces forwardly and complementally fits the books 24 in interlocking relationship for vertical sliding movement therealong .as is evident from Figs. 4 and :5 of the drawing. It is to be noted that the flanges 16 and 18 terminate short of the hook 26 'to accommodate the hook 2'4.
  • Bracket 12 is provided with means for releasably attaching the same to the standard 10 and to, therefore, hold the bracket .12 :against'vertical sliding movement in any selected position throughout the length of hook 24.
  • Such holding means is in the nature of a latch 28 taking the form of a cam lever swingably secured to the bracket 12 for movement to the positions illustrated in Figs. 4 and 5.
  • Latch 28 includes a pair of superimposed plates 30 and 32 interconnected in any suitable manner such as by spot-welding and journaled on a pivot pin 34 disposed vertically along one face of the web 14.
  • Pin 34 is carried by flange 18 and by ear 36 struck from the web 14 presenting a clearance opening 38 in the latter for the latch 28.
  • Arcuate cam means in the form of cutting edges eccentric to the pin 34 are presented at one end of the latch means 28 adjacent the hook 24 by spreading the plates 30 and 32 apart.
  • Such outwardly flared, arcuate ends of the plates 30 and 32 present the aforementioned arcuate cutting edges 40 and 42 which bite into and form serrations in the hook 24 when the latch lever 28 is swung to the position illustrated in Fig. 4.
  • hooks 24 and 26 are clamped together with progressively increased force, and the said serrations become progressively deeper in the hook 24 as the latch 28 is swung toward the web 14 to the position shown in Fig. 4.
  • each of the brackets 12 may be easily and quickly slipped into place by movement horizontally to a position where hook 26 may be interlocked with hook 24.
  • No tools of any nature are required to force the lever 28 to the position shown in Fig. 4 and in order to release the latch 28 for removal of the bracket 12 or readjustment of the same vertically along the standard 10, it is but necessayr at most to employ a screw driver or other prying instrument inserted between latch 28 and web 14, to initiate the swinging movement of latch 28 toward the position shown in Fig. 5.
  • cam lever lock or latch means 28 is adapted to cut lateral serrations into the hook 24, there is presented a firm clamping action which precludes any appreciable deflection of the bracket 12 with respect to the standard when a load is placed thereon.
  • any number of single plate or double plate latching levers may be provided on the web 14 throughout the vertical width of the rearmost end thereof, and manifestly, means other than pivot pin 34 may be provided for mounting the same to the bracket 12 for horizontal swinging movement.
  • mounting of the latch means 28 adjacent the rearmost end of the bracket 12 disposes the same in position for receiving the load and preventing sagging in the bracket 12 at the outermost free end of the latter as such load tends to pull the upper end of hook 26 into firm interlocking relationship with the hook 24.
  • bracket 12 By virtue of the outwardly flared, innermost end of the latch 23 presenting the spaced, arcuate cutting edges 40 and 42, cutting into the hook 24 in opposite directions, it is not possible for the bracket 12 to shift vertically in either direction along the hook 24 when the lever 28 is in the latched position shown in Fig. 4. Furthermore, the bracket 12 cannot swing horizontally or tilt in any direction because of the interlocking relationship of the hooks 24 and 26 and the way in which such interlocking is maintained by the action of cam edges 40 and 42 thereon.
  • Shelving structure comprising an upright support having a return bent portion forming a hook; a shelfreceiving bracket including a vertical web extending laterally from the support and having a return bent portion forming a hook at the rearmost edge thereof interlocked with the hook of the support for vertical sliding therealong; and latch means swingable horizontally on the web to and from a position engaging the hook of the support for holding the bracket in selected positions rela tive to the support.
  • siad latch means includes a pair of plates each having.
  • cam means thereon provided with a cutting edge.

Description

Aug. 25, 1959 O. 'N. GREDELL SHELF BRACKET HAVING CAM LOCK Filed April 1, 1957 INVENTOR. 0270 M Gredzfl Arr'omv United States Patent Offic 2,901,205 Patented Aug. 25, 1959 Steel Works, :Inc., North Kansas City, Mo., a corporation of Texas Application April 1, 1957, Serial No. 649,919
8 Claims. (Cl. 248-245) This invention relates to shelving structure, and particularly, to a bracket and support assembly having novel means for releasably attaching the bracket to .the support at any desired point throughout the length of the sup port.
It is the most important object of the present invention to provide shelving structure of the aforementioned nature adapted to permit assembly and adjustment substantially without the use of any tools whatsoever.
Another important object of the present invention is to provide means of attachment for the bracket to the support that positively and firmly hold the bracket against displacement by virtue of a biting action between a 'eutting edge of a latch or lock carried by the bracket and acting on the support.
A further object of the present invention is to provide shelving structure that includes a cam latch which progressively increases an interlocking fit between hooks formed on the support and the bracket, together with a progressively increased cut into thehook of the support as the latch is swung to one end of its path of travel.
A still further object :of the present invention is to provide shelving structure having a bracket which may be easily and quickly attached ton-the :support or standard hymovement of the bracket along a-substantially; straight horizontal line, thereby avoiding interferencewithgpreviously attached brackets, shelving ,ortother obstructions such as side walls, columns and the like.
Another important aim of the instant invention is the provision of shelving structure wherein a pair of brackets may be attached adjacent to one another without interference, each of which may additionally be shifted independently of the other.
Another aim of the instant invention is to utilize a cam lever type bracket wherein the holding power to prevent slippage does not depend upon the load carried by the shelf to clamp the same more firmly to its upright support.
Other objects include important details of construction to be made clear or become apparent as the following specification progresses.
In the drawing:
Fig. 1 is a plan view of a shelf bracket having a cam lock made pursuant to the present invention, parts being broken away for clearness.
Fig. 2 is a fragmentary, side elevational view of the shelving structure shown in Fig. 1, parts being broken away and in section for clearness.
Fig. 3 is a fragmentary view showing the opposite side of the shelving structure.
Fig. 4 is an enlarged, fragmentary, cross-sectional view taken on line IV-IV of Fig. 2.
Fig. 5 is a cross-sectional view similar to Fig. 4 showing the cam latch released; and
Fig. 6 is a fragmentary, detailed, cross-sectional view taken on line VI--VI of Fig. 4.
The essential components of the shelving structure embodying the improvements of the instant invention include an upright standard .or support 10 and a shelfreceiving bracket 12, it being understood of course, that any number of vertically aligned brackets 12 may be attached to the standard 10 and that a plurality of horizontally aligned supports 10 each equipped with a number of brackets, may be employed to receive a plurality .of horizontal shelves.
To this end, bracket 12 includes a vertical web 14 having a laterally extending flange .or ledge 16 to which the shelf may be attached in any suitable manner such as through use of fasteners passing through openings (not shown) in the flange 16. Additional reinforcement for the web 14 is provided :by a lateral flange 18 at the lowermost edge thereof.
The standard 10 is especially formed for receiving the bracket 12 and may be made from channel stock, its transverse U-shaped configuration presenting a bight 20 and a pair of legs 22, each of which in turn is provided with a rearwardly-facing hook .24 extending vertically throughout the longitudinal length .of the standard 10. By virtue of such construction therefore, each of the hooks 24 may receive a plurality of spaced, superimposed brackets '12, 'but it is of course, understood that the invention is not limited to a standard construction where- 'inmore than one of such hooks 24 is employed. Furthermore, the legs 22 and their hooks 24 may be interconnected in other manners than by an integral bight or back portion 20 forming a part of the standard 10.
The reaimostend of the bracket '12 and particularly, the web "14 thereof, is also provided with a hook 26 extending throughout .the length of the rearmost end of the web '14 and substantially in the nature of the hooks 24. The -hook '26 faces forwardly and complementally fits the books 24 in interlocking relationship for vertical sliding movement therealong .as is evident from Figs. 4 and :5 of the drawing. It is to be noted that the flanges 16 and 18 terminate short of the hook 26 'to accommodate the hook 2'4.
Bracket 12 is provided with means for releasably attaching the same to the standard 10 and to, therefore, hold the bracket .12 :against'vertical sliding movement in any selected position throughout the length of hook 24. Such holding means is in the nature of a latch 28 taking the form of a cam lever swingably secured to the bracket 12 for movement to the positions illustrated in Figs. 4 and 5.
Latch 28 includes a pair of superimposed plates 30 and 32 interconnected in any suitable manner such as by spot-welding and journaled on a pivot pin 34 disposed vertically along one face of the web 14. Pin 34 is carried by flange 18 and by ear 36 struck from the web 14 presenting a clearance opening 38 in the latter for the latch 28.
Arcuate cam means in the form of cutting edges eccentric to the pin 34, are presented at one end of the latch means 28 adjacent the hook 24 by spreading the plates 30 and 32 apart. Such outwardly flared, arcuate ends of the plates 30 and 32, present the aforementioned arcuate cutting edges 40 and 42 which bite into and form serrations in the hook 24 when the latch lever 28 is swung to the position illustrated in Fig. 4. By virtue of the eccentricity of the edges 40 and 42 to the vertical axis of swinging movement of the latch lever 28 about the pin 34, hooks 24 and 26 are clamped together with progressively increased force, and the said serrations become progressively deeper in the hook 24 as the latch 28 is swung toward the web 14 to the position shown in Fig. 4.
It is now apparent that once the standard 10 is erected, each of the brackets 12 may be easily and quickly slipped into place by movement horizontally to a position where hook 26 may be interlocked with hook 24. No tools of any nature are required to force the lever 28 to the position shown in Fig. 4 and in order to release the latch 28 for removal of the bracket 12 or readjustment of the same vertically along the standard 10, it is but necessayr at most to employ a screw driver or other prying instrument inserted between latch 28 and web 14, to initiate the swinging movement of latch 28 toward the position shown in Fig. 5.
Other shelving, walls, columns and the like adjacent the tsandard 10, will not interfere with either the attachment and removal of the bracket 12 or adjustment thereof. By the same token, the presence of a number of brackets attached to one of the hooks 24, will not in any way interfere with attachment of another series of brackets 12 to the other hook 24.
By virtue of the fact that the cam lever lock or latch means 28 is adapted to cut lateral serrations into the hook 24, there is presented a firm clamping action which precludes any appreciable deflection of the bracket 12 with respect to the standard when a load is placed thereon.
Manifestly, any number of single plate or double plate latching levers may be provided on the web 14 throughout the vertical width of the rearmost end thereof, and manifestly, means other than pivot pin 34 may be provided for mounting the same to the bracket 12 for horizontal swinging movement. However, mounting of the latch means 28 adjacent the rearmost end of the bracket 12 disposes the same in position for receiving the load and preventing sagging in the bracket 12 at the outermost free end of the latter as such load tends to pull the upper end of hook 26 into firm interlocking relationship with the hook 24.
By virtue of the outwardly flared, innermost end of the latch 23 presenting the spaced, arcuate cutting edges 40 and 42, cutting into the hook 24 in opposite directions, it is not possible for the bracket 12 to shift vertically in either direction along the hook 24 when the lever 28 is in the latched position shown in Fig. 4. Furthermore, the bracket 12 cannot swing horizontally or tilt in any direction because of the interlocking relationship of the hooks 24 and 26 and the way in which such interlocking is maintained by the action of cam edges 40 and 42 thereon.
Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:
1. Shelving structure comprising an upright support having a return bent portion forming a hook; a shelfreceiving bracket including a vertical web extending laterally from the support and having a return bent portion forming a hook at the rearmost edge thereof interlocked with the hook of the support for vertical sliding therealong; and latch means swingable horizontally on the web to and from a position engaging the hook of the support for holding the bracket in selected positions rela tive to the support.
2. Shelving structure as set forth in claim 1 wherein said latch means is provided with cam means engageable with the book of the support for clamping the book of the bracket progressively tighter to the book of the support as the latch means is swung toward one end of its path of travel.
3. Shelving structure as set forth in claim 2 wherein said cam means has an arcuate cutting edge eccentric to the axis of swinging movement of the latch means and biting into the hook of the support when the latch means is swung to said one end of its path of travel.
4. Shelving structure as set forth in claim 3 wherein said web has a clearance opening for said latch means adjacent the hooks.
5. Shelving structure as set forth in claim 2 wherein said cam means has a pair of spaced, arcuate cutting edges eccentric to the axis of swinging movement of the latch means and biting into the hook of the support when the latch means is swung to said one end of its path of travel.
6. Shelving structure as set forth in claim 5 wherein siad latch means includes a pair of plates each having.
cam means thereon provided with a cutting edge.
7. Shelving structure as set forth in claim 6 wherein cam means are flared laterally in opposite directions.
8. Shelving structure as set forth in claim 7 wherein said plates are interconnected.
References Cited in the file of this patent UNITED STATES PATENTS 756,648 Kade Apr. 4, 1904 1,831,550 Vanderveld Nov. 10, 1931 2,605,551 Ames Aug. 5, 1952 2,645,325 Petit July 14, 1953 2,674,431 Attwood Apr. 6, 1954
US649919A 1957-04-01 1957-04-01 Shelf bracket having cam lock Expired - Lifetime US2901205A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356328A (en) * 1966-03-21 1967-12-05 Helmuth H Sachau Shelf supports
US3400831A (en) * 1965-07-12 1968-09-10 Niet Johan Marie Daniel De Brackets
FR2501984A1 (en) * 1981-03-20 1982-09-24 Illinois Tool Works
US4535705A (en) * 1983-08-11 1985-08-20 Eldon Industries, Inc. Systems in which one or more objects are supported by vertical standards
US4919282A (en) * 1987-05-13 1990-04-24 Duff Terry L Movable gondola shelving with hidden shelf adjustment mechanism
US20090230069A1 (en) * 2008-03-14 2009-09-17 Naden Mark C Multi-tiered rotating shelf system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US756648A (en) * 1903-10-10 1904-04-05 Arthur F Winter Bracket.
US1831550A (en) * 1930-02-17 1931-11-10 Grand Rapids Store Equip Co Bracket
US2605551A (en) * 1951-04-11 1952-08-05 Ames Co B C Opposed contact distance measure
US2645325A (en) * 1950-07-14 1953-07-14 Laurence A Petit Mounting means for manifold machine carbon paper
US2674431A (en) * 1950-11-20 1954-04-06 Charles W Attwood Shelf support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US756648A (en) * 1903-10-10 1904-04-05 Arthur F Winter Bracket.
US1831550A (en) * 1930-02-17 1931-11-10 Grand Rapids Store Equip Co Bracket
US2645325A (en) * 1950-07-14 1953-07-14 Laurence A Petit Mounting means for manifold machine carbon paper
US2674431A (en) * 1950-11-20 1954-04-06 Charles W Attwood Shelf support
US2605551A (en) * 1951-04-11 1952-08-05 Ames Co B C Opposed contact distance measure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400831A (en) * 1965-07-12 1968-09-10 Niet Johan Marie Daniel De Brackets
US3356328A (en) * 1966-03-21 1967-12-05 Helmuth H Sachau Shelf supports
FR2501984A1 (en) * 1981-03-20 1982-09-24 Illinois Tool Works
US4373694A (en) * 1981-03-20 1983-02-15 Illinois Tool Works Inc. Adjustable shelf support
US4535705A (en) * 1983-08-11 1985-08-20 Eldon Industries, Inc. Systems in which one or more objects are supported by vertical standards
US4919282A (en) * 1987-05-13 1990-04-24 Duff Terry L Movable gondola shelving with hidden shelf adjustment mechanism
US20090230069A1 (en) * 2008-03-14 2009-09-17 Naden Mark C Multi-tiered rotating shelf system

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