US 2932409 A
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Description (OCR text may contain errors)
April 12, 1960 w. G. WINEMAN, JR
METAL SHELVING 2 Sheets-Sheet 1 Filed Dec. 9, 1954 INVEN TOR.
il W/emw/Jjr ATTORNEYS United States Patent O METAL SHELVING Walter G. Wineman, Jr., Sebewaing, Mich. Application December 9, 1954, Serial No. 474,261
10 Claims. (Cl. 211--147) This invention relates to metal shelving and more particularly to what is known as commercial shelving, which is a rugged, rigid type having provision for a number of shelves which may be spaced adjustably thereon.
Among the various objects of the invention is the provision of a plurality of shelf frame units detachably connected end-to-end and from which any one unit can be detached and removed without displacement or removal of the adjacent units.
Another object of the invention resides in the provi sion of simple, practical and unique connecting means for securing the units in end-to-end aligned relation.
Still a further object is to provide a simple, rigid shelving unit formed of standard, pre-fabricated structural shapes and sections, and provide means for releasably connecting these units in abutting end-to-end relation.
A further object is to provide shelving units which are of rugged construction for holding either a single shelf or a plurality thereof and adapted for use in supporting both heavy and light parts used in factories and commercial buildings in general. a ..A further object still is to design simple, practical, easily operable, retractable locking means for securing the units together whereby a very quick assembly and a very quick demountability of the shelves from the corner posts and the adjacent shelf is provided.
With the above and other objectsin View, the present invention consists in the combination and arrangement of parts, hereinafter more fully described, illustrated in the accompanying drawings, and, more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportion, and
.in disassembled, unlocked relation.
Fig. 3 is a view similar to Fig. 2 showing the various parts in assembled relation preparatory to being locked; and
Fig. 4 is a view showing the parts in locked relation.
Fig. 5 is a schematic plan view showing a row of units arranged in end-to-end relation, the arrows indicating the direction in which the individual units are removable from the unit line.
Fig. 6 is a front elevational view showing one of the units.
Fig. 7 is a perspective view of the wedge plate.
Referring now more particularly to the drawings in which I have shown a shelf unit construction and the units arranged in end-to-end relation, and inasmuch as each unit is exactly the same, a description of one unit will sutfice for all.
Each of the shelf units comprises an end frame E including a pair of spaced apart corner posts 10 formed with opposed, laterally projecting flanges 11 to which vertically spaced, horizontally disposed cross members 12 are welded or otherwise secured. A plurality of keyhole shaped openings 14 are provided in the body of the posts 10 as shown the enlarged area being indicated at 14a and the restricted area at 14b, these keyhole shaped openings forming the connection and support for the shelf frames F in a manner to be presently described.
The horizontally disposed shelf frames F detachably connect the end frames E, each shelf frame comprising a pair of longitudinal channel-shaped members 15 connected by cross braces 16 and having a wedge plate 17 welded or otherwise secured to the one end of each of the members 15, and vertically spaced openings 18 and 19 are provided in said wedge plate, a similar opening 20 being also provided in the wedge plate and for a purpose to be presently described.
The exposed face of the plate 17 is angled at 1711 and a similar wedge plate 21 having one angled face 21a is disposed in facial contact with the angled face 17a of the plate 17, and this plate is formed with slotted openings 22 and 23 in alignment with the openings 18 and 19, and an opening 24 in alignment with opening 20 when the parts are in locked position, and I Wish to direct particular attention to the fact that the wedge plate 21 is vertically movable with relation to the plate 17 when the members are in unlocked position and the angled faces are oppositely disposed to afford clearance between the shelf support and the end frames when the plate 21 is moved downwardly with relation to the plate 17. An end plate 25 is secured on the opposite ends of the members 15 and inverted keyhole slots 26 are provided therein as shown.
Lock pins 27 are welded to a horizontally movable backing plate 28, said pins being accommodated in'openings 18 and 19 provided in the wedge plate-17, thence projecting through slotted openings 22 and23 provided in the companion Wedge'plate =21, thence extending through the keyhole openings 14 in the corner posts 10, and thence through openings 26 in the end. plates 25, the ends of the locking pins being headed as at 29:. A relatively short locking pin P is also mounted in the locking plate 28, the free end of said pin being accommodated in the opening 24 after the wedge plate 21 has been forced upwardly to bring the pin into alignment with said openings and the backing plate moved horizontally to position shown in Fig. 3, thus locking the plate 21 in raised position. The heads of pins 27 are of a size to permit passage through the enlarged portions of the keyholeslots 14 and 26, and thence serve, when the parts are-forced to locked position, to lock the parts in assembled relation as indicated in Fig. 4 of the drawings.
It will be noted that the keyhole slots 26 in the end plates 25 are disposed opposite to the slots 14in the corner posts 10 to permit the necessary relative vertical movement when the units are being disassembled and also to hold them tightly in assembled relation when assembled. 1 7
With the members in positionshown in Fig. 2 of the drawings, the workman first brings them 'to assembled relation shown in Fig. 3 forcing the wedge plate 21 upwardly and then threading the free ends of the lock pins through the keyhole slots 14 and 26, and it will be noted that the end of the member 15 of the adjacent unit is higher than the end of the member on which the backing plate is mounted (see Fig. 3 of the drawings); the members 15 and 25 are then forced downwardly so that the headed ends 29 of the lock pins 27 enter and seat in the restricted portions 14b and 26b of the keyhole slots, rigidly locking the members in assembled relation.
Should it be desired to relocate any one or more of these individual assembled units, they can be removed from the unit line in direction as clearly indicated in Fig. 5 of the drawings. To remove, it is just necessary to first raise the shelf frame 15 and 25 to release the heads 29 of the pins 27 into the enlarged port-ions 14a and 26a of the keyhole slots, the backing plate 28 with pins 27 and P is then retracted or shifted horizontally to release wedge plate 21, and this plate is then shifted downwardly to provide necessary horizontal clearance so that the unit can be-moved outwardly as indicated by the arrows in Fig. 5 of the drawings.
From the foregoing description, it will be obvious that I have perfected a very simple, practical and rigid shelf unit which can be readily set up and assembled, in which a plurality of units may be placed in a line in end-to-end relation, and from which one or more of said units can be removed without disassembling the remaining units in the line.
What I claim is:
1. A shelving structure comprising a plurality of units rcleasably secured in end-to-end relation, each unit including an end frame having connected corner posts with keyhole slots therein, a shelf frame secured thereto, a stationary wedge plate with openings secured to one end of the shelf frame, a companion vertically movable wedge plate with vertical slots in facial contact with said stationary plate, an end plate having keyhole slots on the shelf frame of the adjacent unit, and horizontally movable locking pins mounted on said first shelf frame and extending through the openings or slots in said movable wedge plate, post, and end plate, the free ends of said pins being headed for tightly securing the members in assembled relation.
2. The combination defined in claim 1 in which keyhole slots are provided in the end plate and disposed opposite to the keyhole slots in the corner posts to permit raising of the shelf frame to bring the enlarged portions of the keyhole slot into alignment to permit horizontal retraction of the locking pins from said end plate and corner posts.
3. The structure defined in claim 1 in which the angled faces of the wedge plates are in facial contact and the movable plate is provided with slotted openings to permit vertical movement of said plate with relation to the shelf frame.
4. A shelving structure comprising; longitudinally spaced posts, a longitudinally extending shelf for releasable connection between said posts; means carried by said shelf including a movable part adjustable to connect said structure to an adjacent shelving structure, and means for locking said means in adjusted position and securing said shelf in position between said posts.
' 5. The combination defined in claim 4 in which said means carried by said shelf comprises a pair of opposed wedge plates in facial contact, at least one of which is movable in a plane transverse to the length of said shelf and releasably connect an adjacent shelving structure thereto.
6. A shelving structure comprising; longitudinally spaced posts; a longitudinally extending shelf frame for releasable connection between said posts; means carried by said shelf frame including a movable part adjustable to connect said structure to an adjacent shelving structure to permit wedging of the shelf frame between the posts, means incorporated with the shelf frame and movable longitudinally having a part locking said adjustable means in adjusted position and another member releasably locking with one of said posts for securing said shelf frame to said post.
7. The combination defined in claim 6 in which said adjustable means comprises relatively movable wedges having faces in opposed contact, and said part comprises a pin movable longitudinally which enters openings in both wedges and holds them in a particular relative positio'n.
8. A shelving structure comprising; spaced end frames including connected posts having vertically spaced, slotted openings therein, shelf frames having end plates releasably connected to said end frames, opposed wedge means having openings therein interposed between said end frame and each corner post, horizontally movable retractable locking pins mounted on one shelf frame and extending through said openings in said wedge means and slots in said corner posts, and lockingly engageable with the end plates of an adjacent shelf frame, the wedge means comprising a wedge plate rigidly secured to the end of one shelf frame, and a companion vertically movable Wedge plate interposed between the first wedge plate and the corner posts and mounted on said locking pins.
9. A shelving structure comprising; spaced end frames including connected posts having vertically spaced, slotted openings therein; shelf frames releasably connected to said end frames; wedge means interposed between said shelf frame and each corner post; retractable locking pins mounted on each shelf frame and extending through slots or openings in said Wedge means and slots in said corner posts, and lockingly engageable with the adjacent shelf frame; the posts being formed with oppositely disposed flanges; and an end plate connected to the opposite ends of each shelf frame, and having keyhole slots therein disposed reversely from the slots in the corner posts for locking engagement with the locking pins in the adjacent shelf frame.
10. In a shelving structure comprising, spaced end frames including connected posts with vertically spaced slots therein, horizontally disposed shelf frames releasably secured to said end frames, each shelf frame having an end plate on one end, said plate having a keyhole opening therein, the other ends having opposed wedge plates with slo'tted openings therein in facial contact, with one of said wedge plates being vertically movable with relation to the other, a horizontally retractable backing plate mounted on one of the wedge plates, and provided with locking pins extending through the slotted openings in the movable wedge plate, posts, and end plate of the adjacent unit for locking the members in assembled relation.
References Cited in the file of this patent UNITED STATES PATENTS 918,039 Grundmann Apr. 13, 1909 950,989 Bowser Mar. 1, 1910 963,129 Fleldman July 5, 1910 1,288,010 Isaac Dec. 17, 1918 1,715,983 Brandt June 4, 1929 1,871,972 Fernstermaker Aug. 16, 1932 2,266,274 Schroeder Dec. 16, 1941 2,633,247 Young Mar. 31, 1953 2,639,043 Dunham May 19, 1953 2,675,287 Sitler Apr. l3, 1954 a. main..-