Horizontally supported planar surfaces – Plural related horizontal surfaces – Nested or stacked units
Patent
1982-03-08
1984-08-07
Lyddane, William E.
Horizontally supported planar surfaces
Plural related horizontal surfaces
Nested or stacked units
D 6478, D 6511, 211126, A47F 314
Patent
active
044636849
ABSTRACT:
A shelf unit includes a U-shaped frame having a pair of spaced legs connected by a bight. The frame comprises first and second L-shaped members, having cooperable coupling structures provided at the ends thereof for rigidly and releasably interconnecting the members together. The cooperating coupling structures prevent movement of the L-shaped members relative to each other, except angular movement between a use position in which the legs of the frame are substantially parallel and an assembly position in which the outer ends of the legs are adjacent each other. The members can be separated in the assembly position to disengage the coupling structures. A plurality of vertically spaced horizontal grooves are provided on the inner surfaces of the frame, and a planar shelf can be slidably received in each groove when the L-shaped members are in the use position, thereby preventing the legs of the frame from moving toward each other. The coupling structures each include a flange and a recess on one L-shaped member respectively cooperable with a recess and flange on the other member.
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Haase Charles A.
Klungle Mark C.
Winsche Martha J.
Aschenbrenner Peter A.
Haworth Inc.
Lyddane William E.
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