Supports – Stand – Understructure
Patent
1975-11-13
1978-04-25
Schultz, William H.
Supports
Stand
Understructure
403263, 403332, 403369, F16M 1116
Patent
active
040859169
ABSTRACT:
A releasable locking device comprising a first and a second member movable into and out of engagement with each other, and one or more latch elements arranged within an inner space defined by said members when engaged. The latch elements are freely movable in that space which includes an annular channel, under the influence of gravity between a first position in which they do not interfere with movement of said members into and out of engagement with each other, and a second position in which the latch element or elements block movement of said members out of engagement with each other. The said members preferably comprise a socket member having a recess and a tubular stud member receivable therein. Due to the fact that the latch elements are movable under the influence of gravity the position or orientation of the locking device determines whether the latch elements are in their locking or releasing position. The locking device may for example be used for releasably fastening the legs to a piece of furniture and is then preferably adapted so as to have the latch elements in their second or locking position when the piece of furniture is standing upright, whereas the latch elements may be moved to their first or releasing position so that the legs may be separated from the remaining part of the furniture, when the said piece of furniture is inverted to its up-side-down position.
REFERENCES:
patent: 2010292 (1935-08-01), Campbell
patent: 2322949 (1943-06-01), Lux
patent: 2469896 (1949-05-01), Schaef
patent: 2663584 (1953-12-01), Moran
patent: 2677813 (1954-05-01), Sharp
patent: 3215974 (1965-11-01), Wooding
patent: 3319209 (1967-05-01), Reyenga
patent: 3687092 (1972-08-01), Manning
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Schultz William H.
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