Safety beam lock

Details Safety beam lock Safety beam lock

1988-06-06

1990-05-29

Chin-Shue, Alvin C.

Supports: racks

Knockdown

Vertically adjustable

211208, A47B 4700

Patent

active

049288342

ABSTRACT:
A safety lock for securing the end of a horizontal beam to a vertical post in a structural frame for wide span shelving. A tab on the end of the beam forces the side of an open box-shape post with slots in the side to yield during assembly of the beam to the post. When the tab enters a slot on the post side, the side springs back, locking the tab in the slot to prevent the dislodgment of the beam from the post.

REFERENCES:
patent: 1007843 (1911-11-01), Botsford
patent: 1154371 (1915-09-01), Carter
patent: 2200047 (1940-05-01), Tinnerman
patent: 2839805 (1958-06-01), Bedford, Jr.
patent: 2876515 (1959-03-01), Saffer
patent: 2887291 (1959-05-01), Holmquist
patent: 3177988 (1965-04-01), Costantini et al.
patent: 3510010 (1970-05-01), Gasner
patent: 3675958 (1972-07-01), Duffy
patent: 3770135 (1973-11-01), Schild
patent: 3871525 (1975-03-01), Al-Dabbagh et al.
patent: 4074812 (1978-02-01), Skubic et al.
patent: 4287994 (1981-09-01), Klein
Penco Bulletin W-87 "Wide Span Shelving" (see p. 4).

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