Holding mechanism for foldable side rails

Details Holding mechanism for foldable side rails Holding mechanism for foldable side rails

2010-07-09

2011-10-25

Santos, Robert G (Department: 3673)

Beds

Having safety device

Side guard

C005S428000

Reexamination Certificate

active

08042207

ABSTRACT:
The conventional holding mechanism for foldable side rails have such problems that the release lever can be accidentally pressed for release action and that if a double lock is employed for preventing it, automatic holding action cannot be performed.This invention proposes a holding mechanism for foldable side rails, characterized in that the holding mechanism4is provided at an end of an upper horizontal rail member1uand comprises a mechanism support member5connected with the stanchion member provided at said end; the mechanism support member5has a stopper pin set12capable of advancing and receding; the stopper pin set12is biased in the advancing direction by a spring13; the stanchion member has a fitting hole10allowing the stopper pin set12to be fitted in it when the stanchion member is kept erect; the mechanism support member further has a release lever6engaged with a mechanically driven trigger site15provided in connection with the stopper pin set for making the stopper pin set recede against the force of the spring; a play mechanism is provided between the release lever and the mechanically driven trigger site; and the mechanism support member further has a release prevention mechanism for preventing the movement of the release lever in the release allowing direction.

REFERENCES:
patent: 5052461 (1991-10-01), Stern
patent: 5123687 (1992-06-01), Pfeiffer et al.
patent: 11-104187 (1999-04-01), None
patent: 3029026 (2000-02-01), None
Office Action dated Jun. 25, 2009 from U.S. Appl. No. 12/013,609.

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