Swivel caster assembly with releasable lock mechanism

Details Swivel caster assembly with releasable lock mechanism Swivel caster assembly with releasable lock mechanism

1997-05-23

2000-12-26

Mah, Chuck Y.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Locked

B60B 3300

Patent

active

061639249

ABSTRACT:
A swivel caster assembly is provided with a releasable locking mechanism which selectively locks the caster assembly against rotation. A leg bushing used to support the leg of an associated appliance such as a baby stroller is rotatably supported by a caster body. The caster body has an upwardly extending locking lug recess, a transverse access aperture passing through the recess, and a transverse axle aperture. A locking lug is slidably received within the recess, and is maneuvered to a fully extended locking position and a retracted unlocking position by an arm member pivotally secured to the caster body. Force transfer between the arm member and the lug is through a spring. A locking collar is secured to the leg bushing and has a downwardly opening notch for engaging the upper end of the locking lug when extended. A pair of detent bosses extend outwardly from the caster body and engage with detent apertures formed in the arm member.

REFERENCES:
patent: 2068160 (1937-01-01), Zeindler
patent: 2081594 (1937-05-01), McIntosh
patent: 3479681 (1969-11-01), Maslow
patent: 4773124 (1988-09-01), Nakao et al.
patent: 4897895 (1990-02-01), Wang
patent: 5237721 (1993-08-01), Andrisin, III
patent: 5351364 (1994-10-01), Zun
patent: 5509506 (1996-04-01), Jones

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