Castor locking device with freely pivotable curved tongue engage

Details Castor locking device with freely pivotable curved tongue engage Castor locking device with freely pivotable curved tongue engage

1996-02-26

1997-09-23

Howell, Daniel W.

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

Casters

Locked

280 35994, B60B 3302

Patent

active

056691009

ABSTRACT:
A device for arresting the swivelling movement of a castor. The device (2) is particularly useful for use on a shopping trolley (1). The device comprises support means (1) secured to the base of the trolley, and engagement means (11) adapted to pivot between first and second positions. In a first position, a tongue (11) is engaged between the arms (5) and (6) of the fork member (4) to prevent swivelling movement of the castor. In a second position, the tongue (11) is disengaged from between the arms (5) and (6) of the fork (4) to permit swivelling movement of the castor (3) relative to the base of the trolley (1).

REFERENCES:
patent: 2253824 (1941-08-01), Townsend et al.
patent: 3070828 (1963-01-01), Clinton et al.
patent: 3112121 (1963-11-01), Hummer
patent: 3142086 (1964-07-01), Thomas
patent: 4847945 (1989-07-01), Schwartz et al.
patent: 4922574 (1990-05-01), Heiligednthal et al.

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