Brakes – To retard rolling of caster
Patent
1992-04-03
1993-08-03
Oberleitner, Robert J.
Brakes
To retard rolling of caster
188 69, 16 35R, B60B 3300
Patent
active
052320715
ABSTRACT:
A single wheel-type caster includes a frame having a body portion and a pair of parallel side walls extending downwardly from the body portion. A wheel is disposed between and rotatably supported on the pair of side walls of the frame. A mechanism for locking the wheel includes a group of engagement portions which are provided at the wheel, and are arranged on a circle having its center aligned with the axis of rotation of the wheel. This wheel lock mechanism further includes a push button and a slide member. The push button is disposed in opposed relation to the outer peripheral surface of the wheel, and is supported on the body portion of the frame so as to move radially of the wheel. The slide member has an engagement portion, and is supported on one of the side walls of the frame so as to slide radially of the wheel. The slide member is moved in response to the movement of the push button. When the engagement portion of the slide member is engaged with the engagement portion of the wheel, the wheel is locked.
REFERENCES:
patent: 3571842 (1971-03-01), Fricke
patent: 3772733 (1973-11-01), Strosberg et al.
patent: 4479566 (1984-10-01), Ishii et al.
patent: 5181587 (1993-01-01), Masatoshi
Ballato Josie A.
Oberleitner Robert J.
Sugatsune Kogyo Co. Ltd.
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