Shock absorbing castor

Details Shock absorbing castor Shock absorbing castor

1980-07-14

1982-03-16

Troutman, Doris L.

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

Casters

Spring supported

A47B 9100

Patent

active

043193811

ABSTRACT:
The forward castor wheels for wheelchairs are each provided with shock absorbing leaf springs concealed within the fork frame structure rotatably mounting the wheels. The normal swivel shaft rather than connecting directly to the fork frame passes through an enlarged opening in the upper portion of the frame and terminates in a cross member pivoted to the upper portions of the fork arms so that the fork frame and wheel can execute slight rocking movements relative to the swivel shaft. The leaf springs pass down inside the fork arms, the upper ends of the leaf springs being secured to the cross member and the lower ends bearing against inwardly directed projections on the inside of the fork arms to bias the fork relative to the swivel shaft. The leaf springs will absorb shocks experienced by the castor wheels such as occur when passing over cracks in sidewalks and the like to thereby greatly increase the riding comfort of the wheelchair.

REFERENCES:
patent: 2051627 (1936-08-01), Weinmann
patent: 2350624 (1944-06-01), McDaniel
patent: 2472686 (1949-06-01), Snyder

Affiliated with

Also associated with

Rating

Shock absorbing castor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shock absorbing castor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock absorbing castor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1636335