Spring operated, reversibly rotatable body

Details Spring operated, reversibly rotatable body Spring operated, reversibly rotatable body

1974-10-24

1976-12-14

Gilreath, Stanley N.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

185 3T, 2421074R, B65H 7548

Patent

active

039971260

ABSTRACT:
An improvement of a spring operated, reversibly rotatable body having a surface on which a flexible, elongated object, e.g. a wire or a band, can be wound, said body being connected with a spring which is stretched by the rotation of the body during the unwinding of said elongated object. The improvement includes a transmission between the elongated object and the spring, said transmission having a gearing ratio which is varied during the rotation of the body. The variable gearing ratio can be obtained by giving the surface of the rotatable body, along the axis of rotation, a varying distance to the axis of rotation. In a preferred embodiment, two rotatable bodies, are used, said bodies being connected by means of a traction wire which is wound on the surfaces of said bodies. One of the bodies is connected with the spring and the other with an output shaft.
The aim of the improvement is to provide a means by which the tractive force caused by said spring in the elongated object during the rotation of said body can be varied as desired. The improvement is particularly useful in retractable safety belts to obtain a very low tractive force in the belt strap when almost fully extracted.

REFERENCES:
patent: 59689 (1866-11-01), Weed
patent: 924669 (1909-06-01), Johnson
patent: 2923491 (1960-02-01), Fischer et al.
patent: 3294446 (1966-12-01), Fontaine

Affiliated with

Also associated with

Rating

Spring operated, reversibly rotatable body does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring operated, reversibly rotatable body, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring operated, reversibly rotatable body will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1340822