Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1976-11-09
1981-09-22
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
185 37, 2421074R, B65H 7548
Patent
active
042905648
ABSTRACT:
This invention involves 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. In a preferred embodiment, the transmission comprises two rotatable cones, said cones being connected by means of a traction wire which is wound on the surfaces of said cones. One of the cones 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 will remain constant. The improvement is particularly useful in retractable safety belts to obtain a constant force in the belt strap during extension of the belt.
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
patent: 3997126 (1976-12-01), Karlsson
Jillions John M.
Philpitt Fred
LandOfFree
Spring-operated reversably 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 reversably rotatable body, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring-operated reversably rotatable body will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-331434