Damper mechanism with undulated ribbon-like spring having means

Details Damper mechanism with undulated ribbon-like spring having means Damper mechanism with undulated ribbon-like spring having means

1996-04-12

1998-09-08

Poon, Peter M.

Spring devices

Bendable along flat surface

Bow spring or superposed spring elements

464 24, 464 84, 464101, 267136, F16D 312, F16D 380

Patent

active

058034412

ABSTRACT:
To reduce a frictional resistance generated between undulated ribbon-like springs and outer circumferential walls, a flywheel assembly is composed of a first flywheel 1, a second flywheel 3 and ribbon-like springs 18. A fluid chamber 17 is formed between the second flywheel 3 and the first flywheel 1. The undulated ribbon-like spring 18 is disposed within the fluid chamber 17. In one embodiment, a projecting ring portion 20a that projects beyond the other ring portions 20 is provided so as to contact with an outer circumferential portion 7a of the fluid chamber 17 in order to prevent the remainder of the spring from contacting the portion 7a of the chamber 17. In another embodiment, a mid-portion of the undulated ribbon-like spring is confined to restrict radially outward movement by a plate and axially aligned pins which prevent radial movement of portions of the spring.

REFERENCES:
patent: 5562541 (1996-10-01), Fukushima
patent: 5562543 (1996-10-01), Rohrle

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