Hold-down leaf spring for the brake lining backplate of a disc b

Details Hold-down leaf spring for the brake lining backplate of a disc b Hold-down leaf spring for the brake lining backplate of a disc b

1987-05-26

1988-09-27

Butler, Douglas C.

Brakes

Wheel

Axially movable brake element or housing therefor

188 731, 188250R, 267158, 267 47, F16D 6502

Patent

active

047735112

ABSTRACT:
A leaf spring (76) for holding down the pad backplate (72) and the pressure distributor plate, if any, in the pad opening of a disc brake at one side rests on a movable frame (12) of the brake and at the other side pressurizes the lining backplate and the pressure distributor plate, if any. The leaf spring (76) is designed such that, in relaxed condition, it has an arched center portion (106) which is followed at either end by an at least approximately straight side portion (108,108') the end portions (84,84') of which are fixed at the lining backplate and pressure distributor plate, respectively, in the direction of extension of the leaf spring. This is to assure reliable hold-down even at great accelerations in spite of the fact that the brake linings remain easy to be applied and released. Such a leaf spring provides a favorable hold-down characteristic for the lining backplate and the pressure distributor plate without impeding the venting of the brake.

REFERENCES:
patent: 4049087 (1977-09-01), Heinz et al.
patent: 4055238 (1977-10-01), Haraikawa et al.
patent: 4061209 (1977-12-01), Gee et al.
patent: 4576257 (1986-03-01), Carre et al.
patent: 4577731 (1986-03-01), Burgdorf et al.

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