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US 2007/0199777 A1Published application
Drum brake
AssigneeAkebono Brake Industry Co., Ltd.
InventorHironori Akada
Life of this patent
Estimating the term…
Abstract
Faces of a rim portion 20b of a brake shoe 20 of a drum brake brought into contact with a backing plate 18 on a side of a wheel cylinder and on a side of an anchor are brought into contact with and supported by first ledge portions “b”, “c” formed at an upper face of the backing plate, and a face of the rim portion 20b of the brake shoe 20 formed substantially at a center position thereof and brought into contact with the backing plate 18 is brought into contact with and supported by a second ledge portion “a” formed at a lower face of a cut-to-rise portion 18a of the backing plate 18.
Claims3
A drum brake comprising:
- a backing plate;
- a brake shoe slidably supported on the backing plate;
- a return spring, wherein a spring force of the return spring acts to the brake shoe at a position of being offset from a center in a width direction of a rim portion of the brake shoe in a direction of being remote from the backing plate to an upper side;
- first ledge portions formed at an upper face of the backing plate, wherein faces of the rim portion of the brake shoe brought into contact with the backing plate on a side of a wheel cylinder and on a side of an anchor are brought into contact with and supported by the first ledge portions;
- and
- a second ledge portion formed at a lower face of a cut-to-rise portion of the backing plate, wherein a face of the rim portion of the brake shoe brought into contact with the backing plate formed substantially at a center position is brought into contact with and supported by the second ledge portion.
3 more elements
Dependencies are inferred from the claim text.