Title: Disc brake

Abstract: A disc brake includes a caliper defining a cylinder body therein, a first piston slidably and sealingly received in the cylinder body, an inner cylinder disposed within the first piston and a second piston slidably and sealingly received in the inner cylinder. The outer periphery of the first piston is in slidable and sealable contact with the inner periphery of the cylinder body and the outer periphery of the inner cylinder is in contact with the inner periphery of the first piston for slidable and sealable movement with the latter and defines a first hydraulic chamber. The outer periphery of the second piston is in slidable and sealable contact with the inner periphery of the inner cylinder and together with the inner cylinder, defines a second hydraulic chamber.

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Inventors: Karasudani, Yasuo (Yokohama, JP)

Application Number: 861448
Filing Date: 1977-12-16
Publication_date: 1979-07-17
Assignee: Tokico Ltd. (Kanagawa, JP)
Primary Class(es): 188/106P 188/71.8, 188/345
Other Classes:
US Patent Ref:

3312313	Apr, 1967	Moyer	188/106.
3421604	Jan, 1969	Hobbs	188/196.
3608678	Sep, 1971	Kobayashi	188/345.
3949846	Apr, 1976	Hayashida	188/106.

Other Refs:
Primary Examiner: Reger, Duane A.
Assistant Examiner:
Attorney: Wenderoth, Lind & Ponack