Title:
BRAKE SYSTEM FOR TRANSMISSION
Document Type and Number:
Japanese Patent JP2015045347
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a brake system for a transmission constituted to comprise a first piston and a second piston for recording a zero clearance state thereby to prevent the relative positions of the first piston and the second piston from changing in their relative positions when disengaging the brake.SOLUTION: A brake system (an L-R brake 60) of a transmission comprises a first piston (or a clearance adjusting piston), a second piston (or a pressing piston), and a hydraulic circuit. The hydraulic circuit is disposed in drain passages 125, 126 and 127 communicating with a second hydraulic chamber (or an A chamber 61), and includes pressure holding means (or a pressure holding valve 128) constituted to hold the oil pressure of the second hydraulic chamber, when a multi-disc brake is released, at a pressure to keep invariable the relative positions of the first piston and the second piston.
Inventors:
SAJI TSUNESHIRO
KAMATA SHINYA
NAGAI SHOTARO
SASAKI MASATOMO
KUBO TOMOHIRO
SASAHARA MANABU
TSUCHITORI YUKI
KAMATA SHINYA
NAGAI SHOTARO
SASAKI MASATOMO
KUBO TOMOHIRO
SASAHARA MANABU
TSUCHITORI YUKI
Application Number:
JP2013175282A
Publication Date:
March 12, 2015
Filing Date:
August 27, 2013
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F16H61/00; F16H61/686
Domestic Patent References:
| JPH09112690A | 1997-05-02 | |||
| JP2013155814A | 2013-08-15 | |||
| JPS6026357U | 1985-02-22 | |||
| JP2005265063A | 2005-09-29 | |||
| JPS62850U | 1987-01-07 |
Attorney, Agent or Firm:
Patent business corporation MAEDA PATENT OFFICE
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