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Patent Searching and Data


Title:
VEHICLE BRAKE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/064343
Kind Code:
A1
Abstract:
The purpose of the present invention is to increase the braking capability and improve the reliability of a manually-operated brake in a vehicle brake system. A hydraulic fluid replenishment device (40) is provided between first accumulators (15F), (15R) of a manually-operated brake circuit (11) and a second accumulator (25) of an automatic brake circuit (24). The hydraulic fluid replenishment device (40) replenishes the first accumulators (15F), (15R) with hydraulic fluid stored in the second accumulator (25) when a manually-operated brake is being operated by an operator. This controls against slowdown in the rate of brake pressure increase when the manually-operated brake is in operation.

Inventors:
TANAKA Takaaki (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
IKARI Takanobu (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
TSURUGA Yasutaka (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
SATOU Takayuki (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
SASAKI Takashi (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
Application Number:
JP2017/034748
Publication Date:
April 04, 2019
Filing Date:
September 26, 2017
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (16-1, Higashiueno 2-chome Taito-k, Tokyo 15, 〒1100015, JP)
International Classes:
B60T7/02; B60T7/12; B60T13/68; B60T15/00
Foreign References:
JP2003503278A2003-01-28
JPH08268256A1996-10-15
JPH037653A1991-01-14
JP2014111407A2014-06-19
EP2724903A22014-04-30
Attorney, Agent or Firm:
HIROWA PATENT FIRM (4F. Nishishinjuku Koide Bldg, 1-3 Nishishinjuku 3-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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