发明名称 |
Parking brake device of vehicle |
摘要 |
A hydraulic parking brake device is selectively switched between a braking state and a non-braking state. A braking force decreases as a pressure in the control oil chamber increases and increases as the pressure in the control oil chamber decreases. The device includes a discharged oil restrictor located in a discharge passage and an accumulator connected to the control oil chamber. The accumulator is capable of releasing hydraulic oil to the control oil chamber when the braking force is greater than that at the time when the parking brake device is switched from the non-braking state to the braking state and the braking force can further be increased during the braking state of the parking brake device. Thus, the parking brake device can gradually brake the vehicle from the running state. <IMAGE>
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申请公布号 |
EP1541438(A2) |
申请公布日期 |
2005.06.15 |
申请号 |
EP20040029158 |
申请日期 |
2004.12.09 |
申请人 |
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI;NISHINA INDUSTRIAL CO., LTD. |
发明人 |
GOTO, TETSUYA;ICHIKAWA, KEINOSUKE;MAEDA, YASUHIRO;HORIUCHI, HIROYUKI |
分类号 |
B60T13/22;B60T13/04;B60T13/10;B60T13/14;F16D65/22;(IPC1-7):B60T13/14;B60T7/02 |
主分类号 |
B60T13/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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