发明名称 |
Vibration damper for a drum brake |
摘要 |
In order to effectively damp the vibration of the drum of a drum brake, which is a main cause of brake squeals, a vibration detector and a vibrator are provided and operated separately from each other. The vibration damping control is carried out directly mechanically, or in a non-contact manner to improve durability of the device. A piezoelectric element, magnetic sensor or acceleration sensor is used to detect the vibration of the drum. The detected vibration is converted to an electric signal. After adjusting its phase and amplitude, the electric signal is converted to vibration force and outputted through a piezoelectric element or magnetic actuator as the vibrator to suppress brake squeals.
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申请公布号 |
US5960912(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19970870672 |
申请日期 |
1997.06.06 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
NISHIZAWA, YUKIO;SAKA, HIRONOBU |
分类号 |
F16F15/02;F16D27/00;F16D51/20;F16D65/00;F16D65/14;F16D65/22;F16D66/00;F16F15/00;F16F15/03;(IPC1-7):F16D66/00 |
主分类号 |
F16F15/02 |
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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