发明名称 |
LINEAR ACTUATOR |
摘要 |
<p>In a method for utilizing a wedge engagement mechanism as means for retaining an output shaft without requiring a large driving power, there is a need for preventing fatigue life of an actuator from being reduced as a result of stress at contacting portions of parts of wedge engagement portions of the wedge engagement mechanism becoming large. In a linear actuator that converts rotary motion of a drive unit for rotation to linear motion through a rotary motion-to-linear motion conversion mechanism, a one-way mechanism is disposed upstream of the rotary motion-to-linear motion conversion mechanism in a rotational drive path, to thereby inhibit, with a small wedge engagement force, the output shaft from being driven by an external force, achieving reduction in the stress at the contacting portions.</p> |
申请公布号 |
EP2354596(A1) |
申请公布日期 |
2011.08.10 |
申请号 |
EP20090824702 |
申请日期 |
2009.10.14 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD |
发明人 |
HAYAS,E ISAO;HIRAKU, KENJI;YAMASAKI, MASARU;OCHIAI, MASAMI |
分类号 |
F16D41/08;B66F3/08;B66F9/08;F16D41/066;F16H25/24 |
主分类号 |
F16D41/08 |
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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