发明名称 |
Oil buffer for an elevator |
摘要 |
In an oil buffer for an elevator, at least one cylindrical intermediate plunger is inserted into a base cylinder. An upper-stage plunger is inserted into the intermediate plunger. An orifice is provided in a bottom surface portion of the upper-stage plunger. A pin rod is provided upright in the base cylinder. The pin rod is inserted into the orifice in a middle of a stroke of the upper-stage plunger. A return spring causes the intermediate plunger and the upper-stage plunger to return to positions in an unloaded state.
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申请公布号 |
US8360210(B2) |
申请公布日期 |
2013.01.29 |
申请号 |
US20070599700 |
申请日期 |
2007.08.31 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION;KIGAWA HIROSHI |
发明人 |
KIGAWA HIROSHI |
分类号 |
B66B5/28;B60G11/56;F16F9/48 |
主分类号 |
B66B5/28 |
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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