发明名称 |
Roller assembly for a lifting device for a personal-transportation vehicle |
摘要 |
A preferred embodiment of a roller assembly for a lifting device for a personal-transportation vehicle includes a shaft member for mounting on a lifting arm assembly of the lifting device and having an outer surface, and a roller member for supporting a lifting strap of the lifting device. The roller member has an inner surface defining a central passage for receiving the shaft and contacting the outer surface. The inner and outer surfaces have complementary profiles that permit a relative orientation of the roller member and the shaft member to change so that a weight vector acting through the lifting strap can remain substantially perpendicular to an axial centerline of the roller member.
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申请公布号 |
US7182319(B2) |
申请公布日期 |
2007.02.27 |
申请号 |
US20040873350 |
申请日期 |
2004.06.21 |
申请人 |
COOK TECHNOLOGIES, INC. |
发明人 |
PANZARELLA THOMAS A.;ELDON, III JAMES B.;MCCLANAHAN DAVID D. |
分类号 |
B66D3/04;A61G3/02;B66C23/48 |
主分类号 |
B66D3/04 |
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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