发明名称 |
Joint between the lower portion and the main portion of a loading crane post and a method of providing such a joint |
摘要 |
An improved joint and method of providing such a joint between the upper and lower portions of a rotatably driven crane post, comprising a sleeve-shaped member formed internally with screw threads and provided at the lower end of the upper position, a pin provided at the upper part of the lower post portion and formed externally with screw threads matching the sleeve member threads, and a collar on the lower post portion below the pin against which collar the sleeve-shaped member is pressed upon screwing together of the lower and upper post portions to form said joint.
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申请公布号 |
US4170854(A) |
申请公布日期 |
1979.10.16 |
申请号 |
US19770860681 |
申请日期 |
1977.12.15 |
申请人 |
HIAB FOCO AKTIEBOLAG |
发明人 |
PALMCRANTZ, JAN B;RILBE, ULF C |
分类号 |
B66C23/16;B66C;B66C23/26;B66C23/36;B66C23/62;B66C23/84;E04H12/34;(IPC1-7):E04H12/34 |
主分类号 |
B66C23/16 |
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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