发明名称 |
CENTER COLUMN FRICTION CONTROL SYSTEM FOR VIDEO TRIPOD |
摘要 |
Smooth vertical movement of the center column of a tripod is assured by resilient sleeves fitted on the column and urged by a spring against stationary inclined inner surfaces which deflect end portions of the sleeves against the column to maintain continuous frictional resistance against movement of the column through the bore. |
申请公布号 |
CA2090533(A1) |
申请公布日期 |
1993.08.27 |
申请号 |
CA19932090533 |
申请日期 |
1993.02.26 |
申请人 |
VELBON INTERNATIONAL CORPORATION |
发明人 |
NAKATANI, KOICHIRO |
分类号 |
F16M11/28;(IPC1-7):F16M11/34 |
主分类号 |
F16M11/28 |
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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