发明名称 |
Mast safety restraint mechanism |
摘要 |
Described herein is a safety restraint mechanism for a mast assembly. The safety restraint mechanism comprises a tension line attached to a lever and a winch mechanism such that operation of the winch mechanism translates a carriage assembly along the mast. A cam brake including an engagement profile at a first end thereon is pivotally attached to the lever at a second end. The cam brake is also pivotally attached to the carriage assembly such that the engagement profile pivots into a brake position or a free lift position relative to a tension force acting on the lever. The lever is pivotally attached to the second end and includes a kickstand. The engagement profile having a protruded portion to abut the tubes in a brake position and a relief portion to space the cam brake from the tubes in a free lift position. |
申请公布号 |
AU2013252842(A1) |
申请公布日期 |
2014.11.13 |
申请号 |
AU20130252842 |
申请日期 |
2013.03.21 |
申请人 |
THE WILL-BURT COMPANY |
发明人 |
VANDEGRIFT, DARRELL K.;ARNOLD, JAMES S. |
分类号 |
F16M11/04;E04H12/20;H01Q1/12 |
主分类号 |
F16M11/04 |
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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