发明名称 |
Protective helmet with positioning knobs adjustable to the head size |
摘要 |
A protective helmet with a crown made of synthetic material comprises a fixing device with a strap and means for adjusting the head-band size. The wall of the crown is drilled in the direction of the thickness with a plurality of orifices for housing positioning knobs adjustable between a first adjustment position corresponding to a large head-band size, in which said knobs are inserted inside the orifices, and a second adjustment position corresponding to a small head-band size, in which said knobs are salient towards the inside of the crown, each positioning knob having gripping means accessible from outside the crown to press the internal bearing face of the knob directly against the user's head.
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申请公布号 |
US5765234(A) |
申请公布日期 |
1998.06.16 |
申请号 |
US19970826405 |
申请日期 |
1997.03.24 |
申请人 |
ZEDEL |
发明人 |
PETZL, PAUL;HEDE, JEAN-MARC |
分类号 |
A42B3/00;A42B3/12;A42B7/00;(IPC1-7):A42B3/04 |
主分类号 |
A42B3/00 |
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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