发明名称 |
TELESCOPIC SUPPORTING COLUMN AND FLOODLIGHT USING THE SAME |
摘要 |
A telescopic supporting column and a floodlight using the same with enhanced maneuverability. The telescopic supporting column includes a mast that is made telescopic by inserting two or more tubular columns sequentially in a nested manner; and a braking mechanism for moderately retracting said mast. The braking mechanism includes a pressure-regulating portion provided in a proximal tubular column as a proximal end of said mast; a closing portion provided in a distal tubular column as a distal end thereof; and an air chamber formed inside said mast by partitioning off said portions. The pressure-regulating portion includes: first and second vent holes communicating said air chamber with an exterior; and a valving element closing said second vent hole in a manner capable of opening and closing said second vent hole only. |
申请公布号 |
EP2153124(B1) |
申请公布日期 |
2011.11.09 |
申请号 |
EP20070792143 |
申请日期 |
2007.08.01 |
申请人 |
LIGHT BOY CO., LTD. |
发明人 |
YOSHIMORI, NORIHITO;TAGUCHI, MASAYUKI;TANO, KENSUKE |
分类号 |
F21V21/22;F21Y101/00 |
主分类号 |
F21V21/22 |
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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