发明名称 |
ELECTRIC DROP BOLT WITH SLIDABLE DRIVE MECHANISM |
摘要 |
<p>There is an electric motor driven drop bolt having a housing which in use is mounted into a doorway frame and has the bolt pivotal therein by a mechanical drive set in a cage disposed at an operative position. The bolt is pivotal between a locking configuration where the bolt extends outward of the housing to engage in an aperture associated with a door within the frame and an unlocked configuration where the bolt is withdrawn to clear the aperture. The mechanical drive includes a screw shaft rotatable by the electric motor to move a roller nut along the length of the shaft whilst engaging a cam surface on the bolt. To obtain fail safe operation of the drop bolt the cage is slidable in the housing from the operative position to a disengaged position so that the bolt is movable from the locking configuration to the unlocked configuration without operation of the mechanical drive.</p> |
申请公布号 |
CA2464554(C) |
申请公布日期 |
2013.07.09 |
申请号 |
CA20042464554 |
申请日期 |
2004.04.15 |
申请人 |
TRIMEC TECHNOLOGY PTY LTD. |
发明人 |
LUKER, GRAHAM JAMES |
分类号 |
E05B47/00;E05B47/02;E05B15/02;E05B17/00;E05B47/06;E05B63/00 |
主分类号 |
E05B47/00 |
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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