发明名称 |
Elevator safety device with foreign matter detection using a light beam |
摘要 |
There is provided an elevator safety device that can prevent a light beam from being looked into. The elevator safety device according to the present invention includes light emitting means for emitting a light beam crossing an entrance; light receiving means for detecting the light beam emitted from the light emitting means; foreign matter detection means for generating a foreign matter detection signal when detection of the light beam by the light receiving means is interrupted; and control means. The control means causes the light emitting means to stop an emission in a fully opened state of car doors, and causes the light emitting means to start the emission at a start of or during a closing operation of the car doors. |
申请公布号 |
US8672098(B2) |
申请公布日期 |
2014.03.18 |
申请号 |
US200913125119 |
申请日期 |
2009.09.18 |
申请人 |
KASHIWAKURA HIROSHI;HIROHATA KEISHIRO;FUJII TAKUYA;FUJITEC CO., LTD. |
发明人 |
KASHIWAKURA HIROSHI;HIROHATA KEISHIRO;FUJII TAKUYA |
分类号 |
B66B13/14 |
主分类号 |
B66B13/14 |
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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