发明名称 |
Spring force safety locking system for sectional doors |
摘要 |
Hardware designed to improve safety and minimize the risk involved in installing, maintaining, and operating sectional doors that use spring mechanisms to facilitate door movement. A lock-on side bearing bracket bears up a spring mechanism on a garage door. This side bearing bracket includes a hook and a perpendicular tab to prevent the spring mechanism from dangerously releasing its energy when parts supporting the spring mechanism are removed or fail. A lock-on bottom roller bracket having a bottom bearing plate and a safety hook similarly prevents a potential, dangerous release of energy when the garage door lift cable is in tension. A safety latch with a latch bar and a latch cover acts as a lock for the garage door. The use of multiple safety features makes the garage door systems of the present invention particularly safe to operate and maintain.
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申请公布号 |
US6401793(B1) |
申请公布日期 |
2002.06.11 |
申请号 |
US20000547430 |
申请日期 |
2000.04.12 |
申请人 |
MARTIN DOOR MANUFACTURING, INC. |
发明人 |
MARTIN DAVID O. |
分类号 |
E05D13/00;E05D15/24;E05F15/00;(IPC1-7):E05F11/00 |
主分类号 |
E05D13/00 |
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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