发明名称 |
A door system for a mine stopping |
摘要 |
<p>A door system for use in a mine stopping comprises a door frame for installation in the stopping to define a doorway, a door hinged to a first side of the door frame for swinging between an open position and a closed position in which the door closes the doorway, and a latch for latching the door in its closed position. The latch comprises a strike which is secured to a second side of the door frame generally opposite the first side and which has a strike plate portion disposed in the doorway in a plane generally perpendicular to the plane of the doorway and spaced from the second side of the door frame thereby to create a void between the strike plate portion and the second side of the doorway. The strike plate portion has a latching aperture therein. A latching bar is mounted on one face of the door for pivotal movement on an axis generally perpendicular to the door between a latching position in which the latching bar is adapted to project through the latching aperture and into the void to latch the door closed, and a release position in which the latching bar is removed from the latching aperture to permit the door to be opened.</p> |
申请公布号 |
GB2258006(B) |
申请公布日期 |
1994.06.01 |
申请号 |
GB19920008642 |
申请日期 |
1992.04.22 |
申请人 |
* JACK KENNEDY METAL PRODUCTS AND BUILDINGS INC |
发明人 |
JOHN M * KENNEDY;WILLIAM R * KENNEDY |
分类号 |
E05B17/00;E05B63/04;E05C3/04;(IPC1-7):E05C3/04;E05B15/02;E21F1/14 |
主分类号 |
E05B17/00 |
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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