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发明授权
CN101029492B 封闭装置 失效 - 权利终止

封闭装置
摘要：
一种封闭装置包括固定框架(4)和覆盖元件(6)，所述框架限定了框架平面(P-P)。所述装置(2)包括第一锁闩(30)，所述第一锁闩具有两个相互配合并相对所述框架平面(P-P)倾斜的锁闩平面(32、34)。覆盖元件(6)和框架(4)包括配合的止挡表面(52、56)，所述止挡平面限定了盖子(6)在框架平面(P-P)中在框架(4)内的位移。止挡表面(52、56)相对于框架平面(P-P)倾斜30°-80°的角度并且使覆盖元件在框架上保持平整。本发明还涉及封闭人孔的人孔盖。
摘要（英）：

The closure device includes a fixed frame ( 4 ) and a covering element ( 6 ), the frame ( 4 ) defining a frame plane (P-P). A first latch ( 30 ) has two latch surfaces ( 32, 34 ) which cooperate and which are inclined relative to the frame plane (P-P). The covering element ( 6 ) and the frame ( 4 ) comprise cooperating stop surfaces ( 52, 56 ) which limit a displacement of the lid ( 6 ) within the frame ( 4 ) in the frame plane (P-P). The stop surfaces ( 52, 56 ) are inclined relative to the frame plane (P-P) by an angle of from 30 DEG to 80 DEG and they maintain the covering element flat on the frame. The present invention also relates to manhole covers for closing manholes.

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