| 摘要 |
A glass cover for an enclosure is mounted over an opening in the enclosure by a pair of recessed hinges, each of which includes a hinged body. There are two slots in each hinged body. Each hinged body is positioned within a recess in the enclosure wall. The hinge also includes a frictional member positioned in one of the slots in the hinged body, and a cover holder. Two pins couple the cover holder to the hinge body. One of the pins is coupled to the friction member; this pin passes through one of the slots into a socket in the friction member. The other pin is positioned within the other slot. The frictional member engages a portion of the hinged body defining the perimeter of the slot in which it is disposed. As the cover is raised and lowered, the frictional member rides along this slot. The frictional forces between the side walls of the slot and the friction member are such that the cover remains stationary when the person lifting the cover releases his or her grip. A cover-leveling system is also provided, and the shape of the hinge body is designed for easy installation.
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