| 摘要 |
A wedge device particularly suitable for use in mounting a swimming pool light in a niche formed in a wall of the pool has a wedge member and a drive member for use in driving the wedge member between the side of the light and the wall of the niche. The drive member is pivotally mounted on the wedge member for limited slidable freedom of motion laterally as well as rotatable motion by means of a pair of trunnions which extend therefrom and fit into cylindrical sleeve bearings formed in the wedge member. A screw member threadably engages the drive member and is inserted through an aperture in the mounting ring for the light. When the screw is tightened against the mounting ring, it draws the wedge member against a side of the light and the wall of niche thereby wedging the light in place. The drive member can be rotated ninety degrees on its trunnions to change the size of the wedge provided by the wedge member thus enabling its use under different installation requirements.
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