| 摘要 |
<p>The moulded plastic housing has a cylindrical section with the bottom having a number of holes (12) or regions (14) with weakened boundaries that can be snapped out to accept a clip. An annular lip strengthens the top opening of the cylinder, through which the electrical components are inserted. A pair of guides (3,3') run along the outer wall of the cylinder, and have passages (6,6') to accept fixing screws. A pair of rigid striated anchor plates (5,5') to accept clip mounting are formed adjacent to the guides, making use of their extra rigidity. Each screw passage is formed with a thin flat internal wall, and the corresponding anchor plate is roughly in the middle of the flat.</p> |
