| 摘要 |
A switch structure or assembly that includes one or more modular switch units is formed with a recess around its top wall, bottom wall, and end plates. Two ridges are formed on each end plate, which ridges extend the full width of the recess but which are narrow compared with the height of the end plates. Two identical U-shaped bands lie within the recessed portion and together embrace the switch structure or assembly. One leg of each band is shorter than the other leg of each band, the longer leg of each band being adapted to extend over both ridges of one end plate and the shorter leg being adapted to extend over only one ridge of the opposite end plate. Tongues are lanced near the ends of the longer legs of each band and slots are lanced near the ends of the shorter legs of each band. The tongue of a first band engages the slot of the second band on one side of the switch structure or assembly while the tongue of the second band engages the slot of the first band on the other side of the switch structure or assembly. The bands are securely hooked together by engagement of their respective tongues and slots and thereby hold the switch structure together. |
