| 摘要 |
The instant invention overcomes the difficulties encountered with respect to mounting electrical wiring devices to a common box and then positioning the devices relative to each other prior to attaching a wall plate. Some of the difficulties encountered are positioning the wiring devices to be in alignment with each other, locating the wiring devices to be parallel to each other, adjusting the spacing between the different devices to be equal and uniform and fixing all of the devices to be flat against the wall. In the prior art, the wiring devices are first loosely attached to a box and then moved back and forth, and up and down to fit within cut outs in a wall plate which is then attached to the wiring devices with screws. A time consuming and tedious job. This invention overcomes these deficiencies by providing wiring devices that have locating openings for engaging alignment pins located in a plate that is subsequently attached to a box. The alignment pins, when engaged by the close clearance locating openings, accurately position the wiring devices to allow a wall plate to be attached without any initial or subsequent adjustment. Each set of alignment pins on the alignment plate can be located on a vertical axis which accurately defines the center for the wiring device. The opening in the wiring device receives and holds captive a set of alignment pins. The alignment pins are located to accurately position, align and locate all of the wiring devices mounted to the attachment plate. Once assembled, a wall plate can be positioned over the wiring devices without further adjustment. The attachment plate is attached to a wall box by means of mounting screws and provides a flat rigid support for the wiring devices.
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