| 摘要 |
A push-button switch includes: a shell composes of a top plate and a button plate. The button plate is made of insulated material. At least two speed-button units mount on the top plate. Each speed-button unit has a couple of conductor set at the button and each conductor set includes a conductor and a connector. The press-arm can press the conductors to move downward and touch the connectors and make the circuit connected when the corresponding speed-button unit is pushed. A lock device mounts in the shell for keeping the button in lock mode position when the button was pushed. A release-button mounts on the top plate and can be pushed to release all buttons from lock mode. A signal-conductor unit that mounts under the signal-button includes a conductor and a connector. The conductor unit forms a signal circuit when the signal-button was pushed.
|
