| 摘要 |
The switching device ( 40 ) is intended for assembly on an electric circuit mounting plate ( 16 ) that comprises contacts ( 8, 10 ) to be electrically connected when a switching operation is performed. It includes a switch component, for example a dome ( 4 ), associated with an actuator ( 2 ), allowing the electrical connection to be established between the said contacts when it is deflected under pressure transmitted by the actuator. The device additionally includes a base plate ( 46 ) equipped with holding means ( 50 a) for holding the switch component ( 4 ) prior to assembling the device on the mounting plate ( 16 ), the switch component being disengaged from these holding means when the device is assembled on the mounting plate. The switch component ( 4 ) is able to be supported only by the mounting plate ( 16 ) when the device is assembled on it, the base plate ( 46 ) then providing only a guidance function in respect of the switch component. The switch component ( 4 ) may be intended to disengage itself naturally from the holding means ( 50 a) under the effect of a push exerted on said dome by the mounting plate ( 16 ) when the device is assembled on to it.
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