| 摘要 |
An electric switch is disposed in a cavity of a buckle. The electric switch includes a stationary first contact member, a movable second contact member, a biasing means for the second contact member, and an actuating member. The biasing means biases the second contact member to the closed position of the electric switch. The electric switch has means by which the contact end portion of the second contact member makes a wiping, self-cleaning contact with the first contact member upon actuation by the actuating member. The actuating member, in turn, is actuated by a tongue of the buckle when the tongue is inserted into the buckle.
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