Abstract: A self-resetting push switch includes a closed-end insulating housing having first and second pairs of opposing inner wall surfaces. First grooves are formed on the first pair of surfaces, while a second groove having a projection is formed on at least one of the second pair of surfaces. First and second movable contact pieces project outwardly from a sliding sleeve being integral with an operation rod and having at least one engagement piece engageable with the projection of the second groove. The movable contact pieces are capable of coming into sliding contact with a first stationary contact piece inserted in one of the first grooves, and a second stationary contact piece.

Abstract: A lamp with an integral switch comprises a push switch knob assembly including a knob (33) mounted in a tubular member (31) and urged by a spring (33). The lamp can be mounted such that the switch knob (33) is maintained in its retracted position by something such as a closed trunk hood of an automobile thereby breaking the circuit between a power source and a bulb (4) of the lamp, and is allowed to be moved to its extended position under the action of the spring (33) making the circuit between the power source and the bulb (4). It can be conveniently used for automatically illuminating a trunk room of an automobile, for example, when its trunk hood is opened.