Time switch

Details Time switch Time switch

H - Electricity

01

H

H01H 43/00 (2006.01) G04G 15/00 (2006.01)

Patent

CA 2292222

A time switch includes a circuit board equipped with a time switch circuit and a display for displaying a time-schedule set by a user and current time, an operation unit having push buttons for setting the time-schedule and current time, and a casing in which the circuit board and operation unit are accommodated, the casing having openings for fitting the push buttons. The operation unit includes a resilient sheet member integrally equipped with the push buttons and conductive contact members each disposed on a portion corresponding to each of the push buttons. The circuit board has pairs of contact portions, each pair of contact portions being electrically connected via the conductive contact member while the push button is depressed. The operation unit is supported the casing and the circuit board in a state that a peripheral portion of the sheet member is clamped by and between an inner surface of the casing and the circuit board with the buttons fitted in the openings.

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