| 摘要 |
PURPOSE:To reduce the number of part items, to improve assembling property, and to obtain stabilized click feeling by putting a flexible sheet member (for example, a rubber sheet) between a printed board and a push button, and transmitting depressing force securely at the time of pushing the push button to bend a thin-walled part of the sheet member for deformation. CONSTITUTION:When an operation part 21a of a dial key 3a is pushed with a finger or the like, a corresponding key is lowered by the hinge work of a supporting piece 7, and a push part 15 of a rubber sheet 14 arranged at a position corresponding to the pushed key is pushed to bend a thin part 16 for deformation, and a movable contact 17 provided on the back surface of the rubber sheet 14 contacts with a fixed contact 19 provided on a printed board 18 to turn on the switch. When the finger is removed from the operation part 21a of the dial key 3a, the thin part 16 of the rubber sheet 14 is returned to the original condition, and each contact is separated to turn off the switch. |
