PURPOSE: To unforcefully arrange parts including an operation part vertically by storing the main body of a timer unit into a storage recessed part in the center and terminal units in the storage recessed parts in sides of the main body, respectively, and by providing a switch contact point mechanism on the bottom part side and a reversal mechanism on the upper part, respectively.

CONSTITUTION: A timer unit 7 comprises a set/reset mechanism 63, a switch lever 74 for operating a timer switch contact point mechanism 40, and a spring 77, and the switching of the mechanism 40 is controlled by an operation part 65. When an operation body 35 is pushed and operated, a needle 29 is rotated by the inversion of a spring 33, and a mobile machine piece part 32 is separated from a fixed armature 13 and is released. When the operation part 65 is separated from the engagement end 66 of a cam 64 by the rotation of the operation body 35, the cam 64 is rotated clockwise by the spring 77, while the engagement end 71 of another cam 68 is removed from the spring 74, which is rotated clockwise by the spring 77. The mechanism 40 is released only when a specific period of time elapses after the operation part 35 is operated.