| 摘要 |
<p>PROBLEM TO BE SOLVED: To stabilize operation of an armature, and improve durability and reliability by attracting and opening/closing the armature supported by a supporting body by a solenoid, and arranging turning shafts of the supporting body and the armature on an one axis by being brought in contact one flat surface part and the other angle part with each other. SOLUTION: The angle part ridge line of the central supporting piece 21 of a supporting body 1 and the supporting surface of an armature 3 are brought in linear-contact with each other, the angle part judge line of the right and left supporting pieces 31a of the armature 3 and the supporting surface 2c of the supporting body 1 are brought into linear-contact with each other, those linear contact parts are formed on a same line so as to form it as just only turning shaft A. When current-carrying to a solenoid 708 is stopped, the top end of the armature 3 is brought in contact with a stopper 704 by an armature raising spring 4 so as to break connection of a torque. The top part of the armature 3 falls down opposing to the spring 4 around the turning shaft A by current-carrying to the solenoid 708, it stand apart from the stopper 704, the stopper 704 is rotated by friction of a driving gear part 702 so as to carry out torque connection. It is thus possible to prevent friction of a supporting plate 2B from generating by displacement of the armature 3, and it is possible to eliminate change of the resistance of a supporting point part so as to improve durability and reliability.</p> |
