ELECTROMAGNETIC SOLENOID

PURPOSE:To obtain an electromagnetic solenoid suitable for formation in a small type, and enabled to be operated according to small driving energy at an electronic typewriter, etc. by a method wherein the solenoid is formed in a construction enabled to make a body to be driven rotatably on a shaft to move and to displace in the axial direction of the shaft. CONSTITUTION:A type wheel 42 is equipped to a holding member 50 fixed to a movable core 49, and when an electromagnetic solenoid 51 is operated to drive the movable core 49 upwards and downwards, the type wheel 42 is driven together upwards and downwards. Moreover, the type wheel 42 is rotated according to a motor 47. A rotor 56 manufactured of a right circular cylinder type magnetic material, and the movable core 49 equipped with the type whell 42 are supported rotation freely and moreover transfer in the vertical direction freely by a shaft 55 fixed to the center of a fixed base 54. When a current is fed to an exciting coil 61, the movable core 49 moves upwards to be attracted to the rotor 56. The lower end surface of the rotor 56 is held in a stabilized condition on the flange part 55a of the shaft 55 according to energy of a spring 57, and a printing type 45a in the upper step and a printing type 45b in the lower step are printed forming a line in the same printing line.