Abstract: A solenoid type device as a magnetic switch of a starter 10 comprises an exciting coil 3f that is energized and generates magnetic force, a plunger 3a that is a moving core which is a part of the magnetic circuit, and a fixed core 3j that faces the moving core and is also a part of the magnetic circuit. The moving core plunger 3a is divided into concentrically the first plunger 31 and the second plunger 32a. This configuration allows the second plunger 32a to be attracted first and then the first plunger 31a to be attracted. Thereby, it is possible to make a small and light magnetic switch while ensuring that the magnetic switch maintains sufficient attraction force as well as to increase reliability of operations of the magnetic switch even when battery voltage is low.

Abstract: A solenoid type device as a magnetic switch of a starter 10 comprises an exciting coil 3f that is energized and generates magnetic force, a plunger 3a that is a moving core which is a part of the magnetic circuit, and a fixed core 3j that faces the moving core and is also a part of the magnetic circuit. The moving core plunger 3a is divided into concentrically the first plunger 31 and the second plunger 32a. This configuration allows the second plunger 32a to be attracted first and then the first plunger 31a to be attracted.

Abstract: The major object of the invention is to provide an internal combustion engine stating device capable of improving cost effectiveness and quality assurance.

Abstract: The present invention relates to reduce noises when a starter is put in motion with a simple modification to its structure without increasing the number of parts. A circumferential groove is made in a portion near one end of the shaft of an armature and the holder plate of a brush is fixed to the inside of the end surface of the bracket with screws, and the outer peripheral portion of the washer is sandwiched by the bracket and the holder plate and the inner peripheral portion of the washer is fitted in the circumferential groove of the shaft to limit the movement of the armature.

Abstract: In a permanent magnet starter, a pinion clutch is smoothly engaged with a rotating shaft of an electric motor through a helical spline. A rotation restraint member is arranged at an outer periphery portion and this rotation restraint member is forcibly arranged by a magnetic field coil which is controlled from an outside portion. In a permanent magnet type motor having no magnetic field coil for exciting the motor, it is unnecessary to alter a motor unit. By the rotation force of an armature a pinion gear of the pinion clutch is moved, accordingly the permanent magnet starter for reducing the collision force during the meshing time of the pinion gear to a ring gear can be obtained. Further the permanent magnet starter having a superior gear meshing withstanding property and further without the lowering in the sealing property in the motor unit can be obtained.