JPS6460246A - Connection of commutator for starter - Google Patents

Abstract

PURPOSE:To reduce axial size and to reduce the entire size, by making a recess in the outer circumference at one end portion of commutator then pressure fitting an armature coil therein, thereafter cutting the outer circumference in flush and employing as brush sliding face. CONSTITUTION:An armature core 2 is secured to a shaft 1 at commutator section of starter, and upper and lower coils 4, 3 are arranged on the outer circumferential section of the core 2. A permanent magnet 5 is secured to the inner circumferential face of a yoke 6 while facing with the core 2. A collar 8 is secured to the shaft 1 and a groove 15 for receiving the lower coil 3 is made in the outer circumferential section, then an assembly of a bush 9, an insulator 10 and a commutator chip 11 is pressure inserted over the collar 8. Furthermore, recesses 15, 16 are made at the opposite end portions of the commutator chip 11 and the upper and lower coils 4, 3 are jointed through pressure joint or welding, then the outer circumferential section is cut in flush with the commutator chip and the joint of coil is used as a portion of brush sliding face. Consequently, an armature coil can be connected reliably.