Mitsuba Corporation

Honda Motor Co., Ltd.

Hiroshi Ooka

Tomohiko Ikemori

Masataka Odagiri

Shigehiro Kanbe

Masaaki Oya

Hiroki Yamada

Mitsuhiro Kogure

Yusuke Fukada

Seiji Shimada

Masahiro Nakamura

Satoshi Sekiguchi

Hitoshi Ono

Yoshikazu Sato

Shigeyuki Enkaku

Takayuki Yamagata

Yusuke Fujita

Hiroki Saito

Masahiko Tsuchida

The invention suppresses hysteresis. A relief valve switching between whether to discharge oil through movement of a valve body includes: a first spacing part, in which the valve body moves; a second space part, connected with the first space part and having a diameter smaller than a diameter of the first space part; an elastic body, connected with the valve body; a seal part, disposed in a circumferential direction of the valve body; and a third space part, formed in the first space part.

Relief valve and pump cover

A starter () includes a motor unit (), an output shaft () configured to receive a rotational force of the motor unit () and rotate, a pinion gear () (a pinion mechanism) helically engageable with a ring gear () of an engine, a clutch mechanism () configured to transmit the rotational force of the output shaft () to the pinion gear (), and an electromagnetic device () configured to bias a pressing force toward the ring gear () to the clutch mechanism () and the pinion gear (), wherein a plunger spring () (a backlash absorption mechanism) configured to bring one end () (a point of action) of a plunger inner part () in constant elastic contact with the clutch mechanism () is installed at the electromagnetic device ().

Starter

Formed in a pinion () are pinion-side helical external teeth (A) that mesh with a ring gear), and pinion-side helical internal teeth () that mesh with a pinion inner (). Formed in the pinion inner () are pinion inner-side helical external teeth () that mesh with the pinion-side helical internal teeth (). The configuration is formed so that when the rotational speed of the pinion () is slower than that of the ring gear (), a thrust load is generated in a direction toward the ring gear (), and when the rotational speed of the pinion () is faster than that of the ring gear (), a thrust load is generated in a direction away from the ring gear ().

A starter includes an output shaft which rotates by a rotary force applied from the motor unit, a housing in which an end of the output shaft is rotatably supported, and an electromagnetic device configured to apply/shut off current to the motor unit, and biases a suppressing force toward the ring gear to the pinion gear through a clutch mechanism, wherein a load receiving member which abuts one end of the output shaft to receive an axial load generated from the output shaft is installed in the housing.

An electromagnetic controller includes an exciting coil unit that is provided with a coil main body and an exciting piece that is positioned at a tip end side of the coil main body so as to be magnetized according to an excitation of the coil main body; and a plunger that is disposed in a ring-shaped space formed at an inner diameter side of the exciting coil unit so as to be movable in the ring-shaped space in an axial center direction, the plunger being displaceable from a non-acting position to an acting position at a tip end side under an attracting force based on magnetization of the exciting piece, wherein an urging member is provided at the inner diameter side of the exciting coil unit so as to urge the plunger to a side of the non-acting position according to demagnetization of the exciting piece.

Engine starter

Growing community of inventors

Kiryu, Japan

Hiroshi Ooka