JPS6264877U - - Google Patents

Description

[Brief Description of the Drawings] Fig. 1 is a half-sectional view showing an embodiment of the inertial plunge starting motor of the present invention in a stopped state, and Fig. 2 shows the operating state of the inertial diving starting motor in Fig. 1. Figures 3a and 3b are a front view and a cross-sectional view of the weight holder, Figures 4a and b are a front view and a cross-sectional view of the weight, respectively, and Figure 5 is a conventional inertial diving type. FIGS. 6a and 6b are a front view and a sectional view of the space ring in FIG. 5, respectively. FIGS. 7a and b are a front view and a sectional view of the weight in FIG. 5, respectively. . DESCRIPTION OF SYMBOLS 1... Drive shaft, 1a... Helical spline part, 1b... Level difference, 2, 3, 4... Clutch outer, roller, pinion which constitutes a moving cylinder member, 5... Cover forming a stopper, 6... Weight, 7... Garter spring, 8... Weight holder, 8a... Disc part, 8b... Cylindrical part forming a locking part, 8d... Slit, 8e... Protrusion, 9... Flat washer, 10... Collar, 11...Ring gear, 12...Drive gear, 12a...Recess, 16
... Archiyashaft.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A starter motor having an armature shaft, a drive shaft having a helical spline portion and a step formed on its outer periphery, and a movable cylinder member spline-coupled to the helical spline portion of the drive shaft. , a washer that contacts the step of the drive shaft; a cylindrical collar that contacts the end surface of the washer and is provided on the outer periphery of the drive shaft; and a disk portion that contacts the end surface of the collar and extends in the radial direction. a weight holder having a locking portion bent in the axial direction on the washer side from an end of the disk portion; and a weight holder that transmits rotation of the armature shaft of the starter motor to the shaft, A drive gear fixed to the drive shaft so as to press the weight holder against the step of the drive shaft; The lateral movement of the weight is regulated by the locking part of the weight holder, and the stationary part of this weight is prevented from expanding in the radial direction, and when the drive shaft is at a predetermined rotation speed, the centrifugal force of the weight causes the weight to expand in the radial direction. An inertial plunge-type starter comprising: a spring set to expand in the direction; and a stopper that restricts movement of the movable cylinder member in the axial direction when the weight is restricted by the locking portion of the weight holder. Electric motor. (2) The inertial diving starter motor according to claim 1, wherein the weight holder is fitted to the drive gear with a concave and convex portion. (3) The weight is formed with a protrusion, and the disk portion of the weight holder is formed with a hole that extends in the radial direction and is engaged with the protrusion, so that the weight is positioned relative to the weight holder. An inertial plunge-starting motor according to claim 2, which is unrotatable in the rotational direction but movable in the radial direction.