Coaxial type starter device

Details Coaxial type starter device Coaxial type starter device

1990-07-19

1991-11-26

Braun, Leslie A.

Machine element or mechanism

Engine starters

Automatic

74468, 290 38C, 464 16, F02N 1100

Patent

active

050673572

ABSTRACT:
A coaxial type starter device comprises an overrunning clutch device having a clutch inner member and a pinion shaft with a pinion at an end, the pinion shaft being inserted in the clutch inner member so as to be engageble therewith by helical splines formed at the pinion shaft and the clutch inner member so that a torque is transmitted from the clutch inner member to the pinion shaft and a radial load by the pinion shaft is borne by the helical spline of the clutch inner member, wherein the helical splines of the clutch inner member and the pinion shaft have radially contacting portions wherein the outer surfaces of the teeth of the helical spline of the clutch inner member are in slide-contact with the corresponding parts of the helical spline of the pinion shaft, and have radially non-contacting portions wherein the other portions of the helical spline of the clutch inner member face, with gaps, the corresponding parts of the helical spline of the pinion shaft, and wherein the total surface area of the radially contacting portions is larger than that of the radially non-contacting portions.

REFERENCES:
patent: 659522 (1900-10-01), Furbish
patent: 1751634 (1930-03-01), Holmes
patent: 2223212 (1940-11-01), Jacobsen
patent: 2281914 (1942-05-01), Brooks
patent: 4760274 (1988-07-01), Isozumi
patent: 4800766 (1989-01-01), Isozumi et al.
patent: 4862027 (1989-08-01), Isozumi et al.
patent: 4941366 (1990-07-01), Isozumi
patent: 4987786 (1991-01-01), Morishita et al.

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