METHOD OF MANUFACTURING DRIVE PLATE

Title:

METHOD OF MANUFACTURING DRIVE PLATE

Document Type and Number:

WIPO Patent Application WO/1994/020239

Kind Code:

A1

Abstract:

The invention relates to a method of manufacturing a drive plate adapted to mesh with a pinion gear fitted on a rotating shaft of a starter motor for starting an internal combustion engine. A ring-shaped work is formed at its inner periphery with a plurality of caulking projections (4a) and at its outer periphery with a toothed portion by a die forging processing. The caulking projections (4a) are inserted into caulking holes (46) formed in a circular plate (45), and are punch-pressed by a caulking punch (49) to be crushed, thereby securing the circular plate (45) to the inner periphery of a ring gear (41). Accordingly, a processing time can be shortened since machining and electric welding are dispensed with.

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Inventors:

YOKOYAMA MICHIHIRO (JP)

Application Number:

PCT/JP1994/000364

Publication Date:

September 15, 1994

Filing Date:

March 07, 1994

Export Citation:

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Assignee:

OHASHI TECHNICA INC (JP)
KABUSIKI KAISHA IPC (JP)
YOKOYAMA MICHIHIRO (JP)

International Classes:

B21D39/03; B21J15/14; B21K1/30; B21K25/00; B23P11/00; (IPC1-7): B21K1/30; B21D39/03; B21K25/00

Foreign References:

JPH03281029A	1991-12-11
JPS5168470A	1976-06-14

Other References: