Title:
ASSEMBLY CAM SHAFT
Document Type and Number:
Japanese Patent JPS61248912
Kind Code:
A
Abstract:
PURPOSE:To prevent foreign objects from being bitten when molding a bulge by forming a hole section having a polygonal cross section on the through hole of a cam piece and providing truncated-conical chamfer sections flaring gradually toward the side face on both sides of this hole section. CONSTITUTION:A polygonal hole section 23 having a hexagonal cross section is provided nearly at the center in the axial direction on the through hole 22 of a cam piece 6, and truncated-conical chamfer sections 7, 8 flaring gradually toward the side face of the cam piece 6 are formed smoothly in contact with both sides of this hole section 23. Therefore, when a hollow shaft 2 is inserted into the through hole 22 for bulge-machining, no gap is generated between the outer periphery of the hollow shaft 2 and chamfer sections 7, 8, thus no foreign objects are bitten, and each cam piece 6 is firmly fixed to the hollow shaft 2.
Inventors:
KAWABATA KUNIHIRO
TAJIMA TAKASHI
TAJIMA TAKASHI
Application Number:
JP9212185A
Publication Date:
November 06, 1986
Filing Date:
April 26, 1985
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK
International Classes:
B21D26/02; B21D26/033; F01L1/04; F16C3/02; F16H53/02; (IPC1-7): B21D26/02; F01L1/04; F16C3/02
Domestic Patent References:
| JPS4928298A | 1974-03-13 | |||
| JPS60532A | 1985-01-05 |