Japanese Patent JPH0266727

U

A drive shaft comprises a first joint member (1), a first tubular shaft (2) connected on one side with the first joint member, a second joint member (3), a second tubular shaft (4) connected on one side with the second joint member and coupled on the other side with the other side of the first tubular shaft so as to transmit torque and slide axially, and a coiled spring assembly (20) provided in the coupling section of the two tubular shafts for biasing the two tubular shafts each other axially oppositely. The coiled spring assembly is composed of a plurality of coiled spring units (A,B,C,D) and at least one spacer member (9) which is interposed between the two coiled spring units and has a pair of receiving portions with which the ends of the two coiled spring units are fitted so that the two coiled spring units are kept out of contact with the inner peripheral surface of one of the two tubular shafts forming the coupling section and an outer contact portion held in contact with the inner peripheral surface of the one tubular shaft. Since the total amount of flexure of the coiled spring assembly is limited due to the use of a plurality of coiled spring units and the individual coiled spring units are radially positioned so as to contact with the inner peripheral surface of the one tubular shaft, during rotational motion the coiled spring means is prevented from colliding with the inner peripheral surface of the one tubular shaft and the like, resulting in no generation of large noise and vibration during rotational motion.

JP14335488U

May 21, 1990

October 31, 1988

Click for automatic bibliography generation  

B21B35/14; F16D3/06; F16D3/66; (IPC1-7): F16D3/06; F16D3/66

JPS5516188U	1980-02-01
JPS324922Y1
JP12000908Y1
JPS5715135A	1982-01-26
JP52068790B
JPS516351B1	1976-02-27

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