Method of injecting molding a universal joint

Details Method of injecting molding a universal joint Method of injecting molding a universal joint

1986-04-10

1987-11-17

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

29434, 29525, B29C 4514

Patent

active

047073209

ABSTRACT:
An injection molded universal joint (10) includes a central retaining member (40) captured between spherical balls (30, 32, 34, 36) seated in bores (22, 24, and 26, 28) located in diametrically opposed arms (14, 16, and 18, 20) of respective shaft members (11, 12). The spherical balls are each pressed through an associated bore until a portion of the ball extends radially inwardly of the arm, and then maintained in position by a plastic material (80) insert molded into and retained in the bore. The insert molded plastic material (80) retains each of the spherical balls in place and permits the central retaining member (40) to be accurately positioned and with a predetermined preload applied to the universal joint (10).

REFERENCES:
patent: 1705731 (1929-03-01), Hufferd
patent: 2545646 (1951-03-01), Blinkman
patent: 2954992 (1960-10-01), Baker
patent: 3296830 (1967-01-01), Runkle
patent: 3310959 (1967-03-01), Sheppard
patent: 3324681 (1967-06-01), Burns et al.
patent: 3764647 (1973-10-01), McDow
patent: 4203683 (1980-05-01), Rogers
patent: 4290181 (1981-09-01), Jackson
patent: 4431328 (1984-02-01), Smith

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