Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Separate head element
Patent
1997-07-03
1998-11-10
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Separate head element
411373, 411380, 411412, F16B 2300, F16B 3506
Patent
active
058334181
ABSTRACT:
To make it easy to manufacture a stud 1 provided with a spherical surface bearing, a race (3) is composed of a first member (3a) and a second member (3b) so that a ball receiving portion (301) is separated. Coupling surfaces (5) and (6) that couple with each other are formed in the first and second members (3a) and (3b). Screw portions are formed on the coupling surfaces (5) and (6), respectively. When the stud (1) provided with the spherical surface bearing is manufactured, a ball (2a) is held by the first and second members formed indivisually, and the first and second members (3a) and (3b) are threadably engaged with each other at the screw portions. In this case, by adjusting an amount of a engagement at the screw portion, the positional relationship between the first and second members (3a) and (3b) is set as desired, to thereby suitably adjust a gap between the ball receiving portion (301) of the race (3) and the ball (2a). The positional relationship between the first and second members (3a) and (3b) is fixed by a pin (4) to thereby eliminate the gap change.
REFERENCES:
patent: 1400736 (1921-12-01), Flannery et al.
patent: 1403744 (1922-01-01), Dodds
patent: 1498019 (1924-06-01), Dodds
patent: 1660960 (1928-02-01), Greenslade
patent: 2453724 (1948-11-01), Bowen et al.
patent: 2928686 (1960-03-01), Newkirk
patent: 3059948 (1962-10-01), Thompson et al.
patent: 3535976 (1970-10-01), Osuga
Minebea Co. Ltd.
Wilson Neill R.
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