Joints and connections – Articulated members – Pivoted
Patent
1990-07-30
1992-05-19
Cuomo, Peter M.
Joints and connections
Articulated members
Pivoted
403353, 417269, 92187, F16C 1106, F04B 2708
Patent
active
051142619
ABSTRACT:
A swashplate type hydraulic device has a ball joint which includes a spherical socket of a major arc longitudinal section formed in a plunger or a shoe member and a ball formed at an end of a connecting rod which connects the plunger and the shoe member, the ball being fitted in the socket so as to permit a swing motion of the rod around the ball, the inlet of the socket having a center offset by a predetermined amount of distance from the center of the socket while the ball having a cylindrical portion which can be fitted in the inlet and which has a center located offset from the center of the ball by an amount equal to the offset amount of the inlet center relative to the socket center, the centers of the inlet and the cylindrical portion being offset relative to each other in a fitted state of the socket and ball. The ball includes a chamferred portion to permit the ball to be fitted in the socket when the rod is at a position outside its normal swinging range. The ball and socket can have an increased strength against disassembly even when they are subjected to surface hardening before assembly.
REFERENCES:
patent: 3192868 (1965-07-01), Wahlmark
patent: 3589756 (1971-06-01), Pruvot
patent: 3787128 (1974-01-01), Maistrelli
patent: 3795922 (1974-03-01), Herbert et al.
patent: 3871782 (1975-03-01), Johansson et al.
patent: 4225260 (1980-09-01), Gaines
patent: 4279041 (1981-07-01), Buchholz
patent: 4815327 (1989-03-01), Drevet
patent: 4860641 (1989-08-01), Spears
Sugimoto Kimiyasu
Yoshino Hajime
Cuomo Peter M.
Honda Giken Kogyo Kabushiki Kaisha
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