Oiles Corporation

Musashi Seimitsu Kogyo Company Limited

Atsushi Ueno

Kazuyuki Miyata

Ryohei Kaneko

Tadashi Watai

Tatsuyoshi Tsuji

Yoshikazu Sakairi

Kazuo Kato

Kenji Yamada

Masataka Tagami

Yoshimichi Kamiyama

Toshirou Tanaka

Tetsuya Aida

A thrust sliding bearing includes an upper casing having a polyacetal resin-made flat annular surface and a lower casing superposed on the upper casing so as to be rotatable about an axis of the upper casing and having a polyacetal resin-made annular surface opposing the annular surface of the upper casing.

Thrust sliding bearing

A synthetic resin-made sliding bearing () includes a synthetic resin-made lower casing (), a synthetic resin-made upper casing () superposed on the lower casing (), a synthetic resin-made disk-shaped thrust sliding bearing piece () disposed between the upper and the lower casings () and (), and a synthetic resin-made cylindrical radial sliding bearing piece () disposed between the upper and the lower casings () and ().

Synthetic resin-made sliding bearing

A steering column bearing is comprised of an outer bush and an inner bush held in the outer bush. The outer bush includes: an inner ring having a lip portion and a retaining protrusion formed projectingly along the circumferential direction at a predetermined interval from the lip portion in an axial direction; an outer ring having protrusions; a support leg by which an outer peripheral surface portion of the inner ring not corresponding to a hollow cylindrical recess and an inner peripheral surface portion of the outer ring corresponding to that outer peripheral surface portion are integrally connected to each other in the circumferential direction; and reinforcing ribs each of which extends from an outer peripheral surface portion of the inner ring corresponding to the lip portion to the support leg, and integrally connects the outer peripheral surface of the inner ring, the inner peripheral surface of the outer ring, and the support leg.

Steering column bearing

A synthetic resin bearing comprised of synthetic resin-made upper and lower bearing cases and a synthetic resin-made bearing member having a disk-shaped thrust bearing piece and a hollow-cylindrical radial bearing piece with a radially extending slit. The bearing member is disposed such that the radial bearing piece is kept in sliding contact with an outer peripheral surface of a hollow cylindrical portion of the lower bearing case, and the thrust bearing piece is kept in sliding contact with a bottom of an annular recess formed in the lower bearing case. The upper bearing case is assembled to the lower bearing case such that an annular engaging hook portion is snappingly fitted over an annular engaging projecting portion of the lower bearing case. Hermetically sealing portions due to labyrinth action are formed between the upper and lower bearing cases, respectively at the snappingly fitting portion, at an engaging portion between an annular suspended portion of the upper bearing case and an annular groove in the lower bearing case, and at an engaging portion between an annular groove in the upper bearing case and an annular projection of the lower bearing case.

Synthetic resin bearing

A synthetic resin connecting rod is disclosed having a ball socket integrally formed with an opening on one side and a concave spherical surface extending from the opening at each end of the rod. In order to increase the strength, the connecting rod has a rib as a reinforcement on the connecting line between the centers of each spherical surface, the connecting line intersecting a transverse cross section of the rib. A ball joint using the preferred synthetic resin connecting rod is lighter than one using a metal rod and is strong enough to be used as a ball joint for a stabilizer in an automobile.

Synthetic resin ball joint with reinforcing rib

A synthetic with an opening at the top and a concave spherical surface extending from the opening, where a ball head of a ball stud is fixed, has a circular concave step on the outer surface of the housing surround the opening. A metal ring is fixed on the circular step so that the strength of the opening of the synthetic resin housing in a radial inward direction is greatly increased to resist the pull-out load on the ball stud. Warping of the opening is thereby prevented.

Growing community of inventors

Fujisawa, Japan

Atsushi Ueno