Musashi Seimitsu Kogyo Kabushiki Kaisha

Nippon Oil Seal Industry Co., Ltd.

Musashisemitsukoguo Kabushikikaisha

Oiles Industries Co., Ltd.

Musashieimitsukogyo Kabushikikaisha

Mushashi Seimitsu Kogyo Kabushiki Kaisha

Akira Nemoto

Kenji Yamada

Eiji Satoh

Masayuki Kohama

Kenichi Terai

Yasunori Hamaguchi

Kunihiko Yokoya

A ball joint of the present invention joins a pair of members so that relative pivotal movement of the pair of members is permitted. The ball joint comprises a ball stud to be connected to one of the pair of members, a bearing support rod to be connected to the other member, and a cup-shaped bearing for supporting the ball stud on the rod. The bearing is formed of an elastic polymeric material and has an expandable open end to permit the ball of the ball stud to be put in and taken out of a hollow defined by the spherical inner surface of the bearing through the open end. The opposite ends of a rod forming the bearing support rod is bent in a ring-shaped heads, respectively. When the bearing is fitted in the ring-shaped head, the ring-shaped head compresses the bearing so that the ball of the ball stud is unable to come off the bearing. The ball joint of the present invention comprises a comparatively small number of component parts and has a simple construction, and any expensive manufacturing facilities are not necessary for manufacturing and assembling the component parts.

Ball joint assembly

A ball-and-socket joint used in a linkage mechanism of the motor vehicle steering device has a ball head of a shank, encompassed by a bearing in a housing. The housing has an end opening at the opposite side of the shank. A joining member made up of a head part and a male screw portion is fitted in the opening at the head part. The head part is integrally formed with a peripheral flange, preferably a flange of flared shape. The surface of the flange is covered with an elastic layer. A fixing ring abuts against the flange to prevent detachment of the joining member from the housing. A closure plate may be interposed between the flange and the bearing and between the flange and the housing. Vibration and shocks imparted to the ball head through the shank is absorbed by the elastic layer without increasing the diametrical dimension of the joint.

Ball-and-socket joint

A joint housing has mounted therein a bearing supporting a ball portion of a ball stud, extending outwardly therefrom, so as to allow angular displacement thereof. The ball portion comprises a greater diameter portion of the ball stud, such as a sphere-segmental head on its extreme end, and a sphere-segmental shell coaxially surrounding the ball stud with a spacing therebetween. The shell has an inturned annular rim at one end thereof in an opposed relation to an annular shoulder provided by the head of the ball stud. A one-piece elastomeric bushing is injection molded in place between the ball stud and the shell. Part of the bushing further fills the annular gap between the shoulder of the ball stud and the inturned rim of the shell. Preferably prestressed, this part of the bushing serves to prevent the development of looseness with the progress of wear and further to minimize the axial displacement of the ball stud relative to the joint housing under load.

Resilient ball and socket joint assembly and method of manufacture

A ball-and-socket joint is protected in sealed state by a boot firmly secured at its outer end to the ball stud of the ball and at its inner end to the joint assembly by a clamping ring made of an elastic material in the form of a coil wound spirally with rectangular-section winding turns thereof lying adjacently side-by-side in the plane of the clamping ring. The spirally-coiled construction, in contrast to a helically-coiled construction, of the clamping ring permits it to be expanded greatly at the time of its fitting in the boot groove for assembly with little permanent deformation, whereby a great clamping force is obtainable.

An easy-to-assemble compressor having a pair of parallel, double-headed pistons reciprocably mounted in respective cylinder chambers in a compressor housing. The pistons are mounted on a crankshaft via Scotch-yoke-type sliders slidably engaged in the respective pistons for reciprocating movement in a direction normal to the piston axis. The sliders convert the rotation of the crankshaft into linear reciprocation of the pistons. The dimensions of these sliders are determined in relation to the other parts of the compressor so that, during the assemblage of the compressor, the sliders may be mounted in position by being passed over the opposite end portions of the crankshaft following the mounting of the pistons and crankshaft within the housing.

Double-acting piston compressor

The ball joint for the suspension system of automobiles, in which as a load-supporting seat, a multi-layer material provided with the synthetic resin layer having self-lubricating ability and abrasion resistance is used on the surface of the back metal, while as an opposite seat to a ball stud, synthetic resin having self-lubricating ability and wear resistance is used, and constituted so as to keep securely load support applied on the ball head by both seats.

Ball joint and a method for manufacturing the ball joint

A ball joint comprises a circular cylindrical housing with at least one opening, a bearing member contained in the housing, a ball stud with its ball head pivotally supported by the bearing member, and a closing plate press-fitted in the opening so as to close the opening and to generate the contact pressure between the bearing member and the ball head.

Ball joint

Disclosed is an inverted cup-shaped cover of deformable material to be fitted over an open socket housing end of a pivotal ball joint assembly. The cover has a pair of opposite end openings, one of which is considerably smaller in diameter than the other and receives therethrough in sealed relationship the shank of a ball stud protruding from the housing through an open end thereof. The cover has a gently curved longitudinal sectional configuration and is flared toward its other end opening at which it is fitted over the open end of the housing. A ring is embedded in the flared portion of the cover and has an inner circumferential edge exposed toward the interior of the cover. This inner edge is sharp-angled and has a diameter slightly smaller than the maximum diameter of the housing at the open end thereof. This ring is formed of resilient material, for example, spring steel.

Growing community of inventors

Toyohashi, Japan

Akira Nemoto