Aisin Seiki Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

Toho Chemical Industry Co., Ltd.

Hiroshi Kobayashi

Takahito Miyake

Shuo Uematsu

Tomomichi Miura

Kenichi Katae

Michihiko Soutome

A metal bearing having a long operating life that is not affected by the operating temperature. The metal bearing includes a bearing surface capable of slidably contacting with a shaft member, including pores in a surface and interior thereof, and being composed of a sintered compact having a metal or alloy as a main component. A dispersion solvent is provided inside the pores, and maghemite particles exist in the dispersion solvent together with at least one of a gas and a liquid that has a boiling point lower than a boiling point of the dispersion solvent.

Metal bearing

A method of manufacturing a metal-graphite brush material for a motor, which allows high-density formation of copper particles on the surfaces of graphite particles. The method: attaches copper complex to graphite particles; heat-treats the graphite particles attached with the copper particles, thereby to pyrolyze the copper complex to form copper particles on the surfaces of the graphite particles; forms the graphite particles having the copper particles formed thereon, together with a resin, into a formed product; and reduction-sinters the formed product under a reducing atmosphere to pyrolyze the resin, thereby to form a sintered body and also to reduce copper oxide formed in surface layers of the copper particles during the heat-treating.

Method of manufacturing metal-graphite brush material for motor

A motor brush material contains copper particles dispersed and configuring particle group structure supported in inner pores of a sintered body containing carbon as a major component.

Brush material for motor and manufacturing method thereof

Metal graphite material including a molded body having a collectivity of graphite particles and copper particles comprises graphite and copper as main elements, the copper particles including copper microparticles where each copper microparticle having average diameter between 5 and 100 nm contacts, and a cluster of the copper microparticles fixed on a surface of the graphite particle to form a conductive path of the contacting copper microparticles on the surface of the graphite particle, wherein a charge induced from the graphite particle is conducted, and a method for making metal graphite material comprises the steps of: applying a solution including metal complex whose main element is copper on a surface of a graphite particle and forming a coating film of the solution on the surface of the graphite particle, and calcinating a molded body of a collectivity of the graphite particles on which the coating films are formed under an oxygen including atmosphere, and heating the molded body under a deoxidizing atmosphere.

Metal graphite material and production method thereof

A cap nut to be enveloped in a casting made of casting material includes a substantially cylindrical body. The body has a first end and a second end adjacent to a top end surface of the body. The body has a hole and an outer peripheral surface to be enveloped in the casting material. The body has an exposed surface adjacent to the hole at the first end thereof, and the exposed surface is exposed to an outside of the casting. The body has formed in the outer peripheral surface thereof a tapered surface that broadens from the second end of the body toward the first end. The body has formed in the tapered surface a retaining means for preventing the cap nut from falling off from the casting. The body is installable in and removable from a pattern for forming a sand mold at the tapered surface.

Cap nut for envelopment casting, casting including the cap nut and method of enveloping the cap nut in casting

An axle supporting structure for supporting an axle beam for an industrial vehicle includes a center pin, a pair of axle supporting units and a counterweight. The center pin protrudes from the axle beam. Each axle supporting unit has formed therethrough an insertion hole in which the center pin is inserted. The axle supporting unit has an upper axle supporting member and a lower axle supporting member which is detachably connected to the upper axle supporting member. The pair of axle supporting units is spaced from each other in a traveling direction of the vehicle. The center pin is rotatably supported between the pair of axle supporting units. The upper axle supporting members of the axle supporting units are cast in the counterweight.

Axle supporting structure for industrial vehicle and industrial vehicle having the same

A structure of mounting a weight in a forklift truck which has a frame and the weight that is to be connected and fixed to the frame by a bolt and a nut includes a first hole, a second hole, a first fitting part and a second fitting part. The first hole is formed through the frame. The second hole is formed through the weight in such a manner that the first hole and the second hole correspond to each other. The first fitting part is formed on the frame. The second fitting part is formed on the weight in such a manner that the first fitting part and the second fitting part fit to each other and that the first hole and the second hole are aligned with each other when the frame and the weight are combined together.

Structure of mounting weight in forklift truck

A metal-graphite brush for supplying electricity to a coil wound around a core provided at a rotor of a motor is made of sintered material having porosities at a surface and inside thereof, and the porosities is infiltrated with a conductive liquid having a boiling point higher than that of water.

Metal-graphite brush and motor including metal-graphite brush

An industrial vehicle includes a vehicle body, a pair of rear wheels, a rear axle for supporting the rear wheels, a lock cylinder, a counterweight and a coupling portion. The rear axle is supported to be pivotable relative to the vehicle body. The lock cylinder is located between the vehicle body and the rear axle. The lock cylinder limits pivoting of the rear axle. The counterweight forms a rear portion of the vehicle body. The counter weight supports the rear axle. The coupling portion is integrally formed with the counterweight to couple the fluid pressure cylinder with the vehicle body. This reduces the number of components and the manufacturing steps of the industrial vehicle.

Industrial vehicle having body structure

A method of making a casting having a cast portion and a cap nut includes forming a hole with a stepped shape in the cap nut to have a large-diameter hole on an opening side and a threaded small-diameter hole on a bottom side, inserting a fixing member into the large-diameter hole, supporting the fixing member in a sand mold, pouring a casting material into the sand mold so that the cap nut is enveloped in the cast portion and that a first surface of the cap nut adjacent to the hole is exposed outside without being covered with a second surface of the cast portion, and removing the fixing member from the cap nut after the casting is taken out of the sand mold.

Casting and method of making such casting

A metal-graphite brush for supplying electricity to a coil wound around a core provided at a rotor of a motor is made of sintered material having porosities at a surface of, or inside, the sintered material. The metal-graphite brush is infiltrated by a liquid containing a plurality of kinds of glycol ether having varying numbers of alkylene oxide structure units. The liquid has a boiling point higher than that of water.

Growing community of inventors

Kariya, Japan

Hiroshi Kobayashi