Topy Kogyo Kabushiki Kaisha

Topy Koygo Kabushiki Kaisha

Saburo Maruyama

Kishiro Abe

Kentaro Oba

Isao Tanaka

Shunji Kobayashi

Katsuji Shibusawa

Jun Sakuma

Takanori Saito

Mitsunori Sugawara

A balance weight for a wheel of a two-wheel vehicle includes a weight body made from metal other than lead and a clip made from spring steel. The weight body includes a U-shaped transverse cross-section and a groove for mounting the clip therein. The weight body further includes a groove bottom wall and a pair of groove side walls connected to opposite width ends of the groove bottom wall. The clip includes a bottom portion and a pair of arms connected to opposite width ends of the bottom portion of the clip. The clip is mounted to the groove bottom wall of the weight body with the bottom portion of the clip contacting closely to the groove bottom wall of the weight body. The clip and the weight body are coupled to each other by a mechanical coupling. The coupling may be replaced by a local welding.

Balance weight for a wheel of a two-wheel vehicle

A balance weight for a two-wheeled vehicle includes a weight made from iron and a clip made from spring steel. The weight includes a first axial end, a second, opposite axial end, a transversely extending intermediate surface, and a first laterally extending groove for holding the clip therein having a groove bottom portion and a groove inlet portion which is smaller in width than the groove bottom portion. The clip includes a pair of arms, a connecting portion, an engaging portion formed in the connecting portion, a bent portion bent from the connected portion toward a space between the pair of arms, and an obliquely extending portion extending obliquely in a direction away from the transversely extending intermediate surface of the weight.

Balance weight for a two-wheeled vehicle

A wheel balance weight including a plurality of weight bodies of at least one kind and an adhesive double-coated tape. Each of the plurality of weight bodies is made from a metal other than lead and the side surfaces of adjacent weight body are tapered. The balance weight may include one or more weight bodies each having a predetermined weight of W and W/n. The balance weight may include one or more weight bodies each having a predetermined weight of W and a summation of W/n and W. A method of manufacturing a balance weight includes: producing a bar material having tapered surfaces at opposite sides, cutting the bar material into a plurality of weight bodies, and attaching the plurality of weight bodies to an adhesive double-coated tape. Alternately, a method of manufacturing a balance weight may include: producing a bar material, punching the bar material by a punch and a die so that cut planes are tapered thereby manufacturing a plurality of weight bodies, and attaching the plurality of weight bodies to an adhesive double-coated tape.

Wheel balance weight and a method of manufacturing the same

A wheel balance weight is made from ductile cast iron and is formed by casting. The wheel balance weight includes a weight body accurately extending along a flange of a wheel and a clip coupled to the weight body. The weight body includes a groove at a longitudinally central portion of the weight body. The clip is fit into the groove and is fixed to the weight body by caulking the width sides of the groove. The weight body may have a pillar at a bottom surface of the groove and a clip may have an aperture for accommodating the pillar pass through. By caulking a head of the pillar after letting the pillar pass through the aperture of the clip, coupling of the weight body with the clip is strengthened.

Wheel balance weight

A wheel for an automobile and a manufacturing method therefor wherein, in manufacturing a disc material portion from a substantially flat square plate, a length of the side of the substantially flat square plate is selected so that, after the subsequently formed disc is pressed into a rim, a most recessed portion of a ventilation is located axially outside a center of curvature of a well radius of the rim.

Wheel for an automobile and a manufacturing method therefor

In a method for producing a cast aluminum wheel, a cast aluminum wheel is produced, and then all of three strengthening processes are applied to the cast aluminum wheel. The three strengthening processes include forging a portion of the cast wheel between adjacent boltholes, burnishing a nut seat of the cast wheel, and shot blasting a hub coupling surface of the cast wheel.

Growing community of inventors

Ayase, Japan

Saburo Maruyama