Topy Kogyo Kabushiki Kaisha

Kei Takagi

Yoshinobu Sakashita

Tetsu Sano

Kikuya Ito

Yuji Kihara

Yuta Isomura

A vehicle wheel having a rim and a disk. A disk flange of the disk may have a non-contact portion non-contacting a radially inner surface of the rim, at a radially outer extension of a width center line of a spoke. As a result, the rigidity of a portion of the disk in the circumferential direction of the wheel where the spoke is provided may be decreased compared with a wheel (conventional) where such non-contact portion is not provided. A difference in rigidity of the disk in the circumferential direction of the wheel between a portion where the vent window is provided and a portion where the spoke is provided may be smaller than that in the case of the conventional wheel, whereby a durability of the wheel and a run-out accuracy of the wheel may be improved.

Vehicle wheel

A wheel for vehicle comprising: a rimhaving a drop portion; and a diskformed integrally from a plate material, the rim and the disk being welded together, wherein the disk has: a hub mounting portion; a plurality of spokesradially extending from the hub mounting portion toward an outer periphery of the disk; and a ring-shaped disk flangethat is connected to the spokes through a curved-surface connecting portion R that is formed by bending the spokes at an outer circumferential end thereof in a wheel axial direction, the disk flange extends in the wheel axial direction, and a decorative holeis defined by the adjacent spokes, the hub mounting portion, and the disk flange, and a part that faces a distal endof the spoke in a fitting area between an inner circumferential surface of the rim and an outer circumferential surface of the disk flange is welded.

Wheel for vehicle

A method comprising: a step of preforming a plurality of bulging portions on a substantially circular plate blank, the bulging portions being located concentrically and circumferentially outward of a bolt hole, each of the bulging portions being a base of a reinforcing portion of a spoke; a step of forming a plurality of prototypical decorative holes on the respective bulging portions to form a prototypically-shaped spoke between the adjacent prototypical decorative holes; a step of forming a disk flange by bending an outer circumferential portion of the plate blank, on which the prototypical decorative holes are formed, at a right angle to be substantially parallel to a wheel axial direction, so that an outer periphery of a resultant decorative hole forms an upper end edge of the disk flange; and a step of forming the spoke by providing the prototypically-shaped spoke with the reinforcing portion.

Growing community of inventors

Tokyo, Japan

Kei Takagi