A vehicle wheel includes a hub portion attached to a vehicle, a substantially cylindrical rim portion, and a plurality of spoke portions connected to the rim portion and the hub portion. The plurality of the spoke portions have a window portion that penetrates in a wheel axial direction. An inclined surface is provided on a wheel back side of each of the spoke portions such that the inclined surface inclines toward a wheel front side from a center in a wheel circumferential direction toward the window portion. The inclined surface is provided at a portion including one end portion or both end portions in the wheel circumferential direction.

A method for producing a one-piece cast vehicle wheel, the wheel having at least one hub portion connected to a wheel rim via at least one spoke oriented in the radial direction of the wheel, in which at least one lost core is inserted in a molding of the casting machine, the one-piece vehicle wheel is cast, and the lost core is removed from the cast vehicle wheel and thereby forms at least one opening in the spoke. A one-piece cast vehicle wheel formed by the method is also provided.

A method for producing a one-piece cast vehicle wheel, the wheel having at least one hub portion connected to a wheel rim via at least one spoke oriented in the radial direction of the wheel, in which at least one lost core is inserted in a molding of the casting machine, the one-piece vehicle wheel is cast, and the lost core is removed from the cast vehicle wheel and thereby forms at least one opening in the spoke. A one-piece cast vehicle wheel formed by the method is also provided.

A wheel assembly is provided that includes spokes having one or more triangular prisms positioned between inner and outer surfaces of the spokes that impart additional strength.

A wheel for a vehicle comprises a rim to support a tire and a wheel disc connected to the rim and configured to engage an axle hub of a vehicle. The wheel disc comprises one or more spokes extending outwardly from a center section of the wheel disc to the rim, each spoke being formed by a substantially planar curbside spoke member and a substantially planar inside spoke member, The curbside and inside spoke members are oriented transversely to each other and to a portion of the center section lying between the curbside and inside spoke members to define a triangle. A plane of the triangle is substantially parallel to a center axis of symmetry of the disc.

A wheel for a vehicle comprises a rim to support a tire and a wheel disc connected to the rim and configured to engage an axle hub of a vehicle. The wheel disc comprises one or more spokes extending outwardly from a center section of the wheel disc to the rim, each spoke being formed by a substantially planar curbside spoke member and a substantially planar inside spoke member, The curbside and inside spoke members are oriented transversely to each other and to a portion of the center section lying between the curbside and inside spoke members to define a triangle. A plane of the triangle is substantially parallel to a center axis of symmetry of the disc.

A vehicle wheel includes a hub portion attached to a vehicle, a substantially cylindrical rim portion, and a plurality of spoke portions connected to the rim portion and the hub portion. The plurality of the spoke portions have a window portion that penetrates in a wheel axial direction. An inclined surface is provided on a wheel back side of each of the spoke portions such that the inclined surface inclines toward a wheel front side from a center in a wheel circumferential direction toward the window portion. The inclined surface is provided at a portion including one end portion or both end portions in the wheel circumferential direction.

A method for manufacturing a vehicle wheel of the present invention includes a step of performing an edge treatment including deburring of a spoke edge generated by lathe processing. For the edge treatment, a cutting tool as hale type tool for non-rotational processing is used, and the cutting tool is provided with a processing blade having a recessed blade edge having an R shape or polygonal C shape protruding from an outer peripheral surface on a side of a tip end of the rod-shaped cutting tool connected to a rod-shaped shank portion. A processing machine capable of CNC of four or more axes is used. With the cutting tool standing upright against a disc surface, the blade edge of the processing blade is applied to the spoke edge, and the cutting tool is continuously moved relative to the spoke edge along a ridgeline of the spoke edge for scraping.

A method for manufacturing a vehicle wheel of the present invention includes a step of performing an edge treatment including deburring of a spoke edge generated by lathe processing. For the edge treatment, a cutting tool as hale type tool for non-rotational processing is used, and the cutting tool is provided with a processing blade having a recessed blade edge having an R shape or polygonal C shape protruding from an outer peripheral surface on a side of a tip end of the rod-shaped cutting tool connected to a rod-shaped shank portion. A processing machine capable of CNC of four or more axes is used. With the cutting tool standing upright against a disc surface, the blade edge of the processing blade is applied to the spoke edge, and the cutting tool is continuously moved relative to the spoke edge along a ridgeline of the spoke edge for scraping.

The present invention relates to a hubless one-piece wheel comprising: a rim; and a disc integrally formed at the rim and formed by low-pressure casting, wherein the disc is a hubless type including a plurality of spokes and a space at the center of the rim. One side of said each spoke is integrally formed at the rim, and a lug hole is formed in the other side of said each spoke for coupling the wheel to a vehicle body. The plurality of spokes are radially arranged inside the rim, and each of the other sides of the spoke locates in the inner center portion of the rim being separated by the space.