초록 ▼

It is an object of the present invention to provide a vehicle wheel which can be manufactured at low cost, exhibits superior design characteristics, and with which mechanical strength can be adequately ensured. The vehicle wheel has a construction that is split into an outer-rim member that constitu

It is an object of the present invention to provide a vehicle wheel which can be manufactured at low cost, exhibits superior design characteristics, and with which mechanical strength can be adequately ensured. The vehicle wheel has a construction that is split into an outer-rim member that constitutes an outer-rim part, and a wheel-constituting member comprising an integral molding that constitutes an inner-rim part and disk part, wherein the outer-rim member end portion on the attachment face side is formed so as to be capable of fitting over the wheel-constituting member; an annular groove is formed in the engaging face of the wheel-constituting member which engages with the outer-rim member; and the outer-rim member is integrally fastened to the wheel-constituting member by press-fitting the outer-rim member end portion on the attachment face side inside the annular groove.

대표청구항 ▼

1. A vehicle wheel with a construction that is split into an outer-rim member which constitutes an outer-rim part, and a wheel-constituting member comprising an integral molding that constitutes an inner-rim part and a disk part,wherein the outer-rim member end portion on an attachment face side is

1. A vehicle wheel with a construction that is split into an outer-rim member which constitutes an outer-rim part, and a wheel-constituting member comprising an integral molding that constitutes an inner-rim part and a disk part,wherein the outer-rim member end portion on an attachment face side is formed so as to be capable of fitting over the wheel-constituting member; an annular groove is formed in an engaging face of the wheel-constituting member which engages with the outer-rim member; and the outer-rim member is integrally fastened to the wheel-constituting member by press-fitting an outer-rim member end portion on the attachment face side inside the annular groove; and wherein a reinforcing covering part that covers the outer-rim member end portion which is press-fitted inside the annular groove is formed on the attachment face side of the annular groove in said wheel-constituting member. 2. The vehicle wheel according to claim 1, wherein the end portion of the outer-rim member is joined to the wheel-constituting member by friction stir welding.3. A vehicle wheel manufacturing method, wherein a substantially tubular outer-rim member which constitutes an outer-rim part is manufactured from a rolled plate; a wheel-constituting member comprising an inner-rim part and a disk part is manufactured by forging or casting; an outer-rim member end portion on an attachment face side is formed so as to be capable of fitting over the wheel-constituting member;an annular groove is formed in an engaging face of the wheel-constituting member which engages with the outer-rim member; and the outer-rim member is integrally fastened to the wheel-constituting member by pressure-deforming the outer-rim member end portion on the attachment face side so that this end portion is press-fitted inside the annular groove. 4. A vehicle wheel manufacturing method wherein,on manufacturing an outer-rim member which constitutes an outer-rim part, and a wheel-constituting member comprising an integral molding that constitutes an inner-rim part and a disk part, a substantially tubular outer-rim member which constitutes the outer-rim part is manufactured from a rolled plate, said outer-rim member end portion on an attachment face side being formed so as to be capable of fitting over the wheel-constituting member; an annular groove is formed in an engaging face of the wheel-constituting member which engages with the outer-rim member; a wheel-constituting member in which a flange part is formed so as to follow the annular groove on the attachment face side of said annular groove, is formed by forging or casting; an outer-rim member is mounted by being fitted over the wheel-constituting member until the outer-rim member end portion on the attachment face side contacts said flange part, whereupon the outer-rim member end portion on the attachment face side is pressure-deformed so as to be press-fitted inside the annular groove; and a flange part is then pressure-deformed so that a reinforcing covering part, which covers the outer-rim member end portion on the attachment face side which is press-fitted inside the annular groove, is formed. 5. The vehicle wheel manufacturing method according to claim 3 or 4, wherein the end portion of said outer-rim member is joined to the wheel-constituting member by friction stir welding after the outer-rim member is fastened to the wheel-constituting member.