Abrégé

A mounting portion of a disc includes a flat plate portion having a pressing surface to be pressed against a hub of an axle, and a plurality of nut support portions protruding from the flat plate portion to a side opposite to the pressing surface in an axial direction of the disc, and having an annular shape as viewed from the axial direction. A bolt hole is provided to penetrate the nut support portion in the axial direction. The nut support portion includes a bulging portion curving to bulge outward in a radial direction of the nut support portion, and a protruding portion disposed adjacent to the bulging portion in a circumferential direction of the nut support portion, and protruding inward in the radial direction of the nut support portion with respect to the bulging portion.

Classes IPC  ?

• B60B 3/00 - Roues pleines, c.-à-d. roues avec corps en forme de disque supportant la charge
• B60B 3/12 - Moyens de renforcement des disques
• B60B 3/04 - Roues pleines, c.-à-d. roues avec corps en forme de disque supportant la charge à un seul disque ne faisant pas corps avec la jante
• B60B 3/16 - Fixation du disque au moyeu par boulons ou similaires

Abrégé

A plurality of bolt holes through which a plurality of bolts are to be passed are formed in a vehicle wheel disk to be attached to a hub of an axle. The vehicle wheel disk is provided with an attachment portion which is attached to the hub by being tightened thereto using the plurality of bolts and a plurality of nuts. The attachment portion includes a flat plate portion, a plurality of nut supporting portions, and a plurality of pressed portions which are recessed toward the inside in the width direction of the vehicle relative to the flat plate portion. When viewed from the axial direction, if the attachment portion is divided equally in the circumferential direction into the same number of reference regions as the number of the plurality of nut supporting portions, in such a way that the nut supporting portions are respectively positioned at the centers thereof, the pressed portions are provided in each of said same number of reference regions. When viewed from the axial direction, the pressed portions each include a circular or arcuate edge which curves along an outer edge of the nut supporting portion.

Classes IPC  ?

• B60B 3/16 - Fixation du disque au moyeu par boulons ou similaires

Abrégé

The mounting section 18 of a disk 14 has: a flat plate section 24 having a pressing surface pressed against a hub of an axle; and a plurality of nut support sections 26 protruding from the flat plate section 24 in the axial direction of the disk 14 away from the pressing surface, and having an annular shape when viewed in the axial direction. Bolt holes 28 are formed to extend through the nut support sections 26 in the axial direction. The nut support sections 26 have: bulging sections 26b curved to bulge outward in the radial direction of the nut support sections 26; and protrusion sections 26c adjacent to the bulging sections 26b in the circumferential direction of the nut support sections 26, and protruding inward in the radial direction of the nut support sections 26 relative to the bulging sections 26b.

Classes IPC  ?

• B60B 3/16 - Fixation du disque au moyeu par boulons ou similaires
• B60B 3/04 - Roues pleines, c.-à-d. roues avec corps en forme de disque supportant la charge à un seul disque ne faisant pas corps avec la jante