Patent ID: 9744892
Date: 2017-08-29
CPC Classifications: B60N

Claim:
1. A vehicle seat frame comprising: a pair of side frames constituting side portions of a seat cushion frame; a pair of collar members having a cylindrical shape, the collar members being rotatably attached to the respective side frames; a pair of link members, each of the link members having a first end portion secured to a corresponding one of the collar members, and a second end portion pivotably attached to a vehicle body; and a pipe member coaxially secured at respective end portions to the collar members, wherein at least one of the collar members has an outer diameter that is substantially equal to an outer diameter of the pipe member, a contact surface portion having a reduced outer diameter is formed in an end portion of a first member, the end portion of the first member being brought into contact with a second member, the first member and the second member are secured to each other by welding, with the contact surface portion kept in contact with an inner peripheral portion of the second member.