Patent ID: 8689922
Filing Date: 2014-04-08
Classification: B62K

Abstract:
1. A vehicle body frame comprising: a right frame member having a right connecting hole extending through the right frame member in a vehicle widthwise direction; a left frame member having a left connecting hole extending through the left frame member in the vehicle widthwise direction, the left frame member being spaced from the right frame member in the vehicle widthwise direction, the left connecting hole being disposed substantially coaxially with the right connecting hole; a cross member fitted in both of the left connecting hole and the right connecting hole and welded to the left frame member and the right frame member, the cross member including a pipe member having a hollow portion which has a first end, a second end opposite to the first end along the hollow portion, a first opening at the first end, and a second opening at the second end; and a first patch member fitted in the first end of the hollow portion and welded to an inner peripheral face of the hollow portion such that a weld bead is provided within a range of a first welding margin provided in the first end of the hollow portion, the first welding margin being provided on the inner peripheral face of the hollow portion, an axial outer end surface of the first patch member being disposed more to an axial inner side in the hollow portion than an axial outer end surface of the hollow portion, the weld bead being disposed more to the axial inner side in the hollow portion than the axial outer end surface of the hollow portion, wherein the hollow portion includes a tapered surface that extends from the axial outer end surface to an inner peripheral surface of the hollow portion, and wherein the weld bead is disposed more to the axial inner side in the hollow portion than the tapered surface.