Seat back frame
AssigneesNHK Spring Co., Ltd., Toyota Boshoku Kabushiki Kaisha
InventorsAtsutaka MITSUHASHI, Ryoshu NAKANE, Koji MURAYAMA
Life of this patent
Estimating the term…
Abstract
A seat back frame includes a main frame that forms a frame of a seat back of a main seat, and an auxiliary frame that forms a frame of a seat back of an auxiliary seat adjacent to the main seat in a width direction, and that is integrally formed with the main frame. The main frame has a first open portion that opens toward a side with the auxiliary seat in the width direction. An end portion of the auxiliary frame is a fitting structure that fits together with the first open portion, and a portion of the fitting structure is welded.
Claims4
A seat back frame comprising:
- a main frame that forms a frame of a seat back of a main seat;
- and
- an auxiliary frame that forms a frame of a seat back of an auxiliary seat adjacent to the main seat in a width direction, and that is integrally formed with the main frame, wherein:
- at least a portion of the main frame is formed by a first tube-shaped member;
- the first tube-shaped member has a first open portion that opens toward a side with the auxiliary seat in the width direction;
- at least a portion of the auxiliary frame is formed by a second tube-shaped member;
- an end portion of the second tube-shaped member is a fitting structure that fits together with the first open portion of the first tube-shaped member;
- and
- a portion of the fitting structure is welded such that the main frame and the auxiliary frame are integrally formed.
Dependencies are inferred from the claim text.