Conveyance seat
AssigneeTs Tech Co., Ltd.
InventorKoji Onuma
Life of this patent
Estimating the term…
Abstract
Rigidity is improved at a part where side frame pieces overlap each other in a side frame. In a vehicle seat provided with a seat back frame, a side frame 10 of the seat back frame has a first side frame piece 20 and a second side frame piece 30 partially overlapping each other in a direction of extension of the side frame 10. The side frame 10 has an overlapping part 40 where both the first side frame piece 20 and the second side frame piece 30 overlap each other. At the overlapping part 40, the side frame pieces overlap each other in a state where a plurality of closed regions 41 and 42 closed by being surrounded by both side frame pieces are formed in a cross section of the overlapping part 40 intersecting with the direction of extension of the side frame 10.
Claims7
A conveyance seat comprising a frame, wherein the frame comprises a side frame that is positioned in a side end portion of the frame, extends in a predetermined direction, and has a first side frame piece and a second side frame piece partially overlapping each other in a direction of extension of the side frame,
- the side frame has an overlapping part where the first side frame piece and the second side frame piece overlap each other and, at the overlapping part, the first side frame piece and the second side frame piece overlap each other in a state where a plurality of surrounded regions surrounded by the first side frame piece and the second side frame piece are formed in a cross section of the overlapping part intersecting with the direction of extension,
- the plurality of surrounded regions is constituted by a front first surrounded region and a rear second surrounded region in the cross section of the overlapping part,
- each of the first side frame piece and the second side frame piece has a first end portion and a second end portion in a direction intersecting each of the direction of extension and a width direction of the conveyance seat,
- the first end portion of the first side frame piece and the first end portion of the second side frame piece overlap, and the second end portion of the first side frame piece and the second end portion of the second side frame piece overlap,
- the first end portions extend towards a middle of the frame from the front first surrounded region in the width direction,
- the second end portions extend towards a middle of the frame from the rear second surrounded region in the width direction, and
- the rear second surrounded region is formed in a larger region than the front first surrounded region.
Dependencies are inferred from the claim text.