Abstract: Provided is a tilt arm for a seat that is applied to a vehicle seat and that moves in a pivoting manner when changing an angle of inclination of a front end portion of a cushion pad. The tilt arm includes a coupling arm portion pivotably coupled to a side frame of a cushion frame, and a leading-end-side arm portion coupled and fixed to a leading end portion of the coupling arm portion. A sectional shape of a fixed portion, where the coupling arm portion and the leading-end-side arm portion are coupled and fixed to each other, is a closed sectional shape formed by a closed curve. A sectional shape of the coupling arm portion at the fixed portion and a sectional shape of the leading-end-side arm portion at the fixed portion are each an open sectional shape that is partially opened.

Abstract: A vehicle seat having a frame and a shield mounted thereto, wherein the frame has a hole portion or an insertion portion, the shield has an insertion part which is inserted into the hole portion or a hole part into which the insertion portion is inserted, the engaging portion of the shield engages with the engaged portion of the frame in a state where the infix portion is inserted into the cavity portion, and the cavity portion is arranged such that a direction in which the infix portion is inserted into the cavity portion is a direction intersected with the insertion direction of the insertion part relative to the hole portion or the direction intersected with the insertion direction of the insertion portion relative to the hole part.

Abstract: Provided is a tilt arm for a seat that is applied to a vehicle seat and that moves in a pivoting manner when changing an angle of inclination of a front end portion of a cushion pad. The tilt arm includes a coupling arm portion pivotably coupled to a side frame of a cushion frame, and a leading-end-side arm portion coupled and fixed to a leading end portion of the coupling arm portion. A sectional shape of a fixed portion, where the coupling arm portion and the leading-end-side arm portion are coupled and fixed to each other, is a closed sectional shape formed by a closed curve. A sectional shape of the coupling arm portion at the fixed portion and a sectional shape of the leading-end-side arm portion at the fixed portion are each an open sectional shape that is partially opened.

Abstract: A vehicle seat having a frame and a shield mounted thereto, wherein the frame has a hole portion or an insertion portion, the shield has an insertion part which is inserted into the hole portion or a hole part into which the insertion portion is inserted, the engaging portion of the shield engages with the engaged portion of the frame in a state where the infix portion is inserted into the cavity portion, and the cavity portion is arranged such that a direction in which the infix portion is inserted into the cavity portion is a direction intersected with the insertion direction of the insertion part relative to the hole portion or the direction intersected with the insertion direction of the insertion portion relative to the hole part.