VEHICLE SEAT

摘要

A vehicle seat includes a cushion frame, a base portion, and a guide structure. The guide structure includes a rail and a rolling mechanism. The rolling mechanism includes an upper guide roller, a lower guide roller, and a roller holder. The rolling mechanism is sandwiched by an upper rolling surface and a lower rolling surface of the rail. The guide structure is configured such that when an occupant load is input to the cushion frame, the guide roller and the rolling surface at one of a first contact point or a second contact point come relatively close together, such that pressure increases, due to a relative position of the roller holder and the rail changing, with the other of the first contact point or the second contact point as a reference point.

主权项

1. A vehicle seat comprising:
a cushion frame; a base portion that supports the cushion frame; and a guide structure by which the cushion frame is movably guided in a front-rear direction with respect to the base portion, wherein the guide structure is configured such that a rail that is continuous in the front-rear direction, and a rolling mechanism that rolls inside the rail, are interposed between the cushion frame and the base portion; the rolling mechanism includes an upper guide roller formed in a relatively high position, a lower guide roller formed in a relatively low position, and a roller holder that rotatably supports the upper guide roller and the lower guide roller; the rolling mechanism is sandwiched by an upper rolling surface of the rail, on which the upper guide roller rolls, and a lower rolling surface of the rail, on which the lower guide roller rolls; and the guide structure is configured such that when an occupant load is input to the cushion frame, the guide roller and the rolling surface at one of a first contact point where the upper guide roller contacts the upper rolling surface or a second contact point where the lower guide roller contacts the lower rolling surface come relatively close together, such that pressure increases, due to a relative position of the roller holder and the rail changing, with the other of the first contact point or the second contact point as a reference point.