SEAT STRUCTURE

摘要

A seat structure. A reinforcing structure in a substantially rectangular frame shape is set in an area where cushion-part side frames and back-part side frames are coupled to each other via reclining mechanism parts, from vicinities of rear portions of the cushion-part side frames up to vicinities of lower portions of the back-part side frames. The reinforcing structure increases unity of a cushion frame and a back frame, and when a load is applied to the back frame due to an impact at the time of a rear-end collision or the like, the load acts as a force deforming mainly the cushion frame via the reinforcing structure, and when the body of a seated person thereafter moves rearward, the load acts as a force deforming mainly the back frame, making it possible to use not only strength of the back frame but also strength of the cushion frame.

主权项

1: A seat structure which includes a seat cushion part and a seat back part coupled to each other via a reclining mechanism part, the seat structure comprising
a reinforcing structure in a substantially rectangular frame shape provided in an area where the seat cushion part and the seat back part are coupled to each other via the reclining mechanism part, from vicinities of rear portions of cushion-part side frames included in a cushion frame of the seat cushion part up to vicinities of lower portions of back-part side frames included in a back frame of the seat back part, the reinforcing structure including a pair of rigid members provided in vicinities of side portions of the area and at least two bridge members arranged at an interval from each other and extending between the pair of rigid members along a left and right direction.