There is provided a cushion spring including: a formed wire bridged to a seat cushion frame in a seat front-rear direction; and a resin member joined to the formed wire. A center wire and a side wire of the formed wire each include a plurality of crank-shaped portions that are bent to fold in a crank shape to one side and the other side in a seat width direction alternately. The resin member includes a deflection restricting portion that connects the plurality of crank-shaped portions to restrict a divergence in the seat front-rear direction between three or more crank-shaped portions, the three or more crank-shaped portions being formed in the side wire and arranged side by side consecutively in the seat front-rear direction.
CUSHION SPRING
2025-01-16
Patent
Electronic Resource
English
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |