Stowable vehicle seat

摘要

A stowable vehicle seat includes a seat support portion that supports a seat cushion rotatably in the front-and-rear direction, a seat back provided with reclining elements that can be folded onto the seat cushion, a stowage recess portion disposed on the vehicle body floor side, a front-side leg portion disposed on the front side of the seat cushion, leg-portion locking elements that lock and unlock the front-side leg portion to and from the vehicle body floor side, a link mechanism connected to the reclining elements and the leg-portion locking elements, and a strap for operating the reclining mechanism and the leg-portion locking elements through the link mechanism, in which the seat back is locked in the folded state in a stowing operation by a pulling operation of the strap.

主权项

1. A stowable vehicle seat comprising:
a first seat support that movably supports one end portion side of a seat cushion; a seat back that is foldable onto the seat cushion through a reclining element; a second seat support disposed on an other end portion side of the seat cushion; a locking and unlocking element that lock and unlock the second seat support and the vehicle body floor side; a link mechanism connected to the reclining element; and an operating element connected to the reclining element and the locking and unlocking element through the link mechanism,wherein:
the reclining element has a reclining mechanism that folds the seat back onto the seat cushion and a detection mechanism that detects a state in which the seat back is folded; the link mechanism has a first link member connected to the operating element, a second link member connected to the reclining mechanism, and a third link member connected to the detection mechanism; the third link member is provided with a locking member that locks and unlocks the second link member; the locking member is a locking projection that comprises a curved surface; the second link member is provided with a locking recess portion that comprises a curved concave portion; the locking projection contacts with the locking recess portion, thereby the second link member is locked to the third link member; and when the detection mechanism detects a state in which the seat back is folded, the third link member is moved and a lock between the locking projection and the locking recess portion is unlocked; the locking projection is held at a location separated from the locking recess portion while the lock between the locking projection and the locking recess portion is unlocked; the third link member is supported to the first link member by a shaft portion; the second link member is provided with a tip portion at an end portion on a side on which the locking recess portion is provided, the tip portion being disposed at a position facing towards the shaft portion of the third link member when the locking projection and the locking recess portion are in an unlocked state; and the tip portion has a taper shape and curves in a direction away from the shaft portion of the third link member when the locking projection and the locking recess portion are in the unlocked state.