| 摘要 |
<p>This invention relates to a recline-locking apparatus for a passenger's seat in which shoulder harness (12) is provided on a seat back (1) for a vehicle, a ship or an aircraft. In a base frame (5), a pair of left and right spreaders (6) are formed each of which is provided with a front support (6a) extending substantially horizontally between front and rear beams (3, 4), and a rear support (6b) projecting from the rear portion of the front support (6a) so as to be inclined in the rearward upward direction, a seat back frame (2) being supported pivotably at its lower end portion on the rear support (6b) of the spreader (6), a bearing being formed on the portion of the seat back frame (2) which is on the upper side of a pivotably supported portion thereof with respect to the rear support (6b) of the spreader (6), and which is on the side of the base frame (5), an arm (13) being fixed to the rear end portion of the front support (6a) of the spreader (6), a guide bore (14) opposed to the bearing formed on the seat back frame (2) being made in the upper portion of the arm (13), a buffer structure (16) being formed in the guide bore (14), a lower end portion (15b) of a lock bar (15) fixed pivotably at its upper end portion to the bearing (2b) of the seat back frame (2) being fitted firmly in the guide bore (14) via the buffer structure (16) so that the lower end portion (15b) of the lock bar (15) can be moved slidingly in the axial direction in the guide bore (14) in the arm (13) in accordance with a reclining movement of the seat back frame (2), an impact load of not lower than a predetermined level imparted to the seat back (1) due to the loss of mechanical energy occurring when the buffer structure (16) is deformed or buckled being damped and absorbed.</p> |
