Patent ID: 8033608
Filing Date: 2011-10-11
Classification: B60N

Abstract:
1. A vehicle seat comprising: a pair of base frames supporting a seat portion of a vehicle; a pair of backrest support arms of which front ends are rotatably supported relative to side surfaces of both base frames; a rotation lock mechanism for controlling forward-and-upward rotation of both backrest support arms placed at a predetermined fixed position relative to the both base frames; a backrest rotatably supported by rear ends of the both backrest support arms; a reclining mechanism for adjusting a reclining angle of the backrest relative to the both base frames, wherein the reclining mechanism is configured to position the backrest at an upright angle within a predetermined reclining angle range between a maximum rearward adjustment angle and a maximum forward adjustment angle and to allow the backrest to incline forward beyond the maximum forward adjustment angle to a maximum forward tilt angle; and wherein actuation of the operation member triggers movement of the operation lever to unlock the rotation lock mechanism such that the support arm operation mechanism permits forward-and-upward rotation of both backrest support arms from the fixed position when the backrest is moved towards the maximum forward tilt angle, and wherein the support arm operation mechanism inhibits rotation of both backrest support arms from the fixed position when the backrest is is moved within the predetermined reclining angle range.