TACHI-S CO., LTD.

There is provided a technique by which posture changing can be given to an occupant while the forward shift of his/her hip portion is prevented. A seat for vehicle includes a seat cushion, and a seat back coupled to the seat cushion, and the seat back includes a posture changing mechanism having a back face supporting mechanism. There is provided a technique by which a fatigue reduction operation using the posture changing mechanism includes a) moving the back face supporting mechanism set to a position of a lumbar spine portion of an occupant from a first position state to a rear direction side and setting the back face supporting mechanism to a second position state, and b) thereafter, moving the back face supporting mechanism stepwise to a front direction side from the second position state to the first position state.

A clip has a base portion embedded in a seat body and two locking portions formed on an upper surface of the base portion. The locking portions are arranged longitudinally in a front-rear direction on the upper surface of the base portion, and each locking portion is composed of a pair of locking piece portions extending upward and facing each other. Each locking piece portion has an extension portion connected to the upper surface of the base portion and a claw portion connected to an upper end of the extension portion. One of the locking piece portions is a one-sided locking piece portion, and the other is an elastic locking piece portion. An elastic force of the elastic locking piece portion is smaller than that of the one-sided locking piece portion, and therefore the elastic locking piece portion is more easily elastically deformed than the one-sided locking piece portion.

A head rest includes: a stay supported by a seat back of a vehicle seat; and an accommodation member forming an accommodation space for accommodating a part of the stay, in which the accommodation member includes a first member, a second member, and third member, the first member and the second member being disposed side by side in a front-rear direction of the vehicle seat, and the third member covering a space between the first member and the second member, and in which the third member includes a pair of side surface portions and an upper surface portion, the pair of side surface portions being disposed side by side in a left-right direction of the vehicle seat, and the upper surface portion connecting end portions of the pair of side surface portions on an upper side of the vehicle seat.

A vehicle seat for improving the workability of installation work of a side finisher is provided. Since displacement of the side finisher in up-down and left-right directions is restricted with a guide projection engaged with a guide hole (with the guide projection slid to the end position), relative positions between the claws and the fitting holes can be generally determined by the guide projection being slid to the rear side along the guide hole. In contrast, since the claws and the fitting holes are not formed on the front side of the guide projection, relative positions between these fitting portions only need to be adjusted only on the rear side of the guide projection. Since this can facilitate the fitting of the claws into the fitting holes while adjusting relative positions between the claws and the fitting holes, the workability of installation work of the side finisher can be improved.

A plurality of pressing portions 38 protrude inward in a radial direction from an inner peripheral surface of a tubular main body portion 35 (part of a tube body) and are each fixed at both ends thereof in an up-down direction to the main body portion 35 . Since the plurality of pressing portions 38 are aligned in the up-down direction, a stay 22 or 23 can be inhibited from oscillating with a contact portion between one pressing portion 38 and the stay 22 or 23 as a fulcrum. As a result, rattling of the stay 22 or 23 relative to a headrest holder 30 or 31 can be suppressed.

To provide a bolster, the versatility of which can be improved. A bolster has an upper part formed by covering a pad by a bag portion composed of a skin member and a skin piece. Consequently, even when a back surface of the bolster protrudes from a side wall of a car compartment, the pad, a bracket, and the like can be made less likely to be exposed to a car interior as long as the protrusion is within the range of the provided skin piece. Therefore, the shape of the bolster within the range of the provided skin piece does not have to match the shape of the side wall, whereby the versatility of the bolster can be improved.

To provide an armrest that enables suppression of deterioration of the mountability of an accommodation member to a frame and that can make it less likely for the accommodation member to be detached from the frame. A claw of a second engaging portion and a second to-be-engaged portion are opposed to each other in a first direction (the direction of arrows U-D) over an overlap length in a state where an extending portion of the second engaging portion has been brought into contact with an outer peripheral surface of a body portion by elastically deforming the extending portion about a base side from a state where the claw is hooked on the second to-be-engaged portion.

The present invention provides a structure that: prevents wear of a motor and a gear; reduces time and effort required to replace or repair either the motor or the gear when it is broken due to an excessive input; and facilitates the adjustment in the speed and the motion range of the armrest. An armrest is provided which comprises: an armrest frame attached rotatably about a rotation axis of a seat frame of a seatback; a sector gear integrated with the seat frame; sector gear teeth provided with respect to the sector gear; a motor having a pinion gear meshed with the sector gear teeth; a motor unit including the motor; and a fastening member for fastening the motor unit to the armrest frame.

A vehicle seat capable of improving the workability of installation work of a side finisher is provided. Displacement of the side finisher in an up-down direction is restricted when a guide projection slides in a guide groove, and displacement in a left-right direction is also restricted when it has slid to the rear end of the guide groove. Accordingly, the relative positions between the fitting holes and the fitting projections can be easily determined by sliding the guide projection to the rear end of the guide groove. Since the guide projection is formed on the rear side of the fitting projections, the side finisher can be easily bent outward in the left-right direction in a region in which the fitting projections are formed. Since the fitting projections can be easily fitted into the fitting holes, the workability of installation work of the side finisher can be improved.

The armrest support structure is capable of ensuring an appearance quality on the upper side of a hinge cover and capable of making it less likely for a garment or the like to be caught on said upper side. A reverse flange protruding upward from an upper part of a hinge cover is inserted into an opening and extends along a reverse side of a front surface of a skin material, whereby the reverse flange can restrict recession of the skin material on the upper side of the hinge cover. Therefore, an appearance quality on the upper side of the hinge cover can be ensured, and it can be made less likely for a garment or the like to be caught between the upper side of the hinge cover and the skin material.