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JP-2026074577-A - Vehicle seats

JP2026074577AJP 2026074577 AJP2026074577 AJP 2026074577AJP-2026074577-A

Abstract

[Problem] To provide a vehicle seat that can more appropriately hold the armrest in the stowed position. [Solution] The vehicle seat 1 includes a seat back 2 and an armrest 4 that can move between a stored state, where it is stored in the seat width direction by rotation relative to the seat back 2, and an extended state, where it is folded forward and stored. The vehicle seat 1 also includes a back pad 2A that forms the pad material of the seat back 2, and undulating parts 5 that give undulations to the adjacent surfaces of the back pad 2A so that it overlaps the front side of the armrest 4 when the back pad 2A is in the stored state. [Selection Diagram] Figure 5

Inventors

  • 山本 圭介
  • 齊藤 孝夫
  • 中尾 知裕

Assignees

  • トヨタ紡織株式会社

Dates

Publication Date
20260507
Application Date
20241021

Claims (6)

  1. A vehicle seat having a seat back and an armrest that can move between a stored state, where it is stored so as to be aligned in the width direction of the seat by rotation relative to the seat back, and an extended state, where it is folded forward and extended, The back pad forming the pad material of the aforementioned seat back, A vehicle seat having a back pad with raised sections on each of its adjacent surfaces such that the back pad extends over the front of the armrest when the armrest is retracted.
  2. A vehicle seat according to claim 1, A vehicle seat in which the aforementioned undulating portion is a stepped portion that brings the back pad and the armrest facing each other in the thickness direction only at the midpoint of their respective thickness directions.
  3. A vehicle seat according to claim 1 or claim 2, A vehicle seat having a seat back that has a storage recess opening forward of the seat so that the armrest can be stored in a portion of the seat width direction.
  4. A vehicle seat according to claim 1 or claim 2, A vehicle seat having a portion of the back pad that extends over the front side of the armrest, and/or a portion of the armrest that extends over the rear side of the back pad, made of urethane foam.
  5. A vehicle seat according to claim 1 or claim 2, A vehicle seat having a chamfered portion in which the part of the armrest that extends over the rear side of the back pad curves toward the rear of the seat, gradually moving away from the surface adjacent to the back pad.
  6. A vehicle seat according to claim 1 or claim 2, A vehicle seat in which the aforementioned undulating portion is set to a position higher than the center of gravity of the retracted armrest.

Description

This invention relates to a vehicle seat. More specifically, it relates to a vehicle seat having a seat back and armrests that rotate relative to the seat back to be stowed in the width direction of the seat, or extend forward to be folded down. Patent Document 1 discloses an armrest that can be stored in the center of a three-seater seatback. The armrest can be switched between functioning as a backrest when stored in the center of the seatback and as an elbow rest when folded forward from the seatback. When stored in the center of the seatback, the armrest is held in place by the elastic force received from the back pad of the adjacent seatback. Patent No. 6834410 This is a perspective view of a vehicle seat according to the first embodiment.This is a front view of the seatback.This is a perspective view showing the armrest in its extended state.This is a perspective view of the armrest alone.This is a cross-sectional view along the line V-V in Figure 2. The embodiments for carrying out the present invention will be described below with reference to the drawings. 《First Embodiment》 (Outline of Sheet 1 structure) First, the configuration of the seat (vehicle seat) 1 according to the first embodiment of the present invention will be described using Figures 1 to 5. In the following description, when directions such as front, back, up, down, left, and right are indicated, they refer to the respective directions shown in each figure. The directions shown in each figure are those viewed from the perspective of a seated occupant of the seat 1. Also, when "seat" is added to each direction, such as "seat width direction," it refers to the respective direction relative to the seat 1. As shown in Figures 1 and 2, the seat 1 according to this embodiment is configured as a rear seat installed in an automobile. Specifically, the seat 1 is configured as a bench seat capable of seating three people in a row. The seat 1 has a seat back 2 that serves as a backrest, a seat cushion (not shown) that serves as a seating area, and a headrest 3 that serves as a headrest. The seatback 2 is configured with a 6:4 split between the left and right sides. Figures 1 and 2 show the 6-sided split seatback 2. This 6-sided seatback 2 is configured to serve as the backrest for two seats: the right-hand seat and the center seat. Two headrests, one for the right seat and one for the center seat, are mounted on the upper part of the seatback 2. The center seat headrest 3 has a saddle-like structure. The front, hanging portion of this center seat headrest 3 is designed to fit into a recess in the cutout upper front section of the seatback 2. The central seat portion of the seatback 2 is comprised of an armrest 4 that can be extended to function as an elbow rest. The armrest 4 is considered a component of the seat 1. The armrest 4 can be stored adjacent to the right seat portion of the seatback 2 in the seat width direction (see Figures 1-2), or extended by folding forward (see Figure 3). Specifically, the armrest 4 is rotatably connected at its left and right base ends to a bracket (not shown) attached to the seatback 2's frame via a hinge C extending in the seat width direction. This allows the armrest 4 to be switched between the retracted position shown in Figures 1 and 2 and the extended position shown in Figure 3 by rotation. The armrest 4 is tilted forward to the extended position shown in Figure 3, where it engages with a stopper and bracket (not shown) to lock into place. Furthermore, the armrest 4 is raised to the retracted position shown in Figures 1 and 2, where it engages with the right-hand portion of the adjacent seatback 2, rubbing against it and holding it in place. This ensures that the armrest 4 remains in place even during sudden braking of the vehicle, preventing it from tilting forward from the seatback 2. (Seat back 2) The following describes in detail the configuration of the seat back 2 and the armrest 4. The seat back 2 has a metal back frame (not shown) that forms its internal skeleton and a back pad 2A made of urethane foam that forms the cushioning material. The seat back 2 also has a fabric back cover 2B that covers the surface of the back pad 2A. The back frame (not shown) forms the skeletal structure along the top, bottom, left, and right edges of the seat back 2. The back pad 2A is assembled to cover the back frame from the front of the seat. The back pad 2A has a recess in its central seat portion that forms a storage recess 2C from which the armrest 4 can be stored from the front of the seat. The recess forming the storage recess 2C of the back pad 2A is shaped to be deeper towards the rear of the seat than the upper front portion into which the front hanging portion of the saddle-shaped headrest 3 fits. The back cover 2B is constructed by sewing together multiple cover pieces, each cut to match the shape of the various surfaces of the seat back 2, to form a single bag shape. The back cover 2B is fitted and sec