JP-7854930-B2 - Vehicle seats

JP7854930B2JP 7854930 B2JP7854930 B2JP 7854930B2JP-7854930-B2

Inventors

大隈敬
松井雄大
松本学
平山健太

Assignees

テイ・エステック株式会社

Dates

Publication Date: 20260507
Application Date: 20221222

Claims (11)

A vehicle seat comprising a seat cushion and a seat back, The aforementioned seat back includes a seat back frame that constitutes the skeleton, The aforementioned seat back frame is A main frame having a first frame portion, a second frame portion positioned opposite to the first frame portion at a distance from it, a third frame portion connecting one end of the first frame portion and the second frame portion, and a fourth frame portion connecting the other ends of the first frame portion and the second frame portion, the fourth frame portion positioned opposite to the third frame portion at a distance from it, A pan frame fixed to the main frame, the pan frame being positioned to cover the main frame from the front or rear, A first cross member connects the first frame portion and the second frame portion at a position between the third frame portion and the fourth frame portion, A second cross member connects the first frame portion and the second frame portion at a position between the first cross member and the fourth frame portion, The first frame portion is fixed to a reinforcing member , The pan frame has a through hole that is elongated in the direction in which the first frame portion and the second frame portion face each other, and is located at a position that overlaps with the portion between the first cross member and the second cross member. The reinforcing member is characterized in that it extends at least from the first cross member to the second cross member in the opposing direction in which the third frame portion and the fourth frame portion face each other .
The seat back frame further comprises a second reinforcing member fixed to the second frame portion, The vehicle seat according to claim 1, characterized in that the second reinforcing member extends at least from the first cross member to the second cross member in the opposing direction.
One end of the reinforcing member in the opposing direction overlaps with the end of the first cross member that is closer to the first frame portion. The vehicle seat according to claim 1, characterized in that the other end of the reinforcing member in the opposing direction overlaps with the end of the second cross member that is closer to the first frame portion.
The vehicle seat according to claim 2, characterized in that the second reinforcing member is closer to the through hole than the reinforcing member.
The vehicle seat according to claim 2, characterized in that the length of the second reinforcing member in the opposing direction is longer than the length of the reinforcing member in the opposing direction.
A pair of first holders arranged in the opposing direction for holding the first headrest, the pair of first holders fixed to the first frame at a position between the first cross member and the third frame in the opposing direction, A pair of second holders, arranged in the opposing direction, for holding the second headrest, further comprising a pair of second holders fixed to the first frame at a position between the second cross member and the fourth frame in the opposing direction, One end of the second reinforcing member in the opposing direction is located between the pair of first holders in the opposing direction. The vehicle seat according to claim 2, characterized in that the other end of the second reinforcing member in the opposing direction is located between the pair of second holders in the opposing direction.
The second frame portion has a straight portion extending in the opposing direction and an end portion that bends and extends from the end of the straight portion in the opposing direction. The vehicle seat according to claim 2, characterized in that the second reinforcing member is fixed to the straight portion.
The vehicle seat according to claim 1, characterized in that the reinforcing member has a pair of through holes provided at intervals in the opposing directions.
A linear member made of wire, further comprising a linear member having a first fixed end fixed to the reinforcing member by welding at one end and a second fixed end fixed to the reinforcing member by welding at the other end , The vehicle seat according to claim 1, characterized in that the first fixed end and the second fixed end form a V-shape when viewed from the front .
The reinforcing member is It consists of plate-shaped members, It has a first part and a second part extending from the end of the first part in a direction different from that of the first part, The first frame portion is positioned so as to fit into the recess formed by the first portion and the second portion . The vehicle seat according to claim 9 , characterized in that the second portion has a notch to avoid interference with the linear member .
The aforementioned seat cushion comprises a seat cushion frame that constitutes the skeleton, a seat cushion pad that covers the seat cushion frame, and a seat cushion surface that covers the seat cushion frame and the seat cushion pad. The seat for a vehicle according to any one of claims 1 to 10, characterized in that the seat back comprises a seat back pad covering the seat back frame and a seat back surface covering the seat back frame and the seat back pad.

Description

This invention relates to a vehicle seat comprising a seat cushion and a seat back. Conventionally, a seat back frame for a vehicle seat is known to be constructed using a panel material made of a substantially rectangular metal plate and a frame material formed in a frame shape and joined to the panel material (for example, Patent Document 1). Japanese Patent Publication No. 2019-206330 This is a perspective view of a vehicle seat according to an embodiment.This is a perspective view of the seat cushion frame and seat back frame.This is a perspective view of the seat back frame.This is a perspective view (a) showing a magnified view of the area around the upper reinforcing member of the seat back frame, and a perspective view (b) of the striker.This is a cross-sectional view taken along line V-V in Figure 4(a).This is a front view of the seat back frame.This is a front view showing a close-up of the area around the upper reinforcing member of the seat back frame.This is a cross-sectional view taken along line VIII-VIII in Figure 7.This is a perspective view of the upper reinforcing member.This is a magnified perspective view showing the area around the lower reinforcing member of the seat back frame.This is a cross-sectional view taken along line XI-XI in Figure 10. Next, an embodiment of a vehicle seat will be described. In this specification, front-to-back, left-to-right, and up-and-down correspond to the front-to-back, left-to-right, and up-and-down directions as viewed from the perspective of a person sitting in the seat (seated person). As shown in Figure 1, the vehicle seat according to this embodiment is configured as a vehicle seat S installed in a vehicle, specifically an automobile, as an example of a vehicle. The vehicle seat S is a rear seat of an automobile and comprises a seat cushion S1, a seat back S2, and a headrest S3. As shown in Figures 1 and 2, the seat cushion S1 comprises a seat cushion frame F1 that forms the framework, a seat cushion pad P1 that covers the seat cushion frame F1, and a seat cushion surface C1 that covers the seat cushion frame F1 and the seat cushion pad P1. The seat cushion S1 is constructed by covering the seat cushion frame F1 with the seat cushion pad P1 and the seat cushion surface C1. The seat cushion frame F1 is made of, for example, a metal pipe. The seat cushion frame F1 has left and right seat cushion side frames 11 and 12 positioned opposite each other with a gap between them, a front frame 13 connecting the front ends of the left and right seat cushion side frames 11 and 12, and a rear frame 14 connecting the rear ends of the left and right seat cushion side frames 11 and 12. The seat cushion pad P1 is made of urethane foam or the like, and the seat cushion surface C1 is made of fabric or leather or the like. The seat back S2 comprises a seat back frame F2 that forms the frame, a seat back pad P2 that covers the seat back frame F2, and a seat back surface C2 that covers the seat back frame F2 and the seat back pad P2. The seat back S2 is constructed by covering the seat back frame F2 with the seat back pad P2 and the seat back surface C2. The seat back frame F2 comprises a main frame 20, a first cross member 31, a second cross member 32, a pan frame 40, and a reinforcing member 50. The seat back pad P2 is made of urethane foam or the like, and the seat back surface C2 is made of fabric, leather, or the like. As shown in Figure 3, the main frame 20 is formed in a roughly rectangular frame shape. The main frame 20 has an upper frame portion 21, a lower frame portion 22, a left frame portion 23, and a right frame portion 24. The upper frame portion 21 and the lower frame portion 22 extend to the left and right. The lower frame portion 22 is positioned below the upper frame portion 21, with a gap between them and the upper frame portion 21. In other words, the upper frame portion 21 is positioned above the lower frame portion 22, with a gap between them and the lower frame portion 22. The left frame section 23 extends approximately vertically, connecting the left ends of the upper frame section 21 and the lower frame section 22. The right frame section 24 also extends approximately vertically, connecting the right ends of the upper frame section 21 and the lower frame section 22. The right frame section 24 is positioned to the right of the left frame section 23, with a gap between them. In this embodiment, the left frame portion 23 corresponds to the "third frame portion connecting one end of the first frame portion and the second frame portion," and the right frame portion 24 corresponds to the "fourth frame portion connecting the other end of the first frame portion and the second frame portion." Furthermore, in this embodiment, the left-right direction corresponds to the "direction in which the third frame portion and the fourth frame portion face each other." In this embodiment, the main frame 20 consists of a first pipe member P10 and a second pipe memb