JP2021195052A - Vehicular seat - Google Patents

Abstract

To provide a vehicular seat including an attachment structure which can achieve rigidity and impact absorption capability.SOLUTION: A vehicular seat includes: a back frame having a body upper surface; and an attachment bracket fixed to the back frame and used to fix another member. The attachment bracket includes: a first fixed part fixed to the body upper surface of the back frame; an upper part extending upward from the first fixed part and extending to the rear side of the back frame; an attachment part which extends downward from the upper part and to which the other member is attached; a bending part which is formed below the attachment part and bends forward to the back frame; and a second fixed part extending forward from the bending part and fixed to the rear side of the back frame, where rigidities of the first fixed part and the upper part are higher than rigidity of an area around the bending part.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to vehicle seats.

A device such as a monitor may be attached to the vehicle seat. For example, Japanese Patent Application Laid-Open No. 2004-81385 (Patent Document 1) discloses a structure in which a monitoring device is attached to a headrest body of a vehicle seat.

Japanese Unexamined Patent Publication No. 2004-81385

When mounting another device on a vehicle seat, the mounting structure is required to have a predetermined rigidity (difficulty in deformation). On the other hand, considering that, for example, the occupant may collide with the monitor when the vehicle collides in front, it is desirable that the mounting structure has impact absorption (deformability).

Rigidity and shock absorption are conflicting issues, but it is required to achieve both. The structure described in Patent Document 1 cannot always sufficiently meet such a request.

Further, if an attempt is made to improve the shock absorption in a portion other than the mounting structure, individual studies are required for each device to be mounted, which may lead to complication of the structure and an increase in cost.

An object of the present disclosure is to provide a vehicle seat including a mounting structure that has both rigidity and shock absorption.

The vehicle seat according to the present disclosure includes a back frame having an upper surface of the main body and a mounting bracket fixed to the back frame for fixing other members, and the mounting bracket is fixed to the upper surface of the main body of the back frame. A first fixed portion, an upper portion extending upward from the first fixed portion and extending to the rear side of the back frame, a mounting portion extending downward from the upper portion, and a mounting portion to which other members are mounted, and a lower portion of the mounting portion. Includes a bent portion that is formed in the frame and bends forward toward the back frame, and a second fixed portion that extends forward from the bent portion and is fixed to the rear side of the back frame, and the rigidity of the first fixed portion and the upper portion is increased. Higher than the rigidity around the bend.

In one embodiment, in the vehicle seat, the back frame includes an upper frame that projects upward from the top surface of the body, and the upper portion of the mounting bracket straddles the upper frame and reaches the rear side of the back frame.

In one embodiment, in the vehicle seat, a gap is formed between the upper frame of the back frame and the upper portion of the mounting bracket.

In one embodiment, in the vehicle seat, the mounting bracket includes a first member constituting a first fixing portion and an upper portion, and a second member constituting a bent portion, and the first member and the second member. Is composed of the same material as, and the thickness of the first member is larger than the thickness of the second member.

In one embodiment, in the vehicle seat, the mounting bracket includes a first member constituting a first fixing portion and an upper portion, and a second member constituting a bent portion, and the first member is a second member. It is composed of a material that is stronger than the members.

In one embodiment, in the vehicle seat, the mounting bracket has a curved portion between the upper portion and the mounting portion, and the outer surface of the curved portion is composed of a curved surface.

According to the vehicle seat according to the present disclosure, it is possible to achieve both rigidity and shock absorption in the mounting structure of other devices.

It is a figure which shows the state which attached the seat monitor for a vehicle which concerns on one Embodiment of this disclosure. It is a figure (the 1) which shows the back frame and the monitor mounting bracket in the vehicle seat of FIG. FIG. 2 is a diagram (No. 2) showing a back frame and a monitor mounting bracket in the vehicle seat of FIG. 1. Of the structures shown in FIGS. 2 and 3, only the upper part of the back frame is enlarged. 2 is a schematic diagram showing a state in which a monitor is attached to the structure shown in FIGS. 2 to 4.

Hereinafter, embodiments of the present disclosure will be described. In some cases, the same or corresponding parts are designated by the same reference numeral and the description thereof may not be repeated.

In the embodiments described below, when the number, quantity, etc. are referred to, the scope of the present disclosure is not necessarily limited to the number, quantity, etc., unless otherwise specified. Further, in the following embodiments, each component is not necessarily essential for the present disclosure unless otherwise specified.

In the present embodiment, an automobile seat, particularly a vehicle seat in which a monitor is attached behind a front seat, is exemplified, but the scope of the present disclosure is not limited thereto.

In the present embodiment, "front" and "rear" mean the front side and the rear side when viewed from the occupant seated on the vehicle seat, and "front-rear direction" means the direction connecting the front side and the rear side. .. In addition, "left" and "right" mean the left side and the right side when viewed from the occupant seated on the vehicle seat, and "width direction" means the direction connecting the left side and the right side. Means. Further, "upper" and "lower" mean the upper side and the lower side when viewed from the occupant seated on the vehicle seat, and "vertical direction" means the direction connecting the upper side and the lower side.

FIG. 1 is a diagram showing a state in which the monitor 200 is attached to the seat 100. As shown in FIG. 1, by attaching the monitor 200 to the rear of the seat 100, which is the front seat, the occupant seated on the rear seat can see the contents displayed on the monitor 200.

2 and 3 are views showing the back frame 10 in the seat 100 and the mounting bracket 20 for the monitor 200.

As shown in FIGS. 2 and 3, the back frame 10 is formed by combining metal frame members in a frame shape. The back frame 10 forms a skeleton of a seat back on which an occupant can back up.

The mounting bracket 20 is mounted on the upper part of the back frame 10. One mounting bracket 20 is provided on each side (left and right sides) of the back frame 10 in the width direction. The mounting bracket 20 includes a first member 20A on the upper side and a second member 20B on the lower side.

A mounting bolt 30 is inserted through the mounting bracket 20. The monitor 200 is fixed to the back frame 10 of the seat 100 via the mounting bracket 20 and the mounting bolt 30. The mounting bolts 30 are provided separately at two upper and lower positions. The mounting bolt 30 provided on the upper side is inserted into the portion where the first member 20A and the second member 20B are overlapped, whereby the first member 20A and the second member 20B are integrated. The lower mounting bolt 30 is inserted through the second member 20B.

As an example, the mounting bracket 20 is divided into two members (first member 20A and second member 20B). The mounting bracket 20 may be composed of a single member, or may be divided into two or more arbitrary number (for example, three or more) members.

An upper frame 10A is provided on the upper part of the back frame 10 so as to extend in the width direction of the seat 100. The first member 20A of the mounting bracket 20 is provided so as to straddle the upper frame 10A.

In the present embodiment, as will be described later, the rigidity of the first member 20A is relatively increased to secure the rigidity required for the mounting bracket 20, while the rigidity of the second member 20B is decreased to reduce the rigidity of the mounting bracket. The shock absorption of 20 is improved.

Therefore, in one example, the thickness of the first member 20A is made larger than the thickness of the second member 20B while the first member 20A and the second member 20B are made of the same material. Further, the first member 20A may be made of a material having higher strength than the second member 20B.

The first member 20A and the second member 20B are formed by, for example, pressing an iron plate-shaped member.

FIG. 4 is an enlarged view of only the upper part of the back frame 10 among the structures shown in FIGS. 2 and 3.

As shown in FIG. 4, the back frame 10 has a main body upper surface 11. The upper surface 11 of the main body is a surface located on the upper part of the main body of the back frame 10 and facing upward or diagonally upward.

The mounting bracket 20 includes an upper fixing portion 21, an upper portion 22, a bending portion 23, mounting portions 24 and 25, a bending portion 26, and a lower fixing portion 27.

The upper fixing portion 21 (first fixing portion) is fixed to the upper surface 11 of the main body of the back frame 10 by, for example, welding. The tip of the upper fixing portion 21 is processed into a substantially L shape so that it can be firmly fixed to the upper surface 11 of the main body of the back frame 10.

The upper portion 22 extends upward from the upper fixing portion 21 and then extends rearward to reach the rear side of the back frame 10. The curved portion 23 is located at the rear end of the upper portion 22. The first member 20A is formed so as to be curved downward at the curved portion 23. The outer surface of the curved portion 23 is composed of a curved surface. As a result, even when the occupant seated on the rear seat comes into contact with or collides with the curved portion 23, the impact on the occupant can be reduced.

The mounting portion 24 is formed so as to extend downward from the curved portion 23. The mounting portion 25 is provided below the mounting portion 24. The mounting portion 24 is formed by the first member 20A, and the mounting portion 25 is formed by the second member 20B. A mounting bolt 30 for mounting a monitor is inserted through the mounting portions 24 and 25.

The bent portion 26 is formed below the mounting portion 25. The second member 20B bends forward toward the back frame 10 at the bent portion 26. The second member 20B extends forward from the bent portion 26 and reaches the rear side of the back frame 10.

The second member 20B is fixed to the back frame 10 at the lower fixing portion 27 (second fixing portion), for example, by welding or the like. The tip of the lower fixing portion 27 is processed into a substantially L shape along the rear surface of the back frame 10.

FIG. 5 is a schematic view showing a state in which the monitor 200 is attached to the structure shown in FIGS. 2 to 4.

As shown in FIG. 5, the monitor mounting member 200A is mounted on the mounting bracket 20 by the mounting bolts 30 provided at the upper and lower positions. The monitor mounting member 200A rotatably holds the monitor 200 in the direction of arrow DR1.

An occupant seated on the rear seat may rotate the monitor 200 in the direction of arrow DR1 to adjust the display contents so that they are easy to see. The mounting bracket 20 is required to have rigidity and strength to withstand a push-pull load in the direction of arrow DR1. In the present embodiment, the rigidity or strength of the first member 20A is relatively high, and the rigidity or strength required for the mounting bracket 20 is secured mainly by the upper fixing portion 21 and the upper portion 22.

On the other hand, when a occupant seated on the rear seat collides with the monitor 200 from the direction of arrow DR2, for example, when a vehicle collides in front, it is required to reduce the impact on the occupant. In the present embodiment, the rigidity of the second member 20B is relatively low so that the bent portion 26 is further folded (as shown by the broken line A in FIG. 5) when an impact is received from the rear. By deforming the two members 20B, the mounting bracket 20 is provided with shock absorption. That is, the bent portion 26 functions as a deformation promoting portion for inducing deformation for absorbing an impact from the rear.

As shown in FIG. 5, a gap is formed between the upper portion 22 straddling the upper frame 10A and reaching the rear side of the back frame 10 and the upper frame 10A. As a result, it is possible to allow displacement due to deformation around the bent portion 26.

As described above, the vehicle seat 100 according to the present embodiment is fixed to the back frame 10 having the upper surface 11 of the main body and the back frame 10, and is a mounting bracket for fixing the monitor mounting member 200A (other member). 20 and. The mounting bracket 20 has an upper fixing portion 21 (first fixing portion) fixed to the upper surface 11 of the main body of the back frame 10, and an upper portion extending upward from the upper fixing portion 21 and extending to the rear side of the back frame 10. 22 and the curved portion 23 provided at the rear end of the upper portion 22 and bending downward, the mounting portions 24 and 25 extending downward from the curved portion 23 and to which the monitor mounting member 200A is mounted, and the mounting portions 24 and 25. A bent portion 26 that is formed below the back frame 10 and bends forward toward the back frame 10, and a lower fixed portion 27 (second fixed portion) that extends forward from the bent portion 26 and is fixed to the rear side of the back frame 10. include. The rigidity of the upper fixing portion 21 and the upper portion 22 is higher than the rigidity around the bent portion 26.

According to the above configuration, when the upper fixing portion 21 and the upper portion 22, which have relatively high rigidity, receive an impact from the rear while ensuring the rigidity required for the mounting bracket 20 for holding the monitor 200. The periphery of the bent portion 26 having a relatively low rigidity can be deformed forward to absorb the impact. As a result, it is possible to provide a vehicle seat including a mounting structure having both rigidity and shock absorption.

Further, the first member 20A constituting the upper fixing portion 21 and the upper portion 22 and the second member 20B constituting the bent portion 26 are made of the same material, and the thickness of the first member 20A is the thickness of the second member 20B. By making it larger than the thickness, the rigidity of the upper fixing portion 21 and the upper portion 22 can be relatively increased.

In the present embodiment, the structure in which the monitor 200 is attached to the rear of the seat 100 is illustrated, but the “other member” in the present disclosure is not limited to the monitor attachment member 200A. For example, the contents of the present disclosure may be applied to a structure in which a table, a lever, a grip, or the like is attached to the seat 100.

Although the embodiments of the present disclosure have been described above, it should be considered that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present disclosure is indicated by the scope of claims and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

10 back frame, 10A upper frame, 20 mounting bracket, 20A first member, 20B second member, 21 upper fixing part, 22 upper part, 23 bending part, 24, 25 mounting part, 26 bending part, 27 lower fixing part, 30 mounting bolts, 100 sheets, 200 monitors, 200A monitor mounting members.

Claims (6)

A back frame with the upper surface of the main body and
It is fixed to the back frame and is provided with a mounting bracket for fixing other members.
The mounting bracket is
A first fixing portion fixed to the upper surface of the main body of the back frame,
An upper portion extending upward from the first fixing portion and extending to the rear side of the back frame, and an upper portion extending upward.
A mounting portion extending downward from the upper portion and to which the other member is mounted, and a mounting portion.
A bent portion formed below the mounting portion and bent forward toward the back frame, and a bent portion.
Includes a second fixing portion that extends forward from the bent portion and is fixed to the rear side of the back frame.
A vehicle seat in which the rigidity of the first fixing portion and the upper portion is higher than the rigidity around the bending portion. The back frame includes an upper frame projecting upward from the upper surface of the main body.
The vehicle seat according to claim 1, wherein the upper portion of the mounting bracket straddles the upper frame and reaches the rear side of the back frame. The vehicle seat according to claim 2, wherein a gap is formed between the upper frame of the back frame and the upper portion of the mounting bracket. The mounting bracket includes a first member constituting the first fixing portion and the upper portion, and a second member constituting the bent portion.
The vehicle according to any one of claims 1 to 3, wherein the first member and the second member are made of the same material, and the thickness of the first member is larger than the thickness of the second member. Sheet. The mounting bracket includes a first member constituting the first fixing portion and the upper portion, and a second member constituting the bent portion.
The vehicle seat according to any one of claims 1 to 3, wherein the first member is made of a material having a higher strength than the second member. The vehicle seat according to any one of claims 1 to 5, wherein the mounting bracket has a curved portion between the upper portion and the mounting portion, and the outer surface of the curved portion is composed of a curved surface. ..

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