JP2022168254A5

JP2022168254A5 -

Info

Publication number: JP2022168254A5
Application number: JP2022145600A
Authority: JP
Filing date: 2022-09-13
Publication date: 2023-03-01
Anticipated expiration: 2031-11-29

Description

前記課題は、本発明の車両用シートによれば、シートバックフレームの左右側方に位置して上下方向に延びるフレーム側部と、該フレーム側部から左右方向の内側に向かって延出するフレーム延出部と、前記シートバックフレームの下方に設けられた着座フレームと、を備え、前記フレーム側部は、前記シートバックフレームと前記着座フレームとをリクライニング機構を介して連結する側方板を備え、前記側方板は、シート幅方向に断面略半円弧状に形成された脆弱部を有すること、により解決される。 According to the vehicle seat of the present invention, the frame side portions positioned on the left and right sides of the seat back frame and extending in the vertical direction, and the frame extending inward in the left and right direction from the frame side portions are provided. An extending portion and a seating frame provided below the seat back frame are provided , and the frame side portion includes a side plate connecting the seat back frame and the seating frame via a reclining mechanism. , the side plate has a weakened portion formed in a substantially semicircular cross section in the seat width direction .

上記構成において、前記脆弱部は、シート側面視において、前記リクライニング機構の回転中心をまたいで延設されるよう構成することができる。In the above configuration, the fragile portion can be configured to extend across the center of rotation of the reclining mechanism when viewed from the side of the seat.

上記構成において、前記脆弱部は、前記側方板と前記側方板の後端部から左右方向の内側に向かって延出する部分との境界部分である角部から、前記リクライニング機構の回転中心の方向に向かって延設され、前記リクライニング機構の回転中心よりも前記境界部分の反対側に延びるよう構成することができる。In the above configuration, the fragile portion extends from a corner portion, which is a boundary portion between the side plate and a portion extending inward in the left-right direction from the rear end portion of the side plate, toward the rotation center of the reclining mechanism. and extend to the opposite side of the boundary portion from the center of rotation of the reclining mechanism.

上記構成において、前記フレーム延出部は、第二脆弱部を有し、前記脆弱部及び前記第二脆弱部の少なくとも一方に接する補強部が形成されるよう構成することができる。In the above configuration, the frame extending portion may have a second weakened portion, and a reinforcing portion may be formed in contact with at least one of the weakened portion and the second weakened portion.

上記構成において、前記補強部は、前記脆弱部及び前記第二脆弱部の少なくとも一方の、上方及び下方の少なくとも一方に形成されるよう構成することができる。In the above configuration, the reinforcing portion may be formed above or below at least one of the weakened portion and the second weakened portion.

上記構成において、前記補強部は、部品取付部であるよう構成することができる。In the above configuration, the reinforcing portion can be configured to be a component mounting portion.

上記構成において、前記脆弱部は、前記リクライニング機構の回転軸方向から見たときに、前記リクライニング機構と重ならない位置に設けられるよう構成することができる。In the above configuration, the fragile portion may be provided at a position that does not overlap the reclining mechanism when viewed from the rotation axis direction of the reclining mechanism.

上記構成において、前記側方板と前記側方板の後端部から左右方向の内側に向かって延出する部分との境界部分である角部には、衝撃荷重が加わったときに変形する孔部が形成さるよう構成することができる。In the above configuration, a corner portion, which is a boundary portion between the side plate and a portion extending inward in the left-right direction from the rear end portion of the side plate, has a hole that deforms when an impact load is applied. It can be configured such that a portion is formed.

上記構成において、前記フレーム延出部は、第二脆弱部を有し、前記脆弱部及び前記第二脆弱部の少なくとも一方は、前記孔部と連結されているよう構成することができる。In the above configuration, the frame extension may have a second weakened portion, and at least one of the weakened portion and the second weakened portion may be connected to the hole.

上記構成において、前記シートバックフレームに載置されるクッションパッドと、前記クッションパッドを覆う表皮材と、前記着座フレームに載置される着座部クッションパッドと、前記着座部クッションパッドを覆う着座部表皮材と、を備え、前記着座フレームの後端部が、前記リクライニング機構を介して前記シートバックフレームと連結され、前記着座フレームは、脚部で支持されており、前記脚部にはインナレールが取り付けられ、車体フロアに設置されるアウタレールとの間で、前後に位置調整可能なスライド式に組み立てられており、前記シートバックフレームは、上部フレームを有し、前記上部フレームの上方には、ヘッドレストが設けられ、前記ヘッドレストは、芯材の外周部にパッド材を設け、前記パッド材の外周にヘッドレスト表皮材を被覆して構成されているとよい。In the above configuration, a cushion pad placed on the seat back frame, a skin material covering the cushion pad, a seat cushion pad placed on the seat frame, and a seat cover covering the seat cushion pad. a rear end portion of the seating frame is connected to the seatback frame via the reclining mechanism, the seating frame is supported by legs, and inner rails are provided on the legs. The seat back frame has an upper frame, and a headrest is mounted above the upper frame. is provided, and the headrest may be configured by providing a pad material on the outer periphery of a core material and covering the outer periphery of the pad material with a headrest skin material.

本発明によれば、衝撃荷重が加わった際、脆弱部が変形し、シートバックフレームの変形位置及び変形方向を制御することができる。したがって、衝撃エネルギーを安定して効率よく吸収可能な車両用シートとすることができる。According to the present invention, when an impact load is applied, the fragile portion is deformed, and the deformation position and deformation direction of the seatback frame can be controlled. Therefore, the vehicle seat can stably and efficiently absorb impact energy.

Claims

frame side portions positioned on left and right sides of the seat back frame and extending in the vertical direction; frame extension portions extending inward in the left and right direction from the frame side portions; a seating frame ;
The frame side portion includes a side plate that connects the seat back frame and the seating frame via a reclining mechanism,
The vehicle seat, wherein the side plate has a weakened portion formed in a substantially semicircular cross section in the width direction of the seat .

2. The vehicle seat according to claim 1, wherein the fragile portion extends across the center of rotation of the reclining mechanism in a side view of the seat.

The fragile portion extends from a corner portion, which is a boundary portion between the side plate and a portion extending inward in the left-right direction from the rear end portion of the side plate, toward the center of rotation of the reclining mechanism. 3. The vehicle seat according to claim 1, wherein the reclining mechanism extends to the opposite side of the boundary from the center of rotation of the reclining mechanism.

the frame extension has a second weakened portion,
4. The vehicle seat according to any one of claims 1 to 3, wherein a reinforcing portion is formed in contact with at least one of the weakened portion and the second weakened portion.

5. The vehicle seat according to claim 4, wherein the reinforcing portion is formed above or below at least one of the weakened portion and the second weakened portion.

The vehicle seat according to claim 4 or 5, wherein the reinforcing portion is a component mounting portion.

The vehicle according to any one of claims 1 to 6, wherein the weakened portion is provided at a position not overlapping the reclining mechanism when viewed from the rotation axis direction of the reclining mechanism. sheet.

Holes that are deformed when an impact load is applied are formed in corners that are boundary portions between the side plates and portions that extend inward in the left-right direction from the rear ends of the side plates. 3. The vehicle seat according to claim 1 or 2, wherein

the frame extension has a second weakened portion,
The vehicle seat according to claim 8, wherein at least one of the weakened portion and the second weakened portion is connected to the hole.

a cushion pad placed on the seat back frame;
a skin material covering the cushion pad;
a seat cushion pad placed on the seat frame;
a seat covering material covering the seat cushion pad,
a rear end portion of the seating frame is connected to the seat back frame via the reclining mechanism;
The seat frame is supported by legs, and inner rails are attached to the legs, and the seat frame is assembled in a sliding manner with an outer rail installed on the vehicle body floor so that the position can be adjusted forward and backward,
The seat back frame has an upper frame,
A headrest is provided above the upper frame,
10. The headrest according to any one of claims 1 to 9, wherein the headrest is configured by providing a pad material on the outer periphery of a core material and covering the outer periphery of the pad material with a headrest skin material. vehicle seat.