JP3745098B2 - Seat shock absorption structure - Google Patents

Seat shock absorption structure Download PDF

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Publication number
JP3745098B2
JP3745098B2 JP28117897A JP28117897A JP3745098B2 JP 3745098 B2 JP3745098 B2 JP 3745098B2 JP 28117897 A JP28117897 A JP 28117897A JP 28117897 A JP28117897 A JP 28117897A JP 3745098 B2 JP3745098 B2 JP 3745098B2
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JP
Japan
Prior art keywords
bracket
back frame
wire
seat
shape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP28117897A
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Japanese (ja)
Other versions
JPH11105603A (en
Inventor
勝正 清水
秀雄 新堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tachi S Co Ltd
Original Assignee
Tachi S Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tachi S Co Ltd filed Critical Tachi S Co Ltd
Priority to JP28117897A priority Critical patent/JP3745098B2/en
Publication of JPH11105603A publication Critical patent/JPH11105603A/en
Application granted granted Critical
Publication of JP3745098B2 publication Critical patent/JP3745098B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、自動車用シート(座席)の衝撃吸収構造、詳しくは、中折れ用或いはリクライニング用などの操作ノブを頂部に有するリャシートバック(後席背凭部)の衝撃吸収構造に関する。
【0002】
【従来の技術】
従来、自動車の衝突時などシートに大負荷が加わった際に乗員を保護するために、シートに種々の衝撃吸収構造を備えている。
一方、シートは所定の負荷に対応できるように、種々の補強部材で補強している。
【0003】
【発明が解決しようとする課題】
以上の衝撃吸収構造は、従来のフレーム等に専用の衝撃吸収部材を設けるか、或いはフレーム等を衝撃吸収構造にしている。
そのため、シートの構造が複雑化し、製造に工数を要する不具合があった。
【0004】
そこで、本発明は従来のシートの構成部品をそのまま使用して、シートに加わる衝撃を吸収できるようにすることを目的とする。
【0005】
【課題を解決するための手段】
以上の目的を達成するための本発明は、バックフレームの頂部に有する操作ノブ取付用ブラケットを利用して、前記衝撃を吸収する構造であって、ブラケットの下部に、前後方向に貫通する吸収孔を開孔し、該吸収孔の下方に位置する縁部を前記バックフレームに溶接し、ブラケットの上部をワイヤを介してバックフレームに固定してなるものである。
【0006】
また、前記ブラケットは逆U字状に折曲したパイプ製のバックフレームの頂部の一方側に設け、頂部の他方側には、ワイヤを略L字状に折曲した衝撃吸収部を設けてなることにより、衝撃吸収性のバランスが良好となる。
【0007】
更に、前記ワイヤは、逆U字状に折曲してなるバックフレームの水平部に、ブラケットの縁部はバックフレームの垂直部に各々溶接してなることにより、衝撃吸収性が向上する。
【0008】
【発明の実施の形態】
以下、本発明の実施の一形態を、図面に基づいて説明する。
図1は、中折れシートバックのバックフレームに採用した衝撃吸収構造を示し、バックフレーム(1)は中折れ機構(不図示)を介して下部フレームに連結され、下部フレームはリクライニング機構を介してシートクッションのクッションフレームに連結される。
【0009】
バックフレーム(1)は垂直部(10)(10A)、折曲部(12)(12A)、水平部(11)とからなる逆U字状に折曲してなるパイプで、左右の垂直部(10)(10A)間には支持ワイヤ(13)(13)…と、連結パイプ(14)が架設されている。
【0010】
以上のバックフレーム(1)の頂部における一側にはブラケット(2)が、また、他側にはワイヤを略L字状に折曲してなる衝撃吸収部(4)が各々設けてあり、この衝撃吸収部(4)とブラケット(2)とによって、シートバックに加わる衝撃をバランス良く吸収てしいる。
【0011】
図示するブラケット(2)は、中折れ機構のロック解除用操作ノブ(5)を取付けるものであり、操作ノブ(5)を前後方向に回動させるとこにより、図2に示すレバー(50)が、ばね(51)の弾力に抗して枢支ピン(50A)を回転中心に回動して、ケーブル(52)が引かれて中折れ機構のロックが解除させるように構成されている。
【0012】
ブラケット(2)は上部に当片(21)をシートバックのバックフレーム(1)の前面側に対して平行で、バックフレーム(1)の前面側よりやや前方に突出するように一体成形されている。
【0013】
この当片(21)の前面とバックフレーム(1)の水平部(11)の前面とにワイヤ(3)の両端(30)(31)が溶接されている。
【0014】
ブラケット(2)の下部には、前後方向に貫通する吸収孔(20)を開孔して、変形し易いように構成され、その吸収孔(20)の下方に位置する縁部(22)をバックフレーム(1)の垂直部(10)の一部である折曲部(12)の後面側に溶接している。
【0015】
斯してブラケット(2)は、ワイヤ(3)と縁部(22)とによってバックフレーム(1)に固定されている。従って、シートバックに大負荷が加わると、ワイヤ(3)自体が変形し易く、また、縁部(22)近傍のブラケット(2)下部は、吸収孔(20)によって変形し易い構造であるため、ワイヤ(3)とブラケット(2)の縁部(22)近傍部分で、前記大負荷の一部を負担して衝撃を吸収する。
【0016】
【発明の効果】
本発明によれば、従来のブラケットの下部に吸収孔を開孔してその下方に位置する縁部と、ブラケットの上部をワイヤを介してバックフレームに溶接することにより、衝撃の一部を吸収できる。
【0017】
従って、衝撃吸収のために特別な構造、装置を設けることなく、従来品のブラケットを使用して衝撃を吸収できるので、構造簡単にして低原価で提供できる。
【図面の簡単な説明】
【図1】本発明の正面図である。
【図2】図1のA部の拡大図である。
【符号の説明】
1 バックフレーム
2 ブラケット
3 ワイヤ
4 衝撃吸収部
20 吸収孔
22 縁部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an impact absorbing structure for an automobile seat (seat), and more particularly to an impact absorbing structure for a rear seat back (back seat back portion) having an operation knob for folding or reclining at the top.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a seat is provided with various shock absorbing structures in order to protect an occupant when a heavy load is applied to the seat, such as in a car collision.
On the other hand, the sheet is reinforced with various reinforcing members so as to cope with a predetermined load.
[0003]
[Problems to be solved by the invention]
In the above shock absorbing structure, a dedicated shock absorbing member is provided in a conventional frame or the like, or the frame or the like is made into a shock absorbing structure.
For this reason, the structure of the sheet is complicated, and there is a problem that man-hours are required for manufacturing.
[0004]
In view of the above, an object of the present invention is to make it possible to absorb the impact applied to the sheet by using the conventional components of the sheet as they are.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a structure for absorbing the impact by using an operation knob mounting bracket at the top of the back frame, and has an absorption hole penetrating in the front-rear direction at the lower part of the bracket. , The edge located below the absorption hole is welded to the back frame, and the upper part of the bracket is fixed to the back frame via a wire.
[0006]
The bracket is provided on one side of the top part of a pipe back frame bent in an inverted U shape, and an impact absorbing part obtained by bending the wire in a substantially L shape is provided on the other side of the top part. Thereby, the balance of shock absorption becomes good.
[0007]
Further, the shock absorption is improved by welding the wire to the horizontal portion of the back frame bent in an inverted U shape and the edge of the bracket to the vertical portion of the back frame.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows an impact absorbing structure adopted for a back frame of a folded seat back, where the back frame (1) is connected to a lower frame via a folded mechanism (not shown), and the lower frame is connected to a reclining mechanism. Connected to the cushion frame of the seat cushion.
[0009]
The back frame (1) is a pipe that is bent into an inverted U-shape comprising a vertical portion (10) (10A), a bent portion (12) (12A), and a horizontal portion (11). (10) (10A), support wires (13), (13), and a connecting pipe (14) are installed.
[0010]
A bracket (2) is provided on one side of the top of the back frame (1), and an impact absorbing part (4) formed by bending the wire in a substantially L shape is provided on the other side. The shock absorbing part (4) and the bracket (2) absorb the shock applied to the seat back in a well-balanced manner.
[0011]
The bracket (2) shown in the figure is for attaching an operation knob (5) for unlocking the folding mechanism. When the operation knob (5) is rotated in the front-rear direction, the lever (50) shown in FIG. The pivot pin (50A) is rotated around the center of rotation against the elasticity of the spring (51), and the cable (52) is pulled to release the lock of the folding mechanism.
[0012]
The bracket (2) is integrally formed so that the top piece (21) is parallel to the front side of the back frame (1) of the seat back and protrudes slightly forward from the front side of the back frame (1). Yes.
[0013]
Both ends (30) and (31) of the wire (3) are welded to the front surface of the contact piece (21) and the front surface of the horizontal portion (11) of the back frame (1).
[0014]
An absorption hole (20) penetrating in the front-rear direction is opened at the lower part of the bracket (2) so as to be easily deformed, and an edge portion (22) positioned below the absorption hole (20) is provided. The back frame (1) is welded to the rear surface side of the bent portion (12) which is a part of the vertical portion (10).
[0015]
Thus, the bracket (2) is fixed to the back frame (1) by the wire (3) and the edge (22). Therefore, when a heavy load is applied to the seat back, the wire (3) itself is easily deformed, and the lower part of the bracket (2) near the edge (22) is easily deformed by the absorption hole (20). In the vicinity of the edge (22) of the wire (3) and the bracket (2), a part of the large load is applied to absorb the impact.
[0016]
【The invention's effect】
According to the present invention, a part of the impact is absorbed by opening an absorption hole in the lower part of the conventional bracket and welding the edge part located below and the upper part of the bracket to the back frame via the wire. it can.
[0017]
Therefore, since a shock can be absorbed using a conventional bracket without providing a special structure or device for absorbing the shock, the structure can be simplified and provided at low cost.
[Brief description of the drawings]
FIG. 1 is a front view of the present invention.
FIG. 2 is an enlarged view of part A in FIG.
[Explanation of symbols]
1 Back frame 2 Bracket 3 Wire 4 Shock absorber 20 Absorber hole 22 Edge

Claims (3)

バックフレームの頂部に操作ノブ取付用のブラケットを固定してなるシートバックにおいて、
前記ブラケットの下部に、前後方向に貫通する吸収孔を開孔し、該吸収孔の下方に位置する縁部を前記バックフレームに溶接し、ブラケットの上部をワイヤを介してバックフレームに固定してなるシートの衝撃吸収構造。
In the seat back formed by fixing the operation knob mounting bracket to the top of the back frame,
An absorption hole penetrating in the front-rear direction is opened in the lower part of the bracket, the edge located below the absorption hole is welded to the back frame, and the upper part of the bracket is fixed to the back frame through a wire. The shock absorbing structure of the sheet.
前記ブラケットは逆U字状に折曲したパイプ製のバックフレームの頂部の一方側に設け、頂部の他方側には、ワイヤを略L字状に折曲した衝撃吸収部を設けてなる請求項1記載のシートの衝撃吸収構造。The bracket is provided on one side of a top portion of a pipe back frame bent in an inverted U shape, and an impact absorbing portion in which a wire is bent in a substantially L shape is provided on the other side of the top portion. The impact absorbing structure for a sheet according to 1. 前記ワイヤは、逆U字状に折曲してなるバックフレームの水平部に、ブラケットの縁部はバックフレームの垂直部に各々溶接してなる請求項1記載のシートの衝撃吸収構造。2. The shock absorbing structure for a seat according to claim 1, wherein the wire is welded to a horizontal portion of a back frame bent in an inverted U shape, and an edge portion of the bracket is welded to a vertical portion of the back frame.
JP28117897A 1997-09-30 1997-09-30 Seat shock absorption structure Expired - Fee Related JP3745098B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28117897A JP3745098B2 (en) 1997-09-30 1997-09-30 Seat shock absorption structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28117897A JP3745098B2 (en) 1997-09-30 1997-09-30 Seat shock absorption structure

Publications (2)

Publication Number Publication Date
JPH11105603A JPH11105603A (en) 1999-04-20
JP3745098B2 true JP3745098B2 (en) 2006-02-15

Family

ID=17635442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28117897A Expired - Fee Related JP3745098B2 (en) 1997-09-30 1997-09-30 Seat shock absorption structure

Country Status (1)

Country Link
JP (1) JP3745098B2 (en)

Also Published As

Publication number Publication date
JPH11105603A (en) 1999-04-20

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