JPH0729898Y2 - Seat back - Google Patents
Seat backInfo
- Publication number
- JPH0729898Y2 JPH0729898Y2 JP4982290U JP4982290U JPH0729898Y2 JP H0729898 Y2 JPH0729898 Y2 JP H0729898Y2 JP 4982290 U JP4982290 U JP 4982290U JP 4982290 U JP4982290 U JP 4982290U JP H0729898 Y2 JPH0729898 Y2 JP H0729898Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- seat
- receiving member
- seat back
- receiving
- 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 - Lifetime
Links
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は車両用シート等のシートクッションの後部に配
設されるシートバックに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a seat back arranged at a rear portion of a seat cushion such as a vehicle seat.
（従来技術） シートバックの一形式として刊行物「自動車工学便覧第
６編第23頁（自動車技術会発行）」に示されているよう
に、枠状フレームにバネ部材を介して張設されて同枠状
フレーム内にて略全面に位置する受承部材を有するバッ
クフレームと、同バックフレームの少くとも前面に位置
して前記受承部材に受承されシートカバーにて前記バッ
クフレームと一体的に被覆されたバックパッドを備えた
形式のものがある。かかるシートバックはシートクッシ
ョンの後部に配設され、シートクッションの着座者の背
部を受承する。(Prior Art) As a form of a seat back, as shown in the publication "Automotive Engineering Handbook, Vol. 6, page 23 (published by the Society of Automotive Engineers of Japan)", it is stretched over a frame-like frame through a spring member. A back frame having a receiving member positioned on substantially the entire surface of the frame-like frame, and a seat cover that is positioned at least in front of the back frame and is received by the receiving member, and is integrated with the back frame by a seat cover. There is a type with a back pad covered with. Such a seat back is disposed at the rear of the seat cushion and receives the back of the seat occupant of the seat cushion.
（考案が解決しようとする課題） ところで、この種のシートバックにおいては受承部材が
全面一様の特性のため、同受承部材は着座者の背部を略
一様に受承することになり、着座者の胸部、腰部、臀部
等互いに形状が異なり、かつ姿勢、運動等も異なる部位
に対してはバックパッドの撓みにより対処しているにす
ぎない。従って、かかるシートバックは着座者の背部の
各部位を適性に受承しているとはいえない。従って、本
考案の目的はかかる問題に対処することにある。(Problems to be solved by the invention) By the way, in this type of seat back, since the receiving member has a uniform property over the entire surface, the receiving member receives the back of the seated person substantially uniformly. However, the back pad flexes only to cope with the parts such as the chest, waist, and buttocks of the seated person, which have different shapes and different postures and movements. Therefore, it cannot be said that such a seat back properly receives each part of the back of the seated person. Therefore, an object of the present invention is to address such a problem.
（課題を解決するための手段） 本考案は上記した形式のシートバックにおいて、前記受
承部材を上下方向に少くとも２つに分割して配置して、
これら各受承部材をその両側の上下方向の中間部にて前
記枠状フレームの両側部に前後方向へ揺動可能に組付け
るとともに、これら各受承部材の揺動端部を前記フレー
ムの側部にバネ部材を介して組付けたことを特徴とする
ものである。(Means for Solving the Problem) In the seat back of the above-mentioned type, the present invention is arranged such that the receiving member is divided into at least two parts in the vertical direction,
Each of these receiving members is attached to both side portions of the frame-shaped frame so as to be swingable in the front-rear direction at the intermediate portions in the vertical direction on both sides thereof, and the swinging end portions of these receiving members are attached to the side of the frame. It is characterized in that it is assembled to the portion via a spring member.
（考案の作用・効果） かかる構成のシートバックにおいては、前方から作用す
る荷重の大小および方向により各受承部材が互いに独立
して揺動しかつ揺動量を異にするため、少くとも上下方
向の２箇所においては着座者の背部の形状、姿勢、動き
の変化に応じた受承機能を発揮する。このため、本考案
に係るシートバックは従来のこの種のシートバックに比
較して着座者の背部の各部位をより適確に受承する。(Operation and effect of the invention) In the seat back having such a configuration, the receiving members swing independently of each other and have different swing amounts depending on the magnitude and direction of the load acting from the front, and therefore, at least in the vertical direction. In the two places, the seating occupant has a receiving function according to changes in the back shape, posture and movement of the seated person. Therefore, the seat back according to the present invention receives each part of the back of the seated person more accurately than the conventional seat back of this type.
（実施例） 以下本考案の実施例を図面に基づいて説明するに、第１
図には本考案の一実施例に係るシートバックSbが示され
ている。当該シートバックSbは第３図に示すように車両
用シートのシートバックを構成するもので、シートクッ
ションScの後部に配設されてシートクッションScの着座
者の背部を受承する。(Embodiment) The first embodiment of the present invention will be described below with reference to the drawings.
A seat back Sb according to an embodiment of the present invention is shown in the drawing. As shown in FIG. 3, the seat back Sb constitutes a seat back of a vehicle seat, and is arranged at the rear part of the seat cushion Sc to receive the back part of the seated person of the seat cushion Sc.
シートバックSbは第１図および第２図に示すように、パ
イプを屈曲形成してなる枠状フレーム11と上下一対の受
承部材12、13とからなるバックフレームと、ウレタンホ
ームからなるバックパッド14と、これらの各部材11〜14
を一体的に被覆するシートカバー15を主要構成部材とす
るもので、両受承部材12、13を除き公知の構成部材であ
る。As shown in FIG. 1 and FIG. 2, the seat back Sb is a back frame composed of a frame-shaped frame 11 formed by bending a pipe, a pair of upper and lower receiving members 12, 13, and a back pad composed of a urethane home. 14 and each of these members 11 to 14
The seat cover 15 for integrally covering the above is a main constituent member, and is a publicly known constituent member except both the receiving members 12 and 13.
しかして、上方の第１受承部材12は断面コ字状の左右一
対の枠体12aと、両枠体12aの上端または下端に固着され
てこれら両枠体12aを連結する上下一対の棒状スプリン
グ12bと、両枠体12aの内側に両端を固着されて両スプリ
ング12b間にて並列する多数のワイヤ12cからなる。かか
る第１受承部材12は各枠体12aの上下方向の略中央部に
てフレーム11の各側部に前方へ突設したブラケット11a
に前後に揺動可能に組付けられている。また、枠体12a
の上下各揺動端部はコイル状のトーションスプリング16
を介してフレーム11の各側部に弾撥的に連結されてい
る。また、下方の第２受承部材13は各枠体13aの長さが
相違する点を除き第１受承部材12と同じ構成のもので、
上下一対の棒状スプリング13bを備え、フレーム11の各
側部に前方へ突設したブラケット11bに前後に揺動可能
に組付けられ、かつ枠体13aの上下各揺動端部がトーシ
ョンスプリング17を介してフレーム11の各側部に弾撥的
に連結されている。従って、各受承部材12、13は前方か
ら荷重が作用した場合、荷重の大きさおよび方向に応じ
て各トーションスプリング16、17を正逆方向に捩って前
後方向へ互に独立的に揺動する。バックパッド14はこれ
ら両受承部材12、13に前面にて受承された状態でフレー
ム11まで延びていて、シートカバー15にてこれらの部材
11〜14が一体的に被覆されてシートバックSbが構成され
ている。The upper first receiving member 12 has a pair of left and right frame bodies 12a having a U-shaped cross section, and a pair of upper and lower bar-shaped springs fixed to the upper ends or the lower ends of the frame bodies 12a to connect the frame bodies 12a. 12b and a large number of wires 12c that are fixed at both ends inside both frame bodies 12a and are arranged in parallel between both springs 12b. The first receiving member 12 is provided with brackets 11a projecting forward on each side of the frame 11 at substantially the center of each frame 12a in the vertical direction.
It is assembled so that it can swing back and forth. Also, the frame body 12a
The upper and lower swing ends of the coil are torsion springs 16
It is elastically connected to each side of the frame 11 via. The lower second receiving member 13 has the same structure as the first receiving member 12 except that the length of each frame 13a is different.
A pair of upper and lower bar-shaped springs 13b are provided, which are attached to brackets 11b projecting forward on each side of the frame 11 so as to be swingable back and forth, and the upper and lower swinging ends of the frame 13a form a torsion spring 17. It is elastically coupled to each side of the frame 11 via. Therefore, when a load is applied from the front, each of the receiving members 12 and 13 independently swings forward and backward by twisting the torsion springs 16 and 17 in the forward and reverse directions according to the magnitude and direction of the load. Move. The back pad 14 extends to the frame 11 while being received by these receiving members 12 and 13 on the front surface thereof, and the seat cover 15 extends these members.
The seat back Sb is formed by integrally covering 11 to 14.
かかる構成のシートバックSbを備えた車両用シートに乗
員が着座すると、着座者の背部がシートバックSbによっ
て受承される。この場合、バックフレームの各受承部材
12、13には着座者から大きな荷重を受けるが、かかる荷
重は着座者の背部における胸部、腰部、臀部の形状、姿
勢、動きによってその大きさ、方向が局部的に異なる。
このため、各受承部材12、13が着座者から受ける荷重の
大きさおよび方向が異なり、これに応じて互に独立的に
揺動して第３図に示す状態となる。従って、シートバッ
クSbは着座者の背部をその各部位の形状、姿勢に応じて
適確に受承し、かつ同着座者が姿勢を変化させても各受
承部材12、13がこれに追従して揺動して適確に受承す
る。また、異なる乗員が着座した場合も当該シートバッ
クSbはこれと同様に機能する。なお、各受承部材12、13
の上下方向の大きさ、配設位置を適宜設定することによ
り、着座者の腰部等を特別に受承する補助機能であるラ
ンバサポート等が不要となる。When an occupant sits on the vehicle seat including the seat back Sb having such a configuration, the back of the seated person is received by the seat back Sb. In this case, each receiving member of the back frame
12 and 13 receive a large load from the seated person, and the size and direction of the load locally vary depending on the shape, posture, and movement of the chest, waist, and buttocks of the back of the seated person.
Therefore, the magnitudes and directions of the loads received by the seated persons on the receiving members 12 and 13 are different, and accordingly, the receiving members 12 and 13 swing independently of each other to the state shown in FIG. Therefore, the seat back Sb properly receives the back of the seated person according to the shape and posture of each part, and even if the seated person changes his / her posture, the receiving members 12, 13 follow this. And swing it to receive it properly. Also, when a different occupant is seated, the seat back Sb functions similarly to this. In addition, each receiving member 12, 13
By appropriately setting the size in the vertical direction and the disposition position of the seat, it is not necessary to provide a lumbar support or the like, which is an auxiliary function for specially receiving the waist of the seated person.
第１図は本考案の一実施例に係るシートバックの一部切
欠き斜視図、第２図は同シートバックを構成するバック
フレームの部分拡大斜視図、第３図は同シートバックを
備えた車両用シートの側面図である。 符号の説明 11……枠状フレーム、11a、11b……ブラケット、12、13
……受承部材、14……バックパッド、15……シートカバ
ー、16、17……トーションスプリング、Sb……シートバ
ック、Sc……シートクッション。FIG. 1 is a partially cutaway perspective view of a seat back according to an embodiment of the present invention, FIG. 2 is a partially enlarged perspective view of a back frame constituting the seat back, and FIG. 3 is provided with the seat back. It is a side view of a vehicle seat. Explanation of symbols 11 …… Frame-shaped frame, 11a, 11b …… Bracket, 12, 13
…… Receiving member, 14 …… Back pad, 15 …… Seat cover, 16,17 …… Torsion spring, Sb …… Seat back, Sc …… Seat cushion.
Claims (1)
て同枠状フレーム内にて略全面に位置する受承部材を有
するバックフレームと、同バックフレームの少なくとも
全面に位置して前記受承部材に受承されシートカバーに
て前記バックフレームと一体的に被覆されたバックパッ
ドを備え、シートクッションの後端部に配設されて起立
するシートバックにおいて、前記受承部材を上下方向に
少なくともに２つに分割して配置して、これら各受承部
材をその両側の上下方向の中間部にて前記枠状フレーム
の両側部に前後方向へ揺動可能に組付けるとともに、こ
れら各受承部材の揺動端部を前記枠状フレームの側部に
バネ部材を介して組付けたことを特徴とするシートバッ
ク。1. A back frame having a receiving member which is stretched on a frame-shaped frame via a spring member and which is positioned on substantially the entire surface of the frame-shaped frame; and a back frame which is positioned on at least the entire surface of the back frame. In a seat back which is received by a receiving member and is covered integrally with the back frame by a seat cover, and which is arranged at the rear end portion of the seat cushion and stands upright, the receiving member is vertically moved. And each of these receiving members are assembled to both side portions of the frame-like frame so as to be swingable in the front-rear direction at an intermediate portion in the vertical direction on both sides thereof. A seat back in which a swinging end portion of a receiving member is assembled to a side portion of the frame-like frame via a spring member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4982290U JPH0729898Y2 (en) | 1990-05-11 | 1990-05-11 | Seat back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4982290U JPH0729898Y2 (en) | 1990-05-11 | 1990-05-11 | Seat back |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH049160U JPH049160U (en) | 1992-01-27 |
| JPH0729898Y2 true JPH0729898Y2 (en) | 1995-07-12 |
Family
ID=31567842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4982290U Expired - Lifetime JPH0729898Y2 (en) | 1990-05-11 | 1990-05-11 | Seat back |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729898Y2 (en) |
-
1990
- 1990-05-11 JP JP4982290U patent/JPH0729898Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH049160U (en) | 1992-01-27 |
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