JPH0130116Y2 - - Google Patents
Info
- Publication number
- JPH0130116Y2 JPH0130116Y2 JP1983112911U JP11291183U JPH0130116Y2 JP H0130116 Y2 JPH0130116 Y2 JP H0130116Y2 JP 1983112911 U JP1983112911 U JP 1983112911U JP 11291183 U JP11291183 U JP 11291183U JP H0130116 Y2 JPH0130116 Y2 JP H0130116Y2
- Authority
- JP
- Japan
- Prior art keywords
- headrest
- guide rail
- pivot point
- slider
- curvature
- 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
Links
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
【考案の詳細な説明】
本考案は特に自動車におけるリクライニングリ
ヤシートのヘツドレスト装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to a headrest device for a reclining rear seat in a motor vehicle.
自動車のリクライニングリヤシートにおける従
来のヘツドレストは殆どシートバツクと一体の固
定型のものであるからシートバツクをリクライニ
ングした場合、ヘツドレストもシートバツクの回
動中心のまわりに大きく回動する機構となつてい
た。そのため、座乗者は車両前方を望む姿勢から
ヘツドレストの回動に伴なつて天井を望む姿勢に
逐次移行し、視線の角度変化という不快な感覚の
発生を余儀なくされていた。 Most conventional headrests in reclining rear seats of automobiles are of a fixed type integrated with the seatback, so when the seatback is reclined, the headrest also rotates largely around the center of rotation of the seatback. As a result, the seat occupant is forced to gradually shift from a posture looking toward the front of the vehicle to a posture looking toward the ceiling as the headrest rotates, and is forced to experience the unpleasant sensation of a change in the angle of his or her line of sight.
従来のリヤシートの中でもヘツドレストの傾斜
角度を調整可能とするものはあつたが、それらは
何れも座乗者自身の手で角度調整するものである
から、その調整は甚だ煩雑で面倒なことであつ
た。 Among conventional rear seats, there were some that were able to adjust the inclination angle of the headrest, but in all of them, the angle was adjusted by the passenger himself, making the adjustment extremely complicated and troublesome. Ta.
本考案は上記問題点の解消を目的としたもの
で、シートバツクの回動に伴なう座乗者の頭部姿
勢の変化、延いては視線の角度変化を極力少なく
したことを特徴とするリクライニングリヤシート
のヘツドレスト装置を提供する。 The present invention aims to solve the above-mentioned problems, and is a reclining system that is characterized by minimizing changes in the head posture of the seated occupant due to the rotation of the seat back, as well as changes in the angle of the line of sight. Provides a headrest device for a rear seat.
本考案の一実施例を図面について説明すると、
１は後部床面、２はトランクルーム、３は後部車
輪、４は後部窓、５はリクライニングリヤシー
ト、６はシートクツシヨン、７はシートバツク、
８はヘツドレスト、９はリヤシエルフをそれぞれ
示す。１０はシートバツク７を前後に傾倒したと
きのメカニカルロツクで既知のものが使用され
る。 An embodiment of the present invention will be explained with reference to the drawings.
1 is the rear floor, 2 is the trunk room, 3 is the rear wheels, 4 is the rear window, 5 is the reclining rear seat, 6 is the seat cushion, 7 is the seat back,
8 indicates the headrest, and 9 indicates the rear shelf. Reference numeral 10 denotes a mechanical lock for when the seat back 7 is tilted forward or backward, and a known mechanical lock is used.
上記にてヘツドレスト８はシートバツク７の側
端面上部にピン１６によつて枢支された取付板１
５を介し取付けられている。ヘツドレスト８の形
状は上部が後方に屈曲し断面形状を逆Ｌ字形と
し、その屈曲部８ａの先端とリヤシエルフ９の先
端とは伸縮自在な蛇腹１１によつて連結されてい
る。そして蛇腹１１はヘツドレスト屈曲部８ａ先
端とリヤシエルフ９先端との間隙を車体巾にわた
つて被覆する。１２はスライダであつてヘツドレ
スト屈曲部８ａ下面の左右に対をなして枢着され
ているもの、１３はスライダ１２を摺動案内する
ガイドレールでその一端はリヤシエルフ９の先端
下方に位置し他端はヘツドレスト屈曲部８ａ下に
向つて漸次高さを増してゆるいカーブを画いて延
び、上記の両端は共に車体側板に固定のブラケツ
ト１４，１４に支持されている。そして、上記ス
ライダ１２とガイドレール１３との係合関係は例
えば第２図に示すような摺動可能のありみぞ形式
のものによつてもよく、またその他の形式のもの
でもよい。しかして、上記係合摺動部材１２，１
３による組部材は左右対をなして設けられるもの
に限定することなく、機能が充分であれば中央の
１ケ所に設けてもよい。 In the above, the headrest 8 is a mounting plate 1 which is pivotally supported on the upper side end surface of the seat back 7 by a pin 16.
It is attached via 5. The headrest 8 has an inverted L-shaped cross section with an upper portion bent rearward, and the tip of the bent portion 8a and the tip of the rear shelf 9 are connected by a bellows 11 that can be expanded and contracted. The bellows 11 covers the gap between the tip of the headrest bent portion 8a and the tip of the rear shelf 9 over the width of the vehicle body. Reference numeral 12 denotes sliders which are pivotally mounted in pairs on the left and right sides of the lower surface of the headrest bending portion 8a. Reference numeral 13 denotes a guide rail for slidingly guiding the slider 12, one end of which is located below the tip of the rear shelf 9, and the other end. The headrest bending portion 8a gradually increases in height and extends in a gentle curve toward the bottom of the headrest bending portion 8a, and both ends thereof are supported by brackets 14, 14 fixed to the side plates of the vehicle body. The engagement relationship between the slider 12 and the guide rail 13 may be of a slidable dovetail groove type as shown in FIG. 2, or may be of other types. Therefore, the engaging sliding members 12, 1
The assembly members according to No. 3 are not limited to being provided as a left and right pair, but may be provided at one location in the center if the function is sufficient.
次に、ガイドレール１３の曲率について説明す
る。シートバツク７のリクライニング回動による
ピン１６の位置、換言するとヘツドレスト８の枢
支点の回動半径は一定である。また、ヘツドレス
ト８の車体に対する前後方向の姿勢はヘツドレス
トの枢支点とスライダ１２の枢着点とを結ぶ直線
（以下ヘツドレスト姿勢線という）の車体に対す
る傾斜度で置換え表現することができる。そこ
で、シートバツク７のリクライニング回動に拘ら
ずヘツドレスト８の姿勢を車体に対して略一定と
するには解析幾何学の数式をまつまでもなく、シ
ートバツク７の回動に伴なう上記ヘツドレスト８
における枢支点の移動軌跡に対しヘツドレスト姿
勢線を一定の傾斜度としたスライダの上記枢着点
の移動軌跡を作図によつて容易に求めることがで
きるから、その作図軌跡によつてガイドレール１
３の曲率半径なり、その逆数である曲率を求める
ことができる。本実施例のガイドレール１３は上
記によつて形成されたものであり、その曲率は説
明するまでもなくヘツドレスト８における枢支点
移動軌跡の曲率よりも小さく設定されている。 Next, the curvature of the guide rail 13 will be explained. The position of the pin 16 due to the reclining rotation of the seat bag 7, in other words, the rotation radius of the pivot point of the headrest 8 is constant. Further, the posture of the headrest 8 in the longitudinal direction with respect to the vehicle body can be expressed by the degree of inclination of a straight line (hereinafter referred to as a headrest posture line) connecting the pivot point of the headrest and the pivot point of the slider 12 with respect to the vehicle body. Therefore, in order to keep the posture of the headrest 8 substantially constant with respect to the vehicle body regardless of the reclining rotation of the seatback 7, it is necessary to use mathematical formulas of analytical geometry.
Since the movement trajectory of the pivot point of the slider with the headrest attitude line having a constant inclination with respect to the movement trajectory of the pivot point can be easily obtained by drawing, the guide rail 1 can be easily determined by drawing the movement trajectory of the pivot point.
The radius of curvature is 3, and the curvature that is its reciprocal can be found. The guide rail 13 of this embodiment is formed as described above, and its curvature is set smaller than the curvature of the pivot point movement locus of the headrest 8, needless to say.
上記構成において、メカニカルロツク１０のレ
バー１０ａを操作してシートバツク７を前方、あ
るいは後方へ傾倒さすと、それに追従してヘツド
レスト８は前方、あるいは後方へガイドレール１
３に案内されスライダ１２を介して移動すること
になるが、この場合多少上下方向への変位を伴な
うことは説明するまでもない。前起しの状態にあ
るシートバツク７を後方に傾倒させる場合につい
て考えて見ると、シートバツク上部のピン１６の
傾動変位置はヘツドレスト８の枢支点に後方変位
と多少の下方変位のみを伝えるが、ヘツドレスト
の姿勢（詳しくはヘツドレスト姿勢線）変位には
直接係わることがない。上記ヘツドレストの姿勢
は専らガイドレール１３に案内されるスライダ１
２の変位によつて決まるものであつて、そのガイ
ドレールの曲率はヘツドレスト姿勢線が略一定の
傾斜度を保持するように設計されたものであるか
ら、ヘツドレストの姿勢はシートバツクの傾動に
係わらず略一定であつて、これに凭れる座乗者の
頭部、延いては例えば、車両前方を望む座乗者の
視線角度は殆ど変化することなく一定に保たれる
という効果が奏せられる。 In the above configuration, when the lever 10a of the mechanical lock 10 is operated to tilt the seat back 7 forward or backward, the headrest 8 will move forward or backward toward the guide rail 1.
3 and moves via the slider 12, but it goes without saying that in this case some displacement in the vertical direction is involved. Considering the case where the seat back 7 is tilted backward while it is in the forward position, the tilting position of the pin 16 at the top of the seat back transmits only rearward displacement and some downward displacement to the pivot point of the headrest 8; It is not directly related to the displacement of the posture (specifically, the headrest posture line). The posture of the headrest described above is exclusively for the slider 1 guided by the guide rail 13.
The curvature of the guide rail is designed so that the headrest posture line maintains a substantially constant inclination, so the headrest posture remains unchanged regardless of the tilting of the seatback. This is substantially constant, and the head of the seated occupant who is leaning against it, and by extension, for example, the line of sight angle of the seated occupant looking toward the front of the vehicle can be kept constant with almost no change.
ヘツドレスト８とリヤシエルフ９との間隙に設
けた伸縮自在の蛇腹１１はヘツドレストガ前後、
上下方向に移動しても上記間隙を常に覆つている
から見栄えがよく、かつリヤシエルフに置いた小
物等が上記間隙に落ち込むことを防止している。 A telescopic bellows 11 provided in the gap between the headrest 8 and the rear shelf 9 is located at the front and back of the headrest.
Even when moving in the vertical direction, the gap is always covered, giving a good appearance and preventing small items placed on the rear shelf from falling into the gap.
第１図は本考案に係るリヤシートのヘツドレス
ト装置の一実施例の側面図で、後部車体の側板及
び屋根を取除いて示す。第２図は第１図の−
線に沿つた拡大断面図である。
５……リクライニングリヤシート、７……シー
トバツク、８……ヘツドレスト、１１……蛇腹、
１２……スライダ、１３……ガイドレール、１４
……ブラケツト、１６……ピン。
FIG. 1 is a side view of an embodiment of a rear seat head restraint device according to the present invention, with the side plates and roof of the rear vehicle body removed. Figure 2 is - of Figure 1.
FIG. 3 is an enlarged cross-sectional view taken along the line. 5... Reclining rear seat, 7... Seat back, 8... Headrest, 11... Bellows,
12...Slider, 13...Guide rail, 14
...Bracket, 16...pin.
Claims (1)
たシートバツクの上部に回転自在にヘツドレスト
を枢支したものにおいて、車体前後方向に沿つて
延設され前方が後方より高くなるよう車体に支持
された曲線状のガイドレールと、上記ヘツドレス
トに枢着され上記ガイドレールに摺動自在に案内
されるスライダとを備え、上記シートバツクの回
動に伴なう上記ヘツドレスト枢支点の移動軌跡の
曲率に対し上記ガイドレールの曲率を小さくする
と共に、上記シートバツク回動の各姿勢において
上記ヘツドレストの枢支点と上記スライダの枢着
点とを結ぶ直線が車体に対し略一定角度を保持す
るように上記ガイドレールの曲率を設定したこと
を特徴とするリヤシートのヘツドレスト装置。 A headrest is rotatably supported on the upper part of a seat bag whose lower end is pivoted so that it can be tilted forward and backward, and which extends along the longitudinal direction of the vehicle and is supported by the vehicle body so that the front is higher than the rear. a curved guide rail, and a slider that is pivotally connected to the headrest and is slidably guided by the guide rail, and the slider is configured to accommodate the curvature of the movement locus of the headrest pivot point as the seat back rotates. The curvature of the guide rail is made small, and the guide rail is arranged so that the straight line connecting the pivot point of the headrest and the pivot point of the slider maintains a substantially constant angle with respect to the vehicle body in each posture of the seatback rotation. A rear seat headrest device characterized by a set curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11291183U JPS6020851U (en) | 1983-07-20 | 1983-07-20 | Rear seat headrest device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11291183U JPS6020851U (en) | 1983-07-20 | 1983-07-20 | Rear seat headrest device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6020851U JPS6020851U (en) | 1985-02-13 |
| JPH0130116Y2 true JPH0130116Y2 (en) | 1989-09-13 |
Family
ID=30261576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11291183U Granted JPS6020851U (en) | 1983-07-20 | 1983-07-20 | Rear seat headrest device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020851U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534468B2 (en) * | 1975-06-02 | 1980-09-06 | ||
| JPS5633728B2 (en) * | 1978-01-24 | 1981-08-05 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849868Y2 (en) * | 1978-08-30 | 1983-11-14 | トヨタ自動車株式会社 | Rear seat with headrest for passenger cars |
| JPS5911796Y2 (en) * | 1979-08-24 | 1984-04-10 | 三菱自動車工業株式会社 | Posture adjustable power seat |
-
1983
- 1983-07-20 JP JP11291183U patent/JPS6020851U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534468B2 (en) * | 1975-06-02 | 1980-09-06 | ||
| JPS5633728B2 (en) * | 1978-01-24 | 1981-08-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6020851U (en) | 1985-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10239419B2 (en) | Anthropomorphic pivotable upper seatback support | |
| CN100393551C (en) | Vehicular seat assembly having a cam driven self positioning head restraint | |
| JPH059863Y2 (en) | ||
| US5145232A (en) | Seat for vehicles, particularly motor cars | |
| JP2002505129A (en) | Chair back structure | |
| US11338714B2 (en) | Vehicle seat with cantilevered headrest assembly and positioning system | |
| JPH02241846A (en) | Seat for automobile | |
| JPH0197411A (en) | Seat and seat frame assembly | |
| JP2003512116A (en) | Sheet | |
| CN108725272B (en) | Foldable lifting mechanism for H-point lifting | |
| JPH0130116Y2 (en) | ||
| CN112770933A (en) | Seat device and vehicle | |
| JPS5825889Y2 (en) | Split type seat back for vehicles | |
| JPH0336300Y2 (en) | ||
| JPS6116172Y2 (en) | ||
| JPH08126548A (en) | Vehicular seat | |
| JPH0119891Y2 (en) | ||
| JPH0710599Y2 (en) | Lumbar support device for middle back seat back | |
| JPH0537703Y2 (en) | ||
| JPH0618832Y2 (en) | Vehicle seat | |
| JPH059947Y2 (en) | ||
| JP2561268Y2 (en) | Seat structure | |
| JP2555447Y2 (en) | Bus seats | |
| JPH0618833Y2 (en) | Vehicle seat | |
| JPS625392Y2 (en) |