JPH0612712Y2 - Seat lumbar support adjuster - Google Patents
Seat lumbar support adjusterInfo
- Publication number
- JPH0612712Y2 JPH0612712Y2 JP1989079195U JP7919589U JPH0612712Y2 JP H0612712 Y2 JPH0612712 Y2 JP H0612712Y2 JP 1989079195 U JP1989079195 U JP 1989079195U JP 7919589 U JP7919589 U JP 7919589U JP H0612712 Y2 JPH0612712 Y2 JP H0612712Y2
- Authority
- JP
- Japan
- Prior art keywords
- support plate
- support
- lumbar
- tension spring
- tension
- 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］ 本考案は車両両のシートに装着され、シート着座者の腰
椎部が接触するシートバックの突出量及び押圧力を調整
して最適な着座姿勢を得るランバーサポートの調整装置
に関する。[Detailed Description of the Invention] [Industrial application] The present invention is mounted on both seats of a vehicle, and adjusts the amount of protrusion and pressing force of the seat back that the lumbar vertebrae of the seated occupant come into contact with for optimal seating posture. The present invention relates to a lumbar support adjusting device.
［従来の技術及びその課題］ ランバーサポートは一般に、シートバックのパッド内に
埋設されたクッションばねをサポートプレートが背面か
ら押圧してシート着座者の腰椎部近辺のパッドをクッシ
ョンばねと共に押し出して調整するようになっている。
このため、サポートプレートの移動量を調整する調整装
置が装着されるが、従来の調整装置は、それぞれのシー
トに対して専用の設計となり、仕様によって付くタイプ
と付かないタイプがあり、これらタイプの相違するシー
ト間の共用が困難であった。[Prior Art and Problems Therefor] In general, a lumbar support adjusts a cushion spring embedded in a pad of a seat back by pushing a cushion plate embedded in the pad of the seat back from the back side and pushing a pad near the lumbar region of the seat occupant together with the cushion spring. It is like this.
For this reason, an adjusting device for adjusting the movement amount of the support plate is mounted, but the conventional adjusting device has a dedicated design for each seat, and there are types with and without types depending on the specifications. It was difficult to share different sheets.
また、従来のものはサイドサポートプレートの押圧力の
調整をねじりばねのねじり角度で得ていたので、調整範
囲に限界があり、充分な調整ができなかった。Further, in the conventional device, the pressing force of the side support plate is adjusted by the torsion angle of the torsion spring, so that the adjustment range is limited and sufficient adjustment cannot be performed.
本考案は上記した事情に鑑みてなされたものであり、ラ
ンバーサポート付シートと付かないシートの仕様の相違
に容易に対応することができ、かつサポートプレートに
負荷される荷重調整の範囲を広くとることのできるシー
トのランバーサポート調整装置を提供することを目的と
する。The present invention has been made in view of the above circumstances, and can easily cope with the difference in the specifications of the seat with the lumbar support and the seat without the lumber support, and widens the range of load adjustment applied to the support plate. An object of the present invention is to provide a lumbar support adjusting device for a seat that can be used.
［課題を解決するための手段」 上記目的を達成するため、本考案のシートのランバーサ
ポート調整装置はシートバック内に設けられて乗員の腰
椎を押圧するサポートプレートと、シートバックフレー
ムに固着されたブラケットに揺動可能に取付けられた支
持プレートと、この支持プレートの揺動先端とサポート
プレートとの間に懸架された引張りばねと、この引張り
ばねの後部側に位置して上記ブラケットに一端が回動自
在に取付けられ、他端がサポートプレートに取付けられ
た支持アームと、上記ブラケットに取り付けられ、支持
プレートの揺動を制御するねじ部を有する操作桿と該ね
じ部に螺合するスライダとからなる操作手段とを備え、
操作桿の回動操作によりスライダを移動させ、このスラ
イダの移動に連動した支持プレートの揺動によって上記
引張りばねの張力を調整して上記サポートフレームの腰
椎押圧力を調整することを特徴としている。[Means for Solving the Problems] In order to achieve the above object, the seat lumbar support adjusting device of the present invention is fixed to a seat back frame, which is provided in a seat back and presses a lumbar vertebra of an occupant. A support plate swingably attached to the bracket, a tension spring suspended between the swinging tip of the support plate and the support plate, and one end of the tension spring located on the rear side of the tension spring. From a support arm movably attached to the other end of the support plate, an operating rod attached to the bracket and having a screw portion for controlling the swing of the support plate, and a slider screwed to the screw portion. And operating means that
It is characterized in that the slider is moved by the turning operation of the operation rod, and the tension of the tension spring is adjusted by the swinging of the support plate in conjunction with the movement of the slider to adjust the lumbar pressing force of the support frame.
［作用］ 本考案は上記した構成になっているので支持プレート，
引張りばねの一端，支持アームの一端，及び支持プレー
トの操作手段とがシートバックフレームに固着される一
つのブラケットに取付けられて全体がユニット化されて
いる。[Operation] Since the present invention has the above-mentioned configuration, the supporting plate,
One end of the tension spring, one end of the support arm, and the operation means of the support plate are attached to one bracket fixed to the seat back frame to form a unit as a whole.
サポートプレートは支持アームによって進退可能になっ
ており、かつ引張りばねによって進出方向へ付勢されて
いる。The support plate can be moved back and forth by a support arm, and is biased in the advancing direction by a tension spring.
そして、引張りばねの引張、即ちサポートプレートの押
圧力は支持プレートの揺動によって調整される。The tension of the tension spring, that is, the pressing force of the support plate is adjusted by swinging the support plate.
［実施例］ 以下、図示した実施例に基づいて本考案を具体的に説明
する。[Embodiment] The present invention will be specifically described below based on the illustrated embodiment.
サポートプレートは乗員の腰椎を押圧するのに適した湾
曲に形成された略長方形の板状体からなり、シートバッ
ク（図示せず）内に進退可能に設けられている。ここで
サポートプレート１の進出方向とは乗員の腰椎を押圧す
る方向である。The support plate is composed of a substantially rectangular plate-like body formed in a curve suitable for pressing the lumbar vertebra of an occupant, and is provided so as to be able to move forward and backward in a seat back (not shown). Here, the advancing direction of the support plate 1 is a direction in which the lumbar vertebra of the occupant is pressed.
一方、シートバックフレーム（図示せず）に固着される
ブラケット２には略長方形の板状体からなる支持プレー
ト３がブラケット２に植設された枢支ピン４に枢支され
て揺動可能に取付けられている。この支持プレート３の
揺動先端には係止用切欠き３ａが設けられており、この
切欠き３ａに一端フック部５ａが係止され、他端フック
部５ｂがサポートプレート１の略中央に係止されて引張
りばね５が懸架されている。On the other hand, a bracket 2 fixed to a seat back frame (not shown) has a support plate 3 formed of a substantially rectangular plate-like body pivotally supported by a pivot pin 4 planted in the bracket 2 so as to be swingable. Installed. A notch 3a for locking is provided at the swinging tip end of the support plate 3, one end hook portion 5a is locked to the notch 3a, and the other end hook portion 5b is engaged at substantially the center of the support plate 1. The tension spring 5 is suspended and suspended.
また、引張りばね５の一端フック部５ａの後部側に位置
する支持プレート３の枢支ピン４に一端６ａが回動自在
に取付けられ、他端６ｂがサポートプレート１の略中央
に取付けられて支持アーム６が取付けられている。Further, one end 6a is rotatably attached to the pivot pin 4 of the support plate 3 located on the rear side of the one end hook portion 5a of the tension spring 5, and the other end 6b is attached to substantially the center of the support plate 1 for support. An arm 6 is attached.
そして、支持プレート３は枢支ピン４の更に後部側が操
作手段７に連結されてその揺動が制御されるようになっ
ている。Further, the support plate 3 is configured such that the rear side of the pivot pin 4 is connected to the operating means 7 so that the swing thereof is controlled.
操作手段７はねじ部８ａが設けられた操作桿８と、この
操作桿８のねじ部８ａに螺合されて操作桿８の回動で操
作桿８の軸方向へ移動するスライダ９とから大略構成さ
れている。操作桿８はねじ部８ａの両側を軸受金具１
０，１０で回動自在に支持されてブラケット２に取付け
られている。操作桿８のねじ部８ａとは反対側端部はブ
ラケット２をボルト１１，１１でシートバックフレーム
（図示せず）に固着した状態でシートバックの外側へ突
出するようになっており、かつこの端部に操作摘（図示
せず）が設けられて操作桿８をシートバックの外側より
操作可能になっている。スライダ９はねじ部８ａに螺合
する雌ねじ部を有して形成されており、この螺合により
操作桿８を左右回動することによってスライダ９は操作
桿８の軸方向に往復移動可能になっている。このスライ
ダ９が支持プレート３に係合することによって支持プレ
ート３と操作手段７とが連係することになる。The operating means 7 is generally composed of an operating rod 8 provided with a screw portion 8a and a slider 9 which is screwed into the screw portion 8a of the operating rod 8 and moves in the axial direction of the operating rod 8 when the operating rod 8 rotates. It is configured. The operating rod 8 has bearing fittings 1 on both sides of the threaded portion 8a.
It is rotatably supported by 0 and 10 and attached to the bracket 2. An end portion of the operation rod 8 opposite to the screw portion 8a is adapted to project to the outside of the seat back with the bracket 2 fixed to a seat back frame (not shown) with bolts 11 and 11. An operation knob (not shown) is provided at the end portion so that the operation rod 8 can be operated from the outside of the seat back. The slider 9 is formed to have a female screw portion that is screwed into the screw portion 8a, and the screw rod allows the slider 9 to reciprocate in the axial direction of the operating rod 8 by rotating the operating rod 8 left and right. ing. By engaging the slider 9 with the support plate 3, the support plate 3 and the operating means 7 are linked.
スライダ９と支持プレート３との係合は支持プレート３
の枢支ピン４よりも後部側に位置する部分に穿設された
長孔３ｂにスライダ９に植設された係合ピン９ａが係合
することによって行われる。このように本実施例のラン
バーサポートの調整装置は、シートバックフレーム（図
示せず）に固着されるブラケット２に支持プレート３、
及び操作手段７が組付けられてユニット化されている。The slider 9 and the support plate 3 are engaged with each other by the support plate 3
This is performed by engaging the engaging pin 9a planted in the slider 9 with the elongated hole 3b formed in the portion located on the rear side of the pivot pin 4. As described above, the adjusting device for the lumbar support according to the present embodiment includes the support plate 3, the bracket 2, and the support plate 3, which are fixed to the seat back frame (not shown).
And the operating means 7 is assembled and unitized.
以上のように本実施例のランバーサポートの調整装置は
構成されているが次にその作動について説明する。The adjusting device for the lumbar support according to the present embodiment is constructed as described above, and its operation will be described below.
シートバックの外側より操作桿８を回動させる。この回
動でスライダ９を矢印方向へ移動させると、係合ピン９
ａを介して支持プレート３の後部側を同方向へ回動し、
これに伴って支持プレート３の先端はα方向へ回動す
る。このα方向の回動は支持プレート３の先端がサポー
ト１から遠ざかることになり、引張りばね５の張力を増
大させる。この引張りばね５の張力の増大は、サポート
プレート１に伝達されサポートプレート１の腰椎押圧力
の増大をもたらす。The operating rod 8 is rotated from the outside of the seat back. When the slider 9 is moved in the arrow direction by this rotation, the engaging pin 9
Rotate the rear side of the support plate 3 in the same direction via a,
Along with this, the tip of the support plate 3 rotates in the α direction. This rotation in the α direction causes the tip of the support plate 3 to move away from the support 1, increasing the tension of the tension spring 5. The increase in the tension of the tension spring 5 is transmitted to the support plate 1 and causes an increase in the lumbar pressing force of the support plate 1.
操作桿８の前記とは逆回動では、支持プレート３の先端
がサポートプレート１に近ずくようにβ方向へ回動し、
引張りばね５の張力は減少する。このためサポートプレ
ート１の腰椎押圧力も減少する。When the operation rod 8 is rotated in the opposite direction to the above, the support plate 3 is rotated in the β direction so that the tip of the support plate 3 approaches the support plate 1,
The tension of the tension spring 5 is reduced. Therefore, the lumbar pressing force of the support plate 1 is also reduced.
このようにしてサポートプレート１の腰椎押圧力が調整
することができるが、この調整は操作桿８の回動角度で
行われるので無段階調整となって微調整が可能となり、
乗員が所望する腰椎押圧力を容易に得ることができる。
また、サポートプレート１の腰椎押圧力の調整は前記し
たように支持プレート３の揺動による引張りばね５の張
力調整で行われるので、その調整範囲は支持プレート３
の揺動半径を拡大することによって広くすることができ
る。In this way, the lumbar pressing force of the support plate 1 can be adjusted. However, since this adjustment is performed at the turning angle of the operating rod 8, it becomes a stepless adjustment and fine adjustment becomes possible.
The lumbar pressing force desired by the occupant can be easily obtained.
Further, the adjustment of the lumbar pressing force of the support plate 1 is performed by the tension adjustment of the tension spring 5 by the swinging of the support plate 3 as described above, and therefore the adjustment range is the support plate 3.
It can be widened by enlarging the swing radius of.
［考案の効果］ 以上述べたように本考案のランバーサポートの調整装置
はシートバックフレームに固着されるブラケットに引張
りばねと連結する支持プレート、及び支持プレートの揺
動を制御する操作手段を組付けたので全体をユニット化
することができ、ランバーサポート付シートと付かない
シートの仕様の相違に容易に対応することができる。[Advantages of the Invention] As described above, the lumbar support adjusting device of the present invention has the bracket fixed to the seat back frame, the support plate connected to the tension spring, and the operating means for controlling the swing of the support plate. Therefore, the entire unit can be unitized, and it is possible to easily deal with the difference in specifications between the seat with lumbar support and the seat without lumbar support.
また、本考案はサポートプレートの腰椎への押圧力が支
持プレートの揺動によって制御される引張りばねの張力
で得られるようになっているので、上記押圧力は広範囲
で調整可能であり、乗員の乗心地にマッチした所望の押
圧力のランバーサポートが容易に得られる。さらに、操
作桿の回動操作により操作桿のねじ部に螺合したスライ
ダを移動させ、このスライダの移動に連動した支持プレ
ートの揺動によって引張りばねの張力を調整するもので
あるから、操作桿の回動操作力は極めて低減されたもの
とすることができる。また、引張りばねはサポートプレ
ートと支持プレートの揺動先端間に懸架するだけである
から組付け作業も極めて容易なものとすることができ
る。Further, in the present invention, since the pressing force of the support plate against the lumbar vertebra is obtained by the tension of the tension spring controlled by the swing of the support plate, the pressing force can be adjusted in a wide range, and A lumbar support with a desired pressing force that matches the riding comfort can be easily obtained. Furthermore, since the slider that is screwed into the threaded portion of the operating rod is moved by the rotating operation of the operating rod, and the tension of the tension spring is adjusted by swinging the support plate in conjunction with the movement of this slider, the operating rod is adjusted. The rotational operation force of can be extremely reduced. Further, since the tension spring is only suspended between the swing ends of the support plate and the support plate, the assembling work can be made extremely easy.
図は本考案に係るシートのランバーサポート調整装置の
正面図である。 １……サポートプレート、２……ブラケット、 ３……支持プレート、４……枢支ピン、 ５……引張りばね、６……支持アーム、 ７……操作手段、８……操作桿。FIG. 1 is a front view of a seat lumbar support adjusting device according to the present invention. 1 ... Support plate, 2 ... Bracket, 3 ... Support plate, 4 ... Pivot pin, 5 ... Tension spring, 6 ... Support arm, 7 ... Operating means, 8 ... Operation rod.
Claims (1)
押圧するサポートプレートと、 シートバックフレームに固着されたブラケットに揺動可
能に取り付けられた支持プレートと、 この支持プレートの揺動先端とサポートプレートとの間
に懸架された引張りばねと、 この引張りばねの後部側に位置して上記ブラケットに一
端が回動自在に取り付けられ、他端がサポートプレート
に取り付けられた支持アームと、 上記ブラケットに取り付けられ、支持プレートの揺動を
制御するねじ部を有する操作桿と該ねじ部に螺合するス
ライダとからなる操作手段とを備え、操作桿の回動操作
によりスライダを移動させ、このスライダの移動に連動
した支持プレートの揺動によって上記引張りばねの張力
を調整して上記サポートフレームの腰椎押圧力を調整す
ることを特徴とするシートのランバーサポート調整装
置。1. A support plate provided in a seat back for pressing a lumbar vertebra of an occupant, a support plate swingably attached to a bracket fixed to a seat back frame, and a swing tip of the support plate. A tension spring suspended between the tension plate and a support plate; a support arm that is located on the rear side of the tension spring and has one end rotatably attached to the bracket and the other end attached to the support plate; And an operating means having a screw portion for controlling the swing of the support plate and a slider screwed to the screw portion, and the slider is moved by the rotating operation of the operating rod. The tension of the tension spring is adjusted by swinging the support plate in conjunction with the movement of the support frame to adjust the lumbar pressing force of the support frame. Seat lumbar support adjustment device characterized by adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989079195U JPH0612712Y2 (en) | 1989-07-05 | 1989-07-05 | Seat lumbar support adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989079195U JPH0612712Y2 (en) | 1989-07-05 | 1989-07-05 | Seat lumbar support adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0319335U JPH0319335U (en) | 1991-02-26 |
| JPH0612712Y2 true JPH0612712Y2 (en) | 1994-04-06 |
Family
ID=31623137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989079195U Expired - Lifetime JPH0612712Y2 (en) | 1989-07-05 | 1989-07-05 | Seat lumbar support adjuster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612712Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001080721A (en) * | 1999-09-09 | 2001-03-27 | Sanki Eng Co Ltd | Pulley mounting structure of small belt conveyor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0440538Y2 (en) * | 1985-07-05 | 1992-09-22 |
-
1989
- 1989-07-05 JP JP1989079195U patent/JPH0612712Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0319335U (en) | 1991-02-26 |
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