JPS647841U - - Google Patents
Info
- Publication number
- JPS647841U JPS647841U JP10356087U JP10356087U JPS647841U JP S647841 U JPS647841 U JP S647841U JP 10356087 U JP10356087 U JP 10356087U JP 10356087 U JP10356087 U JP 10356087U JP S647841 U JPS647841 U JP S647841U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- bracket
- swing arm
- lumbar support
- attached
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Description
第１図は本考案の一実施例を示すもので、第１
Ａ図はランバーサポートを備えた車両用シートを
示す側面図、第１Ｂ図はランバーサポートの正面
図、第１Ｃ図は第１Ｂ図の−線による断面図
、第１Ｄ図は第１Ｃ図−線による概略説明図
、第２図は従来例を示すもので、第２Ａ図はラン
バーサポートを備えたシートバツクの横断面図、
第２Ｂ図はランバーサポートの斜視図である。
１……ランバーサポート、２……ピボツトアー
ム、３……フレーム、４……ブラケツト、５……
スイングアーム、５ａ，５ｂ……腕、６……ラン
バープレート、７……スプリング（コイルスプリ
ング）、７ａ……第１スプリング（第１コイルス
プリング）、７ｂ……第２スプリング（第１コイ
ルスプリング）、７ｃ……スプリングブラケツト
、８……調節装置、８ａ……操作軸、８ｂ……ス
ライダー、８ｃ……調整ダイヤル、８ｆ……係合
爪、Ｓｂ……シートバツク、Ｓ……シート。
Figure 1 shows one embodiment of the present invention.
Figure A is a side view showing a vehicle seat equipped with a lumbar support, Figure 1B is a front view of the lumbar support, Figure 1C is a sectional view taken along the - line in Figure 1B, and Figure 1D is taken along the line - Figure 1C. A schematic explanatory diagram, FIG. 2 shows a conventional example, and FIG. 2A is a cross-sectional view of a seat back equipped with a lumbar support.
FIG. 2B is a perspective view of the lumbar support. 1... Lumbar support, 2... Pivot arm, 3... Frame, 4... Bracket, 5...
Swing arm, 5a, 5b...arm, 6...lumbar plate, 7...spring (coil spring), 7a...first spring (first coil spring), 7b...second spring (first coil spring) , 7c... Spring bracket, 8... Adjustment device, 8a... Operating shaft, 8b... Slider, 8c... Adjustment dial, 8f... Engaging claw, Sb... Seat back, S... Seat.
Claims (1)
ラケツトと、該ブラケツトに揺動可能に支持され
たスイングアームと、該スイングアームの自由端
側に取付けられたランバープレートと、スプリン
グブラツトと前記スイングアームとの間に配設さ
れた第１スプリングと、一端を前記ブラケツトに
係合し且つ他端を前記スプリングブラケツトに取
付られて前記ブラケツトと前記スイングアーム間
に配設された第２スプリングと、該第２スプリン
グと係合された調節装置とから成ることを特徴と
するランバーサポート。 ２ 前記第１スプリングは圧縮方向に作用し、前
記第２スプリングは引張り方向に作用することを
特徴とする実用新案登録請求の範囲第１項記載の
ランバーサポート。 ３ 前記第１コイルスプリングは、前記第２のコ
イルスプリングのばね定数と異なることを特徴と
する実用新案登録請求の範囲第１項又は第２項記
載のランバーサポート。[Claims for Utility Model Registration] 1. A bracket attached to the frame material of the seat bag, a swing arm swingably supported by the bracket, a lumbar plate attached to the free end side of the swing arm, and a spring. a first spring disposed between the bracket and the swing arm; a first spring having one end engaged with the bracket and the other end attached to the spring bracket and disposed between the bracket and the swing arm; A lumbar support comprising a second spring and an adjustment device engaged with the second spring. 2. The lumbar support according to claim 1, wherein the first spring acts in a compression direction, and the second spring acts in a tension direction. 3. The lumbar support according to claim 1 or 2, wherein the first coil spring has a spring constant different from that of the second coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10356087U JPH0515800Y2 (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10356087U JPH0515800Y2 (en) | 1987-07-06 | 1987-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS647841U true JPS647841U (en) | 1989-01-17 |
| JPH0515800Y2 JPH0515800Y2 (en) | 1993-04-26 |
Family
ID=31334503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10356087U Expired - Lifetime JPH0515800Y2 (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515800Y2 (en) |
-
1987
- 1987-07-06 JP JP10356087U patent/JPH0515800Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0515800Y2 (en) | 1993-04-26 |
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