JPS6414056U - - Google Patents
Info
- Publication number
- JPS6414056U JPS6414056U JP10958487U JP10958487U JPS6414056U JP S6414056 U JPS6414056 U JP S6414056U JP 10958487 U JP10958487 U JP 10958487U JP 10958487 U JP10958487 U JP 10958487U JP S6414056 U JPS6414056 U JP S6414056U
- Authority
- JP
- Japan
- Prior art keywords
- lumbar support
- backrest
- frame
- tube
- lumbar
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 2
Description
図面は本考案の実施例を示すもので、第１図は
背もたれのランバーサポート部分を断面とした要
部の側面図、第２図はランバーサポート調節機構
の分解斜視図、第３図は規制部材の変形例の斜視
図、第４図はランバーサポート付き事務用椅子の
斜視図である。
１……回転軸、２……前部ねじ部、４……腰椎
部当て板、５……雌ねじ筒、６……案内角筒、８
……規制部材、９……係合部、１０……フレーム
、１１……基板フレーム、１２……支持フレーム
、１４……軸受ブツシユ、１５……ノブ、２０…
…背もたれ、２１……緩衝材、２２……凹部。
The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the main parts with the lumbar support portion of the backrest taken in cross section, Fig. 2 is an exploded perspective view of the lumbar support adjustment mechanism, and Fig. 3 is the regulating member. FIG. 4 is a perspective view of an office chair with a lumbar support. 1... Rotating shaft, 2... Front threaded portion, 4... Lumbar backing plate, 5... Female threaded tube, 6... Guide square tube, 8
...Regulation member, 9...Engaging portion, 10...Frame, 11...Base frame, 12...Support frame, 14...Bearing bush, 15...Knob, 20...
... Backrest, 21 ... Cushioning material, 22 ... Recess.
Claims (1)
に設けた前部ねじ部２を有する回転軸１と、該前
部ねじ部２に螺合する雌ねじ筒５とこれを囲む案
内角筒６とを背面に立設した腰椎部当て板４と、
前記案内角筒６の内面に接するように嵌挿される
係合部９が立設されてフレーム１０の前面に固設
された規制部材８と、回転軸１の後端に固定した
ノブ１１とよりなるランバーサポート調節機構を
、その腰椎部当て板４が背もたれの緩衝材２１背
面の凹部２２底に当接せしめるように設けたこと
を特徴とするランバーサポート付き事務用椅子。 A rotary shaft 1 having a front threaded portion 2 rotatably provided through the frame 10 of the backrest 20, a female threaded tube 5 screwed into the front threaded portion 2, and a guide rectangular tube 6 surrounding it are shown on the back side. A lumbar backing plate 4 installed upright,
A regulating member 8 has an engaging portion 9 that is fitted in contact with the inner surface of the square guide tube 6 and is fixed to the front surface of the frame 10, and a knob 11 that is fixed to the rear end of the rotating shaft 1. This office chair with a lumbar support is provided with a lumbar support adjustment mechanism such that the lumbar support plate 4 is brought into contact with the bottom of a recess 22 on the back of a cushioning material 21 of the backrest.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10958487U JPH0414047Y2 (en) | 1987-07-18 | 1987-07-18 | |
| US07/169,327 US4893872A (en) | 1987-07-18 | 1988-03-17 | Office chair with waist supporter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10958487U JPH0414047Y2 (en) | 1987-07-18 | 1987-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414056U true JPS6414056U (en) | 1989-01-24 |
| JPH0414047Y2 JPH0414047Y2 (en) | 1992-03-31 |
Family
ID=31345960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10958487U Expired JPH0414047Y2 (en) | 1987-07-18 | 1987-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0414047Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101438755B1 (en) * | 2012-11-27 | 2014-09-04 | 주식회사 한성교구 | Device for keeping spine upright |
-
1987
- 1987-07-18 JP JP10958487U patent/JPH0414047Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101438755B1 (en) * | 2012-11-27 | 2014-09-04 | 주식회사 한성교구 | Device for keeping spine upright |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0414047Y2 (en) | 1992-03-31 |