JPH0425558U - - Google Patents
Info
- Publication number
- JPH0425558U JPH0425558U JP6746190U JP6746190U JPH0425558U JP H0425558 U JPH0425558 U JP H0425558U JP 6746190 U JP6746190 U JP 6746190U JP 6746190 U JP6746190 U JP 6746190U JP H0425558 U JPH0425558 U JP H0425558U
- Authority
- JP
- Japan
- Prior art keywords
- backrest
- arm member
- frame
- support mechanism
- push
- 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.)
- Pending
Links
- 210000004705 lumbosacral region Anatomy 0.000 claims 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
第１図から第３図は本考案の第１実施例を示し
ており、第１図は座席の要部斜視図、第２図は座
席の全体斜視図、第３図は第１図−線断面図
、第４図は本考案の第２実施例を示しており、座
席の要部斜視図、第５図は本考案の第３実施例を
示しており、座席の要部斜視図である。
１０……座席、１１……背凭れ、２０……操作
軸、２５……カム部材、３０……アーム部材、５
０……押し部材、６０……操作力軽減用の弾性部
材。
Figures 1 to 3 show the first embodiment of the present invention, where Figure 1 is a perspective view of the main parts of the seat, Figure 2 is a perspective view of the entire seat, and Figure 3 is a line taken from Figure 1. The sectional view and FIG. 4 show the second embodiment of the present invention, and are a perspective view of the main parts of the seat, and FIG. 5 shows the third embodiment of the invention, which is a perspective view of the main parts of the seat. . DESCRIPTION OF SYMBOLS 10... Seat, 11... Backrest, 20... Operating shaft, 25... Cam member, 30... Arm member, 5
0... Pushing member, 60... Elastic member for reducing operating force.
Claims (1)
部を前方に出没し、着座する者の好みに応じて腰
部の支持感を調節するランバサポート機構を備え
た座席において、 前記ランバサポート機構は、背凭れのフレーム
にその揺動中心軸を略水平にして枢支されるアー
ム部材と、 該アーム部材の遊端部に固着され、背凭れのパ
ツド材の裏面を臨む押し部材と、 前記アーム部材の後方位置にあつて、背凭れの
フレームにその回動中心軸を略水平にして支持さ
れる操作軸と、 該操作軸に固着され、前記押し部材がパツド材
を押すべく前記アーム部材の前方へ押込んで揺動
させるカム部材と、 背凭れのフレームと前記押し部材との間に介在
し、前記押し部材を前方へ付勢する操作力軽減用
の弾性部材とを有することを特徴とする座席。[Scope of claim for utility model registration] A seat equipped with a lumbar support mechanism that pushes the padded material of the backrest from behind to cause the main part of the backrest to move forward and adjust the feeling of support for the lumbar region according to the preference of the seated person. In the lumbar support mechanism, the lumbar support mechanism includes an arm member that is pivoted to the frame of the backrest with its pivot axis substantially horizontal; a pushing member that faces the arm member; an operating shaft that is located at the rear of the arm member and is supported by the frame of the backrest with its central axis of rotation substantially horizontal; a cam member that pushes forward and swings the arm member to push the arm member; an elastic member that is interposed between the frame of the backrest and the push member and biases the push member forward to reduce operating force; A seat characterized by having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6746190U JPH0425558U (en) | 1990-06-26 | 1990-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6746190U JPH0425558U (en) | 1990-06-26 | 1990-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425558U true JPH0425558U (en) | 1992-02-28 |
Family
ID=31601054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6746190U Pending JPH0425558U (en) | 1990-06-26 | 1990-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425558U (en) |
-
1990
- 1990-06-26 JP JP6746190U patent/JPH0425558U/ja active Pending
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