JPH0432135U - - Google Patents
Info
- Publication number
- JPH0432135U JPH0432135U JP7490590U JP7490590U JPH0432135U JP H0432135 U JPH0432135 U JP H0432135U JP 7490590 U JP7490590 U JP 7490590U JP 7490590 U JP7490590 U JP 7490590U JP H0432135 U JPH0432135 U JP H0432135U
- Authority
- JP
- Japan
- Prior art keywords
- backrest
- seat
- support
- slider
- cam
- 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
Landscapes
- Chairs Characterized By Structure (AREA)
Description
図面は本考案の実施例を示し、第１図は椅子の
縦断側面図で第２図の−視断面図、第２図は
第１図の−視平面図、第３図は第１図の−
視断面図、第４図は第１図の−視断面図、
第５図は第１図の−視断面図、第６図は他の
実施例を示す概略断面図である。
１……脚体、２……支持機構、３……固定枠体
、４……アーム部材、９……座体、１０……座板
、１２……取り付け枠、１３……支軸、１４……
背もたれ支持体、１６……背もたれ、１８……体
重感応手段の一例としての板ばね、２１……ばね
体、２５……カム体、２５……カム面、３０……
ガイドローラ、３１……長孔、３３……滑動子。
The drawings show an embodiment of the present invention, and FIG. 1 is a vertical side view of the chair, FIG. −
4 is a cross-sectional view of FIG. 1,
FIG. 5 is a cross-sectional view taken from the side shown in FIG. 1, and FIG. 6 is a schematic cross-sectional view showing another embodiment. DESCRIPTION OF SYMBOLS 1... Leg body, 2... Support mechanism, 3... Fixed frame, 4... Arm member, 9... Seat body, 10... Seat plate, 12... Mounting frame, 13... Support shaft, 14 ……
backrest support, 16... backrest, 18... leaf spring as an example of weight sensitive means, 21... spring body, 25... cam body, 25... cam surface, 30...
Guide roller, 31... long hole, 33... slider.
Claims (1)
に、座体を後傾動自在又は下降動自在に取り付け
ると共に、背もたれを備えた背もたれ支持体を後
傾動自在に取り付け、該背もたれ支持体と前記支
持機構とのうち何れか一方に、前記背もたれ支持
体の後傾動を滑動子を介して弾性的に支持する梁
型のばね体を設ける一方、前記座体の後傾角度又
は下降量が当該座体への荷重に応じて変化するよ
うにした体重感応機構を設け、前記座体と支持機
構との間に、当該座体又は支持機構に接当するカ
ム面を備えたカム体を、前記座体の後傾動又は下
降動にてばね体の長手方向に沿つて回動するよう
に設け、該カム体に、前記滑動子を、カム体の回
動にて前記滑動子がばね体の長手方向に沿つて強
制的に移動するように設けたことを特徴とする椅
子における背もたれのロツキング装置。 A seat body is attached to a support mechanism attached to an upper part of a leg body of a chair so as to be able to freely tilt backward or downward, and a backrest support including a backrest is attached so as to be freely tiltable backward, and the backrest support and the support mechanism are A beam-shaped spring body is provided on one of the backrest supports to elastically support the backward tilting movement of the backrest support via a slider, while the backward tilting angle or the amount of descent of the seat body is A weight sensing mechanism that changes according to the load is provided, and a cam body having a cam surface that comes into contact with the seat or the support mechanism is provided between the seat and the support mechanism, and a cam body is provided behind the seat. The slider is mounted on the cam body so that the slider is rotated along the longitudinal direction of the spring body when the cam body is rotated. A locking device for a backrest of a chair, characterized in that it is provided so as to be forcibly moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990074905U JPH0618532Y2 (en) | 1990-07-13 | 1990-07-13 | Backrest locking device in chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990074905U JPH0618532Y2 (en) | 1990-07-13 | 1990-07-13 | Backrest locking device in chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0432135U true JPH0432135U (en) | 1992-03-16 |
| JPH0618532Y2 JPH0618532Y2 (en) | 1994-05-18 |
Family
ID=31615014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990074905U Expired - Lifetime JPH0618532Y2 (en) | 1990-07-13 | 1990-07-13 | Backrest locking device in chair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618532Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0271347U (en) * | 1988-11-19 | 1990-05-30 |
-
1990
- 1990-07-13 JP JP1990074905U patent/JPH0618532Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0271347U (en) * | 1988-11-19 | 1990-05-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0618532Y2 (en) | 1994-05-18 |
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