JPH0349401U - - Google Patents
Info
- Publication number
- JPH0349401U JPH0349401U JP11055989U JP11055989U JPH0349401U JP H0349401 U JPH0349401 U JP H0349401U JP 11055989 U JP11055989 U JP 11055989U JP 11055989 U JP11055989 U JP 11055989U JP H0349401 U JPH0349401 U JP H0349401U
- Authority
- JP
- Japan
- Prior art keywords
- double
- acting cylinder
- upper section
- piston
- projections
- 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
- 239000006096 absorbing agent Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Actuator (AREA)
Description
第１図は本考案の実施例を示す複動シリンダの
組立断面図、第２図は複動シリンダを背凭れの起
倒装置に適用した椅子の外観図を示す。
３……フランジ、４……シート、５……複動シ
リンダ、７……背凭れ、１０……ピストン、１１
……ピストン軸、１２……シリンダ、１２ａ……
上部区画、１２ｂ……下部区画、１３ｂ，２６ｂ
……内壁端面、１４，１５……チエツク弁、１４
ａ，１５ａ……突起、１９……作動軸、２０……
つば、２１……シールリング。
FIG. 1 is an assembled sectional view of a double-acting cylinder showing an embodiment of the present invention, and FIG. 2 is an external view of a chair in which the double-acting cylinder is applied to a backrest tilting device. 3...Flange, 4...Seat, 5...Double acting cylinder, 7...Backrest, 10...Piston, 11
...Piston shaft, 12...Cylinder, 12a...
Upper section, 12b...lower section, 13b, 26b
...Inner wall end surface, 14, 15...Check valve, 14
a, 15a... protrusion, 19... operating shaft, 20...
Brim, 21... Seal ring.
Claims (1)
２１をバイパスして上部区画１２ａと下部区画１
２ｂへ連通するように設けた流路に互いに対向し
て２組のチエツク弁１４，１５を配設し、同チエ
ツク弁１４，１５にはそれぞれ上部区画１２ａ、
下部区画１２ｂに突出する突起１４ａ，１５ａを
一体に設けピストン１０の作動工程の末端で前記
突起１４ａ又は１５ａを複動シリンダ５の内壁端
面１３ｂ又は内壁端面２６ｂで押圧して前記チエ
ツク弁１４又は１５の油密状態を開放するように
した事を特徴とする複動シリンダの緩衝装置。 Bypassing the seal ring 21, the piston 10 of the double-acting cylinder 5 is connected to the upper section 12a and the lower section 1.
Two sets of check valves 14 and 15 are disposed facing each other in the flow path provided to communicate with the upper section 12a and the upper section 12b, respectively.
Projections 14a and 15a projecting from the lower section 12b are integrally provided, and at the end of the operation stroke of the piston 10, the projections 14a or 15a are pressed by the inner wall end surface 13b or the inner wall end surface 26b of the double-acting cylinder 5 to close the check valve 14 or 15. A shock absorber for a double-acting cylinder, characterized in that the oil-tight state of the cylinder is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11055989U JPH0349401U (en) | 1989-09-20 | 1989-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11055989U JPH0349401U (en) | 1989-09-20 | 1989-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0349401U true JPH0349401U (en) | 1991-05-14 |
Family
ID=31659087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11055989U Pending JPH0349401U (en) | 1989-09-20 | 1989-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349401U (en) |
-
1989
- 1989-09-20 JP JP11055989U patent/JPH0349401U/ja active Pending