JPH0367730U - - Google Patents
Info
- Publication number
- JPH0367730U JPH0367730U JP12543089U JP12543089U JPH0367730U JP H0367730 U JPH0367730 U JP H0367730U JP 12543089 U JP12543089 U JP 12543089U JP 12543089 U JP12543089 U JP 12543089U JP H0367730 U JPH0367730 U JP H0367730U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil chamber
- piston
- cylinder
- path
- 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
- 239000003921 oil Substances 0.000 claims 19
- 239000010720 hydraulic oil Substances 0.000 claims 4
- 238000007599 discharging Methods 0.000 claims 1
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１図は、本考案に係るクツシヨ付シリンダを
示した断面図、第２図は、従来のクツシヨ付シリ
ンダを示した概略図である。
２……シリンダチユーブ、３……ピストン、６
……嵌合部材、８……嵌合孔、１１……連通油路
、１２……チエツク弁。
FIG. 1 is a sectional view showing a cylinder with a cushion according to the present invention, and FIG. 2 is a schematic view showing a conventional cylinder with a cushion. 2...Cylinder tube, 3...Piston, 6
... Fitting member, 8 ... Fitting hole, 11 ... Communication oil passage, 12 ... Check valve.
Claims (1)
れぞれ給排油路を有する２つの油室に分割され、
前記各給排油路を介して一方の油室に作動油を流
入させるとともに、他方の油室から作動油を排出
させることにより前記ピストンを作動油の排出側
方向に移動させる油圧シリンダにおいて、前記ピ
ストンには嵌合部が設けられ、前記シリンダチユ
ーブ内には前記嵌合部に面した前記油室とこの油
室に設けられた前記給排油路とを連通させる嵌合
孔が設けられ、前記ピストンがストロークエンド
近傍に位置するときは、前記嵌合部が前記嵌合孔
に嵌入することにより前記嵌合部に面した前記油
室とこの油室に設けられた前記給排油路間の流路
断面積を絞るようにしたクツシヨン付シリンダで
あつて、 前記嵌合孔とは別に、前記嵌合部に面した前記
油室とこの油室に設けられた前記給排油路とを直
接連通する連通油路を設け、この連通油路上に、
当該給排油路から当該油室への作動油流入のみ行
わせる逆止弁を配設したことを特徴とするクツシ
ヨ付シリンダ。[Claims for Utility Model Registration] The oil chamber in the cylinder tube is divided by a piston into two oil chambers each having an oil supply and drainage passage,
In the hydraulic cylinder, the piston is moved in the direction toward the discharge side of the hydraulic oil by causing hydraulic oil to flow into one oil chamber through each of the oil supply and drain passages and discharging the hydraulic oil from the other oil chamber. The piston is provided with a fitting part, and the cylinder tube is provided with a fitting hole that communicates the oil chamber facing the fitting part with the oil supply and drainage path provided in the oil chamber, When the piston is located near the stroke end, the fitting portion fits into the fitting hole, thereby creating a gap between the oil chamber facing the fitting portion and the oil supply/discharge path provided in this oil chamber. A cylinder with a cushion configured to reduce a cross-sectional area of a flow passage, wherein the oil chamber facing the fitting portion and the oil supply/drainage passage provided in the oil chamber are arranged separately from the fitting hole. A communicating oil path is provided that communicates directly, and on this communicating oil path,
A cylinder with a shoe, characterized in that it is provided with a check valve that only allows hydraulic oil to flow into the oil chamber from the oil supply/drainage path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12543089U JPH0367730U (en) | 1989-10-26 | 1989-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12543089U JPH0367730U (en) | 1989-10-26 | 1989-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0367730U true JPH0367730U (en) | 1991-07-02 |
Family
ID=31673300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12543089U Pending JPH0367730U (en) | 1989-10-26 | 1989-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0367730U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993538A (en) * | 1982-11-19 | 1984-05-30 | Sumitomo Precision Prod Co Ltd | Cushion mechanism for hydraulic cylinder |
-
1989
- 1989-10-26 JP JP12543089U patent/JPH0367730U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993538A (en) * | 1982-11-19 | 1984-05-30 | Sumitomo Precision Prod Co Ltd | Cushion mechanism for hydraulic cylinder |