JPH02145308U - - Google Patents
Info
- Publication number
- JPH02145308U JPH02145308U JP5518289U JP5518289U JPH02145308U JP H02145308 U JPH02145308 U JP H02145308U JP 5518289 U JP5518289 U JP 5518289U JP 5518289 U JP5518289 U JP 5518289U JP H02145308 U JPH02145308 U JP H02145308U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic chamber
- piston
- oil
- hydraulic
- hydraulic cylinder
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の一実施例を示す縦断面図、第
２図は第１図の平面図、第３図は第１図構造の作
用を示す同じく縦断面図、第４図は第２図の変形
例を示す同じく平面図である。第５図は公知の油
圧シリンダーのピストン構造を示す部分縦断面図
である。
１，２……環状溝、３……ピストン、４……外
周面、５，６……連通孔、７……端面、８，９…
…入江、１０……矢印、１１，１２……連通溝、
ＰＨ……高油圧、ＰＬ……低油圧、０３……ピス
トンロツド、０４，０５……油圧室、０９……シ
リンダー内周面。
Fig. 1 is a longitudinal sectional view showing an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a longitudinal sectional view showing the operation of the structure shown in Fig. 1, and Fig. 4 is a longitudinal sectional view of the structure shown in Fig. It is the same top view which shows the modification of a figure. FIG. 5 is a partial vertical sectional view showing the piston structure of a known hydraulic cylinder. 1, 2...Annular groove, 3...Piston, 4...Outer peripheral surface, 5, 6...Communication hole, 7...End surface, 8, 9...
...Cove, 10...Arrow, 11,12...Communication groove,
PH...High oil pressure, PL...Low oil pressure, 03...Piston rod, 04,05...Hydraulic chamber, 09...Cylinder inner circumferential surface.
Claims (1)
油圧室がそれぞれ形成された複動形油圧シリンダ
ーにおいて、上記ピストン外周面の前部、後部に
それぞれ円周方向に等間隔で凹設された比較的浅
い複数の前部油溜め、後部油溜めと、上記前部油
圧室、後部油圧室の油圧をそれぞれ上記前部油溜
めの後端、上記後部油溜めの前端に導入する油路
とを具えたことを特徴とする油圧シリンダーのピ
ストン構造。 Comparison of a double-acting hydraulic cylinder in which a front hydraulic chamber and a rear hydraulic chamber are formed in pairs by a piston, and recesses are provided at equal intervals in the circumferential direction on the front and rear parts of the piston's outer peripheral surface, respectively. A plurality of shallow front oil sumps and rear oil sumps, and oil passages that introduce hydraulic pressure from the front hydraulic chamber and the rear hydraulic chamber to the rear end of the front oil sump and the front end of the rear oil sump, respectively. The piston structure of a hydraulic cylinder is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5518289U JPH02145308U (en) | 1989-05-12 | 1989-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5518289U JPH02145308U (en) | 1989-05-12 | 1989-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02145308U true JPH02145308U (en) | 1990-12-10 |
Family
ID=31577905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5518289U Pending JPH02145308U (en) | 1989-05-12 | 1989-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02145308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0712602U (en) * | 1993-08-03 | 1995-03-03 | シーケーディ株式会社 | Hydrostatic fluid cylinder |
| JP2011106577A (en) * | 2009-11-18 | 2011-06-02 | Ckd Corp | Fluid control valve |
-
1989
- 1989-05-12 JP JP5518289U patent/JPH02145308U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0712602U (en) * | 1993-08-03 | 1995-03-03 | シーケーディ株式会社 | Hydrostatic fluid cylinder |
| JP2011106577A (en) * | 2009-11-18 | 2011-06-02 | Ckd Corp | Fluid control valve |