JPS6425510U - - Google Patents
Info
- Publication number
- JPS6425510U JPS6425510U JP12076687U JP12076687U JPS6425510U JP S6425510 U JPS6425510 U JP S6425510U JP 12076687 U JP12076687 U JP 12076687U JP 12076687 U JP12076687 U JP 12076687U JP S6425510 U JPS6425510 U JP S6425510U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- side chamber
- spacer
- passage
- rod
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 5
Landscapes
- Actuator (AREA)
Description
第１図は本考案の一実施例に係る油圧シリンダ
の縦断正面図、第２図、第３図は従来の油圧シリ
ンダの縦断正面図である。
１１……シリンダ、１２……ピストン、１３…
…ピストンロツド、１７……スプール、１８……
スペーサ、２０……通路、２１……チエツク弁、
Ａ……支ロツド側室、Ｂ……ロツド側室、Ｃ……
クツシヨン室、Ｔ……タンク、Ｐ……油圧源、ａ
，ｂ，ｃ，ｄ……オリフイス。
FIG. 1 is a longitudinal sectional front view of a hydraulic cylinder according to an embodiment of the present invention, and FIGS. 2 and 3 are longitudinal sectional front views of a conventional hydraulic cylinder. 11...Cylinder, 12...Piston, 13...
...Piston rod, 17...Spool, 18...
Spacer, 20... passage, 21... check valve,
A... Rod concubine, B... Rod concubine, C...
Cushion chamber, T...tank, P...hydraulic source, a
, b, c, d...orifice.
Claims (1)
ツドが移動自在に挿入され、ピストンはシリンダ
内にロツド側室と反ロツド側室を区画し、ロツド
側室はタンクと常に接続され、反ロツド側室は油
圧源と接続し、ピストンロツドの伸切り近傍でク
ツシヨンが効くようにした油圧シリンダに於て、
シリンダ内に中空なスペーサを設け、スペーサ内
にはクツシヨン室を設けると共に、中空なスプー
ルが移動自在に挿入され、スペーサには半径方向
に向けて複数のオリフイスを形成し、前記クツシ
ヨン室は通路を介してタンクと接続し、この通路
内にチエツク弁が開閉自在に設けられている油圧
シリンダ。 (2) スプールは常時リターンスプリングで下降
方向に付勢されている実用新案登録請求の範囲第
１項記載の油圧シリンダ。 (3) ロツド側室がスペーサに軸方向に設けた通
路を介してタンクに通じている実用新案登録請求
の範囲第１項記載の油圧シリンダ。 (4) 通路とチエツク弁がシリンダヘツドに設け
られている実用新案登録請求の範囲第１項記載の
油圧シリンダ。[Claims for Utility Model Registration] (1) A piston rod is movably inserted into the cylinder via a piston, the piston divides the cylinder into a rod side chamber and an anti-rod side chamber, and the rod side chamber is always connected to the tank; In a hydraulic cylinder, the side chamber opposite to the rod is connected to a hydraulic power source, and the cushion is activated near the end of the piston rod.
A hollow spacer is provided in the cylinder, a cushion chamber is provided in the spacer, a hollow spool is movably inserted, a plurality of orifices are formed in the spacer in the radial direction, and the cushion chamber has a passage. A hydraulic cylinder that is connected to a tank through a passageway and has a check valve that can be opened and closed within this passage. (2) The hydraulic cylinder according to claim 1, wherein the spool is always urged downward by a return spring. (3) The hydraulic cylinder according to claim 1, wherein the rod side chamber communicates with the tank via a passage provided in the spacer in the axial direction. (4) The hydraulic cylinder according to claim 1, wherein the passage and the check valve are provided in the cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12076687U JPS6425510U (en) | 1987-08-06 | 1987-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12076687U JPS6425510U (en) | 1987-08-06 | 1987-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6425510U true JPS6425510U (en) | 1989-02-13 |
Family
ID=31367168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12076687U Pending JPS6425510U (en) | 1987-08-06 | 1987-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6425510U (en) |
-
1987
- 1987-08-06 JP JP12076687U patent/JPS6425510U/ja active Pending