JPH03115202U - - Google Patents
Info
- Publication number
- JPH03115202U JPH03115202U JP2444190U JP2444190U JPH03115202U JP H03115202 U JPH03115202 U JP H03115202U JP 2444190 U JP2444190 U JP 2444190U JP 2444190 U JP2444190 U JP 2444190U JP H03115202 U JPH03115202 U JP H03115202U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- rod
- hydraulic pressure
- opening
- chamber
- 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
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
Landscapes
- Actuator (AREA)
Description
第１図は本考案に係る単動式液圧シリンダの断
面図、第２図は本考案の要部の拡大断面図、第３
図は従来からの複動式液圧シリンダのダンパー機
構の断面図、第４図はピストン型コンクリートポ
ンプの斜視図である。
図中、１１……単動式液圧シリンダ、１４……
シリンダチユーブ、１５……ロツド、１６……液
圧室、１７……ダンパー室、１８……スプール、
１９……圧縮室、２０……付勢部材として設けた
コイルスプリング、２１……摺動部、２２……当
接突部、２４……貫通流路、２６……絞り抵抗部
である。
Fig. 1 is a sectional view of a single-acting hydraulic cylinder according to the present invention, Fig. 2 is an enlarged sectional view of the main parts of the invention, and Fig. 3 is a sectional view of a single-acting hydraulic cylinder according to the present invention.
The figure is a sectional view of a conventional damper mechanism of a double-acting hydraulic cylinder, and FIG. 4 is a perspective view of a piston-type concrete pump. In the figure, 11...single-acting hydraulic cylinder, 14...
Cylinder tube, 15... Rod, 16... Hydraulic pressure chamber, 17... Damper chamber, 18... Spool,
19...Compression chamber, 20...Coil spring provided as a biasing member, 21...Sliding portion, 22...Abutting protrusion, 24...Through passage, 26...Aperture resistance portion.
Claims (1)
ツドを有する単動式液圧シリンダにおいて、 シリンダチユーブの液圧室内に位置するロツド
の先端にダンパー室を形成して該ダンパー室の開
口部をロツド先端面に開口し、該ダンパー室内に
スプールをロツドの軸方向に摺動可能に設けると
ともに該スプールの一端に形成した当接突部が常
にはロツド先端面の開口部から突出するように付
勢部材により付勢し、スプールには当接突部の先
端面に一端開口部が開口する貫通流路を形成して
該貫通流路の他端開口部をダンパー室内面とスプ
ールとにより囲まれる圧縮室内側に開口し、且つ
貫通流路とシリンダチユーブの液圧室内との間を
連通させる流路に絞り抵抗部を設けたことを特徴
とするダンパー機構付き単動式液圧シリンダ。[Claims for Utility Model Registration] In a single-acting hydraulic cylinder having a rod that is extended by hydraulic pressure inside the cylinder tube, a damper chamber is formed at the tip of the rod located inside the hydraulic pressure chamber of the cylinder tube. An opening is opened on the tip end surface of the rod, a spool is provided in the damper chamber so as to be slidable in the axial direction of the rod, and an abutment protrusion formed at one end of the spool always protrudes from the opening on the tip end surface of the rod. The spool is biased by the biasing member so that the spool has an opening at one end on the tip surface of the abutting protrusion, and the opening at the other end of the through passage is connected to the inner surface of the damper chamber and the spool. A single-acting hydraulic pressure type with a damper mechanism, characterized in that a throttle resistance part is provided in a flow path that opens on the inside of a compression chamber surrounded by and that communicates between the through flow path and the hydraulic pressure chamber of the cylinder tube. Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2444190U JPH03115202U (en) | 1990-03-13 | 1990-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2444190U JPH03115202U (en) | 1990-03-13 | 1990-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03115202U true JPH03115202U (en) | 1991-11-28 |
Family
ID=31527403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2444190U Pending JPH03115202U (en) | 1990-03-13 | 1990-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03115202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011063278A (en) * | 2009-09-15 | 2011-03-31 | Hironobu Shimizu | Pull tab operation assisting tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144006U (en) * | 1984-08-24 | 1986-03-24 | 株式会社 三ツ葉電機製作所 | Press-fit structure of parts |
| JPH0231009A (en) * | 1988-04-22 | 1990-02-01 | Kyokuto Kaihatsu Kogyo Co Ltd | Buffer for expansion cylinder |
-
1990
- 1990-03-13 JP JP2444190U patent/JPH03115202U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144006U (en) * | 1984-08-24 | 1986-03-24 | 株式会社 三ツ葉電機製作所 | Press-fit structure of parts |
| JPH0231009A (en) * | 1988-04-22 | 1990-02-01 | Kyokuto Kaihatsu Kogyo Co Ltd | Buffer for expansion cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011063278A (en) * | 2009-09-15 | 2011-03-31 | Hironobu Shimizu | Pull tab operation assisting tool |
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