JPS62163592U - - Google Patents
Info
- Publication number
- JPS62163592U JPS62163592U JP5197586U JP5197586U JPS62163592U JP S62163592 U JPS62163592 U JP S62163592U JP 5197586 U JP5197586 U JP 5197586U JP 5197586 U JP5197586 U JP 5197586U JP S62163592 U JPS62163592 U JP S62163592U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cylinder
- hydraulic
- striking
- valve
- 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 description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 239000010727 cylinder oil Substances 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Description
第１図は本考案の一実施例により油圧打撃工具
の断面図、第２図は同工具におけるシリンダ作動
室内の作動油供給圧力が低下した時の状態を示す
部分断面図である。
１……打撃工具本体、２……シリンダ、２ａ…
…シリンダ前空、２ｂ……シリンダ後室（作動室
）、３……打撃ピストン、７……前室用給油路、
８……後室用給油路、９……油路開閉バルブ（バ
ルブ）、１４……シリンダ排油路、１６……排油
路、１７……弁、１８……パイロツト通路。
FIG. 1 is a cross-sectional view of a hydraulic impact tool according to an embodiment of the present invention, and FIG. 2 is a partial cross-sectional view showing the state of the same tool when the hydraulic oil supply pressure in the cylinder working chamber is reduced. 1... Impact tool body, 2... Cylinder, 2a...
... Cylinder front space, 2b... Cylinder rear chamber (working chamber), 3... Impact piston, 7... Front chamber oil supply path,
8... Rear chamber oil supply path, 9... Oil passage opening/closing valve (valve), 14... Cylinder oil drain path, 16... Oil drain path, 17... Valve, 18... Pilot passage.
Claims (1)
リンダ内に摺動自在に嵌合された打撃ピストンと
、上記シリンダの作動室に作動油を給排して上記
打撃ピストンを前後動可能にするバルブとを有す
る油圧打撃工具において、一端が上記打撃ピスト
ンの前進時に作動油が供給されるシリンダ作動室
に連通される排油路と、この排油路に介装され、
上記打撃ピストンの打撃時に、上記作動油の係給
圧力の低下を検知して上記排油路を開放する弁と
を備えたことを特徴とする油圧打撃工具。 A cylinder formed in a striking tool body, a striking piston slidably fitted into the cylinder, and a valve that supplies and discharges hydraulic oil to a working chamber of the cylinder to enable the striking piston to move back and forth. A hydraulic impact tool having: an oil drain passage whose one end communicates with a cylinder working chamber to which hydraulic oil is supplied when the striking piston advances; and an oil drainage passage interposed in the oil drainage passage;
A hydraulic impact tool comprising: a valve that detects a decrease in the engagement pressure of the hydraulic oil and opens the oil drain path when the impact piston hits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5197586U JPS62163592U (en) | 1986-04-07 | 1986-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5197586U JPS62163592U (en) | 1986-04-07 | 1986-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62163592U true JPS62163592U (en) | 1987-10-17 |
Family
ID=30876732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5197586U Pending JPS62163592U (en) | 1986-04-07 | 1986-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62163592U (en) |
-
1986
- 1986-04-07 JP JP5197586U patent/JPS62163592U/ja active Pending
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