JPS63133986U - - Google Patents
Info
- Publication number
- JPS63133986U JPS63133986U JP2607587U JP2607587U JPS63133986U JP S63133986 U JPS63133986 U JP S63133986U JP 2607587 U JP2607587 U JP 2607587U JP 2607587 U JP2607587 U JP 2607587U JP S63133986 U JPS63133986 U JP S63133986U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- oil passage
- striking
- switching
- 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.)
- Granted
Links
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図および第２図は本考案の実施例にかかる
油圧打撃工具の最大作動ストローク時の作動状態
を示す縦断面図、第３図および第４図は本考案の
実施例にかかる油圧打撃工具の最小作動ストロー
ク時の作動状態を示す縦断面図、第５図は本考案
の実施例にかかる油圧打撃工具の中間作動ストロ
ーク時における状態を示す要部断面図である。
１……打撃工具本体、２……シリンダ、３……
打撃ピストン、５……ピストン前室、６……ピス
トン後室、７……切換弁、１５……第１油圧、１
６ａ，１６ｂ……第２油圧、１８……遮蔽部材。
1 and 2 are longitudinal sectional views showing the operating state of a hydraulic impact tool according to an embodiment of the present invention at the maximum operating stroke, and FIGS. 3 and 4 are hydraulic impact tools according to an embodiment of the present invention. FIG. 5 is a longitudinal cross-sectional view showing the operating state at the minimum operating stroke, and FIG. 1...Impact tool body, 2...Cylinder, 3...
Impact piston, 5...Piston front chamber, 6...Piston rear chamber, 7...Switching valve, 15...First hydraulic pressure, 1
6a, 16b...second hydraulic pressure, 18...shielding member.
Claims (1)
ンダ内に摺動自在に挿着された打撃ピストンと、
前記シリンダと打撃ピストンとで形成されたピス
トン前室およびピストン後室と、これらピストン
前室あるいはピストン後室のどちらか一方に供給
される圧油を切り換えて前記打撃ピストンを前後
動可能にする切換弁とを有する油圧打撃工具であ
つて、前記打撃ピストンの軸方向に穿設された第
１油路と、前記打撃ピストンの軸方向に所定間隔
を有して軸に略直角に複数穿設され且つ前記第１
油路に連通され、しかも前記切換弁の切り換え作
動を行うためのパイロツト圧を排出せしめるべく
構成された第２油路と、前記第１油路内に設けら
れ、前記第２油路を選択的に開閉可能にする遮蔽
部材とが付設されている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 inserted into the cylinder;
A piston front chamber and a piston rear chamber formed by the cylinder and the striking piston, and switching that enables the striking piston to move back and forth by switching the pressure oil supplied to either the piston front chamber or the piston rear chamber. a hydraulic impact tool having a first oil passage bored in the axial direction of the striking piston; and a plurality of oil passages bored substantially perpendicularly to the axis at predetermined intervals in the axial direction of the striking piston. and the first
a second oil passage that communicates with the oil passage and is configured to discharge pilot pressure for switching the switching valve; and a second oil passage that is provided within the first oil passage and selectively controls the second oil passage A hydraulic impact tool, characterized in that a shielding member that allows opening and closing is attached to the tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2607587U JPH0525826Y2 (en) | 1987-02-23 | 1987-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2607587U JPH0525826Y2 (en) | 1987-02-23 | 1987-02-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63133986U true JPS63133986U (en) | 1988-09-01 |
| JPH0525826Y2 JPH0525826Y2 (en) | 1993-06-29 |
Family
ID=30826815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2607587U Expired - Lifetime JPH0525826Y2 (en) | 1987-02-23 | 1987-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0525826Y2 (en) |
-
1987
- 1987-02-23 JP JP2607587U patent/JPH0525826Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0525826Y2 (en) | 1993-06-29 |
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