JPS6397473U - - Google Patents
Info
- Publication number
- JPS6397473U JPS6397473U JP19357986U JP19357986U JPS6397473U JP S6397473 U JPS6397473 U JP S6397473U JP 19357986 U JP19357986 U JP 19357986U JP 19357986 U JP19357986 U JP 19357986U JP S6397473 U JPS6397473 U JP S6397473U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- oil passage
- cylinder
- striking
- 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.)
- Granted
Links
- 238000009527 percussion Methods 0.000 claims 4
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図は本考案の実施例にかかる油圧打撃工具
の縦断面図、第２図および第３図は第１図図示の
油圧打撃工具の作動途中の状態を示す縦断面図で
ある。
１……打撃工具本体、２……シリンダ、３……
打撃ピストン、４……チゼル、５……ピストン前
室、６……ピストン後室、７……受圧部、１６…
…第１油路、１７……第２油路、１８……逆止弁
。
FIG. 1 is a longitudinal sectional view of a hydraulic impact tool according to an embodiment of the present invention, and FIGS. 2 and 3 are longitudinal sectional views showing the hydraulic impact tool shown in FIG. 1 in a state in the middle of operation. 1...Impact tool body, 2...Cylinder, 3...
Impact piston, 4...chisel, 5...piston front chamber, 6...piston rear chamber, 7...pressure receiving part, 16...
...First oil path, 17...Second oil path, 18...Check valve.
Claims (1)
ンダ内に摺動自在に嵌合された打撃ピストンと、
該打撃ピストン前方にあつて前記シリンダ内に摺
動自在に嵌合されたチゼルと、前記シリンダと打
撃ピストンの前後端部とで形成されたピストン前
室およびピストン後室と、該ピストン前後室間に
おいて前記打撃ピストンに形成され且つ圧油の供
給により打撃ピストンを前進作動させる受圧部と
を有する油圧打撃工具であつて、前記打撃ピスト
ンに前記ピストン前室とピストン後室とを連通す
べく穿設され且つ前記打撃ピストン前進時に前記
ピストン前室の圧油を前記ピストン後室に供給可
能とする第１油路と、前記打撃ピストン後退時に
該打撃ピストンとチゼルとの間に圧油を供給すべ
く構成された第２油路と、前記打撃ピストン前進
時において圧油の逆流を防止すべく前記第２油路
に介設された逆止弁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 fitted within the cylinder;
A chisel located in front of the striking piston and slidably fitted into the cylinder, a piston front chamber and a piston rear chamber formed by the cylinder and the front and rear ends of the striking piston, and a space between the piston front and rear chambers. A hydraulic impact tool having a pressure receiving part formed on the impact piston and configured to move the impact piston forward by supplying pressure oil, wherein the impact piston is provided with a hole for communicating the piston front chamber and the piston rear chamber. and a first oil passage capable of supplying pressure oil in the front chamber of the piston to the rear chamber of the piston when the percussion piston moves forward; and a first oil passage for supplying pressure oil between the percussion piston and the chisel when the percussion piston retreats. A hydraulic impact tool, characterized in that the second oil passage is provided with a second oil passage, and a check valve interposed in the second oil passage to prevent backflow of pressure oil when the percussion piston moves forward. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19357986U JPH0540951Y2 (en) | 1986-12-15 | 1986-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19357986U JPH0540951Y2 (en) | 1986-12-15 | 1986-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6397473U true JPS6397473U (en) | 1988-06-23 |
| JPH0540951Y2 JPH0540951Y2 (en) | 1993-10-18 |
Family
ID=31149731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19357986U Expired - Lifetime JPH0540951Y2 (en) | 1986-12-15 | 1986-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540951Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05185377A (en) * | 1992-01-14 | 1993-07-27 | Konan Denki Kk | Liquid pressure hammering device |
| JPH05285859A (en) * | 1992-04-14 | 1993-11-02 | Konan Denki Kk | Hydraulic type hammering device |
-
1986
- 1986-12-15 JP JP19357986U patent/JPH0540951Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05185377A (en) * | 1992-01-14 | 1993-07-27 | Konan Denki Kk | Liquid pressure hammering device |
| JPH05285859A (en) * | 1992-04-14 | 1993-11-02 | Konan Denki Kk | Hydraulic type hammering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0540951Y2 (en) | 1993-10-18 |
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