JPS6292178U - - Google Patents
Info
- Publication number
- JPS6292178U JPS6292178U JP18340085U JP18340085U JPS6292178U JP S6292178 U JPS6292178 U JP S6292178U JP 18340085 U JP18340085 U JP 18340085U JP 18340085 U JP18340085 U JP 18340085U JP S6292178 U JPS6292178 U JP S6292178U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- dust cover
- stem
- rear stem
- striking piston
- 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
- 239000000428 dust Substances 0.000 claims description 5
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
図面は本考案の一実施例に係る油圧式衝撃工具
の全体構成を示す縦断面図である。
Ａ……油圧式衝撃工具、１……シリンダ、１３
……油圧帰路側回路、１７……打撃用ピストン、
２０……後部ステム、２２……オイルシール、２
３……ダストカバー、２４……空気室、２５……
連通路、２６……逆止弁。
The drawing is a longitudinal sectional view showing the overall structure of a hydraulic impact tool according to an embodiment of the present invention. A... Hydraulic impact tool, 1... Cylinder, 13
... Hydraulic return circuit, 17 ... Impact piston,
20... Rear stem, 22... Oil seal, 2
3...Dust cover, 24...Air chamber, 25...
Communication path, 26...check valve.
Claims (1)
えた油圧式衝撃工具において、上記シリンダ後部
より突出可能に設けられた上記打撃用ピストンの
後部ステムと、該後部ステムと上記シリンダとの
間に設けられたオイルシールと、上記後部ステム
を覆うように上記シリンダ後部に設けられたダス
トカバーと、上記後部ステムに上記ダストカバー
内の空気室と上記シリンダに開口する油圧帰路側
回路とを連通可能に形成された連通路と、該連通
路内に上記ダストカバー内の空気室から上記油圧
帰路側回路にのみ流通可能に設けられた逆止弁と
を備えていることを特徴とする油圧式衝撃工具。 In a hydraulic impact tool equipped with a striking piston that reciprocates within a cylinder, a rear stem of the striking piston is provided so as to be able to protrude from a rear part of the cylinder, and a rear stem of the striking piston is provided between the rear stem and the cylinder. a dust cover provided at the rear of the cylinder so as to cover the rear stem; and a dust cover formed in the rear stem such that the air chamber in the dust cover communicates with a hydraulic return circuit opened to the cylinder. A hydraulic impact tool, comprising: a communication passage, and a check valve provided in the communication passage to allow flow from the air chamber in the dust cover only to the hydraulic return circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18340085U JPS6292178U (en) | 1985-11-28 | 1985-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18340085U JPS6292178U (en) | 1985-11-28 | 1985-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6292178U true JPS6292178U (en) | 1987-06-12 |
Family
ID=31130100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18340085U Pending JPS6292178U (en) | 1985-11-28 | 1985-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6292178U (en) |
-
1985
- 1985-11-28 JP JP18340085U patent/JPS6292178U/ja active Pending
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