JPS6313672U - - Google Patents
Info
- Publication number
- JPS6313672U JPS6313672U JP10633486U JP10633486U JPS6313672U JP S6313672 U JPS6313672 U JP S6313672U JP 10633486 U JP10633486 U JP 10633486U JP 10633486 U JP10633486 U JP 10633486U JP S6313672 U JPS6313672 U JP S6313672U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- hydraulic
- compressed gas
- gas chamber
- striking
- 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
- 238000005192 partition Methods 0.000 claims 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図は本考案に係る油圧打撃工具の打撃位置
の断面図、第２図は前進切換え位置の断面図、第
３図は後退切換え位置の断面図、第４図は従来の
油圧打撃工具の断面図である。
１１……シリンダ、１２……打撃工具本体、１
３……チゼル、１５……圧縮ガス室、１６……第
３油圧室、１９……打撃ピストン、２０……第１
油圧室、２２……第２油圧室、２６……プランジ
ヤ、３１……供給管路、３２……排出管路、３２
ｇ……第７管路（プランジヤ前進用管路）、３３
……切換え弁。
Fig. 1 is a sectional view of the impact position of the hydraulic impact tool according to the present invention, Fig. 2 is a sectional view of the forward switching position, Fig. 3 is a sectional view of the backward switching position, and Fig. 4 is a sectional view of the conventional hydraulic impact tool. FIG. 11... Cylinder, 12... Impact tool body, 1
3...chisel, 15...compressed gas chamber, 16...third hydraulic chamber, 19...impact piston, 20...first
Hydraulic chamber, 22... Second hydraulic chamber, 26... Plunger, 31... Supply pipe line, 32... Discharge pipe line, 32
g...7th pipe line (plunger advancement pipe line), 33
...Switching valve.
Claims (1)
ストンが摺動自在に嵌合され、上記打撃工具本体
の後部に、上記打撃ピストンの後端部が突出する
圧縮ガス室が形成されていて、上記シリンダと打
撃ピストンとの間に形成された第１油圧室と第２
油圧室に、油圧を交互に供給する切換え弁が設け
られた油圧打撃工具において、 上記打撃工具本体の後部に、上記圧縮ガス室の
後方に位置する第３油圧室が形成され、該第３油
圧室と圧縮ガス室との間の隔壁に、両室に突出す
るプランジヤが摺動自在に嵌合されていて、上記
打撃ピストンの前進時、上記第３油圧室に切換え
弁からの排出油の一部を送り込んでプランジヤを
圧縮ガス室に突出させるプランジヤ前進用管路が
設けられていることを特徴とする油圧打撃工具。[Claims for Utility Model Registration] A compressed gas chamber in which a striking piston is slidably fitted into a cylinder formed in a striking tool body, and a rear end of the striking piston projects from the rear of the striking tool body. A first hydraulic chamber and a second hydraulic chamber are formed between the cylinder and the striking piston.
In a hydraulic impact tool in which a hydraulic chamber is provided with a switching valve that alternately supplies hydraulic pressure, a third hydraulic chamber located behind the compressed gas chamber is formed at the rear of the impact tool main body, and the third hydraulic chamber is located at the rear of the compressed gas chamber. A plunger projecting into both chambers is slidably fitted into the partition wall between the chamber and the compressed gas chamber, and when the striking piston moves forward, part of the oil discharged from the switching valve is supplied to the third hydraulic chamber. 1. A hydraulic impact tool characterized by being provided with a plunger advancement conduit through which the plunger is advanced into a compressed gas chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10633486U JPS6313672U (en) | 1986-07-10 | 1986-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10633486U JPS6313672U (en) | 1986-07-10 | 1986-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6313672U true JPS6313672U (en) | 1988-01-29 |
Family
ID=30981593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10633486U Pending JPS6313672U (en) | 1986-07-10 | 1986-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6313672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017010400A1 (en) * | 2015-07-13 | 2017-01-19 | 古河ロックドリル株式会社 | Hydraulic hammering device |
| WO2018131689A1 (en) * | 2017-01-12 | 2018-07-19 | 古河ロックドリル株式会社 | Hydraulic hammering device |
-
1986
- 1986-07-10 JP JP10633486U patent/JPS6313672U/ja active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017010400A1 (en) * | 2015-07-13 | 2017-01-19 | 古河ロックドリル株式会社 | Hydraulic hammering device |
| JPWO2017010400A1 (en) * | 2015-07-13 | 2017-12-28 | 古河ロックドリル株式会社 | Hydraulic striking device |
| US11052524B2 (en) | 2015-07-13 | 2021-07-06 | Furukawa Rock Drill Co., Ltd. | Hydraulic hammering device |
| WO2018131689A1 (en) * | 2017-01-12 | 2018-07-19 | 古河ロックドリル株式会社 | Hydraulic hammering device |
| JPWO2018131689A1 (en) * | 2017-01-12 | 2019-11-07 | 古河ロックドリル株式会社 | Hydraulic striking device |
| US11207769B2 (en) | 2017-01-12 | 2021-12-28 | Furukawa Rock Drill Co., Ltd. | Hydraulic hammering device |
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