JPH047111U - - Google Patents
Info
- Publication number
- JPH047111U JPH047111U JP4720490U JP4720490U JPH047111U JP H047111 U JPH047111 U JP H047111U JP 4720490 U JP4720490 U JP 4720490U JP 4720490 U JP4720490 U JP 4720490U JP H047111 U JPH047111 U JP H047111U
- Authority
- JP
- Japan
- Prior art keywords
- pressure oil
- chisel
- low
- low pressure
- chambers
- 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
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
第１図、第２図は本考案の第１実施例を示すも
ので、第１図はピストンの進動状態を示す油圧は
つり機の側断面図、第２図はピストンの退動状態
を示す油圧はつり機の側断面図、第３図は第２実
施例の油圧はつり機の側断面図である。
１，１Ａ……シリンダ、２，２Ａ……ピストン
、４，４Ａ……フロントキヤツプ、１７，１７Ａ
……低圧油貯溜室、１９，１９Ａ……連絡油路、
２２，２２Ａ……チゼル、２２ａ……拡径部、２
３……チゼル挿通孔、２４……スライド孔、２５
，２５Ａ……低圧油室、２８，２８Ａ……分配油
路、Ｈ……はつり機本体。
Figures 1 and 2 show a first embodiment of the present invention, with Figure 1 being a side sectional view of the hydraulic lift machine showing the piston in its advanced state, and Figure 2 showing the piston in its retracted state. FIG. 3 is a side sectional view of the hydraulic lifting machine of the second embodiment. 1,1A...Cylinder, 2,2A...Piston, 4,4A...Front cap, 17,17A
...Low pressure oil storage chamber, 19,19A...Connection oil passage,
22, 22A... Chisel, 22a... Expanded diameter part, 2
3...Chisel insertion hole, 24...Slide hole, 25
, 25A...Low pressure oil chamber, 28, 28A...Distribution oil passage, H...Chisel machine body.
Claims (1)
ロントキヤツプに並行状に穿孔された各チゼル挿
通孔内には前記シリンダ内に進退動可能に嵌挿さ
れたピストンによつて叩打される複数個の各チゼ
ルがそれぞれ軸方向へのスライド可能に嵌挿され
た油圧はつり機において、前記各チゼル挿通孔の
一部にそれぞれ形成されて前記各チゼルの拡径部
がスライド可能に密嵌された各スライド孔内の前
側には前記拡径部で区画されて低圧油が流出入す
る低圧油室をそれぞれ形成してこの各低圧油室を
前記各スライド孔の前方に形成された分配油路に
それぞれ連通するとともに、低圧油を貯溜及び吐
出するために前記はつり機本体外に設置された低
圧油貯溜室と前記分配油路とを、前記ピストンの
進動時には低圧油を前記各低圧油室内から吐出さ
せかつ前記ピストンの退動時には低圧油を前記各
低圧油室内へ流入させるために設けた連絡油路に
よつて連通したことを特徴とする油圧はつり機。 A plurality of chisel insertion holes are drilled in parallel in the front cap connected to the front of the cylinder of the main body of the chisel. In a hydraulic lifting machine in which each chisel is fitted so as to be slidable in the axial direction, each slide is formed in a part of each of the chisel insertion holes, and the enlarged diameter portion of each chisel is tightly fitted so as to be slidable therein. On the front side of the hole, a low pressure oil chamber is formed which is divided by the enlarged diameter portion and into which low pressure oil flows in and out, and each of the low pressure oil chambers is communicated with a distribution oil passage formed in front of each of the slide holes. At the same time, a low-pressure oil storage chamber and the distribution oil passage installed outside the chisel machine body for storing and discharging low-pressure oil are configured to discharge low-pressure oil from each of the low-pressure oil chambers when the piston advances. A hydraulic lifting machine characterized in that when the piston is retracted, low pressure oil is communicated with the low pressure oil chambers by communication oil passages provided for flowing into each of the low pressure oil chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4720490U JPH0730831Y2 (en) | 1990-05-02 | 1990-05-02 | Hydraulic fishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4720490U JPH0730831Y2 (en) | 1990-05-02 | 1990-05-02 | Hydraulic fishing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH047111U true JPH047111U (en) | 1992-01-22 |
| JPH0730831Y2 JPH0730831Y2 (en) | 1995-07-19 |
Family
ID=31562936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4720490U Expired - Lifetime JPH0730831Y2 (en) | 1990-05-02 | 1990-05-02 | Hydraulic fishing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730831Y2 (en) |
-
1990
- 1990-05-02 JP JP4720490U patent/JPH0730831Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730831Y2 (en) | 1995-07-19 |
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