JPH0362140U - - Google Patents
Info
- Publication number
- JPH0362140U JPH0362140U JP12285989U JP12285989U JPH0362140U JP H0362140 U JPH0362140 U JP H0362140U JP 12285989 U JP12285989 U JP 12285989U JP 12285989 U JP12285989 U JP 12285989U JP H0362140 U JPH0362140 U JP H0362140U
- Authority
- JP
- Japan
- Prior art keywords
- sprocket
- guide tube
- chain
- sliding member
- end locked
- 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
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案の実施例になる伸縮アームを装
着した油圧シヨベルの全体構成説明図、第２図は
第１図の−線断面図、第３図は他の堀削装置
装着説明図、第４図は先端にバケツトが装着され
てなる従来の３段伸縮アームを装着した油圧シヨ
ベルの全体構成説明図、第５図は３段の伸縮アー
ムの模式的正面図、６図は第５図の−線断面
図である。
１……油圧シヨベル本体、２……ブーム、３…
…アームシリンダ、４……ガイド筒、４ａ，５ｂ
……ブラケツト、５……摺動アーム、７……バケ
ツト、７ａ……アースオーガ、８……上部遊転車
、９……下部遊転車、１０……チエーン、１６…
…油圧モータ、１９……スプロケツト、ｈ……堀
削装置取付孔、ｐ……連結ピン。
Fig. 1 is an explanatory diagram of the overall configuration of a hydraulic excavator equipped with a telescoping arm according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 is an explanatory diagram of another excavation device installed. Fig. 4 is an explanatory diagram of the overall configuration of a hydraulic excavator equipped with a conventional three-stage telescopic arm with a bucket attached to the tip, Fig. 5 is a schematic front view of the three-stage telescoping arm, and Fig. 6 is a schematic front view of the three-stage telescoping arm. FIG. 1...Hydraulic excavator body, 2...Boom, 3...
...Arm cylinder, 4...Guide tube, 4a, 5b
...Bracket, 5...Sliding arm, 7...Bucket, 7a...Earth auger, 8...Upper idle wheel, 9...Lower idle wheel, 10...Chain, 16...
...Hydraulic motor, 19...Sprocket, h...Drilling device mounting hole, p...Connection pin.
Claims (1)
該ガイド筒に摺動自在に嵌合され、かつ下部に堀
削装置の取付部を有する摺動部材と、該ガイド筒
の側面に配設され、駆動装置により回転されるス
プロケツトと、該摺動部材の上部に一端が係止さ
れ、前記スプロケツトに掛けられて他端が該摺動
部材の下部に係止されるチエーンと、該チエーン
の係止部と前記スプロケツトとの間に配設され、
該チエーンを該摺動部材側に押圧する遊転車とを
備えてなることを特徴とする伸縮アーム。 A guide tube that is swingably attached to a construction machine;
a sliding member that is slidably fitted into the guide tube and has a mounting portion for a digging device at its lower part; a sprocket that is arranged on a side surface of the guide tube and rotated by a drive device; a chain that has one end locked to the upper part of the member, is hooked to the sprocket, and has the other end locked to the lower part of the sliding member, and is disposed between the locking part of the chain and the sprocket,
A telescoping arm comprising an idler wheel that presses the chain toward the sliding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12285989U JPH0362140U (en) | 1989-10-19 | 1989-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12285989U JPH0362140U (en) | 1989-10-19 | 1989-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0362140U true JPH0362140U (en) | 1991-06-18 |
Family
ID=31670856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12285989U Pending JPH0362140U (en) | 1989-10-19 | 1989-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0362140U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631056B2 (en) * | 1981-05-20 | 1988-01-11 | Tokyo Optical | |
| JPH01192695A (en) * | 1988-01-25 | 1989-08-02 | Hikoma Seisakusho Kk | Boom expanding contracting mechanism |
-
1989
- 1989-10-19 JP JP12285989U patent/JPH0362140U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631056B2 (en) * | 1981-05-20 | 1988-01-11 | Tokyo Optical | |
| JPH01192695A (en) * | 1988-01-25 | 1989-08-02 | Hikoma Seisakusho Kk | Boom expanding contracting mechanism |
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