JPH03110088U - - Google Patents
Info
- Publication number
- JPH03110088U JPH03110088U JP1776990U JP1776990U JPH03110088U JP H03110088 U JPH03110088 U JP H03110088U JP 1776990 U JP1776990 U JP 1776990U JP 1776990 U JP1776990 U JP 1776990U JP H03110088 U JPH03110088 U JP H03110088U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- proximal
- distal end
- piston rod
- cylinder
- 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
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Jib Cranes (AREA)
Description
第１図は移動式クレーンの構造を説明する説明
図、第２図は従来の多段伸縮ブームの分割装置の
作動説明図、第３図は本考案の多段伸縮ブームの
分割装置の説明図、第４図は同連結装置の説明図
、第５図は同係合ピンの説明図、第６図は本考案
の多段伸縮ブームの分割装置の作動説明図である
。
５……基端側ブーム、９……伸縮シリンダ、６
，７，８……先端側のブーム、２１……支持部材
、２３……係合ピン。
Fig. 1 is an explanatory diagram explaining the structure of a mobile crane, Fig. 2 is an explanatory diagram of the operation of a conventional multi-stage telescopic boom dividing device, and Fig. 3 is an explanatory diagram of the multi-stage telescopic boom dividing device of the present invention. FIG. 4 is an explanatory diagram of the connecting device, FIG. 5 is an explanatory diagram of the engaging pin, and FIG. 6 is an explanatory diagram of the operation of the multistage telescopic boom dividing device of the present invention. 5... Proximal boom, 9... Telescopic cylinder, 6
, 7, 8... boom on the tip side, 21... support member, 23... engagement pin.
Claims (1)
、そのピストンロツドの先端部を基端側ブームの
基端部に取り外し自在に連結すると共に、そのシ
リンダのピストンロツド側端部を先端側のブーム
の基端部に連結した伸縮シリンダを内装してなる
多段伸縮ブームの分割装置であつて、 前記伸縮シリンダのピストンロツドの先端部に
、その下端が前記基端側ブームの下側板上面を摺
動するよう支持部材を取り付け、 前記基端側ブームにおける伸縮ブーム先端側適
所に、基端側ブームの外側からの操作により、そ
の先端部が基端側ブームの内面内に突出し前記支
持部材あるいは前記ピストンロツドの先端部に係
合する位置と基端側ブームの内面から退出した位
置に位置変更可能な係合ピンを取り付け、 前記伸縮シリンダにより基端側ブームに対して
先端側のブームを最伸長させた後、伸縮シリンダ
のピストンロツド先端部と基端側ブームの基端部
の連結を断ち、ついで伸縮シリンダを前記支持部
材あるいは前記ピストンロツドの先端部が前記係
合ピンに係合可能な位置となるよう縮小させ、前
記係合ピンを、当該係合ピンの先端部が基端側ブ
ームの内面内に突出した位置に操作し、最後に伸
縮シリンダを再度伸長させて基端側ブームに対し
て先端側のブームを押し出すよう構成してあるこ
とを特徴とする多段伸縮ブームの分割装置。[Claims for Utility Model Registration] Between the adjacent proximal boom and distal boom, the distal end of the piston rod is removably connected to the proximal end of the proximal boom, and the piston rod side of the cylinder A multi-stage telescopic boom dividing device comprising a telescopic cylinder whose end is connected to the proximal end of the boom on the distal end, the lower end of which is connected to the distal end of the piston rod of the telescopic cylinder and the lower end of which is connected to the proximal end of the boom on the proximal end. A supporting member is attached so as to slide on the upper surface of the lower plate, and the supporting member is placed at an appropriate position on the distal end side of the telescopic boom in the proximal boom, and its distal end protrudes into the inner surface of the proximal boom when operated from the outside of the proximal boom. A repositionable engagement pin is installed at a position where it engages with the distal end of the support member or the piston rod and at a position where it exits from the inner surface of the proximal boom, and the telescopic cylinder engages the distal end of the proximal boom with respect to the proximal boom. After the boom is fully extended, the connection between the piston rod tip of the telescoping cylinder and the proximal end of the proximal boom is cut off, and then the telescoping cylinder is moved so that the supporting member or the piston rod's tip can engage with the engagement pin. the engagement pin to a position where the tip of the engagement pin protrudes into the inner surface of the proximal boom, and finally the telescoping cylinder is extended again to remove the proximal boom. A multi-stage telescopic boom dividing device characterized by being configured to push out a boom on the tip side against a boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1776990U JP2507249Y2 (en) | 1990-02-23 | 1990-02-23 | Dividing device for multi-stage telescopic boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1776990U JP2507249Y2 (en) | 1990-02-23 | 1990-02-23 | Dividing device for multi-stage telescopic boom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03110088U true JPH03110088U (en) | 1991-11-12 |
| JP2507249Y2 JP2507249Y2 (en) | 1996-08-14 |
Family
ID=31520950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1776990U Expired - Fee Related JP2507249Y2 (en) | 1990-02-23 | 1990-02-23 | Dividing device for multi-stage telescopic boom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507249Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015013754A (en) * | 2013-07-04 | 2015-01-22 | リープヘル−ヴェルク エーインゲン ゲーエムベーハーＬｉｅｂｈｅｒｒ−Ｗｅｒｋ ＥｈｉｎｇｅｎＧｍｂＨ | Method of assembling crane, and coupling section thereof, telescopic boom and crane |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022084003A (en) | 2020-11-25 | 2022-06-06 | タダノ デマグ ゲーエムベーハー | Telescopic jib system of mobile crane with basic telescopic jib and additional telescopic jib and corresponding method |
-
1990
- 1990-02-23 JP JP1776990U patent/JP2507249Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015013754A (en) * | 2013-07-04 | 2015-01-22 | リープヘル−ヴェルク エーインゲン ゲーエムベーハーＬｉｅｂｈｅｒｒ−Ｗｅｒｋ ＥｈｉｎｇｅｎＧｍｂＨ | Method of assembling crane, and coupling section thereof, telescopic boom and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2507249Y2 (en) | 1996-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |