JPH0299891U - - Google Patents
Info
- Publication number
- JPH0299891U JPH0299891U JP888289U JP888289U JPH0299891U JP H0299891 U JPH0299891 U JP H0299891U JP 888289 U JP888289 U JP 888289U JP 888289 U JP888289 U JP 888289U JP H0299891 U JPH0299891 U JP H0299891U
- Authority
- JP
- Japan
- Prior art keywords
- jib
- tip
- attached
- movable part
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 claims description 3
Landscapes
- Jib Cranes (AREA)
Description
第１図は本考案の実施例を示すジブ張出し状態
の側面図、第２図は同一部切欠平面図、第３図は
第１図の一部拡大図、第４図は第３図−線拡
大断面図、第５図は本考案の第２実施例を示す第
３図相当図、第６図は本考案のさらに別の実施例
を示す第４図相当図、第７図は従来例を示すジブ
張出し状態の側面図、第８図は同平面図、第９図
は第７図の一部拡大図、第１０図は同平面図であ
る。
１……ブーム、６……ジブ、３……サスペンシ
ヨンロツド、７……ジブ起伏シリンダ、７１……
同シリンダのピストンロツド、７２……同シリン
ダチユーブ、７３……同シリンダの可動部とサス
ペンシヨンロツドの先端部とを連結する連結ピン
兼ガイド部材、６６……ジブ側の長孔。
Fig. 1 is a side view of the jib in an extended state showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view of the same, Fig. 3 is a partially enlarged view of Fig. 1, and Fig. 4 is a line taken from Fig. 3. An enlarged sectional view, FIG. 5 is a view equivalent to FIG. 3 showing a second embodiment of the present invention, FIG. 6 is a view equivalent to FIG. 4 showing another embodiment of the invention, and FIG. 7 is a conventional example. FIG. 8 is a plan view of the jib shown in the extended state, FIG. 9 is a partially enlarged view of FIG. 7, and FIG. 10 is a plan view of the same. 1...Boom, 6...Jib, 3...Suspension rod, 7...Jib hoisting cylinder, 71...
Piston rod of the same cylinder, 72...Cylinder tube, 73...Connecting pin and guide member connecting the movable part of the cylinder and the tip of the suspension rod, 66...Elongated hole on the jib side.
Claims (1)
伏シリンダを、シリンダチユーブとピストンロツ
ドの一方が固定部、他方が可動部となり、可動部
がジブ先端側に位置する状態でジブ長さ方向に取
付け、サスペンシヨンロツドの先端部をこのジブ
起伏シリンダの可動部の先端部に、基端部をブー
ム先端部にそれぞれ取付けてなることを特徴とす
るクレーンのジブ起伏装置。 ２ ジブ起伏シリンダにおける可動部の先端部に
ガイド部材を設ける一方、ジブ側にこのガイド部
材をジブ長さ方向に移動案内する長孔を設けたこ
とを特徴とする請求項１記載のクレーンのジブ起
伏装置。[Claims for Utility Model Registration] 1. A jib hoisting cylinder is attached to a jib extending from the tip of the boom, one of the cylinder tube and the piston rod is a fixed part and the other is a movable part, and the movable part is located at the tip of the jib. The jib hoisting mechanism for a crane is characterized in that the jib is attached in the length direction in the jib hoisting condition, and the tip of the suspension rod is attached to the tip of the movable part of the jib hoisting cylinder, and the base end is attached to the tip of the boom. Device. 2. The crane jib according to claim 1, wherein a guide member is provided at the tip of the movable part of the jib hoisting cylinder, and a long hole is provided on the jib side for guiding the movement of the guide member in the jib length direction. Lifting equipment.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP888289U JPH0299891U (en) | 1989-01-26 | 1989-01-26 | |
| US07/372,454 US4967917A (en) | 1988-08-03 | 1989-06-28 | Jib derricking gear for a crane |
| KR2019890011300U KR920003797Y1 (en) | 1988-08-03 | 1989-07-31 | Jib derricking gear for a crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP888289U JPH0299891U (en) | 1989-01-26 | 1989-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0299891U true JPH0299891U (en) | 1990-08-08 |
Family
ID=31215137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP888289U Pending JPH0299891U (en) | 1988-08-03 | 1989-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0299891U (en) |
-
1989
- 1989-01-26 JP JP888289U patent/JPH0299891U/ja active Pending
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