JPS63119589U - - Google Patents
Info
- Publication number
- JPS63119589U JPS63119589U JP987287U JP987287U JPS63119589U JP S63119589 U JPS63119589 U JP S63119589U JP 987287 U JP987287 U JP 987287U JP 987287 U JP987287 U JP 987287U JP S63119589 U JPS63119589 U JP S63119589U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- tip
- attached
- telescopic
- auxiliary
- 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
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Description
第１図は本考案の伸縮ブームの一実施例を示す
伸長状態側面図、第２図は同格納状態側面図、第
３図はガイドローラの取付状態を示す断面図、第
４図はピンの着脱状態を示す断面図、第５図は同
詳細図、第６図はロープ緊張装置の側面図、第７
図は同断面図、第８図及び第９図は本考案の作用
説明図である。
３：ブーム、３ａ：ボトムブーム、３ｂ：中間
ブーム、３ｃ：トツプブーム、１３：補助ペンダ
ントロープ、１３′：折畳み自在の支持脚、１５
：ロープ緊張装置、１７：主ペンダントロープ。
Fig. 1 is a side view of an embodiment of the telescopic boom of the present invention in an extended state, Fig. 2 is a side view of the telescopic boom in its retracted state, Fig. 3 is a sectional view showing the installation state of the guide roller, and Fig. 4 is a side view of the telescopic boom of the present invention. 5 is a detailed view of the same, FIG. 6 is a side view of the rope tensioning device, and FIG.
The figure is a sectional view of the same, and FIGS. 8 and 9 are explanatory diagrams of the operation of the present invention. 3: Boom, 3a: Bottom boom, 3b: Intermediate boom, 3c: Top boom, 13: Auxiliary pendant rope, 13': Foldable support leg, 15
: Rope tension device, 17: Main pendant rope.
Claims (1)
に設けた１本又は複数本の中間ブームとにより構
成したラチスブームに於いて、トツプブームと中
間ブーム及び中間ブーム同士を順次入子式に挿入
可能とすると共に、トツプブームの先端部に主ペ
ンダントロープを装着し、かつ、基端側中間ブー
ムの先端部に、ブームを俯せたとき該ブームの重
量を支持することができる補助支持手段を設けた
ことを特徴とする伸縮ブーム。 (2) 補助支持手段は、基端側中間ブームの先端
部に取付けられた補助ペンダントロープである実
用新案登録請求の範囲第１項に記載の伸縮ブーム
。 (3) 補助ペンダントロープをロープ緊張装置を
介して中間ブームの先端部に装着してなる実用新
案登録請求の範囲第２項に記載の伸縮ブーム。 (4) 補助支持手段は、基端側中間ブームの先端
部に取付けられた折畳み自在の支持脚である実用
新案登録請求の範囲第１項に記載の伸縮ブーム。[Scope of Claim for Utility Model Registration] (1) In a lattice boom composed of a top boom, a bottom boom, and one or more intermediate booms provided between them, the top boom, the intermediate boom, and the intermediate booms are nested one after another. auxiliary support means that can be inserted into the top boom, the main pendant rope is attached to the tip of the top boom, and the weight of the boom can be supported when the boom is lowered to the tip of the proximal intermediate boom. A telescopic boom characterized by being equipped with. (2) The telescopic boom according to claim 1, wherein the auxiliary support means is an auxiliary pendant rope attached to the tip of the proximal intermediate boom. (3) The telescopic boom as set forth in claim 2 of the utility model registration claim, in which an auxiliary pendant rope is attached to the tip of the intermediate boom via a rope tensioning device. (4) The telescopic boom according to claim 1, wherein the auxiliary support means is a foldable support leg attached to the distal end of the proximal intermediate boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP987287U JPS63119589U (en) | 1987-01-28 | 1987-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP987287U JPS63119589U (en) | 1987-01-28 | 1987-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63119589U true JPS63119589U (en) | 1988-08-02 |
Family
ID=30795597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP987287U Pending JPS63119589U (en) | 1987-01-28 | 1987-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63119589U (en) |
-
1987
- 1987-01-28 JP JP987287U patent/JPS63119589U/ja active Pending