JPH0269691U - - Google Patents
Info
- Publication number
- JPH0269691U JPH0269691U JP14988588U JP14988588U JPH0269691U JP H0269691 U JPH0269691 U JP H0269691U JP 14988588 U JP14988588 U JP 14988588U JP 14988588 U JP14988588 U JP 14988588U JP H0269691 U JPH0269691 U JP H0269691U
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary sheave
- boom
- tip
- link
- pin
- 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
Landscapes
- Jib Cranes (AREA)
Description
第１図は本考案の実施例にかかる補助シーブ取
付構造を示す側面図、第２図および第３図は同構
造部分に対する力の作用状況を説明するための図
、第４図は同構造における第１リンク、第５図は
同第２リンクの各平面図、第６図は従来構造を示
す側面図である。
１……ブーム、３……補助シーブ、９……補助
シーブピン、１１……補助シーブ取付フレーム、
１２……同フレームを構成する第１リンク、１８
……同第２リンク、１７，２１……両リンクをブ
ーム先端部に取付ける水平ピン。
Fig. 1 is a side view showing the auxiliary sheave mounting structure according to the embodiment of the present invention, Figs. 2 and 3 are diagrams for explaining the state of force acting on the same structure, and Fig. 4 is a side view showing the auxiliary sheave mounting structure according to the embodiment of the present invention. FIG. 5 is a plan view of the first link and FIG. 5 is a plan view of the second link, and FIG. 6 is a side view showing the conventional structure. 1... Boom, 3... Auxiliary sheave, 9... Auxiliary sheave pin, 11... Auxiliary sheave mounting frame,
12...The first link configuring the same frame, 18
...Second link, 17, 21...Horizontal pin that attaches both links to the tip of the boom.
Claims (1)
て補助シーブが取付けられるクレーンにおいて、
上記補助シーブ取付フレームが、作業時に補助シ
ーブピンに作用するロープ張力によつて圧縮力が
加えられるようにブーム先端部と補助シーブピン
との間に懸架されたパイプ材からなる第１リンク
と、上記ロープ張力によつて引張り力が加えられ
るように上記第１リンクよりブーム背面側におい
てブーム先端部と補助シーブピンとの間に懸架さ
れた板材からなる第２リンクとによつて構成され
たことを特徴とするクレーンの補助シーブ取付構
造。 In cranes where the auxiliary sheave is attached to the tip of the boom via the auxiliary sheave mounting frame,
The auxiliary sheave mounting frame has a first link made of a pipe material suspended between the boom tip and the auxiliary sheave pin so that compressive force is applied by the rope tension acting on the auxiliary sheave pin during work, and the rope. and a second link made of a plate suspended between the boom tip and the auxiliary sheave pin on the rear side of the boom from the first link so that a tensile force is applied by tension. Crane auxiliary sheave mounting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14988588U JPH0269691U (en) | 1988-11-16 | 1988-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14988588U JPH0269691U (en) | 1988-11-16 | 1988-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0269691U true JPH0269691U (en) | 1990-05-28 |
Family
ID=31422524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14988588U Pending JPH0269691U (en) | 1988-11-16 | 1988-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0269691U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421327U (en) * | 1977-07-14 | 1979-02-10 |
-
1988
- 1988-11-16 JP JP14988588U patent/JPH0269691U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421327U (en) * | 1977-07-14 | 1979-02-10 |
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