JPS62186888U - - Google Patents
Info
- Publication number
- JPS62186888U JPS62186888U JP7497386U JP7497386U JPS62186888U JP S62186888 U JPS62186888 U JP S62186888U JP 7497386 U JP7497386 U JP 7497386U JP 7497386 U JP7497386 U JP 7497386U JP S62186888 U JPS62186888 U JP S62186888U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- unit
- sectional area
- cross
- main
- 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
- 230000007423 decrease Effects 0.000 claims 1
Landscapes
- Jib Cranes (AREA)
Description
第1図は本考案の実施例にかかるブームの全体
側面図、第2図は同一部拡大側面図、第3図は第
2図―線、第4図は同―線にそれぞれ沿
う断面図である。
1……下部ブーム、2……中間ブーム、3……
上部ブーム、11,21,31……主柱、12,
22,32……斜材、a,b,c……各単位ブー
ムの主柱径。
Figure 1 is an overall side view of a boom according to an embodiment of the present invention, Figure 2 is an enlarged side view of the same part, Figure 3 is a sectional view taken along the line in Figure 2, and Figure 4 is a sectional view taken along the line in Figure 2. be. 1...lower boom, 2...middle boom, 3...
Upper boom, 11, 21, 31...Main pillar, 12,
22, 32... Diagonal members, a, b, c... Main column diameter of each unit boom.
Claims (1)
ームの各単位ブームが隣り合うもの同士連結され
て構成され、各単位ブームはそれぞれ四本のパイ
プ製主柱間に多数の斜材が取付けられてラチス構
造に構成されるクレーンブームにおいて、上記各
単位ブームを構成する主柱の断面積が、上記下部
ブームの主柱断面積を最大として上部ブーム側に
向かつて漸次小さく形成されてなることを特徴と
するクレーンブーム。 Each unit boom, including a lower boom, one or more intermediate booms, and an upper boom, are connected to each other, and each unit boom has a lattice structure with a number of diagonal members attached between four main pipe columns. The crane boom is characterized in that the cross-sectional area of the main pillars constituting each of the unit booms is formed such that the cross-sectional area of the main pillar of the lower boom is the maximum and gradually decreases toward the upper boom side. crane boom.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7497386U JPS62186888U (en) | 1986-05-19 | 1986-05-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7497386U JPS62186888U (en) | 1986-05-19 | 1986-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62186888U true JPS62186888U (en) | 1987-11-27 |
Family
ID=30920689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7497386U Pending JPS62186888U (en) | 1986-05-19 | 1986-05-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62186888U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010254398A (en) * | 2009-04-22 | 2010-11-11 | Kobe Steel Ltd | Lattice boom of crane |
JP2011157178A (en) * | 2010-02-01 | 2011-08-18 | Kobe Steel Ltd | Crane jib |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5757112U (en) * | 1980-09-24 | 1982-04-03 |
-
1986
- 1986-05-19 JP JP7497386U patent/JPS62186888U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5757112U (en) * | 1980-09-24 | 1982-04-03 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010254398A (en) * | 2009-04-22 | 2010-11-11 | Kobe Steel Ltd | Lattice boom of crane |
JP2011157178A (en) * | 2010-02-01 | 2011-08-18 | Kobe Steel Ltd | Crane jib |