JPS6061289U - Lattice boom for mobile crane - Google Patents
Lattice boom for mobile craneInfo
- Publication number
- JPS6061289U JPS6061289U JP15341983U JP15341983U JPS6061289U JP S6061289 U JPS6061289 U JP S6061289U JP 15341983 U JP15341983 U JP 15341983U JP 15341983 U JP15341983 U JP 15341983U JP S6061289 U JPS6061289 U JP S6061289U
- Authority
- JP
- Japan
- Prior art keywords
- diagonal
- bolt
- nut
- lattice boom
- diagonal member
- 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
Landscapes
- Jib Cranes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案の対象の一例であるタワークレーンを示
す側面図、第2図は第1図のタワークレーンのラチスブ
ームを構成する従来の繋ぎブームの端部を示す斜視図、
第3図は第2図の繋ぎブームの断面図、第4図は繋ぎブ
ームに繋ぎジブを納めた状態を示す正面図、第5図は本
考案の一実施例を示す断面図、第6図は該実施例におい
て対角材を取外した状態を示す断面図、第7図は本考案
の他の実施例を示す断面図、第8図は第7図の変形例を
示す断面図である。
A・・・ラチスブーム、9a〜9d・・・主材、16・
・・対角材、21.22・・・対角材素体、16a、1
6b、19,20,21b、22b、24,25・・・
ナツト、17.18.21a、22a、23,26.2
7・・・ボルト。
會FIG. 1 is a side view showing a tower crane which is an example of the object of the present invention, and FIG. 2 is a perspective view showing the end of a conventional connecting boom that constitutes the lattice boom of the tower crane shown in FIG.
Fig. 3 is a sectional view of the tethering boom shown in Fig. 2, Fig. 4 is a front view showing the state in which the tethering jib is stored in the tethering boom, Fig. 5 is a sectional view showing an embodiment of the present invention, and Fig. 6. 7 is a sectional view showing another embodiment of the present invention, and FIG. 8 is a sectional view showing a modification of FIG. 7. A... Lattice boom, 9a-9d... Main material, 16.
...Diagonal material, 21.22...Diagonal material material, 16a, 1
6b, 19, 20, 21b, 22b, 24, 25...
Natsu, 17.18.21a, 22a, 23, 26.2
7...Bolt. meeting
Claims (1)
方向に対向する主材間に着脱可能に対角材を取付けてな
る移動式クレーン用ラチスブームにおいて、前記対角材
の中間部または両端部に、左ねじ、左ねじを有して互い
に螺合されるボルト、ナツトを設けて該ボルトのナツト
に対するねじ込み深さを変えることにより該ボルト、ナ
ツトを含む対角材総長が変えられる構造を有し、かつ、
該対角材の両端に設けたボルトまたはナツト′と前記対
角線方向に対向する主材に設けたナツトまたはボルトと
を螺合することにより該対角材が前記主材間に取付けら
れる構造を有することを特徴とする移動式クレーン用ラ
チスブーム。In a lattice boom for a mobile crane, which has a structure with a rectangular cross-sectional shape and has a diagonal member removably attached between main members facing each other in the diagonal direction of the boom, in the middle part or both ends of the diagonal member, It has a structure in which the total length of the diagonal including the bolt and nut can be changed by providing a bolt and a nut having a left-hand thread and a left-hand thread and screwed together, and changing the screwing depth of the bolt into the nut, and ,
The diagonal member has a structure in which the diagonal member is attached between the main members by screwing together bolts or nuts provided at both ends of the diagonal member and nuts or bolts provided on the main member facing in the diagonal direction. Characteristic lattice boom for mobile cranes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15341983U JPS6061289U (en) | 1983-10-04 | 1983-10-04 | Lattice boom for mobile crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15341983U JPS6061289U (en) | 1983-10-04 | 1983-10-04 | Lattice boom for mobile crane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6061289U true JPS6061289U (en) | 1985-04-27 |
Family
ID=30339442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15341983U Pending JPS6061289U (en) | 1983-10-04 | 1983-10-04 | Lattice boom for mobile crane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6061289U (en) |
-
1983
- 1983-10-04 JP JP15341983U patent/JPS6061289U/en active Pending
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