JPS59140287U - crane boom - Google Patents
crane boomInfo
- Publication number
- JPS59140287U JPS59140287U JP3400983U JP3400983U JPS59140287U JP S59140287 U JPS59140287 U JP S59140287U JP 3400983 U JP3400983 U JP 3400983U JP 3400983 U JP3400983 U JP 3400983U JP S59140287 U JPS59140287 U JP S59140287U
- Authority
- JP
- Japan
- Prior art keywords
- side plates
- slide pad
- boom body
- plates
- boom
- 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
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−実施例の一部省略した側面図、第２図
はブーム本体の一部省略した側面図、第３図は第２図■
−■線に沿う断面図、第４図はブーム本体の他の実施例
の縦断面図、第５図はブーム本体の変形の説明図、第６
図は外側へ突出した補強突部の曲げに対する変形の説明
図、第７図は補強突部を絞り成形する際の折り曲げ部の
変形の説明図である。Fig. 1 is a partially omitted side view of the present invention-embodiment, Fig. 2 is a partially omitted side view of the boom body, and Fig. 3 is Fig. 2
4 is a longitudinal sectional view of another embodiment of the boom body, FIG. 5 is an explanatory diagram of deformation of the boom body, and 6
FIG. 7 is an explanatory diagram of deformation of the reinforcing protrusion projecting outward due to bending, and FIG. 7 is an explanatory diagram of deformation of the bent portion when the reinforcing protrusion is drawn.
Claims (1)
した上、下面板ｌｂ、ｌｃによりブーム本体１を構成し
たものにおいて、両側板１ａに、長手方向に沿って間隔
的に補強突部１ｄを絞り成形し、これら補強突部１ｄを
、ブーム本体１に上下引張力向にスライドパッド反力が
作用する場合外側に突出させると共にブーム本体１＆＝
上下圧縮方向にスライドパッド反力が作用する場合内側
に突出させ、両側板１ａの上、下縁を内側に折り曲げ加
工して折り曲部１ｅを形成し、この折り曲部１ｅに上、
下面板ｌｂ、 ｌｃを溶接したことを特徴とするクレ
ーンブーム。In a boom body 1 composed of elongated side plates 1a and upper and lower plates lb and lc fixed to the upper and lower edges of these side plates 1a, reinforcement is provided to both side plates 1a at intervals along the longitudinal direction. The protrusions 1d are drawn and formed, and these reinforcing protrusions 1d are made to protrude outward when a slide pad reaction force acts on the boom body 1 in the direction of vertical tensile force, and the boom body 1&=
When a slide pad reaction force acts in the vertical compression direction, the slide pad is made to protrude inwardly, and the upper and lower edges of both side plates 1a are bent inward to form a bent portion 1e, and the upper and
A crane boom characterized by welded bottom plates lb and lc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3400983U JPS59140287U (en) | 1983-03-11 | 1983-03-11 | crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3400983U JPS59140287U (en) | 1983-03-11 | 1983-03-11 | crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59140287U true JPS59140287U (en) | 1984-09-19 |
Family
ID=30164776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3400983U Pending JPS59140287U (en) | 1983-03-11 | 1983-03-11 | crane boom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59140287U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51141153A (en) * | 1975-05-27 | 1976-12-04 | Fmc Corp | Crane boom assembly and its side plate |
| JPS5950987B2 (en) * | 1976-05-20 | 1984-12-11 | 三洋電機株式会社 | Method for manufacturing hologram recording body |
-
1983
- 1983-03-11 JP JP3400983U patent/JPS59140287U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51141153A (en) * | 1975-05-27 | 1976-12-04 | Fmc Corp | Crane boom assembly and its side plate |
| JPS5950987B2 (en) * | 1976-05-20 | 1984-12-11 | 三洋電機株式会社 | Method for manufacturing hologram recording body |
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