JPS6132244U

JPS6132244U - Boom structure of hydraulic excavators, etc.

Info

Publication number: JPS6132244U
Application number: JP11409584U
Authority: JP
Inventors: 宏下垣内
Original assignee: 油谷重工株式会社
Priority date: 1984-07-25
Filing date: 1984-07-25
Publication date: 1986-02-26

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

[Brief explanation of drawings]

第１図〜第５図は従来から行なわれているものであるが
、第１図はフームの全体正面図、第２図は第１図のＡ−
Ａ断面図、第３図は第１図のＢより見た図、第４図は第
１図のＣ単体の斜視図、第５図は第２図において下板を
溶接する以前の状態を示す図、第６図〜第１１図は本考
案の実施例を示す図であるが、第６図はブーム全体の正
面図。第７図は第６図のＤ−Ｄ断面図、第８図は第７区のＥ−
Ｅ断面図、第９図は第６図のＦから見た図、第１０図は
第６図のＧ単体の斜視図である。１・・・・・・ブーム、２・・・・・・上板、３・・・
・・・下板、４・・・・・・側板、９・・・・・・補強
部材。Figures 1 to 5 are conventional methods; Figure 1 is an overall front view of the foom, and Figure 2 is a view taken from A--A in Figure 1.
A sectional view, Figure 3 is a view seen from B in Figure 1, Figure 4 is a perspective view of C alone in Figure 1, and Figure 5 shows the state before welding the lower plate in Figure 2. 6 to 11 are views showing an embodiment of the present invention, and FIG. 6 is a front view of the entire boom. Figure 7 is a sectional view taken along the line D-D in Figure 6, and Figure 8 is a cross-sectional view taken along line E-D of Section 7.
E sectional view, FIG. 9 is a view seen from F in FIG. 6, and FIG. 10 is a perspective view of G alone in FIG. 6. 1...Boom, 2...Top plate, 3...
...lower plate, 4...side plate, 9...reinforcement member.

Claims

[Scope of utility model registration request]

In a foot that has a rectangular cross section formed by left and right side plates, an upper plate, and a lower plate, and a reinforcing member is welded inside, the reinforcing member is configured to have an L-shaped cross section, and the lower plate is placed on the lower side of the reinforcing member. A boom structure for hydraulic excavators, etc., which is divided into front and rear parts, and this part is welded to the lower surface of a reinforcing member to join the front and rear lower plates.