JPS5889191U

JPS5889191U - Boss welding structure

Info

Publication number: JPS5889191U
Application number: JP18373481U
Authority: JP
Inventors: 清信広瀬; 古市　武
Original assignee: 日立建機株式会社
Priority date: 1981-12-11
Filing date: 1981-12-11
Publication date: 1983-06-16
Also published as: JPS6320464Y2

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 the drawing]

第１図ａは本考案の対象とするボスの溶接構造が具備さ
れる構造物の一例を示す説明図、第１図すは第１図ａの
Ａ方向矢視図、第２図ないし第５図は従来のボスの溶接
構造の一例を示す説明図で、第２図は側面図、第３図は
第２図のＢ−Ｂ断面図、第４図は第２図のＣ方向矢視図
、第５図は第２図における溶接部の拡大説明図、第６図
ないし第１０図は本考案のボスの溶接構造め一実施例を
示す説明図で、第６図は従前の第２図に対応する側面図
、第７図は第６図のＦ−Ｆ断面図、第８図は第６図のＣ
方向矢視図、第９図は第８図のＨ−Ｈ断面図、第１０図
は第９図における溶接部の拡大説明図である。３・・・ブーム、１０・・・上板、１１・・・下板、１
２゜１４・・・側板、３２・・・ボス、３３・・・平面
部、３４・・・上方コーナ一部、３５・・・下方コーナ
一部、３６゜３７・・・裏金部、３Ｂ、　　３９．　４
０．　４１．　４２゜４３．４５・・・ビード、４４・
・・バッキング材、５０゜５１・・・開先部。（ａ） − 第４図第５図FIG. 1a is an explanatory diagram showing an example of a structure equipped with a boss welding structure that is the subject of the present invention, FIG. 1 is a view taken in the direction of arrow A in FIG. 1a, and FIGS. The figures are explanatory diagrams showing an example of a conventional boss welding structure, in which Fig. 2 is a side view, Fig. 3 is a sectional view taken along line B-B in Fig. 2, and Fig. 4 is a view taken in the direction of arrow C in Fig. 2. , FIG. 5 is an enlarged explanatory view of the welded part in FIG. 2, FIGS. 6 to 10 are explanatory views showing an embodiment of the welded structure of the boss of the present invention, and FIG. 7 is a sectional view taken along line FF in FIG. 6, and FIG. 8 is a sectional view taken along line C in FIG. 6.
9 is a sectional view taken along the line HH in FIG. 8, and FIG. 10 is an enlarged explanatory view of the welded portion in FIG. 9. 3...Boom, 10...Upper plate, 11...Lower plate, 1
2゜14... Side plate, 32... Boss, 33... Plane part, 34... Part of upper corner, 35... Part of lower corner, 36° 37... Back metal part, 3B, 39. 4
0. 41. 42°43.45...bead, 44.
... Backing material, 50°51... Groove section. (a) - Figure 4 Figure 5

Claims

[Scope of claims for utility model registration] 1 to 7 to 1. . □8o-ka. A1oya.ゎ, □゛ A boss having an upper plate forming a part, a lower plate forming a lower part, and a side plate forming a side part, the boss being integrally joined with the above upper plate, lower plate, and side plate. In the welded structure, a groove is formed in the part of the boss where the upper plate and the lower plate are welded, and a back metal part is connected to the groove and which the upper plate and the lower plate can abut, respectively. The boss has a welded structure. 2. The boss according to claim 1 of the utility model registration, characterized in that an angle is formed between the boss Q side and the upper plate and the lower plate, respectively, so that a welding torch can be inserted. Welded structure.