JPS6376057U

JPS6376057U -

Info

Publication number: JPS6376057U
Application number: JP17185886U
Authority: JP
Priority date: 1986-11-07
Filing date: 1986-11-07
Publication date: 1988-05-20

Description

[Brief explanation of the drawing]

第１図は本考案ブームのブラケツト部の側面図
、第２図は第１図のＦより見た平面図、第３図は
第１図のＧ―Ｇより見た正面図、第４図は油圧シ
ヨベルの全体側面図、第５図は第４図内Ａ部の従
来技術側面図、第６図は第５図のＢより見た平面
図、第７図は従来技術の他実施例側面図、第８図
は第７図のＣより見た平面図、第９図は従来技術
の別の他実施例側面図、第１０図は第９図のＤよ
り見た平面図、第１１図は従来技術のまた別の他
実施例側面図、第１２図は第１１図のＥより見た
平面図である。３，３′……ブーム、７，７′ａ，７′ｂ，７
′ｃ，７′ｄ……ブラケツト部、８……天板、１
０，１５，１７，２３……板状ブラケツト、１３
……側板、２１……立板、２２……ビーム部材。 Figure 1 is a side view of the bracket of the boom of the present invention, Figure 2 is a plan view taken from F in Figure 1, Figure 3 is a front view taken from line GG in Figure 1, and Figure 4 is a An overall side view of a hydraulic excavator, FIG. 5 is a side view of the conventional technology of section A in FIG. 4, FIG. 6 is a plan view seen from B in FIG. 5, and FIG. 7 is a side view of another embodiment of the prior art. , FIG. 8 is a plan view seen from C in FIG. 7, FIG. 9 is a side view of another embodiment of the prior art, FIG. 10 is a plan view seen from D in FIG. 9, and FIG. FIG. 12, which is a side view of yet another embodiment of the prior art, is a plan view taken from E in FIG. 11. 3, 3'...Boom, 7, 7'a, 7'b, 7
'c, 7'd... Bracket part, 8... Top plate, 1
0, 15, 17, 23...Plate bracket, 13
...Side plate, 21... Standing board, 22... Beam member.

Claims

[Scope of utility model registration request]

At the arm cylinder pivot joint provided on the top plate of the boom, which has a rectangular cross-sectional shape, a pair of left and right standing plates are installed on the top plate of the boom and directly above the side plates. Furthermore, a beam member is fixed to the inside of the vertical plate so as to connect a pair of left and right vertical plates, and a plate-shaped bracket for pivotal connection is fixed to the front side of the beam member. Features a boom structure.