JPS6294140U

JPS6294140U -

Info

Publication number: JPS6294140U
Application number: JP18586185U
Authority: JP
Priority date: 1985-12-02
Filing date: 1985-12-02
Publication date: 1987-06-16

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す要部の分解側面
図、第２図はその組立て状態を示す側面図、第３
図は第２図の―線断面図、第４図は同底面図
、第５図は一般的な油圧シヨベルの外観側面図、
第６図は従来のアーム構造を示す要部の側面図、
第７図はその底面図である。１０，２０……左右の側板、３０……上板、４
０，４１，４２……下板、４３……継足し板。 Fig. 1 is an exploded side view of the main parts showing an embodiment of the present invention, Fig. 2 is a side view showing its assembled state, and Fig. 3 is a side view showing the assembled state.
The figure is a sectional view taken along the line - in Figure 2, Figure 4 is a bottom view of the same, and Figure 5 is an external side view of a typical hydraulic excavator.
Figure 6 is a side view of the main parts showing the conventional arm structure;
FIG. 7 is a bottom view thereof. 10, 20...Left and right side plates, 30...Top plate, 4
0, 41, 42...lower plate, 43...additional plate.

Claims

[Scope of utility model registration request]

In the arm of a hydraulic excavator, which has a box-shaped cross section and is made up of four members: left and right side plates, an upper plate, and a lower plate, the left and right sides of the upper plate are connected to the upper sides of the left and right side plates, and the left and right side plates are connected to the upper sides of the left and right side plates. The left and right sides of the lower plate are connected to the lower side, and one end of the lower plate is bent inward so that both sides are connected to the inner surfaces of the left and right side plates. An additional plate is placed in the gap formed between one end and the inner surface of one end of the upper plate, and one end of this additional plate is attached to the inner surface of one end of the upper plate, and the other end is attached to one end of the lower plate. , a special hydraulic excavator arm structure in which both sides are connected to the inner surfaces of the left and right side plates, respectively.