JPH0383246U

JPH0383246U -

Info

Publication number: JPH0383246U
Application number: JP14393189U
Authority: JP
Priority date: 1989-12-12
Filing date: 1989-12-12
Publication date: 1991-08-23

Description

[Brief explanation of the drawing]

第１図はこの考案にかかるブームの先端部を示
す側面図、第２図は第１図のＣ−Ｃより見た平面
図、第３図は第１図のＤ−Ｄより見た断面図、第
４図はこの考案のブーム先端部の組立構成を示す
斜視図、第５図は従来技術のブームをそなえた作
業アタツチメントの側面図、第６図は第５図のＡ
部詳細図、第７図は第６図のＢより見た平面図で
ある。１……作業アタツチメント、２，１４……ブー
ム、３，１５……先端部、６，１６……軸受板、
７……前補強板、８……内部補強板、１０，１８
……ブーム側面板、１１，１９……上面板、１２
，２０……下面板、１７……パイプ。 Fig. 1 is a side view showing the tip of the boom according to this invention, Fig. 2 is a plan view taken from line C-C in Fig. 1, and Fig. 3 is a sectional view taken from line D-D in Fig. 1. , FIG. 4 is a perspective view showing the assembly configuration of the boom tip of this invention, FIG. 5 is a side view of a work attachment equipped with a conventional boom, and FIG.
7 is a plan view seen from B in FIG. 6. 1... Working attachment, 2, 14... Boom, 3, 15... Tip, 6, 16... Bearing plate,
7... Front reinforcing plate, 8... Internal reinforcing plate, 10, 18
...Boom side plate, 11, 19...Top plate, 12
, 20... bottom plate, 17... pipe.

Claims

[Scope of utility model registration request]

In the boom of the work attachment attached to the front part of a small excavator, the rear edge of the pair of bearing plates at the tip of the boom is formed into an arc shape when viewed from the side, and the rear edge of the bearing plate is formed so as to follow the arc-shaped rear edge. The rear parts of the bearing plates are welded and connected to each other through a pipe having an outer circumference, and the tip of the boom side plate is formed into a concave arc shape that can correspond to the rear edge of the bearing plate. A boom for a small excavator characterized by having the tips of a boom side plate, top plate, and bottom plate welded to a bearing plate and a pipe.