JPS5869050U - Reinforcement structure at the tip of the main boom of a backhoe - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はバックホーの全体−面図、第２図は主ブームの
側面図、第３図は同先端部分の平面図である−０　　　
　　　　− 嘲− Ａ：バックホー、Ｂ：掘削装置、４：主ブーム、４ａ：
左側板、４ｂ：右側板、４ｃ二上側板、４ｄ：下側板、
４ｅ：先端ブラケット板、４ｆ：先端閉鎖板、１１：隅
部。Figure 1 is an overall side view of the backhoe, Figure 2 is a side view of the main boom, and Figure 3 is a plan view of the tip of the boom.
- Mockery - A: Backhoe, B: Drilling rig, 4: Main boom, 4a:
Left side plate, 4b: Right side plate, 4c 2nd upper side plate, 4d: Lower side plate,
4e: Tip bracket plate, 4f: Tip closing plate, 11: Corner.

Claims (1)

【実用新案登録請求の範囲】 左右側板４ａ、４ｂと上下側板４ｃ、　４ｄとで断面略
方形に形成させるとともに、上記左右側板４ａ、４ｂの
先端にそれぞれ先端ブラケット板４ｅ。 ４ｅを延設させ、かつ上記上下側板４ｃ、４ｄの先端を
それぞれ上記先端ブラケット板４ｅ、４ｅの中程部まで
延設させて、その上下側板４ｃ、４ｄの先端間に先端閉
鎖板４ｆを設けてなるバックホー省主ブームにおいて、
上記先端閉−板４ｆの両端を上記上下側板４ｃ、４ｄの
先端部にそれぞれ重合させて、その重合状態で両者を溶
着させるように構成したことを特徴とする先端部補強構
造。　　　　−[Claims for Utility Model Registration] The left and right side plates 4a, 4b and the upper and lower side plates 4c, 4d are formed into a substantially rectangular cross section, and each of the left and right side plates 4a, 4b has a tip bracket plate 4e at its tip. 4e, and the tips of the upper and lower side plates 4c and 4d are extended to the middle portions of the tip bracket plates 4e and 4e, respectively, and a tip closing plate 4f is provided between the tips of the upper and lower side plates 4c and 4d. In the growing backhoe saving boom,
A tip reinforcement structure characterized in that both ends of the tip closing plate 4f are superimposed on the tips of the upper and lower side plates 4c and 4d, respectively, and the two are welded in the superposed state. −