JPS60151943U - Backhoe work boom rotation mechanism - 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 drawings]

第１図は、本考案による作業ブーム回動機構を有するバ
ックホーの全体側面図、第２図は、同要部平面図、第３
図は第２図Ｉ−Ｉ断面図。 Ａ：バックホー、５：機体フレーム、１１ニブラケツト
、１１−１：同開口部、１２：作業ブーム、１２−１：
同基端、１３：支持体、１４：縦　　　・枢軸、１５：
内歯車、１８：ピニオン、１９：回動油圧モータ、１９
−１：同回転軸。Fig. 1 is an overall side view of a backhoe having a working boom rotating mechanism according to the present invention, Fig. 2 is a plan view of the main parts, and Fig. 3
The figure is a sectional view taken along line II in FIG. A: Backhoe, 5: Aircraft frame, 11 nib bracket, 11-1: Opening, 12: Work boom, 12-1:
Proximal end, 13: Support, 14: Vertical/pivot, 15:
Internal gear, 18: Pinion, 19: Rotating hydraulic motor, 19
-1: Same rotation axis.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機体フレーム５に作業ブーム１２を左右回動自在に枢支
連結したバックホーＡにおいて、機体フレーム５前端に
側面形が前方向に開いた略コ字形状のブラケット１１を
突設し、同ブラケット開口部１１−１に、作業ブーム基
端１２−１を支持するための支持体１３を、同支持体１
３及びブラケット１１を挿通した縦枢軸１４を中心とし
て左右回動自在に枢支連結し、同支持体１３に設けた内
歯車１５と、ブラケット１１に設けた回動油圧モータ１
９の回転軸１９−１に嵌着したレニオン１８との噛合を
介して支持体１３を左右回動せしめるように構成してな
るバックホーの作業ブーム回動機構。In a backhoe A in which a work boom 12 is pivotally connected to a body frame 5 so as to be rotatable left and right, a substantially U-shaped bracket 11 with a side surface that opens forward is protruded from the front end of the body frame 5. 11-1, a support 13 for supporting the work boom base end 12-1 is attached to the support 11-1.
3 and a vertical pivot 14 inserted through the bracket 11 so as to be rotatable left and right, and an internal gear 15 provided on the support 13 and a rotary hydraulic motor 1 provided on the bracket 11.
9. A work boom rotation mechanism for a backhoe configured to rotate a support body 13 left and right through engagement with a lens 18 fitted on a rotating shaft 19-1 of a backhoe.