Work machine

Abstract

A work machine having: a working part; a holding part for holding the working part; and an operating part for rotating the working part around the holding part; further comprising: an angle sensing means for sensing the angle of the working part from the horizontal; and a controller for adjusting and holding the position of the working part by use of the operation means based on the angle sensing means.

1 . A work machine having:
 a working part;   a holding part for holding the working part; and   an operating part for rotating the working part around the holding part; further comprising:   an angle sensing means for sensing the angle of the working part from the horizontal; and   a controller for adjusting and holding the position of the working part by use of the operation means based on the angle sensing means.   
     
     
         2 . The work machine as set forth in  claim 1  wherein the angle sensing means is installed on the working part. 
     
     
         3 . The work machine as set forth in  claim 1  wherein the angle sensing means is installed on the back part of the working part. 
     
     
         4 . The work machine as set forth in  claim 1  wherein the angle sensing means is installed on the side part of the working part. 
     
     
         5 . The work machine as set forth in  claim 1 , further comprising:
 a driver's seat for the operator,   a working part control lever installed at the side of the driver's seat, for turning the working part around by the operator, and   an angle control switch equipped on the working part control lever, for starting adjusting and holding the working part to a target angular position.