| 摘要 |
PROBLEM TO BE SOLVED: To impart sufficient strength to a swingable support body by employing a reinforcing structure which effectively disperses the concentration of stress on a pair of swing arms of the swingable support body. SOLUTION: In this dozer device of a working machine, an angle blade is supported in a horizontally swingable manner on a swingable support body which is supported in a vertically swingable manner on the side of a machine body; the swingable support body comprises a pair of right and left swing arms, and a connecting member for connecting the pair of swing arms together; the angle cylinder is provided on the outside of the one swing arm; a front end of the angle cylinder is connected to either of the horizontal sides of the angle blade; and a back end of the angle cylinder is connected to either of the swing arms. The pair of right and left swing arms 33 of the swingable support body 31 is composed of a longitudinally-long plate material, the horizontal direction of which become a plate-thickness one; a first reinforcing rib 53 is provided between an inside surface of the one swing arm 33 and a rear surface of the connecting member 35; and a second reinforcing rib 54 is provided between an inside surface of the other swing arm 33 and the rear surface of the connecting member 35. COPYRIGHT: (C)2009,JPO&INPIT
|
