| 摘要 |
PURPOSE:To increase vertical swinging distance, by a method wherein the L-shaped base part of a lift arm is pivotally secured to a vehicle body, the forward end of a lift cylinder is coupled to an arm through a curved link and an induction link, and a bucket cylinder is coupled to the vehicle body through the two links. CONSTITUTION:The L-shaped bent base part of a lift arm 6 is vertically rockably and pivotally secured to the front of an earth conveying vehicle A having a shovel loader through an arm shaft 7. The base end of a hydraulic cylinder 10 for lift arm is pivotally secured to the rear of the side of a load-carrying platform 4, and the forward end thereof is coupled to the base end of the lift arm 6 through a curved link 13. Meanwhile, the base end of a cylinder 11 for elevating a bucket is respectively pivotally secured to the side of the load-carrying platform 4 and the lift arm 6 through two links 16 and 20, and the forward end thereof is interlocked and coupled to a bucket 8. This enables increase of the vertical swinging distance of the lift arm, and permits the opening of the bucket to be maintained in a horizontal state. |
