Patent ID: 8821104
Filing Date: 2014-09-02
Classification: E02F,Y10S

Abstract:
1. A loader work machine comprising: a body frame including a frame main body having a bottom wall, a pair of right/left side walls and a front wall; and a pair of right/left support frame provided on rear end portions of the frame main body, each of the support frames having an inner wall and an outer wall; a cabin mounted on the body frame; a pair of right/left traveling devices supporting the body frame; a pair of right/left arms disposed on right/left lateral sides of the body frame and cabin; a working implement attached between tip end portions of the right/left arms; hydraulic actuators provided on the tip end portions of the right/left arms and configured to actuate the working implement; a pair of right/left first lift links provided at rear portions of the body frame for supporting base portions of the respective arms swingably in a vertical direction, each of the lift links including a link outer wall, a link inner wall, a link connection wall connecting the link outer wall and link inner wall, and an arm support portion provided at an upper free end portion thereof by providing an opening on a front side thereof between the link inner wall and the link outer wall; a pair of right/left second lift links provided at rear portions of the body frame more frontward than the first lift links for supporting the base portions of the respective arms swingably in the vertical direction; a pair of right/left arm cylinders extending between the base portions of the respective arms and the rear portions of the body frame for lifting and lowering the respective arms; a first link shaft provided between the inner wall and outer wall of the support frame associated therewith for pivotally supporting a lower base portion of the first lift link associated therewith: and a first arm shaft pivotally supporting the base portion of the arm associated therewith and received by the arm support portion, wherein a tip end side of the arm is lifted and lowered frontward of the body frame, wherein the base portion of the arm is supported by the arm support portion at a position adjacent the link outer wall in a transverse direction, to form a hose accommodation space by the link inner wall and an internal side face of the base portion of the arm, and wherein a hydraulic pipe arrangement extends toward the arm to be connected to the hydraulic actuator, the hydraulic pipe arrangement extending through from inside to outside of the link inner wall and running frontward of the first arm shaft and first link shaft to be disposed in the hose accommodation space.