To provide a ridge-making device for a mobile farm machine enabling stable ridge-making work to form a groove having a definite depth without necessitating troublesome posture-controlling operation and, accordingly, preventing the interruption of the work and the disturbance of the ridge form.
The ridge-making device for a mobile farm machine is provided with a connection part 1 connected to the attaching part on the mobile farm machine side, a share part 2 to divide the soil to the right and left under the connection part 1, and right and left shaping blades 4 expanding backward from the share part 2 and shaping the right and left ridge faces (s). Flat bottom plates 3, 3a having a size large enough to keep the machine body in the soil are attached to the lower end of the share part 2. The front half side of the body part 3 of the bottom plates 3, 3a is fixed and the rear half side 3a is formed by an elastic supporting mechanism elastically deformable in vertical direction and having a nearly constant supporting force.
Maki Reiko
Kimio Kikutani