To easily perform tension control while improving press-clamping power of wood to be crushed.
A conveyer body has: an introduction roller 55; a presser roller 54; an endless track member 56 wound around the rollers; and a tension control mechanism 64 equipped with a hydraulic cylinder 66. The hydraulic cylinder 66 is elongated/contracted and displaced with a liquid pressure, and changes the distance between the introduction roller 55 and the presser roller 54 in accordance with the elongating/contracting displacement to control the tensile force of the endless track member 56. Four of such conveyer bodies are arranged in the axial direction of a connecting beam 72b, and hydraulic piping 100B of the conveyer body disposed inside the hydraulic cylinder 66 is extended to the lateral portion of the outside conveyer body.
UEDA KAZUNORI
SEKI KAZUHIDE
YAGISHITA MAKOTO
