| 摘要 |
PURPOSE:To facilitate the work of the replacement and adjustment, etc., of a belt, and also constitute a head compactly. CONSTITUTION:A column is stoodly provided on a base, and a head 3 is fitted to the column. Top and low covers 7 and 8 are provided rotatably on the head 3. A tube member 10 is arranged between these top and low covers 7 and 8, and a motor 12 is located in the tube member 10. The axis line O2 of the motor shaft 12a of the motor 12 is arranged in a position eccentric to the rotation center O1 of the top and low covers 7 and 8. A protruded part 7a is formed on the top cover 7, and thereon a screw hole 7b is formed. A long hole 3d is boredly provided on the head 3, and the screw part 39a of a lever 39 penetrates the long hole 3d to be threadedly engaged with the screw hole. A pulley is fitted to the motor shaft 12a and a belt is extendedly provided in a space with the pulley provided on a quell. |
