| 摘要 |
PURPOSE:To naturally regulate the rotating speed of a PTO shaft by projecting the driven pulley supporting shaft of a continuously variable type belt transmission mechanism in a PTO case provided on the upper part of the body case of a reduction gear reverser main body, out of said PTO case, and providing a main PTO take-out part. CONSTITUTION:The PTO input gear 18 of a PTO case 15 installed on the upper part of a main body is meshed with a normally rotating gear 10 on he main body. And, a continuously variable type belt transmission mechanism 27 is provided in the PTO case 15, and a driven pulley supporting shaft 33 which supports the driven pulley 32 of the continuously variable type belt transmission mechanism 27 and which is rotated by receiving the main body side power transmitted via the PTO input gear 18, is projected out of the PTO case 15, providing a PTO take-out part (main pulley) 38. By controlling this continuously variable type belt transmission mechanism 27, the rotating speed of the PTO shaft taken out of the driven pulley supporting shaft 33 can be optionally varied.
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