BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION

• Main Authors: MATSUURA KOHEI, MORITA GO, YOSHIZAWA HIROYASU, ATSUMI TAKASHI, YOSHIDA YOSHIHIRO, OKAMOTO AKIHISA
• Format: Patent
• Language: English; Japanese
• Published: 01.06.2017
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a belt type continuously variable transmission which, even when using a screw mechanism in which efficiency in converting a linear motion of a screw shaft to a rotary motion is lower than efficiency in converting a rotary motion to a linear motion, can easily adjust a stroke position of the screw shaft.SOLUTION: An operation part 25 is provided, which can rotate a nut member 21 without depending on turning force of a motor 19, and therefore, by operating the operation part 25 to rotate the nut member 21, a screw shaft 13 can perform a stroke. Accordingly, even when using a screw mechanism in which backward efficiency of a screw is lower than forward efficiency, the stroke position of the screw shaft 13 can be easily adjusted.SELECTED DRAWING: Figure 3 【課題】ねじ軸の直線運動を回転運動に変換するときの効率が、回転運動を直線運動に変換するときの効率よりも低い送りねじ機構を用いるような場合でも、ねじ軸のストローク位置を簡単に調整することができるベルト式無段変速機を提供する。【解決手段】モータ１９の回転力に依らずナット部材２１を回転させることが可能な操作部２５を設けたので、操作部２５を操作してナット部材２１を回転させることでねじ軸１３をストロークさせることができる。従って、ねじの逆効率が正効率よりも低い送りねじ機構を用いるような場合でも、ねじ軸１３のストローク位置を簡単に調整することができる。【選択図】 図３