ROTARY MEMBER FOR NON-STAGE TRANSMISSION

• Main Authors: HIDAKA KOICHI, TSUCHIYA SHINJI, YANAKA SATOSHI, TOTSUKA HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 28.10.2021
• 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

To solve a problem that large internal stress may remain in a recessed part of a rotary member after processing and cause damage of the rotary member when the internal stress remains.SOLUTION: A casing 52A serving as a rotary member which rotates with an input shaft of a non-stage transmission includes recessed parts 53 recessed from an outer surface to an inner surface. The recessed parts 53 are provided arranged in a circumferential direction of the casing 52A. The recessed part 53 has: a pair of first side surfaces 55 extending in the circumferential direction; a pair of second side surfaces 56 located adjacent to the first side surfaces 55; and a bottom surface 57 connected to the first side surfaces 55 and the second side surfaces 56. In the recessed part 53, a first angle formed between the bottom surface 57 and the first side surface 55 is larger than a second angle between the bottom surface 57 and the second side surface 56.SELECTED DRAWING: Figure 2 【課題】加工後の回転部材の凹部に大きな内部応力が残存することがある。内部応力が残存していると、回転部材が破損するおそれがある。【解決手段】無段変速機の入力軸と共に回転する回転部材としてのケーシング５２Ａは、外面から内面へと窪んでいる凹部５３を複数備えている。凹部５３は、ケーシング５２Ａの周方向に並んで設けられている。凹部５３は、周方向に延びる一対の第１側面５５と、第１側面５５と隣り合う一対の第２側面５６と、第１側面５５及び第２側面５６に繋がっている底面５７とを有している。凹部５３において、底面５７と第１側面５５とのなす第１角度は、底面５７と第２側面５６とのなす第２角度よりも大きくなっている。【選択図】図２