Yamaha Hatsudoki Kabushiki Kaisha

Masaru Oosuga

Yousuke Ishida

A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.

Belt-type continuous stepless speed changer

A belt-type continuously variable transmission () includes a primary sheave () having a pair of first clamp surfaces (), a secondary sheave () having a pair of second clamp surfaces (), and a belt () endlessly wound between both the sheaves (). The belt () has contact surfaces () clamped between the first clamp surfaces () and between the second clamp surfaces (). Powder () having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces () of the primary sheave (), the second clamp surfaces () of the secondary sheave (), and the contact surfaces () of the belt ().

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Shizuoka, Japan

Masaru Oosuga