Continuously variable transmission
The continuously variable transmission addresses wear issues by separating the ramp-side protruding piece from the housing surface during deceleration, ensuring reduced wear on the ramp plate and movable drive pulley.
WO2026154914A1PCT designated stage Publication Date: 2026-07-23FCC KK
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- FCC KK
- Filing Date
- 2025-12-22
- Publication Date
- 2026-07-23
AI Technical Summary
Technical Problem
Existing continuously variable transmissions for saddle-type vehicles face wear issues between the lamp plate and movable drive pulley due to direct contact during deceleration.
Method used
A continuously variable transmission design that separates the upstream side of the ramp-side protruding piece from the housing surface during deceleration, preventing direct contact and wear between the ramp plate and movable drive pulley.
Benefits of technology
The design effectively suppresses wear on the ramp plate and movable drive pulley, enhancing the longevity and reliability of the transmission components.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure JP2025044726_23072026_PF_FP_ABST
Abstract
A continuously variable transmission 100 comprises: a movable drive pulley 110 that approaches or separates from a fixed drive pulley 102; a ramp plate 130 that opposes the movable drive pulley 110 and rotates integrally with a crankshaft 90; and a weight 120 that can transmit rotational driving force from the movable drive pulley 110 to the ramp plate 130 during deceleration. The ramp plate 130 includes a ramp-side protruding piece 133 that can abut the weight 120. The movable drive pulley 110 includes an accommodation section 113 that accommodates the ramp-side protruding piece 133 and the weight 120. During deceleration, an upstream-side surface 133D of the ramp-side protruding piece is separated from an accommodation surface 116E of the accommodation section 113.
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