DEVICE FOR AUTOMATICALLY CHANGING SPEED WITH STAGES BY TAPERING SPIRAL PART OF SQUARE SPLINE SHAFT AND TRANSMISSION PART ON DRIVEN GEAR SIDE, AND TRANSMITTING POWER BY ROLLER

摘要

PURPOSE:To enable the captioned device to be smoothly operated by providing an one-way clutch between a shaft and spur gears. CONSTITUTION:An one-way clutch is interposed between a shaft 4 and spur gears 10-12. Hereby, there is produced no lap of the number of revolutions upon changing over engagement between spur gears 7-9 and the spur gears 10- 12, enabling the captioned device to be smoothly operated.