| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuously variable transmission for a delivery scooter, easily and inexpensively achieving safety during driving. SOLUTION: This continuously variable transmission 1 for the delivery scooter includes: a drive pulley 3 attached to the crankshaft 2 of an engine; a driven pulley 5 attached to a drive shaft 4 coupled to the axle of a rear wheel; and a V-belt 6 wound between the drive pulley 3 and the driven pulley 5. The drive pulley 3 is configured to increase the supporting radius D1 of the V-belt 6 with an increase in the rotational speed of the crankshaft 2. The driven pulley 5 is configured to decrease the supporting radius D2 of the V-belt 6 in conjunction with the enlargement of the diameter of the drive pulley 3. The drive shaft 4 is provided with a regulation means 9 which regulates the movement of a driven pulley moving disk 5a in a direction separating from a driven pulley fixing disk 5b before the driven pulley 5 minimizes the supporting radius D2 of the V-belt 6. COPYRIGHT: (C)2009,JPO&INPIT
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