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US 10,895,830 B2Granted
Belt drive device capable of restricting damage of belt, image forming apparatus
AssigneeKYOCERA Document Solutions Inc.
InventorKohei Ishido
Life of this patent
Estimating the term…
Abstract
A belt drive device includes a first pulley, a second pulley, a first bulging portion, a belt, and a pressing portion. The first bulging portion is formed along an outer periphery of the second pulley to bulge outward in a radial direction of the second pulley at a center of the second pulley in an axial direction of the second pulley. The belt is stretched between the first pulley and the first bulging portion. The pressing portion presses an outer peripheral surface of the belt at a center of the belt in a width direction of the belt.
Claims5
A belt drive device comprising:
- a first pulley;
- a second pulley;
- a first bulging portion formed along an outer periphery of the second pulley to bulge outward in a radial direction of the second pulley at a center of the second pulley in an axial direction of the second pulley;
- a belt stretched between the first pulley and the first bulging portion;
- a pressing portion configured to press an outer peripheral surface of the belt at a center of the belt in a width direction of the belt;
- and
- a third pulley provided in a state of being in contact with the outer peripheral surface of the belt, wherein
- the pressing portion is a second bulging portion formed along an outer periphery of the third pulley to bulge outward in a radial direction of the third pulley at a center of the third pulley in an axial direction thereof, and
- a curvature of the second bulging portion in the axial direction of the third pulley is larger than a curvature of the first bulging portion in the axial direction of the second pulley.
6 more elements
Dependencies are inferred from the claim text.