| 摘要 |
PROBLEM TO BE SOLVED: To provide a damper pulley capable of suppressing progress of abrasion.SOLUTION: A damper pulley includes: a pulley 10 which has an internal space and can be rotated with power supplied from the outside; a hub which is arranged in the internal space at least a part, and is rotatable, and can output the power to the outside; and a clutch spring 60 which is formed in a shape of a coil, is arranged in the internal space in a state that an outer peripheral surface is brought into contact with an inner peripheral surface of the pulley 10, and is partially connected to the hub, and is twisted in accordance with rotation of the pulley 10, and thereby can be switched between a state of being fixed to the inner peripheral surface of the pulley 10 and capable of transmitting the power of the pulley 10 to the hub and a state of being slidable to the inner peripheral surface of the pulley 10 and incapable of transmitting the power of the pulley 10 to the hub. Flat portions 11a and 60a and recessed portions 11b and 60b recessed with respect to the flat portions 11a and 60a so as to retain a lubricant are formed on the inner peripheral surface of the pulley 10 and the outer peripheral surface of the clutch spring 60.SELECTED DRAWING: Figure 3 |
