| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sprocket for driving a chain capable of reducing costs for replacing components of a buffer member to suppress noise by being kept into contact with the chain while easing mechanical impact shock, in driving the chain.SOLUTION: A sprocket 11 for driving a chain includes a rotating member 21 provided with a plurality of tooth portions 24a engageable with the chain 12 at equal intervals on an outer peripheral portion 28 in the circumferential direction, and a plurality of buffer members 31 mounted at least at one side in the tooth width direction of the tooth portions of the rotating member at intervals corresponding to circumferential pitches L of the tooth portions in the circumferential direction along a pitch cycle Q of the tooth portion in a state that they can be kept into contact with an inner plate 13 and an outer plate 14 of the chain. In removing and replacing the buffer members 31 from the rotating member, only the buffer member which is, for example, deteriorated and should be replaced among the plurality of mounted buffer members can be replaced.</p> |
