CHAIN TENSIONER STRUCTURE OF CHAIN POWER TRANSMISSION

PROBLEM TO BE SOLVED: To provide a chain tensioner structure for eliminating a looseness of a chain by a simple constitution, restricting a swing of the chain and restricting friction loss.SOLUTION: There is provided a chain tensioner structure of a chain power transmission mechanism (70) for transm...

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Bibliographische Detailangaben
Hauptverfasser: KAWAKAMI TAKURO, SUGIURA HIROYUKI, YAMASHIRO HAYATO, MIYAMURA TAKUYA, WAKASA HIDETOMO
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a chain tensioner structure for eliminating a looseness of a chain by a simple constitution, restricting a swing of the chain and restricting friction loss.SOLUTION: There is provided a chain tensioner structure of a chain power transmission mechanism (70) for transmitting power while a drive sprocket (72) presses from outside of a chain loop and engages with it. There is provided a tensioner member (81) having integrally an input slide contacting part (P) and an output slide contacting part (Q) each of which slides and contacts with one side chain part (71r) and the other side opposing chain part (71f) pressed against and engaged with the drive sprocket (72) of a chain (71). The tensioner member (81) is operated such that an action of a relaxed side chain (71rs) acts against the input slide contacting part (P) slide contacting with a relaxed side chain (71rs) downstream side of the drive sprocket (72) of one side chain part (71r) and moves to cause the output slide contacting part (Q) to press against the other side chain part (71f) to apply tension force to the chain (71).