Importance

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Abstract

A gear mechanism including a rotatably supported first gear, a second gear meshed with the first gear, the second gear rotatably supported around a second axis line and having a smaller conical angle than the first gear, a holder which supports the second gear in a rotatable manner with a bearing, and a shim for the second gear which is placed at a position between the holder and a gearbox and which can adjust a position of the second gear in the direction along the second axis line. The second gear shim includes a through hole in which the holder is located so that the holder penetrates the second gear shim, and a path which extends from an outer circumference edge of the second gear shim to the through hole, where the path allows the holder to pass in a direction crossing the second axis line.

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First Claim