CHAIN OIL SUPPLY DEVICE AND METHOD FOR MANUFACTURING CHAIN OIL SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To achieve reduction of a manufacturing cost of a chain oil supply device by enabling oil supply holes to be easily worked, the oil supply holes being radially provided in a rotary body engaging with a chain.;SOLUTION: Shims 17a (17ai, 17ao), 17b (17bi, 17bo) and support plates 19a, 19b are provided via intermediate plates 15a, 15b on both side parts of a sprocket 11 engaging with a chain 1. Oil grooves 17r are formed by photo-etching in facing surfaces of the shims 17ai, 17ao and facing surfaces of the shims 17bi, 17bo. Oil passages 35a, 35b formed by the oil grooves 17r are present at positions corresponding to a tooth bottom u between tooth parts 11t of the sprocket 11. Oil supplied to an oil supply hole 13p of a support shaft 13 and continuous holes 13a, 13b drops onto a connection part of the chain 1 through the oil passages 35a, 35b in a such state that the oil passages are aligned with the continuous holes 13a, 13b.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT