| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission mechanism which is excellent in the assembling workability of a B-rib belt while suppressing the enlargement and a weight increase of a pulley, and a belt assembling method.SOLUTION: A belt transmission mechanism comprises an annular lock part 27 which locks a V-rib belt 31 from the inside when assembling the V-rib belt 31 between pulleys to a side face 21b of an oil pump pulley 21, and is fit into a first groove part 33A of the V-rib belt 31 at a cylindrical peripheral face of a tip. When assembling the V-rib belt 31, the first groove part 33A of the V-rib belt 31 is locked to the annular lock part 27, and wound to the oil pump pulley 21 and a crank pulley 11, the clamp pulley 11 is rotated, and the V-rib belt 31 is easily assembled. A protrusion amount of an attachment guide part 25 becomes small, the arrangement of the oil pump pulley 21 becomes easy, and the assembling workability of the V-rib belt 31 is improved.SELECTED DRAWING: Figure 4 |
