| 摘要 |
PURPOSE:To prevent the bonded part or the like between a torsion rubber and an inertia ring from being eroded and damaged by sand, by forming projections on both surfaces of a damper plate in the vicinity of the inner peripheral surface of the torsion rubber, for sand guard. CONSTITUTION:A torsion rubber 3 having both outer surfaces to which an inertia ring 2 is bonded, is bonded to both surface of the outer peripheral edge part of a circular damper plate 1 fitted onto the rotary shaft of a crankshaft or the like. Further, Projections 4 for sand guard which are formed on both surfaces of the damper plate 1 in the vicinity of the inner periphral surface of the above- mentioned torsion rubber 3, are integrally incorporated with the latter by being extended from the inner peripheral surface of the torsion rubber 3, and therefore, are bonded to both surfaces of the damper plate 1, having an angle shape with its apex pointed outward with respect to each other. |
