Dynamic damper for hollow drive shaft
First Claim
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1. A dynamic damper for a hollow drive shaft, comprising:
- a damper mass member disposed in a hollow bore of said drive shaft, such that said damper mass member is coaxial with said drive shaft with a predetermined clearance being provided between said damper mass member and an inner circumferential surface of said drive shaft; and
a pair of elastic support members respectively fixed to axially opposite ends of said damper mass member, said support members connecting said damper mass member to said drive shaft, thereby elastically supporting said damper mass member, each of said elastic support members including a tubular portion which extends from an outer periphery of a corresponding one of said axially opposite ends of said damper mass member in an axially outward direction of said damper mass member while at the same time expanding radially outwardly of said damper mass member, so that said tubular portion has a truncated conical shape.
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Abstract
A dynamic damper for a hollow drive shaft, including a damper mass member disposed in a hollow bore of the drive shaft, such that the damper mass member is coaxial with the drive shaft with a predetermined clearance being provided between the damper mass member and an inner circumferential surface of the drive shaft; and a pair of elastic support members respectively fixed to axially opposite ends of the damper mass member, the support members connecting the damper mass member to the drive shaft, thereby elastically supporting the damper mass member.
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Citations
11 Claims
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1. A dynamic damper for a hollow drive shaft, comprising:
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a damper mass member disposed in a hollow bore of said drive shaft, such that said damper mass member is coaxial with said drive shaft with a predetermined clearance being provided between said damper mass member and an inner circumferential surface of said drive shaft; and a pair of elastic support members respectively fixed to axially opposite ends of said damper mass member, said support members connecting said damper mass member to said drive shaft, thereby elastically supporting said damper mass member, each of said elastic support members including a tubular portion which extends from an outer periphery of a corresponding one of said axially opposite ends of said damper mass member in an axially outward direction of said damper mass member while at the same time expanding radially outwardly of said damper mass member, so that said tubular portion has a truncated conical shape. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dynamic damper for a hollow drive shaft, comprising:
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a damper mass member disposed in a hollow bore of said drive shaft, such that said damper mass member is coaxial with said drive shaft with a predetermined clearance being provided between said damper mass member and an inner circumferential surface of said drive shaft; and a pair of elastic support members respectively fixed to axially opposite ends of said damper mass member, said support members connecting said damper mass to said drive shaft, thereby elastically supporting said damper mass member, each of said elastic support members including a first tubular portion which extends from an outer periphery of a corresponding one of said axially opposite ends of said damper mass member in an axially outward direction of said damper mass member while at the same time expanding radially outwardly of said damper mass member, so that said first tubular portion has a truncated conical shape, said each support member further including a second tubular portion which extends from an axial end of said first tubular portion in said axially outward direction so that said second tubular portion has a cylindrical shape. - View Dependent Claims (9)
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10. A dynamic damper for a hollow drive shaft, comprising:
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a damper mass member disposed in a hollow bore of said drive shaft, such that said damper mass member is coaxial with said drive shaft with a predetermined clearance being provided between said damper mass member and an inner circumferential surface of said drive shaft, said damper mass member including an axially intermediate portion having a first diameter and a pair of axially opposite end portions each of which has a second diameter smaller than said first diameter of said intermediate portion; and a pair of elastic support members each of which is provided between a corresponding one of said axially opposite end portions and said inner surface of said drive shaft so as to connect said damper mass member to said drive shaft and thereby elastically support said damper mass member, said each support member having a truncated conical tubular shape and being subject to compression and tension between said corresponding one end portion of said damper mass member and said inner surface of said drive shaft. - View Dependent Claims (11)
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Specification