Vibration-isolating device
AssigneeToyo Tire Corporation
InventorsYuga Yokoyama, Takahiro Nakagaki
Life of this patent
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Abstract
Provided is a vibration-isolating device in which a distance between a first outer surface and a first inner surface (i.e., the width of a first hollow portion) at the center in the axial direction is 0.5 to 2.0 mm, and a distance between a second outer surface and a second inner surface (i.e., the width of a second hollow portion) at the center in the axial direction is 2.0 to 5.0 mm. The shapes of the first outer surface and the first inner surface are set such that the first outer surface and the first inner surface do not come into contact with each other within a range in which a prying angle is 17 degrees or less.
Claims4
A vibration-isolating device comprising:
- a shaft-shaped inner member extending along an axis line;
- a tubular outer member surrounding an outer peripheral side of the inner member;
- and
- a vibration-isolating base made of an elastic body, the vibration-isolating base connecting an outer peripheral surface of the inner member and an inner peripheral surface of the outer member,
- wherein
- the vibration-isolating base has:
- a first hollow portion that extends through the vibration-isolating base in an axial direction;
- a second hollow portion that is located on an opposite side from the first hollow portion in a radial direction with the inner member interposed therebetween and that extends through the vibration-isolating base in the axial direction;
- a first outer surface that forms the outer member side of an inner wall of the first hollow portion;
- a first inner surface that forms the inner member side of the inner wall of the first hollow portion, wherein a distance between the first inner surface and the first outer surface at a center in the axial direction is set to 0.5 to 2.0 mm;
- a second outer surface that forms the outer member side of an inner wall of the second hollow portion;
- and
- a second inner surface that forms the inner member side of the inner wall of the second hollow portion, wherein a distance between the second inner surface and the second outer surface at the center in the axial direction is set to 2.0 to 5.0 mm, and
- shapes of the first outer surface and the first inner surface are set such that when the vibration-isolating base is subjected to prying deformation by tilting the inner member with respect to the outer member in a direction in which the first hollow portion and the second hollow portion are located, the first outer surface and the first inner surface do not come into contact with each other within a range in which a prying angle of the axis line of the inner member with respect to the axial direction of the outer member is 17 degrees or less.
Dependencies are inferred from the claim text.