Damper device

Patent metadata

Field	Value
Publication number	US-10570988-B2
Application number	US-201816210571-A
Country	US
Kind code	B2
Filing date	Dec 5, 2018
Priority date	Dec 7, 2017
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

According to one embodiment, a damper device includes a rotator, a first oscillator, a second oscillator, and two rollers, for example. The rotator is provided with a first opening. The second oscillator includes two guide surfaces recessed in a direction closer to a first center of rotation and a transmitting part capable of moving along the first opening. The two rollers each include a ring supported by the first oscillator and a shaft extending along a second center of rotation inside the ring and rotatably supported by the ring. The shaft comes into contact with a corresponding one of the two guide surfaces of the second oscillator pushed outward in the radial direction by centrifugal force, rolls along the corresponding one of the two guide surfaces by oscillation of the first oscillator, and is pushed by the corresponding one of the two guide surfaces in the circumferential direction.

First claim

What is claimed is:

1. A damper device comprising:
a rotator capable of rotating about a first center of rotation and provided with at least one first opening;
a first oscillator capable of oscillating about the first center of rotation with respect to the rotator;
at least one second oscillator including two guide surfaces recessed in a direction toward the first center of rotation and at least one transmitting part capable of being supported by an edge of the at least one first opening in a circumferential direction of the first center of rotation and capable of moving along the at least one first opening, the at least one second oscillator capable of oscillating in a radial direction of the first center of rotation with respect to the rotator; and
two rollers each including a ring supported by the first oscillator and a shaft extending along a second center of rotation inside the ring and supported by the ring rotatably about the second center of rotation with respect to the first oscillator, the shaft coming into contact with a corresponding one of the two guide surfaces of the at least one second oscillator pushed outward in the radial direction of the first center of rotation by centrifugal force generated by rotation of the rotator, rolling along the corresponding one of the two guide surfaces by oscillation of the first oscillator with respect to the rotator, and being pushed by the corresponding one of the two guide surfaces in the circumferential direction of the first center of rotation.

2. The damper device according to claim 1 , wherein the shaft has a largest outside diameter that is smaller than a largest outside diameter of the ring.

3. The damper device according to claim 1 , wherein
the at least one second oscillator includes two mass members capable of integrally oscillating with respect to the rotator in the radial direction of the first center of rotation,
the first oscillator is positioned between the two mass members,
the shaft has two first surfaces facing an axial direction of the second center of rotation, and
the two mass members each have a surface facing a corresponding one of the two first surfaces in the axial direction of the second center of rotation.

4. The damper device according to claim 3 , wherein
the two mass members each include a first member having the two guide surfaces and a second member having the surface,
one of the first member and the second member is provided with an opening, and
the other of the first member and the second member has a coupler fitted into the opening while being elastically deformed.

Assignees

• Aisin Aw Co
• Aisin Seiki

Inventors

• Nasu Tsuyoshi
• Hayashi Daisuke
• Oi Yoichi
• Sakamoto Takao

Classifications

• F16F15/1208

  Bearing arrangements · CPC title

• F16F15/1407 Primary

  the rotation being limited with respect to the driving means · CPC title

• F16F2222/08

  Inertia · CPC title

• F16F15/13185

  Bolting arrangements (F16F15/13171 takes precedence) · CPC title

• F16F15/13407

  Radially mounted springs · CPC title