Damper device

Patent metadata

Field	Value
Publication number	US-9243670-B2
Application number	US-201414261046-A
Country	US
Kind code	B2
Filing date	Apr 24, 2014
Priority date	Apr 25, 2013
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

A damper device includes: a pair of first plates axially separated from each other along a rotation axis and rotatable integrally with each other around the axis in a state where the first plates intersect the axis; a second plate including a portion positioned between the first plates, having an opening, and rotatable around the axis in a state where the second plate intersects the axis; an elastic member between the first and second plates, and elastically deformed a circumferential direction of the axis; and a third plate having a first portion positioned on an inner side of the opening and coupled to the first plates in a state where the first portion is between the first plates, and a second portion positioned on an outer side of the opening, and rotatable around the axis in a state where the third plate intersects the axis.

First claim

What is claimed is:

1. A damper device comprising:
a pair of first plates that are provided at positions separated from each other in an axial direction of a rotation axis and that are configured to be rotatable integrally with each other around the rotation axis in a state where the pair of first plates intersect the rotation axis;
a second plate that includes a portion positioned between the pair of first plates, that has an opening, and that is configured to be rotatable around the rotation axis in a state where the second plate intersects the rotation axis;
an elastic member that is provided between the first plate and the second plate, and that is elastically deformed at least in a circumferential direction of the rotation axis;
a third plate that has a first portion which is positioned on an inner side of the opening of the second plate and which is coupled to the pair of first plates in a state where the first portion is interposed between the pair of first plates from both sides in the axial direction, and a second portion which is positioned on an outer side of the opening of the second plate, and that is configured to be rotatable around the rotation axis in a state where the third plate intersects the rotation axis;
a torque limiter that is provided in the second plate;
wherein the first portion and an inner side end surface of the opening are configured to be capable of coming into contact with each other;
wherein when the first portion and the end surface come into contact with each other, the first plate and the third plate, and the second plate are configured so that a range of relative rotations around the rotation axis is limited; and
wherein the elastic member and the torque limiter are respectively provided on an inner side and an outer side in the radial direction of the rotation axis with respect to the first portion of the third plate.

2. The damper device according to claim 1 ,
wherein the end surface includes an opposing region which opposes the first portion in the circumferential direction, and
wherein the first portion is provided to be positioned between one side end portion and the other side end portion in the axial direction of the opposing region.

3. The damper device according to claim 1 ,
wherein at least one of the pair of first plates and a portion of the second plate positioned between the pair of first plates are configured to be mutually and relatively rotatable around the rotation axis via a bearing.

4. The damper device according to claim 1 ,
wherein the second portion is formed in an annular shape,
wherein the first portion is provided to protrude inward from the second portion in a radial direction of the rotation axis, and
wherein a first reinforcing portion is provided in a further outer side portion of the second portion in the radial direction than the first portion.

5. The damper device according to claim 4 ,
wherein the first reinforcing portion extends along the circumferential direction so as to straddle a gap formed between an end portion in the circumferential direction of the first portion and the second portion.

6. The damper device according to claim 1 ,
wherein the second portion is formed in an annular shape,
wherein the first portion is provided to protrude inward from the second portion in a radial direction of the rotation axis, and
wherein a second reinforcing portion is provided in an inner side end portion of the second portion in the radial direction.

7. The damper device according to claim 1 ,
wherein the end surface includes an opposing region which opposes the first portion in the circumferential direction, and
wherein the first portion is provided to be positioned in a substantially center between one side end portion and the other side end portion in the axial direction of the opposing region.

8. The damper device according to claim 1 ,
wherein four openings are provided in the second plate and the first portion is provided corresponding to the opening.

9. A damper device comprising:
a pair of first plates that are provided at positions separated from each other in an axial direction of a rotation axis and that are configured to be rotatable integrally with each other around the rotation axis in a state where the pair of first plates intersect the rotation axis;
a second plate that includes a portion positioned between the pair of first plates, that has an opening, and that is configured to be rotatable around the rotation axis in a state where the second plate intersects the rotation axis;
an elastic member that is provided between the first plate and the second plate, and that is elastically deformed at least in a circumferential direction of the rotation axis;
a third plate that has a first portion which is positioned on an inner side of the opening of the second plate and which is coupled to the pair of first plates in a state where the first portion is interposed between the pair of first plates from both sides in the axial direction, and a second portion which is positioned on an outer side of the opening of the second plate, and that is configured to be rotatable around the rotation axis in a state where the third plate intersects the rotation axis;
wherein the first portion and an inner side end surface of the opening are configured to be capable of coming into contact with each other;
wherein when the first portion and the end surface come into contact with each other, the first plate and the third plate, and the second plate are configured so that a range of relative rotations around the rotation axis is limited; and
wherein a third reinforcing portion is provided in a portion of the second plate which corresponds to the first portion.

Assignees

• Aisin Seiki

Inventors

• Nakagaito Satoshi
• Saeki Tomohiro
• Ebata Masaru
• Sekine Tsutomu

Classifications

• F16F15/1395

  characterised by main friction means acting radially outside the circumferential lines of action of the elastic members · CPC title

• F16D3/12 Primary

  specially adapted for accumulation of energy to absorb shocks or vibration (by making use of fluid elements F16D3/80) · CPC title

• F16F15/1397 Primary

  Overload protection, i.e. means for limiting torque · CPC title

• F16F15/1315

  Multi-part primary or secondary masses, e.g. assembled from pieces of sheet steel · CPC title