Torsion damping device with springs and tilting seats
US-9482306-B2 · Nov 1, 2016 · US
Damper device
US8932142B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8932142-B2 |
| Application number | US-201213367641-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 7, 2012 |
| Priority date | Feb 15, 2011 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A damper device including an input element to which power from a motor is transmitted; a first elastic body to which power is transmitted from the input element; a first intermediate element to which power is transmitted from the first elastic body; a second elastic body to which power is transmitted from the first intermediate element; a second intermediate element to which power is transmitted from the second elastic body; a third elastic body to which power is transmitted from the second intermediate element; and an output element to which power is transmitted from the third elastic body. The first and second elastic bodies are coil springs, and the third elastic body is an arc spring that is arranged radially inward of the first and second elastic bodies.
First claim
Opening claim text (preview).
What is claimed is: 1. A damper device comprising: an input element configured to transmit power from a motor to a first elastic body; the first elastic body configured to transmit power from the input element to a first intermediate element; the first intermediate element configured to transmit power from the first elastic body to a second elastic body; the second elastic body configured to transmit power from the first intermediate element to a second intermediate element; the second intermediate element configured to transmit power from the second elastic body to a third elastic body; the third elastic body configured to transmit power from the second intermediate element to an output element; and the output element to which power is transmitted from the third elastic body, wherein the first and second elastic bodies are straight coil springs, and the third elastic body is an arc spring that is arranged radially inward of the first and second elastic bodies, and the first intermediate element is formed as an annular member, an entire inner surface of the annular member supporting an outer surface of the first elastic body and an outer surface of the second elastic body, the inner surface of the annular member being formed as an annular shape. 2. The damper device according to claim 1 , wherein the input element has a contact portion that contacts with one end of the first elastic body, the first intermediate element has a contact portion that is arranged between the other end of the first elastic body and one end of the second elastic body adjacent to the first elastic body and that contacts with both, the second intermediate element has a contact portion that contacts with the other end of the second elastic body and a contact portion that contacts with one end of the third elastic body, and the output element has a contact portion that contacts with the other end of the third elastic body. 3. The damper device according to claim 2 , wherein a stiffness of the first elastic body is higher than stiffnesses of the second and third elastic bodies. 4. The damper device according to claim 3 , wherein the input element is connected via a lock-up clutch to an input member coupled to the motor, and the output element is coupled to an input shaft of a transmission. 5. The damper device according to claim 1 , wherein a stiffness of the first elastic body is higher than stiffnesses of the second and third elastic bodies. 6. The damper device according to claim 1 , wherein the input element is connected via a lock-up clutch to an input member coupled to the motor, and the output element is coupled to an input shaft of a transmission. 7. The damper device according to claim 1 , wherein the arc spring is configured to extend about 45 degrees or more of an inner circumference of the damper device. 8. The damper device according to claim 1 , wherein the arc spring is configured to extend about 90 degrees or more of an inner circumference of the damper device. 9. A damper device comprising: an input element configured to transmit power from a motor to a first elastic body; the first elastic body configured to transmit power from the input element to a first intermediate element; the first intermediate element configured to transmit power from the first elastic body to a second elastic body; the second elastic body configured to transmit power from the first intermediate element to a second intermediate element; the second intermediate element configured to transmit power from the second elastic body to a third elastic body; the third elastic body configured to transmit power from the second intermediate element to an output element; and the output element to which power is transmitted from the third elastic body, wherein the first and second elastic bodies are straight coil springs, and the third elastic body is an arc spring that is arranged radially inward of the first and second elastic bodies, and the first intermediate element covers the first elastic body and the second elastic body, the first intermediate element has a first cover member and a second cover member, the first cover member covering a first side part of the first and the second elastic bodies, and the second cover member covering a second side part of the first and the second elastic bodies, the first side part being substantially opposite from the second side part with respect to the first and the second elastic bodies in an axial direction of the damper device. 10. The damper device according to claim 9 , wherein the input element has a contact portion that contacts with one end of the first elastic body, the first intermediate element has a contact portion that is arranged between the other end of the first elastic body and one end of the second elastic body adjacent to the first elastic body and that contacts with both, the second intermediate element has a contact portion that contacts with the other end of the second elastic body and a contact portion that contacts with one end of the third elastic body, and the output element has a contact portion that contacts with the other end of the third elastic body. 11. The damper device according to claim 10 , wherein a stiffness of the first elastic body is higher than stiffnesses of the second and third elastic bodies. 12. The damper device according to claim 11 , wherein the input element is connected via a lock-up clutch to an input member coupled to the motor, and the output element is coupled to an input shaft of a transmission. 13. The damper device according to claim 9 , wherein a stiffness of the first elastic body is higher than stiffnesses of the second and third elastic bodies. 14. The damper device according to claim 9 , wherein the input element is connected via a lock-up clutch to an input member coupled to the motor, and the output element is coupled to an input shaft of a transmission. 15. The damper device according to claim 9 , wherein the arc spring is configured to extend about 45 degrees or more of an inner circumference of the damper device. 16. The damper device according to claim 9 , wherein the arc spring is configured to extend about 90 degrees or more of an inner circumference of the damper device. 17. A damper device comprising: an input element configured to transmit power from a motor to a first elastic body; the first elastic body configured to transmit power from the input element to a first intermediate element; the first intermediate element configured to transmit power from the first elastic body to a second elastic body; the second elastic body configured to transmit power from the first intermediate element to a second intermediate element; the second intermediate element configured to transmit power from the second elastic body to a third elastic body; the third elastic body configured to transmit power from the second intermediate element to an output element; and the output element to which power is transmitted from the third elastic body, wherein the first and second elastic bodies are straight coil springs, and the third elastic body is an arc spring that is arranged radially inward of the first and second elastic bodies, and the first intermediate element covers the first elastic body and the second elastic body, the first intermediate element has a first cover member and a second cover member, the first cover member extending substantially in parallel with an axial direction of the damper device and covering a first side part of the first and the second elast
Assignees
Inventors
Classifications
with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) · CPC title
- F16D3/66Primary
the elements being metallic, e.g. in the form of coils · CPC title
Single disk type lock-up clutch, i.e. using a single disc engaged between friction members · CPC title
arranged in series · CPC title
two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8932142B2 cover?
- A damper device including an input element to which power from a motor is transmitted; a first elastic body to which power is transmitted from the input element; a first intermediate element to which power is transmitted from the first elastic body; a second elastic body to which power is transmitted from the first intermediate element; a second intermediate element to which power is transmitte…
- Who is the assignee on this patent?
- Takikawa Yoshihiro, Oi Yoichi, Aisin Aw Co
- What technology area does this patent fall under?
- Primary CPC classification F16D3/66. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).