IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0167110
(2005-06-28)
|
등록번호 |
US-7618326
(2009-11-27)
|
우선권정보 |
FR-04 07091(2004-06-28) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
3 |
초록
In the invention, a coupling device for interconnecting two substantially constant velocity systems or shafts (40, 41) includes two parallel plates (11, 12) united in their central region and forming a single part (10).
대표청구항
▼
What is claimed is: 1. A coupling device interconnecting two substantially constant velocity systems or shafts, the device comprising: two parallel plates each having a central region and at least two arms extending from the central region; a cylindrical hub homogenously uniting the plates as a one
What is claimed is: 1. A coupling device interconnecting two substantially constant velocity systems or shafts, the device comprising: two parallel plates each having a central region and at least two arms extending from the central region; a cylindrical hub homogenously uniting the plates as a one-piece homogenous construction therewith, wherein the plates are offset angularly about an axial centerline extending orthogonally through centers of the plates, and wherein each plate presents a first cross-sectional thickness in a first region adjacent the hub, a second cross-sectional thickness in a second region furthest from the hub, and a third cross-sectional thickness in third region extending between the first and second regions, the third thickness being less than the first thickness and less than the second thickness. 2. The device according to claim 1, wherein the hub presents a first inside diameter at two axial ends of said hub, and presents, in a central or middle portion of said hub, a second inside diameter that is smaller than the first inside diameter. 3. The device according to claim 1, wherein the center of the hub is pierced by an orifice or passage extending along said axial centerline and presenting a diameter that decreases from an axial end position to a middle position, the passage thus presenting in succession a converging portion followed by a diverging portion. 4. The device according to claim 1, wherein said at least two arms are three identical arms spaced apart at 120° intervals about said axial centerline. 5. The device according to claim 1, wherein the thickness of each plate varies continuously in regions lying between the first region and the third region. 6. The device according to claim 1, wherein each arm is pierced by at least one orifice or bore at least in said second region. 7. The device according to claim 1, wherein each plate presents an outline in the form of a curvilinear isosceles triangle, the plates being offset by 60° in rotation about the axial centerline. 8. The device according to claim 1, wherein a part forming at least one of the plates, the sleeve and the hub, is made of metal. 9. The device according to claim 8, wherein a part forming at least one of the plates, the hub and the sleeve is made of titanium, of steel, or of aluminum alloy. 10. The device according to claim 1, wherein a part forming at least one of the plates, the hub and the sleeve, is made of composite material. 11. The device according to claim 1, made by molding. 12. The device according to claim 1, wherein the hub has an hourglass-shaped orifice extending centrally therethrough, the orifice having entry and exit diameters that are each greater than a middle diameter thereof. 13. The device according to claim 1, wherein the hub has a maximum thickness at a midplane perpendicular to the axial centerline, said midplane being equidistant between planes passing through said plates. 14. The device according to claim 1, wherein said arms are elastically deformable and are configured to deform independently of each other. 15. A coupling device interconnecting two shafts transmitting power between a rotor of a rotary wing aircraft and a rotor drive motor, the device comprising: two parallel plates each having a central region and three identical arms spaced apart from one another at 120° intervals about an axial centerline extending orthogonally through centers of the plates, the arms of one of the plates are offset angularly by 60°, about the axial centerline, from the arms of another of said plates; a cylindrical hub homogenously uniting the plates as a one-piece construction therewith, and having an hourglass-shaped orifice extending centrally therethrough, the orifice having entry and exit diameters that are each greater than a middle diameter thereof, wherein each arm presents a first thickness in a first region adjacent to the hub, a second thickness in a second region furthest from the hub, and a third thickness in third region extending between the first and second regions, the third thickness being less than the first thickness and less than the second thickness in a direction parallel to the axial centerline. 16. The device according to claim 15, wherein the thickness of each plate varies continuously in the regions lying between the first region and the third region. 17. The device according to claim 15, wherein each plate is pierced by at least one orifice or bore at least in the second region region.
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