Claims
- 1. A detachable close-tolerance connection unit for a component, comprising:
a fitting screw including a head, a shank, a threaded portion and a fitting portion, said shank including a rim element having an outer diameter; and a supporting ring including an opening and a narrowing element being located in said opening and having an inner diameter, the inner diameter of said narrowing element being less than the outer diameter of said rim element, said supporting ring being designed and arranged to be connectable to said fitting screw with elastic-plastic deformation to reach a pre-assembled position,
said narrowing element in the pre-assembled position being located in a portion of said opening facing said head of said fitting screw, said narrowing element in the pre-assembled position being associated with said rim element such that said supporting ring is rotatably and captively connected to said fitting screw, and said rim element in the pre-assembled position being located inside of said opening.
- 2. The connection unit of claim 1, wherein said opening has an inner diameter, said shank has an outer diameter and said threaded portion has an outer diameter, the inner diameter of said opening being more than the outer diameter of said shank and the outer diameter of said threaded portion.
- 3. The connection unit of claim 1, wherein said supporting ring has a first end facing away from said head of said fitting screw, said narrowing element being located at an axial distance with respect to said first end of said supporting ring.
- 4. The connection unit of claim 2, wherein said supporting ring has a first end facing away from said head of said fitting screw, said narrowing element being located at an axial distance with respect to said first end of said supporting ring.
- 5. The connection unit of claim 1, wherein said supporting ring has an axial height, said rim element being located at an axial distance with respect to said head of said fitting screw which is less than the axial height of said supporting ring.
- 6. The connection unit of claim 2, wherein said supporting ring has an axial height, said rim element being located at an axial distance with respect to said head of said fitting screw which is less than the axial height of said supporting ring.
- 7. The connection unit of claim 3, wherein said supporting ring has an axial height, said rim element being located at an axial distance with respect to said head of said fitting screw which is less than the axial height of said supporting ring.
- 8. The connection unit of claim 4, wherein said supporting ring has an axial height, said rim element being located at an axial distance with respect to said head of said fitting screw which is less than the axial height of said supporting ring.
- 9. The connection unit of claim 1, wherein said rim element is designed to extend about 360° of said fitting screw.
- 10. The connection unit of claim 1, wherein said narrowing element is designed to extend about 360° of said supporting ring.
- 11. The connection unit of claim 9, wherein said narrowing element is designed to extend about 360° of said supporting ring.
- 12. The connection unit of claim 1, wherein said wherein said supporting ring has an axial height and said fitting portion has an axial length, the axial length of said fitting portion being more than the axial height of said supporting ring.
- 13. The connection unit of claim 1, wherein said rim element includes conical surface portions.
- 14. The connection unit of claim 1, wherein said narrowing element includes conical surface portions.
- 15. The connection unit of claim 1, wherein said rim element and said narrowing element each include conical surface portions.
- 16. The connection unit of claim 1, further comprising a second rim element being located at said shank of said fitting screw and a second narrowing element being located at said opening of said supporting ring.
- 17. The connection unit of claim 1, wherein said rim element is designed to be elastic-plastically deformable.
- 18. The connection unit of claim 1, wherein said narrowing element is designed to be elastic-plastically deformable.
- 19. The connection unit of claim 1, wherein said rim element and said narrowing element are each designed to be elastic-plastically deformable.
- 20. A detachable fitting connection unit, comprising:
a fitting screw including a head, a shank having an outer diameter, a threaded portion having an outer diameter and a fitting portion having an outer diameter, said shank including a rim element having an outer diameter; and a supporting ring including an opening having an inner diameter and a narrowing element being located in said opening and having an inner diameter, the inner diameter of said opening being more than the outer diameter of said shank and the outer diameter of said threaded portion, the inner diameter of said narrowing element being less than the outer diameter of said rim element, said supporting ring being designed and arranged to be connectable to said fitting screw with elastic-plastic deformation to reach a pre-assembled position,
said narrowing element in the pre-assembled position being located in a portion of said opening facing said head of said fitting screw, said narrowing element in the pre-assembled position being associated with said rim element such that said supporting ring is rotatably and captively connected to said fitting screw, and said rim element in the pre-assembled position being located inside of said opening.
Priority Claims (1)
Number |
Date |
Country |
Kind |
101 49 017.8-12 |
Oct 2001 |
DE |
|
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to co-pending German Patent Application No. 101 49 017.8 entitled “Lösbares Verbindungselement für ein Bauteil, mit einer Schraube und einem Stützring”, filed Oct. 4, 2001.