Claims
- 1. A play-free and centering tube coupling for nonpositively connecting a tube receptacle to a spindle shank of a textile machine, said tube coupling comprising:a body; a thrust piece arranged axially moveably within said body, said thrust piece having at least one face; an end piece fixedly connected to said body, said end piece having at least one face; at least three driving elements being arranged centrically and adapted to bear against an inner wall of the tube receptacle, wherein said driving elements are arranged so as to be movable predominantly radially between said body and said thrust piece; a guide slope in the form of a conical collar arranged on said thrust piece being arranged to contact said at least three driving elements; and detaining centrifugal elements being positioned between said thrust piece and said end piece and being displaceable predominantly in a radial direction, wherein at least one of said at least one faces of said thrust piece and of said end piece is arranged as an additional guide slope positioned to contact said detaining centrifugal elements.
- 2. The tube coupling according to claim 1, wherein a difference in dimension between an outer radius of said body and an outer radius of a middle cylindrical part of said thrust piece has at least a size of a diameter of a spherical driving element.
- 3. The tube coupling according to claim 1, wherein said driving elements further comprise cap-shaped parts attached to said body, and wherein a difference in dimension between an outer radius of said body and an outer radius of a middle cylindrical part of said thrust piece has at least the size of an overall dimension of a spherical part of one of said driving elements including said attached cap-shaped part of said one driving element.
- 4. The tube coupling according to claim 1, wherein said at least three driving elements are one of spherical elements and caps with inner balls.
- 5. The tube coupling according to claim 4, wherein said caps are equipped with a stop collar.
- 6. The tube coupling according to claim 1, wherein said body contains receiving receptacles arranged in a radial configuration to receive said at least three driving elements.
- 7. The tube coupling according to claim 6, wherein said receiving receptacles comprise one of cylindrical bores as a prismatic perforation and cylindrical bores with an outer spherical narrowing.
- 8. The tube coupling according to claim 6, wherein an elastic band is arranged on an outer circumference of said body to cover said receiving receptacles, whereby said driving elements are retained in an initial position when the spindle shank is at a standstill.
- 9. The tube coupling according to claim 1, wherein each at least one face of said thrust piece and each at least one face of said end piece are positioned to form additional guide slopes arranged to retain said centrifugal detaining elements, and wherein said guide slope and said additional guide slopes have selectable inclinations relative to a horizontal plane.
- 10. The tube coupling according to claim 9, wherein the guide slope for said at least three driving elements on said thrust piece has a selectable angle.
- 11. The tube coupling according to claim 10, wherein the guide slope of said thrust piece has an angle of 40° relative to the horizontal plane.
- 12. The tube coupling according to claim 1, wherein the at least one face of said end piece is arranged as an additional guide slope, and the guide slope of said thrust piece and said additional guide slope each have a selectable angle.
- 13. The tube coupling according to claim 12, wherein the guide slope of thrust piece and said additional guide slope each have an angle of 10° relative to a horizontal plane.
- 14. The tube coupling according to claim 1, wherein said detaining centrifugal elements are one of (1) spherical rollers and (2) cylindrical rollers positionable to fix said thrust piece in a working position.
- 15. The tube coupling according to claim 1, wherein at least three radially arranged guide tracks are formed between said thrust piece and said end piece for said detaining centrifugal elements arranged between said end piece and said thrust piece.
- 16. The tube coupling according to claim 1, wherein said thrust piece is equipped with a sliding bush positioned to ensure axial displaceability of said thrust piece on the spindle shank.
- 17. The tube coupling according to claim 1, wherein said body further comprises an assembly collar for fixing said end piece in said body.
- 18. The tube coupling according to claim 1, further comprising a connector element structured and arranged between the said body and said end piece to produce a positive connection after conclusion of assembly of the tube coupling.
- 19. The tube coupling according to claim 1, further comprising a compression spring ensuring a lowest possible position of said thrust piece in said body is arranged between said end piece and said thrust piece.
- 20. The tube coupling according to claim 1, said body further comprising threaded bores for nonpositively fixing said tube coupling on the spindle shank.
- 21. The tube coupling according to claim 1, in combination with a spindle shank, and a tube receptacle, wherein at least one clamping piece and at least one tube coupling is arranged for a nonpositive and centric fixing of said tube receptacle on said spindle shank.
- 22. The tube coupling according to claim 1, in combination with a spindle shank, and a tube receptacle, wherein at least two tube couplings are arranged for a nonpositive and centric fixing of said tube receptacle on said spindle shank.
- 23. A play-free and centering tube coupling adapted for nonpositively connecting a tube receptacle to a spindle shank of a textile machine, said tube coupling comprising:a cylindrical body having a first axial bore; a cylindrical thrust piece having a second axial bore, said thrust piece concentrically located and axially moveable within said body; a cylindrical end piece having a third axial bore, said end piece fixedly connected to said body; at least three driving elements circumferentially arranged and radially spaced within said body so as to bear against an inner wall of said tube receptacle, wherein said at least three driving elements are configured to be movable predominantly in a radial direction between said body and said thrust piece; a guide slope in the form of a conically shaped collar arranged on said thrust piece and in contact with said at least three driving elements; and detaining centrifugal elements displaceable predominantly in a radial direction arranged between said thrust piece and said end piece.
Priority Claims (1)
Number |
Date |
Country |
Kind |
199 29 582 |
Jun 1999 |
DE |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application claims priority under 35 U.S.C. §119 of German Patent Application No. 199 29 582.4, filed on Jun. 29, 1999, the disclosure of which is expressly incorporated by reference herein in its entirety.
US Referenced Citations (6)
Foreign Referenced Citations (4)
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Mar 1993 |
DE |
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Dec 1993 |
DE |
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DE |
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Apr 1997 |
DE |