DE20116970U1

DE20116970U1 - Socket for ball and socket hitch, especially for farm or agricultural vehicles, has recessed buffer region in coupling surface

Info

Publication number: DE20116970U1
Application number: DE20116970U
Authority: DE
Original assignee: Rockinger Spezialfabrik fuer Anhangerkupplungen GmbH and Co
Current assignee: Rockinger Spezialfabrik fuer Anhangerkupplungen GmbH and Co
Priority date: 2001-10-16
Filing date: 2001-10-16
Publication date: 2003-02-20
Anticipated expiration: 2011-10-17

Abstract

The coupling surface (14) of the socket (10) includes a load surface region which is brought into contact with the cooperating coupling surface (16) of the ball (12) when the trailer is hitched to the towing vehicle. A buffer surface region (20) in the coupling surface is recessed relative to the load surface region.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims

1. Ball socket for a ball coupling for coupling a trailer vehicle to a towing vehicle, particularly in the agricultural and forestry sector, which has a coupling surface section ( 14 ; 214 ) for abutment against a mating coupling surface section ( 16 ; 116 ) of a coupling ball ( 12 ; 112 ) , characterized in that the coupling surface section ( 14 ; 214 ) has a Lastflächenbe rich ( 18 ; 218 ), which when coupling the trailer vehicle to the towing vehicle with the mating coupling surface section ( 16 ; 116 ) of the coupling ball ( 12 ; 112 ) in force-transmitting loading contact can be brought, and has a storage area ( 20 ; 220 ) which is recessed with respect to the load area ( 18 ; 218 ).

2. ball socket according to claim 1, characterized in that the storage area ( 20 ; 220 ) of the Lastflächenbe rich ( 18 ; 218 ) is enclosed.

3. Ball socket according to claim 2, characterized in that the load surface area ( 18 ; 218 ), preferably in the width direction, encircling annular sealing surface ( 22 ; 222 ).

4. Ball socket according to one of the preceding claims, characterized in that the load surface area ( 18 ; 218 ) at least one load surface ( 24 , 26 , 42 ; 224 ; 226 ), preferably a plurality of load surfaces ( 24 , spaced apart in the width direction) 26 , 42 ; 224 , 226 ).

5. Ball socket according to claim 4, characterized in that a first load surface ( 24 ; 224 ) is formed on a reference length circle ( 40 ; 240 ) leading in a straight-ahead train.

6. Ball socket according to claim 5, characterized in that the first load surface ( 24 ; 224 ) in the direction of the parallel circle in an angular range of ± 70 °, preferably ± 60 °, particularly preferably ± 50 °, around the reference longitudinal circle ( 40 ; 240 ) and extends in the longitudinal circle direction in an angular range from 10th to 80th, preferably from 20th to 60th, degree of latitude.

7. ball socket according to claim 4 and 5, if desired in connec tion with claim 6, characterized in that at least one further load surface ( 26 , 42 ; 226 ) on a with respect to the reference longitudinal circle ( 40 ; 240 ) by + 120 ° to + 130 ° or / and is formed by -120 ° to -130 ° in the parallel direction of the latitude.

8. Ball socket according to claim 7, characterized in that the at least one further load surface ( 26 , 42 ; 226 ) extends in the direction of the parallel of latitude over an angular range from 20 ° to 60 °, preferably from 40 ° to 50 °, particularly preferably from 45 °, and extends in the longitudinal circle direction over an angular range from the 10th to the 80th, preferably from the 20th to the 60th, degree of latitude.

9. Ball socket according to one of the preceding claims, characterized in that the pole (P10; P210) of the coupling surface section ( 14 ; 214 ) and preferably a surface area surrounding the pole (P10; P210) are part of the storage surface region ( 20 ; 220 ).

10. Ball socket according to one of the preceding claims, characterized in that the storage area area ( 20 ; 220 ) compared to the load area area ( 18 ; 218 ) by about 0.5 to 3.5 mm, preferably 1 mm to 3 mm, particularly preferably around 2 mm, is recessed.

11. Ball socket according to one of the preceding claims, characterized in that the transitions from the load surface area ( 218 ) to the storage surface area ( 220 ) are rounded off at least in sections, preferably completely.

12. ball socket according to the preamble of claim 1 and ge if desired according to one of the preceding claims, characterized in that on the coupling surface section ( 14 ; 214 ) opposite convex outer surface ( 36 ; 236 ) of the ball socket ( 10 ; 210 ) in the pole region a hold-down contact surface ( 38 ; 238 ) protruding with respect to the remaining outer surface ( 36 ; 236 ) is formed.

13. Ball socket according to claim 12, characterized in that the hold-down contact surface ( 38 ; 238 ) has an approximately spherical shape.

14. Ball socket according to claim 12 or 13, characterized in that the hold-down contact surface ( 38 ; 238 ) is concentric with the load area ( 18 ; 218 ).

15. Ball socket according to one of claims 12 to 14, characterized in that the hold-down contact surface ( 38 ; 238 ) compared to the ver remaining outer surface ( 36 ; 236 ) by 0.5 mm to 3.5 mm, preferably 1 mm to 3 mm, particularly preferably by 2 mm, protrudes.

16. Ball socket according to one of the preceding claims, characterized, that by forging, preferably using little Remove at least two successive forging operations the degree of deformation.

17. Coupling ball for a ball coupling for coupling a running vehicle to a towing vehicle, in particular in the agricultural and forestry sector, which section has a mating coupling surface ( 16 ; 116 ) for bearing a ball socket ( 10 ; 210 ) on it, characterized in that the Counter-coupling surface section ( 16 ; 116 ) has a Lastflä chenbereich ( 118 ) with at least one load surface ( 24 ; 142 ), which can be brought into contact with the ball socket ( 10 ; 210 ) in force-transmitting contact when coupling the trailer vehicle to the Zugfahr, and one Storage area area ( 120 ), which is recessed with respect to the load area area ( 118 ) and which at least in a latitude area ( 134 ) of the coupling ball ( 112 ) adjoins the least one load area ( 124 , 142 ) in the direction of the width circle.

18. Coupling ball according to claim 17, characterized in that the storage area ( 120 ) is enclosed by the load area ( 118 ).

19. Coupling ball according to claim 18, characterized in that the load surface region ( 118 ) has a, preferably in the width direction, circumferential closed sealing surface ( 122 ).

20. Coupling ball according to one of claims 17 to 19, characterized in that the load surface area ( 118 ) has a plurality of load surfaces ( 124 , 142 ) which are arranged at a distance from one another in the parallel direction.

21. Coupling ball according to one of the preceding claims, characterized in that a first load surface ( 124 ) is formed on a reference length circle ( 140 ) leading in a straight-ahead train journey.

22. Coupling ball according to claim 21, characterized in that the first load surface ( 124 ) in the direction of the parallel of latitude in an angular range of ± 70 °, preferably ± 60 °, particularly preferably ± 50 °, around the reference degree of longitude ( 140 ) and in the longitudinal direction extends in an angular range from 10th to 80th, preferably from 20th to 60th, latitude.

23. Coupling ball according to claim 20 and 21, if desired in conjunction with claim 22, characterized in that at least one further load surface ( 124 ) on a with respect to the reference longitudinal circle ( 140 ) by a + 120 ° to + 130 ° or / and by a - 120 ° to -130 ° in the direction of parallel to the winkelbeab standing longitude is formed.

24. Coupling ball according to claim 23, characterized in that the at least one further load surface ( 142 ) in the width direction of the circle over an angular range from 20 ° to 60 °, preferably from 40 ° to 50 °, particularly preferably from 45 °, and in Län genkreisrichtung extends over an angular range from 10th to 80th, preferably from 20th to 60th, latitude.

25. Coupling ball according to one of claims 17 to 24, characterized in that the coupling ball pole (P112) and preferably a surface area surrounding the pole (P112) are part of the storage surface area ( 120 ).

26. Coupling ball according to one of claims 17 to 25, characterized in that the storage area area ( 120 ) compared to the load area area ( 118 ) by about 0.5 to 3.5 mm, preferably 1 mm to 3 mm, particularly preferably by 2 mm , is deepened.

27. Coupling ball according to claim 26, characterized in that the transitions from the load surface area ( 118 ) to the storage surface area ( 120 ) are rounded off at least in sections, preferably completely.

28. Ball coupling for coupling a trailer vehicle to a towing vehicle, in particular in the agricultural and forestry field, with a ball socket ( 10 ; 210 ) according to one of claims 1 to 16 or / and with a coupling ball ( 12 ; 112 ) according to one of the claims 17 to 27.

29. Ball coupling according to claim 28, characterized in that it comprises a holding-down device arranged on the vehicle having the coupling ball ( 12 ; 112 ), the ball socket ( 10 ; 210 ) in the coupled state between the coupling ball ( 12 ; 112 ) and holding-down device relative to this is kept mobile.