Nut and method for its fabrication

• US 20020106263A1
• Filed: 11/06/2001
• Published: 08/08/2002
• Est. Priority Date: 11/06/2000
• Status: Active Grant

• Current Assignee: Metallwarenfabrik Hermann Winker GmbH & Co. KG.
• Original Assignee: Alexander Winker
• Inventors: Winker, Alexander
• Granted Patent: US 6,843,631 B2
• Time in Patent Office: Days
• US Class Current: 411/533
• CPC Class Codes: B21K 1/70 of special shape, e.g. self-locking nuts, wing nuts
• CPC Class Codes: B21K 25/00 Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components uniting by interference- or press-fitting B23P11/02, B21K19/02
• CPC Class Codes: B60B 3/145 using washers or distance bushes
• CPC Class Codes: B60B 3/16 by bolts or the like
• CPC Class Codes: F16B 39/26 with spring washers fastened to the nut or bolt-head

Abstract

The present invention concerns a nut (1) with a nut body (10) having an enlarged shoulder (15) and a turning plate (20) that is rotationally and inseparably arranged on the nut body, wherein the turning plate is shoved onto the nut body and secured by means of a locking element. According to the invention, the locking element is fashioned as a bead (26) provided on the nut body (10), so that the turning plate (20) is arranged between the enlarged shoulder (15) and the bead (26). Moreover, the present invention concerns a method for fabrication of such a nut, wherein the nut body (10) and the turning plate (20) are made by massive forming and, before or after shoving on the turning plate (20), an upsetting (26) is formed by pressing in the nut body (10), or during the fabrication of the nut body (10) a bead (26) is formed as a single piece in the nut body, so that the turning plate (20) is positioned between the enlarged shoulder (16) and the upsetting or the bead (26).

Claims

1. Nut (1) with a nut body (10) with an enlarged shoulder (15) and a turning plate (20) that can rotate and is inseparably arranged on the nut body, wherein the turning plate is shoved onto the nut body and secured by means of a locking element, characterized in that the locking element is fashioned as a bead (26) provided on the nut body (10), so that the turning plate (20) is arranged between the enlarged shoulder (15) and the bead (26).

2. Nut according to claim 1, further characterized in that the bead is fashioned as an upsetting (26) formed by a pressing process or it is formed as a single piece on the nut body.

3. Nut according to claim 1, further characterized in that the nut body has a base body (11) and a neck piece (17) and the turning plate (20) is arranged on the neck piece (17).

4. Nut according to claim 3, further characterized in that a conical surface (18) closes off the neck piece (17).

5. Nut according to claim 3, further characterized in that the bead (26) is formed on the neck piece (17).

6. Nut according to claim 3, further characterized in that the bead (26) is formed at the transition from the conical surface (18) to the neck piece (17).

7. Nut according to claim 3, further characterized in that a notch (27) is formed by pressing in the conical surface (18) and/or in the neck piece (17), which is bounded by the bead (26) on its edge facing the turning plate.

8. Nut according to claim 3, further characterized in that the enlarged shoulder (15) has a conical underside (16) at its end facing the neck piece (17) and the turning plate (20) has a conical surface region (24) along its inner surface (22), which makes contact with the conical underside (16) of the enlarged shoulder (15).

9. Nut according to claim 1, further characterized in that the turning plate (20) has a cylindrical surface region (23) along its inner surface (22), which abuts against the neck piece (17).

10. Nut according to claim 1, further characterized in that the turning plate (20) has a slightly conical surface region (23′

) along its inner surface (22).

11. Nut according to claim 10, further characterized in that a bevel or chamfer is provided at the end of the cylindrical (23) or slightly conical surface region (23′

) facing the base body.

12. Nut according to claim 1, further characterized in that the turning plate (20) is somewhat trapezoidal in cross section.

13. Nut according to claim 1, further characterized in that the base body (11) has a cap (12).

14. Nut according to any one of the preceding claims wherein said nut is a wheel nut for motor vehicles.

16. Method according to claim 15, further characterized in that a notch (27) is formed by pressing in the nut body (10), being bounded by the bead (26) at its edge facing the turning plate.

17. Method according to claim 15, further characterized in that a material overhang (28) is worked in when pressing the nut body (10) and is subsequently formed into a bead (26).

18. Method according to claim 15, further characterized in that the nut body has a base body (11) and a neck piece (17) and the turning plate (20) is arranged on the neck piece (17).

19. Method according to claim 18, further characterized in that a conical surface (18) adjoins the neck piece (17) and the turning plate (20) is arranged on the neck piece (17).

20. Method according to claim 18, further characterized in that the bead (26) is fashioned on the neck piece (17).

21. Method according to claim 18, further characterized in that the notch (27) is formed by pressing in the conical surface (18) and/or the neck piece (17).

22. Method according to one of claims 18 to 20, further characterized in that the material overhang (28) is fashioned at the transition from the conical surface (18) to the neck piece (17).

15. Method for making a nut with a nut body (10) and a turning plate (20) that is rotationally and inseparably arranged on the nut body, wherein the nut body (10) and the turning plate (20) are made by massing forming and the turning plate (20) is shoved onto the nut body (10) and secured by a locking element, characterized in that, before or after shoving on the turning plate (20), an upsetting (26) is formed by pressing in the nut body (10), or a bead (26) is formed as a single piece in the nut body during the making of the nut body (10), so that the turning plate (20) is positioned between the enlarged shoulder (15) and the upsetting or the bead (26).