Method for establishing a nail connection and nails therefor

Patent metadata

Field	Value
Publication number	US-9435366-B2
Application number	US-201213618229-A
Country	US
Kind code	B2
Filing date	Sep 14, 2012
Priority date	Jan 17, 2006
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

A method is described for establishing a nail connection between two components as well as a nail therefor. The nail is driven through the non-prepunched components in the joining area at a high speed such that the nail tip fully penetrates both components and forms a toric-shaped material bulge in the nail-head-side component, which protrudes into a circular groove of the nail head, and a crater-shaped material bulge is formed in the component facing away from the nail head, which protrudes in the opposite direction.

First claim

We claim:

1. A combination comprising a nail which establishes a connection between two non-prepunched components made of steel, aluminum, magnesium or plastic, wherein the nail, including a nail head, a nail shaft and a nail tip is designed rotationally symmetrically, the nail being made from a single piece comprising:
the nail head which is a flat head with an even top side, a cylindrical circumferential surface and an even bottom side wherein a circular groove is formed in the even bottom side adjacent to on the one hand the nail shaft and on the other hand an outer surface of the even bottom side extending to the cylindrical circumferential surface in order to transfer a setting force at an end of a setting process from a piston to the components, said circular groove receiving a toric-shaped material bulge of a nail-head side component;
wherein the nail shaft is primarily cylindrical and is provided with a surface profiling for receiving material from a component of the combination facing away from the nail head and wherein material from the component facing away from the nail head is drawn along the nail shaft to form a material bulge; and
the nail tip having an ogival shape with an ogivality factor of 3 to 5.

2. The combination according to claim 1 , wherein the circular groove has a rounded surface adjacent to the nail shaft, in which the rounded surface transitions into a conical surface.

3. A nail according to claim 1 , wherein nail shaft is designed convergent in the direction of the nail head.

4. A nail according to claim 1 , wherein the nail shaft is shaped divergent in the direction of the nail head.

5. The combination according to claim 1 , wherein the surface profiling is arranged only in one area of the nail shaft, which lies within the component facing away from the nail head.

6. The combination according to claim 1 , wherein the ratio of the maximum depth of the surface profiling to the average diameter of the nail shaft is less than 0.1.

7. The combination according to claim 1 , wherein the surface profiling consists of a series of circular recesses and ridges so that the surface profiling in axial sections is made up of a rounded wave-like profile.

8. A nail according to claim 1 , wherein the surface profiling in axial sections is made up of a sawtooth profile.

9. A nail according to claim 1 , wherein the surface profiling is formed from a series of circular recesses and ridges.

10. A nail according to claim 1 , wherein the surface profiling is formed by a thread, which forms a corresponding counter thread during the axial driving of the nail into both components.

11. A nail according to claim 10 , wherein the incline of the thread formed by the surface profiling is less than 0.35.

12. A nail according to claim 10 , wherein the nail head has a drive characteristic for the engagement of a tool, in order to be able to release the nail from the two components again.

13. A nail according to claim 1 , including a profile-free section provided between a part of the nail shaft provided with a surface profiling and the nail tip.

14. A nail according to claim 13 , including a reduced diameter section provided between a part of the nail shaft provided with a surface profiling and the nail tip.

15. The combination according to claim 1 , wherein the even top side of the nail head is mainly even up to its outer edge in order to mainly transfer the setting forces exerted on the nail head in the end position of the nail to a nail-head-side component and to thereby avoid a penetration of the nail through the two components.

16. The combination according to claim 1 , wherein the nail tip has an ogivality factor of 4.

17. The combination according to claim 1 , wherein the nail is made of the single piece of a material from the group consisting essentially of steel, aluminum, magnesium, brass, ceramic and a fiber-reinforced plastic.

18. The combination according to claim 1 , wherein the nail head is a countersunk head, the even bottom side of said nail head having a diagonally running section and the circular groove across from it such that the countersunk head enters at least partially the material of a nail-head-side component.

Assignees

• Draht Torsten
• Meschut Gerson
• Boellhoff Verbindungstechnik Gmbh

Inventors

• Draht Torsten
• Meschut Gerson

Classifications

• Y10T29/53522

  Means to fasten by deforming · CPC title

• F16B19/14 Primary

  Bolts or the like for shooting into concrete constructions, metal walls or the like by means of detonation-operated nailing tools (tools therefor B25C, B27F) · CPC title

• Y10T29/49833

  Punching, piercing or reaming part by surface of second part · CPC title

• Y10T29/49837

  of first part · CPC title

• Y10T29/5343

  Means to drive self-piercing work part · CPC title