Method for establishing a nail connection and nails therefor
AssigneeBöllhoff Verbindungstechnik GmbH
InventorsTorsten Draht, Gerson Meschut
Life of this patent
Estimating the term…
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.
Claims18
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.
Dependencies are inferred from the claim text.