Wurth International Ag

Adolf Wuerth Gmbh & Co. Kg

Adolf Würth Gmbh & Co. Kg

Marcel Strobel

Uwe Frank

A gun rivet and a device for placing said rivet are disclosed. The gun rivet contains a rivet head () with a collar () at one end and a rivet tip () at the other. The rivet body contains a cavity () in the form of a bore in a sleeve section (). As with other gun rivets, the gun rivet is shot with a percussive-type action and with the aid of its rivet tip into an opening in two sheets () that are to be joined together, until the collar comes to rest on the upper face of the upper sheet. A tensile bolt is then introduced into the cavity and is connected to the base () of the latter. This can be achieved by resistance welding. The tensile bolt is then drawn until a rivet head is formed on the opposite side of the two sheets. The tensile bolt is then detached from the gun rivet, for example by shearing. The tensile bolt can be re-used to place another rivet.

Gun rivet

The invention relates to a blind rivet and a device for placing the blind rivet. The blind rivet contains a rivet head with a collar at one end and a rivet tip at the other. The rivet body contains a cavity in the form of a bore in a sleeve section. As with other blind rivets, the blind rivet is inserted into an opening in two sheets that are to be joined together, until the collar comes to rest on the upper face of the upper sheet. In a second step, the part of the rivet body or the rivet head that lies on the rear face of the two sheets is deformed with the aid of a hammer or expanding body, which is advanced with a percussive-type action in the same direction. A device for placing a rivet of this type contains a part that can be pushed forwards with a percussive-type action, this part consisting of a hammer for exerting pressure on the expansion body.

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Bretzfeld, Germany

Marcel Strobel