Firearm, in particular handgun, and method of producing a firearm

US9574835B2 · kind B2 · utility

Assignee

• Umarex GmbH & Co. KG · DE

Inventors

• Eyck Pflaumer · Arnsberg, DE
• Martin Wonisch · Arnsberg, DE
• Thomas Scheunert · Arnsberg, DE

Key dates

• Filing date: Mar 2, 2015
• Grant date: Feb 21, 2017
• Expiry date: Mar 2, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49718
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A firearm, in particular handgun, has a barrel mechanism with a barrel and a chamber, a closing mechanism with a slide and also a cylinder-piston mechanism for gas pressure-operated closure delay. The cylinder-piston mechanism has a hollow cylinder with a hollow cylinder wall. A channel is formed between the barrel mechanism and the cylinder-piston mechanism. The hollow cylinder wall is fitted with at least one reinforcing element. The firearm may be produced by the following process steps: introduction of a first portion of the bore into the basic body up to the recess; introduction of a second portion of the bore up to the hollow cylinder; drilling of the channel, wherein the drill is conducted through the bore; and introduction of the reinforcing element into the recess, wherein the bore is closed in a gas-tight manner.