초록 ▼

A hammer device in the form of a needle gun. The gun includes a cylinder housing containing a cylinder, in which a flying piston is displaced and an anvil, against which the piston strikes. A needle carrier is located on the anvil, and the needles of the gun are held in the carrier so that the needl

A hammer device in the form of a needle gun. The gun includes a cylinder housing containing a cylinder, in which a flying piston is displaced and an anvil, against which the piston strikes. A needle carrier is located on the anvil, and the needles of the gun are held in the carrier so that the needles can be longitudinally displaced. To reduce the wear on the needle carrier and to preserve the needle heads of the needles, the needle carrier is configured from several layers, at least in the vicinity of the guide plate. The layers are of alternating hard and soft material.

대표청구항 ▼

The invention claimed is: 1. A hammer device in a form of a needle gun, comprising:a cylinder housing in which a movable cylinder is slidably mounted between two compression springs, wherein a floating piston is moved to and from in the cylinder by compressed air, and delivers a hammer impulse onto

The invention claimed is: 1. A hammer device in a form of a needle gun, comprising:a cylinder housing in which a movable cylinder is slidably mounted between two compression springs, wherein a floating piston is moved to and from in the cylinder by compressed air, and delivers a hammer impulse onto an anvil;a plurality of needles mounted in an axially sliding manner in a needle carrier and under operating pressure needle heads of the needles move off the needle carrier and into a position of contact with the anvil;the needle carrier disposed between the anvil and one of the two springs, the needle carrier comprising a guide plate adjacent the one of the two springs and a separately manufactured support ring disposed between the guide plate and the anvil;the guide plate manufactured of at least two layers arranged perpendicularly to a running direction of the needles, wherein a material layer of the guide plate that is closest to the anvil having at least one of a harder material or a more wear-resistant material than a material layer which follows in the axial direction of the needles.