Metal lamella strip, process for its production, as well as a framework band made from it
AssigneeGeissler Stanztechnik GmbH
InventorsGerd Strutz, Norbert Seissler
Life of this patent
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Abstract
A lamella strip intended for further processing into a framework band with a U-shaped or V-shaped cross-section comprises lamellae (2) defined by separating cuts (1) which stand opposite one another in pairs, which lamellae are connected with one another via bridges (4). Each lamella (2) is divided by a center cut (6). Each lamella has two oblong bead-like stamp marks (7), which are arranged on both sides of the center cut (6), and end at a distance (A) from the edges (3) of the lamella strip, forming a smooth end region (8). To produce such a lamella strip, first the separating cuts (1) and center cuts (6) are made in a strip of sheet metal, before the bead-like stamp marks (7) are formed.
Claims10
Metallic lamella strip as an intermediate product for further processing into a framework band with a U-shaped or V-shaped cross-section, which band is capable of serving as a reinforcement insert for sealing profiles or edge protection profiles, said strip comprising:
- lamellae with two lamella shanks that stand opposite one another in pairs and extend crosswise to the longitudinal axis of the lamella strip;
- each lamella shank being separated from the two adjacent lamella shanks by a separating cut;
- each lamella being connected with the two adjacent lamella via a bridge, in each instance;
- a center cut extending crosswise to the longitudinal direction of the lamella strip, over one lamella in each instance, from one lamella shank over the center of the lamella strip into the opposite lamella shank;
- wherein each lamella has two oblong beads, which are stamped on both sides of the center cut, and extend from one lamella shank over the center of the lamella strip into the opposite lamella shank;
- and
- wherein the beads end at a distance from the edges of the lamella strip, in such a way that the lamella shanks have a non-stamped, smooth end region, in each instance.
A metallic framework band with a U-shaped or V-shaped cross-section capable of serving as a reinforcement insert in sealing profiles and edge protection profiles, said band comprising:
- lamellae with two lamella shanks that stand opposite one another in pairs and extend crosswise to the longitudinal axis of the lamella strip;
- each lamella shank being separated from the two adjacent lamella shanks by a separating cut that has been opened in its longitudinal direction by stretching;
- each lamella being connected with the two adjacent lamellae via a bridge, in each instance;
- a center cut which has been opened in its longitudinal direction by stretching the framework band extends crosswise to the longitudinal direction of the lamella strip, over one lamella in each instance, from one lamella shank over the center of the lamella strip into the opposite lamella shank;
- wherein each lamella has two oblong beads, which are stamped on both sides of the center cut, and extend from one lamella shank over the center of the lamella strip into the opposite lamella shank;
- and
- wherein the beads end at a distance from the edges of the lamella strip, in such a way that the lamella shanks have a non-stamped, smooth end region, in each instance.
Dependencies are inferred from the claim text.