Spacer tube for an insulated glazing, as well as device and method for production of the spacer tube, and insulated glazing having a spacer frame composed of such spacer tubes
AssigneeHelmut Lingemann GmbH & Co.
InventorJoerg Engelmeyer
Life of this patent
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Abstract
The present invention relates to a spacer tube (1) for the production of spacer frames for multi-pane insulated glazing having at least two glass panes, having a tube wall (2) that has a visible wall (6), a bottom wall (7) that lies opposite the former, and two side walls (8) that lie opposite one another, for a connection with a glass pane each, whereby at least one of the two side walls (8) is cold-strengthened, at least in partial regions, to increase the bending stiffness of the spacer tube (1), as well as a multi-pane insulated glazing having a spacer frame having at least one such spacer tube (1), and a device and a method for production of the spacer tube (1).
Claims22
Spacer tube for the production of a spacer frame for multi-pane insulated glazing having at least two glass panes, having a tube wall, the tube wall having a visible wall, a bottom wall that lies opposite the visible wall, and two side walls that lie opposite one another, for connecting with a glass pane, in each instance,
- wherein at least one of the two side walls has an embossing that cold-strengthens the respective side wall in order to increase the bending stiffness of the spacer tube,
- wherein the embossing is configured as a depression, viewed from an inner wall surface or from an outer wall surface of the tube wall, and
- wherein the embossing does not extend through the entire side wall, so that a wall thickness in embossed wall sections of the side wall is lower than in non-embossed wall sections of the side wall.
Dependencies are inferred from the claim text.