Hollow profile bar
OwnerWolfgang Rixen, Gerrit Piesinventors
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Abstract
A hollow profile bar, preferably of extruded metal, comprises a tubular wall that is equally thick all around and is provided with salient outer webs evenly distributed about the outer circumference, which in pairs form undercut casing grooves with side walls, a radial salience of the outer webs from the tubular wall being substantially equal to the thickness of the tubular wall. To achieve tight packing of profile bars that are to be connected in one sectional plane of a hollow profile bar, the hollow profile bar is configured in such a way that slope lines of the side walls of an outer web intersect between the outer web and the axis of the bar.
Claims9
A hollow profile bar (10) of extruded metal comprises a tubular wall (11) that is equally thick all around and is provided with radially salient outer webs (12) evenly distributed about an outer circumference, the webs in pairs forming undercut casing grooves (14) with side walls (13), a salience (15) of the outer webs (12) from said tubular wall (11) being substantially equal to the thickness (16) of said tubular wall (11), wherein slope lines (17, 17′) of the side walls (13) of each of the outer webs (12) intersect between the outer web (12) and an axis (18) of the bar, and wherein an inner wall (26) of said tubular wall (11) is provided with more than two radially salient inner webs (27) evenly distributed about an inner circumference.
Dependencies are inferred from the claim text.