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US 2002/0054787 A1Published application
Device for the face end coupling of profile bars
OwnerHelmut Kahlinventor
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OwnerHelmut Kahlinventor
Estimating the term…
A device for the face end coupling of profile bars that are provided with undercut, continuous longitudinal grooves and incorporate a central core that forms the base of the longitudinal grooves and, projecting from same, webs that encompass the longitudinal grooves and have angled web shoulders, having a fastening member that is fixable with a shaft section at the face end in the core of a first profile bar in such a way that a head of the fastening member extends into a longitudinal groove of a second profile bar that is to be connected crosswise, characterized in that a fastening surface of the fastening member facing the shaft section or face end of the first profile bar has a distance to inside surfaces of web shoulders that encompass the longitudinal grooves, and that a wedge-shaped locking element can be brought into close-lying engagement with a tensioning surface against the fastening surface on one hand, and with a support surface against the inside surfaces of the web shoulders on the other hand, and is displaceable in the longitudinal direction of the longitudinal groove so that the profile bars can be firmly locked to one another.
A device for the face end coupling of profile bars (1, 2) that are provided with undercut, continuous longitudinal grooves (6) and incorporate a central core (3) that forms the base of the longitudinal grooves (6) and, projecting from this core, webs (4) that encompass the longitudinal grooves and have angled web shoulders (5), having a fastening member (10) that is fixable with a shaft section (11) at the face end in the core (3) of a first profile bar (1) in such a way that a head (12) of the fastening member (10) extends into a longitudinal groove (6) of a second profile bar (2) that is to be connected crosswise, characterized in that a fastening surface (15) of the fastening member (10) facing the shaft section (11) or face end of the first profile bar (1) has a distance to inside surfaces (5a) of web shoulders (5) that encompass the longitudinal grooves (6) and that a wedge-shaped locking element (18) can be brought into close-lying engagement with a tensioning surface (22) against the fastening surface (15) on one hand, and with a support surface (21) against the inside surfaces (5a) of the web shoulders (5) on the other hand, and is displaceable in the longitudinal direction of the longitudinal groove (6) so that the profile bars (1, 2) can be firmly locked to one another.
A device according to any of the above claims, characterized in that the fastening member (10) has, adjacent to the head (12) a threadless collar section (13) that serves as a screw-in limit stop and determines with its axial length the distance between the fastening surface (15) and the inside surface (5) of the web shoulders (5).
A device according to any of the above claims, characterized in that the locking element (18) incorporates a central elongated cutout (20) for receiving the shaft or collar section (11, 13) of the fastening member (10).
A device according to any of the above claims, characterized in that the locking element (18) incorporates a straight section (23) of a constant thickness, which is followed by a wedge section (24) that incorporates a wedge surface (25).
A device according to any of claims I through 9, characterized in that the wedge surface (25) is curved concavely or convexely.
A device according to any of the above claims, characterized in that the locking element (18) incorporates a shoulder (26) to protect against a twisting of the profile bars (1, 2) that hooks, in a form-fitting manner, into opening slits (7) of the longitudinal grooves (6) of the first and second profile bar (1, 2) that are delimited by the web shoulders (5a), said longitudinal grooves being located in one plane.
A device according to any of the above claims, characterized in that the shoulder 26 is designed to cooperate with an assembly tool.
Dependencies are inferred from the claim text.