Securing means for fastening structural attachments to hollow metal or plastic shaped parts

Claim 2

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being tensioning screws screwed into tapped through openings of said clamping members said securing means being characterized in that a portion of said through opening is unthreaded, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 3

Securing means in accordance with claim 1 wherein said tensioning screws are provided with a tip extending beyond the thread.

Claim 4

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being tensioning screws screwed into tapped through openings of said clamping member, said securing means being characterized in that the thread attaching such members is deformed at least in one place, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 5

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being tensioning screws screwed into tapped through openings of said clamping member, said securing means being characterized in that the thread attaching such members is deformed at least in one place, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 6

Securing means in accordance with claim 3, characterized in that said tensioning screws are provided with a tip extending beyond the thread.

Claim 7

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut Portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being non-circular in shape and being inserted into correspondingly shaped openings through said clamping members, said fasteners and clamping members being riveted together, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 8

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut Portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being non-circular in shape and being inserted into correspondingly shaped openings through said clamping members, said fasteners and clamping members being riveted together, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 9

Securing means in accordance with claim 5, characterized in that said fasteners have longitudinal ribs and said through openings have corresponding lateral groove-like recesses.

Claim 10

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being provided with a head at one end and said attachments having open slots at one end whose width is adapted to receive said fastener and is less than the diameter of said head, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 11

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said fasteners being provided with a head at one end and said attachments having open slots at one end whose width is adapted to receive said fastener and is less than the diameter of said head, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 12

Securing means in accordance with claim 7, characterized in that said slots are provided with a countersink for said head.

Claim 13

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, said clamping members being substantially rectangular, with two sides shorter than the other two sides, being rounded off at two diagonally opposed corners, the spacing of said rounded-off corners from each other being somewhat smaller than the width of the undercut slot, each said clamping member having a ramp on each of its two shorter sides on their upper rim, each said ramp starting from a rounded corner and rising toward the corresponding other corner, the upper portion of each ramp having corrugations, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.

Claim 14

Securing means for securing structural attachments to shaped parts of metal or plastic, particularly shaped frames of doors or windows having undercut slots providing undercut walls spaced apart by an aperture slot, comprising: clamping members whose length is greater than their width, inserted into said slots and engaging under surfaces of said undercut walls, said clamping members being narrower in width than said aperture slot and shorter in length than the undercut portion of said slots, said clamping members being substantially rectangular, with two sides shorter than the other two sides, being rounded off at two diagonally opposed corners, the spacing of said rounded-off corners from each other being somewhat smaller than the width of the undercut slot, each said clamping member having a ramp on each of its two shorter sides on their upper rim, each said ramp starting from a rounded corner and rising toward the corresponding other corner, the upper portion of each ramp having corrugations, and fasteners for connecting said attachments and said clamping members, said fasteners being rotatably anchored to said attachments, said clamping members being sufficiently connected with said fasteners as to prevent rotation relatively to each other at least to the extent that, when said fasteners are rotated, said clamping members rotate in said undercut slot from an initial position and a locking position is ensured, whereby said attachments and said clamping means secured to them by said fasteners form an assembly unit which is secured as a whole on said shaped parts.