A support for a mitre joint uses two wedging mechanisms disposed at a characteristic angle. Each wedging mechanism is arranged to locate inside a hollow rail, such as within an extruded hollow beam. The wedging mechanism can be operated from outside the joint in order to clamp the mechanism in position. The mechanism has a self centering capability to assist in accurately locating the rails relative to each other.

A cornerlock is used with a frame assembly. The frame assembly includes first and second frame members each having walls defining interior voids. The cornerlock extends into the interior void of each of the first and second frame members. The cornerlock comprises first and second body members mating with the interior voids of the first and second frame members, respectively. Each body member has proximal and distal ends and are rigidly fixed to one another. The first body member has a leg and an arm both extending from the proximal end to the distal end. The leg is resistant to deflection. The arm is deflectable about the proximal end and immediately deflects upon engagement with the first frame member for engaging the leg with one of the plurality of walls and biasing the arm into engagement with another one of the plurality of walls of the first frame member.

A frame connector for securing a first frame member to a second frame member, the frame connector comprising a first body having a first pair of arms extending along first and second axes from a origin mitre plane to respective free ends; a second body adjacent to the first body and having a contact surface and a second pair of arms extending from the origin mitre plane to respective free ends, and an actuator secured to the first body and arranged to apply a force to the contact surface in a first direction. The first and second axes are non-colinear and define a first plane. The first direction forms an acute angle to the first plane. The actuator is arranged to displace the first body relative to the second body in the first direction.

A frame connector for securing a first frame member to a second frame member, the frame connector comprising a first body having a first pair of arms extending along first and second axes from a origin mitre plane to respective free ends; a second body adjacent to the first body and having a contact surface and a second pair of arms extending from the origin mitre plane to respective free ends, and an actuator secured to the first body and arranged to apply a force to the contact surface in a first direction. The first and second axes are non-colinear and define a first plane. The first direction forms an acute angle to the first plane. The actuator is arranged to displace the first body relative to the second body in the first direction.

A connector is adapted for securing into a fixed position two frame members that are positioned to define a common miter joint and aligned slots to collectively define a single correspondingly-shaped connector opening. The connector includes a peripheral configuration corresponding to a peripheral configuration of the correspondingly-shaped opening. The connector may have a peripheral surface having on predetermined portions thereof a plurality of stepwise ridges adapted to contact with reduced friction only spaced-apart areas of sidewalls of the correspondingly-shaped opening. The connector may have at least one void in the connector to permit deformation sufficient to accommodate variations between the shape of the connector and the shape of the correspondingly-shaped opening. A method of using the connector is also disclosed.

A support for a mitre joint uses two wedging mechanisms disposed at a characteristic angle. Each wedging mechanism is arranged to locate inside a hollow rail, such as within an extruded hollow beam. The wedging mechanism can be operated from outside the joint in order to clamp the mechanism in position. The mechanism has a self centering capability to assist in accurately locating the rails relative to each other.

Joint for the angular connection of a pair of hollow profile members (50) having an angular configuration corresponding to the angle of the assembled profile members (50) and comprising a slide base portion (2, 2, 2), a sheet metal portion (1, 1) superimposed thereupon and a bolt (5) passing through the sheet metal portion (1, 1) and screwed into a nut (4) mounted onto the base portion (2, 2, 2), wherein tightening of bolt (5) pushes upwardly extending surfaces on either side of portion (1, 1) whereby their sharp edges indent the walls of the hollow profile members being connected. The indentation and efficient angular connection of the hollow profile members is enhanced through: a) forming of the sharp edges of the sheet metal to align an aberrant edge thereof in an indentation appropriate direction, b) appropriately orienting the sheet metal portion (1, 1) to comply with a set of predetermined geometrical parameters and c) selectively employing varying embodiments of the slide base portion to obtain rapprochement of the points of indentation of the walls being indented.

Joint for the angular connection of a pair of hollow profile members (50) having an angular configuration corresponding to the angle of the assembled profile members (50) and comprising a slide base portion (2, 2, 2), a sheet metal portion (1, 1) superimposed thereupon and a bolt (5) passing through the sheet metal portion (1, 1) and screwed into a nut (4) mounted onto the base portion (2, 2, 2), wherein tightening of bolt (5) pushes upwardly extending surfaces on either side of portion (1, 1) whereby their sharp edges indent the walls of the hollow profile members being connected. The indentation and efficient angular connection of the hollow profile members is enhanced through: a) forming of the sharp edges of the sheet metal to align an aberrant edge thereof in an indentation appropriate direction, b) appropriately orienting the sheet metal portion (1, 1) to comply with a set of predetermined geometrical parameters and c) selectively employing varying embodiments of the slide base portion to obtain rapprochement of the points of indentation of the walls being indented.

A frame assembly is disposed within an opening of a structure. The frame assembly includes first and second frame members each defining an interior and having a plurality of walls extending between a first end and a second end. The frame assembly includes a cornerlock extending into each of the first and second frame members. The cornerlock includes first and second body members each having hinge and distal ends and are rotatably coupled together at the hinge ends. The first body member has at least one arm deflectable to bias against and engage the first frame member. Each of the first and second frame members has a mitered end. The first and second frame members abut at the mitered ends in an angular configuration. The cornerlock rotates to correspond with the angular configuration and is entirely disposed within a combination of the interiors of the first and second frame members.

A cornerlock is used with a frame assembly. The frame assembly includes first and second frame members each having walls defining interior voids. The cornerlock extends into the interior void of each of the first and second frame members. The cornerlock comprises first and second body members mating with the interior voids of the first and second frame members, respectively. Each body member has proximal and distal ends and are rigidly fixed to one another. The first body member has a leg and an arm both extending from the proximal end to the distal end. The leg is resistant to deflection. The arm is deflectable about the proximal end and immediately deflects upon engagement with the first frame member for engaging the leg with one of the plurality of walls and biasing the arm into engagement with another one of the plurality of walls of the first frame member.