An assembled door frame is provided, including multiple of side frames spliced together, where every adjacent two of the side frames spliced at right angle are connected via a corner connector assembly. The corner connector assembly is arranged inside the every adjacent two of the side frames spliced at right angle. The corner connector assembly includes a corner connector and fixing bolts, and one of the every adjacent two of side frames spliced at right angle is fixed on the corner connector by the fixing bolts. In the embodiments, the side frames are spliced directly together through the respective corner connector assemblies each including the corner connector and the fixing bolts. On one hand, the corner connector and the fixing bolts are each disposed within the corresponding side frame, such that the original external structure of the side frames will not be changed after the side frames are spliced together, thereby reducing assembly errors of the door frame caused by using the connecting structure. On the other hand, the direct splicing of the side frames is achieved merely by two types of members that are the corner connector and the fixing bolts. So compared with the prior art, a welding process of the side frames is not required, the structure thereof is simple, and the mounting thereof is convenient.

A mitre joint for a metallic frame of a fenestration unit includes first and second frame members; a connector configured to locate the first and second frame members in relation to one another; and first and second fasteners configured to secure the first and second frame members to the connector. The connector has a first arm configured to extend within a hollow profile defined by the first frame member, and a second arm configured to extend within a hollow profile defined by the second frame member. A longitudinal axis of each of the first and second fasteners is configured to be parallel to a longitudinal axis of the respective connector arm. Each of the first and second fasteners is configured to engage the respective frame member when the respective connector arm extends within said frame member.

A structural assembly for a frame includes a first rail, a second rail, a third rail, a fourth rail, a first pivotable bracket member coupling the first and second rails, and a second pivotable bracket member coupling the third and fourth rails. The first rail includes a first end, a second end, and a first groove extending a distance between the first end and the second end thereof. The second rail includes a first end, a second end, and a second groove extending a distance between the first end and the second end thereof. The third rail includes a first end, a second end, and a third groove extending a distance between the first end and the second end thereof. The fourth rail includes a first end, a second end, and a fourth groove extending a distance between the first end and the second end thereof.

A mitred corner of a frame has a clamp 1 clamping together a top member 2 and a side member 3. The corner is at a corner of a glass panel 4 accommodated within a frame made up of four such members, each clamped together by similar clamps. The frame members are mitred at 45° with faces 8. Webs 7 of the frame members are drilled with bores 9 fixing screws 10 The screws engage in two clamp elements are used at each corner, in the form of stainless steel blocks 12,13. The block 12 has at its end close to the mitre faces 8, a 45° surface 17 and a threaded end bore 19 is provided. The block 13 has a finger 24 extending past the face 8. The finger has a clearance screw bore 25 and at its distal end a snib 26 directed towards the block 12.

According to one example, a window system includes a window and further includes a frame that can be coupled to an opening in a structure. The frame includes one or more window seats and one or more moveable window stops. The one or more window seats can surround all or a portion of a periphery of the window. The one or more moveable window stops can be moved and coupled to different positions along a depth of the one or more window seats. The window includes a first window portion, a second window portion, and an interlayer positioned in-between the first window portion and the second window portion. The interlayer extends out of the periphery of the window.

A structural assembly for a frame includes a first rail, a second rail, a third rail, a fourth rail, a first pivotable bracket member coupling the first and second rails, and a second pivotable bracket member coupling the third and fourth rails. The first rail includes a first end, a second end, and a first groove extending a distance between the first end and the second end thereof. The second rail includes a first end, a second end, and a second groove extending a distance between the first end and the second end thereof. The third rail includes a first end, a second end, and a third groove extending a distance between the first end and the second end thereof. The fourth rail includes a first end, a second end, and a fourth groove extending a distance between the first end and the second end thereof.

A mitred corner of a frame has a clamp 1 clamping together a top member 2 and a side member 3. The corner is at a corner of a glass panel 4 accommodated within a frame made up of four such members, each clamped together by similar clamps. The frame members are mitred at 45 with faces 8. Webs 7 of the frame members are drilled with bores 9 fixing screws 10 The screws engage in two clamp elements are used at each corner, in the form of stainless steel blocks 12,13.

The block 12 has at its end close to the mitre faces 8, a 45 surface 17 and a threaded end bore 19 is provided. The block 13 has a finger 24 extending past the face 8. The finger has a clearance screw bore 25 and at its distal end a snib 26 directed towards the block 12.

A corner key for a fenestration trim assembly includes a sloped bearing surface configured to bias a first lineal toward a second lineal about the longitudinal axis of the second lineal.

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.

Windows and secure corner assemblies are generally described. The windows may include a sash having stiles arranged on vertical sides thereof and rails arranged on horizontal sides thereof. Primary reinforcement members may be arranged within the stiles. Secure corner assemblies may be configured to be arranged within corners of the sash formed by intersections of the stiles and the rails. The secure corner assemblies may include at least one secondary reinforcement member arranged on an external surface of one of the rails, such as a top rail. A tilt mechanism may be configured to be coupled to a primary reinforcement member and the at least one secondary reinforcement member, thereby providing a continuous reinforcement connection around the window sash. Vinyl windows using corner assemblies according to some embodiments may have increased pressure ratings compared to vinyl windows that do not include such corner assemblies.