Toggle insert for receiving a toggle assembly in a steel curtain wall structure

Patent metadata

Field	Value
Publication number	US-11773588-B2
Application number	US-202117517196-A
Country	US
Kind code	B2
Filing date	Nov 2, 2021
Priority date	Nov 17, 2020
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A toggle insert for receiving a toggle assembly in a steel curtain wall structure is disclosed. The toggle insert is a self-leveling profile requiring no welding for fastening to steel curtain wall structure and further provides a screw tolerance of up to 1 inch for locating and fastening toggle screws during installation of glazing elements to the steel curtain wail structure. The toggle insert includes a horizontal section having a front portion, an intermediate portion and a bottom portion, wherein the front portion includes a central elongated opening measuring between 21 mm and 25 mm sandwiched on either sides by slotted screw race and a pair of threaded set screws for leveling into the slotted screw race that fixes the toggle insert by way of wedging into the steel curtain wall structure.

First claim

The invention claimed is:

1. A toggle insert for receiving a toggle assembly in a steel curtain wall structure, the toggle insert comprising:
a horizontal section having a front portion, an intermediate portion and a bottom portion, wherein the front portion comprises a central elongated opening measuring between 21 mm and 25 mm in length and sandwiched on either sides by a slotted screw race; and
a pair of threaded set screws for leveling into the slotted screw races that fixes the toggle insert by way of wedging into the steel curtain wall structure,

wherein the intermediate portion of the horizontal section is oblong having an internal angle ranging between 34 and 38 degrees.

2. The toggle insert as claimed in claim 1 , wherein the internal angle is 36 degrees.

3. The toggle insert as claimed in claim 1 , wherein the toggle insert is a self-levelling profile requiring no welding for fastening to the steel curtain wall structure.

4. The toggle insert as claimed in claim 1 , wherein the central elongated opening of the horizontal section provides a screw tolerance of up to 1 inch for locating and fastening screws during installation of glazing elements to the steel curtain wall structure.

5. The toggle insert 1 as claimed in claim 1 , wherein the horizontal section is a steel bar profile.

6. A glass curtain wall installation kit comprising:
steel support beams for mounting on an outer surface of a building to form a curtain wall substructure;
glazing elements having at least two parallel glazing bonded to one another and spaced apart by a spacer frame, a space external to said spacer frame between the two glazing filled with a sealing material;
toggle assemblies having a toggle, a plastic sleeve and a screw for securing the glazing elements to the steel support beams;
toggle inserts comprising a horizontal section having a front portion, an intermediate portion and bottom portion, wherein the front portion comprises a central elongated opening measuring between 21 mm and 25 mm in length and sandwiched on either sides by a slotted screw race; and a pair of threaded set screws for leveling into the slotted screw races and fixing the toggle insert to the steel support beams, wherein the intermediate portion of the horizontal section is oblong having an internal angle ranging between 34 and 38 degrees and wherein the toggle inserts are fixed by way of wedging to the steel support beams for receiving the toggle assemblies;
a gasket for overlaying the curtain wall substructure; and
a thermal acoustic material for application between adjacent glazing elements anchored to the steel support beams.

7. The glass curtain wall installation kit as claimed in claim 6 , wherein the steel support beams comprise a box shaped cross-section having a gasket race extending longitudinally along their length, wherein the gasket race has a narrow opening and a wider inner surface flanked on either sides by support plates.

8. The glass curtain wall installation kit as claimed in claim 7 , wherein the gasket race of the steel support beams is rectangular or circular or square in cross-section.

9. The glass curtain wall installation kit as claimed in claim 7 , wherein a shape of the horizontal section of the toggle insert is adapted to a shape of the gasket race.

10. The glass curtain wall installation kit as claimed in claims 6 , wherein the glazing elements further comprise U-shaped channel inserts set within the sealing material bonding the two glazings.

11. A method for assembling a curtain wall in a façade structure using the glass curtain wall installation kit according to claim 6 , said method comprising:
mounting steel support beams on the outer surface of the building to form the curtain wall substructure;
securing toggle inserts within a gasket race of the steel support beams involving:
dropping the toggle insert into the gasket race of the steel support beams such that the intermediate portion of the toggle insert abuts a neck of the gasket race;
rotating the toggle insert 90 degrees for the front portion to face away from the neck of the gasket race; and
screwing the pair of threaded set screws into the slotted screw race, wherein the screwing tightens the set screws forcing the toggle insert into the neck of the gasket race eliminating any welding action for securing the toggle insert to the steel support beams;
pressing the gasket into the neck of the gasket race such that the gasket is flush with the gasket race and support plates of the steel support beams;
securing the glazing elements on the curtain wall substructure using toggle assemblies, wherein the elongated opening in the horizontal section of the toggle insert provides a screw tolerance of 1 inch for securing the screw of the toggle assembly;
turning the toggle of the toggle assembly such that the toggle is placed within a U-shaped channel insert set in the glazing element thereby anchoring the glazing element to the steel support beams; and
applying the thermal acoustic material in the space between adjacent glazing elements to conceal underlying fixing components.

Assignees

• Saint Gobain

Inventors

• Rogers Brendan

Classifications

• E04B2/965 Primary

  Connections of mullions and transoms · CPC title

• E06B3/5481

  by means of discrete fixing elements, e.g. glazing clips, glaziers points · CPC title

• E04B2/967 Primary

  Details of the cross-section of the mullions or transoms (E04B2/965 takes precedence) · CPC title

• E06B3/5427

  the panes mounted flush with the surrounding frame or with the surrounding panes (E06B3/5436 takes precedence; supporting structures for curtain walls E04B2/885) · CPC title

• E06B3/6621

  with special provisions for fitting in window frames or to adjacent units; Separate edge protecting strips (E06B3/66347 takes precedence) · CPC title