US 2019/0284866 A1 · Knurling Apparatus and Methods for Architectural Assemblies

Abstract

A composite architectural frame section with subcomponents that meet functional, strength and thermal isolation requirements is assembled using knurling and crimping operations as joining procedures. When properly designed the knurling and subcomponent geometries with proper crimping operations result in an optimal shearing strength between critical subcomponents, thus maximizing the structural performance aspect of the frame section. Various embodiments of this design address requirements for subcomponent features such as: hammer and anvil tips, orientation of knurled and crimped surfaces, design of the knurling wheel components, and the introduction of alternate surface topographies to additional regions of these contacting frame subcomponents. These embodiments serve to maximize the portion of available interface contact surfaces and their friction that can bear shearing forces and, thus, add to the overall shear strength of the frame section.

Claims18

Dependent claims

A composite member, comprising:

an interior metal extrusion with a first recess therein extending along at least a portion of a length thereof;
an exterior metal extrusion with a second recess therein extending along at least a portion of a length thereof;
a thermal break with a thermal conductivity lower than a thermal conductivity of the interior metal extrusion and the exterior metal extrusion inserted there between and connected thereto;
the thermal break having a plurality of beads extending along at least a portion of a length thereof, a first bead of the plurality of beads extending into the first recess and a second bead of the plurality of beads extending into the second recess, the interior and the exterior extrusions crimped proximate the first recess and the second recess, respectively, to hold the first bead and the second bead therein, respectively, the first recess and the second recess being knurled therein along at least a portion of a length thereof in a knurl pattern of peaks and valleys having a wavelength<0.040 inches, the peaks impressing at least partially into the first bead and the second bead.

1 more element

Dependencies are inferred from the claim text.

Knurling Apparatus and Methods for Architectural Assemblies

Life of this patent

Knurling Apparatus and Methods for Architectural Assemblies

Life of this patent

Abstract

Claims18