CA1273556A - Extrusion crimping apparatus - Google Patents
Extrusion crimping apparatusInfo
- Publication number
- CA1273556A CA1273556A CA000595470A CA595470A CA1273556A CA 1273556 A CA1273556 A CA 1273556A CA 000595470 A CA000595470 A CA 000595470A CA 595470 A CA595470 A CA 595470A CA 1273556 A CA1273556 A CA 1273556A
- Authority
- CA
- Canada
- Prior art keywords
- insert
- pair
- extruded aluminum
- sections
- rollers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/273—Frames with special provision for insulation with prefabricated insulating elements held in position by deformation of portions of the metal frame members
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An extrusion crimping apparatus for inter-connecting a pair of extruded aluminum sections to an insert of thermanl break, wherein each of the pair of extruded aluminum sections includes a pair of flanges adapted to receive the insert therebetween. The apparatus comprises a pair of rollers mounted for receiving and pressing together the pair of extruded aluminum sections and the insert fed between opposing circumferential surfaces thereof. The surfaces of the rollers are of predetermined transverse width sufficient to overlie the flange portions and the insert on both sides such that the flanges clamp the insert therebetween. A plurality of protrusions project outwardly from the circumferential surfaces of the rollers for crimping the flanges to the insert thereby preventing longitudinal slippage between the extruded aluminum sections and the insert.
An extrusion crimping apparatus for inter-connecting a pair of extruded aluminum sections to an insert of thermanl break, wherein each of the pair of extruded aluminum sections includes a pair of flanges adapted to receive the insert therebetween. The apparatus comprises a pair of rollers mounted for receiving and pressing together the pair of extruded aluminum sections and the insert fed between opposing circumferential surfaces thereof. The surfaces of the rollers are of predetermined transverse width sufficient to overlie the flange portions and the insert on both sides such that the flanges clamp the insert therebetween. A plurality of protrusions project outwardly from the circumferential surfaces of the rollers for crimping the flanges to the insert thereby preventing longitudinal slippage between the extruded aluminum sections and the insert.
Description
~ 7~ 5~ ~
This invention relates in general to rolling machines, and more particularly to a combined rolling and crimping apparatus for manufacturing composite window structures from extruded aluminum sections.
Modern day composite windows often comprise a frame of thermally broken extruded aluminum members fastened together at the corners with screws, and a sash of extruded aluminum members with corners fitted with corner brackets, peened and sealed with silicone. Each sash normally rides on a pair of nylon rollers. A fixed window is normally laid in glazed with a bedding of butyl tape and extruded aluminum or vinyl snap-on stops are provided with a flexible vinyl spline on the interior.
~ullion sections of modern day composite windows are typically comprised of a pair of longitudinal extruded aluminum sections and an insert of thermal break sandwiched therebetween. The thermal break insert may consist of vinyl~ plastic or other suitable insulating matexial.
A well known method of assembling the mullion components involves feeding the pair of extruded aluminum sections position~d around the central insert between a pair of opposing circular or disc shaped rollers. The rollers bear down on opposites sides of the pair of extruded aluminum sections overlying the insert such that the respective extruded sections effectively clamp the insert forming a composite structure.
Modern day composite windows are required to be of sturdy construction capable of withstanding predesignated performance tests. Such tests include air leakage testing, water leakage testing, and thermal performance testing to name but a few.
One particularly rigorous test is known as wind load resistance and involves subjecting the window 7;35~t~
unit to uniform loads using both positive and negative pressures as specified via a pr~designated safety standard (egO CAN 3 - A440 -M84). Deflection measurements are taken at the center of the interlock style of the innermost sash and also at the mid-span of the horiz~ntal mullion. The maximum allowable sash deflection is typically 1/50 of the span up to a maximum of 25 millimeters while the maximum allowable mullion deflection is approximately 1/175 of the span up to an absolute maximum of 20 millimeters.
One area of common failure in wind load resistance testing occurs during mullion deflection measurement. In particular, it has been found that under standard uniform load test conditions, prior art extruded aluminum sections of the mullion have been found to overcome their respective coefficients of static friction relative to the insert of thermal break such that the aluminum sections slip relative to the insert.
According to the aforementioned prior art apparatus and method of assembling mullion components, the coefficient o~ friction between the central insert and the extruded aluminum sections is often sufficiently low as to be overcome by normal uniform test loads applied during mullion defle~tion testing with the result that the extruded sections slip relative to the insert, as discussed above.
According to the present invention, a method and apparatus provided for crimping the extruded aluminum sections to the insert, thereby increasing the coefficient of static friction therebetween for preventing longitudinal slippage under test loads and actual operating conditions.
In accordance with one aspect of the present invention there is provided apparatus for inter-connecting a pair of longitudinal sections to an insert ~ 5 ~
section, said pair of longitudinal sections each having flanges adapted to receive said insert section therewithin, said apparatus comprising:
a) a pair of rollers mounted for receiving and pressing together said pair of longitudinal sections and said insert section fed between opposing circumferential surfaces thereof;
b) said surfaces being of predetermined transverse width sufficient to overlie said flange portions and said insert section on both sides such that said flanges clamp said insert section therebetween; and c) a plurality of protrusions projecting outwardly from said circumferential surfaces for crimping said flanges to said insert section, thereby preventing longitudinal slippage between said pair of longitudinal sections and said insert sections.
In accordance with another aspect of the present invention there is provided in a rolling machine for connecting a pair of extruded aluminum sections to a thermal break insert in a window construction; said pair of extruded aluminum sections each having flange portions adapted to receive said insert therewithin;
said rolling machine comprising a pair of rollers adapted for receiving and clamping together said pair of extruded aluminum sections and said insert fed therebetween; the improvement comprising a plurality of protrusions extending outwardly from opposing circumferential surfaces of said rollers for crimping said flange portions to said insert, thereby increasing wind load resistance of said window construction.
~'7~ 5~
In accordance with a further aspect of the present invention there is provided a method of connecting a pair of extruded aluminum sections to a insert in a window construction, said pair of extruded aluminum sections each having flange portions adapted to receive said insert therewithin, comprising the steps of:
a) positioning said insert between said flange portions;
10b) feeding said pair of extruded aluminum sections and said insert between a pair of rollers:
c) applying pressure via said pair of rollers to opposite sides of said flange 15portions for clamping said insert between said flange portions; and d) crimping said flange portions into said insert via a plurality of protrusions extending outwardly from opposing 20circumferential surfaces of s~id rollers.
In accordance with yet another aspect of the present invention there is provided a pair of extruded aluminum sections connected to a thermal break insert, said pair o~ aluminum sections comprising flange portions at least partly surrounding and clamping opposite sides of said insert; and a regular pattern of deformations of said flange portion embedded into said insert for forming a crimped connection of said pair of extruded aluminum sections to said vinyl insert.
A preferred embodiment of the present invention will be described in greater detail below with reference to the following drawings, in which;
Figure 1 is a perspective view of a modified rolling machine in accordance with the present invention;
Figure 2 is an end perspective view of a pair of extruded aluminum sections for connection to a thermal break insert in accordance with the principles of the present invention; and Figure 3 is a perspective view of the rolling machine of Figure 1 for inter-connecting the extruded aluminum sections and insert illustrated in Figure 2 in accoxdance with the principles of the present invention.
Turning to Figure 1, a rolling machine 1 is shown having a pair of rotating axles 3 and 5 mounted in journals for rotation within support blocks 7 and 9.
According to the prior art, a pair of d~sc shaped rollers 11 and 13 are mounted for rotation on respective ones of the axles 3 and 5 for receiving a pair of extruded aluminum sections and thermal break insert which are manually fed between opposing circumferential surfaces of the rollers 11 and 13.
Turning briefly to Figure 2, the extruded aluminum sections 15 and 17 are shown comprising respective flange portions 19, 21 and 23, 25 adapted to fit co-operatively into corresponding indentations within the insert of thermal break 27.
The width of the circumferential surfaces of rollers 11 and 13 is made sufficient to overlie the exposed upper and lower portions of insert 27 as well as the flange portions 19, 21, 23 and 25. Thus, in accordance with prior art techniques, the rollers 11 and 13 press down on opposite sides of the insert and 30 overlying flanges such that the flanges 19, 21, 23 and 25 effectively clamp on to the insert 27 resulting in a composite mullion structure.
According to the present invention, modified rollers 29 and 31 are provided with a plurality of small wedge shaped protrusions 33 arranged in two parallel ~ ~'7~'j5~j rows in a regular repeating pattern around the circumferential surface of the rollers.
With reference to Figure 3, the composite mullion structure is shown in accordance with the modified rollers of the present invention. In particular, the protrusions 33 result in a series of regular deformations or indentations 35 in the flange portions 19, ~1, 23 and 25 of the extrude~ aluminum sections for crimping the insert 27. The mullion section so produced is characterized by high coefficient of friction between the extruded aluminum sections and insert relative to prior art techniques, thereby preventing slippage of the extruded aluminum sections 15 and 17 relative to the insert 27 under test load conditions as well as actual operating conditions.
Other modifications or variations in the present invention are contemplated. In particular, the protrusions 33 may be of various shapes and may be oriented at various angles to the axles 3 and 5.
However, it has been found that orienting the wedge shaped projections 33 at an acute angle relative to the axles 3 and 5 results in greater lateral gripping of the extruded aluminum sections 15 and 17 to the insert 27 in addition to the increased longitudinal strength.
All such embodiments and variations are believed to be within the sphere and scope of the present invention as defined by the claims appended hereto.
This invention relates in general to rolling machines, and more particularly to a combined rolling and crimping apparatus for manufacturing composite window structures from extruded aluminum sections.
Modern day composite windows often comprise a frame of thermally broken extruded aluminum members fastened together at the corners with screws, and a sash of extruded aluminum members with corners fitted with corner brackets, peened and sealed with silicone. Each sash normally rides on a pair of nylon rollers. A fixed window is normally laid in glazed with a bedding of butyl tape and extruded aluminum or vinyl snap-on stops are provided with a flexible vinyl spline on the interior.
~ullion sections of modern day composite windows are typically comprised of a pair of longitudinal extruded aluminum sections and an insert of thermal break sandwiched therebetween. The thermal break insert may consist of vinyl~ plastic or other suitable insulating matexial.
A well known method of assembling the mullion components involves feeding the pair of extruded aluminum sections position~d around the central insert between a pair of opposing circular or disc shaped rollers. The rollers bear down on opposites sides of the pair of extruded aluminum sections overlying the insert such that the respective extruded sections effectively clamp the insert forming a composite structure.
Modern day composite windows are required to be of sturdy construction capable of withstanding predesignated performance tests. Such tests include air leakage testing, water leakage testing, and thermal performance testing to name but a few.
One particularly rigorous test is known as wind load resistance and involves subjecting the window 7;35~t~
unit to uniform loads using both positive and negative pressures as specified via a pr~designated safety standard (egO CAN 3 - A440 -M84). Deflection measurements are taken at the center of the interlock style of the innermost sash and also at the mid-span of the horiz~ntal mullion. The maximum allowable sash deflection is typically 1/50 of the span up to a maximum of 25 millimeters while the maximum allowable mullion deflection is approximately 1/175 of the span up to an absolute maximum of 20 millimeters.
One area of common failure in wind load resistance testing occurs during mullion deflection measurement. In particular, it has been found that under standard uniform load test conditions, prior art extruded aluminum sections of the mullion have been found to overcome their respective coefficients of static friction relative to the insert of thermal break such that the aluminum sections slip relative to the insert.
According to the aforementioned prior art apparatus and method of assembling mullion components, the coefficient o~ friction between the central insert and the extruded aluminum sections is often sufficiently low as to be overcome by normal uniform test loads applied during mullion defle~tion testing with the result that the extruded sections slip relative to the insert, as discussed above.
According to the present invention, a method and apparatus provided for crimping the extruded aluminum sections to the insert, thereby increasing the coefficient of static friction therebetween for preventing longitudinal slippage under test loads and actual operating conditions.
In accordance with one aspect of the present invention there is provided apparatus for inter-connecting a pair of longitudinal sections to an insert ~ 5 ~
section, said pair of longitudinal sections each having flanges adapted to receive said insert section therewithin, said apparatus comprising:
a) a pair of rollers mounted for receiving and pressing together said pair of longitudinal sections and said insert section fed between opposing circumferential surfaces thereof;
b) said surfaces being of predetermined transverse width sufficient to overlie said flange portions and said insert section on both sides such that said flanges clamp said insert section therebetween; and c) a plurality of protrusions projecting outwardly from said circumferential surfaces for crimping said flanges to said insert section, thereby preventing longitudinal slippage between said pair of longitudinal sections and said insert sections.
In accordance with another aspect of the present invention there is provided in a rolling machine for connecting a pair of extruded aluminum sections to a thermal break insert in a window construction; said pair of extruded aluminum sections each having flange portions adapted to receive said insert therewithin;
said rolling machine comprising a pair of rollers adapted for receiving and clamping together said pair of extruded aluminum sections and said insert fed therebetween; the improvement comprising a plurality of protrusions extending outwardly from opposing circumferential surfaces of said rollers for crimping said flange portions to said insert, thereby increasing wind load resistance of said window construction.
~'7~ 5~
In accordance with a further aspect of the present invention there is provided a method of connecting a pair of extruded aluminum sections to a insert in a window construction, said pair of extruded aluminum sections each having flange portions adapted to receive said insert therewithin, comprising the steps of:
a) positioning said insert between said flange portions;
10b) feeding said pair of extruded aluminum sections and said insert between a pair of rollers:
c) applying pressure via said pair of rollers to opposite sides of said flange 15portions for clamping said insert between said flange portions; and d) crimping said flange portions into said insert via a plurality of protrusions extending outwardly from opposing 20circumferential surfaces of s~id rollers.
In accordance with yet another aspect of the present invention there is provided a pair of extruded aluminum sections connected to a thermal break insert, said pair o~ aluminum sections comprising flange portions at least partly surrounding and clamping opposite sides of said insert; and a regular pattern of deformations of said flange portion embedded into said insert for forming a crimped connection of said pair of extruded aluminum sections to said vinyl insert.
A preferred embodiment of the present invention will be described in greater detail below with reference to the following drawings, in which;
Figure 1 is a perspective view of a modified rolling machine in accordance with the present invention;
Figure 2 is an end perspective view of a pair of extruded aluminum sections for connection to a thermal break insert in accordance with the principles of the present invention; and Figure 3 is a perspective view of the rolling machine of Figure 1 for inter-connecting the extruded aluminum sections and insert illustrated in Figure 2 in accoxdance with the principles of the present invention.
Turning to Figure 1, a rolling machine 1 is shown having a pair of rotating axles 3 and 5 mounted in journals for rotation within support blocks 7 and 9.
According to the prior art, a pair of d~sc shaped rollers 11 and 13 are mounted for rotation on respective ones of the axles 3 and 5 for receiving a pair of extruded aluminum sections and thermal break insert which are manually fed between opposing circumferential surfaces of the rollers 11 and 13.
Turning briefly to Figure 2, the extruded aluminum sections 15 and 17 are shown comprising respective flange portions 19, 21 and 23, 25 adapted to fit co-operatively into corresponding indentations within the insert of thermal break 27.
The width of the circumferential surfaces of rollers 11 and 13 is made sufficient to overlie the exposed upper and lower portions of insert 27 as well as the flange portions 19, 21, 23 and 25. Thus, in accordance with prior art techniques, the rollers 11 and 13 press down on opposite sides of the insert and 30 overlying flanges such that the flanges 19, 21, 23 and 25 effectively clamp on to the insert 27 resulting in a composite mullion structure.
According to the present invention, modified rollers 29 and 31 are provided with a plurality of small wedge shaped protrusions 33 arranged in two parallel ~ ~'7~'j5~j rows in a regular repeating pattern around the circumferential surface of the rollers.
With reference to Figure 3, the composite mullion structure is shown in accordance with the modified rollers of the present invention. In particular, the protrusions 33 result in a series of regular deformations or indentations 35 in the flange portions 19, ~1, 23 and 25 of the extrude~ aluminum sections for crimping the insert 27. The mullion section so produced is characterized by high coefficient of friction between the extruded aluminum sections and insert relative to prior art techniques, thereby preventing slippage of the extruded aluminum sections 15 and 17 relative to the insert 27 under test load conditions as well as actual operating conditions.
Other modifications or variations in the present invention are contemplated. In particular, the protrusions 33 may be of various shapes and may be oriented at various angles to the axles 3 and 5.
However, it has been found that orienting the wedge shaped projections 33 at an acute angle relative to the axles 3 and 5 results in greater lateral gripping of the extruded aluminum sections 15 and 17 to the insert 27 in addition to the increased longitudinal strength.
All such embodiments and variations are believed to be within the sphere and scope of the present invention as defined by the claims appended hereto.
Claims (10)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for interconnecting a pair of longitudinal sections to an insert section, said pair of longitudinal sections each having flanges adapted to receive said insert section therewithin, said apparatus comprising:
a) a pair of rollers mounted for receiving and pressing together said pair of longitudinal sections and said insert section fed between opposing circumferential surfaces thereof;
b) said surfaces being of predetermined transverse width sufficient to overlie said flange portions and said insert section on both sides such that said flanges clamp said insert section therebetween; and c) a plurality of protrusions projecting outwardly from said circumferential surfaces for crimping said flanges to said insert section, thereby preventing longitudinal slippage between said pair of longitudinal sections and said insert sections.
a) a pair of rollers mounted for receiving and pressing together said pair of longitudinal sections and said insert section fed between opposing circumferential surfaces thereof;
b) said surfaces being of predetermined transverse width sufficient to overlie said flange portions and said insert section on both sides such that said flanges clamp said insert section therebetween; and c) a plurality of protrusions projecting outwardly from said circumferential surfaces for crimping said flanges to said insert section, thereby preventing longitudinal slippage between said pair of longitudinal sections and said insert sections.
2. Apparatus as defined in Claim 1, wherein said protrusions on each said pair of rollers comprise first and second rows of wedges extending around said circumferential surface for deforming respective first and second ones of flanges into said insert section.
3. Apparatus as defined in Claim 2, wherein successive ones of said wedges are arranged in parallel.
4. In a rolling machine for connecting a pair of extruded aluminum sections to a thermal break insert in a window construction, said pair of extruded aluminum sections each having flange portions adapted to receive said insert therewithin, said rolling machine comprising a pair of rollers adapted for receiving and clamping together said pair of extruded aluminum sections and said insert; the improvement comprising a plurality of protrusions extending outwardly from opposing circumferential surfaces of said rollers for crimping said flange portions to said insert, thereby increasing wind load resistance of said window construction.
5. A rolling machine as defined by Claim 4, wherein said protrusions on each said pair of rollers comprise first and second rows of wedges extending around said circumferential surface for deforming respective first and second ones of said flange portions into said insert.
6. A rolling machine as defined by Claim 5, wherein successive ones of said wedges are arranged in parallel.
7. A method of connecting a pair of extruded aluminum sections to a thermal break insert in a window construction, said pair of extruded aluminum sections each having flange portions adapted to receive said insert therewithin, comprising the steps of:
a) positioning said insert between said flange portions;
b) feeding said pair of extruded aluminum sections and said insert between a pair of rollers;
c) applying pressure via said pair of rollers to opposite sides of said flange portions for clamping said insert between said flange portions; and d) crimping said flange portions into said insert via a plurality of protrusions extending outwardly from opposing circumferential surfaces of said rollers.
a) positioning said insert between said flange portions;
b) feeding said pair of extruded aluminum sections and said insert between a pair of rollers;
c) applying pressure via said pair of rollers to opposite sides of said flange portions for clamping said insert between said flange portions; and d) crimping said flange portions into said insert via a plurality of protrusions extending outwardly from opposing circumferential surfaces of said rollers.
8. A pair of extruded aluminum sections for connection to a thermal break insert comprising;
a) flange portions of each said pair of extruded aluminum sections at least partly surrounding and clamping opposite sides of said insert; and b) a regular pattern of deformations of said flange portions embedded into said insert for forming a crimped connection of said pair of extruded aluminum sections to said insert.
a) flange portions of each said pair of extruded aluminum sections at least partly surrounding and clamping opposite sides of said insert; and b) a regular pattern of deformations of said flange portions embedded into said insert for forming a crimped connection of said pair of extruded aluminum sections to said insert.
9. A pair of extruded aluminum sections as defined in by Claim 8, wherein said regular pattern of deformations comprises a pair of parallel rows of inverted wedge-shaped indentations.
10. A pair of extruded aluminum sections as defined in Claim 9, wherein said indentations are oriented at an acute angle to the axis of rotation of said rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000595470A CA1273556A (en) | 1989-04-11 | 1989-04-11 | Extrusion crimping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000595470A CA1273556A (en) | 1989-04-11 | 1989-04-11 | Extrusion crimping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1273556A true CA1273556A (en) | 1990-09-04 |
Family
ID=4139844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000595470A Expired - Fee Related CA1273556A (en) | 1989-04-11 | 1989-04-11 | Extrusion crimping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1273556A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2366489A3 (en) * | 2010-03-15 | 2011-10-26 | Alcoa Aluminium Deutschland, Inc. | Device for pressing in insulating strips |
-
1989
- 1989-04-11 CA CA000595470A patent/CA1273556A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2366489A3 (en) * | 2010-03-15 | 2011-10-26 | Alcoa Aluminium Deutschland, Inc. | Device for pressing in insulating strips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |