CA2029134C - Glazing element - Google Patents
Glazing elementInfo
- Publication number
- CA2029134C CA2029134C CA002029134A CA2029134A CA2029134C CA 2029134 C CA2029134 C CA 2029134C CA 002029134 A CA002029134 A CA 002029134A CA 2029134 A CA2029134 A CA 2029134A CA 2029134 C CA2029134 C CA 2029134C
- Authority
- CA
- Canada
- Prior art keywords
- film
- tension
- profile
- glazing element
- spring elements
- 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
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
- E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
Abstract
The glazing element is provided with at least one tensioned insulation film (2) between two panes (1).
Spring elements (3) secured to a tension profile (4) serve to place the film under tension. The spring elements are distributed over the entire film periphery.
They are also elastically bendable in all directions transverse to their elongation, and are secured with their longitudinal direction essentially perpendicular to the film plane with one end at the film and the other end secured to the tension profile. In this manner, the spring elements can elastically follow relative shape alterations of the film with respect to the tension profile by bending transversely to their longitudinal direction. In this novel construction, tension forces-are distributed in all directions in the insulation film. No friction forces need to be overcome in order to tension the film. The entire tension taken up by the film support is so small that it is possible simply to adhere the tension profile inwardly to the panes.
Simple helical coils can be used as the spring elements.
Spring elements (3) secured to a tension profile (4) serve to place the film under tension. The spring elements are distributed over the entire film periphery.
They are also elastically bendable in all directions transverse to their elongation, and are secured with their longitudinal direction essentially perpendicular to the film plane with one end at the film and the other end secured to the tension profile. In this manner, the spring elements can elastically follow relative shape alterations of the film with respect to the tension profile by bending transversely to their longitudinal direction. In this novel construction, tension forces-are distributed in all directions in the insulation film. No friction forces need to be overcome in order to tension the film. The entire tension taken up by the film support is so small that it is possible simply to adhere the tension profile inwardly to the panes.
Simple helical coils can be used as the spring elements.
Description
20~9134 GLAZING ~T-~MFNT
TECHNI ~T- AREA
This invention relates to a glazing element with at least one insulation film stretched out between two panes, in which spring elements secured to a tension profile are used to stretch the film, the spring elements being longitudinally extended between two ends.
STATE OF THE ART
A glazing element of this kind is, for example, known from the Belgian patent No. 86727. In this known element, a film is looped around a bar in the lower portion~of the element. Its two free end edges are secured to the frame in the upper portion of the element, in parallel, spaced relation to each other.
The two halves of the film are held under tension by spring elements in the form of helical compression springs. The latter press at one end inwardly against a rectangular tension profile, and press at the other end against the heads of screws which on the one hand are screwed through the film into the bar, and on the other hand project into the tension profile. The just mentioned screws extend centrally through the compression springs. The longit~l~in~l or axial diréction of the springs corresponds to the direction of the tension on th`e film. In any event, temperature-dependent length changes in the films or film halves can be balanced out by the known construction.
Simultaneously appearing width changes cannot be compensated, nor can an unequal alteration of the two films.
In the CH patent 653404, there is described a self-supporting insulation element with an insulation film for insertion between the panes of a compound window, in which length and width alterations in the film are taken into account. Here the film is biaxially stretched on a rectangular tension frame so as to be movable relative 29291 3~
to the frame. The side portions of the tension frame are pre-bent to one side in the unloaded condition corresponding to the desired film tension. The movability of the film with respect to the tension frame comes about through a discontinuous attachment of the film to four slip-bands, which are flexible in the longitudinal direction of the side of the frame, and are displaceably guided longitudinally with respect to the side of the frame. Because of the friction between the slip-bands and the guiding means on the tension frame, this construction results in an increase in the total tension which is supported by the tension frame. In order to tension the film and maintain it in taut condition, this friction must be continuously overcome.
In order that the reaction forces arising from the tension of the film do not affect the edge joint between the tension frame and the two panes, the edge joint incorporating adhesive and serving the purposes of sealing, the tension frame is constructed in a self-supporting manner.DESCRIPTION OF THE INVENTION
The aim of the invention is to provide a glazing element of the previously described kind, in-which the insulation film is maintained crease-free under any kind of shape alterations, particu}arly those arising from thermal expansion, and even differential thermal ~pAn~ion between the film and the frame, throughout a broad temperature range of at least -40C to ~60~, the glazin~ element being simpler in its construction and capable of manufacture with less material and a lower production cost.
According to the invention, this aim is attained in a glazing element having the characteristics of claim 1.
Accordingly, in the glazing element according to the invention, the spring elements are distributed over the entire film periphery. They are elastically bendable in 3 2029 ~ 34 all directions transverse to their longitudin~l extent, and are disposed with the longitlldin~l extent substantially perpendicular to the plane of the film, with one end secured to the film and the other end secured to the tension profile, this being done in such a way that the spring elements can el~tically follow relative shape changes 5 in the film with respect to the tension profile by bending transversely to their longit~-din~l direction.
More specifically, this invention provides a glazing element with at least one insulation film stretched between two panes, in which spring elements supported from a tension profile are used to tension the film, the spring elements being elongate 10 between two ends, characterized in that the spring elements are distributed over the entire film periphery, and are elastically bendable in all directions Llal~v~l~e to their elongation, the spring elements having their elongation direction essenhally perpendicular to the film plane with their one end at the film and their other end secured to the tension profile in such a way that they can elastically follow relative 15 shape alterations of the film with respect to the tension profile by bending lldl~,lsely to their elongation direction.
In the new construction, tension forces are applied in a distributed manner on all edges of the insulation film. The tensioning does not require any friction forces to be overcome. The entire tension supported by the film mounting can therefore be 20 considerably smaller than with the known construction. It is not nPcess~ry toconstruct a self-supporting frame. By means of the spring elements, m~nllf~ctllring tolerances are to a large extent autom~tir~lly bal~nred. In a plef~lled embodiment of the invention, the span profiles are directly adhered to the inside of the panes.
Relatively simple tension profiles can be used, and cheap helical springs can be25 utilized as spring elements.
Further advantages and le~lelllents of the invention are characterized in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in greater detail below utili7ing an example 30 embodiment illustrated in the attached drawing. The single figure in the drawing is a cross-section of the lower portion of a glazing element with two similarly tensioned insulation films, constructed in accordance with the invention. Where portions are 3a identical on both sides of the mid-plane due to the symmetry of the construction about the mid-plane, only one such portion is provided with a numeral.
HOW TO CARRY OUT THE INVENTION
-In the drawing the numeral 1 identifies two flat glass panes parallel to each other. Between the panes 1 there are provided two insulation films 2, also parallel to each other and parallel to the panes. Helical springs 3 serve to support and tension the films 2. The helical springs are oriented, in the sense of their axial elongation between their two ends, essentially perpendicular to the plane of the films 2, and are anchored at one end (foot portion) in tension profiles 4. At the other ends (head portion) they are secured to the respective insulation films 2 in the edge zones thereof. The tension profiles 4 have flat side surfaces 4.1 where they are adhered to the inside of the panes 1. By means of a separation profile 5, the tension profiles are held at a uniform spacing.
Exteriorly (below in the drawing) the spacing profile 5 has a flat outer surface 5.1, of which the width substantially spans across the space between the panes 1, and a sealing band 6 is applied to the outer surface 5.1 as a vapour barrier. In the spacing profile 5 there is formed a longitudinal chamber 5.2 which is somewhat trapezoidal in cross-section and is filled with a drying agent, the longitll~in~l chamber 5.2 being in communication with the interior window space through small openings 5.3.
Weld-caps 3.1 serve to connect the heads of the helical springs 3 with the insulation films 2j the weld-caps 3.1 being constituted by a material which is fusible~-with the-film material, the weld-caps 3.1 further being inserted in the head ends of the helical springs 3. The insulation films 2 are spot-welded to the weld-caps 3.1. The turns of the coil springs 3 lie continuously at least partly in contact with each other.
Thus they are not compressible under pressure, and do not deflect during application of the welding contact, for example, using an automatic ultrasonic spot-welder.
~029134 -What cannot be seen in the sectional drawing is the distribution of a plurality of helical springs 3 around the entire periphery of the insulation films 2. The helical springs 3 can be provided either at equal spacings, or with an increasingly closer spacing adjacent the corner regions. With the latter there arises a more advantageous tension distribution in the film surface than is attained with equal spacing. A
suitable average spacing between helical springs- for a polyester film with a thickness of 75 micrometers is approximately 5 cm.
The length of the helical springs 3 is roughly three times their diameter.
In the tension profiles 4, the helical springs 3 are anchored in a longitudinal groove 4.2 with undercut flanks. For this purpose, the last turn in the foot portion of the helical springs is somewhat enlarged with respect to the remaining turns, and the enlarged turn locks itself into the undercuts of the longitudinal groove 4.2. By this kind of securement, the foot portion end of the helical springs 3 is mechanically secured to the tension profiles 4, while the opposing head-portion end, secured to the insulation film, is freely movable in all directions. The helical springs 3 can thus follow and/or compensate virtually all shape alterations of the insulation films 2 with respect to the tension profiles 4.
As an example, aluminum can be used as the material for the tension profile. However, the use of plastic is of advantage due to its significantly smaller thermoconductivity.
As can be clearly seen in the drawing, the helical springs 3 are bent transversely with respect to their longitudinal extension, because of the necessAry pre-stressing of the insulation film 2. In order that thesprings 3 can be situated roughly perpendicular to the ~2~34 -films 2 r they are secured into the tension profiles 4 in a somewhat angulated manner with respeot to the planes of the films.
The turns of the helical springs 3, due to the spring being bent transversely to their longitudinal extent, are partially raised or separated from one another, and exhibit, at the inside edge of the bend, essentially only point contact with each other.
Therefore, lateral form alterations of the insulation films 2 in the longitudinal direction of the tension profile result only in frictionless turning- or tilting-movements of the individual turns about these point contacts.
The forward edges 4.3 of the illustrated leg flanges 4.4 of the tension profiles 4 serve to clearly-fix the positions of the film planes. The connection locations between the insulation films 2 and the helical springs 3 are somewhat rearwardly offset with respect to these edges 4.3.
The side surfaces 4.1 of the tension profile 4, used as attachment surfaces, are formed with a relatively large surface in order to ensure a stable adhesion. A suitable adhesive is, for example, an acrylate contact adhesive, which can be applied to the flat side surfaces 4.1 of the tension profile 4 in theform of a mounting adhesive band provided with a protective strip, prior to the actual assembly of the adhesive joint.
The thickness, the elasticity and the creep characteristics of the adhesive layer are so selected that the layer is able to elastically absorb shear forces which are caused by transient unequal thermal expansions of the panes and the tension profile, or by corresponding mechAnical shocks. On the other hand, the adhesive layer does not exhibit any creep under the effect of the latent foil tension. Preferably, the -thickness of the adhesive layer corresponds roughly to the maximum expected relative displacement between the panes and the tension profile.
The possibility of providing the connection between the tension profiles 4 and the panes 1 as a load-supporting joint is a direct consequence of the use of helical springs 3 for tensioning the films 2 in the described manner, because in this manner practically no friction forces need to be overcome in tensioning the films. Because of the low overall tension, it is also not necessary to construct the tension profiles 4 as a load-bearing tension frame. It is even possible to combine several tension profiles around the periphery of the insulation films without direct connection with each other and with equalization gaps between pairs of adjacent ends. An embodiment for a rectangular window which is advantageous from a sealing point of view, includes the combination of two U-shaped bent tension profiles, because the abutment locations between them occur at two longitudinal sides of the rectangular section, and not at the corners where sealing considerations are critical.
The spacing profile 5 is attached to both tension profiles 4 in the manner of a tongue and groove joint, - 25 in which spring flanges 5.5 prevent the independent release of the connection.
For appearance reasons inter alia, the leg flanges 4.4 of the tension profiles, and the upper wall of the longitudinal chamber 5.2 of the spacing profile 5 facing the interior of the glazing element, are provided with flat surfaces at the same height and with small mutual spacing. Between them there is left only a small gap for the passage of the insulation films 2.
The sealing band 6 is a band of rust-proof (austenitic) stainless steel with a thickness of 0.05 mm. A butyl adhesive that softens at high temperature ~0291~4 -for adhering the sealing band between the panes. In contradistinction to the adhesive used for adhering the tension profiles, the butyl adhesive does not need to resist any forces. In the edge regions adjacent the panes, the configuration of the spacing profile and the tension profiles provides longitudinal grooves 7, as is clearly seen in the drawing. The adhesive can flow into these longitudinal grooves 7, and can tightly seal the gaps between the spacing profile 5 and the tension profiles 4, as well as between the latter and the panes.
Aside from these edge regions, no adhesive connection is provided between the spacing profile 5 and the sealing band 6.
The above described glazing element is notable for its simple construction. Above all, the helical springs are markedly cost-advantageous parts. The window can be manufactured with low construction costs and in only a few working steps that can be automated.
Naturally, changes are possible with respect to the described example embodiment. For example, one of the two insulation films 2 can be omitted. Instead of helical springs it is possible to use other spring elements with similar spring characteristics, for example a flat spring twisted together through 90, or resilient tongues formed directly on the tension profile. Instead of using welding, the films can be connected to the helical springs or other employed spring elements utilizing adhesive.
TECHNI ~T- AREA
This invention relates to a glazing element with at least one insulation film stretched out between two panes, in which spring elements secured to a tension profile are used to stretch the film, the spring elements being longitudinally extended between two ends.
STATE OF THE ART
A glazing element of this kind is, for example, known from the Belgian patent No. 86727. In this known element, a film is looped around a bar in the lower portion~of the element. Its two free end edges are secured to the frame in the upper portion of the element, in parallel, spaced relation to each other.
The two halves of the film are held under tension by spring elements in the form of helical compression springs. The latter press at one end inwardly against a rectangular tension profile, and press at the other end against the heads of screws which on the one hand are screwed through the film into the bar, and on the other hand project into the tension profile. The just mentioned screws extend centrally through the compression springs. The longit~l~in~l or axial diréction of the springs corresponds to the direction of the tension on th`e film. In any event, temperature-dependent length changes in the films or film halves can be balanced out by the known construction.
Simultaneously appearing width changes cannot be compensated, nor can an unequal alteration of the two films.
In the CH patent 653404, there is described a self-supporting insulation element with an insulation film for insertion between the panes of a compound window, in which length and width alterations in the film are taken into account. Here the film is biaxially stretched on a rectangular tension frame so as to be movable relative 29291 3~
to the frame. The side portions of the tension frame are pre-bent to one side in the unloaded condition corresponding to the desired film tension. The movability of the film with respect to the tension frame comes about through a discontinuous attachment of the film to four slip-bands, which are flexible in the longitudinal direction of the side of the frame, and are displaceably guided longitudinally with respect to the side of the frame. Because of the friction between the slip-bands and the guiding means on the tension frame, this construction results in an increase in the total tension which is supported by the tension frame. In order to tension the film and maintain it in taut condition, this friction must be continuously overcome.
In order that the reaction forces arising from the tension of the film do not affect the edge joint between the tension frame and the two panes, the edge joint incorporating adhesive and serving the purposes of sealing, the tension frame is constructed in a self-supporting manner.DESCRIPTION OF THE INVENTION
The aim of the invention is to provide a glazing element of the previously described kind, in-which the insulation film is maintained crease-free under any kind of shape alterations, particu}arly those arising from thermal expansion, and even differential thermal ~pAn~ion between the film and the frame, throughout a broad temperature range of at least -40C to ~60~, the glazin~ element being simpler in its construction and capable of manufacture with less material and a lower production cost.
According to the invention, this aim is attained in a glazing element having the characteristics of claim 1.
Accordingly, in the glazing element according to the invention, the spring elements are distributed over the entire film periphery. They are elastically bendable in 3 2029 ~ 34 all directions transverse to their longitudin~l extent, and are disposed with the longitlldin~l extent substantially perpendicular to the plane of the film, with one end secured to the film and the other end secured to the tension profile, this being done in such a way that the spring elements can el~tically follow relative shape changes 5 in the film with respect to the tension profile by bending transversely to their longit~-din~l direction.
More specifically, this invention provides a glazing element with at least one insulation film stretched between two panes, in which spring elements supported from a tension profile are used to tension the film, the spring elements being elongate 10 between two ends, characterized in that the spring elements are distributed over the entire film periphery, and are elastically bendable in all directions Llal~v~l~e to their elongation, the spring elements having their elongation direction essenhally perpendicular to the film plane with their one end at the film and their other end secured to the tension profile in such a way that they can elastically follow relative 15 shape alterations of the film with respect to the tension profile by bending lldl~,lsely to their elongation direction.
In the new construction, tension forces are applied in a distributed manner on all edges of the insulation film. The tensioning does not require any friction forces to be overcome. The entire tension supported by the film mounting can therefore be 20 considerably smaller than with the known construction. It is not nPcess~ry toconstruct a self-supporting frame. By means of the spring elements, m~nllf~ctllring tolerances are to a large extent autom~tir~lly bal~nred. In a plef~lled embodiment of the invention, the span profiles are directly adhered to the inside of the panes.
Relatively simple tension profiles can be used, and cheap helical springs can be25 utilized as spring elements.
Further advantages and le~lelllents of the invention are characterized in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in greater detail below utili7ing an example 30 embodiment illustrated in the attached drawing. The single figure in the drawing is a cross-section of the lower portion of a glazing element with two similarly tensioned insulation films, constructed in accordance with the invention. Where portions are 3a identical on both sides of the mid-plane due to the symmetry of the construction about the mid-plane, only one such portion is provided with a numeral.
HOW TO CARRY OUT THE INVENTION
-In the drawing the numeral 1 identifies two flat glass panes parallel to each other. Between the panes 1 there are provided two insulation films 2, also parallel to each other and parallel to the panes. Helical springs 3 serve to support and tension the films 2. The helical springs are oriented, in the sense of their axial elongation between their two ends, essentially perpendicular to the plane of the films 2, and are anchored at one end (foot portion) in tension profiles 4. At the other ends (head portion) they are secured to the respective insulation films 2 in the edge zones thereof. The tension profiles 4 have flat side surfaces 4.1 where they are adhered to the inside of the panes 1. By means of a separation profile 5, the tension profiles are held at a uniform spacing.
Exteriorly (below in the drawing) the spacing profile 5 has a flat outer surface 5.1, of which the width substantially spans across the space between the panes 1, and a sealing band 6 is applied to the outer surface 5.1 as a vapour barrier. In the spacing profile 5 there is formed a longitudinal chamber 5.2 which is somewhat trapezoidal in cross-section and is filled with a drying agent, the longitll~in~l chamber 5.2 being in communication with the interior window space through small openings 5.3.
Weld-caps 3.1 serve to connect the heads of the helical springs 3 with the insulation films 2j the weld-caps 3.1 being constituted by a material which is fusible~-with the-film material, the weld-caps 3.1 further being inserted in the head ends of the helical springs 3. The insulation films 2 are spot-welded to the weld-caps 3.1. The turns of the coil springs 3 lie continuously at least partly in contact with each other.
Thus they are not compressible under pressure, and do not deflect during application of the welding contact, for example, using an automatic ultrasonic spot-welder.
~029134 -What cannot be seen in the sectional drawing is the distribution of a plurality of helical springs 3 around the entire periphery of the insulation films 2. The helical springs 3 can be provided either at equal spacings, or with an increasingly closer spacing adjacent the corner regions. With the latter there arises a more advantageous tension distribution in the film surface than is attained with equal spacing. A
suitable average spacing between helical springs- for a polyester film with a thickness of 75 micrometers is approximately 5 cm.
The length of the helical springs 3 is roughly three times their diameter.
In the tension profiles 4, the helical springs 3 are anchored in a longitudinal groove 4.2 with undercut flanks. For this purpose, the last turn in the foot portion of the helical springs is somewhat enlarged with respect to the remaining turns, and the enlarged turn locks itself into the undercuts of the longitudinal groove 4.2. By this kind of securement, the foot portion end of the helical springs 3 is mechanically secured to the tension profiles 4, while the opposing head-portion end, secured to the insulation film, is freely movable in all directions. The helical springs 3 can thus follow and/or compensate virtually all shape alterations of the insulation films 2 with respect to the tension profiles 4.
As an example, aluminum can be used as the material for the tension profile. However, the use of plastic is of advantage due to its significantly smaller thermoconductivity.
As can be clearly seen in the drawing, the helical springs 3 are bent transversely with respect to their longitudinal extension, because of the necessAry pre-stressing of the insulation film 2. In order that thesprings 3 can be situated roughly perpendicular to the ~2~34 -films 2 r they are secured into the tension profiles 4 in a somewhat angulated manner with respeot to the planes of the films.
The turns of the helical springs 3, due to the spring being bent transversely to their longitudinal extent, are partially raised or separated from one another, and exhibit, at the inside edge of the bend, essentially only point contact with each other.
Therefore, lateral form alterations of the insulation films 2 in the longitudinal direction of the tension profile result only in frictionless turning- or tilting-movements of the individual turns about these point contacts.
The forward edges 4.3 of the illustrated leg flanges 4.4 of the tension profiles 4 serve to clearly-fix the positions of the film planes. The connection locations between the insulation films 2 and the helical springs 3 are somewhat rearwardly offset with respect to these edges 4.3.
The side surfaces 4.1 of the tension profile 4, used as attachment surfaces, are formed with a relatively large surface in order to ensure a stable adhesion. A suitable adhesive is, for example, an acrylate contact adhesive, which can be applied to the flat side surfaces 4.1 of the tension profile 4 in theform of a mounting adhesive band provided with a protective strip, prior to the actual assembly of the adhesive joint.
The thickness, the elasticity and the creep characteristics of the adhesive layer are so selected that the layer is able to elastically absorb shear forces which are caused by transient unequal thermal expansions of the panes and the tension profile, or by corresponding mechAnical shocks. On the other hand, the adhesive layer does not exhibit any creep under the effect of the latent foil tension. Preferably, the -thickness of the adhesive layer corresponds roughly to the maximum expected relative displacement between the panes and the tension profile.
The possibility of providing the connection between the tension profiles 4 and the panes 1 as a load-supporting joint is a direct consequence of the use of helical springs 3 for tensioning the films 2 in the described manner, because in this manner practically no friction forces need to be overcome in tensioning the films. Because of the low overall tension, it is also not necessary to construct the tension profiles 4 as a load-bearing tension frame. It is even possible to combine several tension profiles around the periphery of the insulation films without direct connection with each other and with equalization gaps between pairs of adjacent ends. An embodiment for a rectangular window which is advantageous from a sealing point of view, includes the combination of two U-shaped bent tension profiles, because the abutment locations between them occur at two longitudinal sides of the rectangular section, and not at the corners where sealing considerations are critical.
The spacing profile 5 is attached to both tension profiles 4 in the manner of a tongue and groove joint, - 25 in which spring flanges 5.5 prevent the independent release of the connection.
For appearance reasons inter alia, the leg flanges 4.4 of the tension profiles, and the upper wall of the longitudinal chamber 5.2 of the spacing profile 5 facing the interior of the glazing element, are provided with flat surfaces at the same height and with small mutual spacing. Between them there is left only a small gap for the passage of the insulation films 2.
The sealing band 6 is a band of rust-proof (austenitic) stainless steel with a thickness of 0.05 mm. A butyl adhesive that softens at high temperature ~0291~4 -for adhering the sealing band between the panes. In contradistinction to the adhesive used for adhering the tension profiles, the butyl adhesive does not need to resist any forces. In the edge regions adjacent the panes, the configuration of the spacing profile and the tension profiles provides longitudinal grooves 7, as is clearly seen in the drawing. The adhesive can flow into these longitudinal grooves 7, and can tightly seal the gaps between the spacing profile 5 and the tension profiles 4, as well as between the latter and the panes.
Aside from these edge regions, no adhesive connection is provided between the spacing profile 5 and the sealing band 6.
The above described glazing element is notable for its simple construction. Above all, the helical springs are markedly cost-advantageous parts. The window can be manufactured with low construction costs and in only a few working steps that can be automated.
Naturally, changes are possible with respect to the described example embodiment. For example, one of the two insulation films 2 can be omitted. Instead of helical springs it is possible to use other spring elements with similar spring characteristics, for example a flat spring twisted together through 90, or resilient tongues formed directly on the tension profile. Instead of using welding, the films can be connected to the helical springs or other employed spring elements utilizing adhesive.
Claims (17)
1. A glazing element with at least one insulation film (2) stretched between two panes, in which spring elements (3) supported from a tension profile (4) areused to tension the film, the spring elements being elongate between two ends, characterized in that the spring elements are distributed over the entire film periphery, and are elastically bendable in all directions transverse to their elongation, the spring elements having their elongation direction essentially perpendicular to the film plane with their one end at the film and their other end secured to the tension profile in such a way that they can elastically follow relative shape alterations of the film with respect to the tension profile by bending transversely to their elongation direction.
2. The glazing element according to claim 1, characterized in that the spring elements are elastically bent at right angles to their elongation direction by the film tension.
3. The glazing element according to claim 2, characterized in that the longitudinal extent of the spring elements is substantially three times their width measured at right angles to the longitudinal extent.
4. A glazing element according to claim 1, claim 2 or claim 3, characterized in that the spring elements are at equal spacings from each other.
5. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the distance between adjacent spring elements becomes progressively less as they approach the corners.
6. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the spring elements are helical springs.
7. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the spring elements are helical springs, in that the helical springs are provided at their ends adjacent the film with a welding cap (3.1) made of a material fusible with the film material, and in that the insulation film iswelded to the welding cap.
8. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the spring elements are helical springs, and in that the last turn of the helical spring at the end adjacent the tension profile is enlarged with respect to the other turns and is inserted in a longitudinal groove (4.2) of thetension profile, the groove having undercut flanks.
9. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the spring elements are helical springs, and in that the turns of the helical springs continuously lie against each other at least partially.
10. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the insulation film is stretched over an edge (4.3) on thetension profile, such that the connection location between the insulation film and the spring elements is offset with respect to this edge.
11. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the tension profile is adhered inwardly of the panes at a flat lateral surface (4.1).
12. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the tension profile is adhered inwardly of the panes at a flat lateral surface (4.1), in that the tension profile is adhered inwardly of the panes utilizing an adhesive layer, and in that the thickness, elasticity and creep behaviour of the adhesive layer are so selected that it can, through elastic deformation, equalize transient shear forces created by unequal thermal expansion between thepanes and the tension profile or through corresponding mechanical shocks, the adhesive layer, however, not exhibiting any creep as a result of the effect of the latent existing film tension.
13. The glazing element according to claim 1, claim 2 or claim 3, characterized in that there is provided, for establishing the distance of the two panes from each other, a spacing profile (5) which is connected to at least one tension profile.
14. The glazing element according to claim 1, claim 2 or claim 3, characterized in that there is provided, for establishing the distance of the two panes from each other, a spacing profile (5) which is connected to at least one tension profile, and in that the spacing profile is provided inwardly with a longitudinal chamber (5.2) filled with a drying agent and in communication with the space or spaces between the two panes.
15. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the insulation film is stretched over an edge (4.3) on thetension profile, such that the connection location between the insulation film and the spring elements is offset with respect to this edge, in that the edge over which the insulation film is stretched is the edge of a leg flange (4.4) of the tension profile, in that the said leg flange has a flat surface towards the interior space of the glazing element, in that the longitudinal chamber in the spacing profile which is filled with drying agent also exhibits a flat surface facing toward the interior space of the glazing element, and in that these surfaces are disposed in the same plane with only a small spacing between, leaving merely a small gap for the passage of the insulation film.
16. The glazing element according to claim 1, claim 2 or claim 3, characterized in that there is provided, for establishing the distance of the two panes from each other, a spacing profile (5) which is connected to at least one tension profile, and in that a sealing band (6) is sealingly, adhesively secured as a vapour barrier around the spacing profile between the two panes.
17. The glazing element according to claim 1, claim 2 or claim 3, characterized in that the glazing element exhibits two similarly tensioned insulation films and is essentially symmetrically configured with respect to the mid-plane between the said films.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2612/90-4 | 1990-08-10 | ||
| CH2612/90A CH681555A5 (en) | 1990-08-10 | 1990-08-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2029134A1 CA2029134A1 (en) | 1992-02-11 |
| CA2029134C true CA2029134C (en) | 1996-02-06 |
Family
ID=4237690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002029134A Expired - Fee Related CA2029134C (en) | 1990-08-10 | 1990-11-01 | Glazing element |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5237787A (en) |
| EP (1) | EP0470374B1 (en) |
| JP (1) | JPH04254443A (en) |
| AT (1) | ATE96203T1 (en) |
| CA (1) | CA2029134C (en) |
| CH (1) | CH681555A5 (en) |
| DE (1) | DE59100503D1 (en) |
| DK (1) | DK0470374T3 (en) |
| ES (1) | ES2045991T3 (en) |
| FI (1) | FI913352A (en) |
| NO (1) | NO912660L (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5386672A (en) * | 1991-02-20 | 1995-02-07 | Iselin; Francois | Multiple performance glazing |
| UA81001C2 (en) * | 2002-12-05 | 2007-11-26 | Visionwall Corp | Heat-insulation window |
| US7699875B2 (en) * | 2006-04-17 | 2010-04-20 | Applied Spine Technologies, Inc. | Spinal stabilization device with weld cap |
| WO2012011177A1 (en) * | 2010-07-22 | 2012-01-26 | 東邦シートフレーム株式会社 | Multi-layered window structure |
| AT510187B1 (en) * | 2010-07-27 | 2012-05-15 | Ifn-Holding Ag | METHOD FOR PRODUCING A MULTIPLE INSULATING GLASS ELEMENT |
| AT510188B1 (en) | 2010-07-27 | 2012-05-15 | Ifn-Holding Ag | METHOD FOR PRODUCING A MULTIPLE INSULATING GLASS ELEMENT |
| AT510189B1 (en) | 2010-07-27 | 2012-05-15 | Ifn-Holding Ag | METHOD FOR PRODUCING A MULTIPLE INSULATING GLASS ELEMENT |
| DE102011101510B4 (en) * | 2011-05-13 | 2014-07-24 | Sartorius Stedim Biotech Gmbh | Sealing and method for sealing acting as a sterile barrier and use of a pressure-sensitive adhesive |
| CN102733723B (en) * | 2012-06-25 | 2014-09-10 | 曹娟 | Efficient and energy-saving hollow film glass |
| WO2015006847A1 (en) * | 2013-07-19 | 2015-01-22 | Litezone Technologies Inc. | Pressure compensated glass unit |
| CN103498623B (en) * | 2013-10-18 | 2015-07-22 | 伟视幕墙（上海）有限公司 | Breathable internal suspension membrane type dual-insulated glass |
| CN103498624B (en) * | 2013-10-18 | 2015-08-26 | 伟视幕墙（上海）有限公司 | Interior outstanding film hollow glass |
| CN103498622B (en) * | 2013-10-18 | 2015-06-17 | 伟视幕墙（上海）有限公司 | Method for film stretching of internally-suspended film of hollow glass and film stretching frame assembly |
| US10125537B2 (en) * | 2014-07-18 | 2018-11-13 | Litezone Technologies Inc. | Pressure compensated glass unit |
| CN104612553B (en) * | 2015-01-29 | 2016-05-04 | 伟视幕墙（上海）有限公司 | Intelligent dimming three double glazings |
| CN104589646B (en) * | 2015-01-29 | 2017-02-22 | 伟视幕墙（上海）有限公司 | Stretched diaphragm welding equipment for suspension diaphragm hollow glass |
| CN104942760B (en) * | 2015-07-14 | 2016-08-24 | 伟视幕墙（上海）有限公司 | Spring machine is inserted for preparing the stretch tight automatic rotary cutting of film frame of outstanding film double glazing |
| CN105507762B (en) * | 2016-01-14 | 2017-05-10 | 伟视幕墙（上海）有限公司 | Composite vacuum glass with dual-hollowed suspension membrane |
| RU186400U1 (en) * | 2017-11-01 | 2019-01-17 | Дмитрий Юрьевич Осипов | FRAME-GLASS PACKAGE |
| DE202019005680U1 (en) * | 2018-09-13 | 2021-06-17 | Saint-Gobain Glass France | Spacers with metallic side parts |
| TWI748268B (en) * | 2019-10-25 | 2021-12-01 | 凌嘉科技股份有限公司 | Isolation device for energy-saving windows |
| CN112761480B (en) * | 2019-11-04 | 2023-01-17 | 凌嘉科技股份有限公司 | Isolating device of energy-saving window |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589889A (en) * | 1945-03-19 | 1947-07-02 | John Robertson Brown | Improvements in and relating to windscreens, windows and other transparent panels |
| CH588627A5 (en) * | 1974-06-25 | 1977-06-15 | Lueder Holger | Making a window pane with plastics sheets spaced between glass - which supports the tension of the plastics material |
| JPS5293125A (en) * | 1975-12-31 | 1977-08-05 | Becker Otto Alfred | Photootransmission building material |
| DE7808307U1 (en) * | 1978-03-18 | 1978-07-06 | Deutschmeister Bauelemente Gmbh, 6990 Bad Mergentheim | INSULATING GLASS UNIT |
| CH636402A5 (en) * | 1978-11-17 | 1983-05-31 | Sulzer Ag | INSULATION ELEMENT BETWEEN THE WINDOWS OF A COMPOSITE WINDOW. |
| US4242386A (en) * | 1978-11-28 | 1980-12-30 | Christel Konrad | Multiple glazing units |
| DK154715C (en) * | 1980-02-20 | 1989-05-16 | Teijin Ltd | WINDOW CONSTRUCTION |
| FR2537109A1 (en) * | 1982-12-02 | 1984-06-08 | Bernardy Claude | Device for setting (tensioning) and retaining flexible sheets with the aid of an inflatable hose for articles of glazing and for mirrors |
-
1990
- 1990-08-10 CH CH2612/90A patent/CH681555A5/de not_active IP Right Cessation
- 1990-11-01 CA CA002029134A patent/CA2029134C/en not_active Expired - Fee Related
-
1991
- 1991-07-06 AT AT91111270T patent/ATE96203T1/en not_active IP Right Cessation
- 1991-07-06 DE DE91111270T patent/DE59100503D1/en not_active Expired - Fee Related
- 1991-07-06 EP EP91111270A patent/EP0470374B1/en not_active Expired - Lifetime
- 1991-07-06 DK DK91111270.4T patent/DK0470374T3/en active
- 1991-07-06 ES ES91111270T patent/ES2045991T3/en not_active Expired - Lifetime
- 1991-07-08 NO NO91912660A patent/NO912660L/en unknown
- 1991-07-10 FI FI913352A patent/FI913352A/en not_active Application Discontinuation
- 1991-08-08 JP JP3199348A patent/JPH04254443A/en active Pending
- 1991-08-09 US US07/743,159 patent/US5237787A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FI913352A (en) | 1992-02-11 |
| US5237787A (en) | 1993-08-24 |
| JPH04254443A (en) | 1992-09-09 |
| DK0470374T3 (en) | 1994-01-03 |
| NO912660D0 (en) | 1991-07-08 |
| ATE96203T1 (en) | 1993-11-15 |
| DE59100503D1 (en) | 1993-11-25 |
| EP0470374B1 (en) | 1993-10-20 |
| FI913352A0 (en) | 1991-07-10 |
| CH681555A5 (en) | 1993-04-15 |
| EP0470374A1 (en) | 1992-02-12 |
| NO912660L (en) | 1992-02-11 |
| ES2045991T3 (en) | 1994-01-16 |
| CA2029134A1 (en) | 1992-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |