Insulating glazing unit forming a window or door opening panel, which is frameless around at least a part of its perimeter

The integration of metal profiles and structural adhesive in insulating glazing addresses the mechanical hold and shock resistance issues by enhancing the rigidity and sealing of spacers made of different materials, ensuring effective performance in refrigeration applications.

EP3877620B1Active Publication Date: 2025-01-29SAINT GOBAIN VITRAGE SA
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Patent Information

Application Number
EP2019801513
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-11-05
Filing Date
2019-11-05
Publication Date
2025-01-29
Estimated Expiration
2039-11-05

AI Technical Summary

Technical Problem

Insulating glazing without a frame on part of its periphery faces challenges in mechanical hold and shock resistance due to spacers made of different materials, leading to stress accumulation during impacts.

Method used

The design includes two glass sheets spaced by vertical and horizontal spacers of different materials, with metal profiles fixed using structural adhesive for enhanced rigidity, and sealing barriers to secure the spacers and glass sheets, ensuring mechanical reinforcement and shock resistance.

Benefits of technology

The solution provides improved mechanical hold and shock resistance to insulating glazing, allowing it to withstand impacts without compromising sealing, even with spacers made of different materials, and is applicable in refrigeration furniture and doors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an insulating glazing unit (1) forming a window or door opening panel, which is frameless around at least a part of its perimeter and which comprises at least two panes of glass (3, 4) that are spaced apart in pairs by a left-hand and a right-hand vertical spacer (2) that are made of glass and disposed respectively close to the left-hand and right-hand edges of the glass panes, and an upper and a lower horizontal spacer (5) that are made of a material other than glass and are disposed respectively close to the upper and lower edges of the glass panes. The insulating glazing unit also comprises, between each face of the horizontal spacers that is turned toward the outside of the insulating glazing unit and the edge of the glass panes, a metal profiled element (7), at least one end of the lower metal profiled element being fastened at least to the two glass panes by virtue of a structural adhesive. The invention makes it possible to provide an insulating glazing unit forming a window or door opening panel, which is frameless around at least a part of its perimeter, has good mechanical integrity and is shock resistant in spite of the spacers made of different materials.
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Description

[0001] The invention relates to insulating glazing forming a door or window opening, without a frame over at least part of its perimeter.

[0002] It is known that door or window openings have insulating glazing surrounded by a frame which provides mechanical strength.

[0003] Document WO2017 / 036832 discloses a refrigerated cabinet door formed from multiple glazing combining an intermediate frame, peripheral seals and reinforcement making it possible to do without a frame element. The door includes transparent vertical seals connecting the glass sheets of the glazing to transparent spacers.

[0004] However, the trend is towards lighter glazing and optimizing the clear view. For this purpose, glazing with transparent spacers at least on the vertical edges, which are then frameless on these edges, is known, particularly for refrigerator doors. However, the question arises as to the mechanical strength of such glazing. In addition, such doors or windows may include spacers made of a different material on their horizontal edges. Combining two types of spacers made of materials that may have quite different mechanical behavior can cause stress to build up at the boundary between the spacers and lead to breakage of the insulating glazing along the lower horizontal spacer in the event of impact against the glazing.

[0005] There is therefore a need for insulating glazing forming a door or window opening, without a frame over at least part of its perimeter, which has good mechanical strength and is resistant to impacts despite spacers made of different materials.

[0006] For this, the invention proposes an insulating glazing forming a door or window opening, without a frame over at least part of its periphery, comprising at least two sheets of glass spaced two by two by two left and right vertical spacers made of glass arranged respectively near the left and right edges of the glass sheets and two upper and lower horizontal spacers made of a material other than glass arranged respectively near the upper and lower edges of the glass sheets, the insulating glazing also comprising, between each face of the horizontal spacers facing the outside of the insulating glazing and the edge of the glass sheets, a metal profile, at least one end of the lower metal profile being fixed at least to the two sheets of glass using a structural adhesive.

[0007] According to another feature, the structural bonding fixing means has: a Shore D hardness of between 30 and 70, preferably between 40 and 60, or even between 45 and 55, and / or a Shore A hardness of between 80 and 100, preferably between 85 and 95, or even between 87 and 93, and / or a tensile strength of between 1 and 50 N / mm2, preferably between 1 and 30 N / mm2, or even between 1 and 20 N / mm2, or even 5 and 15 N / mm2, and / or an elongation at break of between 50 and 500%, preferably between 100 and 450%, or even between 140 and 400%.

[0008] According to another feature, the vertical glass spacers are arranged flush with the vertical edges of the glass sheets and each of the side faces of each vertical spacer is fixed to the glass sheets using a transparent adhesive fixing means preferably having a watertight function, and even more preferably a watertight, airtight, gastight and water vapourtight function.

[0009] According to another feature, each of the lateral faces of each horizontal spacer is fixed to the glass sheets using a means of fixing by gluing forming a first sealing barrier, preferably against air, gases and water vapour, of the butyl type.

[0010] According to another feature, the insulating glazing further comprises a seal, forming a second sealing barrier, preferably watertight, of the polyurethane, polysulfide or silicone type, between each face of the horizontal spacers facing the outside of the insulating glazing and each metal profile, this seal making it possible to fix each horizontal spacer to the glass sheets and to fix each metal profile to the corresponding spacer and possibly to the glass sheets.

[0011] According to another feature, the length of the vertical glass spacers is less than the length of the vertical edges of the glass sheets and the length of the horizontal spacers is less than the length of the horizontal edges of the glass sheets, each end of each vertical glass spacer being partially abutted against an end edge of a horizontal spacer.

[0012] According to another feature, each end of each horizontal spacer is covered with the same means of fixing by gluing as the lateral edges of said horizontal spacer, a sealing joint being arranged between each end of each horizontal spacer and the left and right vertical edges of the glass sheets.

[0013] According to another feature, at least one end of the lower metal profile is covered with structural adhesive on at least three of its faces, two of its faces being those located opposite the glass sheets and the third face being the face facing the inside of the insulating glazing.

[0014] According to another feature, both ends of the lower metal profile are covered with structural adhesive.

[0015] According to another feature, the entire length of the lower metal profile is covered with structural adhesive.

[0016] According to another feature, at least one end of the two lower and upper metal profiles is covered with structural adhesive, these two ends being on the same right or left side.

[0017] According to another feature, two ends of the two lower and upper metal profiles are covered with structural adhesive.

[0018] According to another peculiarity, the entire length of both the lower and upper metal profiles is covered with structural adhesive.

[0019] According to another feature, each lower and upper metal profile is a mechanical reinforcement metal profile.

[0020] According to another feature, each lower and upper metal profile is provided at one of its ends with a pivot rod adapted to be inserted into a pivot hole of a door or window frame on which the insulating glazing forming the opening is intended to be mounted.

[0021] According to another feature, when only one end of the lower metal profile or only one end of both the lower and upper metal profiles is (are) covered with structural adhesive, this (these) end(s) is (are) on the side of the insulating glass where the pivot rods are located.

[0022] According to another feature, the space delimited by the glass sheets, the vertical glass spacers and the horizontal spacers is filled with air or a rare gas such as argon or krypton.

[0023] The invention also relates to a climate-controlled cabinet, in particular a refrigerated cabinet with positive cold, comprising at least one insulating glazing as described above.

[0024] The invention also relates to a window or door comprising as an opening an insulating glazing as described above, and a frame on which the opening is hinged.

[0025] Other characteristics and advantages of the invention will now be described with reference to the drawings in which: There figure 1 represents a front view of an insulating glazing unit according to the invention; The figure 2 represents a detailed front view of a corner of an insulating glazing unit according to the invention; The figure 3 represents a sectional view along AA' of the figure 2 of a vertical edge of an insulating glazing according to the invention; The figures 4a et 4b represent a sectional view respectively along BB' and along CC' of the figure 2 of a horizontal edge of an insulating glazing according to the invention; The figures 5a à 5e represent five possible configurations of covering the metal profile with a structural adhesive; The figure 6 represents a perspective view of the test carried out to test the mechanical resistance under frontal impact; The figure 7 represents a sectional view of an insulating glazing unit of the prior art without structural adhesive and which did not withstand the impact of the test according to the figure 6 .

[0026] The term "glass sheet" is to be understood as any transparent substrate with a glazing function. It can be a sheet of mineral glass or organic glass.

[0027] The term "transparent" should be understood as allowing at least colors and shapes to be seen through it, without necessarily being able to read text behind it. However, it is preferable to read text and see through the transparent spacer.

[0028] Reference numbers that are identical in different figures represent similar or identical elements.

[0029] The invention relates to an insulating glazing unit forming a door or window opening, without a frame over at least part of its periphery, and which comprises at least two glass sheets spaced two by two by two left and right vertical spacers made of glass, arranged respectively near the left and right edges of the glass sheets, and two upper and lower horizontal spacers made of a material other than glass, arranged respectively near the upper and lower edges of the glass sheets. The insulating glazing unit also comprises, between each face of the horizontal spacers facing the outside of the insulating glazing unit and the edge of the glass sheets, a metal profile, at least one end of the lower metal profile being fixed at least to the two glass sheets using a structural adhesive.

[0030] Thus, the metal profile provides rigidity to the insulating glazing, and therefore mechanical strength. In addition, the structural adhesive provides rigidity to at least the lower horizontal edge, and therefore reinforces at least one corner located near the connection between two spacers made of different materials, and thus reinforces impact resistance despite the presence of spacers made of different materials.

[0031] There figure 1 represents a front view of insulating glazing according to the invention.

[0032] Insulating glazing 1 forms a door or window opening. For example, it forms the opening of a refrigerated cabinet, for example with positive cold.

[0033] The insulating glazing 1 comprises at least two sheets of glass 3, 4 spaced two by two by two vertical spacers 2 made of glass and two horizontal spacers 5 made of a material other than glass. The insulating glazing 1 also comprises two pivot rods 8 each adapted to be inserted into a pivot hole of a door or window frame on which the insulating glazing 1 forming an opening is intended to be mounted. The two pivot rods 8 are preferably located at the end, respectively, of the two horizontal edges of the insulating glazing 1, on the same right or left side.

[0034] The insulating glazing is frameless over at least part of its perimeter, for example at least on the two vertical edges. Preferably, the insulating glazing 1 is frameless over its entire perimeter.

[0035] There figure 2 represents a detailed front view of a corner of an insulating glazing unit according to the invention.

[0036] The two vertical glass spacers 2 are arranged respectively near the left and right edges of the glass sheets 3, 4: they are called right and left vertical spacers. The two horizontal spacers 5 are arranged respectively near the upper and lower edges of the glass sheets 3, 4: they are called upper and lower horizontal spacers. The space delimited by the glass sheets 3, 4 and the vertical and horizontal spacers 2, 5 is filled with air or a rare gas such as argon or krypton. The rare gas makes it possible to improve the thermal insulation of the insulating glazing with respect to air. The presence of glass spacers on the vertical edges makes it possible to increase the clear view of the insulating glazing since they are transparent. The user of the insulating glazing 1, for example a supermarket customer if it is a commercial refrigerator opening, is not bothered by vertical uprights which would prevent him from seeing certain products.Multiple doors can be mounted flush next to each other. The user can then see the entire contents of the refrigerators at a glance. The view is not obstructed by any vertical posts.

[0037] There figure 3 represents a sectional view along AA' of the figure 2 of a vertical edge of an insulating glazing unit according to the invention.

[0038] The vertical glass spacers 2 are preferably arranged flush with the vertical edges of the glass sheets 3, 4. Each lateral face of each vertical spacer 2 is fixed to one of the glass sheets 3, 4 by means of a transparent adhesive fixing means 20. This transparent adhesive fixing means 20 contributes to increasing the clear view. The transparent adhesive fixing means 20 preferably has at least one waterproof function, more preferably a waterproof, air, gas and water vapor tightness function. The transparent adhesive fixing means 20 is for example a material which crosslinks under ultraviolet (UV) or not, preferably quickly (at most a few minutes). It is for example made of acrylate resin or epoxy resin, such as for example the UV glue Verifix LV 740 supplied by the company BOHLE, which is crosslinkable under UV.

[0039] THE figures 4a et 4b represent a sectional view respectively along BB' and along CC' of the figure 2 of a horizontal edge of an insulating glazing unit according to the invention.

[0040] Each horizontal spacer 5 is made of a material other than glass. For example, it is a classic aluminum spacer or a spacer with thermal break, called "warm edge", such as the spacer marketed under the Swisspacer brand in styrene acrylonitrile (SAN) which can be reinforced with glass fibers.

[0041] Each horizontal spacer 5 is preferably hollow to accommodate desiccant 51 and then has fine grooves on its face facing the inside of the insulating glazing unit making it possible to bring the space internal to the insulating glazing unit filled with air or rare gas into contact with the desiccant, without the desiccant being able to flow into said space.

[0042] Each lateral face of each horizontal spacer 5 is fixed to one of the glass sheets 3, 4 by means of a bonding fixing means 50, which constitutes a first sealing barrier, preferably against air, gases and water vapor, such as for example butyl.

[0043] The insulating glazing 1 also comprises, between the two glass sheets 3, 4, and between each face of the horizontal spacers 5 facing the outside of the insulating glazing 1 and the edge of the glass sheets 3, 4, a metal profile 7. The insulating glazing 1 therefore comprises two metal profiles 7, respectively arranged on the upper and lower edges of the insulating glazing 1. Each metal profile 7 is a mechanically reinforcing metal profile and makes it possible to improve the mechanical strength of the insulating glazing 1. The metal profiles 7 are preferably arranged flush with the horizontal edges of the glass sheets 3, 4. Each metal profile 7 has a length substantially equal to the length of the horizontal edges of the glass sheets 3, 4.

[0044] Each lower and upper metal profile 7 is provided at one of its ends with a pivot rod adapted to be inserted into a pivot hole of a door or window frame on which the insulating glazing forming the opening is intended to be mounted. The two pivot rods 8 are located on the same side, right or left, of the insulating glazing 1.

[0045] Between each face of the horizontal spacers 5 facing the outside of the insulating glazing 1 and the metal profile 7, the insulating glazing further comprises a seal 6, forming a second sealing barrier, preferably against water, such as for example polyurethane, polysulfide or silicone.

[0046] The sealing gasket 6 makes it possible to fix each horizontal spacer 5 to the glass sheets 3, 4 and to fix each mechanical reinforcement profile to the corresponding spacer and possibly to the glass sheets if the sealing gasket 6 creeps between the lateral faces of said metal profile 7.

[0047] Furthermore, as is represented in particular on the figure 2 , the length of the vertical glass spacers 2 is less than the length of the vertical edges of the glass sheets 3, 4 and the length of the horizontal spacers 5 is less than the length of the horizontal edges of the glass sheets 3, 4. Each end of each vertical glass spacer 2 is then partly butted against an end edge of a horizontal spacer 5 in order to form a closed spacer frame, formed from all four vertical and horizontal spacers 2, 5.

[0048] In order to reinforce the sealing of the spacer frame, each end of each horizontal spacer 5 is covered with the same adhesive fixing means 50 as the lateral edges of said horizontal spacer 5. In addition, a sealing gasket 6 is arranged between the ends of each horizontal spacer 5 and the left and right vertical edges of the glass sheets 3, 4. Thus, the insulating glazing 1 comprises two sealing barriers 50, 6 at the end of each horizontal spacer 5 as for the rest of said horizontal spacer 5.

[0049] Furthermore, as represented in particular on the figures 2 And 4a, the insulating glazing 1 comprises a structural adhesive on at least one end of the lower metal profile 7. This structural adhesive makes it possible to bond at least said end of the lower metal profile 7 to the two sheets of glass. Preferably, the structural adhesive is also present on the face of the lower metal profile 7 facing the inside of the insulating glazing 1, which makes it possible to further bond said end of the lower metal profile 7 to the seal 6.

[0050] Structural adhesive is an adhesive whose function is to provide rigidity to the insulating glass unit in order to improve its mechanical strength and impact resistance. The structural adhesive is preferably in the form of a thixotropic paste that cures at room temperature in a few minutes.

[0051] Also, the structural adhesive 9 has, for example, a Shore D hardness of between 30 and 70, preferably between 40 and 60, or even between 45 and 55 to further improve the mechanical strength. The structural adhesive 9 has, for example, a Shore A hardness of between 80 and 100, preferably between 85 and 95, or even between 87 and 93 to further improve the mechanical strength. The structural adhesive 9 has, for example, a tensile strength of between 1 and 50 N / mm 2< , preferably between 1 and 30 N / mm 2< , or even between 1 and 20 N / mm 2< , or even between 5 and 15 N / mm 2< to further improve the mechanical strength. The structural adhesive 9 has, for example, an elongation at break of between 50 and 500%, preferably between 100 and 450%, or even between 140 and 400% to further improve the mechanical strength. These four parameters are to be considered alone or in combination of at least two.

[0052] THE figures 5a à 5e represent five possible configurations for covering the metal profile with a structural adhesive. To facilitate reading, on the figures 5a à 5e , only the metal profiles 7 and the structural adhesive 9 are shown on the horizontal edges.

[0053] In the configuration of the figure 5e , only the end of the lower metal profile 7 located near the pivot rod 8 is covered with structural adhesive 9. The coverage of this end is a few centimeters, preferably between 1 and 10 cm, more preferably between 1 and 5 cm, or even between 2 and 4 cm.

[0054] In the configuration of the figure 5c , both ends of the lower metal profile 7 are covered with structural adhesive 9.

[0055] In a configuration not shown, the entire length of the lower metal profile 7 is covered with structural adhesive 9.

[0056] In the configuration of the figure 5d , the end of the two lower and upper metal profiles 7 is covered with structural adhesive 9, these two ends being on the same right or left side and located near the pivot rod 8.

[0057] In the configuration of the figure 5b , the two ends of the two lower and upper metal profiles 7 are covered with structural adhesive 9.

[0058] In the configuration of the figure 5a , the entire length of the two lower and upper metal profiles 7 is covered with structural adhesive 9.

[0059] In order to test the mechanical shock resistance performance of these different configurations, a test was set up.

[0060] There figure 6 represents a perspective view of the test carried out to test the mechanical resistance under frontal impact.

[0061] The insulating glass unit 1 is mounted on a refrigerated cabinet 10. A supermarket trolley, with an empty weight of 20 kg, rolls down a 5° slope over 50 cm in length, perpendicular to the insulating glass unit. The test is carried out with the trolley empty and then adding 10 kg to each test up to a total of 100 kg (20 kg trolley + 80 kg load). Three identical tests were carried out for each configuration.

[0062] For these tests, the insulating glass unit 1 comprises two sheets of glass 3, 4 made of 4 mm thick tempered glass, spaced 16 mm apart. The transparent adhesive fixing means 20 is Verifix LV740 UV adhesive. The horizontal spacers 5 are made of aluminum, the adhesive means 50 is butyl and the sealing gasket 6 is polyurethane. The structural adhesive 9 has a Shore A hardness of 90, a Shore D hardness of 50, a tensile strength of 10 N / mm 2< , and an elongation at break of 150%.

[0063] A first test was carried out on a prior art insulating glazing without structural adhesive: all the glazings broke with the vacuum trolley. figure 7 represents a sectional view of such insulating glazing without structural adhesive and which did not withstand the impact of the test according to the figure 6 . Arrow F indicates the direction of the carriage before impact. R indicates the fracture zone due to stress accumulation. The prior art insulating glass unit tested comprises two 4 mm thick tempered glass sheets spaced 16 mm apart, two vertical glass spacers bonded to the glass sheets using Verifix LV740 UV adhesive, two horizontal aluminum spacers bonded to the glass sheets using butyl, with a polyurethane seal.

[0064] The rest of the tests covered all the configurations represented on the figures 5a à 5e as well as on the configuration not shown, described above: all of these insulating glazing configurations according to the invention can withstand a total load of at least 40 kg, i.e. a trolley with a load of 20 kg. The structural adhesive therefore plays an essential role in the mechanical strength of the insulating glazing according to the invention.

[0065] Insulating glazing according to the configuration of the figure 5a successfully passed the test up to 100 kg in total. The insulating glass unit according to the configuration not shown (structural adhesive along the entire length of the lower metal profile 7) successfully passed the test up to 100 kg in total. Two out of three glazing units according to the configurations of the figures 5c et 5e also passed the test successfully up to 100 kg in total. The least efficient configuration is that of the figure 5d .

[0066] The structural adhesive 9 is therefore preferably arranged at the level of the lower metal profile alone, at least on its end located on the side of the pivot rod 8. Even more preferably, the structural adhesive is arranged on the two ends of the lower metal profile, or even over the entire length of the lower metal profile, or even over the entire length of both the lower and upper metal profiles.

[0067] Leaktightness tests were also carried out: the insulating glazing is also efficient with the addition of the structural adhesive on the metal profile.

[0068] The insulating glazing 1 according to the invention, without a frame around its perimeter, but provided with lower and upper metal profiles, at least the end of the lower metal profile located near the pivot rod being covered with structural adhesive 9, therefore makes it possible to improve the mechanical strength of the insulating glazing and its resistance to impacts, without loss in terms of sealing.

[0069] The insulating glazing can be integrated into a climate cabinet, in particular a refrigerated cabinet with positive cold. The invention therefore also relates to a climate cabinet, in particular a refrigerated cabinet with positive cold, comprising at least one insulating glazing unit 1.

[0070] The invention also relates to a window or door comprising as an opening an insulating glazing unit 1, and a frame on which the insulating glazing unit 1 is hinged.

Claims

1. An insulated glazing unit (1) forming a door or window opening panel, which is frameless over at least a part of its periphery, comprising at least two glass panes (3, 4) spaced apart one from another by two, left and right, glass vertical spacers (2) disposed respectively in proximity to the left and right edges of the glass panes (3, 4) and two, top and bottom, horizontal spacers (5) of a material other than glass disposed respectively in proximity to the top and bottom edges of the glass panes (3, 4), the insulated glazing unit (1) also comprising, between each face of the horizontal spacers that faces toward the outside of the insulated glazing unit and the edge of the glass panes, a metal profile (7), at least one and of the bottom metal profile being attached at least to the two glass panes (3, 4) by a structural adhesive (9), each of the lateral faces of each horizontal spacer (5) being attached to the glass panes (3, 4) with a butyl type adhesive attachment means (50) forming a first barrier seal, preferably against air, gases and water vapor, and the insulated glazing unit further comprising a gasket (6) forming a second barrier seal, preferably against water, of the polyurethane, polysulfide or silicone type, between each face of the horizontal spacers (5) that faces toward the outside of the insulated glazing unit and each metal profile (7), said gasket (6) making it possible to attach each horizontal spacer (5) to the glass panes (3, 4) and to attach each metal profile to the respective horizontal spacer (5) and possibly to the glass panes (3, 4).

2. The insulated glazing unit (1) as claimed in claim 1, wherein the structural adhesive (9) has: - a Shore D hardness of between 30 and 70, preferably between 40 and 60, or even between 45 and 55, and / or - a Shore A hardness of between 80 and 100, preferably between 85 and 95, or even between 87 and 93, and / or - a tensile strength of between 1 and 50 N / mm2, preferably between 1 and 30 N / mm2, or even between 1 and 20 N / mm2, or between 5 and 15 N / mm2, and / or - an elongation at break of between 50 and 500%, preferably between 100 and 450%, or even between 140 and 400%.

3. The insulated glazing unit (1) as claimed in claim 1 or 2, wherein the vertical glass spacers (2) are disposed flush with the vertical edge faces of the glass panes (3, 4) and each of the lateral faces of each vertical spacer (2) is attached to the glass panes with a transparent adhesive attachment means (20) preferably having a function of sealing against water, and even more preferably a function of sealing against water, air, gases and water vapor.

4. The insulated glazing unit (1) as claimed in one of claims 1 to 3, wherein the length of the glass vertical spacers (2) is less than the length of the vertical edges of the glass panes (3, 4) and the length of the horizontal spacers (5) is less than the length of the horizontal edges of the glass panes (3, 4), each end of each glass vertical spacer (2) being partly abutted against an end edge of a horizontal spacer (5).

5. The insulated glazing unit (1) as claimed in one of claims 1 to 4, wherein each end of each horizontal spacer (5) is coated with the same adhesive attachment means (50) as the lateral edges of said horizontal spacer (5), a gasket (6) being disposed between each end of each horizontal spacer (5) and the left, respectively right, vertical edge faces of the glass panes (3, 4).

6. The insulated glazing unit (1) as claimed in one of claims 1 to 5, wherein at least one end of the bottom metal profile (7) is coated with structural adhesive (9) over at least three of its faces, two of its faces being those situated facing the glass panes (3, 4) and the third face being the face facing toward the interior of the insulated glazing unit (1).

7. The insulated glazing unit (1) as claimed in one of claims 1 to 6, wherein the two ends of the bottom metal profile (7) are coated with structural adhesive (9).

8. The insulated glazing unit (1) as claimed in one of claims 1 to 7, wherein the full length of the bottom metal profile (7) is coated with structural adhesive (9).

9. The insulated glazing unit (1) as claimed in one of claims 1 to 8, wherein at least one end of both the bottom and top metal profiles (7) is coated with structural adhesive (9), said two ends being on the same right or left side.

10. The insulated glazing unit (1) as claimed in one of claims 1 to 9, wherein two ends of the bottom and top metal profiles (7) are coated with structural adhesive (9).

11. The insulated glazing unit (1) as claimed in one of claims 1 to 10, wherein the full length of the two, bottom and top, metal profiles (7) is coated with structural adhesive (9).

12. The insulated glazing unit (1) as claimed in one of claims 1 to 11, wherein each of the bottom and top metal profiles (7) is a mechanically reinforcing metal profile.

13. The insulated glazing unit (1) as claimed in one of claims 1 to 12, wherein each bottom and top metal profile (7) is fitted at one of its ends with a pivot pin (8) suitable for being inserted in a pivot hole of a door frame or window frame on which the insulated glazing unit (1) forming an opening panel is intended to be mounted.

14. The insulated glazing unit (1) as claimed in claim 13, when dependent on claims 1 and 11, wherein, when only one end of the bottom metal profile (7) or only one end of both bottom and top metal profiles (7) is(are) coated with structural adhesive (9), said end(s) is(are) on the side of the insulated glazing unit (1) where the pivot pins (8) are located.

15. The insulated glazing unit (1) as claimed in one of claims 1 to 14, wherein the space delimited by the glass panes (3, 4), the glass vertical spacers (2) and the horizontal spacers (5) is filled with air or with rare gas such as argon or krypton.

16. A climatic cabinet, in particular a positive cold refrigerated cabinet, comprising at least one insulated glazing unit (1) as claimed in one of claims 1 to 15.

17. A window or door comprising as opening panel an insulated glazing unit (1) as claimed in one of claims 1 to 15, and a frame on which the opening panel is articulated.

Citation Information

Patent Citations

  • Door for a refrigerated cabinet

    WO2017036832A1