JP3216871B2 - Grechan and double glass with Grechan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Grechan (glazing channel) for a frame such as a glass plate, a laminated glass or a double-glazed glass, and more particularly to a double-glazed glass with a Grechan using the Grechan.

[0002]

2. Description of the Related Art In recent years, in order to create a more friendly living environment by, for example, energy saving and soundproofing, the use of double-glazed glass having heat insulating performance and sound insulating performance has increased more frequently than in the past, and it has been remarkably spread. I have. Among them, in such a multi-layer glass, the sealing property is improved or / and the edges of the glass plate, the multi-layer glass and the like are protected, and the glass plate, the laminated glass, the multi-layer glass and the like are used. It has been proposed to make the work of attaching the sash frame to the sash frame easier and more efficient.

[0003] For example, Japanese Utility Model Application Publication No. 63
In Japanese Patent No. 747-747, a solid portion and a hollow portion are joined up and down, a spacer having a concave portion formed in the joint portion is arranged around a plurality of glass plates, and a primary seal is provided in the concave portion. A gap is formed between the outer periphery of the spacer and the inner surface of the glass plate with a secondary seal material, and an edge protector is provided on the outer periphery of the glass plate with a tertiary seal material. Indicate the double-glazed glass inserted in the above, apply sealing in triple and improve the airtightness and durability by selecting the material of each seal material, and also protect the edge of the glass plate It has been disclosed that a high strength double glazing can be provided.

[0004] For example, in Japanese Utility Model Publication No. 60-28780 filed by the present applicant, a sealing material made of thiocol or the like is further provided around the double glazing, and the peripheral portion is double sealed. In addition, it discloses that a frame made of aluminum, plastic, or the like is provided around the double-glazed glass to protect the seal portion and also to protect the edges of the glass plate and the double-glazed glass.

For example, Japanese Patent Application Laid-Open No. 60-250084 discloses a sealing material for a double glazing, and an aluminum foil adhesive tape is provided so as to surround the peripheral surface and the end surface of the double glazing. It is described to cover in a U-shape with a loop.

[0006] For example, Japanese Utility Model Application No. 2-9908 (Japanese Utility Model Application Laid-open No. 3-10)
No. 1793), a protective tape covering the peripheral end surface and the outer peripheral portions of both glass plates is adhered over the entire periphery of the double-glazed glass, and the protective tape is made of polyester,
The protective tape is made of an adhesive tape using a base material of a material selected from polypropylene and aluminum materials, and the protective tape is made of an adhesive tape having a tensile strength of 1 kg / 18 mm width or more and an elongation of 200% or less. The width of the protective tape covering the outer peripheral edge of the glass plate is 1 to 10 mm.

For example, Japanese Patent Application Laid-Open No. 4-55349 discloses that
In the double-glazed glass, the outer peripheral portions of the two outermost glass plates are each coated with a metal thin film, and a flexible metal band along the outer peripheral portions of the glass plates is brazed to both metal thin films together. Certain double glazings are described.

Further, for example, in the microfilm of Japanese Utility Model Application No. 59-113106 (Japanese Utility Model Application Laid-Open No. 61-30040), a plurality of glass plates are opposed at regular intervals by a spacer arranged between the ends. Each glass plate is hermetically bonded by a seal material filled between the glass plates outside the spacer, and the ends of the glass plates are accommodated in a bead having a substantially U-shaped cross section. A double glazing in which a bead and a glass plate are integrally bonded by a seal material is described. The bead is formed by integrally forming a flange made of a hard material on each of upper ends of both sides of a U-shaped body made of a soft material. A synthetic resin molded article formed by the method described above, wherein the bonding is performed by adhesion or fusion, and the main body is inserted into a sash,
By attaching each flange to the flange of the opening edge of the sash, it can be attached to the sash, the whole can be handled as an integral object, and the installation to the sash is simple by simply fitting the end into the sash It is disclosed that it can be done.

Further, for example, Japanese Patent Application Laid-Open No. 7-71170 discloses a channel-shaped reinforcing material capable of surrounding the periphery of a double-glazed glass, and an internal soft material provided on an inner surface of the reinforcing glass facing the double-glazed glass. And a multi-layer glass with an attachment in which an attachment made of an external soft material provided on the outer surface engaging with the sash is attached to the peripheral edge portion, and the external soft material is related to a tip edge of a mounting opening of the sash. A stopper is provided, and a metal or synthetic resin can be used as a reinforcing material. Usually, aluminum, steel, stainless steel, or the like is used, and most preferably, aluminum is used. Further, an inner soft material and an outer soft material are used. It is disclosed that the material is most preferably a vinyl chloride resin or an acrylic resin having a Shore A hardness of about 60 to 70 °.

Further, for example, Japanese Utility Model Laid-Open Publication No. Hei 7-15989 discloses a method in which a bead material is provided with a fitting protrusion which is fitted in a fitting groove provided in a spacer, and the bead material is provided on the peripheral surface of the multi-layer glass. A multilayer formed of a hard bead portion to be covered and a soft bead portion which is disposed on the hard bead portion and overlaps a portion of the glass plate covering the exposed peripheral portion. A glass structure is described.

In addition, for example, Japanese Patent Application Laid-Open No. 7-259443 discloses that a retaining portion projects inwardly from each of upper edges of both side walls of a holding frame portion through a groove, and a buffer member is provided. And a plug-in support leg, which is provided on the outer surface of the support wall portion of the holding frame portion and has a locking groove for locking the bead member. Attachment is described, the cushioning member is formed of semi-rigid or hard synthetic resin material, and the bead member is made of soft synthetic resin material including the wing-shaped support arm portion, and the portion excluding this upper portion is formed of half. It is described that they are integrally formed of a hard or hard synthetic resin material.

Further, for example, Japanese Patent Application Laid-Open No. 2-261186 discloses a glass window with a frame in which a synthetic resin frame is integrally formed around the periphery of a double glazing by pressing a softening synthetic resin immediately after extrusion molding. A manufacturing method is described.

[0013] As a method of directly extruding a frame in a double-glazed glass with a resin frame, for example, Japanese Patent Application Laid-Open Nos. 6-321585, 7-17748, and 7-291678 are known. I have.

[0014]

For example, the edge protector in the double glazing described in Japanese Utility Model Publication No. 63-747 described above has an outstanding effect in places where pressure such as water pressure is applied, particularly in aquarium water tanks. However, it is too much performance in a normal window glass and it is difficult to adopt it because of cost and the like.

[0015] For example, in the case of a double-glazed frame described in Japanese Utility Model Publication No. 60-28780, it is difficult to obtain flexibility in a U-shaped cross section, and a precise dimensional shape of the frame is required.
Workability is not always simple and efficient.

Also, for example, a double-layered glass sealing material described in JP-A-60-250084, or a multilayered film described in the microfilm of Japanese Utility Model Application No. 2-9908 (Japanese Utility Model Application No. 3-101793). For tapes that can be attached to glass, especially for large-area and heavy-weight double-glazed glass, it can be used to prevent breakage during transportation and handling, or to provide sealing performance and prevent slippage between glass plates. It is hard to say enough.

Further, for example, in the case of a flexible metal band or a metal thin film in a double-glazed glass described in JP-A-4-55349,
For example, a metal strip and a metal thin film cannot be said to be inexpensive in terms of material cost, and furthermore, they need to be brazed.

Further, for example, in the case of a bead having a substantially U-shaped cross section in a double glazing described in the microfilm of Japanese Utility Model Application No. 59-113106 (Japanese Utility Model Application Laid-Open No. 61-30040), for example, U Even if it is a synthetic resin molded product in which flanges made of a hard material are integrally formed at the upper ends on both sides of the letter-shaped main body, however, especially in a large-area or heavy-weight double-layered glass, two pieces of soft material are used. It is easy to be damaged by the plate and easily develops deformation and deterioration due to the load, it is not always said that it is sufficiently durable, and it is also good at sealing the hard material and the sash opening edge to the flange with good sealing. It is difficult to say that the joint can be formed smoothly and that the strength of the joint between the soft material and the hard material is not always sufficient.

Further, for example, in the attachment in the double-glazed glass with an attachment described in JP-A-7-71170, a soft material is provided on the inner and outer surfaces of the reinforcing material. However, the external soft material is not sufficiently strong because of the shearing force acting thereon, and it is necessary to increase the contact area.

Further, for example, in the bead material having a double-layer glass structure described in Japanese Utility Model Application Laid-Open No. 7-15989, the bead material is previously fixedly arranged on the exposed peripheral portion of the glass plate.
A hard bead portion provided with a fitting protrusion to be fitted into a fitting groove portion separately provided on a spacer and covered on the periphery of the double-layer glass; And a soft bead, which is disposed so as to be superimposed on a portion covering the exposed peripheral portion of the plate, and is formed by fitting a hard bead or by providing a hollow portion inside. Since only the soft bead portion is used, the Grechan structure is not necessarily sufficiently simplified.

Further, for example, in the attachment for a double glazing described in Japanese Patent Application Laid-Open No. 7-259443, the cushioning member is formed of a semi-rigid or rigid synthetic resin material such as polyvinyl chloride, and the bead member is a wing-shaped support. The upper portion including the arm portion is formed of a soft synthetic resin material, and the portion excluding the upper portion is formed integrally with a semi-rigid or hard synthetic resin material. Is not necessarily sufficient at the interface with the interface.

Further, for example, Japanese Patent Application Laid-Open No. 2-261186 discloses that a synthetic resin frame which is softened immediately after heating or immediately after extrusion molding is pressure-bonded to integrate the synthetic resin frame with the periphery of the double-glazed glass. Even if it is to be worn later and has good adhesiveness to the double-glazed glass and simply improves the sealing performance, it will not only protect the edge of the double-glazed glass but also increase the efficiency of assembling work. At the same time, it is difficult to improve sufficiently.

Further, for example, the method of directly and integrally extruding a frame in a double-glazed glass with a resin frame disclosed in JP-A-6-321585, JP-A-7-17748, JP-A-7-291678, etc. There is a possibility that the protection of the edge portion of the laminated glass and the efficiency of the assembling work can be achieved at the same time, and it can be sufficiently improved at the same time. However, it is not always possible to say that the improvement is sufficient and the economy is sufficient. .

[0024]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is intended to prevent damage during storage, transportation, movement, installation, and the like, and deterioration in sealability. With a holding force that can be prevented, the peripheral surface and the end surface of the glass plate, laminated glass or double glazing can be easily and efficiently protected and sealed sufficiently, and the glass plate, laminated glass or laminated glass can be protected. The work of inserting the layered glass onto the sash is easy, and exhibits high water tightness and a high mounting force at the part to be inserted into the sash. In addition, the strength of the integrated part of the part that exhibits high water tightness and high mounting force is increased, and the Grechan itself has high strength and excellent durability Etc. which shall have, useful Gurechan and the Gurechan with double glazing, there is provided simply and efficiently with a simple structure.

[0025] Namely, the present invention provides a glass plate-like member, a Gurechan used as to surround the periphery surface and the end face of the laminated glass or the double glazing, hard surrounding the peripheral edge surface and end or / and At least a semi-rigid body having a substantially U-shaped cross section and semi-rigid or / and soft substantially U-shaped seal sections provided at both ends on the opening side of the U-shaped cross section. A grecha having a substantially U-shaped cross section is softer than the substantially U-shaped main body.
In this case, an integrated portion in which the substantially U-shaped cross-section main body and the substantially U-shaped cross-section seal face are formed by co-extrusion molding, and the convex portion of the substantially U-shaped cross-section sealing surface is formed. A Grechan, wherein an integrated portion is formed by being fitted in a sandwich shape so as to be wrapped by the concave portion of the main body portion surface having a substantially U-shaped cross section.

Further, according to the present invention, the seal portion having a substantially U-shaped cross section has a tongue-like portion for a seal and a flange portion at both end portions of the U-shape corresponding to the inner surface, and the outer surface. It locked relative to the sash opening edge flange in the middle back area of the U-shaped striking, a substantially U
Of the tongue and flange due to the spring force of the main body
Around glass plate, laminated glass or double-glazed glass
The Grechan according to the above, wherein the Grechan has a protruding piece-like portion and a groove-like portion for holding an edge surface and an end surface .

Further, the present invention relates to the above-mentioned tongue-shaped portion and flange.
The Grechan as described above, wherein the boundary between the portions is disposed above the integrated portion of the substantially U-shaped seal section. Further, the present invention provides a substantially U-shaped cross section.
The main body is made of rigid PVC, and the seal part with a substantially U-shaped cross section is made of soft P.
The Grechan as described above, which is a VC .

Further, according to the present invention, the main body having a substantially U-shaped cross section may be formed so that the peripheral surface and the end surface of the glass are subjected to an external pressure such as an impact or the like.
Hardness to withstand and protect against water and moisture such as power and moisture,
And elasticity for clamping the peripheral surface and the end surface of the glass.
Hard or function and strength as both at least
And / or the thickness of the semi-rigid material and the U-shaped section
The Grechan according to the above, characterized in that it has dimensions and shapes . Furthermore, the present invention provides a double-glazed glass with Grechan, wherein the double-glazed glass is provided around the entire periphery or a part of the double-glazed glass so as to surround the peripheral surface and the end surface of the double-glazed glass. To provide.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION Here, in a Grechan used to surround a peripheral edge surface and an end surface of a glass plate, a laminated glass or a double glazing, a hard and / or semi-circular material surrounding the peripheral edge surface and an end surface is used. At least a rigid substantially U-shaped cross-section main body, and a semi-rigid or / and soft substantially U-shaped cross-section seal provided at both ends on the opening side of the U-shaped cross-section main body; The substantially U-shaped seal portion is at least softer than the substantially U-shaped cross-section main body, and the cross-section is substantially equal in the integrated portion in which the substantially U-shaped cross-section main body and the substantially U-shaped cross-section seal face. The following is the reason why the convex portion on the surface of the U-shaped seal portion is sandwiched and fitted so as to be surrounded by the concave portion on the surface of the main body portion having a substantially U-shaped cross section and integrated. is there.

First, as for a hard or / and semi-rigid U-shaped cross section main body surrounding the peripheral edge surface and the end surface of the glass plate, laminated glass or double-glazed glass, the peripheral edge surface and the end surface of the glass are defined as follows. Hardness and / or semi-hardness that has a function and strength to have at least the hardness to withstand and protect against external pressure and external force such as impact and water and moisture such as moisture, and the elasticity to sandwich the peripheral surface and the end surface of the glass. And the thickness, dimensions, and shape of the main body portion having a U-shaped cross section.

Next, the semi-rigid or / and soft cross-section substantially U-shaped seal portion provided at both ends on the opening side of the U-shaped cross section main body portion has a sealing property with the glass outer surface. Needless to say, a semi-hard or / and soft material and a substantially U-shaped section having a function and strength such that at least the sealing and locking properties are provided at the opening edge flange of the sash when attaching the various types of glass with Grechan to the sash. Character sheet
The thickness, size and shape of the metal part.

Further, the hard or / and semi-rigid U-shaped cross-section main body and the semi-rigid or / and soft substantially U-shaped cross-section seal are both synergistic with each other. In order to exhibit and exhibit the above-mentioned function and to have strength, the substantially U-shaped seal section is at least softer than the substantially U-shaped main body section, and moreover, the substantially U-shaped main body section is provided. And a portion facing the substantially U-shaped seal portion is formed into an integrated portion of at least two colors by integral molding, for example, co-extrusion molding. The convex part is provided on the surface of the main part, the concave part is provided on the surface of the main body part having a substantially U-shaped cross section, and the convex part is fitted and fitted in a sandwiching manner so as to be wrapped by the concave part. is there.

In particular, in the integrated portion, the convex portion on the surface of the seal portion having a substantially U-shaped cross section is fitted into the concave portion on the surface of the main body portion having a substantially U-shaped cross section so as to be fitted in a sandwiching manner so as to be integrated. In this case, bending and / or tensile strength at the integrated portion and repetitive strength thereof are provided, and the integrated portion is not a simple integrated surface but a volumetric body in an inclined manner. Try to spread the stress,
Furthermore, the seal portion having a substantially U-shaped cross section in the integrated portion can be protected by the tip of the main body portion having a substantially U-shaped cross section.

Further, the soft U-shaped seal portion having a substantially U-shaped cross section has a tongue-shaped portion and a flange portion for a seal at both front end regions of the U-shape corresponding to the inner surface side, and a U-shaped seal member corresponding to the outer surface. The tongue-shaped portion and the flange portion to appropriately develop a fitting force to the glass. In addition, when the double-glazed glass with Grechan is attached to a sash, it is aligned with the sash opening edge flange by the protruding piece-shaped portion and the groove-shaped portion when the double-glazed glass with Grechan is attached to the sash. The tongue-like portion and the flange portion further exert a pressing force against the glass surface by the action force of providing the sealing property and the locking property together with the sealing property, and also aligning and locking with the sash opening edge flange. Is expressed and Balance of being able allowed to increase sexual and retention appropriate also those having both.

Also, the boundary between the tongue-like portion and the flange portion is disposed above the integrated portion of the substantially U-shaped seal portion, so that the tongue is formed. The piece-like portion forms a sucker-like shape with the flange portion and acts to exhibit more sealing and holding properties, and is more effective by the projecting piece-like portion and the groove-like portion when attached to a sash. become.

Further, a hard or / and / or semi-rigid main body portion having a substantially U-shaped cross-section is provided with a hard or / and / or semi-rigid / and / or soft protruding portion on the inner surface, so that the glass surface is formed. In some cases, it is preferable to arrange them in a rib-like shape on the side surface and a rail-like shape on the end surface side, and to arrange them as appropriate.

Further, a through hole may be provided at the center bottom of the main body having a substantially U-shaped cross section so as to serve as a drain, for example. Further, since the above-mentioned Grechan is provided around the entire periphery or a part of the double-glazing so as to surround the peripheral surface and the end surface of the double-glazing, the mounting operation of the Grechan is extremely simple and at the site. In addition to eliminating the complicated work in, it becomes a double-glazed glass with Grechan, especially its movement,
Transport and further storage, handling such as mounting work to the sash is extremely simple and efficient, and the glass is protected and there is no damage, etc., and it is safer. This has a particularly significant effect.

Needless to say, tempered glass, strengthened glass, bent glass, glass with various functional films, colored glass and the like can be used as glass, laminated glass or double-glazed glass. Further, the glass may be inorganic or organic, or a combination thereof.

As described above, according to the Grechan and the double-glazed glass with Grechan of the present invention, at least the main body portion and the U-shaped seal portion have a substantially U-shaped cross section and a softness. In the integrated portion of the substantially U-shaped cross-section main body portion and the substantially U-shaped cross-section seal portion, the convex portion is specially fitted in a sandwich shape so as to be wrapped by the concave portion, and integrated. By making it a Grechan, the integrated part becomes a volume integral in an inclined manner, thereby bending the Grechan itself and making the tensile strength extremely excellent, and effectively bringing long-term durability, When attached to glass, especially double-glazed glass, it is a Grechan that can be easily and efficiently worked and can be configured efficiently, and its holding power can be sufficient,
The protection of the peripheral surface and the end face of the glass, which are the functions of the substantially U-shaped main body section and the substantially U-shaped seal section, at the peripheral edge and the end face of the glass, and greatly enhances the seal such as water resistance. That is, even if the double-glazed glass with Grechan becomes large in weight and large in area, it can be easily moved, transported and stored, and the mounting work on the sash can be slid with the substantially U-shaped main body section. It is extremely excellent in handling, such as a smooth fit, and it is also useful for maintaining the quality of the double glazing, especially long-term quality, with increased strength and durability, high water honey and high mounting force. For example, it is possible to provide useful Grechan and double glass with Grechan.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to an embodiment. However, the present invention is not limited to such an embodiment.

FIG. 1 is a side sectional view showing one embodiment of Grechan in the present invention. In the figure, Grechan 1 has a substantially U-shaped cross-section main body 2 made of hard PVC surrounding the peripheral surface and the end surface of a double-layer glass or the like, and soft PVC provided at both ends on the opening side of the U-shaped cross-section main body. And a substantially U-shaped seal portion 3 which is at least softer than the substantially U-shaped main body portion. A tongue-shaped portion 4 for sealing and a flange portion 5 are provided, and a protruding piece-shaped portion 6 and a groove-shaped portion 7 for locking to a sash opening edge flange are provided in a U-shaped central back region which hits an outer surface. Further, in the integrated portion 8 in which the substantially U-shaped cross-section main body portion and the substantially U-shaped cross-section sealed portion face each other, the convex portion 9 of the substantially U-shaped cross-section sealing surface is replaced with the substantially U-shaped cross section. At least two pieces are fitted so as to be fitted so as to be wrapped by the concave portion 10 of the U-shaped main body surface.
Grechan integrated by color co-extrusion.

It is preferable that the boundary portion between the tongue-like portion 4 and the flange portion 5 is disposed above the integrated portion 8 of the substantially U-shaped seal section. It is. Although not shown, a rigid or semi-rigid or / and soft protruding portion made of PVC is appropriately disposed on the inner surface of the main body portion having a substantially U-shaped cross section made of the rigid PVC. And the main body 2 having a substantially U-shaped cross section.
A through hole may be appropriately arranged in the central bottom portion 11 of the first embodiment.

Next, FIG. 2 is a partially enlarged side sectional view showing an embodiment of the double-glazed glass with Grechan when the Grechan in the present invention shown in FIG. 1 is mounted on the double-glazed glass.

In the figure, the double-glazed glass 12 with Grechan is a spacer 15 filled with a desiccant 14 between inner surfaces of a pair of glass plates 13 opposed to each other at regular intervals and held by a primary seal material 16. A double-layered glass in which a gap formed between the outer periphery of the spacer and the inner surface of the glass plate is filled with a secondary seal material 17.
The Grechan 1 is mounted so as to surround the peripheral edge surface and the end surface of the 18 so as to be firmly held by the pressing force between the tongue-like portion 4 and the flange portion 5 by the spring force of the main body 2 having a substantially U-shaped cross section.

When surrounding the peripheral edge surface and the end surface of the double-glazed glass, the double-glazed glass may be provided around the entire periphery or a part of the double-glazed glass. In some cases, for example, the Grechans on each side may be attached using a tape or the like so as to be fixed at the corner portion of the double-glazed glass.

[0046]

As described in detail above, according to the present invention,
The strength of Grechan itself can be remarkably excellent, and the long-term durability can be effectively brought about, so that the work can be performed simply and efficiently when attached to the glass or the like, particularly to a double-layer glass. Needless to say, the holding force can be made sufficient, and the resistance to the peripheral surface side and the end surface of the glass, which serve as the substantially U-shaped cross-section main body and the substantially U-shaped cross-section seal, respectively. The protection against damage and the like and the seal such as water resistance are extremely enhanced, so that even if the double-glazed glass with Grechan increases in weight and area, it is easy to move, transport and store, and The handling of the sash is smooth, and the handling is extremely excellent, and the quality of the double glazing, especially for a long It can provide such Gurechan and Gurechan with double glazing.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of Grechan in the present invention.

FIG. 2 is a partially enlarged side sectional view showing one embodiment of a double glass with Grechan when the Grechan in the present invention shown in FIG. 1 is mounted on the double glass.

[Description of Signs] 1 Grechan 2 Cross-section substantially U-shaped main body 3 Cross-section substantially U-shaped seal part 4 Tongue-shaped part 5 Flange part 6 Projection-shaped part 7 Groove part 8 Integrated part 9 Convex part 10 Concave part 11 Center bottom 12 Double glass with Grechan 13 Glass plate 18 Double glass

Continuation of the front page (56) References JP-A-8-135319 (JP, A) Jikken Sho 49-36429 (JP, Y1) Jigyo Sho 59-4152 (JP, Y2) (58) Fields investigated (Int) .Cl. ⁷ , DB name) E06B 3/54-3/66

Claims (6)

(57) [Claims] 1. A glass plate body, a Gurechan used as to surround the periphery surface and the end face of the laminated glass or the double glazing, hard surrounding the peripheral edge surface and end or / and semi-rigid section At least a substantially U-shaped main body and a semi-rigid or / and soft substantially U-shaped seal provided at both ends on the opening side of the U-shaped cross-section main body;
In the Grechan whose cross-section substantially U-shaped seal portion is at least softer than the cross-section substantially U-shaped main body portion, the integrated portion in which the substantially U-shaped cross-section main body portion and the substantially U-shaped cross-section sealed portion face each other. It is formed by co-extrusion, and is fitted in a sandwiching manner so as to wrap the convex portion of the substantially U-shaped seal section surface with the concave section of the substantially U-shaped main body section surface, thereby forming an integrated portion. Grechan, characterized by being formed. 2. The U-shaped seal portion having a substantially U-shaped cross section has a tongue-like portion for sealing and a flange portion at both ends of the U-shape corresponding to the inner surface, and a U-shape corresponding to the outer surface. At the center back area of the sash opening edge flange to reduce the spring force of
The pressing force of the tongue-like part and the flange part
Edge and end faces of laminated or double-glazed glass
The Grechan according to claim 1, further comprising a protruding piece and a groove for holding. 3. The device according to claim 1, wherein a boundary between said tongue-like portion and said flange portion is located above an integrated portion of said substantially U-shaped seal portion. A Grechan according to claim 1 or claim 2. 4. A substantially U-shaped cross-section main body is made of rigid PVC,
The Grechan according to any one of claims 1 to 3, wherein the substantially U-shaped seal portion is made of soft PVC . 5. A main body part having a substantially U-shaped cross section is formed on a periphery of glass.
External and external forces such as impacts and moisture
Hardness to withstand and protect any water and moisture, and the periphery of the glass
At least the elasticity that clamps the part and end faces
Hard and / or semi-rigid
The Grechan according to any one of claims 1 to 4, wherein the Grechan is made of a material and a thickness, a size, and a shape of a U-shaped main body section . 6. The multi-layer glass is provided with the Grechan according to any one of claims 1 to 5 around the entire periphery or a part of the multi-layer glass so as to surround a peripheral edge surface and an end surface of the multi-layer glass. Double-glazed glass with Grechan.