JPH11210334A - Glass pane having bead material and installing structure therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve drain performance by adhering bead materials composed of an elastic material to the peripheral edge of a rectangular glass pane, and butting the bead materials in the lower side intermediate part. SOLUTION: A cross section of bead materials 6 is formed of the fixing part 6a stuck to the surface of plate glass 4, for example, double glazing 1, the projecting part 6b having the hollow part on the glass surface side and the sealing part 6c to block up the hollow part as well as to contact with the glass surface. The beads 6 are stuck to the glass 4 by extrusively molding an elastic resin material, the lower side intermediate part of the glass 1 is formed as the molding starting end part 12, and the molding finish part making a round of the periphery of the glass 1 is formed as the molding finish part 13. The seam part 11 is formed by thermally fusing the end parts 12, 13. In that case, in the seam part 11, the joint part 11a is formed by thermally fusing only the part exposed from a sash frame when the glass 1 is fitted in the sash frame, and the unexposed part is formed as the non-bonding part 11b. Therefore, rainwater entering the hollow part can be drained from the non-bonding part, and an installing structure can be also easily manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass plate mounted on a window of a building and the like, and more particularly to a glass plate having a bead material made of an elastic material adhered to a peripheral portion thereof and a mounting structure thereof.

[0002]

2. Description of the Related Art When a glass plate is mounted in a window sash of a building, elasticity is applied to the periphery of the glass plate in order to protect the peripheral portion of the glass plate and enhance the adhesion with the sash and securely hold the glass plate inside the sash. A bead made of wood is mounted.

[0003] Such a bead material can be continuously mounted as a single bead material along the four sides of the glass plate while being extruded using a resin material extruder (for example, see Japanese Unexamined Patent Publication No. -207188). The bead material extruded with a predetermined cross-sectional shape from the extruder is joined by joining a molding start end from the extruder and a molding end end after making a round around the glass plate periphery to form a joint.

On the other hand, as a glass plate such as a window glass, a double-layer glass having a large heat insulating property and an excellent dew condensation preventing effect is used. A bead material is similarly attached to such a double-glazed glass along four peripheral edges.

FIG. 2 is a cross-sectional view of an end portion of the double-glazed glass in a state where the double-glazed glass to which the bead material is mounted is mounted in a sash. The double-glazed glass 1 is formed by integrating two plate glasses 4a and 4b at a predetermined interval via a spacer 3 containing a desiccant 2 to form an airtight space 5 inside. A bead material 6 is adhered to the outer peripheral surface of each of the glass sheets 4a and 4b. The double glazing 1 provided with this bead material 6
It is inserted into a sash frame 7 made of aluminum or the like.

The bead material 6 includes a fixing portion 6a attached to the glass surface with an adhesive, a convex portion 6b forming a hollow portion 8 on the glass surface side continuously with the fixing portion 6a, and a convex portion 6b. A sealing portion 6c closing the hollow portion 8 is provided continuously with the portion 6b. The end 6d of the fixing portion 6a has a bent shape and covers the end surface of the plate glass to protect the glass end. When the multi-layer glass 1 is inserted into the sash frame 7, the upper end of the sash frame 7 presses the back surface of the convex portion 6 b of the bead material 6 to elastically deform the glass surface side, and the end of the sealing portion 6 c is made of glass. Press against the surface. By providing the convex portion 6b in this way,
Even if the thickness of the multi-layer glass 1 changes, the convex portions 6
This convex portion 6b is elastically deformed within the range of the protruding height of b, thereby securely holding the double-glazed glass 1 in the sash frame 7. In this case, the end portion of the sealing portion 6c is not bonded to the glass surface, but is left free simply pressed. Thereby, when the convex portion 6b is pushed from the back side and is elastically deformed, it can move upward along the glass surface while being pressed. The reason for adopting such a configuration is that if the end of the sealing portion 6c is adhered and fixed to the glass surface, when the convex portion 6b is pressed and elastically deformed, the inclined portion on the fixing portion 6a side is deformed. This is because there is a possibility that the adhesive portion may be peeled off due to expansion and a peeling force acting on the fixing portion 6a. Such a peeling force is relieved by the pressing and moving of the sealing portion 6c,
It does not act on the fixed part side, so that peeling of the fixed part can be prevented.

As described above, since the convex portion 6b is formed in the bead material 6 and the hollow portion 8 is formed between the bead material 6 and the glass surface, the bead material 6 is elastically deformed and can be applied to glass having different thicknesses. In particular, if the present invention is applied to a multi-layer, low-volume, multi-layer, multi-layer glass having a variety of sheet thicknesses, versatility is enhanced, parts management is facilitated, and costs are reduced.

[0008]

However, as described above, in a glass plate provided with a bead material particularly suitable for a double-layer glass, a sealing portion 6c for closing a hollow portion 8 for absorbing a difference in plate thickness is used. Since the end portion is in a free state without being adhered to the glass surface, rainwater may enter the hollow portion 8 of the bead material 6 on the glass surface outside the building and may accumulate in the hollow portion. When rainwater accumulates inside the bead material as described above, the bead material itself is deteriorated, and the adhesive function of the adhesive is reduced, so that the bead material is easily peeled.

The bead material is formed in a continuous state along the four peripheral edges of the glass sheet by the resin extruder as described above, and the forming start end and the end are joined to form a joint. It is formed. This joint is shown in FIG.
(A) As shown in (B), it is formed at the corner of the glass plate 10. (A) shows that one end side surface of the bead material 6 is attached to the end surface of the other bead material 90 at the corner of the glass plate 10.
(B) is an example in which each end of the bead material is similarly joined at a corner of the glass plate 10 at an angle of 45 degrees.

However, if the seam portion 11 of the bead material 6 is located at the corner of the glass plate 10 as in the example of FIG. 4, the finishing process is troublesome, and the finish of the seam portion is changed to the appearance of other portions. In order to finish in the same manner as described above, a complicated finishing process is required, and it is difficult to automate the process, which causes an increase in cost.

In addition, the seam of such a bead material is as follows:
Only the portion exposed from the sash frame is joined in appearance, and the portion hidden by the sash frame is not bonded, so that a drainage function can be provided. By forming the joint having the drainage function in this way, it is possible to discharge the rainwater that has entered the hollow portion of the bead material. However, if the seam of such a bead material is located at the corner of the glass plate, the rainwater that has entered the bead material at the vertical edge of the corner portion is drained satisfactorily as it is, but at the vertical edge of the opposite corner portion. Since the entered rainwater is far away from the joint, there is a possibility that the rainwater may not be discharged well depending on the inclination of the lower edge or the like.

The present invention has been made in consideration of the above points, and has as its object to provide a glass plate with a bead material which is easy to manufacture and has improved drainage properties such as rainwater, and a structure for mounting the glass plate.

[0013]

In order to achieve the above object, according to the present invention, one continuous bead material made of an elastic material is adhered along at least four peripheral edges of at least one surface of a rectangular glass plate, In a glass plate with a bead material formed with a butt portion between the end portions of the bead material at one place of the peripheral edge,
Provided is a glass plate with a bead material, characterized in that a butt portion of the bead material is formed in an intermediate portion of the four sides of the peripheral edge which is arranged on the lower side when mounted on a building.

According to this structure, since the seam portion of the bead material is formed at the middle portion of the lower side of the glass plate, drainage is improved, and rainwater enters the bead material at the vertical edges and corners on both the left and right sides. In such a case, or when rainwater enters the lower bead material, such rainwater can be satisfactorily discharged.

Further, since the butting portion is located at the middle portion of the straight lower side, the ends of the bead material may be joined by butting, and a complicated finishing process or joining as in the case where the butting portion is provided at the corner portion. Ends can be easily joined together without the need for a process.Furthermore, the finishing process can be simplified, the manufacturing process can be simplified and automation can be facilitated, and the appearance can be improved without labor. Become.

[0016]

FIG. 1 is a perspective view of a double glazing with a bead material according to an embodiment of the present invention.

A bead member 6 made of a resilient resin material such as a soft vinyl chloride resin is mounted on four peripheral edges of both surfaces of the double-glazed glass 1. As described with reference to FIG. 2 above, the shape of the bead material 6 itself is a fixing portion 6a that is adhered to the glass plate surface with an adhesive, and a hollow portion 8 is formed on the glass plate surface side continuously with the fixing portion 6a. (See FIG. 2). The protruding portion 6b forms a sealing portion 6c that continuously covers the protruding portion 6b and closes the hollow portion 8. The end 6d of the fixing portion 6a is bent so as to cover the end face and the end face of the glass plate and to protect the end.

Such a bead material 6 is simultaneously extruded from a resin material into a predetermined shape using an extruder as described above, and is simultaneously applied to the peripheral edges of both surfaces of the double-glazed glass 1 to which an adhesive has been applied in advance. Affixed. In this case, extrusion molding is started from the middle part of the lower side of the double-glazed glass (the side that becomes the lower edge side when the double-glazed glass is mounted on the window of the building), and from the forming start end 12 as indicated by the arrow in the figure. As described above, one round of the periphery of the multi-layer glass is continuously made in order, and the position returns to the original forming start end portion 12 to complete the forming of the bead material. (See FIG. 3,
Details will be described later). The bead material forming end 13 and the first bead material forming start 12 are joined by heat fusion.

As a result, the seam portion 11 of the bead material is formed substantially at the center of the lower middle portion. In this case, only the sealing portion 6c of the bead material 6 exposed from the sash frame and the protruding part of the protruding portion 6b are heat-fused to form the joint portion 11a when the double-glazed glass is inserted into the sash frame. And the convex portion 6
The non-bonded portion 11b of the portion b (see FIG. 2) on the fixed portion 6a side is not heat-sealed, and the rainwater that has entered the hollow portion 8 (FIG. 2) through the non-bonded portion flows out. It is possible to enhance drainage without impairing the appearance.

As shown in FIG. 2, such a double glazing 1 is inserted into a sash frame 7 such as a building window so that a joint portion is located on a lower side to constitute a window glass.

According to the above-described example, the joint portion 11 is formed by heat-welding the butted portion of the molding start end 12 and the molding end end 13. The joint may be provided with an additional adhesive between the molding start end 12 and the molding end end 13. In this case, a slight gap is formed between the molding start end 12 and the molding end end 13 for interposing an adhesive.

Alternatively, the forming start end 12 and the forming end 13 may be simply abutted without performing heat fusion or interposing an adhesive. Although both ends are not fused or bonded to each other, they are bonded and fixed to the glass plate, so that there is no problem in use. In such a case, the molding start end 12 and the molding end 13 may be brought into contact with each other, or they may be joined so that a slight gap is formed between them.

On the other hand, if a gap is provided between the molding start end 12 and the molding end end 13, water and air will flow in and out of this gap after being mounted on the sash frame. There is a possibility that. In addition, the appearance may be impaired. For this reason, as described above,
Alternatively, it is preferable to separately interpose something like a ridge. Further, when an adhesive is interposed, a joint portion and a non-joint portion are provided at the joint portion in order to allow rainwater to flow out as in the case of heat fusion. When an adhesive is interposed, a non-joined portion cannot be secured as expected due to the expansion of the adhesive, and the adhesive interposing step becomes complicated. On the other hand, the formation of the seam portion by heat fusion is particularly preferable since it can be performed by a simpler operation than in the adhesive intervening step and the formation of the gap can be reliably prevented.

In the above example, the resin material is directly extruded from the extruder onto the glass plate surface, and the bead material is adhered to the entire periphery of the glass plate. Not only this, but a bead material extruded separately can be adhered to the glass plate surface in a later process.However, in view of the ability to follow the corners of the glass plate and the high adhesive strength to the glass plate surface, extrusion is not possible. It is preferable to integrate the bead material with the glass plate surface while molding.

The shape of the bead material can be appropriately determined in consideration of the mounting property to the sash frame. Since the present invention is made for the purpose of enhancing drainage of rainwater or the like, even if rainwater has a shape that easily enters between the bead material and the glass plate surface, the glass plate is inserted into the sash frame. Preferably, the shape is such that the bead material does not easily peel off from the glass plate surface after mounting. From these circumstances, Figure 2
Are preferred.

In particular, such a shape can exert a great effect when the glass plate mounted on the sash frame is a double-layer glass structure. In other words, in the case of double glazing,
There are various specifications including not only the variation of the thickness of the glass plate but also the variation of the thickness of the hollow layer. Therefore, a dimensional error is likely to occur depending on the variation. Therefore, in order to be able to absorb these dimensional errors and to provide sufficient holding force after mounting, in the above-mentioned bead material, a fixing portion bonded to the glass plate surface, and a convex portion which can form a hollow portion are used. In particular, a shape having a convex portion and a sealing portion continuously pressed against the glass plate surface is particularly preferable as a bead material for a double glazing.

The following are more preferable as the shape of the bead material. That is, as shown in FIG. 1, it has a shape that covers the edge ridge of the glass plate, and also a shape that covers the edge ridge at the corner of the glass plate.

When the glass plate is transported or mounted on a sash frame, the glass plate may collide with peripheral objects. In this case, particularly, the edge ridge of the glass plate, particularly the edge ridge at the corner, is likely to collide. For this reason, there is a possibility that the glass plate may be hung at the collision portion, and in order to prevent such a collision, it is preferable to cover the collision-prone portion with a bead material.

The above-described bead material having a shape that covers the corner portion of the glass plate and the ridge portion of the end face is formed as follows. First, a method of sticking the bead material 6 to the glass plate surface while extruding the above-described resin material is shown in FIG. The multilayer glass 1 and the die 17 provided in the extruder 18 for discharging the resin material relatively move so that the die 17 is along the side of the multilayer glass 1. In this example, the multilayer glass 1 is supported by a support device 16 having a traveling platform 14 that moves in the X-axis direction parallel to the glass plate surface and a lifting platform 15 that moves in the Y-axis direction.
It is movable in the −Y direction.

On the other hand, the die 17 has an opening 17a having a predetermined sectional shape of the bead material 6 for discharging the resin material. And this opening part 17a is provided rotatably so that it may always open toward the side direction of the double glazing 1 to which a bead material is stuck. In this manner, the traveling platform 14 and the lifting platform 15 of the support device 16 are alternately moved, and the die is rotated at the corner of the multilayer glass 1 so that the die 17 is moved along each side of the multilayer glass 1. 1 can be relatively moved. In FIG. 3A, reference numeral 19 denotes a rotation control unit of the die, reference numeral 20 denotes a rotation control unit 19, a discharge amount of the resin material and the traveling platform 14, and the lifting platform 1.
5 is a control device for controlling the movement of No. 5.

In the case where the ridge of the end face of the double glazing 1 is covered with a bead material, the straight portion of the double glazing 1 is
It is only necessary that the shape of the opening 17a be such that the resin material can be extruded also into the edge line of the end face. But,
At the corner of the double-glazed glass 1, the die 17
By simply rotating, the corner portion and the die 17 interfere with each other. Therefore, the opening 17a is always in the double glazing 1
The relative movement at the corner portion is set as shown in FIG.

In this case, from the vicinity of the corner portion, the movement of the double glazing 1 is changed from a single movement in the X or Y direction to a combined movement in the X and Y directions. Specifically, what moved only the traveling platform 14 or the elevator 15 was changed to
From the vicinity of the corner, both are moved, and at this timing, the die is rotated so as to gradually change the direction of the opening 17a. Further, after passing through the corner, the die 17 is kept rotating, and the traveling platform 14 and the lifting platform 15 are moved. When the direction of the opening 17a finally changes by 90 °, the traveling platform 14 or the lifting platform 15 alone is moved. To move. In this way, a bead material that covers the ridge of the end face can be formed over the entire periphery of the double-glazed glass including the corner.

[0033]

As described above, in the present invention, since the seam portion of the bead material is formed in the middle portion of the lower side of the glass plate, the drainage is improved, and the vertical edges and corners on both the left and right sides are improved. Such rainwater can be satisfactorily discharged when rainwater enters the bead material or when rainwater enters the lower bead material.

Further, since the seam portion is located at the intermediate portion of the lower side of the straight line, the ends of the bead members having the same cross-sectional shape need only be joined to each other and joined, which is troublesome as in the case where the seam portion is provided at the corner portion. The end portions can be easily joined together without the need for finishing and joining processes, and the finishing process can be facilitated, the manufacturing process can be simplified, and automation can be easily performed using a known extruder. This makes it possible to improve the appearance without applying any heat. In this case, the appearance, finish and sash fit of the four corners can all be the same, and the adhesiveness of the corners,
The quality performance, such as water tightness, air tightness, and fitting with the sash, is the same for the four corners, emphasizing the continuity and unity with the sides, enhancing the technical aesthetics of the product and increasing the reliability. .

Although the present invention can be applied to a single-layer glass, the effect of the present invention is particularly enhanced when the present invention is applied to a double-layer glass with a bead material having a bulging shape and forming a hollow inside.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is an end cross-sectional view of a double glazing.

3A and 3B are an overall configuration diagram and an essential part enlarged conceptual diagram illustrating an example of a method of forming a bead material according to the present invention.

FIG. 4 is an explanatory view in which a bead seam portion is arranged at a corner portion.

[Explanation of symbols]

1: double-glazed glass, 2: dried material, 3: spacer, 4: plate glass, 5: airtight space, 6: bead material, 6a: fixed part, 6
b: convex portion, 6c: sealing portion, 6d: end portion, 7: sash frame, 8: hollow portion, 11: joint portion, 11a: joint portion, 1
1b: Non-joined part.

Claims (4)

[Claims] 1. A continuous bead material made of an elastic material is adhered along at least four peripheral edges of at least one surface of a rectangular glass plate, and ends of the bead materials are joined at one point of the peripheral edge. A glass sheet with a bead material formed with a bead material, wherein a butt portion of the bead material is formed at an intermediate part of a side arranged on a lower side when mounted on a building among the four peripheral edges. With glass plate. 2. The glass sheet with a bead material according to claim 1, wherein said glass sheet is made of a double-layer glass. 3. The bead material has a fixing portion joined to a glass plate surface, a convex portion forming a hollow portion on the glass plate surface continuously with the fixing portion, and an end portion of the convex portion. The sealing portion is pressed against the glass plate surface to close the hollow portion, and the sealing portion is pressed against the glass plate surface in accordance with the elastic deformation of the convex portion. The glass plate with a bead material according to claim 1 or 2, wherein the glass plate has a movable structure. 4. The method according to claim 1, wherein the peripheral portion of the glass plate is inserted into a sash frame, and the end of the sash frame presses the convex portion of the bead material to bring the sealing portion into close contact with the glass surface. The mounting structure for a glass plate with a bead material according to claim 1, 2 or 3.