Window glass with glazing channel

Abstract

To provide a window glass provided with a glazing channel capable of stably holding the window glass.SOLUTION: A bottom surface 52A and a side wall 52C of a main body 52 constituting a glazing channel 50 are formed of a hard member having a hardness of 80 to 100 degrees as measured by a type A durometer in accordance with JIS K 6253 3 (2012), a seal section constituting the glazing channel 50 is formed of a soft member having a hardness of 50 to 80 degrees (exclusive of 80), and the glazing channel 50 is bonded at its side wall 52C to a window glass with an adhesive 60.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to window glass with a glazing channel.

Background Art

[0002] When attaching window glass to a window frame, a glazing channel is attached to the peripheral edge of the window glass. In Patent Document 1, it is disclosed that a glazing channel including a rigid resin portion having a U-shaped cross-section with an opening and soft resin portions integrally formed with the rigid resin portion and provided at both ends of the opening of the rigid resin portion is attached to a two-layer laminated glass.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional window glass with a glazing channel, when any main surface of the window glass (for example, the main surface on the outdoor side) receives a pressure such as wind pressure, the position of the window glass moves (displaces) in the direction of the pressure, pressing the soft resin portion located in the direction of the pressure. Since the soft resin portion is composed of a soft member, the soft resin portion deforms. On the other hand, since the window glass tends to move away from the soft resin portion located on the side opposite to the direction of the pressure, the holding force of the window glass by the soft resin portion weakens. As a result, there is a problem that it is difficult to stably hold the window glass.

[0005] The present invention has been made in view of such circumstances, and provides a window glass with a glazing channel that can stably hold the window glass.

Means for Solving the Problems

[0006] One embodiment of the glazing channel window glass of the present invention, in order to achieve the object of the present invention, includes a window glass and a glazing channel attached to the periphery of the window glass, the glazing channel comprising a main body having an L-shaped cross-section having a bottom portion, a corner portion in contact with the bottom portion, and a side wall portion erected from the corner portion, and a sealing portion extending diagonally upward from the upper part of the side wall portion toward the main surface of the window glass, the bottom portion and the side wall portion being made of a hard material having a hardness of 80 degrees or more and 100 degrees or less as measured with a Type A durometer in accordance with JIS K6253-3 (2012), the sealing portion being made of a soft material having a hardness of 50 degrees or more and less than 80 degrees, and the side wall portion of the glazing channel being bonded to the window glass with an adhesive.

[0007] One embodiment of the window glass with a glazing channel of the present invention, in order to achieve the object of the present invention, includes a window glass and a glazing channel attached to the periphery of the window glass, the glazing channel comprising a main body having a U-shaped cross-section having a bottom surface, a pair of corner surfaces that contact both ends of the bottom surface, and a pair of side wall surfaces erected from the pair of corner surfaces, and a pair of sealing parts that extend diagonally upward from the upper parts of the pair of side wall surfaces toward both main surfaces of the window glass, the bottom surface and the pair of side wall surfaces being made of a hard material having a hardness of 80 degrees or more and 100 degrees or less as measured with a Type A durometer in accordance with JIS K6253-3 (2012), the pair of sealing parts being made of a soft material having a hardness of 50 degrees or more and less than 80 degrees, and the pair of side wall surfaces of the glazing channel being bonded to the window glass with an adhesive.

[0008] In one embodiment of the present invention, the adhesive is preferably a double-sided adhesive tape.

[0009] In one embodiment of the present invention, it is preferable that the glazing channel further has a support portion on the surface of the sealing portion made of a hard material having a hardness of 80 degrees or more and 100 degrees or less.

[0010] In one embodiment of the present invention, it is preferable that the glazing channel has a bottom end made of a soft material with a hardness of 50 degrees or more and less than 80 degrees at the end opposite to the end that contacts the corner portion.

[0011] In one embodiment of the present invention, the bottom portion preferably has at least a first bottom portion and a second bottom portion, and the first bottom portion and the second bottom portion are connected via a connecting portion made of a soft material having a hardness of 50 degrees or more and less than 80 degrees.

[0012] In one embodiment of the present invention, it is preferable that the connecting portion has a recessed portion.

[0013] In one embodiment of the present invention, it is preferable that the recessed portion is formed on both the inner surface facing the peripheral edge of the window glass and the outer surface opposite to the inner surface in the longitudinal cross-section of the connecting portion.

[0014] In one embodiment of the present invention, the sealing portion has a projection that extends diagonally downward from the upper part of the side wall toward the opposite side of the main surface of the window glass, and when the window glass with a glazing channel is installed in a window frame, the sealing portion is preferably elastically deformed toward the main surface of the window glass by the projection being pressed against the open end formed at the upper part of the window frame.

[0015] In one embodiment of the present invention, the side wall portion of the glazing channel has an error-absorbing portion that is pressed against the main surface side of the window glass by an open end formed at the top of the window frame when the window glass with the glazing channel is installed in the window frame, and it is preferable that the thickness of the error-absorbing portion is greater at the bottom than at the top.

[0016] In one embodiment of the present invention, it is preferable that the error absorption portion has at least two stepped surfaces in the vertical direction.

[0017] In one embodiment of the present invention, it is preferable that the error absorption portion has a tapered surface that is inclined with respect to the vertical direction.

[0018] In one embodiment of the present invention, it is preferable that the rigid member is made of any material selected from the group consisting of polyvinyl chloride, ABS resin, AES resin, chloroprene rubber, ethylene-propylene-diene rubber, silicone rubber, and thermoplastic elastomer.

Advantages of the Invention

[0019] According to the present invention, the performance of the window glass can be stably maintained.

Brief Description of the Drawings

[0020] [Figure 1] FIG. 1 is a longitudinal sectional view of a window glass with a glazing channel according to the first embodiment. [Figure 2] FIG. 2 is a sectional view of the glazing channel shown in FIG. 1. [Figure 3] FIG. 3 is a longitudinal sectional view of a window glass with a glazing channel according to the second embodiment. [Figure 4] FIG. 4 is a longitudinal sectional view of the glazing channel shown in FIG. 3. [Figure 5] FIG. 5 is a sectional view showing a form when the glazing channel shown in FIG. 4 is wound up. [Figure 6] FIG. 6 is a longitudinal sectional view of a window glass with a glazing channel according to the third embodiment. [Figure 7] FIG. 7 is a longitudinal sectional view of the glazing channel shown in FIG. 6. [Figure 8] FIG. 8 is a longitudinal sectional view of a window glass with a glazing channel according to the fourth embodiment. [Figure 9] FIG. 9 is a longitudinal sectional view of the glazing channel shown in FIG. 8. [Figure 10] FIG. 10 is an explanatory view in which a step is formed in the error absorption portion of the glazing channel. [Figure 11] FIG. 11 is an explanatory view in which an inclined surface is formed in the error absorption portion of the glazing channel.

Embodiments for Carrying Out the Invention

[0021] Embodiments of the present invention will be described below with reference to the attached drawings. The present invention is described by the following embodiments. Modifications can be made in many ways without departing from the scope of the present invention, and other embodiments other than those described herein can be used. Therefore, all modifications within the scope of the present invention are included in the claims.

[0022] Furthermore, in this specification, "up," "down," "left," and "right," which indicate direction and position, refer to "up," "down," "left," and "right" when a window pane with a glazing channel is installed in a window frame of a building.

[0023] <First Embodiment> The first embodiment will be described with reference to Figures 1 and 2. Figure 1 is a main vertical cross-sectional view showing the window glass 10 with glazing channels according to the first embodiment attached to the window frame 80, and Figure 2 is a vertical cross-sectional view of the pair (separate type) glazing channels 50, 50 shown in Figure 1. In this specification, the cross-section of the lower edge of the upper, lower, left, and right edges of the window glass 10 with glazing channels will be shown and described. Also, in Figure 1, "outside" and "inside" are shown.

[0024] In the first embodiment, a window glass with glazing channels 10 is shown, in which the above-described separate-type glazing channels 50, 50 are attached to a window glass composed of two layers of double-glazed glass 20. Note that the glazing channels 50 in this example are not limited to double-glazed glass 20, and can be suitably attached to a single glass plate, or to other types of window glass such as wired glass with fire-resistant properties. Furthermore, the double-glazed glass 20 is not limited to two layers, but may consist of three or more layers.

[0025] The window glass with glazing channels 10 according to the first embodiment, as shown in Figure 1, comprises a double-glazed glass 20 and glazing channels 50, 50. The glazing channels 50, 50 are attached to the side edges 22a, 24a corresponding to the peripheral edges of the first glass plate 22 and the second glass plate 24 that constitute the double-glazed glass 20. The window glass with glazing channels 10 is then attached, for example, to a groove 82 formed in a window frame 80 via a setting block (not shown).

[0026] As shown in Figure 1, the double-glazed glass 20 comprises a first glass plate 22 and a second glass plate 24, and a spacer 26 that separates the first glass plate 22 and the second glass plate 24. The first glass plate 22 and the second glass plate 24 and the spacer 26 define an air gap 28. Since the spacer 26 is positioned along the side edges of the inner main surfaces of the first glass plate 22 and the second glass plate 24, the distance between the first glass plate 22 and the second glass plate 24 is kept constant by the spacer 26.

[0027] The first glass plate 22 and the second glass plate 24 are plates of inorganic glass such as soda-lime glass, aluminosilicate glass, aluminoborosilicate glass, or alkali-free glass.

[0028] Furthermore, the first glass plate 22 and the second glass plate 24 may be glass plates that have undergone strengthening treatment, such as physical strengthening or chemical strengthening. Also, the first glass plate 22 and the second glass plate 24 may be known laminated glass, which is made by bonding multiple glass plates together with an interlayer in between.

[0029] Furthermore, the first glass plate 22 and the second glass plate 24 may be glass plates on which a functional film is formed to improve their function. Examples of functional films include low-emission films (Low-E films), anti-fogging films, anti-fouling films, or water-repellent films. Moreover, it is preferable that the first glass plate 22 and the second glass plate 24 are glass plates with a thickness of, for example, 1 mm to 24 mm.

[0030] The inner main surface of the first glass plate 22 and the surface of the spacer 26 facing this inner main surface are bonded together by the primary seal 30. Similarly, the inner main surface of the second glass plate 24 and the surface of the spacer 26 facing this inner main surface are bonded together by the primary seal 30. Furthermore, a concave groove is defined between the lower surface of the spacer 26 (opposite the hollow layer 28) and the inner main surfaces of the first glass plate 22 and the second glass plate 24, and the secondary seal 32 is filled into this groove. The secondary seal 32 is in contact with the primary seals 30, 30, and the hollow layer 28 is sealed from the outside air by the primary seals 30, 30 and the secondary seal 32.

[0031] The spacer 26 is hollow and has a cavity. Multiple ventilation holes 34 are provided at predetermined intervals on the upper surface of the spacer 26 (the side facing the hollow layer 28) along the longitudinal direction of the spacer 26 (the direction perpendicular to the plane of the paper). The ventilation holes 34 are formed to penetrate the cavity of the spacer 26. This connects the cavity of the spacer 26 to the hollow layer 28. Furthermore, since the cavity of the spacer 26 is filled with a desiccant 36 such as granular zeolite, the gas inside the hollow layer 28 is dried by the desiccant 36 through the ventilation holes 34.

[0032] The spacer 26 may be a metal spacer mainly made of aluminum, or it may be a resin spacer. In the case of a resin spacer, its surface may be covered with an aluminum sheet. When using a resin spacer, it may not be necessary to use the primary seals 30, 30 and the secondary seal 32.

[0033] The primary seal 30 is preferably based on butyl rubber or polyisobutylene that is not crosslinked, and contains fillers such as carbon black for coloring and reinforcement. Since the primary seal 30 does not solidify and only has adhesive properties, the adhesion between the spacer 26 and the first glass plate 22 and the second glass plate 24 in the so-called double-glazed glass 20 is ensured by the secondary seal 32.

[0034] Examples of secondary seals 32 include polysulfide (manufactured by Yokohama Rubber Co., Ltd.: product name: Hamatite SM9000) and silicone (manufactured by Toray Dow Corning Co., Ltd.: product name: S Suitable candidates include those based on curable elastomers such as E936, urethane (manufactured by Sanyurec Co., Ltd.: product name: SANYU IGS205), and those that have been appropriately modified to exhibit adhesion between the first glass plate 22 and the second glass plate 24.

[0035] Next, the glazing channels 50, 50 shown in Figure 2 will be described with reference to Figure 1. Since these two glazing channels 50, 50 have the same configuration, they will be described using the same reference numerals.

[0036] As shown in Figure 2, the glazing channel 50 comprises a main body portion 52 and a sealing portion 54. The main body portion 52 has a bottom surface portion 52A, a corner portion 52B in contact with the bottom surface portion 52A, and a side wall portion 52C erected from the corner portion 52B, and has an L-shaped vertical cross-section. The bottom surface portion 52A and the side wall portion 52C are in a substantially orthogonal positional relationship. The corner portion 52B is located between the bottom surface portion 52A and the side wall portion 52C and has the function of protecting the edge portion of the double-glazed glass 20.

[0037] Here, the main body portion 52 (bottom portion 52A, corner portion 52B, and side wall portion 52C) is made of a rigid member having a hardness of 80 degrees or more and 100 degrees or less as measured with a Type A durometer in accordance with JIS K6253-3 (2012). Preferably, this rigid member is made of a material selected from the group consisting of polyvinyl chloride, ABS resin, AES resin, chloroprene rubber, ethylene-propylene-diene rubber, silicone rubber, and thermoplastic elastomer. Furthermore, the hardness is preferably 90 degrees or more and 99 degrees or less, more preferably 95 degrees or more and 99 degrees or less, and even more preferably 96 degrees or more and 99 degrees or less. By constructing the main body portion 52 with a rigid member (also called a semi-rigid member) having such hardness, the main body portion 52 is made which has both the rigidity (hardness) required for the glazing channel 50 and the flexibility required for stable attachment to the window frame 80. In the following explanation, when the term "hardness" is used, it refers to "hardness measured using a Type A durometer in accordance with JIS K6253-3 (2012)."

[0038] The sealing portion 54 extends diagonally upward from the upper part of the side wall portion 52C toward the main surface 20A of the double-glazed glass (window glass) 20. When the glazing channel 50 is attached to the double-glazed glass 20, as shown in Figure 1, the sealing portion 54 is pressed against the main surface 20A of the double-glazed glass 20 and adheres tightly to the main surface 20A of the double-glazed glass 20. At this time, the sealing portion 54 and the upper part of the side wall portion 52C (the part above the adhesive 60 described later) elastically deform outward from the main surface 20A of the double-glazed glass 20. As a result, when the window glass 10 with the glazing channel is attached to the window frame 80, the sealing portion 54 and the upper part of the side wall portion 52C adhere tightly to the opening end 80A of the window frame 80 and its vicinity. This ensures that the window glass 10 with the glazing channel is stably held relative to the window frame 80.

[0039] Furthermore, the sealing portion 54 has a projection 55 that extends diagonally downward from the upper part of the side wall portion 52C toward the opposite side from the main surface 20A of the double-glazed glass (window glass) 20. When the window glass 10 with a glazing channel is installed in the window frame 80 shown in Figure 1, the projection 55 of the sealing portion 54 is pressed against the open end 80A formed at the top of the window frame 80, causing it to elastically deform toward the main surface 20A of the double-glazed glass 20, as shown by the dashed line in Figure 1. By providing such a projection 55 in the sealing portion 54, the adhesion and watertightness of the glazing channel 50 to the double-glazed glass 20 are improved in cooperation with the window frame 80.

[0040] The sealing portion 54 is made of a soft material having a hardness of 50 degrees or more and less than 80 degrees. Naturally, a soft resin that is softer than the main body portion 52 is preferred for this soft material. In this case, a flame-retardant soft resin is also preferred.

[0041] The main body portion 52 and the sealing portion 54 are preferably formed integrally by extrusion molding. In this case, the material used for the main body portion 52 and the sealing portion 54 is an extrusion-molded resin material. Various materials can be used as examples of such resin materials, such as thermoplastic resin materials, thermosetting resin materials, and moisture-curing resin materials. Among these, thermoplastic resin materials are preferred in view of the fact that they solidify immediately simply by allowing them to cool after extrusion, and among these, flame-retardant polyvinyl chloride resin materials that satisfy the hardness described above are particularly preferred.

[0042] Furthermore, it is preferable that the glazing channel 50 has a support portion 56 attached to the surface of the seal portion 54 (the lower surface of the seal portion 54 in Figures 1 and 2). The support portion 56 extends diagonally upward from the upper end of the vertically extending side wall portion 52C toward the main surface 20A of the double-glazed glass 20. This support portion 56 is made of a hard material with a hardness of 80 degrees or more and 100 degrees or less, and has the function of reinforcing the strength of the seal portion 54. Since the support portion 56 is molded integrally with the side wall portion 54C, the support portion 56 can be easily placed on the seal portion 54. Also, since the support portion 56 is located on the lower surface of the seal portion 54, the interface between the seal portion 54 and the support portion 56 is not exposed to the outside, and as a result, a window glass 10 with a glazing channel that has a good appearance can be constructed. Furthermore, since the support portion 56 does not protrude relative to the sealing portion 54, even if the main surface 20A of the double-glazed glass 20 is subjected to pressure such as wind pressure, or if the main surface 20A is subjected to force due to objects such as packaging materials hitting the main surface 20A, the rigid support portion 56 does not come into contact with the double-glazed glass 20, making it less likely for the double-glazed glass 20 to break and allowing the double-glazed glass 20 to be held stably.

[0043] Furthermore, it is preferable that the glazing channel 50 has a tongue-shaped portion 58 in addition to the sealing portion 54 described above. The tongue-shaped portion 58 extends diagonally downward from the upper part of the side wall portion 52C toward the main surface 20A of the double-glazed glass 20. When the glazing channel 50 is attached to the double-glazed glass 20, the tongue-shaped portion 58 is pressed against the main surface 20A of the double-glazed glass 20, as shown in Figure 1, and adheres tightly to the main surface 20A of the double-glazed glass 20. It is preferable that this tongue-shaped portion 58, like the sealing portion 54, is made of a soft material (for example, a soft polyvinyl chloride resin material) with a hardness of 50 degrees or more and less than 80 degrees, and is integrally molded by extrusion molding.

[0044] When the main body 52, sealing portion 54, and tongue-shaped portion 58 are made of a resin material such as polyvinyl chloride resin, the hardness can be adjusted by the amount of plasticizer added. Generally, the hardness decreases as the amount of plasticizer increases. Examples of plasticizers include phthalates (DOP, DINP, DIDP, DUP), adipic acid esters, polyester plasticizers, epoxy plasticizers, trimellitic acid plasticizers, and phosphoric acid plasticizers. By adding 5 to 45 parts plasticizer to the amount of resin material (with the amount of resin material set to 100), the hardness can be set to 100 degrees or less. For hard members with a hardness of 80 degrees or more and 100 degrees or less, it is preferable to add 5 to less than 25 parts plasticizer, and for soft members with a hardness of 50 degrees or more and less than 80 degrees, it is preferable to add 25 to 45 parts plasticizer. Furthermore, the hardness of the main body 52, sealing portion 54, and tongue-shaped portion 58 can be adjusted by changing the molecular structure of the resin material. For example, hardness increases with increasing the molecular weight of the constituent materials. If the resin material is a rubber-based material, the hardness can also be adjusted by adding mineral oil or other substances.

[0045] As shown in Figure 1, the glazing channel 50 configured as described above has its side wall portion 52C bonded to the main surface 20A of the double-glazed glass 20 by adhesive 60. This constitutes the window glass 10 with a glazing channel according to the first embodiment.

[0046] Here, as an example of the adhesive 60, double-sided adhesive tape is used. In this case, it is preferable that the inner surface 52D of the side wall portion 52C to which the double-sided adhesive tape is attached has a flat portion of at least 3 mm in the vertical direction, for example. This enhances the adhesive strength between the glazing channel 50 and the main surface 20A of the double-glazed glass 20. The adhesive 60 is not limited to the double-sided adhesive tape described above, and other adhesives such as epoxy adhesives or hot melt adhesives may be used. However, if double-sided adhesive tape is used, the curing time (curing time) of the adhesive can be eliminated, so the window glass 10 with glazing channels can be assembled in a short time.

[0047] Furthermore, the glazing channel 50 has bottom end portions 62 at the end opposite to the end of the bottom portion 52A that contacts the corner portion 52B. These bottom end portions 62 are made of a soft material with a hardness of 50 degrees or more and less than 80 degrees. These bottom end portions 62 will be described later.

[0048] On the other hand, as shown in Figure 1, the window frame 80 has a groove 82 for accommodating the window glass 10 with a glazing channel and a pair of claws 84 that engage with the glazing channel 50, and has a U-shaped vertical cross-section. The pair of claws 84 are formed facing each other at the opposing opening ends 80A of the window frame 80 and function as a member for determining the opening width of the window frame 80. In other words, the inner surface of the claws 84 serves as a reference for measuring the distance from the window frame 80.

[0049] Next, the operation of the window glass 10 with a glazing channel according to the first embodiment will be described.

[0050] In the first embodiment, as shown in Figure 1, the window glass with glazing channels 10 has glazing channels 50, 50 separately attached to the side edges 22a, 24a of the first glass plate 22 and the second glass plate 24, and the double-glazed glass 20 is held in place by the sealing portions 54, 54. In this state, for example, if either main surface 20A of the double-glazed glass 20 (for example, the main surface on the outside) is subjected to pressure such as wind pressure, the double-glazed glass 20 moves (displaces) in the direction of the pressure (towards the inside), pressing against the right-side sealing portion 54 located in the direction of the pressure. At this time, the sealing portion 54, which is made of a soft material, deforms. On the other hand, the left-side sealing portion 54, located on the opposite side of the direction of the pressure, and the double-glazed glass 20 try to move away from each other, and in this case, there is a problem that the holding force of the double-glazed glass 20 by the left-side sealing portion 54 weakens.

[0051] Therefore, in order to solve the above problem, according to the first embodiment, a configuration is adopted in which the hard side wall portion 52C of the glazing channel 50 is bonded to both main surfaces 20A of the double-glazed glass 20 with adhesive (double-sided adhesive tape) 60. As a result, when the double-glazed glass 20 is subjected to pressure, the left-side sealing portion 54, which is located on the opposite side of the direction of pressure, and the double-glazed glass 20 do not try to separate from each other, and the holding force of the double-glazed glass 20 by the left-side sealing portion 54 is maintained at a constant level. As a result, the window glass 10 with a glazing channel of the first embodiment can stably hold the double-glazed glass (window glass) 20.

[0052] In addition, as another embodiment, a member other than the side wall portion 52C, for example, the tongue-shaped portion 58, may be bonded to the main surface 20A of the double-glazed glass 20 with an adhesive. However, since the tongue-shaped portion 58 is made of a soft material, the above effects cannot be fully obtained. In contrast, in the first embodiment, the hard side wall portion 52C is bonded to the main surface 20A of the double-glazed glass 20 with an adhesive 60, so the holding force of the double-glazed glass 20 by the sealing portion 54 becomes constant, and the double-glazed glass 20 can be held stably.

[0053] Next, we will describe some other embodiments of window glass with glazing channels.

[0054] <Second Embodiment> Figure 3 is a longitudinal cross-sectional view showing the main components of the window glass 100 with a glazing channel according to the second embodiment. Figure 4 is a longitudinal cross-sectional view of the glazing channel 110 applied to the second embodiment. Components common to the first embodiment are denoted by the same reference numerals.

[0055] The difference between the first and second embodiments is that in the first embodiment, separate glazing channels 50, 50 of the same shape are attached to the double-glazed glass 20, whereas in the second embodiment, an integrated glazing channel 110 is attached to a single glass plate 102 that constitutes the window glass. Other components are the same and will not be explained.

[0056] As shown in Figure 4, the main body 112 of the glazing channel 110 has a bottom surface 52A, a pair of corner sections 52B, 52B that are in contact with both ends of the bottom surface 52A, and a pair of side wall sections 52C, 52C that are erected from the pair of corner sections 52B, 52B, and has a U-shaped vertical cross-section. The bottom surface 52A has a first bottom surface 52Aa and a second bottom surface 52Ab, and the first bottom surface 52Aa and the second bottom surface 52Ab are connected via a connecting section 114. The connecting section 114 is made of a soft material (for example, a soft polyvinyl chloride resin material) with a hardness of 50 degrees or more and less than 80 degrees, and is integrally molded with the main body 112 and the sealing section 54 by extrusion molding.

[0057] In the second embodiment, similar to the first embodiment, the glazing channel 110 has rigid sidewalls 52C, 52C bonded to both main surfaces 102A, 102A of the glass plate 102 by adhesive 60, 60. As a result, when the glass plate 102 is subjected to pressure, the sealing portion 54 located on the opposite side of the direction of pressure and the glass plate 102 do not attempt to separate from each other, so the holding force of the glass plate 102 by the sealing portion 54 is maintained at a constant level. Thus, the window glass 100 with a glazing channel of the second embodiment can stably hold the glass plate (window glass) 102. Furthermore, if there is an error in the thickness of the glass plate 102, the sealing portion 54 and the upper part of the sidewalls 52C (the part above the adhesive 60) elastically deform outward from both main surfaces 102A, 102A of the glass plate 102, thereby absorbing the error.

[0058] Here, as shown in Figures 3 and 4, it is preferable that the connecting portion 114 has an indentation (groove) 115. If this indentation 115 is formed on both the lower surface (opposite side from the glass plate 102) and the upper surface (side of the glass plate 102) of the main body portion 112, the U-shaped glazing channel 110 in Figure 4 can be easily changed to the flat plate shape in Figure 5 by using the indentation 115 shown in Figure 4 as a bending fulcrum and bending the side wall portions 52C on both sides in a direction away from each other. Furthermore, the shape of the glazing channel 110 can be easily changed from the shape in Figure 5 to the shape in Figure 4. It is preferable to apply the adhesive (double-sided adhesive tape) 60 to the side wall portions 52C when the shape is as shown in Figure 5. A primer may also be used at this time.

[0059] The configuration shown in Figure 5 is a preferred configuration, for example, when the glazing channel 110 is wound onto a roll (not shown). When the glazing channel 110 in the configuration of Figure 5 is wound onto a roll, the flexibility of the connecting portion 114 prevents the main body portion 112 from undergoing plastic deformation, and the connecting portion 114 will not spontaneously break even if it is repeatedly opened and closed.

[0060] The recessed portion 115 may be formed only on the upper surface of the main body portion 112 (the inner surface on the side facing the peripheral edge of the glass plate 102 in the longitudinal cross-section of the connecting portion 114) or only on the lower surface (the outer surface opposite to the inner surface). However, from the viewpoint of easily changing the shape of the glazing channel 110 between the shape shown in Figure 4 and the shape shown in Figure 5, it is preferable that it be formed on both the upper and lower surfaces of the main body portion 112.

[0061] Furthermore, the connecting portion 114 can be separated at the recessed portion 115, which is thinner. In other words, when the connecting portion 114 is broken at the recessed portion 115, the bottom end portions 62 shown in Figures 1 and 2 are provided at the mutually opposing ends of the first bottom portion 52Aa and the second bottom portion 52Ab. That is, the separate-type glazing channel 50 shown in Figures 1 and 2 is identical to the form obtained by separating the glazing channel 110 shown in Figures 3 to 5 at the recessed portion 115. In short, by providing a flexible connecting portion 114 on the main body portion 112, the shape can be easily changed from an integrated-type glazing channel 110 to a separate-type glazing channel 50.

[0062] <Third Embodiment> Figure 6 is a longitudinal cross-sectional view showing the main components of the window glass 120 with a glazing channel according to the third embodiment. Figure 7 is a longitudinal cross-sectional view of the glazing channel 130 applied to the third embodiment. Components common to the first and second embodiments are denoted by the same reference numerals.

[0063] The difference between the first and third embodiments is that in the first embodiment, separate glazing channels 50, 50 of the same shape are attached to the double-glazed glass 20 of the window glass 10 with a glazing channel, whereas in the third embodiment, an integrated glazing channel 130 is attached to the double-glazed glass 20 of the window glass 120 with a glazing channel. The other components are the same, so their explanation will be omitted.

[0064] As shown in Figure 7, the main body 132 of the glazing channel 130 has a bottom surface 52A, a pair of corner sections 52B, 52B that are in contact with both ends of the bottom surface 52A, and a pair of side wall sections 52C, 52C that are erected from the pair of corner sections 52B, 52B, and has a U-shaped vertical cross-section. The bottom surface 52A has a first bottom surface 52Aa, a second bottom surface 52Ab, and a third bottom surface 52Ac, with the first bottom surface 52Aa and the third bottom surface 52Ac connected via a connecting section 114, and the second bottom surface 52Ab and the third bottom surface 52Ac connected via a connecting section 114.

[0065] In the third embodiment, as in the first embodiment, the glazing channel 130 has rigid side walls 52C, 52C that are bonded to both main surfaces 20A of the double-glazed glass 20 by adhesive 60, 60. As a result, when the double-glazed glass 20 is subjected to pressure, the sealing portion 54 located on the opposite side of the direction of pressure and the double-glazed glass 20 do not try to separate from each other, so the holding force of the double-glazed glass 20 by the sealing portion 54 is maintained at a constant level. Thus, the window glass 120 with a glazing channel in the third embodiment can also stably hold the double-glazed glass 20.

[0066] In the third embodiment, the bottom portion 52A of the main body 132 is configured such that three bottom portions (first bottom portion 52Aa, second bottom portion 52Ab, and third bottom portion 52Ac) are connected via two connecting portions 114, 114. Therefore, as in the third embodiment, it can be used as an integrated glazing channel 130 without separating the two connecting portions 114, 114, and as in the fourth embodiment below, it can also be used with one of the two connecting portions 114, 114 separated.

[0067] <Fourth Embodiment> Figure 8 is a longitudinal cross-sectional view showing the main components of the window glass 140 with a glazing channel according to the fourth embodiment. Figure 9 is a longitudinal cross-sectional view of the glazing channels 150 and 152 applied to the fourth embodiment. Components common to the third embodiment are denoted by the same reference numerals.

[0068] The difference between the third and fourth embodiments is that in the third embodiment, the glazing channel window glass 120 has an integrated glazing channel 130 attached to the double-glazed glass 20, whereas in the fourth embodiment, the glazing channel window glass 140 has separate glazing channels 150 and 152 attached to a window glass 160 that is wider than the double-glazed glass 20 of the third embodiment. Other configurations are the same, so their explanation will be omitted.

[0069] In the window glass 160, a laminated glass 162 and a single glass plate 164 are separated by a spacer 26, forming a double-glazed structure. The laminated glass 162 consists of two glass plates 166 and 168 joined together via an interlayer 170. Alternatively, a thicker fire-resistant glass may be used instead of the laminated glass 162.

[0070] On the other hand, the glazing channels 150 and 152 are formed by dividing the connecting portion 114 between the second bottom portion 52Ab and the third bottom portion 52Ac in the glazing channel 130 shown in Figure 7. The glazing channel 150 is bonded to the left main surface 160A of the window glass 160 via adhesive 60, and the glazing channel 152 is bonded to the right main surface 160A of the window glass 160 via adhesive 60.

[0071] In the window glass 140 with glazing channel of the fourth embodiment, the window glass 160 can be held stably, similar to the other embodiments described above.

[0072] Furthermore, as shown in the second to fourth embodiments, the glazing channels 110, 130, 150, and 152 have main bodies 112 and 132, each having at least a first bottom surface 52Aa and a second bottom surface 52Ab. By connecting the first bottom surface 52Aa and the second bottom surface 52Ab via a connecting portion 114 made of a soft material with a hardness of 50 degrees or more and less than 80 degrees, the glazing channels can be applied to window panes with different widths, as well as to different types of window panes 160 as shown in Figure 8, without making significant changes to the shape of the glazing channels.

[0073] Incidentally, window panes with glazing channels are manufactured to have a certain degree of width variation due to manufacturing tolerances for the glass plate and spacers. Even when glazing channels are attached to window panes with such varying widths, it becomes necessary to install those glazing channel-equipped window panes into a window frame.

[0074] To satisfy these requirements, the glazing channel preferably has the following configuration. The following explanation will be given with reference to the glazing channel 110 shown in Figure 3, and using the enlarged cross-sectional view of the main part of the glazing channel 110 shown in Figure 10.

[0075] As shown in Figure 10, the side wall portion 52C of the glazing channel 110 has an error absorption portion 53 on the side opposite to the window glass 102 (see Figure 3). This error absorption portion 53 is the portion that is pressed against the main surface 102A of the window glass 102 by the opening end 80A formed at the top of the window frame 80 when the window glass 100 with the glazing channel (see Figure 3) is attached to the window frame 80. It is preferable that this error absorption portion 53 is formed in a region along the vertical direction at the top of the side wall portion 52C, and has a length L2 that is at least twice the vertical length L1 of the opening end 80A. It is also preferable that the lower part of the error absorption portion 53 is thicker than the upper part, and in the example in Figure 10, the above different thicknesses are achieved by having two stepped surfaces 53A and 53B in the vertical direction.

[0076] With a glazing channel 110 equipped with such an error absorption section 53, for example, as shown in Figure 10(a), in the case of a window glass 100 with a glazing channel whose width dimension is smaller than the specified value (see Figure 3), the stepped surface 53A that protrudes outward can be brought into contact with the opening end 80A of the window frame 80, allowing the window glass 100 with a glazing channel whose width dimension is smaller to the window frame 80. Conversely, as shown in Figure 10(b), in the case of a window glass 100 with a glazing channel whose width dimension is larger than the specified value, the stepped surface 53B that is located inside the stepped surface 53A can be brought into contact with the opening end 80A of the window frame 80, allowing the window glass 100 with a glazing channel whose width dimension is larger to the window frame 80. In other words, by configuring the lower part of the error absorption section 53 to be thicker than the upper part, window glass 100 with glazing channels of different width dimensions can be attached to the window frame 80. Note that the stepped surfaces are not limited to two surfaces, but may be three or more.

[0077] In the embodiment shown in Figure 10, an error absorption section 53 having stepped surfaces 53A and 53B has been described. However, instead of the stepped surfaces 53A and 53B, an error absorption section 57 having a tapered surface 57A inclined in the vertical direction may be used, as shown in Figure 11. In this error absorption section 57 as well, the lower part is thicker than the upper part.

[0078] With a glazing channel 110 equipped with such an error absorption section 57, for example, as shown in Figure 11(a), in the case of a window glass 100 with a glazing channel whose width dimension is smaller than the specified value (see Figure 3), the thicker lower tapered surface 57A of the tapered surface 57A can be brought into contact with the opening end 80A of the window frame 80, making it possible to install the window glass 100 with a glazing channel whose width dimension is smaller than the specified value. Conversely, as shown in Figure 11(b), in the case of a window glass 100 with a glazing channel whose width dimension is larger than the specified value, the thinner upper tapered surface 57A of the tapered surface 57A can be brought into contact with the opening end 80A of the window frame 80, making it possible to install the window glass 100 with a glazing channel whose width dimension is larger than the specified value. In other words, by configuring the lower part of the error absorption section 57 to be thicker than the upper part, window glass 100 with glazing channels of different width dimensions can be installed in the window frame 80.

[0079] Although Figures 10 and 11 illustrate error absorption sections 53 and 57 with a thicker lower section than the upper section, error absorption sections with a thinner lower section than the upper section can also absorb errors in the width dimension of window glass with glazing channels.

[0080] Although a window glass with a glazing channel according to one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment. Various modifications and improvements, such as combinations or substitutions with some or all of other embodiments, are possible within the scope of the present invention. [Explanation of symbols]

[0081] 10... Window glass with glazing channel, 20... Double-glazed glass, 20A... Main surface, 22... First glass plate, 22a... Side edge, 24... Second glass plate, 24a... Side edge, 26... Spacer, 28... Hollow layer, 30... Primary seal, 32... Secondary seal, 34... Ventilation hole, 36... Desiccant, 50... Glazing channel, 52... Main body, 52A... Bottom surface, 52Aa... First bottom surface, 52Ab... Second bottom surface, 52Ac... Third bottom surface, 52B... Corner section, 52C... Side wall section, 52D... Inner surface, 53... Error absorption section, 54... Seal section, 56... Support section, 57... Error absorption section, 58... Tongue-shaped section, 60... Adhesive, 80...Window frame, 80A...Opening end, 82...Groove, 84...Claw, 100...Window glass with glazing channel, 102...Glass plate, 110...Glazing channel, 112...Main body, 114...Connecting part, 115...Recessed part, 120...Window glass with glazing channel, 130...Glazing channel, 132...Main body, 140...Window glass with glazing channel, 150...Glazing channel, 152...Glazing channel, 160...Window glass, 160A...Main surface, 162...Laminated glass, 164...Glass plate, 166...Glass plate, 168...Glass plate, 170...Interlayer

Claims

1. The window glass and the glazing channel attached to the periphery of the window glass are included. The aforementioned glazing channel is A main body having an L-shaped cross-section, having a bottom surface, a corner surface in contact with the bottom surface, and a side wall surface erected from the corner surface, A sealing portion extending diagonally upward from the upper part of the side wall toward the main surface of the window glass, A tongue-shaped portion extending diagonally downward toward the main surface of the window glass from the upper part of the side wall portion, below the sealing portion, Equipped with, The bottom portion and the side wall portion are made of a hard material having a hardness of 80 degrees or more and 100 degrees or less as measured with a Type A durometer in accordance with JIS K6253-3 (2012). The sealing portion is made of a soft material having a hardness of 50 degrees or more and less than 80 degrees. A window glass with a glazing channel, wherein the glazing channel is directly bonded to the main surface of the window glass by an adhesive that is bonded only at a height below the lower end of the tongue-shaped portion of the side wall and between the tongue-shaped portion and the corner portion.

2. The window glass and the glazing channel attached to the periphery of the window glass are included. The aforementioned glazing channel is A main body having a U-shaped cross-section, having a bottom surface, a pair of corner sections that are in contact with both ends of the bottom surface, and a pair of side wall sections that are erected from the pair of corner sections, A pair of sealing portions extending diagonally upward from the upper part of the pair of side wall portions toward both main surfaces of the window glass, A pair of tongue-shaped portions extending diagonally downward toward both main surfaces of the window glass from the upper part of the pair of side wall portions, below the pair of sealing portions, Equipped with, The bottom portion and the pair of side wall portions are made of a hard material having a hardness of 80 degrees or more and 100 degrees or less as measured with a Type A durometer in accordance with JIS K6253-3 (2012). The pair of sealing portions are made of a soft material having a hardness of 50 degrees or more and less than 80 degrees. A window glass with a glazing channel, wherein the glazing channel is directly bonded to the main surface of the window glass by a pair of adhesives bonded only at a height below the lower ends of the pair of tongue-shaped portions of each of the pair of side wall portions, and at a position between the pair of tongue-shaped portions and the pair of corner portions.

3. The adhesive is a double-sided adhesive tape, and the entire surface of the double-sided adhesive tape is directly adhered to the main surface of the window glass. Window glass with glazing channel according to claim 1 or 2.

4. The glazing channel further comprises a support portion on the surface of the sealing portion, which is made of a hard material having a hardness of 80 degrees or more and 100 degrees or less, as described in any one of claims 1 to 3.

5. The glazing channel has a bottom end made of a soft material with a hardness of 50 degrees or more and less than 80 degrees at the end opposite to the end that contacts the corner portion of the bottom portion, as described in claim 1.

6. The window glass with a glazing channel according to claim 2, wherein the bottom portion has at least a first bottom portion and a second bottom portion, and the first bottom portion and the second bottom portion are connected via a connecting portion made of a soft material having a hardness of 50 degrees or more and less than 80 degrees.

7. The window glass with a glazing channel according to claim 6, wherein the connecting portion has a recessed portion.

8. The recessed portion is formed on both the inner surface facing the peripheral edge of the window glass and the outer surface opposite to the inner surface in the longitudinal cross-section of the connecting portion, according to claim 7, for a window glass with a glazing channel.

9. The sealing portion has a projection that extends diagonally downward from the upper part of the side wall portion toward the opposite side from the main surface of the window glass, The window glass with a glazing channel according to any one of claims 1 to 8, wherein the sealing portion is elastically deformed toward the main surface side of the window glass when the protruding portion is pressed upward from below by an external force.

10. The side wall portion of the glazing channel has an error-absorbing portion that can be pressed against the main surface side of the window glass by an external force. The error-absorbing portion is thicker at the bottom than at the top, as described in any one of claims 1 to 9, for a window glass with a glazing channel.

11. The error-absorbing portion has at least two stepped surfaces in the vertical direction, as described in claim 10, for the window glass with a glazing channel.

12. The error-absorbing portion has a tapered surface inclined in the vertical direction, as described in claim 10 for window glass with a glazing channel.

13. The window glass with a glazing channel according to any one of claims 1 to 12, wherein the rigid member is made of any material selected from the group consisting of polyvinyl chloride, ABS resin, AES resin, chloroprene rubber, ethylene-propylene-diene rubber, silicone rubber, and thermoplastic elastomer.

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