JP7564508B2 - Glazing channel, glazing channel roll, and window glass with glazing channel - Google Patents

Description

The present invention relates to a glazing channel, a glazing channel roll, and a window glass with a glazing channel.

When attaching a window glass to a window frame, a glazing channel is attached to the periphery of the window glass. Patent Document 1 discloses a glazing channel that includes a hard resin part with a U-shaped cross section and an opening, and soft resin parts that are integrally molded with the hard resin part and provided at both ends of the opening of the hard resin part.

On the other hand, the main body of the gray channel disclosed in Patent Document 2 is made of a soft, elastic resin material, and has a hollow space inside, which makes it easy to crush in the vertical direction and allows it to be wound up.

JP 2007-211524 A JP 2004-124390 A

However, the reelable glazing channel disclosed in Patent Document 2 has a problem in that, for example, when it is wound onto a reel, the hollow portion is crushed, causing a curl. As a result, the above-mentioned glazing channel cannot be used without adjusting the curl, meaning that it cannot be used immediately after being unwound from the reel.

The present invention was made in consideration of these circumstances, and provides a glazing channel and glazing channel roll that can be rolled up and has minimal curl when unrolled, as well as a window glass with a glazing channel.

In order to achieve the object of the present invention, one embodiment of the glazing channel of the present invention comprises a main body having a U-shaped longitudinal section, which has a bottom portion, a pair of corner portions contacting both edges of the bottom portion, and a pair of side walls erected from the pair of corner portions, the main body being attached to the edge of the window glass, and a pair of seal portions extending obliquely upward from the upper portions of the pair of side walls toward the main surface of the window glass, the bottom portion having a plurality of divided bottom portions and at least one connecting portion that connects the plurality of divided bottom portions to form the bottom portion, the divided bottom portion and the pair of side walls 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), and the pair of seal portions and the connecting portion being made of a soft material having a hardness of 50 degrees or more and less than 80 degrees as measured by the above method.

In one embodiment of the glazing channel of the present invention, the connecting portion preferably has a recessed portion with a reduced thickness on at least one of the upper and lower sides.

In one embodiment of the glazing channel of the present invention, it is preferable that the connecting portion can be separated at the recessed portion.

In one embodiment of the glazing channel of the present invention, the bottom portion preferably has a first divided bottom portion and a second divided bottom portion as divided bottom portions, and a first connecting portion that connects the first divided bottom portion and the second divided bottom portion as a connecting portion.

In one embodiment of the glazing channel of the present invention, the bottom portion preferably has a first divided bottom portion, a second divided bottom portion, and a third divided bottom portion as divided bottom portions, and a first connecting portion connecting the first divided bottom portion and the third divided bottom portion, and a second connecting portion connecting the second divided bottom portion and the third divided bottom portion as connecting portions.

In one embodiment of the glazing channel of the present invention, the length of each of the multiple divided bottom sections is preferably longer than the length of each of the pair of sealing sections.

One form of the glazing channel of the present invention comprises a pair of tongue-shaped portions that extend obliquely downward from the inside of a pair of side wall portions toward the main surface of the window glass, and it is preferable that the length of each of the multiple divided bottom surface portions is longer than the length of each of the pair of tongue-shaped portions.

In one embodiment of the glazing channel roll of the present invention, the glazing channel of the present invention is wound into a roll shape in order to achieve the object of the present invention, and the glazing channel of the present invention is wound into a roll shape in a state in which the longitudinal cross-sectional shape of the main body is changed from a U-shape to a W-shape by separating a pair of side walls in directions away from each other with at least one connecting portion as a bent portion.

In one embodiment of the glazing channel roll of the present invention, it is preferable that the sealed portion faces outward and is wound into a roll.

To achieve the object of the present invention, one form of window glass with a glazing channel of the present invention comprises a glazing channel of the present invention and a window glass bonded to a pair of side walls of the glazing channel by an adhesive.

The present invention provides a glazing channel and glazing channel roll that can be rolled up and has minimal curl when unrolled, as well as a window glass with a glazing channel.

FIG. 1 is a vertical cross-sectional view of a main part of a glazing channel according to a first embodiment. FIG. 2 is a longitudinal sectional view of an essential part of a window glass with a glazing channel, illustrating a mode of use of the glazing channel shown in FIG. FIG. 3 is a vertical cross-sectional view of the glazing channel shown in FIG. 1 configured as a separate type glazing channel. FIG. 4 is a longitudinal sectional view of a main portion of a window glass with a glazing channel, illustrating a mode of use of the glazing channel shown in FIG. FIG. 5 is a cross-sectional view showing a state in which the glazing channel shown in FIG. 1 is wound up on a reel. FIG. 6 is a perspective view of a glazing channel roll according to an embodiment. FIG. 7 is a cross-sectional view of a main part of the glazing channel shown in FIG. 1 when it is wound up on a reel. FIG. 8 is a vertical cross-sectional view of a main part of a glazing channel according to the second embodiment. FIG. 9 is a longitudinal sectional view of an essential part of a window glass with a glazing channel, illustrating a mode of use of the glazing channel shown in FIG. FIG. 10 is a vertical cross-sectional view of the glazing channel shown in FIG. 8 configured as a separate type glazing channel. FIG. 11 is a longitudinal sectional view of an essential part of a window glass with a glazing channel, illustrating a mode of use of the glazing channel shown in FIG.

Below, an embodiment of the present invention will be described with reference to the attached drawings. In this specification, the terms "up", "down", "left" and "right" that indicate directions and positions refer to "up", "down", "left" and "right" when a window glass with a glazing channel is attached to a window frame of a building.

First Embodiment
Fig. 1 is a longitudinal sectional view of a main part of a glazing channel 10 according to the first embodiment. Fig. 2 is a longitudinal sectional view of a main part of a window glass 100 with a glazing channel according to the first embodiment, showing a mode of use of the glazing channel 10 shown in Fig. 1.

Figure 3 is a vertical cross-sectional view of the glazing channel 10 shown in Figure 1, divided at the recessed portion 14 of the connecting portion 12 (see Figure 1) described below to form a pair of (separate) glazing channels 50, 50. Figure 4 is a vertical cross-sectional view of the main parts of a window glass 150 with a glazing channel according to the second embodiment, showing the manner in which the glazing channels 50, 50 shown in Figure 3 are used.

In this specification, the cross section of the lower edge of each of the top, bottom, left and right edges of the window glass with glazing channels 100 (see FIG. 2) and 150 (see FIG. 4) will be shown and described. Also, FIG. 4 illustrates the "outdoor" and "indoor". Below, the embodiment shown in FIG. 3 and FIG. 4 will be described before the embodiment shown in FIG. 1 and FIG. 2.

Figure 4 shows a window glass 150 with a glazing channel, in which the above-mentioned separate glazing channels 50, 50 are attached to a window glass consisting of two layers of insulating glass 20. Note that the glazing channel 50 shown in Figures 3 and 4 is not limited to the insulating glass 20, but can also be suitably attached to a single glass sheet or other types of window glass, such as wire-reinforced glass having fire resistance. Also, the insulating glass 20 is not limited to two layers, but may be three or more layers.

As shown in FIG. 4, the window glass 150 with a glazing channel has a double-glazing glass 20 and glazing channels 50, 50. The glazing channels 50, 50 are attached to the side edges 22a, 24a that correspond to the peripheral edges of the first glass sheet 22 and the second glass sheet 24 that constitute the double-glazing glass 20. The window glass 150 with a glazing channel is then attached, for example, to a groove 82 formed in a window frame 80 via a setting block (not shown).

The insulating glass 20 comprises a first glass sheet 22, a second glass sheet 24, and a spacer 26 that separates the first glass sheet 22 and the second glass sheet 24. A hollow layer 28 is defined inside the insulating glass 20 by the first glass sheet 22, the second glass sheet 24, and the spacer 26. The spacer 26 is disposed along the side edges of the inner main surfaces of the first glass sheet 22 and the second glass sheet 24, so that the distance between the first glass sheet 22 and the second glass sheet 24 is kept constant by the spacer 26.

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 non-alkali glass.

The first glass plate 22 and the second glass plate 24 may be glass plates that have been subjected to a strengthening process such as a physical strengthening process or a chemical strengthening process. The first glass plate 22 and the second glass plate 24 may be a known laminated glass in which multiple glass plates are bonded together via an interlayer film.

Furthermore, the first glass plate 22 and the second glass plate 24 may be glass plates having a functional film formed on each of their main surfaces to improve their functionality. Examples of functional films include a low-emissivity film (Low-E film), an anti-fogging film, an anti-soiling film, or a water-repellent film. Furthermore, it is preferable that the first glass plate 22 and the second glass plate 24 each have a thickness suitable for window glass, for example, between 1 mm and 24 mm.

In the double-glazing glass 20 of this example, the inner main surface of the first glass sheet 22 and the surface of the spacer 26 facing this inner main surface are bonded by a primary seal 30. The inner main surface of the second glass sheet 24 and the surface of the spacer 26 facing this inner main surface are also bonded by a primary seal 30. Furthermore, a concave groove is defined by the lower surface of the spacer 26 (opposite the hollow layer 28) and the inner main surfaces of the first glass sheet 22 and the second glass sheet 24, and a 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 isolated from the outside air by the primary seals 30, 30 and the secondary seal 32.

The spacer 26 is hollow and has a cavity. On the upper surface (the hollow layer 28 side) of the spacer 26, a plurality of air holes 34 are provided at predetermined intervals along the longitudinal direction of the spacer 26 (the direction perpendicular to the paper surface). The air holes 34 are formed by penetrating into the hollow portion of the spacer 26. This allows the hollow portion of the spacer 26 to communicate with the hollow layer 28. In addition, the hollow portion of the spacer 26 is filled with a desiccant 36 such as granular zeolite, so that the gas in the hollow layer 28 is dried by the desiccant 36 through the air holes 34.

The spacer 26 may be a metal spacer whose main material is aluminum, or it may be a resin spacer. In the case of a resin spacer, the surface may be covered with an aluminum sheet. When a resin spacer is used, it may not be necessary to use the primary seals 30, 30 and secondary seal 32.

The primary seal 30 is preferably made of butyl rubber, which is not normally cross-linked, or polyisobutylene, containing 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 and second glass panes 22 and 24 in the so-called double glazing 20 is ensured by the secondary seal 32.

Suitable secondary seals 32 are based on curable elastomers such as polysulfide (manufactured by Yokohama Rubber Co., Ltd.: registered trademark: Hamatite SM9000), silicone (manufactured by Dow Corning Toray Co., Ltd.: product name: SE936), and urethane (manufactured by Sanyu Rec Co., Ltd.: registered trademark: SANYU IGS205), and are appropriately modified to exhibit adhesive properties between the first glass plate 22 and the second glass plate 24.

Next, the glazing channels 50, 50 shown in FIG. 3 will be described with reference to FIG. 4. Note that the two glazing channels 50, 50 have the same configuration, so they will be described with the same reference numerals, but the parts that are elements of the present invention will be described with different reference numerals.

As shown in FIG. 3, the glazing channel 50 includes a main body 52 and a seal portion 54. The main body 52 has a bottom portion 52A (52Aa, 52Ab), a corner portion 52B in contact with the bottom portion 52A, and a side wall portion 52C erected from the corner portion 52B, and has an L-shaped vertical cross section. The bottom portion 52A and the side wall portion 52C are in a substantially orthogonal positional relationship. The corner portion 52B is located between the bottom portion 52A and the side wall portion 52C, and has a function of protecting the edge portion of the double-glazed glass 20. Here, in the bottom portion 52A, the bottom portion 52A on the left side of the connecting portion 12 (see FIG. 1) is referred to as the first bottom portion 52Aa, and the bottom portion 52A on the right side is referred to as the second bottom portion 52Ab. The connecting portion 12 is an example of a connecting portion of the present invention, and the first bottom surface portion 52Aa and the second bottom surface portion 52Ab are an example of a divided bottom surface portion of the present invention.

The main body 52 (bottom surface 52A, corner 52B, and side wall 52C) is 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 hard material is preferably 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. 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 making the main body 52 out of a hard material (also called a semi-hard material) having such hardness, the main body 52 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 description, when "hardness" is mentioned, it means "durometer hardness (based on JIS K6253-3 (2012)) (Type A)."

As shown in FIG. 4, the seal portion 54 extends obliquely upward from the upper portion of the side wall portion 52C toward the main surface 20A of the double-glazing (window glass) 20. When the glazing channel 50 is attached to the double-glazing 20, the seal portion 54 is pressed against the main surface 20A of the double-glazing 20, thereby adhering to the main surface 20A of the double-glazing 20. At this time, the seal portion 54 and the upper portion of the side wall portion 52C (the portion above the adhesive 60 described later) elastically deform outward from the main surface 20A of the double-glazing 20. As a result, when the window glass 150 with the glazing channel is attached to the window frame 80, the seal portion 54 and the upper portion of the side wall portion 52C are adhered to the opening end 80A of the window frame 80 and the vicinity thereof. This allows the window glass 150 with the glazing channel to be stably held against the window frame 80.

The seal portion 54 also has a protrusion 55 (see FIG. 3) that extends obliquely downward from the upper portion of the side wall portion 52C toward the side opposite the main surface 20A of the insulating glass (window glass) 20. When the window glass 150 with a glazing channel is attached to the window frame 80 of FIG. 4, the protrusion 55 of the seal portion 54 is pressed against the opening end 80A formed at the upper portion of the window frame 80. As a result, the seal portion 54 is elastically deformed toward the main surface 20A of the insulating glass 20 as shown by the two-dot chain line in FIG. 4. By providing the seal portion 54 with such a protrusion 55, the adhesion and watertightness of the glazing channel 50 to the insulating glass 20 are improved in cooperation with the window frame 80.

The seal portion 54 is made of a soft material with a hardness of 50 degrees or more and less than 80 degrees. Naturally, this soft material is preferably a soft resin that is softer than the main body portion 52. In this case, a flame-retardant soft resin is also preferable. The hardness is preferably 60 degrees or more and 75 degrees or less, more preferably 68 degrees or more and 74 degrees or less, and even more preferably 70 degrees or more and 72 degrees or less.

The main body 52 and the seal 54 are preferably integrally formed by extrusion molding. In this case, the main body 52 and the seal 54 are made of a resin material that can be extruded. Examples of the resin material include thermoplastic resin materials, thermosetting resin materials, moisture-curing resin materials, and the like. Among these, a thermoplastic resin material that immediately solidifies when allowed to cool after extrusion is preferred, and a flame-retardant polyvinyl chloride resin material that satisfies the hardness described above is particularly preferred.

In addition, the glazing channel 50 has a support portion 56 attached to the surface of the seal portion 54 (the underside of the seal portion 54 in FIG. 3). The support portion 56 extends obliquely upward from the upper end of the side wall portion 52C extending vertically upward toward the main surface 20A of the double-glazing glass 20. This support portion 56 is made of a hard member having 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 integrally formed with the side wall portion 54C, the support portion 56 can be easily arranged in the seal portion 54. Furthermore, since the support portion 56 is arranged on the underside 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 150 with a glazing channel having good appearance design can be formed. In addition, because the support portion 56 does not protrude beyond the seal portion 54, even if the main surface 20A of the insulating glass 20 is subjected to pressure such as wind pressure or is subjected to force such as when an object such as packaging material hits the main surface 20A, the support portion 56, which is a hard member, does not come into contact with the main surface 20A, so the insulating glass 20 can be protected.

Furthermore, the glazing channel 50 has a tongue-shaped portion 58 in addition to the above-mentioned seal portion 54. The tongue-shaped portion 58 extends obliquely downward from the inside of the side wall portion 52C toward the main surface 20A of the double-glazing glass 20. When the glazing channel 50 is attached to the double-glazing glass 20, the tongue-shaped portion 58 is pressed against the main surface 20A of the double-glazing glass 20 as shown in FIG. 4, and is thereby adhered closely to the main surface 20A of the double-glazing glass 20. Like the seal portion 54, the tongue-shaped portion 58 is preferably made of a soft member (e.g., a soft polyvinyl chloride resin material) having a hardness of 50 degrees or more and less than 80 degrees, and is integrally molded by extrusion molding. Note that the tongue-shaped portion 58 is not essential to the glazing channel 50.

As shown in FIG. 4, the glazing channel 50 constructed as described above has the side wall portion 52C bonded to the main surface 20A of the insulating glass 20 with adhesive 60. This forms a window glass 150 with a glazing channel.

As an example of the adhesive 60, a 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. Note that the adhesive 60 is not limited to the above-mentioned double-sided adhesive tape, and other adhesives such as epoxy adhesives or hot melt adhesives may be used. However, if a double-sided adhesive tape is used, the curing time (curing time) of the adhesive can be omitted, so that the window glass 150 with the glazing channel can be assembled in a short time.

The glazing channel 50, 50 in FIG. 3 has bottom end portions 62Aa, 62Ab at the other end opposite to the end portion on one side that contacts the corner portion 52B, 52B of each of the first bottom portion 52Aa and the second bottom portion 52Ab. The bottom end portions 62Aa, 62Ab are provided at the other end portions of the connecting portion 12 shown in FIG. 1 by dividing the connecting portion 12 at the recessed portion 14. The connecting portion 12 (see FIG. 1) consisting of the bottom end portions 62Aa, 62Ab and the recessed portion 14 is made of a soft member having a hardness of 50 degrees or more and less than 80 degrees. The hardness is preferably 65 degrees or more and 75 degrees or less, more preferably 68 degrees or more and 74 degrees or less, and even more preferably 70 degrees or more and 72 degrees or less.

As shown in FIG. 4, the window frame 80 has a groove 82 for accommodating the window glass 150 with a glazing channel, and a pair of claws 84 that engage with the glazing channel 50, and has a U-shaped cross-sectional shape. The pair of claws 84 are formed opposite each other at opposing opening ends 80A of the window frame 80, and function as members for determining the opening width of the window frame 80.

Next, we will explain the function of the window glass 150 with glazing channels.

As shown in FIG. 4, the window glass 150 with glazing channels has glazing channels 50, 50 attached separately to the side edges 22a, 24a of the first glass sheet 22 and the second glass sheet 24, and the double-glazed glass 20 is held in the glazing channel 50 by the seals 54, 54. In this state, for example, when one of the main surfaces (e.g., the main surface on the outside of the room) 20A of the double-glazed glass 20 receives pressure such as wind pressure, the double-glazed glass 20 moves (displaces) in the direction of the pressure (inside the room), pressing the right seal 54 located in the direction of the pressure. At this time, the seal 54 is made of a soft material and is therefore deformed. On the other hand, the left seal 54 located on the opposite side of the pressure direction and the double-glazed glass 20 try to move away from each other, which causes a problem that the holding force of the left seal 54 on the double-glazed glass 20 is weakened.

To solve the above problem, a configuration is adopted in which the hard side wall portion 50C of the glazing channel 50 is adhered to both main surfaces 20A of the insulating glass 20 with adhesive (double-sided adhesive tape) 60. As a result, when the insulating glass 20 is subjected to pressure, the left-side seal portion 54, which is located on the opposite side to the direction of pressure, and the insulating glass 20 do not move away from each other, and the holding force of the left-side seal portion 54 on the insulating glass 20 is maintained constant. As a result, the window glass 150 with glazing channel in Figure 4 can stably hold the insulating glass (window glass) 20.

Here, the differences between the form shown in Figures 1 and 2 (the former form) and the form shown in Figures 3 and 4 (the latter form) will be explained. The latter form employs separate glazing channels 50, 50 as the glazing channel, whereas the former form employs an integrated glazing channel 10. In other words, the latter form is configured by dividing the connecting portion 12 at the recessed portion 14 in the former form. The former form will be explained below. Note that the same configuration as the latter form will also be explained repeatedly.

As shown in FIG. 1, the main body 52 of the glazing channel 10 has a bottom surface 52A, a pair of corner portions 52B, 52B that contact both ends of the bottom surface 52A, and a pair of side wall portions 52C, 52C that stand upright from the pair of corner portions 52B, 52B, respectively, and has a U-shaped vertical cross section.

The bottom surface portion 52A has a first bottom surface portion 52Aa and a second bottom surface portion 52Ab, and the first bottom surface portion 52Aa and the second bottom surface portion 52Ab are connected via a connecting portion 12. The connecting portion 12 is made of a soft member (e.g., a soft polyvinyl chloride resin material) having a hardness of 50 degrees or more and less than 80 degrees, and is molded integrally with the main body portion 52 and the sealing portion 54 by extrusion molding.

As shown in FIG. 2, the glazing channel 10 shown in FIG. 1 has rigid sidewalls 52C, 52C bonded to both main surfaces 102A, 102A of the glass plate 102 with adhesive 60, 60. As a result, when the glass plate 102 is subjected to pressure, the seal portion 54 and the glass plate 102 located on the opposite side of the pressure direction do not move away from each other, so that the holding force of the glass plate 102 by the seal portion 54 is maintained constant. As a result, the window glass 100 with glazing channel shown in FIG. 2 can stably hold the glass plate (window glass) 102. In addition, if there is an error in the thickness of the glass plate 102, the seal portion 54 and the upper portion of the sidewall portion 52C (the portion above the adhesive 60) can elastically deform outward from both main surfaces 102A, 102A of the glass plate 102 to absorb the error.

1 and 2, the connecting portion 12 has the recessed portion 14 described above in order to divide the glazing channel 10 into the separate glazing channels 50, 50 shown in FIG. 3. When the recessed portion 14 is formed on both the lower surface (opposite the glass plate 102) and the upper surface (on the glass plate 102 side) of the main body portion 52, the U-shaped glazing channel 10 in FIG. 1 can be easily changed to the W-shaped form shown in FIG. 5 by bending the side wall portions 52C and 52C on both sides in a direction away from each other with the recessed portion 14 shown in FIG. 1 as a bending fulcrum. Also, the form of the glazing channel 10 can be easily changed from the form shown in FIG. 5 to the form shown in FIG. 1. It is preferable that the adhesive (double-sided adhesive tape) 60 is attached to the side wall portion 52C in the form shown in FIG. 5. A primer may be used at this time.

The recess 14 that serves as the bending fulcrum may be formed only on the lower surface or only on the upper surface of the main body 52, but from the viewpoint of easily changing the shape of the glazing channel 10 between the shape shown in FIG. 1 and the shape shown in FIG. 5, it is preferable that it be formed on both the lower surface and the upper surface of the main body 52.

As described above, the connecting portion 12 can be broken at the recessed portion 14, which is thinner. In other words, when the connecting portion 12 is broken at the recessed portion 14, the bottom portion 52A is divided into the first bottom portion 52Aa and the second bottom portion 52Ab, and the bottom end portions 62Aa and 62Ab shown in Figures 3 and 4 are provided at the opposing ends of the first bottom portion 52Aa and the second bottom portion 52Ab. As explained again, the separate type glazing channels 50, 50 shown in Figures 3 and 4 are formed by dividing the glazing channel 10 shown in Figures 1 and 2 at the recessed portion 14. In other words, by providing the soft connecting portion 12 to the main body portion 52, the form of the integrated glazing channel 10 is changed to the separate type glazing channels 50, 50.

On the other hand, the shape of the glazing channel 10 shown in FIG. 5 is a preferred shape when the glazing channel 10 is wound around the reel 200 shown by the two-dot chain line in FIG. 6. The glazing channel 10 wound around the reel 200 may have a length that matches the length of the peripheral portion of the double glazing (window glass) 20 or the glass sheet (window glass) 102, or may be in a long state before being cut to match that length.

When the glazing channel 10 in the form shown in FIG. 5 is wound onto the reel 200 in FIG. 6, as shown in FIG. 7, the glazing channels 10 are wound onto the reel 200 while overlapping each other. At this time, the glazing channel 10 receives a pressing force in the direction of arrow A from the other glazing channels 10 that overlap it toward the reel 200, but at this time, the above pressing force can be absorbed by contact between the connecting portion 12 and the corner portion 52B that overlaps with its outer side (the side in the direction of arrow B). As a result, the main body portion 52 of the hard material can be prevented from being plastically deformed or damaged. In addition, when the glazing channel 10 is unwound from the reel 200, the glazing channel 10 immediately returns to the original form shown in FIG. 5 due to the elastic restoring force of the connecting portion 12 and the seal portion 54, so that the winding tendency can be suppressed.

Therefore, according to the first embodiment of the glazing channel 10, the bottom surface portion 52A has the first bottom surface portion 52Aa and the second bottom surface portion 52Ab and the connecting portion 12, and the first bottom surface portion 52Aa, the second bottom surface portion 52Ab and the pair of side wall portions 52C, 52C 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), and the pair of seal portions 54, 54 and the connecting portion 12 are made of a soft material having a hardness of 50 degrees or more and less than 80 degrees, so that a glazing channel 10 that can be wound up and has little curling when unwound, and a glazing channel winding body 210 shown in FIG. 6 can be provided. In addition, even if the glazing channel 10 is repeatedly opened and closed with the connecting portion 12 as a bending fulcrum, the connecting portion 12 is not unintentionally broken, so that a high-quality glazing channel 10 can be provided. In addition, the tongue-shaped portion 58 is not an essential component of the glazing channel 10, but if the tongue-shaped portion 58 is included, it is preferable that the tongue-shaped portion 58 be made of a soft material with a hardness of 50 degrees or more and less than 80 degrees. With this hardness, it is possible to reduce the tendency of the tongue-shaped portion 58 to curl when the glazing channel 10 is unwound from the reel 200 in FIG. 7.

Here, the difference in hardness between the hard member and the soft member is preferably 21 to 31 degrees, and the ratio of the hardness difference is preferably 67 to 79%.

In addition, as shown in FIG. 7, a preferred form for winding the glazing channel 10 on the reel 200 is that the sealing portion 54 is wound in a roll with the sealing portion 54 facing the outside of the reel 200 as indicated by the arrow B. As a result, the above-mentioned pressing force can be effectively absorbed by contact between the connecting portion 12 and the corner portion 52B that overlaps with the outside (the side in the direction of the arrow B), and the glazing channel 10 is wound regularly, so that the length that the glazing channel 10 can be wound can be increased. There is no problem if the sealing portion 54 is wound in a roll with the sealing portion 54 facing inward.

As a preferred form of the glazing channel 10, it is preferable that the length of each of the first bottom surface portion 52Aa and the second bottom surface portion 52Ab is longer than the length of each of the seal portion 54 and the tongue-shaped portion 58. As shown in FIG. 7, when the glazing channel 10 is wound around the reel 200 in a W-shaped form, contact between the seal portions 54 and the tongue-shaped portions 58 in the overlapping glazing channels 10 is unlikely to occur, so that the seal portions 54 and the tongue-shaped portions 58 can be protected.

Second Embodiment
Fig. 8 is a longitudinal sectional view of a main part of a glazing channel 160 according to a second embodiment. Fig. 9 is a longitudinal sectional view of a main part of a window glass 170 with a glazing channel according to a third embodiment, showing a mode of use of the glazing channel 160 shown in Fig. 8.

Figure 10 is a vertical cross-sectional view of the glazing channel 160 shown in Figure 8, in which the recessed portion 14 of the right-side connecting portion 12 of the two left and right connecting portions 12, 12 is divided at the boundary to form separate glazing channels 162, 162. Figure 11 is a vertical cross-sectional view of the main parts of a window glass 180 with a glazing channel of the fourth embodiment, showing the usage form of the glazing channels 162, 162 shown in Figure 10. Note that the same reference numerals are used for the components common to the first embodiment shown in Figures 1 to 4.

The difference between the glazing channel 10 of the first embodiment shown in Figures 1 to 4 and the glazing channel 160 of the second embodiment shown in Figures 8 to 11 is that the first embodiment has one connecting part 12, whereas the second embodiment has two connecting parts 12, 12 (corresponding to the first connecting part and the second connecting part of the present invention). Also, in the second embodiment, separate glazing channels 162, 162 are attached to a window glass 190 (see Figure 11) that is wider than the double-glazing glass 20 (see Figure 4) of the first embodiment.

8, the main body 52 of the glazing channel 160 has a bottom surface 52A, a pair of corner portions 52B, 52B that contact both ends of the bottom surface 52A, and a pair of side wall portions 52C, 52C that stand up from the pair of corner portions 52B, 52B, respectively, 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, and the first bottom surface 52Aa and the third bottom surface 52Ac are connected via a connecting portion 12 that corresponds to the first connecting portion, and the second bottom surface 52Ab and the third bottom surface 52Ac are connected via a connecting portion 12 that corresponds to the second connecting portion.

In the embodiment shown in FIG. 9, like the embodiment shown in FIG. 2, the glazing channel 160 has hard side wall portions 52C, 52C bonded to both main surfaces 20A of the insulating glass 20 with adhesives 60, 60. As a result, when the insulating glass 20 is subjected to pressure, the sealing portion 54 located on the opposite side to the direction of pressure and the insulating glass 20 do not move away from each other, so the holding force of the sealing portion 54 on the insulating glass 20 is maintained constant. As a result, the window glass with glazing channel 170 of the embodiment shown in FIG. 9 can also stably hold the insulating glass 20.

On the other hand, the window glass 190 shown in FIG. 11 is configured as a double-glazed glass in which a laminated glass 192 and a single glass plate 194 are separated by a spacer 26. The laminated glass 192 is formed by joining a glass plate 196 and a glass plate 198 with an intermediate film 199 in between. Note that thick fireproof glass may be used instead of the laminated glass 192.

The glazing channels 162, 162 shown in FIG. 11 are formed by dividing the connecting portion 12 that connects the second bottom surface portion 52Ab and the third bottom surface portion 52Ac in the glazing channel 160 shown in FIG. 8 at the recessed portion 14. The left glazing channel 162 is bonded to the left main surface 190A of the window glass 190 (laminated glass 192) via adhesive 60, and the right glazing channel 162 is bonded to the right main surface 190A of the window glass 190 (glass plate 194) via adhesive 60. By dividing the connecting portion 12, a bottom surface end portion 62Ac is provided at the end of the third bottom surface portion 52Ac.

The configuration shown in FIG. 11 can stably hold the window glass 190, similar to the configuration shown in FIG. 4.

In the glazing channel 160 of the second embodiment, the vertical cross-sectional shape of the main body 52 can be changed from a U-shape to an approximately W-shape by bending the two connecting parts 12, 12 and separating the pair of side walls 52C, 52C in a direction away from each other (see FIG. 5). Then, in this state, it is wound up into a roll (see FIG. 6). Then, the glazing channel 160 has less curling when unwound due to the pressing force absorption action of the connecting part 12 and the connecting part 52B overlapping the outside of it, and the elastic restoring force of the connecting part 12 and the seal part 54. Note that the winding body of the glazing channel 160 has approximately the same configuration as the glazing channel winding body 210 shown in FIG. 6, so it is not shown here.

In the first and second embodiments, a bottom surface portion 52A having one or two connecting portions 12 is exemplified, but the bottom surface portion 52A may have three or more connecting portions 12. Similarly, in the first and second embodiments, a bottom surface portion 52A having two or three divided bottom surface portions (first bottom surface portion 52Aa, second bottom surface portion 52Ab, third bottom surface portion 52Ac) is exemplified, but the bottom surface portion may have four or more divided bottom surface portions.

The above describes a glazing channel according to one embodiment of the present invention, but the present invention is not limited to the above embodiment. Various modifications and improvements, such as combinations and substitutions with part or all of other embodiments, are possible within the scope of the present invention.

10...glazing channel, 12...connecting portion, 14...recessed portion, 20...insulating glass, 22...first glass pane, 24...second glass pane, 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 portion, 52Aa...first bottom surface portion, 52Ab...second bottom surface portion, 52Ac...third bottom surface portion, 52B...corner portion, 52C...side wall portion, 52D...inner surface, 54...sealing portion, 55...projection portion, 56...support portion, 58...tongue-shaped portion, 60...adhesive, 62Aa...bottom surface end part, 62Ab...bottom end, 62Ac...bottom end, 80...window frame, 82...groove, 84...claw, 100...window glass with glazing channel, 150...window glass with glazing channel, 160...glazing channel, 162...glazing channel, 170...window glass with glazing channel, 180...window glass with glazing channel, 190...window glass, 192...laminated glass, 194...glass plate, 196...glass plate, 198...glass plate, 199...interlayer film, 200...reel, 210...glazing channel winding body

Claims (10)

a main body having a U-shaped cross section, the main body having a bottom surface, a pair of corner portions contacting both edges of the bottom surface, and a pair of side walls extending from the pair of corner portions, the main body being attached to an edge of a window glass;
a pair of seal portions extending obliquely upward from upper portions of the pair of side wall portions toward the main surface of the window glass,
The bottom surface portion has a plurality of divided bottom surface portions and at least one connecting portion that configures the bottom surface portion by connecting the plurality of divided bottom surface portions,
The divided bottom portion and the pair of side wall portions are made of a hard 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),
The pair of seal portions and the connecting portion are made of a soft material having a hardness measured by the method of 50 degrees or more and less than 80 degrees.
Glazing channel. The connecting portion has a recessed portion having a reduced thickness on at least one of the upper surface side and the lower surface side.
The glazing channel according to claim 1. The connecting portion can be separated at the recessed portion.
A glazing channel according to claim 2. The bottom surface portion has, as the divided bottom surface portion, a first divided bottom surface portion and a second divided bottom surface portion, and has, as the connecting portion, a first connecting portion that connects the first divided bottom surface portion and the second divided bottom surface portion.
A glazing channel according to any one of claims 1 to 3. The bottom surface portion has, as the divided bottom surface portion, a first divided bottom surface portion, a second divided bottom surface portion, and a third divided bottom surface portion, and, as the connecting portion, has a first connecting portion that connects the first divided bottom surface portion and the third divided bottom surface portion, and a second connecting portion that connects the second divided bottom surface portion and the third divided bottom surface portion.
A glazing channel according to any one of claims 1 to 3. The glazing channel according to any one of claims 1 to 5, wherein the length of each of the plurality of divided bottom surface portions is longer than the length of each of the pair of sealing portions. A glazing channel according to any one of claims 1 to 6, comprising a pair of tongue-shaped portions each extending obliquely downward from the inside of the pair of side wall portions toward the main surface of the window glass, and the length of each of the plurality of divided bottom surface portions is longer than the length of each of the pair of tongue-shaped portions. A roll of the glazing channel according to any one of claims 1 to 7,
A glazing channel roll wound into a roll with at least one of the connecting portions being a bent portion and the pair of side wall portions being separated from each other in directions away from each other, thereby changing the longitudinal cross-sectional shape of the main body portion from a U-shape to a W-shape. The glazing channel roll according to claim 8, wound into a roll with the seal portion facing outward. A window glass with a glazing channel comprising the glazing channel according to any one of claims 1 to 7 and the window glass bonded to the pair of side walls of the glazing channel by an adhesive.

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