JP2015229828A - Glass window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass window capable of preventing intrusion of a flame for a long period of time.SOLUTION: A glass window 1 includes three-layer glass 10, and a window frame 11 into which the three-layer glass 10 is fitted. A central glass plate 21 of three glass plates 20, 21 and 22 constituting the three-layer glass 10 has an extension part 60 that extends upward. The window frame 11 has a concave groove part 70 into which the extension part 60 of the central glass plate 21 is fitted and which holds the extension part 60. The groove part 70 is made of a noncombustible material.

Description

  The present invention relates to a glass window.

  Conventionally, in a building constructed in a cold region, a glass window provided with a three-layer glass has been adopted in order to achieve high heat insulation. Three-layer glass is a glass in which this type of glass window is a glass in which a spacer is provided between two adjacent glass plates to form a two-layer sealed space, and by sandwiching the three-layer glass in a window frame, High heat insulation is realized (see Patent Document 1). In this three-layer glass, a higher heat insulating property can be obtained by using a spacer having a high heat insulating material such as a synthetic resin.

  As described above, when a spacer made of a synthetic resin material is used, the following problems may occur. That is, (1) a flame side (external side) glass plate is broken by heat during a fire, and a missing portion is formed in the glass plate. (2) The flame side spacer (especially the spacer in the window upper frame part) is directly beaten and melted by the flame entering from the missing part of the glass plate without passing through the glass plate. (3) Of the glass plate on the flame side, the remaining portion remaining in the upper frame portion of the window without being dropped by being sandwiched between the window frame and the spacer is dropped due to dissolution of the spacer. (4) Due to melting of the flame side spacer and dropping of the flame side glass plate, the remaining two glass plates are not held between the window frame, and a gap is generated between the window frame and the glass plate. (5) The inside of the building is damaged by a flame entering from the gap through the gap between the glass plates.

Utility Model Registration No. 3123750

  This application is made in view of this point, and it aims at providing the glass window which can suppress the penetration | invasion of a flame for a long time in the glass window provided with the multilayer glass containing three layers.

  As one of the inventions for achieving the above object, at least one of a plurality of glass plates comprising a multi-layer glass and a window frame in which the multi-layer glass is fitted, and constituting the multi-layer glass. One glass plate has an extending portion extending upward, and the window frame is provided with a glass window having a concave groove portion into which the extending portion of the glass plate is fitted.

  According to the glass window, even if the glass plate is broken and dropped by the flame, the remaining glass plate can suppress the intrusion of the flame for a long time.

  The groove portion may hold an extending portion of the glass plate. Even if the glass plate having the stretched portion is broken by the heat of the flame, the groove portion can continue to grip the remaining glass plate near the stretched portion and can be prevented from falling off. Thereby, for example, a gap can be formed near the end of the glass plate, and the intrusion of flame can be suppressed.

  The multilayer glass may be a three-layer glass, and the glass plate having the extending portion may be a central glass plate among the three glass plates.

  The groove may be made of a non-combustible material.

  A glass window that can suppress the intrusion of flame for a long time can be realized.

It is explanatory drawing of the longitudinal cross-sectional view of a glass window. It is a front view of a glass window. It is explanatory drawing which shows the state which the glass plate of the outer side of the glass window fell. It is explanatory drawing of the glass window at the time of providing an extending | stretching part in an inner side glass plate. It is explanatory drawing of the glass window at the time of providing the extending | stretching part in all the glass plates.

  Hereinafter, an example of a preferred embodiment of the present invention will be described with reference to the drawings. Note that the positional relationship such as up, down, left, and right in the drawing is based on the positional relationship shown in the drawing unless otherwise specified. The dimensional ratios in the drawings are not limited to the illustrated ratios. Furthermore, the following embodiment is an illustration for explaining the present invention, and is not intended to limit the present invention only to the embodiment. The present invention can be variously modified without departing from the gist thereof.

  FIG. 1 is an explanatory view of a longitudinal section showing an outline of the configuration of the glass window 1 according to the present embodiment, and FIG. 2 is a front view of the glass window 1.

  The glass window 1 includes, for example, a three-layer glass 10 as a multilayer glass and a window frame 11 in which the three-layer glass 10 is fitted.

  The three-layer glass 10 includes three rectangular glass plates 20, 21, and 22 arranged in order from the inside to the outside of the building.

  The window frame 11 is formed in, for example, a rectangular frame shape, and the three-layer glass 10 is fitted therein. For example, the window frame 11 has the concave line part 30 in which the said outer peripheral part is accommodated along the four outer peripheral parts of the three-layer glass 10. FIG. The recessed line part 30 is comprised, for example with the nonflammable material.

  A bead (packing) 40 is disposed inside the recessed strip portion 30, and three glass plates 20 to 22 are disposed via the bead 40. Between the outer peripheral portions of the glass plates 20 to 22, for example, frame-like spacers (materials that maintain a space between adjacent glass plates and form a space) 50 and 51 and a sealing material (the sealed state of the space between the glass plates) (Material for maintaining) 52, 53 are arranged. The spacers 50 and 51 are made of, for example, a relatively hard synthetic resin having high heat insulation properties, and a sealing material (not shown) is interposed between the glass plates 20 to 22. The sealing materials 52 and 53 are made of, for example, elastic rubber or synthetic resin. The glass plate 20 is sandwiched between the spacer 50 and the inner side wall of the concave strip portion 30 via the beat 40 without forming a gap between the concave strip portion 30, and the glass plate 22 is sandwiched via the beat 40. The spacer 51 and the outer side wall of the concave line portion 30 are sandwiched between the concave line portion 30 without forming a gap. The materials of the spacers 50 and 51 and the sealing materials 52 and 53 are not limited to the above synthetic resin and rubber.

  For example, the central glass plate 21 includes an extending portion 60 that extends (projects) upward from the glass plates 20 and 22 on the other sides. In addition, a concave groove portion 70 into which the extending portion 60 of the glass plate 21 is fitted is formed at the center of the concave portion 30. In addition, the groove part 70 is comprised, for example with the nonflammable material. As shown in FIG. 2, the groove portion 70 is formed in a straight line shape in the horizontal direction along the upper side of the glass plate 21. The extending portion 60 of the glass plate 21 is fitted into the groove portion 70 of the concave strip portion 30 and is gripped from both sides by the groove portion 70.

  According to the glass window 1 configured as described above, for example, when the glass window 1 is beaten from the outside of a building during a fire in a neighboring house, if a part of the outside glass plate 22 is broken by the heat of the flame, FIG. As shown in FIG. 3, the spacer 51 is melted together with the sealing material 53 and falls off due to the flame entering from the missing portion of the glass plate 22. Due to this dropping, the remaining portion of the upper portion of the glass plate 22 is also dropped by releasing the pressing by the spacer 51. At this time, since the extending portion 60 of the central glass plate 21 is fitted in the groove portion 70 of the window frame 11, the extending portion 60 can prevent a flame from entering. Further, even if the glass plate 21 is broken following the glass plate 22 due to the flame, the extending portion 60 of the glass plate 21 is held by the groove portion 70, so that the portion in the vicinity of the extending portion 60 of the glass plate 21 does not fall off and the groove portion The spacer 50 remains in a state where it hangs down from 70, and the spacer 50 continues to press the glass plate 20 in the direction of the side wall inside the recess 30. Thereby, a clearance gap is not formed between the glass plate 20 and the recessed stripe part 30, but the penetration | invasion of a flame can be prevented. Therefore, the penetration of the flame can be suppressed for a long time compared to the conventional case.

  Moreover, in the glass window 1 described in this Embodiment, since the groove part 70 was provided in the glass plate 21 of the center of the three-layer glass 10, the inner glass plate 20 was beaten by the flame by the fire inside a building. Even if it is a case, the fire spread by the leakage of a flame can be suppressed by the same effect | action.

  Moreover, since the groove part 70 is comprised with the nonflammable material, the holding | maintenance duration of the groove part 70 when approaching a flame becomes long, and the penetration | invasion of a flame can be suppressed for a long time.

  In the above embodiment, only the central glass plate 21 of the three-layer glass 10 has the extending portion 60 and the window frame 11 has the corresponding groove portion 70, but the other glass plates also have the extending portion. A groove corresponding to the window frame 11 may be formed. For example, as shown in FIG. 4, the extending portion 60 may be formed on the glass plate 20 inside the building, and the groove portion 70 that holds the extending portion 60 may be formed in the window frame 11. In this case, since the flame from the outside of the building is blocked by the glass plate 21 and the glass plate 20, the penetration of the flame into the inside of the building can be suppressed for a long time.

  Furthermore, as shown in FIG. 5, the extending portion 60 may be formed also on the glass plate 22 outside the building, and the groove portion 70 that holds the extending portion 60 may be formed in the window frame 11. That is, the extending portions 60 may be formed in all the glass plates 20 to 22, and the corresponding groove portions 70 may be formed in the window frame 11. In such a case, the flame can be prevented from entering for a longer time.

  In addition, in FIG. 4 shown by the said embodiment, it replaces with the inner side glass plate 20, and the extending | stretching part 60 may be formed in the outer side glass plate 22, and the groove part 70 corresponding to it may be formed in the window frame 11. FIG. Further, instead of the central glass plate 21, the extending portion 60 may be formed only in at least one of the glass plates 20 and 21 other than the glass plate 21, and the corresponding groove portion 70 may be formed in the window frame 11.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, in the above embodiment, the case of the three-layer glass 10 has been described as an example, but the present invention can also be applied to a double-layer glass having two layers or four or more layers. Moreover, in the case of a double-layer glass having three or more layers, a stretched portion may be provided on a glass plate other than the outermost glass plate. Moreover, the shape and length of the extending | stretching part 60 of a glass plate are not restricted to this. Moreover, the groove part 70 may hold | grip the extending | stretching part 60 directly, and may hold | grip indirectly. Moreover, the groove | channel 70 does not need to hold | grip the extending | stretching part 60, and the extending | stretching part 60 may just be engage | inserted.

  The present invention is useful in realizing a glass window that can suppress the intrusion of a flame for a long time.

DESCRIPTION OF SYMBOLS 1 Glass window 10 Three-layer glass 11 Window frame 20-22 Glass plate 30 Concave part 50, 51 Spacer 52, 53 Sealing material 60 Extension part 70 Groove part

Claims (4)

With double glazing,
A window frame in which the multilayer glass is fitted,
At least one glass plate out of a plurality of glass plates constituting the multilayer glass has an extending portion extending upward,
The said window frame is a glass window which has a concave groove part by which the extending | stretching part of the said glass plate was engage | inserted.   The glass window according to claim 1, wherein the groove portion holds an extending portion of the glass plate. The multi-layer glass is a three-layer glass,
The glass window according to claim 1 or 2, wherein the glass plate having the extending portion is a central glass plate among the three glass plates.   The said groove part is a glass window in any one of Claims 1-3 which consist of nonflammable materials.

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