JP2006241805A - Double-glazed door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double-glazed door wherein double glazing and a frame material are firmly fixed together. <P>SOLUTION: This double-glazed door is constituted by fitting a peripheral edge of the double glazing 10 into the frame material 12. The double glazing 10 is constituted by superposing two glass plates 14 and 14 on each other in a state wherein a spacer 16 is interposed in an inside region close to the peripheral edges of the two glass plates 14 and 14. An adhesive 22 is infilled into the peripheral edge, outside a position to interpose the spacer 16, of the double glazing 10. A U-shaped cross-section socket part 12a, into which the peripheral edge of the double glazing 10 is to be fitted, is opened in the frame material 12. A protrusion 24, integrally formed on an inner bottom surface where the socket part 12a of the frame material 12 is defined, is inserted into the adhesive 22 of the double glazing 10. The adhesive 22, which is pushed outward by the insertion of the protrusion 24, is infilled into a first gap 26 between a peripheral end surface of the double glazing 10 and the inner bottom surface of the frame material 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multi-layer glass door that can be opened and closed in an openable manner in a storage.

  In a storage such as a refrigerator or a freezer, a door that opens and closes an opening serving as an entry / exit of an article is slidably or rotatably assembled. As this door, since a heat insulating property is required, a multi-layer glass door provided with a multi-layer glass in which a plurality of glass plates are arranged in a layered manner with a predetermined spacing is used. The multi-layer glass is bonded and sealed by separating the glass plates by a predetermined interval through spacers arranged inside the opposing peripheral edges of the plurality of glass plates and filling the outside of the spacers with an adhesive. Thus, the peripheral edge portion of the multilayer glass configured as described above is fitted into a mouth portion having a U-shaped cross section in the frame member to constitute a multilayer glass door (see, for example, Patent Document 1).

  Since the double-glazed glass door disclosed in Patent Document 1 is assembled by inserting a frame material into a pre-assembled double-glazed glass, the double-glazed glass and the frame are completely integrated. It is not easy to leave.

Therefore, before the adhesive of the multilayer glass is solidified, the frame material is fitted, and a reinforcing member projecting from the inner bottom surface of the receiving portion of the frame material is inserted into the adhesive, whereby the multilayer glass and Proposals have been made to improve the adhesion strength with the frame material (see, for example, Patent Document 2).
Utility Model Registration No. 2589158 Japanese Patent Laid-Open No. 10-339075

  In the double-glazed door disclosed in Patent Document 2, the reinforcing member protruding in the receiving portion of the frame member is inserted into the double-glazed adhesive. It did not reach the inner bottom surface of the receiving portion facing this, and it was difficult to say that the double-glazed glass and the frame material were firmly fixed. In addition, since a gap is formed between the peripheral end surface of the multilayer glass and the inner bottom surface of the receiving portion, it is necessary to insert a cushioning material in order to prevent backlash and the like.

  That is, in view of the above-mentioned problems inherent in the prior art, the present invention has been proposed to suitably solve these problems and provides a multilayer glass door in which the multilayer glass and the frame material are firmly fixed. The purpose is to do.

In order to overcome the above-mentioned problems and achieve the intended purpose suitably, the double-glazed door according to the invention of claim 1 of the present application,
In the multi-layer glass door in which the peripheral edge portion of the multi-layer glass filled with the adhesive on the inner side of the opposing peripheral edge portions of the plurality of glass plates spaced apart by a predetermined interval is fitted into the receiving portion having a U-shaped cross section in the frame member,
On the inner bottom surface facing the peripheral end surface of the multilayer glass in the receiving portion of the frame member, a protruding portion to be inserted into the adhesive protrudes.
The adhesive pushed out from the periphery of the multilayer glass by the insertion of the protruding portion is filled in a gap defined between the peripheral end surface of the multilayer glass and the inner bottom surface of the frame member. To do.
According to the first aspect of the present invention, since the adhesive is filled in the gap defined between the peripheral end surface of the multilayer glass and the inner bottom surface of the receiving portion of the frame member, the multilayer glass and the frame The material is firmly fixed. Further, the adhesive filled in the gap functions as a cushioning material, and it is not necessary to use a separate cushioning material, so that the manufacturing cost can be reduced.

According to a second aspect of the present invention, in the multi-layer glass door according to the first aspect of the present invention, the volume of the portion inserted into the adhesive in the protruding portion is set to be larger than the volume of the gap.
According to the second aspect of the present invention, since the adhesive is filled in the gap between the peripheral end surface of the multilayer glass and the inner bottom surface of the receiving port without any substantial gap, the multilayer glass and the frame material are surely secured. And it is firmly fixed.

According to a third aspect of the present invention, in the multi-layer glass door according to the first or second aspect of the present invention, the tip portion of the protruding portion is set to be thicker than the root portion.
According to the third aspect of the invention, since the thick tip portion of the protruding portion is inserted into the adhesive, the protruding portion is difficult to be removed from the adhesive, and reliable fixing is achieved. Further, the pressure applied to the adhesive increases when the protruding portion is inserted into the adhesive, so that the air reservoir in the adhesive can be removed, and the sealing degree is improved.

According to a fourth aspect of the present invention, in the multi-layer glass door according to any one of the first to third aspects of the present invention, the tip of the protruding portion is formed in a concave shape.
According to this invention of Claim 4, when a protrusion part is inserted in an adhesive agent, the pressure added to an adhesive agent becomes high, and a sealing degree improves more.

According to a fifth aspect of the present invention, in the multi-layer glass door according to any one of the first to fourth aspects of the present invention, protrusions projecting toward the glass plate are provided on both inner surfaces facing the glass plate in the receiving portion of the frame member. A plurality of pieces were provided at a predetermined interval in the fitting direction of the multilayer glass with respect to the receiving port.
According to the invention of claim 5, even when the amount of the adhesive pushed out from the peripheral edge of the multilayer glass is larger than the volume of the gap, there is a gap between the glass plate and the inner surface of the receiving portion by the protruding piece. Since it accumulates in the formed space, it is prevented that the adhesive comes out of the frame material.

  According to the multilayer glass door according to the present invention, the adhesive pushed out by inserting the protruding portion of the frame material into the adhesive of the multilayer glass is the peripheral end surface of the multilayer glass and the receiving portion of the frame material. Since the gap defined between the inner bottom surface is filled, the multilayer glass and the frame material are firmly fixed.

  Next, a multi-layer glass door according to the present invention will be described below with reference to the accompanying drawings by way of preferred examples.

  As shown in FIG. 1, a double-glazed glass door disposed in a refrigerated showcase or the like is configured by a transparent double-glazed glass 10 having its four sides (peripheral edges) fitted into a frame member 12. . The multi-layer glass 10 is configured by stacking a plurality of glass plates 14, 14 in a state where a spacer 16 is interposed in an inner portion adjacent to the peripheral edges of the plurality of glass plates 14, 14 facing each other. In the present embodiment, the double-glazed glass 10 is composed of two glass plates 14 and 14 separated by a required interval, and is opposed to each other by a relatively thick spacer 16 interposed between the two glass plates 14 and 14. An air layer 18 as a heat insulating layer is formed between the glass plates 14 and 14. In addition, although the spacer 16 of an Example is formed in the cross-sectional shape by using synthetic resin etc. as a material, for example, the inside is filled with the desiccant 20, However, A solid thing and another structure can be employ | adopted.

  The outer peripheral edge of the multilayer glass 10 from the position where the spacer 16 is interposed is filled with an adhesive 22 inside the glass plates 14 and 14 so as to seal the air layer 18. The The adhesive 22 is filled in a space between the peripheral edge of the multi-layer glass 10 and the spacer 16, and a part of the adhesive 22 is pushed out from the peripheral edge by insertion of a protrusion 24 described later. . The adhesive 22 is preferably made of a material having elasticity even in a hardened state, but is not limited thereto. The adhesive in the present invention is used to include a material having adhesive force such as a caulking material.

  As shown in FIG. 1, the frame member 12 is provided with a U-shaped receiving portion 12 a into which the peripheral portion of the multilayer glass 10 is fitted, and a receiving portion facing the peripheral end surface of the multilayer glass 10. On the inner bottom surface that defines the mouth portion 12a, a protruding portion 24 that protrudes toward the multilayer glass is integrally formed. As shown in FIG. 2, the protruding portion 24 is set such that the tip portion 24 a inserted into the adhesive 22 of the multilayer glass 10 is thicker than the root portion 24 b. Specifically, the tip portion 24a is formed so as to protrude from the root portion 24b to the side (side wall 28 described later), and in a state where the tip portion 24a is inserted into the adhesive 22, the tip portion 24a is bonded. The protruding portion 24 is configured so as not to be easily detached from the adhesive 22 by being wrapped by the agent 22. Further, the first gap (gap) 26 defined between the peripheral end surface of the multilayer glass 10 and the inner bottom surface of the frame member 12 and the second gap 34 described later are provided with a protrusion 24 on the adhesive 22. Is filled with the adhesive 22 extruded from the peripheral edge of the multilayer glass 10. In addition, since the frame material 12 is manufactured by extrusion molding, in consideration of thermal shrinkage (sink) after molding, the thickness of the root portion 24b of the protruding portion 24 in the vertical direction in FIG. 2) and the thickness of the front end portion 24a in the left-right direction in FIG. 2 (thickness corresponding to the protruding direction of the protruding portion 24) are set to be the same as the thickness of the other portions of the frame member 12.

  A volume of a portion (a part of the tip portion 24 a and the root portion 24 b) inserted into the adhesive 22 in the protruding portion 24 is defined between the peripheral end surface of the multilayer glass 10 and the inner bottom surface of the frame member 12. It is set to be larger than at least the volume of the first gap 26, and the adhesive 22 extruded from the multilayer glass 10 is filled in the first gap 26 almost without any gap. In the embodiment, the volume of the portion inserted into the adhesive 22 in the protruding portion 24 is set to be approximately equal to the combined volume of the first and second gaps 26 and 34 and is extruded from the multilayer glass 10. The adhesive 22 thus filled is filled in both the gaps 26 and 34 with substantially no gap. The protrusion 24 is provided over substantially the entire length in the extending direction of the inner bottom surface (the direction perpendicular to the fitting direction of the multilayer glass 10).

  Plural (two in the embodiment) protruding pieces spaced apart in the fitting direction of the multilayer glass 10 with respect to the receiving portion 12a on the inner side surfaces of the side walls 28, 28 defining the receiving portion 12a in the frame member 12. 30 and 32 are projected. Each protrusion 30 and 32 is provided over substantially the entire length in the extending direction of the inner surface (the direction perpendicular to the fitting direction of the multilayer glass 10), and corresponds to the multilayer glass 10 fitted in the receiving portion 12a. The required gap 34 and the space 36 are defined between the glass plate 14 and the inner side surface in contact with the outer surface of the glass plate 14. That is, a second gap 34 communicating with the first gap 26 and filled with the adhesive 22 is defined between the first projecting piece 30 adjacent to the inner bottom face side and the inner bottom face, A space 36 is defined between the one projecting piece 30 and the second projecting piece 32 located on the opening side. The space 36 functions to prevent the adhesive 22 from protruding outside the frame member 12 by receiving and accumulating the adhesive 22 overflowing from the second gap 34.

  Tapered portions 28a that are inclined toward the opening side and reduce the diameter of the opening of the receiving portion 12a are formed on the inner surfaces of the open ends of the side walls 28, 28, respectively. The tip of the tapered portion 28a, that is, the position of the inner surface of the open end of the side wall 28 is set to be substantially the same as the protruding end of the protruding pieces 30 and 32, and the peripheral edge portion of the multilayer glass 10 is fitted in the receiving portion 12a. In this case, the inner side surfaces of the open ends of the side walls 28, 28 are configured to contact the outer surface of the glass plate 14. The frame member 12 is made of hard synthetic resin, and elastic deformation of the side walls 28, 28 is allowed.

(Effects of Example)
Next, the effect | action of the multilayer glass door which concerns on an Example is demonstrated in relation to the process of assembling this glass door. As shown in FIG. 2, the two glass plates 14, 14 are overlapped with the spacers 16 interposed in the vicinity of the peripheral ends of the two glass plates 14, 14. The adhesive 22 is filled in the outer peripheral edge of the glass plates 14 and 14 outside the position where the spacer 16 is interposed, and before the adhesive 22 is solidified, the peripheral edge of the multilayer glass 10 is It fits into the receiving portion 12a of the frame member 12. At this time, the protruding portion 24 is inserted into the adhesive 22, and the adhesive 22 that is not solidified is extruded from the periphery of the multilayer glass 10 to the outside, that is, the first gap 26 and filled. That is, as shown in FIG. 1, an adhesive 22 is filled between the peripheral end surface of the multilayer glass 10 and the inner bottom surface of the frame member 12, and the multilayer glass 10 and the frame member 12 are bonded by the adhesive force of the adhesive 22. Is firmly fixed. In addition, since the adhesive 22 filled in the first gap 26 also functions as a buffer material, it is not necessary to use a buffer material separately, and the number of members and the manufacturing cost can be reduced. In addition, since the assembly of the multilayer glass 10 and the assembly | attachment of the frame material 12 can be performed simultaneously, cost can be reduced.

  In the embodiment, the volume of the portion inserted into the adhesive 22 in the protrusion 24 is set to be approximately equal to the combined volume of the first and second gaps 26, 34. The adhesive 22 extruded from is filled in the gaps 26 and 34 without gaps. Therefore, the adhesion area by the adhesive 22 between the multilayer glass 10 and the frame member 12 is large, and a stronger fixation between the multilayer glass 10 and the frame member 12 is achieved. If the adhesive 22 of the multilayer glass 10 is overfilled and its volume is larger than the volume of both the gaps 26, 34, the adhesive 22 overflowing from the second gap 34 is caused by the protrusions 30, 32. It is received in the defined space 36. That is, since the excessive adhesive 22 is accumulated in the space 36, it is prevented that the adhesive 22 protrudes outside the frame member 12 and the appearance is deteriorated.

  When the peripheral end portion of the multilayer glass 10 is fitted into the receiving portion 12a of the frame member 12, the protruding portion 24 is an adhesive with the glass plates 14 and 14 being regulated by the side walls 28 and 28. Since the pressure is applied to the spacer 16 through the adhesive 22 pressed by the protrusion 24, the adhesion between the spacer 16 and the glass plates 14 and 14 is improved, and the sealing degree is improved. To do. Moreover, since the air reservoir mixed in the inside of the adhesive 22 at this time is pushed out to the outside, the sealing degree can also be improved by this.

  Since the tip portion 24a of the protruding portion 24 inserted into the adhesive 22 is set to be thicker than the root portion 24b, the protruding portion 24 adheres when the adhesive 22 enclosing the tip portion 24a is solidified. It becomes difficult to escape from the agent 22. Accordingly, the multilayer glass 10 and the frame member 12 are securely fixed.

  FIG. 3 shows a modified example of the projecting portion. Basically, the projecting portion 38 is set to have a thick tip portion 38a and a narrow base portion 38b as in the embodiment. And the front-end | tip part 38a is formed in the concave shape where the surface which faces the opening side of the opening part 12a is dented. In the protruding portion 38 formed in this way, the pressure applied to the adhesive 22 when inserted into the adhesive 22 is increased, and the pressure applied to the spacer 16 and the push-out effect of the air pool are increased, and the glass plate 14 is increased. , 14 and the spacer 16 can be further improved.

The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
1. In the embodiment, the double-layer glass is composed of two glass plates. However, the glass plate may be three or more, and is provided corresponding to the frame material in the adhesive filled between the adjacent glass plates. A configuration in which the protruding portions are inserted can be employed.
2. The protruding portion is not limited to a configuration that is provided continuously over substantially the entire length in the extending direction of the inner bottom surface, and a configuration in which the protruding portion is provided discontinuously at a predetermined interval may be employed.
3. The number of protrusions provided on the side wall of the frame member is not limited to two, and may be three or more.
4). The storage in which the multi-layer glass door is adopted is not limited to a refrigerated showcase, and may be a refrigerator, a freezer, a warm storage, or the like. The multi-layer glass door is either a sliding type or a rotating type. May be.

It is sectional drawing which shows the principal part of the multilayer glass door which concerns on the suitable Example of this invention. It is principal part sectional drawing shown in the state which isolate | separated the multilayer glass and frame of the multilayer glass door which concerns on an Example. It is principal part sectional drawing of the frame which shows the protrusion part which concerns on the example of a change.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Multi-layer glass, 12 Frame material, 12a Receiving part, 14 Glass plate, 22 Adhesive 24 Projection part, 26 1st clearance (gap), 30 1st protrusion (protrusion)
32 2nd protrusion (protrusion), 38 protrusion

Claims (5)

The peripheral part of the multi-layer glass (10) filled with the adhesive (22) inside the opposing peripheral part of the plurality of glass plates (14, 14) spaced apart by a predetermined distance is a U-shaped cross section in the frame member (12). In the multi-layer glass door fitted into the receiving part (12a) of
Protruding portions (24, 38) inserted into the adhesive (22) protrude from the inner bottom surface of the receiving portion (12a) of the frame member (12) facing the peripheral end surface of the multilayer glass (10). And
The adhesive (22) extruded from the peripheral edge of the multilayer glass (10) by the insertion of the protrusions (24, 38) is a peripheral end surface of the multilayer glass (10) and the inner bottom surface of the frame member (12). A multi-layer glass door filled in a gap (26) defined between the two.   2. The multi-layer glass door according to claim 1, wherein a volume of a portion of the protruding portion (24, 38) inserted into the adhesive (22) is set larger than a volume of the gap (26).   The multi-layer glass door according to claim 1 or 2, wherein a tip end portion (24a, 38a) of the projecting portion (24, 38) is set to be thicker than a root portion (24b, 38b).   The multi-layer glass door according to any one of claims 1 to 3, wherein a tip of the protruding portion (38) is formed in a concave shape. Protruding pieces (30, 32) projecting toward the glass plate (14) on both inner side surfaces facing the glass plates (14, 14) in the receiving portion (12a) of the frame member (12), The multi-layer glass door according to any one of claims 1 to 4, wherein a plurality of multi-layer glass doors are provided at predetermined intervals in the fitting direction of the multi-layer glass (10) with respect to the portion (12a).

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