Sliding door in interior window device

Abstract

To provide a sliding door in an interior window device.SOLUTION: A sliding door in an interior window device for heat insulation installed inside an existing window is formed by fitting a panel into a space inside a frame of a frame body framed by a molding material made of synthetic resin, and is slidably fitted between an upper rail and a lower rail. The frame body is provided with a slide member (18) at a lower end (17b) of a left and right vertical frames (7)(7) fitting and holding left and right edges of the panel, and the slide member (18) slidably contacts the lower rail (6b), thereby floating a lower surface (17) of the sliding door so that it does not come into contact with the lower rail (6b).SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a sliding door made of a frame panel made of synthetic resin that constitutes an interior window device for thermal insulation or the like. [Background technology]

[0002] The present applicant previously proposed a sliding door for an interior window in which a panel is fitted into a frame member made of a synthetic resin molding (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5322189 Summary of the Invention [Problem to be solved by the invention]

[0004] A sliding door according to the prior art proposed by the present applicant will be described with reference to Figs. 1 to 3.

[0005] As shown in Figure 1, an existing window 2 fitted within a rectangular framed frame 1 has sliding doors 3, 3 formed, for example, by fitting glass panels into an aluminum sash frame, and the window is opened and closed by moving the sliding doors 3, 3 along rail members installed on the upper and lower frames 1a, 1b.

[0006] In contrast, the heat-insulating inner window 4 is provided at hardware stores and the like as a DIY kit consisting of a synthetic resin molding and a panel, and is configured so that the user can simply and easily assemble the frame panels at home to produce the sliding door 5 without needing adhesives or fastening means such as screws. The produced sliding doors 5, 5 are then positioned on the inside (room side) of the existing window 2, and are mounted so as to be freely opened and closed along an upper rail 6a and a lower rail 6b that are installed on the upper and lower frames 1a, 1b with double-sided adhesive tape or the like.

[0007] As shown in FIG. 2, the sliding door 5 is constructed by fitting a panel 10 into the space within a frame body formed by left and right vertical frames 7, 7 and upper and lower horizontal frames 8 and 9, each of which is made of synthetic resin moldings.

[0008] The vertical frame 7, upper horizontal frame 8, and lower horizontal frame 9 are made of the same molding material. Therefore, the same components are denoted by the same reference numerals. As shown in the figure, the vertical frame 7, upper horizontal frame 8, and lower horizontal frame 9 are integrally formed with an inner frame portion 12 having a holding groove 11 into which the panel 10 is inserted from an opening facing the space within the frame, and an outer frame portion 13 forming the groove bottom wall of the holding groove 11. The inner frame portion 12 is provided with guide ribs 12a located near the groove bottom of the holding groove 11 and protruding in opposing directions from both groove walls.

[0009] Opposing elastic lips 14 are integrally formed on both groove walls located on the groove opening side of the retaining groove 11, so that the panel 10 is elastically clamped and held by the elastic lips 14, 14 with its edge inserted into the retaining groove 11. That is, both side edges of the panel 10 are inserted into the retaining grooves 11 of the left and right vertical frames 7, 7 and held by the elastic lips 14, the upper edge of the panel 10 is inserted into the retaining groove 11 of the upper horizontal frame 8 and held by the elastic lips 14, and similarly, the lower edge of the panel 10 is inserted into the retaining groove 11 of the lower horizontal frame 9 and held by the elastic lips 14.

[0010] The lower horizontal frame 9 is integrally formed with an inner frame portion 16 having a retaining groove 15 into which the panel 10 is inserted through an opening facing the space within the frame, and an outer frame portion 17 which forms the bottom wall of the retaining groove 15, and in this respect the configuration is similar to that of the vertical frame 7 and upper horizontal frame 8.

[0011] The panel 10 is constituted by a hollow synthetic resin plate which is integrated with a pair of sheet plates 15 facing each other with a gap therebetween and a number of web plates 16 interposed in parallel therebetween.

[0012] At this time, the panel 10 is fitted into the space within the frame formed by the vertical frames 7, 7 and the upper and lower horizontal frames 8 and 9 with the web plate 16 in a horizontal position.

[0013] However, the sliding doors according to the conventional technology have problems as shown in FIG.

[0014] As described above, the inner window 4, installed on the indoor side of the existing window 2, receives sunlight through the existing window 2. Therefore, the space between the existing window 2 and the inner window 4 becomes extremely hot. And, since the outer wall portion 9A of the lower horizontal frame 9 facing the outdoor side receives direct sunlight, the sliding door 5 heats up more than other portions.

[0015] For this reason, it was found that, among the vertical frames 7, 7 and the upper and lower horizontal frames 8 and 9 that constitute the framework of the sliding door 5, the outer wall portion 9A of the lower horizontal frame 9 in particular expands, and as a result, the lower horizontal frame 9 is curved greatly in an arch shape toward the outside of the room. Incidentally, according to the knowledge of the present inventor, such an arch shape bending is not observed in the upper horizontal frame 8, and it was confirmed that this phenomenon is unique to the lower horizontal frame 9 alone.

[0016] Then, a problem was discovered in that the lower surface of the sliding door 5 did not slide well against the lower rail member 6b, and did not slide properly.

[0017] An object of the present invention is to provide a sliding door in an interior window device that solves the above problems. [Means for solving the problem]

[0018] Therefore, what the present invention configures as a means is a sliding door in an insulating inner window device to be installed inside an existing window, and is formed by fitting a panel into the space within a frame body formed from a synthetic resin molding, and is configured so that it can slide freely between an upper rail and a lower rail, in which the frame body is provided with a sliding member (18) at the lower ends (17b) of the left and right vertical frames (7)(7) which fit and hold the left and right edges of the panel, and the sliding member (18) is brought into slidable contact with the lower rail (6b), thereby raising the underside (17) of the sliding door so that it does not come into contact with the lower rail (6b).

[0019] The panel (10) is constructed of a hollow synthetic resin plate having a number of web plates (16) interposed in parallel between a pair of sheet plates (15)(15) facing each other with a gap between them, and is integrated with the web plates, which are fitted and held in the frame with their tops and bottoms facing inwards.

[0020] The vertical frame (7) is composed of a synthetic resin molding that integrally forms an inner frame portion (12) with a retaining groove (11) into which the panel is inserted from an opening facing the space within the frame, and an outer frame portion (13) having a hollow portion (13a) extending from the bottom wall of the retaining groove, and the slide member (18) is composed of a plate material (19) that is placed on the lower end surfaces of the left and right vertical frames (7) and is fixed by inserting fixing pieces (20) provided on the plate material into the retaining grooves (11).

[0021] The slide member (18) is fixed by fitting an insert piece (21) provided on a plate material (19) into the hollow portion (13a).

[0022] Preferably, the slide member (18) has a fixing piece (20) and an insert piece (21) provided on a plate material (19), and is fixed by fitting the fixing piece (20) into the retaining groove (11) and fitting the insert piece (21) into the hollow portion (13a). Effect of the Invention

[0023] The sliding door 5 of the present invention is formed by fitting a panel into the space within a frame body formed by a synthetic resin molding, and is configured so that it can slide freely between an upper rail and a lower rail. A slide member 18 is provided at the lower ends 17b of the left and right vertical frames 7, 7 which fit and hold the left and right edges of the panel, and the slide member 18 is brought into slidable contact with the lower rail 6b, so that the lower surface 17 of the sliding door is raised so as not to come into contact with the lower rail 6b, which has the effect of allowing the sliding door 5 to be opened and closed smoothly. [Brief description of the drawings]

[0024] [Figure 1]FIG. 1 is a perspective view showing the state before an inner window is attached to an existing window according to the prior art. [Diagram 2] This shows conventional technology for a sliding door that constitutes an interior window, where (A) is an oblique view showing the whole, (B) is a cross-sectional view of the upper horizontal frame, (C) is a cross-sectional view of the lower horizontal frame, and (D) is a cross-sectional view of the vertical frame. [Diagram 3] 1 shows a state in which a conventional inner window is deformed, where (A) is a perspective view and (B) is a cross-sectional view taken along line AA. [Figure 4] FIG. 1 is a perspective view showing a sliding door according to an embodiment of the present invention. [Diagram 5] Regarding an embodiment of the present invention, (A) is an oblique view showing the relationship between the lower rail and the underside of the sliding door, (B) is an oblique view showing the plate material that constitutes the slide member, (C) is an oblique view showing the state in which the plate material is fixed to the lower end surface of the vertical frame, and (D) is a cross-sectional view showing the state in which the fixing piece of the plate material is inserted into the retaining groove of the vertical frame. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] A preferred embodiment of the present invention will now be described in detail with reference to FIG.

[0026] (Basic structure of sliding doors) The sliding door 5 is formed by fitting a panel 10 into a space within a frame body formed into a gate shape by left and right vertical frames 7, 7 and an upper horizontal frame 8.

[0027] The vertical frames 7, 7 and upper horizontal frame 8 have the same configuration as the conventional technology shown in Fig. 2, and the respective components are indicated by the same reference numerals. That is, the vertical frame 7 and upper horizontal frame 8 are integrally formed with an inner frame portion 12 having a retaining groove 11 into which the panel 10 is fitted from an opening facing the frame space, and an outer frame portion 13 forming the groove bottom wall of the retaining groove 11, and are provided with guide ribs 12a located near the groove bottom of the retaining groove 11 and protruding in opposing relation from both groove walls, and are provided with elastic lips 14 located on the groove opening side and protruding in opposing relation from both groove walls.

[0028] As a result, the left and right vertical frames 7, 7 are fixed in a state in which they fit and hold the left and right edges of the panel 10, and the upper horizontal frame 8 is fixed in a state in which it fits and holds the upper edge of the panel 10, and a gate-shaped framework is formed by the vertical frames 7, 7 and the upper horizontal frame 8 via the panel 10, with the downward opening.

[0029] In this case, the panel 10 is constructed of a hollow plate made of synthetic resin in which a number of web plates 16 are integrated in a parallel arrangement between a pair of sheet plates 15, 15, and this respect is similar to the prior art described above, but whereas in the prior art the web plates 16 are inserted into the space within the frame in a horizontal position, in the embodiment of the present invention the web plates 16 are inserted into the space within the frame in a vertical position.

[0030] In the illustrated example, the sliding door 5 has a lower surface 17 formed by the lower edge portion 17a of the panel 10 and the lower ends 17b of the left and right vertical frames 7, 7.

[0031] As with the prior art (see Fig. 1), the sliding door 5 is located on the inside (room side) of the existing window 2 and is mounted so as to be freely opened and closed along an upper rail 6a and a lower rail 6b that are attached to the upper and lower frames 1a, 1b with double-sided adhesive tape or the like, forming an inner window 4 on the room side of the existing window 2. As described above, when the space between the existing window 2 and the inner window 4 becomes extremely hot due to exposure to sunlight, in the prior art there is a problem that the lower horizontal frame 9 bends into a bow shape due to thermal expansion, whereas in the case of the sliding door 5 shown in the figure, no such problem occurs.

[0032] As described above, the panel 10 has a cross-sectional shape in which squares are arranged horizontally by arranging the web plate 16 in a vertical orientation, so that the structure is such that thermal expansion in the lateral direction is suppressed.

[0033] Meanwhile, a slide member 18 that slidably contacts the lower rail 6b is fixed to a predetermined portion of the lower surface 17 of the sliding door 5, which includes the lower edge portion 17a of the panel 10 and the lower ends 17b of the left and right vertical frames 7, 7. As a result, when the sliding door 5 is slidably fitted between the upper rail 6a and the lower rail 6b, the slide member 18 causes the lower surface 17 to float so as not to contact the lower rail 6b. Therefore, when the sliding door 5 is opened or closed, the slide member 18 slides in contact with the lower rail 6b, enabling smooth opening and closing.

[0034] (Embodiment of Slide Member) 4 and 5, the slide member 18 is composed of a plate material 19 disposed on the lower end surfaces of the left and right vertical frames 7, 7. The plate material 19 has a pair of fixing pieces 20, 20 that are fitted into the retaining grooves 11 of the inner frame portion 12 of the vertical frame 7, and an insertion piece 21 that is fitted into the hollow portion 13a of the outer frame portion 13, which protrude upward.

[0035] The fixing pieces 20, 20 are positioned on both sides of the panel 10 fitted and held in the holding groove 11, and are fitted closely between the groove bottom wall 11a of the holding groove 11 and the guide rib 12a.

[0036] In this way, the slide member 18 is fixed to the lower end of the vertical frame 7 by inserting the fixing pieces 20, 20 into the retaining groove 11 and the insertion piece 21 into the hollow portion 13a, and the plate material 19 is overlapped with the lower end surface of the vertical frame 7.

[0037] As shown in Fig. 5(C), the plate material 19 has a predetermined thickness t1, so that when the sliding door 5 is mounted on the lower rail 6b, the lower surface 17 of the sliding door 5 is raised so as not to come into contact with the lower rail 6b. In other words, when the sliding door 5 moves to open or close, only the plate material 19 slides in contact with the lower rail 6b.

[0038] This allows the sliding door 5 to be opened and closed smoothly. [Explanation of symbols]

[0039] 1 stile 1a upper side stile 1b Lower side stile 1c Stiles 2 Existing windows 3. Sliding Door 4. Inner Window 5. Sliding Door 6a Upper rail 6b Lower rail 7 Vertical Frame 8 Upper horizontal frame 9 Lower horizontal frame 9A Outer wall 10 Panel 11 Retaining groove 11a Groove bottom wall 12 Inner frame 12a Guide rib 13 Outer frame 14 Elastic Lip 15 Sheet Board 16 Web Board 17 Underside of sliding door 17a Bottom edge of panel 17b Bottom edge of vertical frame 18 Slide member 19 Plate material 20 Fixed piece 21 Insert

Claims

1. This is a sliding door in an insulating inner window device that is installed inside an existing window, and is formed by fitting a panel into the space within a frame body that is framed by a synthetic resin molding, and is configured to be slidably fitted between an upper rail and a lower rail. The panel (10) is made of a hollow synthetic resin plate having a number of web plates (16) interposed in parallel between a pair of sheet plates (15) (15) facing each other with a gap therebetween, and is fitted and held in the frame with the web plates oriented vertically. The frame body is a sliding door in an interior window device, characterized in that a sliding member (18) is provided at the lower ends (17b) of the left and right vertical frames (7)(7) which fit and hold the left and right edges of the panel, and the sliding member (18) is brought into slidable contact with the lower rail (6b), thereby raising the underside (17) of the sliding door so that it does not come into contact with the lower rail (6b).

2. A sliding door in an insulating inner window device to be installed inside an existing window, the sliding door being formed by fitting a panel into the space within a frame body formed by a synthetic resin molding, and configured so that the panel is slidably fitted between an upper rail and a lower rail. The frame body is configured such that a slide member (18) is provided at the lower ends (17b) of the left and right vertical frames (7), (7) which fit and hold the left and right edges of the panel, and the slide member (18) is brought into slidable contact with the lower rail (6b), thereby lifting the lower surface (17) of the sliding door so as not to come into contact with the lower rail (6b); The vertical frame (7) is constructed from a synthetic resin molded material integrally formed with an inner frame portion (12) having a retaining groove (11) into which the panel is inserted from an opening facing the frame space, and an outer frame portion (13) having a hollow portion (13a) extending from a bottom wall of the retaining groove, The sliding member (18) is composed of a plate material (19) that is placed on the lower end surfaces of the left and right vertical frames (7), and is fixed in place by inserting a fixing piece (20) provided on the plate material into the retaining groove (11).

3. A sliding door in an insulating inner window device to be installed inside an existing window, the sliding door being formed by fitting a panel into the space within a frame body formed by a synthetic resin molding, and configured to be slidably fitted between an upper rail and a lower rail, The frame body is configured such that a slide member (18) is provided at the lower ends (17b) of the left and right vertical frames (7), (7) which fit and hold the left and right edges of the panel, and the slide member (18) is brought into slidable contact with the lower rail (6b), thereby lifting the lower surface (17) of the sliding door so as not to come into contact with the lower rail (6b); The vertical frame (7) is constructed from a synthetic resin molded material integrally formed with an inner frame portion (12) having a retaining groove (11) into which the panel is inserted from an opening facing the frame space, and an outer frame portion (13) having a hollow portion (13a) extending from a bottom wall of the retaining groove, The sliding member (18) is composed of a plate material (19) that is placed on the lower end surfaces of the left and right vertical frames (7), and is fixed in place by inserting an insertion piece (21) provided on the plate material into the hollow portion (13a).

4. A sliding door in an insulating inner window device to be installed inside an existing window, the sliding door being formed by fitting a panel into the space within a frame body formed by a synthetic resin molding, and configured so as to be slidably fitted between an upper rail and a lower rail, The frame body is configured such that a slide member (18) is provided at the lower ends (17b) of the left and right vertical frames (7), (7) which fit and hold the left and right edges of the panel, and the slide member (18) is brought into slidable contact with the lower rail (6b), thereby lifting the lower surface (17) of the sliding door so as not to come into contact with the lower rail (6b); The vertical frame (7) is constructed from a synthetic resin molded material integrally formed with an inner frame portion (12) having a retaining groove (11) into which the panel is inserted from an opening facing the frame space, and an outer frame portion (13) having a hollow portion (13a) extending from a bottom wall of the retaining groove, The sliding member (18) is composed of a plate material (19) that is placed on the lower end surfaces of the left and right vertical frames (7), and the plate material is provided with a fixing piece (20) and an insertion piece (21). The sliding door in an interior window device is characterized in that the sliding member (18) is fixed by fitting the fixing piece (20) into the retaining groove (11) and fitting the insertion piece (21) into the hollow portion (13a).

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