Fitting

Abstract

To provide a fitting that provides preferable heat insulation and condensation prevention properties.SOLUTION: A fitting 10 holds an edge of a panel 24 with an inner peripheral exterior width piece 44a of a metal frame 38 and an interior side ridge 40. The metal frame 38 has a depth portion 42 that extends toward an interior of a room along the projection direction on an outer peripheral side of an edge of the panel 24. The ridge 40 has a metal ridge 50 and a resin ridge 52. The metal ridge 50 and the resin ridge 52 engage with the metal frame 38. The resin ridge 52 and the metal ridge 50 are fixed by crimping at crimp points 68. An interior width wall 52a of the resin ridge 52 and an interior width wall 38a of the metal frame 38 form a planar, continuous interior width surface.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a fitting for holding the edge of a panel by an outdoor finding piece of a metal frame and an indoor side pressing edge.

Background Art

[0002] A window frame is known that holds the four sides of a panel with a pressing edge made of a composite material of metal and resin from the indoor side. In such a window frame provided with such a pressing edge, a suitable heat insulating property and dew condensation preventing action can be obtained by providing a resin material on the indoor side. Since the resin material expands and contracts in the longitudinal direction depending on the temperature, it is desirable to fix it to the metal material. In the window frame disclosed in Patent Document 1, the resin material and the metal material are fixed by screws.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When fixing the resin material and the metal material with screws, the fixing portion requires an area that secures a slight margin with respect to the diameter of the head of the screw and becomes slightly large. Therefore, the area where the metal material overlaps the resin material becomes large, and the heat insulating property and dew condensation preventing property of the resin material deteriorate.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a fitting that can obtain suitable heat insulating properties and dew condensation preventing properties.

Means for Solving the Problems

[0006] In order to solve the above-described problems and achieve the object, a fitting according to the present invention is a fitting that holds the edge of a panel by an outdoor finding piece of a metal frame and an indoor pressing edge, wherein the metal frame includes a prospective portion that extends indoors along the prospective direction on the outer peripheral side of the edge of the panel, the pressing edge includes a metal pressing edge and a resin pressing edge, the metal pressing edge engages with the metal frame, the resin pressing edge engages with the metal frame or a resin frame combined with the metal frame, and the resin pressing edge and the metal pressing edge are caulked and fixed.

Effect of the Invention

[0007] In the fitting according to the present invention, the prospective dimension required for the protruding piece for caulking and fixing is small, the contact area with the resin pressing edge is suppressed, and the dimension up to the indoor finding surface of the resin pressing edge is ensured to be relatively large, so that suitable heat insulation and dew condensation prevention properties can be obtained.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments of the fitting according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by this embodiment.

[0010] Hereinafter, for the sake of convenience, the terms "expected direction" and "finding direction" may be used. The expected direction is the direction along the depth of the fitting. The surface and wall along the expected direction may be referred to as the expected surface and the expected wall, respectively. The finding direction is the direction along the vertical direction perpendicular to the expected direction in the case of an object extending along the horizontal direction such as a lower frame. In the case of an object extending along the vertical direction such as a vertical frame, the finding direction is the direction along the horizontal direction perpendicular to the expected direction. The surface and wall along the finding direction may be referred to as the finding surface and the finding wall, respectively.

[0011] FIG. 1 is a longitudinal sectional view of a fitting 10 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the fitting 10. The fitting 10 is a vertically sliding window that holds a shoji 14 on the inner peripheral side of a frame body 12 and slides the shoji 14 outward to the outside of the room along a rail to open it.

[0012] The shoji 14 is configured by disposing a panel 24 inside a frame body 22 formed by surrounding a lower frame 16, an upper frame 18, and left and right vertical frames 20. In the present application, a molding that holds the edge of the panel is a frame material in a broad sense. Therefore, the lower frame 16, the upper frame 18, and the vertical frames 20 are frame materials in a broad sense, and the frame body 22 is a frame body in a broad sense. The frame body 12 is configured by surrounding a lower frame 26, an upper frame 28, and left and right vertical frames 30. Each frame material and each frame member are composite materials in which a metal such as an aluminum alloy and an extruded molding of a resin material are combined, and are configured to have a substantially uniform cross-sectional shape over the entire length along the longitudinal direction. The same applies to the fitting 10A described later.

[0013] The lower frame 26 is composed of a metal lower frame 26a mainly constituting the outer peripheral side and the outdoor side and a resin lower frame 26b mainly constituting the inner peripheral side and the indoor side. The resin lower frame 26b may constitute a part of the floor surface. The upper frame 28 is composed of a metal upper frame 28a mainly constituting the outer peripheral side and the outdoor side and a resin upper frame 28b mainly constituting the inner peripheral side and the indoor side. The left and right vertical frames 30 basically have a bilaterally symmetric structure. The vertical frame 30 is composed of a metal vertical frame 30a mainly constituting the outer peripheral side and the outdoor side and a resin vertical frame 30b mainly constituting the inner peripheral side and the indoor side. Thus, the frame body 12 is a metal-resin composite window frame. A hollow portion is provided between each metal frame and each resin frame to provide heat insulation. Each resin frame functions as a decorative frame. In this embodiment, the metal upper frame 28a and the metal vertical frame 30a have the same shape except for details such as screw holes and some dimensions. In this embodiment, the resin upper frame 28b and the resin vertical frame 30b have the same shape except for dimensions such as the found dimensions. The expected dimensions of each resin frame are the same.

[0014] The lower frame 16 and the upper frame 18 basically have an up-down symmetric structure. The left and right vertical frames 20 basically have a bilaterally symmetric structure. Between the lower frame 16 and the lower frame 26, between the upper frame 18 and the upper frame 28, and between the vertical frame 20 and the vertical frame 30, a seal 31 is provided in the gap in the expected direction. Between the lower frame 16 and the lower frame 26, and between the upper frame 18 and the upper frame 28, a link mechanism 32 for a sliding-out function is provided in the gap in the found direction. A pulling member 34 is provided between the left vertical frame 20 and the vertical frame 30 in FIG. 2. Since the vertical sliding window is not directly connected by a hinge, when it is closed, the shoji is pulled toward the indoor side by the pulling member 34 using the inclination. A handle 36 is provided on the right vertical frame 20 in FIG. 2, and engages and disengages with the latch member of the vertical frame 30 to open and close the shoji 14. In this embodiment, the panel 24 is a multilayer glass.

[0015] The lower frame 16 will be described. Since the upper frame 18 is symmetric with the lower frame 16 about the up-down direction, the same reference numerals are given and detailed description is omitted. Also, the left and right vertical frames 20 only differ from the lower frame 16 in the shape and the found width of the indoor-side hollow portion 42c described later, and detailed description is omitted.

[0016] Figure 3 is a longitudinal sectional view of the lower frame 16. Figure 4 is a longitudinal sectional view of the pressing edge 40. The lower frame 16 has a metal frame 38 and a pressing edge 40. Among these, the pressing edge 40 is composed of a metal pressing edge 50 and a resin pressing edge 52, and the lower frame 16 is a metal-resin composite frame.

[0017] The metal frame 38 has a prospective part 42 provided along the prospective direction on the outer peripheral side of the edge of the panel 24 as a base. On the outdoor side, an inner peripheral side outdoor finding piece 44a protruding toward the inner peripheral side and an outer peripheral side outdoor finding piece 44b protruding toward the outer peripheral side are provided. The inner peripheral side outdoor finding piece 44a and the outer peripheral side outdoor finding piece 44b form a continuous finding surface. A pocket 44c is provided at the indoor side end of the inner peripheral side outdoor finding piece 44a. A seal 46a and a backup material 46b are provided between the pocket 44c and the outdoor side lower edge part of the panel 24. Seal means other than the seal 46a may be provided in the pocket 44c. The seal 46a and the backup material 46b are provided across the four circumferences of the outdoor side and the indoor side of the panel 24.

[0018] The prospective part 42 has an outdoor side hollow part 42a, a central hollow part 42b, and an indoor side hollow part 42c formed side by side in the prospective direction. Bore holes 48 are provided in the central hollow part 42b and the indoor side hollow part 42c. The outdoor side hollow part 42a is substantially square and is almost entirely on the outdoor side of the panel 24. Half of the outdoor side of the central hollow part 42b has the same finding width as the outdoor side hollow part 42a, and the width of the indoor side half is slightly smaller. In the central hollow part 42b, a prospective piece 42d slightly protrudes toward the indoor side at the central step part, forming a groove-shaped pressing edge mounting base 42e. A part of the central hollow part 42b extends toward the indoor side from the panel 24.

[0019] The indoor-side hollow portion 42c is further on the indoor side than the central hollow portion 42b, and has a larger finding width than the outdoor half of the central hollow portion 42b and the outdoor-side hollow portion 42a. In this embodiment, the prospective width of the indoor-side hollow portion 42c is about 2 / 3 of that of the central hollow portion 42b. A rectangular depression 42f is formed in the inner peripheral side portion at the indoor-side end of the indoor-side hollow portion 42c. The indoor-side finding wall 38a of the metal frame 38 forms the entire indoor side surface of the indoor-side hollow portion 42c and the indoor-side wall of approximately half of the finding width in the depression 42f. A claw 38b protruding outward is provided at the inner peripheral side end of the indoor-side finding wall 38a. The inner peripheral side prospective surface of the indoor-side hollow portion 42c protrudes slightly outward to form a pressing edge engaging protrusion 42g.

[0020] Between the outdoor-side finding wall 42h of the indoor-side hollow portion 42c and the indoor-side approximately half prospective wall 42i of the central hollow portion 42b, a prospective piece 42d and a pressing edge engaging protrusion 42g protruding on the inner peripheral side form an engaging piece accommodating groove 42j. The engaging piece accommodating groove 42j is a portion for accommodating the outer peripheral engaging piece 50c, the prospective piece 50d, and the gentle bending portion 50f, which will be described later. The engaging piece accommodating groove 42j is slightly long in the prospective direction. The outdoor-side prospective piece 42d is slightly on the outer peripheral side of the outdoor-side pressing edge engaging protrusion 42g. The prospective piece 42d is on the outdoor side of the indoor-side surface of the panel 24, and the pressing edge engaging protrusion 42g is on the indoor side.

[0021] The pressing edge 40 includes a metal pressing edge 50 and a resin pressing edge 52. Basically, the metal pressing edge 50 is on the outdoor side and the resin pressing edge 52 is on the indoor side. The metal pressing edge 50 is an extruded profile formed of a metal such as an aluminum alloy, and has a panel support piece 50a, an inner peripheral engaging portion 50b, and an outer peripheral engaging piece 50c. The panel support piece 50a extends along the finding direction. Two metal engaging portions 54, 56 and a protruding piece 50e are provided on the finding surface facing the indoor side of the panel support piece 50a. There is a gap 50g between the metal engaging portion 54 and the metal engaging portion 56. A shallow depression 57 is formed on the outdoor side of the panel support piece 50a, which is opposite to the gap 50g. The inner peripheral side wall of the depression 57 forms a resin engaging portion 62, which will be described later.

[0022] The metal engaging portions 54 and 56 are arranged in the finding direction, with the metal engaging portion 54 on the outer peripheral side and the metal engaging portion 56 on the inner peripheral side. The metal engaging portion 54 has an L shape and includes a bent base portion 54a that protrudes from the panel support piece 50a toward the indoor side, and a bent portion 54b whose tip is bent toward the outer peripheral side. The metal engaging portion 56 has a square U shape and is bent in three steps from the tip of the panel support piece 50a toward the indoor side, the inner peripheral side, and the outdoor side, respectively.

[0023] The protruding piece 50e protrudes from a portion of the panel support piece 50a that is on the outer peripheral side of the metal engaging portion 54 toward the indoor side. The dimension L0 of the protruding piece 50e in the prospective direction is short, for example, about 3 mm.

[0024] The inner peripheral engaging portion 50b extends from the edge portion on the outer peripheral side of the panel support piece 50a toward the outdoor side, and then curves toward the outer peripheral side to form a groove 50ba that opens to the indoor side. A portion of the edge of the panel support piece 50a slightly protrudes into the inner peripheral side of this groove 50ba. The pressing edge engaging protrusion 42g is inserted and engaged into the groove 50ba from the indoor side, and the metal pressing edge 50 is engaged with the metal frame 38.

[0025] The outer peripheral engaging piece 50c extends obliquely from the edge portion on the outer peripheral side of the inner peripheral engaging portion 50b toward the outdoor side so as to gradually become the outer peripheral side, and then bends to form a prospective piece 50d that extends in the prospective direction toward the outdoor side. The outdoor side edge of the prospective piece 50d forms a gentle bending portion 50f that bends slightly toward the inner peripheral side. The gentle bending portion 50f of the prospective piece 50d is a part of the outer peripheral engaging piece 50c. The prospective piece 50d is in contact with the inner peripheral side wall of the central hollow portion 42b. The gentle bending portion 50f enters the pressing edge mounting base 42e and abuts against the outer peripheral side surface of the prospective piece 42d.

[0026] The resin pressing edge 52 is an extruded shape formed of resin and has a hollow portion 58 and two resin engaging portions 60 and 62. The hollow portion 58 is substantially square and is partitioned by a partition 58a into an inner peripheral side air chamber 58b and an outer peripheral side air chamber 58c of the same shape. By partitioning the hollow portion 58 into two air chambers, the heat insulation and strength are improved.

[0027] The resin engaging portions 60 and 62 are arranged in the finding direction, with the resin engaging portion 60 on the outer peripheral side and the resin engaging portion 62 on the inner peripheral side. The resin engaging portion 60 has an L shape and includes a bent base portion 60a that protrudes from the panel support piece 50a to the outdoor side, and a bent portion 60b whose tip is bent to the inner peripheral side. The resin engaging portion 62 has a square U shape, and the inner peripheral side wall of the hollow portion 58 extends to the outdoor side and is bent in two steps from its tip to the outer peripheral side and the indoor side, respectively.

[0028] The bent portion 54b of the metal engaging portion 54 has the same length in the finding direction as the bent portion 60b of the resin engaging portion 60, and the L-shaped metal engaging portion 54 and the resin engaging portion 60 engage with each other with almost no gap. Also, the bent portion 54b is sandwiched between the panel support piece 50a and the bent portion 60b, and the bent portion 60b is sandwiched between the bent portion 54b and the finding wall of the hollow portion 58. The bent portion 54b and the bent portion 60b are adjacent and in contact with each other in the prospective direction. Further, the bent base portion 60a of the resin engaging portion 60 is sandwiched and caulked and fixed by the tip of the bent portion 54b and the protruding piece 50e.

[0029] For caulking and fixing, as shown by the virtual line in Fig. 4, the inner peripheral surface of the resin pressing edge 52 is supported by the fixing base 64, and the protruding piece 50e is pressed from the outer peripheral side with the punch 66. Thereby, the resin pressing edge 52 is fixed to the metal pressing edge 50, and even if the resin pressing edge 52 expands and contracts in the longitudinal direction due to temperature, it will not detach from the metal pressing edge 50. The caulking location is indicated by reference numeral 68. The caulking location 68 is provided at one location or at a plurality of locations along the longitudinal direction of the pressing edge 40. When the caulking location 68 is at one location, for example, it is provided near one end of the pressing edge 40. When the caulking location 68 is at two locations, for example, it is provided near both ends of the pressing edge 40. The caulking locations 68 may be provided adjacent to each other to improve the fixing strength.

[0030] The caulked portion 68 is basically formed by the manufacturer of the fitting 10, and at the construction site, the pressing edge 40 can be treated as substantially one member. The caulked portion 68 only needs to have an area that can be pressed by the punch 66, and as described above, the expected dimension L0 of the protruding piece 50e is small. In the present embodiment, the indoor-side end of the protruding piece 50e and the outdoor-side end of the hollow portion 58 are at the expected position where they coincide. The protruding piece 50e has a positioning effect on the resin pressing edge 52 by sandwiching the bending base portion 60a together with the bending portion 54b.

[0031] The square U-shaped metal engaging portion 56 and the resin engaging portion 62 are engaged with each other, but a slight gap is ensured so as not to affect the meshing of the metal engaging portion 54 and the resin engaging portion 60. Between the metal engaging portion 56 and the resin engaging portion 62, and between the metal engaging portion 54 and the resin engaging portion 60, the metal pressing edge 50 and the resin pressing edge 52 are meshed by sliding them in the longitudinal direction, and then the above caulking is performed.

[0032] The indoor-side finding wall 52a of the resin pressing edge 52 protrudes to the outer peripheral side of the hollow portion 58 and covers substantially the inner peripheral side half of the recess 42f. An engaging portion 52b is provided at the tip of the indoor-side finding wall 52a. The engaging portion 52b extends further to the outer peripheral side through a step portion 52c that is slightly shifted to the outdoor side from the tip of the indoor-side finding wall 52a, and a claw 52d that protrudes to the inner peripheral side is provided at the outer peripheral side tip. The engaging portion 52b engages with the metal frame 38 when the claw 52d engages with the claw 38b. That is, the resin pressing edge 52 engages with the indoor-side finding wall 38a of the metal frame 38 on the outdoor side. Since the step portion 52c is formed in the engaging portion 52b, the indoor-side finding walls 38a and 52a form a continuously planar indoor-side finding surface, which is suitable in terms of design and is also easy to guide condensed water and the like downward.

[0033] The prospective dimension L1 of the hollow portion 58 is wide enough to accommodate the internal mechanism of the handle 36 (see FIG. 2). The prospective width of the resin edge 52 including the resin engaging portions 60 and 62 is about the same as that of the indoor-side hollow portion 42c. The found dimension L2 of the hollow portion 58 is suppressed to a level necessary and sufficient for forming the resin engaging portions 60 and 62. Relatively, the area of the panel 24 is large and the lower frame 16 is narrow, which is aesthetically suitable and improves the heat insulation property.

[0034] As shown in FIG. 3, a seal 46a and a backup material 46b are provided between the outdoor-side surface of the edge 40 and the indoor-side lower edge portion of the panel 24. That is, the edge of the panel 24 is held by the outdoor-side found piece 44a on the inner peripheral side of the metal frame 38 and the indoor-side edge 40. The lower frame 16 has a panel opening 70 that opens to the inner peripheral side by the outdoor-side found piece 44a on the inner peripheral side and the edge 40, and the panel 24 is supported by a setting block 72 within the panel opening 70.

[0035] FIG. 5 is a schematic diagram showing a state of attaching the edge 40 to the metal frame 38. When attaching the edge 40 to the metal frame 38, the panel 24 is set in the panel opening 70, and the shoji 14 is closed with respect to the frame body 12. At this stage, the seal 46a and the backup material 46b are not provided on the indoor side of the panel 24.

[0036] When attaching the edge 40 to the metal frame 38, the edge 40 is inclined and the gently bent portion 50f is inserted into the edge attaching base portion 42e. With this portion as a base point, the indoor side, that is, the portion of the resin edge 52, is pressed so as to draw a rotation locus as shown by the arrow in FIG. 5. As a result, on the outdoor side, the inner peripheral engaging portion 50b and the edge engaging projection 42g are engaged, and on the indoor side, the engaging portion 52b and the claw 52d are engaged, stabilizing the edge 40. Also, the engagement between the prospective piece 42d and the gently bent portion 50f contributes to stable engagement. After attaching the edge 40, the seal 46a and the backup material 46b may be provided between the edge 40 and the panel 24. In this way, the edge 40 can be easily attached at the construction site.

[0037] The engaging portion 52b is configured to engage with the indoor-side finding wall 38a on the outdoor side, and the claw 52d protrudes toward the indoor side. When engaging with the claw 38b of the metal frame 38, it temporarily displaces slightly toward the outdoor side, but does not displace toward the indoor side and will not contact or damage the seal 31, the resin lower frame 26b, etc. When the claw 52d of the engaging portion 52b engages with the claw 38b, the resin pressing edge 52 receives a force that temporarily rotates counterclockwise in FIG. 5 around the vicinity of the inner peripheral engaging portion 50b, but does not rotate counterclockwise and there is no interference with the panel 24.

[0038] In the structure of the pressing edge 40, when an external force that presses the panel 24 toward the indoor side acts due to the outdoor wind pressure (positive pressure), the panel support piece 50a of the metal pressing edge 50 moves toward the indoor side via the inner peripheral engaging portion 50b. In this case, the flexible bending portion 50f of the metal pressing edge 50 abuts against the prospective piece 42d provided on the metal frame 38, thereby restricting the movement of the panel support piece 50a toward the indoor side, and it is possible to prevent the situation where the pressing edge 40 falls off from the metal frame 38. In addition, when the panel support piece 50a moves toward the indoor side, the movement of the resin pressing edge 52 is restricted because the engaging portion 52b provided on the resin pressing edge 52 abuts against the indoor-side finding wall 38a. Therefore, the situation where the panel support piece 50a moves toward the indoor side via the resin pressing edge 52 is restricted, and the falling off of the pressing edge 40 is more reliably prevented.

[0039] On the other hand, when an external force that pulls the panel 24 toward the outdoor side acts due to the outdoor wind pressure (negative pressure), the panel support piece 50a of the metal pressing edge 50 moves toward the outdoor side via the inner peripheral engaging portion 50b. In this case, the flexible bending portion 50f of the metal pressing edge 50 abuts against and is supported by the prospective surface on the inner peripheral side of the prospective portion 42, thereby restricting the movement of the panel support piece 50a toward the outdoor side, and it becomes possible to prevent the situation where the pressing edge 40 falls off from the metal frame 38.

[0040] In the above-mentioned fitting 10, the pressing edge 40 includes a metal pressing edge 50 and a resin pressing edge 52, and the metal pressing edge 50 and the resin pressing edge 52 are respectively engaged with the metal frame 38 to be stable. Further, the metal pressing edge 50 and the resin pressing edge 52 are caulked and fixed, and the position is maintained even when the resin pressing edge 52 expands and contracts due to temperature. The expected dimension L0 required for the protruding piece 50e for caulking and fixing is small, the contact area with the resin pressing edge 52 is suppressed, and the dimension L1 from the resin pressing edge 52 to the indoor finding surface is ensured to be relatively large, obtaining suitable heat insulation properties and dew condensation prevention properties.

[0041] In addition to caulking and fixing, fixing with screws is also conceivable. For example, when using an M4 screw, the head of the screw is about 8 mm, and when ensuring some margin, the expected dimension L0 requires at least about 10 mm, and the distance to the indoor finding wall 52a becomes short, resulting in a decrease in heat insulation properties and dew condensation prevention properties. In the present embodiment, the dimension L0 can be kept short, and there are no inconveniences such as in the case of screws. In caulking and fixing, operations such as drilling a pilot hole during screwing are unnecessary.

[0042] The metal pressing edge 50 and the resin pressing edge 52 are caulked and fixed at the engagement location closest to the indoor corner of the panel 24 among the contact locations with each other, and the distance from this part to the indoor finding surface and the inner peripheral expected surface of the resin pressing edge 52 is ensured, obtaining more suitable heat insulation properties.

[0043] The metal frame 38 has a pressing edge engagement protrusion 42g at a portion on the indoor side of the panel 24, and the metal pressing edge 50 has an inner peripheral engagement portion 50b that engages with the pressing edge engagement protrusion 42g and an outer peripheral engagement piece 50c that engages with the metal frame 38 at a position on the outdoor side and the outer peripheral side of the pressing edge engagement protrusion 42g. With such a structure, the wind pressure resistance performance is improved.

[0044] The outer peripheral engagement piece 50c is configured to hang on the outer peripheral surface with respect to the expected piece 42d protruding to the indoor side formed on the metal frame 38, and can be mounted so as to draw a rotation locus with this part as a reference.

[0045] The resin edge trim 52 forms a hollow portion 58, and is caulked and fixed to the metal edge trim 50 on the outdoor side of the hollow portion 58. Although it is considered that heat is easily transmitted at the caulked portion 68, the caulked portion 68 is on the outdoor side of the hollow portion 58, and it is difficult for heat to transfer to the hollow portion 58. The caulked portion 68 is at the extension of the prospective wall on the outer peripheral side forming the hollow portion 58, which is suitable in terms of strength for caulking, easy to caulk in the finding direction, and moreover, the distance L2 to the inner peripheral side surface of the resin edge trim 52 is appropriately ensured so that heat is difficult to transfer indoors.

[0046] The bent portion 54b of the metal engaging portion 54 has the same length in the finding direction as the bent portion 60b of the resin engaging portion 60, and sandwiches and caulks and fixes the bent base portion 60a with the protruding piece 50e, and appropriate caulking pressure is applied to achieve high strength.

[0047] FIG. 6 is a longitudinal sectional view of the fitting 10A according to another embodiment. FIG. 7 is a cross-sectional view of the fitting 10A. The fitting 10A is a FIX window including a frame body 86 formed by surrounding a lower frame 80, an upper frame 82, and left and right vertical frames 84, and a panel 24 such as a double-layer glass disposed inside the frame body 86. In the FIX window, the panel 24 is held on the inner peripheral side of the frame body 86 and is fixedly installed so as not to be opened or closed.

[0048] The lower frame 80 is mainly composed of a metal lower frame 80a that constitutes the outer peripheral side and the outdoor side, and a resin lower frame 80b that mainly constitutes the inner peripheral side and the indoor side. The upper frame 82 is mainly composed of a metal upper frame 82a that constitutes the outer peripheral side and the outdoor side, and a resin upper frame 82b that mainly constitutes the inner peripheral side and the indoor side. The left and right vertical frames 84 basically have a bilaterally symmetric structure. The vertical frame 84 is mainly composed of a metal vertical frame 88 that constitutes the outer peripheral side and the outdoor side, and a resin vertical frame 90 that mainly constitutes the inner peripheral side and the indoor side. A hollow portion is provided between each metal frame and each resin frame to provide heat insulation.

[0049] As shown in Fig. 7, a pressing edge 40 is attached to the vertical frame 84. The pressing edge 40 is the same as that in the above-mentioned fitting 10. The panel 24 is held between the outdoor finding piece 88a on the inner peripheral side of the metal vertical frame 88 and the pressing edge 40 via a seal 46a and a backup material 46b. The metal vertical frame 88 has a prospective piece 42d, a pressing edge engaging projection 42g, and an engaging piece accommodating groove 42j similar to those of the above-mentioned metal frame 38, and accommodates and holds the outer peripheral engaging piece 50c of the metal pressing edge 50.

[0050] The metal vertical frame 88 extends longer on the indoor side than the above-mentioned metal frame 38. The intermediate finding wall 88b in the middle of the prospective direction in the metal vertical frame 88 corresponds to the above-mentioned outdoor finding wall 42h, and a pressing edge engaging projection 42g is provided at the inner peripheral end portion toward the outdoor side. A first resin engaging portion 88c is provided on the indoor side surface of the intermediate finding wall 88b. The first resin engaging portion 88c is composed of a small projection 88ca and an L-shaped projection 88cb. The L-shaped projection 88cb has an L-shaped bent toward the inner peripheral side. The tips of the small projection 88ca and the L-shaped projection 88cb form a narrow opening.

[0051] A second resin engaging portion 88d is provided at the indoor side end portion of the metal vertical frame 88. The second resin engaging portion 88d has a projecting piece 88da facing the inner peripheral side and an L-shaped projection 88db. The L-shaped projection 88db projects slightly toward the indoor side from the end portion of the projecting piece 88da, and then projects by the same amount as the projecting piece 88da toward the inner peripheral side. A small bulging portion 88dc is formed at the middle portion of the projecting piece 88da.

[0052] The resin vertical frame 90 is a member long in the prospective direction. A thin rectangular hollow portion 90a serves as a base, and it has a first projecting wall 90b whose outer peripheral wall extends toward the outdoor side, a second projecting wall 90c whose inner side wall extends toward the outer peripheral side, and a third projecting wall 90d whose inner peripheral wall extends toward the indoor side.

[0053] At the tip of the first protruding wall 90b, a first metal engaging portion 90e bent outward in the circumferential direction is provided. The first metal engaging portion 90e enters the opening of the first resin engaging portion 88c, and the outward-facing claws are fitted and fixed between the small protrusion 88ca and the base end portion of the L-shaped protrusion 88cb. At the tip of the second protruding wall 90c, a second metal engaging portion 90f bent in a crank shape is provided. The second metal engaging portion 90f enters the opening of the second resin engaging portion 88d, and the two outward-facing claws engage with each other so as to sandwich the bulging portion 88dc. Further, the crank-shaped bent portion of the second metal engaging portion 90f abuts against the end portion of the L-shaped protrusion 88cb and is stabilized. In this way, the resin vertical frame 90 is firmly fixed to the metal vertical frame 88.

[0054] An engaging protrusion 90g protrudes from the outdoor side surface of the hollow portion 90a and engages with the claw 52d of the engaging portion 52b in the same manner as the claw 38b described above. That is, although the object to be engaged by the engaging portion 52b of the pressing edge 40 is not a metal material, the resin vertical frame 90 is firmly fixed to the metal vertical frame 88 and has the same function as the fitting 10. In the pressing edge 40 of the fitting 10A, the protruding piece 50e and the bent base portion 60a are caulked and fixed at the caulking portion 68 and have the same function as described above.

[0055] The present invention is not limited to the above-described embodiments, and it goes without saying that it can be freely changed without departing from the gist of the present invention.

[0056] The fitting according to the present invention is a fitting that holds the edge of a panel by an outdoor finding piece of a metal frame and an indoor pressing edge. The metal frame includes a prospective portion that extends indoors along the prospective direction on the outer peripheral side of the edge of the panel. The pressing edge includes a metal pressing edge and a resin pressing edge. The metal pressing edge engages with the metal frame, and the resin pressing edge engages with the metal frame or a resin frame combined with the metal frame. The resin pressing edge and the metal pressing edge are caulked and fixed.

[0057] In such a fitting, the expected dimension required for the protruding piece for caulking fixation is small, the contact area with the resin edge strip is suppressed, and a relatively large dimension up to the indoor finding surface of the resin edge strip is ensured, thereby obtaining suitable heat insulation properties and dew condensation prevention properties.

[0058] The resin edge strip and the metal frame may form a continuously planar indoor finding surface. Thereby, it is suitable in terms of design.

[0059] The resin edge strip may be engaged on the outdoor side with respect to the indoor finding wall of the metal frame. Thereby, it becomes easier for the resin edge strip and the metal frame to be planar.

[0060] The metal edge strip and the resin edge strip may be caulked and fixed at the location closest to the indoor corner of the panel among the locations where they engage with each other. The distance from this portion to the indoor finding surface and the inner peripheral side expected surface of the resin edge strip is ensured, and more suitable heat insulation properties are obtained.

[0061] The metal frame may have an edge strip engaging projection in a portion that is on the indoor side of the panel, and the metal edge strip may have an inner peripheral engaging portion that engages with the edge strip engaging projection and an outer peripheral engaging piece that engages with the metal frame at a position that is on the outdoor side and outer peripheral side of the edge strip engaging projection. Thereby, suitable wind pressure resistance performance is obtained.

[0062] If the outer peripheral engaging piece is hung on the outer peripheral surface with respect to the expected piece protruding toward the indoor side formed on the metal frame, it can be mounted so as to draw a rotation locus with this portion as a reference.

[0063] The resin edge strip forms a hollow portion, and if it is caulked and fixed to the metal edge strip on the outdoor side of the hollow portion, a hollow portion is interposed between the indoor side, and more suitable heat insulation properties and dew condensation prevention properties are obtained.

[0064] The resin pressing edge is provided with a resin engaging portion that protrudes to the outdoor side and has a tip bent to the inner peripheral side. The metal pressing edge is provided with a metal engaging portion that protrudes to the indoor side and has a tip bent to the outer peripheral side, and a protruding piece that protrudes to the indoor side. The bent portion of the metal engaging portion and the bent portion of the resin engaging portion are adjacent to each other, and the bent base portion of the resin engaging portion may be sandwiched and caulked by the tip of the bent portion of the metal engaging portion and the protruding piece. Thereby, caulking pressure is appropriately applied to achieve high strength.

Explanation of Signs

[0065] 10, 10A Fittings, 14 Shoji, 16 Lower Frame, 24 Panel, 26 Lower Sash, 38 Metal Frame, 38a, 52a Indoor Finding Wall, 40 Pressing Edge, 42 Projection Portion, 42d Projection Piece, 42e Pressing Edge Mounting Base, 42g Pressing Edge Engaging Projection, 42j Engagement Piece Accommodation Groove, 44a Inner Peripheral Side Outdoor Finding Piece, 50 Metal Pressing Edge, 50a Panel Support Piece, 50b Inner Peripheral Engagement Portion, 50c Outer Peripheral Engagement Piece, 50d Projection Piece, 50e Protruding Piece, 50f Gentle Bending Portion, 52 Resin Pressing Edge, 52b Engagement Portion, 54, 56 Metal Engagement Portions, 54a Bending Base Portion, 54b Bending Portion, 58 Hollow Portion, 60, 62 Resin Engagement Portions, 60a Bending Base Portion, 68 Caulking Location

Claims

1. A fitting for holding the edge of a panel by an outdoor-exposed piece of a metal frame and an indoor pressing edge, wherein the metal frame includes a prospective part that extends indoors along the prospective direction on the outer peripheral side of the edge of the panel, the pressing edge includes a metal pressing edge and a resin pressing edge, the metal pressing edge engages with the metal frame, the resin pressing edge engages with the metal frame or a resin frame combined with the metal frame, and the resin pressing edge and the metal pressing edge are caulked and fixed. A fitting characterized by the above.

2. The resin pressing edge and the metal frame form an indoor-facing surface that is continuously planar. The fitting according to claim 1, characterized by the above.

3. The resin pressing edge engages with the indoor-facing wall of the metal frame on the outdoor side. The fitting according to claim 1 or 2, characterized by the above.

4. The metal pressing edge and the resin pressing edge are caulked and fixed at the location closest to the indoor corner of the panel among the engaging portions with each other. The fitting according to claim 1, characterized by the above.

5. The metal frame has a pressing-edge engaging projection at a portion that is on the indoor side of the panel. The metal pressing edge has an inner peripheral engaging portion that engages with the pressing-edge engaging projection, and an outer peripheral engaging piece that engages with the metal frame at a position that is on the outdoor side and outer peripheral side of the pressing-edge engaging projection. The fitting according to claim 1, characterized by the above.

6. The outer peripheral engaging piece hangs on the outer peripheral surface with respect to a prospective piece that protrudes indoors and is formed on the metal frame. The fitting according to claim 5, characterized by the above.

7. The resin pressing edge forms a hollow portion, and is caulked and fixed to the metal pressing edge on the outdoor side of the hollow portion. The fitting according to claim 1, characterized by the above.

8. The resin pressing edge includes a resin engaging portion that protrudes outdoors and has a tip bent inwardly. The metal pressing edge includes a metal engaging portion that protrudes indoors and has a tip bent outwardly, and a protruding piece that protrudes indoors. The bent portion of the metal engaging portion and the bent portion of the resin engaging portion are adjacent to each other, and the tip of the bent portion of the metal engaging portion and the protruding piece sandwich the bent base portion of the resin engaging portion and are caulked and fixed. The fitting according to claim 1, characterized by the above.

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