JP7664808B2 - Composite fittings - Google Patents

Description

This disclosure relates to composite building materials.

Resin composite sashes (composite fittings) that have metal and resin components are known (see, for example, Patent Document 1). In resin composite sashes, the resin components shrink due to the effects of temperature, solar radiation, etc., so measures must be taken to deal with this.

JP 2016-79722 A

Since resin components shrink due to the effects of temperature, solar radiation, etc., gaps may appear between the end caps on the end faces of the components and the components themselves. In some cases, a cover is provided on the end caps to hide the gaps, but in either case, the design is compromised.

The purpose of this disclosure is to provide a composite fixture with excellent design.

The present disclosure relates to a composite fixture comprising a long metal member, a long resin member arranged along the longitudinal direction of the metal member, end caps arranged at the longitudinal ends of the metal member and the resin member, and a pressing member that presses the end cap against the resin member so as to shrink the resin member, which is formed to be longer than the longitudinal length of the metal member, in the longitudinal direction.

FIG. 2 is a perspective view of a fixture according to an embodiment as viewed from the inside of a room. 2 is a cross-sectional view taken along line AA in FIG. 1. This is a perspective view of a post. This is an exploded perspective view of the post. 4 is a cross-sectional view taken along line BB in FIG. 3. This figure shows the state before the post is manufactured, in which the length of the outer resin member is longer than the length of the interior side metal member of the inner member. This is a diagram showing the manufacturing procedure for the upholstery, and shows the case where the upper cap is fixed after the lower end cap has been fixed. FIG. 13 is a diagram showing the steps for making a mullion, showing the state in which the lower end cap and the upper end cap are fixed. This is an oblique view of the vertical frame of the outer screen. This is an exploded oblique view of the vertical frame of the outer screen. 10 is a cross-sectional view taken along line CC of FIG. 9. This is a diagram showing the manufacturing procedure for the vertical frame of an outer screen, and shows the case where the upper end cap is fixed after the lower end cap has been fixed.

The embodiments of the present disclosure will be described in detail below with reference to the drawings. In this specification, the "visible direction" refers to the surface direction of the surface material of the fitting 1 placed in an opening formed in the wall of a building, and the "visible direction" refers to the thickness direction of the surface material (i.e., the depth direction). The "visible direction" is also the indoor/outdoor direction. The "visible surface" refers to each surface of the fitting 1 facing the outdoor side and the indoor side X2, and the "visible surface" refers to the surface of the fitting 1 extending in the indoor/outdoor direction. In the drawings, the outdoor side of the fitting 1 is the outdoor side X1, and the indoor side of the fitting 1 is the indoor side X2. The "horizontal direction" of the outer shoji screen 5 is also referred to as the left-right direction.

As shown in FIG. 1, the fixture 1 (composite fixture) comprises a frame 2 attached to an opening in a building frame (not shown), a post 3 arranged within the frame 2, a FIX part 4 arranged on the inside X2 of the frame 2 on one side of the post 3, an outer screen 5 arranged on the outside X1 of the frame 2 so as to be movable in the left-right direction, and a pleated screen 6 (retractable screen) arranged on the inside X2 of the frame 2 so as to be retractable on the other side of the post 3 in the left-right direction.

The frame body 2 is constructed by framing an upper frame 21, a lower frame 22, and a pair of left and right vertical frames 23, 24 in a rectangular shape.

As shown in Figure 1, the upright 3 is arranged to extend vertically at a midpoint in the left-right direction on the indoor side X2 of the frame body 2. The opening of the frame body 2 is divided into left and right parts midway in the left-right direction by the upright 3. As a result, on the indoor side X2 of the frame body 2, a fixed section 4 is formed on one side in the left-right direction of the frame body 2, and an opening 25 that is opened and closed by an outer screen 5 is formed on the other side in the left-right direction of the frame body 2. The structure of the upright 3 (composite member) will be described in detail later.

The fixed section 4 is configured by fixing a glass panel 41 as a surface material to the upright 3 and the frame body 2 on one side in the left-right direction (the right side in FIG. 1) of the upright 3 in the frame body 2. The fixed section 4 is a fixed window that cannot be opened or closed.

As shown in FIG. 2, the outer shoji screen 5 is a shoji screen that can be opened and closed by sliding left and right (horizontally) within the frame body 2 on the outside side X1 of the frame body 2.

As shown in Figures 1 and 2, the outer shoji screen 5 is constructed by fitting a panel 55 made of two pieces of glass onto the inner circumference of a rectangular frame body 50 made up of an upper frame (not shown), a lower frame 52, a vertical frame 7 located at the door end, and a vertical frame 54 located at the door tail.

As shown in Figures 1 and 2, a handle 701 is attached to the vertical frame 7 located on the door end side. The handle 701 is attached to the inner peripheral surface of the vertical frame 7 in the left-right direction, on the room side X2 of the panel material 55 of the outer sash 5. The structure of the vertical frame 7 (composite member) located on the door end side will be described in detail later.

Next, the structure of the mullion 3 will be described in detail. The mullion 3 is an aluminum-resin composite member for the door and window 1. As shown in Figures 2 to 5, the mullion 3 comprises a long outer resin member 31 (resin member) extending in the vertical direction, a long inner member 32 extending in the vertical direction, an upper end airtight member 33, an upper end cap 34 (end cap), an upper end cap fixing plate 35 (plate), a lower end airtight member 36, a lower end cap 37 (end cap), and a lower end cap fixing plate 38 (plate).

2, the outer resin member 31 has a first vertical plate 311 extending in the indoor/outdoor direction, a second vertical plate 312 extending a predetermined length from the end of the first vertical plate 311 on the indoor side X2 toward the vertical frame 24, and a third vertical plate 313 extending a predetermined length from the end of the second vertical plate 312 on the vertical frame 24 side toward the outdoor side X1. The outer resin member 31 is made of a resin material.

The inner member 32 is arranged along the longitudinal direction of the outer resin member 31. The inner member 32 has a long outdoor metal member 321 and a long indoor metal member 322 (metal member) made of metal such as aluminum, and a bridge member 323 (connecting member) which is a resin insulating material. The outdoor metal member 321 and the indoor metal member 322 are connected by the bridge member 323. The indoor metal member 322 has an outdoor hollow frame 322a formed on the outdoor side X1 and an indoor hollow frame 322b formed on the indoor side X2.

The fixing structure on the upper end side of the upright 3 will be described. As shown in Figures 3 and 4, the upper end airtight member 33 is fixed by the upper end airtight member fixing screw 33a to the outdoor side X1 part of the upper end of the part of the upright 3 where the outer resin member 31 and the inner member 32 are combined.

The upper end cap 34 and the upper end cap fixing plate 35 are fixed to the lower step formed in a stepped shape on the interior side X2 of the upper end of the part where the outer resin member 31 and the inner member 32 of the upright 3 are combined, by the upper metal part fixing screw 34a (pressing member, metal member side fastening screw) and the upper resin part fixing screw 34b (resin member side fastening screw).

The upper end cap 34 is disposed at the longitudinal ends of the outer resin member 31 and the inner member 32. The upper end cap 34 is disposed on the indoor side X2 of the upper end of the combined portion of the outer resin member 31 and the inner member 32 so as to cover the indoor side X2 part of the upper end of the outer resin member 31 and the upper end of the indoor side hollow frame 322b of the indoor side metal member 322 of the inner member 32 disposed along the inner surface of the outer resin member 31. When the upper end cap 34 is attached to the end surface of the longitudinal ends of the outer resin member 31 and the inner member 32, it does not have a covering margin with the outer resin member 31. As a result, the upper end cap 34 is attached to the end surface of the outer resin member 31 in a state where the outer edge of the upper end cap 34 does not protrude from the outer edge of the outer resin member 31.

As shown in FIG. 4, the upper end cap 34 has a horizontal plate portion 341 having a recess 341a, and a protruding wall 342 that protrudes upward from the end of the horizontal plate portion 341 on the outdoor side X1. The recess 341a is formed on the upper surface of the horizontal plate portion 341. The upper end cap fixing plate 35 is disposed in the recess 341a. The upper end cap fixing plate 35 is disposed on the upper surface of the upper end cap 34 opposite the resin outer resin member 31.

As shown in FIG. 5, the head of the upper metal part fixing screw 34a is placed on the upper surface of the upper end cap fixing plate 35, the shaft is arranged to penetrate the upper end cap fixing plate 35 and the upper end cap 34 in the vertical direction, and the tip side is fastened to the screw fastening part 322c of the indoor side metal member 322 of the inner member 32.

The upper metal part fixing screw 34a is screwed into the screw fastening portion 322c of the indoor metal member 322 of the inner member 32 at its tip end and fastened, thereby pressing the upper end cap fixing plate 35 towards the upper end cap 34. The upper metal part fixing screw 34a then presses the upper end cap fixing plate 35 towards the upper end cap 34, thereby pressing the upper end cap fixing plate 35 and the upper end cap 34 against the resin outer resin member 31.

As a result, the upper metal part fixing screw 34a presses the upper end cap 34 against the outer resin member 31 so as to shrink the resin outer resin member 31, which is formed longer than the longitudinal length of the indoor side metal member 322 of the inner member 32, in the longitudinal direction, taking into account the shrinkage of the outer resin member 31 (resin member). The upper metal part fixing screw 34a fixes the upper end cap 34 to the indoor side metal member 322 of the inner member 32 while pressing the upper end cap 34 against the resin outer resin member 31.

In this embodiment, as shown in Figure 6, before the upright 3 is manufactured, the vertical length L11 of the resin outer resin member 31 is made longer than the length L12 of the indoor side metal member 322 of the inner member 32 (L11 > L12). Then, after the upright 3 is manufactured, as shown in Figure 8, the resin outer resin member 31 is bent so as to be contracted in the longitudinal direction so that the longitudinal length L11 becomes the same length as the length L12 of the indoor side metal member 322 of the inner member 32 (L11 = L12).

As shown in FIG. 5, the head of the upper resin part fixing screw 34b is disposed on the upper surface of the upper end cap fixing plate 35, the shaft is disposed so as to penetrate the upper end cap fixing plate 35 and the upper end cap 34 in the vertical direction, and the tip side is fastened to the screw fastening portion 312a of the resin outer resin member 31. In this way, the upper resin part fixing screw 34b fixes the upper end cap 34 to the resin outer resin member 31.

The fixing structure on the lower end side of the upright 3 is the same structure as the fixing structure on the upper end side of the upright 3, but upside down. The "lower end airtight member 36", "lower end cap 37", "lower end cap fixing plate 38", "lower end airtight member fixing screw 36a", "lower metal part fixing screw 37a", and "lower resin part fixing screw 37b" on the lower end side of the upright 3 correspond to the "upper end airtight member 33", "upper end cap 34", "upper end cap fixing plate 35", "upper end airtight member fixing screw 33a", "upper metal part fixing screw 34a", and "upper resin part fixing screw 34b" on the upper end side of the upright 3. Therefore, the explanation of the fixing structure on the lower end side of the upright 3 will be omitted by using the explanation of the fixing structure on the upper end side of the upright 3, but upside down.

Next, the procedure for fixing the upper end cap 34 and the lower end cap 37 to the upright 3 will be described. Before fixing the upper end cap 34 and the lower end cap 37, the upright 3 is formed so that the vertical length L11 of the resin outer resin member 31 is longer than the vertical length L12 of the indoor side metal member 322 of the inner member 32, as shown in FIG. 6 (L11>L12).

First, as shown in FIG. 7, the lower end cap 37 is fixed to the lower end of the upright 3. When fixing the lower end cap 37 to the lower end of the upright 3, the lower end 31b of the resin outer resin member 31 is aligned with the lower end 32b of the indoor side metal member 322 of the inner member 32, and the lower end cap fixing plate 38 and the lower end cap 37 are fixed to the indoor side metal member 322 on the indoor side X2 of the inner member 32 with the lower metal part fixing screw 37a, and are fixed to the resin outer resin member 31 with the lower resin part fixing screw 37b.

Next, the upper end cap 34 is fixed to the upper end of the upright 3. When the upper end cap 34 is fixed to the upper end of the upright 3, since the lower end cap 37 is fixed to the lower end of the upright 3, the upper end 31a of the resin-made outer resin member 31 is located above the upper end 32a of the indoor side metal member 322 of the inner member 32, as shown in FIG. 7.

In this state, the upper end cap fixing plate 35 is placed on the upper surface of the upper end cap 34, and as shown in Figures 5, 7, and 8, the shaft portion of the upper metal part fixing screw 34a is inserted through the upper end cap fixing plate 35 and the upper end cap 34, and the tip side of the upper metal part fixing screw 34a is screwed into the screw fastening portion 322c of the indoor side metal member 322 on the indoor side X2 of the inner member 32 to fasten them. The upper end cap 34 is pressed against the longitudinal end of the outer resin member 31 by the upper metal part fixing screw 34a.

As a result, the length L11 of the resin outer resin member 31 is bent so as to be shortened in the longitudinal direction to the same length as the length L12 of the indoor side metal member 322 of the inner member 32, and as shown in FIG. 8, the upper end 31a of the resin outer resin member 31 and the upper end 32a of the indoor side metal member 322 of the inner member 32 are positioned in the same position. Therefore, the length L11 of the resin outer resin member 31 and the length L12 of the indoor side metal member 322 of the inner member 32 can be made the same length.

Conventionally, in resin composite sashes that have metal and resin components, the resin components shrink due to the effects of temperature, solar radiation, etc., which can lead to gaps between the end caps provided on the end surface of the component and the component. To account for the shrinkage of the resin components, a cover is sometimes provided on the end cap to hide the gap. However, in this case, the end cap protrudes from the component in the visible direction, which is not desirable from a design perspective. For this reason, it is possible to provide end caps that do not have a cover on the end surface of the component. However, in composite components that have resin and metal components, the resin components shrink due to the effects of temperature, solar radiation, etc., which can lead to gaps between the end caps provided on the end surface of the component and the component.

In contrast, in the present disclosure, after the construction of the mullion 3, as shown in FIG. 8, the length L11 of the resin outer resin member 31 is bent so as to be shortened in the longitudinal direction to the same length as the length L12 of the indoor side metal member 322 of the inner member 32 (L11 = L12).

This prevents a gap from being formed between the upper end of the part of the upright 3 where the outer resin member 31 and the inner member 32 are combined and the upper end cap 34, and also prevents a gap from being formed between the lower end of the part of the upright 3 where the outer resin member 31 and the inner member 32 are combined and the lower end cap 37.

Next, as shown in Figures 5, 7, and 8, the shaft of the upper resin part fixing screw 34b is inserted through the upper end cap fixing plate 35 and the upper end cap 34, and the tip side of the upper resin part fixing screw 34b is screwed into the screw fastening portion 312a of the resin outer resin member 31 to fasten it.

As a result, the upper end cap 34 can be fixed to the resin outer resin member 31 by tightening and fastening the upper resin part fixing screw 34b into the screw fastening portion 312a of the resin outer resin member 31, thereby suppressing longitudinal contraction (shrinkage) of the outer resin member 31.

Next, the structure of the vertical frame 7, which is placed on the door end side of the outer shoji screen 5, will be described in detail. The vertical frame 7 is an aluminum-resin composite member for the door fixture 1. As shown in Figures 2 and 9 to 11, the vertical frame 7 comprises a long outdoor metal member 71 (metal member) that extends vertically, a long indoor resin member 72 (resin member) that extends vertically, a first upper anti-sway member 731, a second upper anti-sway member 732, an upper end cap 733 (end cap), an upper end cap back plate member 734, a first lower anti-sway member 741, a second lower anti-sway member 742, a lower end cap 743 (end cap), and a lower end cap back plate member 744.

The outdoor metal member 71 extends in the vertical direction. As shown in FIG. 2, the cross-sectional shape of the outdoor metal member 71 has an outdoor hollow frame 711, an indoor hollow frame 712, and an L-shaped protruding piece 713 that protrudes in an L-shape from the indoor side X2 surface of the indoor hollow frame 712 toward the indoor side X2. The outdoor metal member 71 is made of metal.

The indoor resin member 72 extends in the vertical direction. The indoor resin member 72 is arranged along the longitudinal direction of the outdoor metal member 71. As shown in FIG. 2, the cross-sectional shape of the indoor resin member 72 has a main body hollow frame 721 and a protruding piece 722 that protrudes to the outer periphery of the main body hollow frame 721. The L-shaped protruding piece 713 of the outdoor metal member 71 is arranged along the surface of the main body hollow frame 721 facing the vertical frame 23 and the outdoor exterior X1 surface of the protruding piece 722.

The fixing structure on the upper end side of the vertical frame 7 will be described. As shown in Figures 9 and 10, a first upper anti-sway member 731 and a second upper anti-sway member 732 are attached to the outdoor side X1 part of the upper end of the part of the vertical frame 7 where the outdoor side metal member 71 and the indoor side resin member 72 are combined.

An upper end cap 733 is placed on the lower step (the upper end of the L-shaped protruding piece 713 of the outdoor metal member 71 and the upper end of the indoor resin member 72) formed in a stepped shape on the indoor side X2 of the upper end of the part where the outdoor metal member 71 and the indoor resin member 72 are combined in the vertical frame 7.

The upper end cap 733 is positioned at the upper longitudinal end of the outdoor metal member 71 and the indoor resin member 72. The upper end cap 733 is positioned so as to cover the indoor side X2 portion of the upper end of the portion where the outdoor metal member 71 and the indoor resin member 72 are combined. The upper end cap 733 has no covering margin when attached to the end surface of the upper longitudinal end of the outdoor metal member 71 and the indoor resin member 72. As a result, the upper end cap 733 is attached to the end surface of the indoor resin member 72 without the outer edge of the upper end cap 733 protruding beyond the outer edge of the indoor resin member 72.

The upper end cap 733 has a horizontal plate portion 733a, a protruding wall 733b that protrudes upward from the end of the horizontal plate portion 733a on the outdoor side X1, and a downward convex portion 733c that protrudes downward from the underside of the horizontal plate portion 733a.

As shown in FIG. 11, upper fixing screws 751 (pressing members, metal member side fastening screws) are arranged to penetrate vertically through the horizontal plate portion 733a and the lower convex portion 733c, and the lower convex portion 733c is fixed to the upper plate 734a of the upper end cap back plate member 734 by the upper fixing screws 751. The lower convex portion 733c is fixed to the L-shaped protruding piece 713 of the outdoor metal member 71 from the side by side fixing screws 752 (resin member side fastening screws) that are inserted horizontally into the L-shaped protruding piece 713 of the outdoor metal member 71 and the lower convex portion 733c.

As shown in FIG. 11, the head of the upper fixing screw 751 is disposed on the bottom surface of the recess recessed from the top surface of the horizontal plate portion 733a, the shaft portion is disposed penetrating the upper end cap 733, and the tip side is fastened to the upper surface plate 734a of the upper end cap back plate member 734.

The upper end cap back plate member 734 has a U-shaped cross section. The upper end cap back plate member 734 has an upper surface plate 734a extending horizontally, a vertical plate 734b extending downward from the end of the upper surface plate 734a on the side of the L-shaped protruding piece 713 in the left-right direction, and a lower surface plate 734c extending horizontally from the lower end of the vertical plate 734b on the opposite side to the L-shaped protruding piece 713 in the left-right direction.

The vertical plate 734b is fixed to the L-shaped protruding piece 713 of the exterior metal member 71 by the back plate fixing screws 753, 754. The top plate 734a is fixed by tightening the upper fixing screw 751 that penetrates the upper end cap 733 located on the lower step formed in a step on the interior side X2 of the upper end of the part where the exterior metal member 71 and the interior resin member 72 of the vertical frame 7 are combined.

The upper fixing screw 751 is screwed into the upper plate 734a of the upper end cap back plate member 734 and fastened to press the upper end cap 733 against the interior side resin member 72.

As a result, the upper fixing screw 751 presses the upper end cap 733 against the indoor resin member 72 so as to shrink the indoor resin member 72, which is formed to be longer than the longitudinal length of the outdoor metal member 71, in the longitudinal direction. The upper fixing screw 751 fixes the upper end cap 733 to the outdoor metal member 71 while pressing the upper end cap 733 against the indoor resin member 72.

In this embodiment, as shown in FIG. 12, before the vertical frame 7 is manufactured, the length L21 of the resin-made indoor resin member 72 is formed to be longer than the length L22 of the L-shaped protruding piece 713 of the outdoor metal member 71 (L21>L22). Then, as shown in FIG. 11, after the upper end cap 733 of the vertical frame 7 is attached, the resin-made indoor resin member 72 is bent so as to be contracted in the longitudinal direction so that the longitudinal length L21 becomes the same length as the length L22 of the L-shaped protruding piece 713 of the outdoor metal member 71 (L21=L22).

As shown in FIG. 11, the head of the side fixing screw 752 is disposed on the outer surface of the L-shaped protruding piece 713 of the exterior metal member 71, the shaft is disposed so as to penetrate horizontally in the left-right direction through the L-shaped protruding piece 713 of the exterior metal member 71, and the tip side is fastened to the downward convex portion 733c of the upper end cap 733. The side fixing screw 752 fixes the upper end cap 733 to the L-shaped protruding piece 713 of the exterior metal member 71.

The fixing structure on the lower end side of the vertical frame 7 is the same structure as the fixing structure on the upper side of the vertical frame 7, but upside down. The "first lower anti-sway member 741", "second lower anti-sway member 742", "lower end cap 743", "lower end cap back plate member 744", "lower fixing screw 761", "side fixing screw 762", and "back plate fixing screws 763, 764" on the lower end side of the vertical frame 7 correspond to the "first upper anti-sway member 731", "second upper anti-sway member 732", "upper end cap 733", "upper end cap back plate member 734", "upper fixing screw 751", "side fixing screw 752", and "back plate fixing screws 753, 754" on the upper end side of the vertical frame 7. Therefore, the explanation of the fixing structure on the lower end side of the vertical frame 7 will be omitted by using the explanation of the fixing structure on the upper end side of the vertical frame 7 with the upside down.

Next, the procedure for fixing the upper end cap 733 and the lower end cap 743 to the vertical frame 7 will be described. Before fabrication of the vertical frame 7, as shown in FIG. 12, the length L21 of the resin-made indoor resin member 72 is longer than the length L22 of the L-shaped protruding piece 713 of the outdoor metal member 71 (L21>L22).

As shown in Figure 12, similar to the manufacturing procedure for the mullion 3, the lower end cap 743 is fixed to the lower end of the vertical frame 7, and then the upper end cap 733 is fixed to the upper end of the vertical frame 7.

When fixing the lower end cap 743 to the lower end of the vertical frame 7, the lower end 72b of the resin indoor resin member 72 and the lower end 71b of the L-shaped protruding piece 713 of the outdoor metal member 71 are aligned, and the lower end cap 743 is fixed to the lower end cap back plate member 744 with the lower fixing screw 761, and the lower end cap 743 is fixed to the L-shaped protruding piece 713 of the outdoor metal member 71 with the side fixing screw 762.

Next, the upper end cap 733 is fixed to the upper end of the vertical frame 7. When the upper end cap 733 is fixed to the upper end of the vertical frame 7, the lower end cap 743 is fixed to the lower end of the vertical frame 7, so that the upper end 72a of the resin-made indoor resin member 72 is located above the upper end 71a of the L-shaped protruding piece 713 of the outdoor metal member 71, as shown in FIG. 12.

In this state, as shown in Figures 11 and 12, the shaft of the upper fixing screw 751 is inserted through the upper end cap 733, and the tip of the upper fixing screw 751 is tightened and fastened to the upper plate 734a of the upper end cap back plate member 734 so as to fix the upper end cap 733 to the upper plate 734a of the upper end cap back plate member 734. The upper fixing screw 751 presses the upper end cap 733 against the longitudinal end of the interior resin member 72.

As a result, the length L21 of the resin indoor resin member 72 is bent so as to be shortened in the longitudinal direction to the same length as the length L22 of the L-shaped protruding piece 713 of the outdoor metal member 71, so that the upper end 72a of the resin indoor resin member 72 and the upper end 71a of the L-shaped protruding piece 713 of the outdoor metal member 71 are positioned in the same position, as shown in FIG. 11. Therefore, the length L21 of the resin indoor resin member 72 and the length L22 of the L-shaped protruding piece 713 of the outdoor metal member 71 can be made the same length.

This prevents a gap from being formed between the upper end of the part of the vertical frame 7 where the indoor resin member 72 and the L-shaped protruding piece 713 of the outdoor metal member 71 are combined and the upper end cap 733, and also prevents a gap from being formed between the lower end of the part of the vertical frame 7 where the indoor resin member 72 and the L-shaped protruding piece 713 of the outdoor metal member 71 are combined and the lower end cap 743.

Next, the shaft of the side fixing screw 752 is inserted through the L-shaped protruding piece 713 of the exterior metal member 71, and the tip of the side fixing screw 752 is tightened into the lower protruding portion 733c of the upper end cap 733 to fasten it.

This allows the L-shaped protruding piece 713 of the exterior metal member 71 to be fixed to the lower convex portion 733c of the upper end cap 733 by the side fixing screw 752, thereby suppressing longitudinal contraction (shrinkage) of the interior resin member 72.

According to this embodiment, the following effects are achieved. The mullion 3 of this embodiment includes a long indoor metal member 322, a long outer resin member 31 arranged along the longitudinal direction of the indoor metal member 322, end caps (upper end cap 34, lower end cap 37), and metal member side fastening screws (upper metal part fixing screw 34a, lower metal part fixing screw 37a) that press the end caps (upper end cap 34, lower end cap 37) against the outer resin member 31 so as to shrink the outer resin member 31, which is formed to be longer than the longitudinal length of the indoor metal member 322, in the longitudinal direction.

The metal member side fastening screws (upper metal part fixing screw 34a, lower metal part fixing screw 37a) fix the end caps (upper end cap 34, lower end cap 37) to the indoor side metal member 322 while pressing them against the outer resin member 31. This makes it possible to make the longitudinal length L12 of the indoor side metal member 322 and the longitudinal length L11 of the outer resin member 31 the same length after assembly of the upright 3, with a simple configuration that only requires fixing the metal member side fastening screws (upper metal part fixing screw 34a, lower metal part fixing screw 37a).

As a result, even if the outer resin member 31 shrinks, no gaps are formed between the indoor metal member 322 and the outer resin member 31 and the end caps (upper end cap 34, lower end cap 37), improving the design. In addition, there is no need to provide a cover for the end caps (upper end cap 34, lower end cap 37) to take into account the shrinkage of the outer resin member 31 (resin member).

Furthermore, the upright 3 of this embodiment has resin member side fastening screws (upper resin part fixing screw 34b, lower resin part fixing screw 37b) that fix the end caps (upper end cap 34, lower end cap 37) to the outer resin member 31. This pulls the outer resin member 31 toward the end caps (upper end cap 34, lower end cap 37), so that longitudinal contraction of the outer resin member 31 can be more reliably suppressed.

In addition, in the upright 3 of this embodiment, the metal member side fastening screws (upper metal part fixing screw 34a, lower metal part fixing screw 37a) press the plate (upper end cap fixing plate 35, lower end cap fixing plate 38) against the end cap (upper end cap 34, lower end cap 37) side, thereby pressing the plate (upper end cap fixing plate 35, lower end cap fixing plate 38) and the end cap (upper end cap 34, lower end cap 37) against the outer resin member 31. This allows the entire surface of the plate (upper end cap fixing plate 35, lower end cap fixing plate 38) to be pressed down, allowing for a strong and stable fixation.

The vertical frame 7 of this embodiment also includes a long outdoor metal member 71, a long indoor resin member 72 arranged along the longitudinal direction of the outdoor metal member 71, end caps (upper end cap 733, lower end cap 743), and metal member side fastening screws (upper fixing screw 751, lower fixing screw 761) that press the end caps (upper end cap 733, lower end cap 743) against the indoor resin member 72 so as to shrink the indoor resin member 72, which is formed to be longer than the longitudinal length of the outdoor metal member 71, in the longitudinal direction.

The metal member side fastening screws (upper fixing screw 751, side fixing screw 752) are fixed to the outdoor metal member 71 while pressing the end caps (upper end cap 733, lower end cap 743) against the indoor resin member 72. This makes it possible to make the longitudinal length L22 of the outdoor metal member 71 and the longitudinal length L21 of the indoor resin member 72 the same length after the vertical frame 7 is assembled, with a simple configuration that only requires fixing the metal member side fastening screws (upper fixing screw 751, side fixing screw 752).

As a result, even if the indoor resin member 72 shrinks, no gaps are formed between the outdoor metal member 71 and the indoor resin member 72 and the end caps (upper end cap 733, lower end cap 743), improving the design. In addition, there is no need to provide a cover for the end caps (upper end cap 733, lower end cap 743) to take into account the shrinkage of the indoor resin member 72 (resin member).

Although a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the above-described embodiment and can be modified as appropriate.

In the above embodiment, the end caps are provided at both ends (upper end, lower end) of the aluminum-resin composite member (upright 3, vertical frame 7) in the longitudinal direction, but this is not limited thereto. The end caps may be provided at only one end of the aluminum-resin composite member (upright 3, vertical frame 7) in the longitudinal direction.

1 Door and window (composite door and window), 3 Upright, 7 Vertical frame, 31 Outside resin member (resin member), 34 Top end cap (end cap), 34a Top metal part fixing screw (pressing member, metal member side fastening screw), 34b Top resin part fixing screw (resin member side fastening screw), 35 Top end cap fixing plate (plate), 37 Bottom end cap (end cap), 37a Bottom metal part fixing screw (pressing member, metal member side fastening screw), 37b Bottom resin part fixing screw 37b (resin member side fastening screw), 38 Bottom end cap fixing plate (plate), 71 Outdoor metal part (metal member), 72 Indoor resin part (resin member), 322 Indoor metal part (metal member), 733 Top end cap (end cap), 743 Bottom end cap (end cap), 751 Top fixing screw (pressing member, metal member side fastening screw), 761 Bottom fixing screw (pressing member, metal member side fastening screw)

Claims (5)

A long metal member;
a long resin member disposed along a longitudinal direction of the metal member;
end caps disposed at longitudinal ends of the metal member and the resin member;
A composite fixture comprising: a pressing member that presses the end cap against the resin member so as to shrink the resin member, which is formed to be longer than the longitudinal length of the metal member, in the longitudinal direction. The composite fixture according to claim 1, wherein the pressing member is a metal member side fastening screw that fixes the end cap to the metal member while pressing the end cap against the resin member. The composite fixture for fittings according to claim 1 or 2, which has a resin member side fastening screw for fixing the end cap to the resin member. a plate disposed on the end cap opposite the resin member,
The composite fixture according to any one of claims 1 to 3, wherein the pressing member presses the plate against the end cap, thereby pressing the plate and the end cap against the resin member. The composite fixture according to any one of claims 1 to 4, wherein the end cap has no overhang when attached to the end face of the resin member.

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