JP7780977B2 - Building materials - Google Patents

Description

The present invention relates to building materials that use composite frames made of metal frames and synthetic resin frames.

Conventionally, building fixtures have been known that use composite frames, combining metal frame materials made from aluminum extrusions with resin frame materials made from resin extrusions, for the upper, lower, and left and right vertical frames (see, for example, Patent Document 1). The composite frame materials included in these building fixtures have the attachment pieces of the resin frame material attached to the resin frame attachment pieces of the metal frame material with screws.

JP 2021-1470 A

The composite frame materials used for the top, bottom, and left and right vertical frames of the above-mentioned conventional building fixtures are formed by screwing together resin frame materials and metal frame materials. Because each composite frame material must be screwed together individually, manufacturing is cumbersome and costly. To facilitate the manufacturing of composite frame materials, it is possible, for example, to attach resin frame materials to metal frame materials by engaging them. However, simply engaging resin frame materials with metal frame materials poses the problem of potential infiltration of rainwater and other contaminants through gaps that form at the engagement points between the resin and metal frame materials.

The present invention was made in light of these issues, and its purpose is to provide building materials using composite frame materials that are easy to manufacture and have excellent water-tight properties.

The main invention for achieving this purpose is a fixture having a frame body framed by a composite frame material having a metal frame material made of metal and a resin frame material made of synthetic resin adjacent to each other in the projection direction, wherein the metal frame material has metal engaging pieces on the outdoor side and the indoor side in the projection direction, and the resin frame material has resin engaging pieces on the outdoor side and the indoor side in the projection direction, and the metal engaging pieces on the outdoor side and the resin engaging pieces on the outdoor side, and the metal engaging pieces on the indoor side and the resin engaging pieces on the indoor side all engage in abutting contact with each other in the projection direction, thereby joining the metal frame material and the resin frame material.
Other features of the present invention will become apparent from the description of this specification and the accompanying drawings.

This invention makes it possible to provide building materials using composite frame materials that are easy to manufacture and have excellent water-tight properties.

FIG. 2 is a cross-sectional view of the fitting according to the present embodiment. FIG. 2 is a diagram showing the metal frame material and resin frame material that make up the vertical frame. FIG. 2 is an enlarged view of part A in FIG. 1. FIG. 4 is a diagram showing a modification of part B in FIG. 3 .

Hereinafter, a fitting according to one embodiment of the present invention will be described with reference to the drawings.
As an example of a fitting 1 according to this embodiment, as shown in Figure 1, we will explain the fitting 1 having a frame body 2 fixed to the building's framework and forming an opening 1b, and a door 3 serving as a shoji screen attached to the frame body 2 via a hinge 1a so that it can be opened and closed freely.

As shown in Figure 1, in the fitting 1 of this embodiment, the door 3 is attached via hinge 1a to the left-hand vertical frame 20 that constitutes the frame 2 so that it can be opened and closed freely. In the following explanation, when the fitting 1 attached to a building or the like is viewed from the indoor side, the up-down direction is referred to as the up-down direction, the left-right direction is referred to as the left-right direction, and the depth direction, which is the direction from indoors to outdoors, is referred to as the front direction. In addition, in the front direction, the side to which the door 3 moves when opening is referred to as the outdoor side, and the opposite side, where a door stop is provided, is referred to as the indoor side. Furthermore, the side of the opening 1b on the inside of the frame 2 is referred to as the inner periphery side, and the outside of the frame 2 opposite the opening 1b is referred to as the outer periphery side.

The vertical frame 20 is a composite frame material formed by engaging and joining a metal frame material 21 made of metal and positioned on the outdoor side in the projection direction, and a synthetic resin frame material 22, positioned on the indoor side in the projection direction. Furthermore, both the metal frame material 21 and the resin frame material 22 are extruded shapes whose extrusion direction is in the vertical direction (longitudinal direction).

The metal frame material 21 has a generally rectangular cross section elongated in the projection direction and a hollow metal frame portion 21a that penetrates vertically. The metal frame material 21 defines the hollow metal frame portion 21a and includes an inner projection wall portion 21b that forms a projection surface on the inner side, which is the side of the opening 1b formed by the frame body 2; an outer projection wall portion 21c that faces the inner projection wall portion 21b on the outer side and is spaced left and right from the inner projection wall portion 21b; an outdoor sighting surface portion 21d that connects the outdoor end of the inner projection wall portion 21b to the outer projection wall portion 21c and forms a sighting surface; an indoor sighting surface portion 21e that connects the indoor end of the inner projection wall portion 21b to the outer projection wall portion 21c and forms a sighting surface; and a fixing piece 21f that protrudes outward from the outer projection wall portion 21c and is fastened to the frame with a screw.

The inner peripheral projection wall 21b has an outdoor portion 21g on the outdoor side and an indoor portion 21h on the indoor side, with the indoor portion 21h located closer to the outer periphery than the outdoor portion 21g, providing a step. A door 3 is attached to the outdoor portion 21g of the inner peripheral projection wall 21b via a hinge 1a so that it can be opened and closed freely. Here, the inner peripheral projection wall 21b corresponds to the projection wall on which the shoji screen is supported so that it can be opened and closed freely, and the outdoor side projection surface 21i and indoor side projection surface 21j facing the opening 1b correspond to the projection surfaces of the projection wall on which the shoji screen is supported so that it can be opened and closed freely.

The indoor visible surface portion 21e extends from the indoor-side end of the indoor-side portion 21h toward the outer periphery, and a recess 21k recessed toward the outdoor side is provided at the end where the extended outer periphery end connects to the outer periphery visible wall portion 21c.

A first metal engagement piece 21l is provided near the inner edge of the indoor sighting surface 21e, extending indoors with its end extending inward to engage with the resin frame material 22. Also, a protruding piece 21m is provided on the inner edge of the indoor sighting surface 21e, protruding further inward than the indoor side portion 21h, and extending along the indoor sighting surface 21e.

The tip of the protruding piece 21m protrudes by the difference in level between the outdoor-side visible surface 21i facing the opening 1b of the outdoor-side portion 21g and the indoor-side visible surface 21j facing the opening 1b of the indoor-side portion 21h.

The outer peripheral projection wall portion 21c extends further outdoors than the outdoor sight-seeing surface portion 21d and further indoors than the indoor sight-seeing surface portion 21e.
An indoor-side extension piece 21n extending inward is provided at the indoor-side end of the outer peripheral projection wall portion 21c, and a second metal engaging piece 21o that engages with the resin frame material 22 is provided on the outdoor side of the indoor-side extension piece 21n. The second metal engaging piece 21o is provided so as to face the outdoor side of the indoor-side extension piece 21n with a slight gap between them.

A hook piece 21p that protrudes indoors is provided at the inner peripheral end of the second metal engagement piece 21o. Here, the first metal engagement piece 21l corresponds to the metal engagement piece provided on the outdoor side of the metal frame material 21, and the second metal engagement piece 21o corresponds to the resin engagement piece provided on the indoor side of the metal frame material 21. Furthermore, the indoor extension piece 21n corresponds to the facing piece that faces the metal engagement piece (second metal engagement piece 21o) with a gap in the forward direction.

The resin frame material 22 has a generally rectangular cross section that is elongated in the left-right direction and a resin frame hollow portion 22a that penetrates in the up-down direction. The resin frame material 22 forms the resin frame hollow portion 22a and has a resin front wall portion 22b that forms a front surface on the outer periphery of the frame body 2, a sealant fitting portion 22c into which the sealant 4 provided on the outdoor side of the resin frame hollow portion 22a is fitted, and a first resin engaging piece 22d that is connected to the sealant fitting portion 22c at a front surface 22m, extends outward, and engages with the first metal engaging piece 21l.

The resin recessed wall portion 22b has a resin fixing piece 22e that extends indoors and is screwed to the frame. The resin fixing piece 22e forms a resin frame hollow portion 22a, and is provided with a second resin engaging piece 22g that protrudes outward from the indoor wall portion 22f facing the indoors and engages with the second metal engaging piece 21m.

The second resin engaging piece 22g has a tip sighting surface 22h on the outer circumferential side, which is the tip side, that forms a sighting surface located outside of the inner circumferential portion. Here, the first resin engaging piece 22d corresponds to the resin engaging piece provided on the outside side of the resin frame material 22, and the second resin engaging piece 22g corresponds to the resin engaging piece provided on the inside side of the resin frame material 22.
The outdoor end of the resin projection wall portion 22b extends outward, and the extended end has a resin extension piece 22i that extends outward.

As shown in Figure 3, the vertical frame 20 is joined to the metal frame material 21 by the first resin engagement piece 22d of the resin frame material 22 engaging with the first metal engagement piece 21l of the metal frame material 21, and the second resin engagement piece 22g of the resin frame material 22 engaging with the second metal engagement piece 21o of the metal frame material 21. The resin frame material 22 joined to the metal frame material 21 protrudes inward beyond the outdoor-side visible surface 21i and the indoor-side visible surface 21j that face the opening 1b of the outdoor-side portion 21g and the indoor-side portion 21h. A sealant 4 is provided on the outdoor side of the protruding protrusion 22l, and the protrusion 22l, together with the sealant 4, forms the door stop for the door 3.

When the resin frame material 22 and the metal frame material 21 are joined, the indoor surface 22j of the first resin engagement piece 22d abuts and engages with the outdoor surface 21q of the first metal engagement piece 21l on the outdoor side, and the outdoor surface 22k of the second resin engagement piece 22g abuts and engages with the indoor surface 21r of the second metal engagement piece 21o on the indoor side, joining the metal frame material 21 and the resin frame material 22. Furthermore, the resin extension piece 22i of the resin frame material 22 abuts against the outer peripheral visible wall portion 21c of the metal frame material 21, with its tip inserted into the recess 21k. The tip visible surface portion 22h of the second resin engagement piece 22g is positioned on the outer peripheral side of the hook piece 21p of the metal frame material 21, thereby restricting relative movement between the metal frame material 21 and the resin frame material 22 in the left-right direction.

Furthermore, when the resin frame material 22 and the metal frame material 21 are joined, the protruding piece 21m of the metal frame material 21 faces the outdoor-facing visible surface 22m of the protruding portion 22l and protrudes toward the sealing material 4 fitted to the protruding portion 22l.

In the fitting 1 of this embodiment, the frame 2 of the fitting 1 is made of a composite frame material and is joined by engaging the first metal engaging piece 21l with the first resin engaging piece 22d, and by engaging the second metal engaging piece 21o with the second resin engaging piece 22g. This makes it easier to manufacture than joining using screws, etc., and reduces manufacturing time and costs.

Furthermore, on the outdoor side of the metal frame material 21 and the resin frame material 22 in the projection direction, the indoor surface 22j of the first resin engagement piece 22d abuts against the outdoor surface 21q of the first metal engagement piece 21l, and on the indoor side, the outdoor surface 22k of the second resin engagement piece 22g abuts against the indoor surface 21r of the second metal engagement piece 21o. In other words, the first and second metal engagement pieces 21l, 21o are sandwiched between the first and second resin engagement pieces 22d, 22g. As a result, no gaps are formed between the first resin engaging piece 22d and the first metal engaging piece 21l, and between the second resin engaging piece 22g and the second metal engaging piece 21o, on either the outdoor or indoor sides in the projection direction. This makes it difficult for rainwater to seep in through the areas where the first resin engaging piece 22d and the first metal engaging piece 21l, and the second resin engaging piece 22g and the second metal engaging piece 21o, are engaged. This makes it possible to provide a fitting 1 using a vertical frame 20 that is easy to manufacture and has excellent water-tight properties.

In addition, the metal frame material 21 has a protruding piece 21m that protrudes toward the inner periphery of the frame body 2 along the protruding portion 22l on the outdoor side of the protruding portion 22l that protrudes inward from the inner periphery side projecting wall portion 21b of the metal frame material 21 in the resin frame material 22.Therefore, rainwater and the like that enters between the door 3 and the metal frame material 21 is blocked by the protruding piece 21m and is unlikely to enter directly into the protruding portion 22l. Furthermore, the protruding piece 21m is located along the protruding portion 22l, further inward than the inner peripheral projection wall portion 21b, which is located on the inner peripheral side of the first and second metal engaging pieces 21l, 21o and the first and second resin engaging pieces 22d, 22g. Therefore, even if rainwater or the like seeps in between the door 3 and the metal frame 21, it is prevented from passing between the protruding portion 22l and the protruding piece 21m and entering the first and second metal engaging pieces 21l, 21o and the first and second resin engaging pieces 22d, 22g. This makes it possible to provide a fitting 1 with even better water-tightness.

In the above embodiment, an example was described in which the first resin engaging piece 22d and the first metal engaging piece 21l, and the second resin engaging piece 22g and the second metal engaging piece 21o abut and engage in the forward direction. However, as shown in Figure 4, for example, the second resin engaging piece 22g and the second metal engaging piece 21o may be engaged, and the indoor extension piece 21n of the metal frame material 21 may be bent toward the second metal engaging piece 21o by crimping, etc., so that the second resin engaging piece 22g is sandwiched between the second metal engaging piece 21o and the indoor extension piece 21n. In this case, the second resin engaging piece 22g and the second metal engaging piece 21o abut more securely, eliminating gaps and making it possible to provide a fitting 1 with superior watertight properties.

In this case, even if the resin frame material 22 expands or contracts due to temperature changes, the second resin engagement piece 22g remains sandwiched between the second metal engagement piece 21o and the indoor extension piece 21n, preventing a gap from forming between the second resin engagement piece 22g and the second metal engagement piece 21o.

In the above embodiment, the left vertical frame 20 has been described as an example, but the right vertical frame 20 is similar.
Furthermore, in the above embodiment, an example was described in which the first and second metal engaging pieces 21l, 21o are clamped between the first and second resin engaging pieces 22d, 22g, but this is not limited to this, and the configuration may also be such that the first and second resin engaging pieces are clamped between the first and second metal engaging pieces.

The above-described embodiments are provided to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention includes equivalents thereof.
The present embodiment includes at least the following inventions.

A fixture having a frame body framed by a composite frame material having metal frame materials made of metal and resin frame materials made of synthetic resin adjacent to each other in the projection direction, wherein the metal frame materials have metal engaging pieces on both the outdoor and indoor sides in the projection direction, and the resin frame materials have resin engaging pieces on both the outdoor and indoor sides in the projection direction, with the outdoor-side metal engaging pieces and the outdoor-side resin engaging pieces, and the indoor-side metal engaging pieces and the indoor-side resin engaging pieces all abutting and engaging with each other in the projection direction, joining the metal frame material and the resin frame material.

With this type of fixture, the composite frame material used for the fixture's frame is joined by engaging metal engaging pieces and resin engaging pieces, making it easier to manufacture than when joined with screws, etc., and reducing manufacturing time and costs.

In addition, the metal frame material and the resin frame material are engaged with the outdoor-side metal engaging piece and the outdoor-side resin engaging piece abutting each other in the projection direction, and the indoor-side metal engaging piece and the indoor-side resin engaging piece abutting each other in the projection direction. As a result, the outdoor-side and indoor-side engaging portions joining the metal frame material and the resin frame material abut each other, leaving no gaps, making it difficult for rainwater and other elements to seep in through the areas where the resin engaging piece and the metal engaging piece engage. This makes it possible to provide building materials using composite frame material that are easy to manufacture and have excellent water-tight properties.

Furthermore, this is a fixture having a frame body framed by a composite frame material having a metal frame material made of metal and a resin frame material made of synthetic resin adjacent in the projection direction, wherein the metal frame material has a metal engaging piece and a facing piece facing the metal engaging piece with a gap in the projection direction, the resin frame material has a resin engaging piece located between the metal engaging piece and the facing piece and engaging with the metal engaging piece, and the facing piece is bent to sandwich the resin engaging piece together with the metal engaging piece.

With this type of fitting, the composite frame material used for the fitting's frame has a metal engaging piece and a resin engaging piece engaged together, and the bent opposing piece is joined by sandwiching the resin engaging piece together with the metal engaging piece, making it easier to manufacture than when joined with screws or the like.

In addition, the resin engaging piece, which is positioned between the metal engaging piece and the facing piece and engages with it, is sandwiched between the bent facing piece and the metal engaging piece, allowing the resin engaging piece and the metal engaging piece to abut more reliably. Even if the resin frame material deforms due to temperature changes, the resin engaging piece and the metal engaging piece will remain in abutting contact. This makes it possible to provide fittings with even better watertightness.

In this type of fitting, the metal frame material has a recessed wall portion with a recessed surface on which a shoji screen is supported so that it can be opened and closed freely, the resin frame material has a protruding portion that protrudes further toward the inner periphery of the frame body than the recessed wall portion and forms a door stop for the shoji screen, the metal engaging piece and the resin engaging piece are located further toward the outer periphery of the frame body than the recessed wall portion, and the metal frame material has a protruding piece on the outdoor side of the protruding portion that protrudes toward the inner periphery of the frame body along the protruding portion.

With this type of fitting, the metal frame has a protruding piece that protrudes inward along the protruding portion on the outdoor side of the protruding portion that protrudes inward from the projected wall portion of the metal frame. Therefore, rainwater and other water that seeps in between the shoji screen and the metal frame is blocked by the protruding piece and is less likely to enter the protruding portion directly. Furthermore, since the protruding piece is located along the protruding portion further inward than the projected wall portion located on the inner side of the metal engaging piece and resin engaging piece, even if rainwater and other water seeps in between the shoji screen and the metal frame, it is prevented from passing between the protruding portion and the protruding piece and entering the metal engaging piece and resin engaging piece. This makes it possible to provide fittings with even better water-tightness.

1. Building materials, 2. Frame, 3. Door, 4. Sealing material, 20. Vertical frame,
21 metal frame material, 21b inner peripheral side prospective wall portion, 21i outdoor side prospective surface,
21j: indoor side visible surface, 21l: first metal engagement piece, 21m: protruding piece,
21n indoor side extension piece, 21o second resin engagement piece, 22 resin frame material,
22d first resin engaging piece, 22g second resin engaging piece,

Claims (4)

A fitting having a frame body framed by a composite frame material having a metal frame material made of metal and a resin frame material made of synthetic resin adjacent in the prospective direction,
The metal frame material has metal engaging pieces on the outdoor side and the indoor side in the projection direction,
The resin frame material has resin engaging pieces on the outdoor side and the indoor side in the projection direction,
The metal engaging piece on the outdoor side and the resin engaging piece on the outdoor side, and the metal engaging piece on the indoor side and the resin engaging piece on the indoor side are engaged in a state of abutting each other in the projection direction, and the metal frame material and the resin frame material are joined together,
When the abutment surface between the outdoor-side metal engaging piece and the outdoor-side resin engaging piece is defined as a first abutment surface,
A fixture characterized in that the metal engaging piece on the outdoor side is located on the indoor side in the expected direction relative to the first abutment surface, and the resin engaging piece on the outdoor side is located on the outdoor side in the expected direction . The fitting according to claim 1,
When the abutment surface between the indoor-side metal engagement piece and the indoor-side resin engagement piece is defined as a second abutment surface,
A fixture characterized in that the metal engagement piece on the indoor side is located on the outdoor side in the expected direction relative to the second abutment surface, and the resin engagement piece on the indoor side is located on the indoor side in the expected direction. The fitting according to claim 1 or claim 2,
The metal frame material has a facing piece that faces the metal engagement piece with a gap in the projection direction,
the resin engaging piece is positioned between the metal engaging piece and the facing piece and engages with the metal engaging piece;
The facing piece is bent to sandwich the resin engaging piece together with the metal engaging piece. A fitting having a frame body framed by a composite frame material having a metal frame material made of metal and a resin frame material made of synthetic resin adjacent in the prospective direction,
The metal frame material has metal engaging pieces on the outdoor side and the indoor side in the projection direction,
The resin frame material has resin engaging pieces on the outdoor side and the indoor side in the projection direction,
The outdoor-side metal engaging piece and the outdoor-side resin engaging piece, and the indoor-side metal engaging piece and the indoor-side resin engaging piece are both engaged in abutting contact with each other in the projection direction, and the metal frame material and the resin frame material are joined together,
The metal frame material has a recessed wall portion having a recessed surface on which the shoji screen is supported so as to be able to be opened and closed freely,
The resin frame material has a protruding portion that protrudes toward the inner periphery of the frame body more than the projecting wall portion and forms a door stop portion of the shoji screen,
the metal engaging piece and the resin engaging piece are provided on the outer circumferential side of the frame body relative to the projecting wall portion,
The metal frame material is a fixture characterized in that it has a protruding piece on the outdoor side of the protruding portion that protrudes toward the inner periphery of the frame body along the protruding portion.