JP7704673B2 - Fittings - Google Patents

Description

The present invention relates to a fitting that includes a frame material that constitutes a frame body, a surface material that is provided on the inner periphery of the frame body, and an attachment that is provided between the frame material and the surface material.

Windows installed in buildings may have a surface material such as glass attached to the inner circumference of the frame. Depending on the specifications, attachments may be placed between the frame material and the surface material that make up the frame. As shown in Patent Document 1, attachments are effective in cases such as row windows and stepped windows, where different types of windows need to be installed in combination with a frame material of the same cross section.

Japanese Utility Model Application Publication No. 61-020773

The above attachments are fixed and restrained to the frame material with screws. This increases the number of parts and increases the amount of processing and assembly work required. Also, because the attachments are fixed to the frame material with screws, there is a concern that if the screws come loose, rainwater will leak into the structure through the screw holes. Furthermore, if a fixing method other than screws is used, the strength of the fixation must be guaranteed.

The present invention was made in consideration of the above problems, and aims to provide a fixture that reduces the number of parts and assembly steps while providing sufficient fixing strength.

In order to solve the above-mentioned problems and achieve the object, the fitting according to the present invention comprises a frame material constituting a frame body, a surface material provided on the inner periphery of the frame body, and an attachment provided between the frame material and the surface material, the frame material has a first engaged portion on one side along the projection direction and a second engaged portion on the other side, the attachment has a first engaging portion that engages with the first engaged portion and a second engaging portion that engages with the second engaged portion, the second engaging portion and the second engaged portion are located on the inner periphery side of the first engaging portion and the first engaged portion, the first engaged portion prevents the first engaging portion from moving relative to the one side, and the second engaged portion engages the second engaging portion by a snap fit to prevent it from moving relative to the inner periphery side.

In the fittings of the present invention, the second engaging portion of the attachment engages with the second engaged portion by snap-fitting, eliminating the need for screws and reducing the number of parts and assembly labor. In addition, because the second engaging portion and the second engaged portion are located closer to the inner periphery than the first engaging portion and the first engaged portion, the distance from the center of the panel is reduced, suppressing the moment acting in the direction of the snap-fit coming loose, and providing sufficient fixing strength.

FIG. 1 is an overall view of a fitting according to an embodiment of the present invention, as seen from the inside of a room. 2 is a vertical cross-sectional view taken along the line II-II in FIG. 1 . 3 is a cross-sectional view taken along the line III-III in FIG. 1. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1. An enlarged vertical view of the upper frame, attachment and surface material. An enlarged vertical cross-sectional view of the upper frame, the first engagement portion and the surrounding area. FIG. 4 is an enlarged vertical cross-sectional view of a second engagement portion and its surroundings. 11 is a schematic vertical cross-sectional view showing how the attachment is assembled to the upper frame. FIG. 1 is a schematic vertical cross-sectional view of a state in which an external force F1 acts on a panel material toward the inside of the room. 1 is a schematic vertical cross-sectional view of a state in which an external force F2 acts on the panel toward the outside of the room. FIG. An enlarged cross-sectional view of the left vertical frame, attachment and surface material. An enlarged cross-sectional view of the vertical frame, the first engagement portion and its surroundings.

Below, an embodiment 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 to this embodiment.

Figure 1 is an overall view of a fitting 10 according to an embodiment of the present invention, as viewed from the inside of a room. Figure 2 is a vertical cross-sectional view taken along the lines II-II in Figure 1. Figure 3 is a horizontal cross-sectional view taken along the lines III-III in Figure 1. Figure 4 is a horizontal cross-sectional view taken along the lines IV-IV in Figure 1. In the following explanation, the notations left and right refer to the state as viewed from the inside of the room, i.e., based on Figure 1.

The fitting 10 is framed all around by a left vertical frame 12, a right vertical frame 14, and an upper frame 16 and a lower frame 18 arranged between the vertical frames 12, 14, which are connected vertically from top to bottom. Furthermore, a lattice 20 is arranged between the vertical frames 12 and 14.

In this application, the prospective direction refers to the indoor/outdoor direction of the fixture 10 (in Figure 1, the direction perpendicular to the paper). The prospective surface refers to a surface that extends along the prospective direction. The visible direction is the direction perpendicular to the prospective direction, and in the case of a vertical frame 12 that is long in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction, and in the case of an upper frame 16 that is long in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction. The visible surface refers to a surface that is along the prospective direction.

The fitting 10 is considered to have an outer frame formed by the vertical frame 12, vertical frame 14, upper frame 16, and lower frame 18, and two smaller frame bodies formed inside. The two frame bodies are the first frame body 24a formed by the left vertical frame 12, right vertical frame 14, mullion 20, and lower frame 18, and the second frame body 24b composed of the left vertical frame 12, right vertical frame 14, upper frame 16, and mullion 20. The first frame body 24a and the second frame body 24b arranged vertically form a stepped window. The fitting 10 may be a continuous window with vertical bones arranged between the upper frame 16 and the lower frame 18, or a continuous stepped window with mullion 20 and vertical bones. The fittings to which the present invention is applicable are not limited to continuous windows, stepped windows, and continuous stepped windows, but may be applicable to windows in which the surface material is held by an attachment to the frame material that constitutes the frame body.

The first frame 24a is fitted with a fixed window made of a panel 26. The second frame 24b is fitted with a screen 28 supported by a frame on all four sides. The screen 28 forms a vertical sliding window that opens to protrude to the outside of the room using an opening and closing mechanism provided on the second frame 24b. The panel 26 is, for example, laminated glass.

The frame materials that make up the vertical frames 12, 14, upper frame 16, lower frame 18, and transom 20 are extruded shapes made of metal such as aluminum alloy, or resin. When using resin for these frame materials, metal reinforcing materials may be provided as appropriate. The vertical frames 12 and 14 use frame materials with the same cross-sectional shape. The inner side surface of the upper frame 16 and the lower side surface of the transom 20 have the same shape.

As shown in FIG. 4, the shoji screen 28 can be directly installed on the vertical frames 12, 14 via opening and closing mechanisms 28a, 28b. On the other hand, since the outer shape of the face material 26 is different from that of the shoji screen 28, it is attached to the transom 20 via an attachment 32 and to the vertical frames 12, 14 via an attachment 34.

The attachments 32, 34 are basically extrusions made from metals such as aluminum alloys. By using such attachments 32, 34, it is possible to attach various types of paneling and shoji screens to the frame materials that make up the row and stepped windows. The attachments 32, 34 can also be made from resin materials.

The following mainly describes the first frame body 24a, the attachments 32, 34 attached to the inner peripheral surface of the first frame body 24a, and the parts related to them. Because the first frame body 24a forms a single frame body, for convenience of explanation, the interlock 20 is also referred to as the upper frame 20. In other words, the first frame body 24a is a frame body framed on all four sides by the left vertical frame 12, the right vertical frame 14, the upper frame 20, and the lower frame 18.

Figure 5 is an enlarged vertical view of the upper frame 20, attachment 32, and panel 26. The panel 26 has multiple pieces of glass 26a and seals 26b provided around the entire circumference near the outer periphery of the interior and exterior facing surfaces of the glass 26a. The interior side seal 26b of the panel 26 is supported by a partition wall 46 (described below), and the exterior side seal 26b is supported by a ridge 45. The ridge 45 has a facing surface piece 45a that supports the exterior seal 26b, and a facing surface piece 45b that extends from the outer periphery of the facing surface piece 45a toward the interior side. A recess 45c is formed at the exterior intersection of the facing surface piece 45a and the facing surface piece 45b.

A surface material outer peripheral space 30 is formed between the surface material 26 and the attachment 32. A first fin piece 20b is provided that protrudes toward the inner peripheral side from the inner peripheral side visible surface 20a of the upper frame 20. A first pocket-shaped recess 37 that opens to the inner peripheral side is formed at the outdoor side end of the inner peripheral side visible surface 20a. A convex portion 20c, which is the outdoor side end of the first pocket-shaped recess 37 and also the inner peripheral side end of the outdoor side visible surface of the upper frame 20, protrudes slightly to the outdoor side, and guides water flowing down from above to the outdoor side to prevent it from entering the inside of the first pocket-shaped recess 37. A second pocket-shaped recess 35 that opens to the outdoor side is formed near the tip of the first fin piece 20b.

As is clear from FIG. 5, the first pocket-shaped recess 37 is located on the exterior side (one side) of the second pocket-shaped recess 35 along the projection direction, and on the outer periphery side. Conversely, the second pocket-shaped recess 35 is located on the interior side (the other side) of the first pocket-shaped recess 37 along the projection direction, and on the inner periphery side. Furthermore, when the facing material 26 is used as a reference, the first pocket-shaped recess 37 is located on the exterior side of the facing material 26, and on the outer periphery side of the outer periphery 26c. Similarly, the second pocket-shaped recess 35 is located on the interior side of the facing material 26, and on the inner periphery side of the outer periphery 26c.

As described above, the inner peripheral side surface of the upper frame 16 and the lower side surface of the transom 20 (upper frame 20) have the same shape, and the upper frame 16 also has the first fin piece 20b and pocket-shaped recesses 35, 37. A water-repellent material 38 (see FIG. 2) is installed in the first pocket-shaped recess 37 in the upper frame 16. The water-repellent material 38 guides rainwater leaking from above to the outside of the room so that it is less likely to splash on the shoji screen 28. A water-tight material 36 (see FIG. 2) is installed in the second pocket-shaped recess 35 in the upper frame 16. The water-tight material 36 forms a watertight structure between the shoji screen 28. The pocket-shaped recesses 35, 37 in the upper frame 16 and the transom 20 have the same shape. Therefore, the first pocket-shaped recess 37 in the transom 20 has a shape that allows the water-repellent material 38 to be installed, and the second pocket-shaped recess 35 in the transom 20 has a shape that allows the water-repellent material 36 to be installed.

The attachment 32 can be divided into an exterior portion 32a, which has a small width in the visible direction and is located on the outer periphery of the panel 26, and an interior portion 32b, which has a large width in the visible direction and is located inside the room relative to the exterior portion 32a and the panel 26. However, the exterior portion 32a and the interior portion 32b are a conceptual division for ease of explanation.

In this embodiment, the projected dimensions of the outdoor portion 32a and the indoor portion 32b are approximately equal. In this embodiment, the projected dimensions and visible dimensions of the indoor portion 32b are approximately equal. The outdoor portion 32a is a portion that is not exposed to the room. The outdoor portion 32a is a portion that supports the surface material 26 together with the ridge 45. The indoor portion 32b exposes the interior wall 52, which will be described later, to the room. A surface material outer peripheral space 30 is formed between the surface material 26 and the outdoor portion 32a of the attachment 32.

The exterior portion 32a includes a surface contact portion 40, an inclined wall 42, a small piece 44, a partition wall 46, a small wall 48, and a first engagement portion 50. The surface contact portion 40 is in surface contact with the inner peripheral side visible surface 20a, and its length in the visible direction accounts for most of the exterior portion 32a. The partition wall 46 is connected to the interior end of the surface contact portion 40 via the inclined wall 42 and extends in the visible direction. The partition wall 46 supports the glass 26a via the seal 26b together with the visible surface piece 45a of the embossing 45. The small piece 44 protrudes from the connection portion between the inclined wall 42 and the partition wall 46 toward the exterior. The small wall 48 protrudes slightly from the exterior end of the attachment 32 toward the inner peripheral side. The first engagement portion 50 protrudes slightly from the exterior end of the attachment 32 toward the outer peripheral side. The first engagement portion 50 will be described in more detail later.

The tip 45ba of the projection surface piece 45b of the edge 45 is bent slightly inward, and fits between the small piece 44 and the inclined wall 42, engaging with the tip of the small piece 44. The inclined wall 42 is inclined so as to move toward the outer periphery from the inside of the room to the outside of the room. The inner end of the small wall 48 is bent toward the inside of the room and engages with the recess 45c of the edge 45.

The indoor portion 32b has an indoor wall 52, a second fin piece 54, and a second engagement portion 56. The indoor wall 52 extends moderately far from the inner peripheral end of the partition wall 46 toward the indoor side along the projection direction. The second fin piece 54 protrudes toward the outer peripheral side from the vicinity of the second engagement portion 56 on the indoor wall 52, and its tip abuts against the inner peripheral projection surface 20a of the upper frame 20. The second engagement portion 56 protrudes toward the outer peripheral side from the indoor side end of the indoor wall 52. The second engagement portion 56 will be described in further detail below.

Figure 6 is an enlarged vertical cross-sectional view of the upper frame 20, the first engagement portion 50, and the surrounding area. As shown in Figure 6, the first pocket-shaped recess 37 is formed so as to be surrounded on three sides by a bottom wall 37a, an outdoor side wall (first engaged portion) 37b, and an indoor side wall 37c. In addition, the outdoor side wall 37b has a small protrusion (first engaged portion) 37ba that protrudes toward the indoor side, and the indoor side wall 37c has a small protrusion 37ca that protrudes toward the outdoor side. The protrusions 37ba, 37ca protrude opposite each other, narrowing the opening of the first pocket-shaped recess 37.

The first pocket-shaped recess 37 can accommodate a water drainage material 38 (see FIG. 2), but in this embodiment, the exterior wall 37b is also used as the first engaged part with which the first engaging part 50 engages. That is, the exterior wall 37b forms an inner peripheral protrusion that protrudes toward the inner peripheral side, and has a protrusion 37ba that protrudes toward the interior side as the first engaged protrusion, and this shape provides an engaged effect.

The first engagement part 50 has an outer peripheral protrusion 50a that protrudes outward and a first engagement protrusion 50b that protrudes from the outer peripheral protrusion 50a to the outside of the room. The first engagement protrusion 50b is slightly inclined toward the outer peripheral side. The first engagement part 50 engages with the outdoor side wall 37b, with the first engagement protrusion 50b located on the outer peripheral side of the protrusion 37ba and not slipping out to the inner peripheral side. In addition, the tip of the protrusion 37ba abuts against the outer peripheral protrusion 50a, making the first engagement part 50 immovable relative to the outdoor side. The first engagement part 50 may be immovable to the outdoor side by the first engagement protrusion 50b abutting against the outdoor side wall 37b.

Figure 7 is an enlarged vertical cross-sectional view of the second engaging portion 56 and its surroundings. As shown in Figure 7, the second pocket-shaped recess 35 is formed so as to be surrounded on three sides by a bottom wall 35a, an inner circumferential side wall (second engaged portion) 35b, and an outer circumferential side wall 35c. The inner circumferential side wall 35b has a small protrusion 35ba protruding outward, and the outer circumferential side wall 35c has a small protrusion 35ca protruding inward. The protrusions 35ba and 35ca protrude in opposing directions, narrowing the opening of the second pocket-shaped recess 35. The bottom wall 35a is part of the first fin piece 20b.

The second pocket-shaped recess 35 is capable of receiving the tension material 36 (see FIG. 2), but in this embodiment, the inner circumferential side wall 35b is also used as the second engaged portion with which the second engaging portion 56 engages. In other words, the inner circumferential side wall 35b has the inner circumferential side wall 35b as the second engaged protrusion that protrudes to the outside of the room, and this shape provides the engaged effect.

The second engagement portion 56 has a base protrusion 56a that protrudes from near the end of the interior wall 52 toward the outside of the room, a second engagement protrusion 56b that protrudes from the tip of the base protrusion 56a toward the inside of the room, and a convex portion 56c that protrudes slightly toward the inside of the room from the base end of the base protrusion 56a. The second engagement protrusion 56b has a corner 56ba that protrudes further from the tip toward the outer periphery. The corner 56ba is slightly inclined toward the inner periphery.

The second engagement portion 56 has a second engagement protrusion 56b located on the outer periphery of the protrusion 35ba of the inner periphery side wall 35b, and engages with the inner periphery side wall 35b without slipping out to the inner periphery. The second engagement portion 56 is provided at the tip of the base protrusion 56a, so that it can be displaced in the projection direction when the base protrusion 56a is elastically tilted by an external force. The second fin piece 54 is near the second engagement portion 56 but is slightly separated from it, so it does not interfere when the second engagement portion 56 is displaced to the outside of the room.

The second fin piece 54 is located close to the second engagement portion 56, and a rectangle with a small projection dimension is formed by the first fin piece 20b, the second fin piece 54, the inner peripheral projection surface 20a, and the four sides of the interior wall 52. The first fin piece 20b and the second fin piece 54 face each other and extend in opposite directions, supporting each other in the projection direction at a close position for stability.

The base projection 56a is spaced from the inner peripheral side wall 35b by the amount of projection of the convex portion 56c, so there is no interference between the two even if it is tilted toward the interior of the room. Therefore, the second engagement projection 56b has some room to move toward the interior of the room, and can reliably engage with the inner peripheral side wall 35b. As mentioned above, the attachment 32 is made of aluminum and has suitable strength, and the base projection 56a has an appropriate length, allowing for suitable elastic deformation. Of course, if the attachment 32 is made of resin, it will be able to deform elastically. The second engagement projection 56b blocks the opening of the second pocket-shaped recess 35.

The tip of the protrusion 56c abuts against the end face of the inner circumferential side wall 35b, preventing the second engagement portion 56 from moving toward the inside of the room. The protrusion 56c, which restricts movement toward the inside of the room, is provided on or near a part of the second engagement portion 56, and acts synergistically with the second engagement protrusion 56b to provide stability, but depending on the design conditions, a means for restricting movement toward the inside of the room equivalent to the protrusion 56c may be provided in a different location.

Fig. 8 is a schematic vertical cross-sectional view showing how the attachment 32 is assembled to the upper frame 20. As shown in Fig. 8, when assembling the attachment 32 to the upper frame 20, first, the first engagement protrusion 50b (see Fig. 6) of the first engagement portion 50 is inserted into the first pocket-shaped recess 37 and positioned on the outer circumferential side of the protrusion 37ba. At this point, the attachment 32 is inclined as shown by the solid line in Fig. 8, and the second engagement portion 56 is in a disengaged state with the inner circumferential side wall 35b and is positioned on the inner circumferential side of the inner circumferential side wall 35b.

As shown in FIG. 6, the outer peripheral protrusion 50a and the first engagement protrusion 50b are formed to be appropriately narrower than the opening width of the first pocket-shaped recess 37, making them easy to insert into the first pocket-shaped recess 37. In particular, the first engagement protrusion 50b has a shape that is slightly inclined toward the outer periphery, making it possible to insert it diagonally between the bottom wall 37a and the protrusion 37ba, making it easy to insert.

The first engaging projection 50b has a slight gap between the bottom wall 37a and the projection 37ba, and has some movement in the viewing direction. Therefore, the first pocket-shaped recess 37 does not restrain the attachment 32, and supports the first engaging portion 50 rotatably around the center of rotation C in the disengaged state before the second engaging portion 56 is engaged.

When the attachment 32 is rotated counterclockwise in FIG. 8 around the center of rotation C, the tip of the corner 56ba of the second engagement portion 56 abuts against the inner circumferential side wall 35b. The corner 56ba receives a reaction force from the inner circumferential side wall 35b toward the outside of the room, so the base protrusion 56a elastically deforms, and the second engagement protrusion 56b and the corner 56ba are temporarily displaced toward the outside of the room.

Since the corner 56ba is slightly inclined toward the inner circumference, the second engagement protrusion 56b is temporarily displaced slightly more toward the outside of the room. As the attachment 32 rotates counterclockwise, the corner 56ba is guided while sliding against the visible surface of the protrusion 35ba in almost surface contact, and then passes the protrusion 35ba. Since there is no reaction force against the second engagement protrusion 56b, the base protrusion 56a returns to its original position, and the second engagement protrusion 56b and the corner 56ba fit into the gap between the protrusion 35ba and the protrusion 35ca. As a result, the attachment 32 is assembled in the specified position as shown by the phantom line in Figure 8.

In this way, the second engagement portion 56 engages with the inner peripheral side wall 35b in a snap-fit manner. Therefore, when assembling the attachment 32 to the upper frame 20, screws, drivers, etc. are not required, and the number of parts and assembly labor can be reduced. However, when assembling the attachment 32, it may be possible to lightly tap it with a tool such as a hammer. Also, since the attachment 32 of the fitting 10 is fixed by snap-fit without using screws, there is no concern of loosening over time. Because no screws are used, no screw holes are required in the upper frame 20 to which it is attached, and there is no concern of water leaking through the screw holes.

The attachment 32 assembled to the upper frame 20 is restricted in movement on the outside of the room by the protrusion 37ba (see FIG. 6) abutting against the outer circumferential protrusion 50a, and on the inside of the room by the inner circumferential side wall 35b (see FIG. 7) abutting against the convex portion 56c. In addition, on the outer circumferential side, the inner circumferential projecting surface 20a abuts against the surface contact portion 40 and the second fin piece 54, restricting movement. Furthermore, on the inner circumferential side, the first engaging protrusion 50b engages with the protrusion 37ba at the outside end, and the second engaging protrusion 56b engages with the inner circumferential side wall 35b at the inside end, restricting movement. In this way, the attachment 32 is stabilized with its movement restricted in four directions.

Figure 9 is a schematic vertical cross-sectional view of the state in which an external force F1 acts on the panel 26 toward the inside of the room. In Figures 9 and 10, the deformation of the panel 26 is shown in an exaggerated manner. As shown in Figure 9, an external force F1 may act on the panel 26 from the outside toward the inside of the room. The external force F1 is mainly a force due to wind. For modeling purposes, it is assumed that the external force F1 acts concentratedly on the center of the panel 26.

When external force F1 acts, a counterclockwise moment M1 acts between the upper frame 20 and the attachment 32. This moment M1 is mainly supported by the protrusion 37ba from the first engagement portion 50 (see FIG. 6). When supported by the protrusion 37ba, the first engagement protrusion 50b abuts against the protrusion 37ba more strongly, so there is no risk of it coming out of the first pocket-shaped recess 37. If the distance between the point of application of the external force F1 and the first engagement portion 50 is L1, then the moment M1 acting on the first engagement portion 50 due to the external force F1 can be expressed as M1 = F1 x L1.

Figure 10 is a schematic vertical cross-sectional view of the state in which an external force F2 acts on the panel 26 toward the outside of the room. As shown in Figure 10, an external force F2 may act on the panel 26 from the inside of the room toward the outside of the room. The external force F2 is, for example, a force caused by a Karman vortex due to wind. For modeling purposes, the external force F2 is assumed to act concentratedly at the center of the panel 26.

When external force F2 acts, a clockwise moment M2 acts between the upper frame 20 and the attachment 32. This moment M2 is supported mainly by the inner side wall 35b from the second engagement portion 56 (see FIG. 7). When supported by the inner side wall 35b, a force is applied in a direction that causes the second engagement protrusion 56b to come out of the inner side wall 35b. If the distance between the point of application of external force F2 and the second engagement portion 56 is L2, then the moment M2 acting on the second engagement portion 56 due to external force F2 can be expressed as M2 = F2 x L2.

The second engaging portion 56 and the inner peripheral wall 35b as the second engaged portion are located on the inner peripheral side of the first engaging portion 50 and the outdoor side wall 37b as the first engaged portion, so L2<L1. Therefore, if the external force F1 and the external force F2 are of the same appropriate magnitude, the moment M2 acting on the second engaging portion 56 is suppressed to be smaller than the moment M1 acting on the first engaging portion 50. Therefore, the moment M2 acts in a direction to remove the second engaging portion 56 from the inner peripheral wall 35b, but since the moment M2 is small, the second engaging portion 56 is prevented from coming off. As a result, the attachment 32 can obtain sufficient fixing strength without using fasteners such as screws.

The first engaging portion 50 and the first pocket-shaped recess 37 are provided on the outer periphery side of the outer peripheral edge 26c of the face material 26, and the second engaging portion 56 and the second pocket-shaped recess 35 are provided on the inner periphery side of the outer peripheral edge 26c, so that the second engaging portion 56 is reliably located on the inner periphery side of the first engaging portion 50. Since the first pocket-shaped recess 37 and the first engaging portion 50 are provided on the outer periphery side of the outer peripheral edge 26c, they do not interfere with each other when assembling the face material 26 to the attachment 32. Since the first pocket-shaped recess 37 is provided on the outer periphery side of the outer peripheral edge 26c, it is suitable for providing a water drainage material 38 in terms of its position. Since the second pocket-shaped recess 35 is provided on the inner periphery side of the outer peripheral edge 26c, it is suitable for providing a water drainage material 36 in terms of its position.

Figure 11 is an enlarged cross-sectional view of the left vertical frame 12, attachment 34, and panel 26. Note that the right vertical frame 14 and attachment 34 and their assembly manner are symmetrical to those shown in Figure 11, so illustration and description are omitted.

As shown in FIG. 11, the seal 26b on the indoor side of the panel 26 is supported by a partition wall 46, and the seal 26b on the outdoor side is supported by a ridge 45. The ridge 45 is the same as that shown in FIG. 5. A panel outer peripheral space 30 is formed between the panel 26 and the attachment 34. The panel outer peripheral space 30 is the same space that is connected to the space between the panel 26 and the attachment 32 (see FIG. 5). In other words, the panel outer peripheral space 30 is formed so as to be connected around the four periphery of the panel 26.

The vertical frame 12 has a first fin piece 12b that protrudes from the inner peripheral visible surface 12a toward the inner peripheral side. The first fin piece 12b has the same shape as the first fin piece 20b in the upper frame 20, and a second pocket-shaped recess 35 that opens to the outside of the room is formed near the tip. The second pocket-shaped recess 35 is the same as that shown in Figures 5 and 7. The vertical frame 12 does not have a first pocket-shaped recess 37 at the outside end of the upper frame 20. A first engaged portion 60 is provided at the outside end of the vertical frame 12.

Attachment 34 is provided with a surface contact portion 40, an inclined wall 42, a small piece 44, a partition wall 46, an interior wall 52, a second fin piece 54, and a second engagement portion 56, similar to those of attachment 32. Strictly speaking, these components of attachment 34 may differ slightly in size from those of attachment 32, but for ease of understanding, the same reference numerals are used and detailed description is omitted.

Attachment 34 is provided with a small wall 62. Small wall 62 corresponds to small wall 48 in attachment 32, but has a shorter find dimension than small wall 48. Attachment 34 does not have the first engaging portion 50 in attachment 32, but instead has a first engaging portion 64. The first engaging portion 64 and the first engaged portion 60 will be described in further detail below.

Attachment 34 is provided with a partition wall 66. Partition wall 66 protrudes from the indoor end of small piece 44 toward the outer periphery, and its end abuts inner peripheral surface 12a. Partition wall 66 and partition wall 46 extend in substantially the same straight line along the viewing direction. Partition wall 66 separates first space 68 up to inclined wall 42 on the outdoor side and second space 70 up to second fin piece 54 on the indoor side. Second fin piece 54 separates second space 70 on the outdoor side and auxiliary space 72 up to first fin piece 12b on the indoor side. First space 68, second space 70, and auxiliary space 72 are connected in the vertical direction, and each is connected to the outside air at the lower end. Surface material outer peripheral space 30 is also connected to the outside air at the lower end.

The first space 68 and the second space 70 are each connected to the outside air and are equal pressure spaces. It is conceivable that rainwater from outside will seep in along the surface contact portion 40 between the inner peripheral surface 12a and the attachment 34, but since the surface contact portion 40 is moderately long in the projection direction, it is difficult for it to reach the first space 68. In addition, since the first space 68 is at outside air pressure, there is no pressure difference with the outside air and there is no action of sucking in water. Even if water reaches the first space 68, the second space 70 is at the same pressure as the first space 68 and there is no pressure difference, so the second space 70 does not suck in water from the first space 68, and water rarely reaches the second space 70. Although the second space 70 is on the inside of the room, it has a moderately large area and is easily maintained at outside air pressure.

Figure 12 is an enlarged cross-sectional view of the vertical frame 12, the first engaging portion 64, and the surrounding area. As shown in Figure 12, the first engaged portion 60 protrudes inward from the inner peripheral visible surface 12a of the vertical frame 12. In addition, the first engaged portion 60 has a small protrusion 60a at its tip that protrudes toward the room side.

The first engagement portion 64 has a small first engagement protrusion 64a that protrudes toward the outside of the room, and a small recess 64b that is recessed toward the inside of the room between the small wall 62. The first engagement protrusion 64a is the outside end of the surface contact portion 40.

The first engaging portion 64 engages with the first engaged portion 60, with the first engaging protrusion 64a located on the outer periphery of the protrusion 60a and unable to slip out to the inner periphery. The tip of the protrusion 60a abuts against the recess 64b, preventing the first engaging portion 64 from moving toward the outside of the room. The first engaging portion 64 may be unable to move toward the outside of the room by the first engaging protrusion 64a abutting against the first engaged portion 60.

The first engaging portion 64 and the second engaging portion 56 of this attachment 34 function in the same way as the first engaging portion 50 and the second engaging portion 56 of the attachment 32 described above, and are attached to the vertical frame 12. The attachment 34 does not require screws for assembly, which reduces the number of parts and the assembly man-hours.

When attaching the attachment 34 to the vertical frame 12, although not shown in the figure, the first engagement protrusion 64a of the first engagement part 64 is first positioned on the outside of the protrusion 60a, and the attachment 34 is rotated around this part as the center of rotation, so that the second engagement part 56 fits into the second pocket-shaped recess 35. This is essentially the same as the method of assembling the attachment 32 described with reference to Figure 8.

The second engagement portion 56 of the attachment 34 is located on the inside of the room and on the inner periphery side of the first engagement portion 64, and can suppress the moment M2 that occurs when an external force F2 from inside the room to outside the room acts as shown in Figure 10, thereby providing sufficient fixing strength.

In the above embodiment, the first engaging portion 50, 64 is relatively on the outside and on the outer periphery, and the second engaging portion 56 is relatively on the inside and on the inner periphery, but the inside and outside may be interchanged. That is, the upper frame 16 (see FIG. 2), whose inner periphery is configured similarly to the blind 20, is shaped to correspond to the outward-opening shoji screen 28. If the shoji screen 28 is configured to open inward, the relative positions of the second pocket-shaped recess 35 and the first pocket-shaped recess 37 are reversed, and the relative positions of the second pocket-shaped recess 35 and the first pocket-shaped recess 37 for the blind 20 are also reversed, so that the first engaging portion 50, 64 is relatively on the inside and on the outer periphery, and the second engaging portion 56 is relatively on the outside and on the inner periphery. Even in such a case, the same effect as in the above embodiment can be obtained.

The fixture of the present invention comprises a frame material constituting a frame body, a surface material provided on the inner periphery of the frame body, and an attachment provided between the frame material and the surface material, the frame material having a first engaged portion on one side along the projection direction and a second engaged portion on the other side, the attachment having a first engaging portion that engages with the first engaged portion and a second engaging portion that engages with the second engaged portion, the second engaging portion and the second engaged portion being located on the inner periphery side of the first engaging portion and the first engaged portion, the first engaged portion immobilizing the first engaging portion relative to the one side, and the second engaged portion engaging the second engaging portion by snap-fitting to immobilize the second engaging portion relative to the inner periphery side.

In this type of attachment, the second engaging portion engages with the second engaged portion by snap fit, eliminating the need for screws and reducing the number of parts and assembly labor. In addition, because the second engaging portion and the second engaged portion are located closer to the inner periphery than the first engaging portion and the first engaged portion, the distance from the center of the panel is reduced, suppressing the moment acting in the direction of the snap fit coming loose, and providing sufficient fixing strength.

In the fixture according to the present invention, the first engaged portion may support the attachment so as to be rotatable about the first engaging portion when the second engaging portion is in a disengaged state with respect to the second engaged portion. This makes it easy to install the attachment.

In the fitting according to the present invention, the first engaged portion may have an inner peripheral protruding portion protruding inward and a first engaged protrusion protruding from the inner peripheral protruding portion to the other side, and the first engaging portion may have an outer peripheral protruding portion protruding outward and a first engaging protrusion protruding from the outer peripheral protruding portion to the one side and positioned on the outer peripheral side of the first engaged protrusion. This allows the first engaging portion to reliably engage with the first engaged portion, restricting movement to the inner peripheral side.

In the fixture of the present invention, the second engaged part may have a second engaged protrusion protruding from the one side, and the second engaging part may have a second engaging protrusion located on the outer periphery of the second engaged protrusion and capable of elastically displacing in the projection direction. This allows the second engaging part to reliably engage with the second engaged part, forming a snap-fit structure.

In the fitting of the present invention, the first engaged portion may be part of a first pocket-shaped recess in which a water-repellent material can be installed. This is advantageous when applying a shoji screen or the like without providing an attachment to the frame material, as it eliminates the need to provide a separate water-repellent material installation portion.

In the fittings of the present invention, the second engaged portion may be part of a second pocket-shaped recess in which a tensioning material can be installed. This is advantageous in cases where a shoji screen or the like is used without providing an attachment to the frame material, as there is no need to provide a separate tensioning material installation portion.

In the fixture of the present invention, the first engaging portion and the first engaged portion may be provided on the outer periphery side of the outer periphery of the surface material, and the second engaging portion and the second engaged portion may be provided on the inner periphery side of the outer periphery of the surface material. This allows the second engaging portion and the second engaged portion to be reliably located on the inner periphery side of the first engaging portion and the first engaged portion, and to reduce the distance from the center of the surface material.

In the fitting of the present invention, the frame material has a first fin piece that protrudes inward from the inner peripheral side visible surface wall, the attachment has a second fin piece that protrudes outward from the vicinity of the second engagement portion and abuts against the inner peripheral side visible surface wall of the frame material, and the second engaged portion may be provided on the first fin piece. The first fin piece and the second fin piece complement and support each other, stabilizing the periphery of the second engagement portion and the second engaged portion.

The present invention is not limited to the above-described embodiment, and can of course be freely modified without departing from the spirit of the present invention.

10 fitting, 12, 14 vertical frame, 20 lattice (upper frame), 20b first fin piece, 24a first frame body, 24b second frame body, 26 surface material, 26a glass, 26c outer edge, 28 shoji screen, 32, 34 attachment, 35 pocket-shaped recess, 35b inner side wall (second engaged portion, second engaged protrusion), 35c outer side wall, 36 watertight material, 37 pocket-shaped recess, 37b exterior wall (inner protrusion, first engaged portion), 37ba protrusion (first engaged protrusion), 37c interior wall, 38 water drip material, 50 first engaging portion, 50a outer peripheral protrusion, 50b first engaging protrusion, 54 second fin piece, 56 second engaging portion, 56a base protrusion, 56b second engaging protrusion, 56ba corner, 56c Convex portion, 60 First engaged portion, 60a Projection, 64 First engaging portion, 64a First engaging projection, C Center of rotation, F1, F2 External force, L1, L2 Distance, M1, M2 Moment

Claims (8)

The vertical frame that constitutes the frame of a stepped window or the vertical frame that constitutes the frame of a continuous window ;
A surface material provided on the inner peripheral side of the rib or the vertical bone ;
An attachment provided between the beam or the vertical frame and the surface material;
having
The ligature or the vertical bone has a first engaged portion on one side along the projection direction and a second engaged portion on the other side,
the attachment has a first engaging portion that engages with the first engaged portion and a second engaging portion that engages with the second engaged portion,
the second engaging portion and the second engaged portion are located on the inner circumferential side of the first engaging portion and the first engaged portion,
the first engaged portion prevents the first engaging portion from moving relative to the one side,
The second engaged portion engages with the second engaging portion by a snap fit to prevent it from moving toward the inner periphery. The fixture according to claim 1, characterized in that the first engaged portion is supported by the attachment so as to be rotatable relative to the first engaging portion when the second engaging portion is in a disengaged state with respect to the second engaged portion. the first engaged portion has an inner peripheral protruding portion protruding toward an inner peripheral side and a first engaged projection protruding from the inner peripheral protruding portion toward the other side,
The fixture according to claim 1 or 2, characterized in that the first engagement portion has an outer peripheral protruding portion protruding outward and a first engagement protrusion protruding from the outer peripheral protruding portion to the one side and positioned on the outer peripheral side of the first engaged protrusion. The second engaged portion has a second engaged projection that protrudes toward the one side,
The building fixture described in any one of claims 1 to 3, characterized in that the second engaging portion is located on the outer periphery of the second engaged protrusion and has a second engaging protrusion that is elastically displaceable in the projected direction. The fixture according to any one of claims 1 to 4, characterized in that the first engaged portion is part of a first pocket-shaped recess in which a drip-proof material can be installed. The fixture according to any one of claims 1 to 5, characterized in that the second engaged portion is part of a second pocket-shaped recess in which a tension material can be installed. the first engaging portion and the first engaged portion are provided on the outer periphery side of the outer periphery of the face material,
The fixture according to any one of claims 1 to 6, characterized in that the second engaging portion and the second engaged portion are provided on the inner side of the outer periphery of the surface material. The eyeless or vertical bone has a first fin piece protruding from the inner peripheral side visible surface wall to the inner peripheral side,
The attachment has a second fin piece that protrudes from the vicinity of the second engagement portion toward the outer periphery and abuts against the inner periphery side visible surface wall of the rib or the vertical bone ,
The fixture according to any one of claims 1 to 7, characterized in that the second engaged portion is provided on the first fin piece.

Images