JP6321456B2 - Resin frame and window for joinery - Google Patents

Description

  The present invention relates to a resin frame for joinery and a resin window to which the resin frame for joinery is applied.

  In recent fittings, many are used in which an opening frame or a shoji ridge is made of a resin material (see, for example, Patent Document 1). In this type of joinery, since the thermal conductivity of the resin material is lower than that of a metal such as aluminum, there is an advantage that condensation does not easily occur even when the temperature difference between the room and the room is large.

  In addition, among these joinery, a reinforcing member having a melting point higher than that of a resin material is disposed inside the frame member, and the reinforcing member is connected to a frame. According to this joinery, for example, even when the resin material is melted or burnt down due to a fire, the connection state between the reinforcing material and the housing is maintained, so that it is possible to prevent the opening frame and the face material from falling off the housing. It becomes possible.

JP 2006-37584 A

  By the way, in the above-mentioned opening frame, in addition to the frame member arranged along the opening of the housing, the middle bones such as the vertical aggregate and the plain material arranged so as to span between the frame members Some have materials. The middle aggregate constitutes a frame opening for disposing a face material such as glass or a shoji between the frame member.

  Here, the frame member of the opening frame is disposed along the opening of the housing and is connected to the housing, so that even in the event of a fire, it is difficult to reach a relatively high temperature. It can be said. However, the medium aggregate disposed so as to be spanned between the frame members is separated from the housing, and therefore, when a fire occurs, it is likely to be at a higher temperature than the frame members. For this reason, in the opening frame provided with the middle aggregate, even if the reinforcing material is disposed inside the middle aggregate, the resin material constituting the middle aggregate is melted or burnt down in the event of a fire, and the glass Fireproof performance may be significantly impaired, for example, through-holes are formed so as to pass through a space between a face material such as a shoji and a shoji.

  In view of the above circumstances, the present invention provides a resin frame for a joinery and a resin window that can prevent a through-hole from being formed in a medium aggregate even when exposed to high temperatures such as when a fire occurs. The purpose is to provide.

In order to achieve the above object, the resin frame for joinery according to the present invention is configured by disposing a resin frame member along the edge of the opening provided in the housing, and between the frame members facing each other. A resin frame for joinery comprising a resin middle aggregate arranged so as to be stretched over and forming a frame opening for arranging a face material in a region surrounded by the frame member and the middle aggregate The reinforcing member is disposed in the hollow part of the frame member and the middle aggregate, and the reinforcing member disposed in the hollow part of the frame member and the reinforcing member disposed in the hollow part of the middle aggregate. And a reinforcing member disposed in a hollow portion of the frame member is connected to the housing, and the intermediate aggregate is a base portion facing an end surface of a face member provided in the frame opening. And a face material abutting fin portion facing the surface of the face material, the base and the face material Are those respectively reinforcements inside the contact fin portion is disposed, the reinforcing material in said aggregate, distribution inside the inside disposed portion and said surface material abutting fin portion of the base Each of the provided portions is provided with a heat expansion material that expands toward the frame opening when heated.

  According to this invention, when exposed to a high temperature, the heat-expandable material disposed in the portion along the finding surface and the portion along the prospective surface in the reinforcing material of the middle aggregate expands, and between the surface materials Since the secured space is blocked by the heat expansion material, it is possible to prevent a situation where a through hole is formed in the middle aggregate.

Further, according to the present invention, in the resin frame for joinery described above, the first reinforcing material disposed inside the face material abutting fin portion and the second reinforcing material disposed inside the base portion are individually provided. It is provided .

  According to this invention, since the first reinforcing material and the second reinforcing material are individually configured, it is possible to easily perform the work when arranging these reinforcing materials in the hollow portion of the medium aggregate. It becomes.

Further, the present invention is the above-described resin frame for joinery, wherein the intermediate aggregate includes a face material holding member for holding a face material to be fitted to the prospective surface of the base, and the face material holding member is Further, it is characterized in that it is molded from a material having a melting point higher than that of the resin material constituting the middle aggregate, and is connected to a reinforcing material disposed on the middle aggregate.

  According to this invention, even when the middle aggregate is melted or burned out, the face material can be prevented from falling off by the reinforcing material and the face material holding member provided on the middle aggregate.

In the resin window according to the present invention, a resin frame member is disposed along the edge of the opening provided in the housing, and the resin aggregate is spanned between the frame members facing each other. A resin window comprising a resin frame configured by disposing, and a resin window configured by disposing a face material in a frame opening of a resin frame surrounded by the frame member and the middle aggregate. Reinforcing material is disposed in each of the member and the hollow portion of the middle aggregate, and the reinforcing material disposed in the hollow portion of the frame member is connected to the reinforcing material disposed in the hollow portion of the middle aggregate. In addition, the reinforcing member disposed in the hollow portion of the frame member is connected to the housing, and the middle aggregate further includes a base portion facing an end surface of the face member provided in the frame opening, and the face member. A face material abutting fin portion facing the surface, and each inside the base and the face material abutting fin portion. Are those reinforcing material is disposed, the reinforcing material in said aggregate, each of the inside arranged portion and internally disposed portion of said surface member abutment fin portion of the base A heating expansion material is provided that expands toward the frame opening when heated.

  According to this invention, when exposed to a high temperature, the heated expansion material disposed in the portion along the finding surface and the portion along the prospective surface of the reinforcing material expands, and the space secured between the surface material Is blocked by the expansion material, it is possible to prevent a through-hole from being formed in the middle aggregate.

  According to the present invention, when exposed to a high temperature, the heated expansion material disposed in the portion along the finding surface of the reinforcing material and the portion along the prospective surface expands, and the space secured between the surface material. Is blocked by the expansion material, it is possible to prevent a through-hole from being formed in the middle aggregate, and to improve the fireproof performance.

FIG. 1 is a view of a resin window according to an embodiment of the present invention as viewed from the indoor side. FIG. 2 is a cross-sectional view of the resin window shown in FIG. 3 is a cross-sectional view taken along line XX in FIG. 4 is a cross-sectional view taken along line YY in FIG. FIG. 5 is an enlarged cross-sectional view showing a main part of the resin window shown in FIG. FIG. 6 is a diagram for explaining a connection state between the reinforcing material arranged inside the frame member and the reinforcing material arranged inside the middle aggregate in the resin window shown in FIG. 1.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a resin frame for joinery and a resin window according to the present invention will be described in detail with reference to the accompanying drawings.

  1 to 4 show a resin window according to an embodiment of the present invention. The resin window illustrated here is called a continuous window in which two windows are arranged side by side inside the opening frame (resin frame) 10. In the present embodiment, a continuous window having a vertical sliding window A and a fitting window B inside the opening frame 10 is illustrated.

  The opening frame 10 is provided with an upper frame member 11, a lower frame member 12, and left and right vertical frame members 13 and 14, respectively, along the four circumferences of a rectangular opening 1 a provided in the housing 1, and further, upper frame members that face each other. The vertical aggregate (medium aggregate) 15 is arranged along the vertical direction so as to span between the lower frame member 11 and the lower frame member 12. These frame members 11, 12, 13, and 14 and the vertical aggregate 15 are extruded shape members formed of a resin material, and are configured to have a substantially uniform cross-sectional shape over the entire length. In the opening frame 10 according to the present embodiment, the upper frame member 11, the lower frame member 12, and the left and right vertical frame members 13 and 14 that have the same cross-sectional shape are applied, and they are connected by heat-welding each other. Like to do.

  Each frame member 11, 12, 13, 14 constituting the opening frame 10 has a frame base fin portion 11b, 12b, 13b, 14b, a draining portion with respect to a frame base portion 11a, 12a, 13a, 14a having a rectangular tube shape. 11c, 12c, 13c, 14c, frame surface material abutting fins 11d, 12d, 13d, 14d, and frame pressing edge mounting grooves 11e, 12e, 13e, 14e are integrally provided. The case support fin portions 11b, 12b, 13b, and 14b are thin plate-like portions that are screwed together with the frame members 11, 12, 13, and 14 superimposed on the outer surface of the case 1 when the frame members 11, 12, 13, and 14 are attached to the case 1. is there. Each of the housing support fin portions 11b, 12b, 13b, and 14b protrudes toward the outer periphery from a position that is substantially centered on the outer peripheral side prospective surface of the frame base portions 11a, 12a, 13a, and 14a. The draining portions 11c, 12c, 13c, and 14c are portions that form a hollow plate shape that protrudes substantially perpendicularly from the finding surface facing the outdoor side of the frame base portions 11a, 12a, 13a, and 14a toward the outdoor side. The prospective surface located on the inner peripheral side of the draining portions 11c, 12c, 13c, and 14c is slightly inclined toward the outer peripheral side toward the outdoor side. The frame surface material contact fins 11d, 12d, 13d, and 14d protrude from the edge on the inner side toward the inner periphery of the frame base portions 11a, 12a, 13a, and 14a toward the inner periphery, and are hollow. It is comprised in the shape of a plate. The frame pressing edge mounting grooves 11e, 12e, 13e, and 14e are groove-like portions provided on the edge portion that is the outdoor side on the inner peripheral side prospective surface of the frame base portions 11a, 12a, 13a, and 14a.

  Frame reinforcement members 21, 22, 23, and 24 are disposed inside the frame base portions 11 a, 12 a, 13 a, and 14 a of the frame members 11, 12, 13, and 14, respectively. The frame reinforcing members 21, 22, 23, and 24 are formed of a material having a melting point higher than that of a resin material such as aluminum or iron. As shown in FIGS. 2 to 4, the frame reinforcing members 21, 23, 24 arranged on the frame base 11 a of the upper frame member 11 and the frame bases 13 a, 14 a of the vertical frame members 13, 14 are made up of the frame support fin portion 11 b. , 13b and 14b are connected to a metal support plate 25 fixed to the housing 1 by screws.

  On the other hand, the vertical aggregate 15 has a rectangular cylindrical vertical base portion 15a configured such that the dimension along the prospective direction is substantially the same as the frame base portions 11a, 12a, 13a, and 14a of the frame members 11, 12, 13, and 14. It is what has. As shown in FIGS. 2 and 5, the vertical aggregate 15 is integrally formed with a vertical surface material contact fin portion 15 b and a vertical pressing edge mounting groove 15 c on both sides of the vertical base portion 15 a. The vertical surface member contact fin portion 15b protrudes from the edge on the indoor side toward the frame surface material contact fin portions 13d and 14d of the vertical frame members 13 and 14 facing each other, and is independent of the vertical base portion 15a. It is configured in a hollow plate shape. The vertical pressing edge mounting groove 15c is a groove-like portion provided on the edge that is the outdoor side.

  Similar to the frame members 11, 12, 13, and 14, a vertical reinforcing material (second reinforcing material) 30 formed of a material having a melting point higher than that of the resin material is disposed on the vertical base portion 15 a of the vertical aggregate 15. . As is clear from FIG. 5, the vertical reinforcing member 30 disposed on the vertical base portion 15 a is thicker than the frame reinforcing members 21, 22, 23, and 24 disposed on the frame members 11, 12, 13, and 14. And the cross section is formed in a U-shape so as to follow the finding surface facing the outdoor side and the prospective surfaces on both sides of the vertical base portion 15a. As shown in FIG. 6, the vertical reinforcing member 30 of the vertical aggregate 15 is connected to the frame reinforcing member 21 disposed on the upper frame member 11 via a connecting fitting 31.

  As shown in FIG. 1, the vertical sliding window A is a shoji (face material) having a multilayer glass 41 in a rectangular frame opening AF surrounded by the frame members 11, 12, 13 and the vertical aggregate 15. ) 40 is configured to be openable and closable, and is provided on the left side of the opening frame 10 when viewed from the indoor side. The fitting window B is configured by supporting a multi-layer glass (face material) 51 in a frame opening BF surrounded by the frame members 11, 12, 14 and the vertical aggregate 15. In this case, it is provided on the right side of the opening frame 10. As shown in FIGS. 2 to 4, the multi-layer glasses 41 and 51 used for the vertical sliding window A and the fitting window B are both glass 41 a, 41 b, 51 a and 51 b through spacer members 42 and 52. Are joined by an adhesive (secondary seal). In the present embodiment, the glass-containing glasses 41a and 51a in which a net is sealed inside the glass, and the low emission glass (hereinafter referred to as Low-E glass 41b and 51b) in which a metal film is provided on one surface of the glass. Are applied).

  After the double-glazed glass 41 of the vertical sliding window A is configured with the shoji 40 by mounting the eaves member 43 around the four sides, the upper eaves member 43 and the upper frame member 11 are in a state where the netted glass 41a is on the outdoor side. In the meantime, a friction stay 45 is interposed between the lower collar member 43 and the lower frame member 12 so that the frame opening AF of the opening frame 10 is supported so as to be open to the outdoor side. As shown in FIGS. 2 and 5, a shoji space (space secured between the face materials) AF <b> 1 is secured between the eaves member 43 serving as the door to the shoji 40 and the vertical aggregate 15. It is. As shown in FIG. 2, a lock device 46 for keeping the shoji 40 closed with respect to the opening frame 10 is disposed in the shoji space AF1.

  The multi-layer glass 51 of the fitting window B is directly disposed in the frame opening BF with the meshed glass 51a facing the outdoor side, the frame pressing edge mounting grooves 11e, 12e, 14e of the frame members 11, 12, 14 and the vertical glass window 51a. By attaching the pressing edges 53 to the vertical pressing edge mounting grooves 15 c of the aggregate 15, the frame surface material contact fins 11 d, 12 d, 14 d and the pressing edges 53, and the vertical surface material contacting fins 15 b and the pressing edges 53, respectively. It is supported in a state of being sandwiched between the two.

  On the periphery of the multilayer glass 51, a space for glass (space secured between the face materials) BF1 is secured between the frame bases 11a, 12a, and 14a and between the vertical bases 15a. As shown in FIG. 2, FIG. 3 and FIG. 5, a glass holding member (face material holding member) 54 and a setting block 55 are provided at appropriate locations in the glass space BF1. The glass holding member 54 prevents the multilayer glass 51 from dropping off from the frame opening BF, and is formed of a material having a melting point higher than that of a resin material such as aluminum or iron. These glass holding members 54 are respectively connected to the frame reinforcing members 21, 22, 24 arranged on the frame members 11, 12, 14 and the vertical reinforcing member 30 arranged on the vertical aggregate 15 via connecting screws 54 a. It is connected. The setting block 55 is for ensuring the space | interval of the end surface of the multilayer glass 51, and the frame base parts 12a and 14a, and the space | interval of the end surface of the multilayer glass 51, and the vertical base part 15a.

  In the resin window configured as described above, the frame members 11, 12, 13, and 14 that constitute the opening frame 10 and the flange member 43 of the shoji 40 are formed of a resin material, so that there is a temperature difference between the room and the outdoors. Even when it is large, there is an advantage that condensation does not easily occur. Moreover, the reinforcing members 21, 22, 23, 24, 30 having a melting point higher than that of the resin material are disposed inside the frame members 11, 12, 13, 14 and the longitudinal aggregate 15, respectively, 22, 23, 24, 30 are connected to the housing 1, so that, for example, when the resin material is melted or burnt down by a fire, the connection state between the reinforcing materials 21, 22, 23, 24, 30 and the housing 1 is maintained. As a result, it is possible to prevent the opening frame 10, the shoji 40, and the multilayer glass 51 from falling off the casing 1.

  Here, in the opening frame 10 provided with the vertical aggregate 15, the frame members 11, 12 are compared with the frame members 11, 12, 13, 14 disposed along the rectangular opening 1 a of the housing 1. When the vertical aggregate 15 arranged so as to be stretched between the two tends to be in a high temperature state and a fire occurs outside the room, the resin material of the vertical aggregate 15 is earlier than the frame members 11, 12, 13, 14. Melt or burn out. When the resin material of the vertical aggregate 15 is melted or burned out in the above-described resin window, the glass space BF1 or the shoji space AF1 becomes a through hole, and there is a possibility that the fireproof performance is impaired.

  For this reason, in the above-described resin window, the first heating expansion material 61 is provided on the vertical reinforcing material 30 disposed on the vertical aggregate 15, and the auxiliary reinforcing material (first reinforcing material) is provided inside the vertical surface material contact fin portion 15b. ) 32 and a second heating expansion material 62 is provided on the auxiliary reinforcing material 32.

  The 1st heating expansion material 61 is affixed on the surface of the vertical reinforcing material 30 so that it may follow a prospective surface with respect to the frame opening part BF of the fitting window B and the frame opening part AF of the vertical sliding window A, respectively. . The first heating expansion material 61 has a width that can cover the end surface of the multi-layer glass 51 of the fitting window B, and has a length that extends over the entire end surface of the multi-layer glass 51. When thermally expanded, it is possible to close the glass space BF1 and the shoji space AF1 through the vertical base portion 15a. The auxiliary reinforcing member 32 is formed of a metal having a melting point higher than that of the resin material, like the reinforcing members 21, 22, 23, 24, and 30, and is used for the frame opening BF of the fitting window B and the vertical sliding window A. The frame opening AF is disposed inside the vertical surface material abutting fin 15b in a state along the found surface. The auxiliary reinforcing member 32 is connected to the vertical reinforcing member 30 via an auxiliary connecting member 33. The second heating expansion material 62 is affixed to the surface of the auxiliary reinforcing material 32 so as to be along the found surface with respect to the frame opening BF of the fitting window B and the frame opening AF of the vertical sliding window A, respectively. . The second heating expansion material 62 has a width substantially equal to the dimension along the direction in which the glass space BF1 and the shoji space AF1 are found, and has a length over the entire length of each of the spaces BF1 and AF1. In the case of thermal expansion, it is possible to cover a part of each of the spaces BF1 and AF1 by penetrating the vertical surface member contact fin portion 15b.

  The reason why the first heating expansion material 61 is provided inside the vertical base portion 15a is mainly to prevent the Low-E glass 51b of the fitting window B from being damaged by stress bending when a fire occurs outdoors. It is. That is, when the first heating expansion material 61 is provided outside the vertical base portion 15a so as to directly face the end surface of the multilayer glass 51, the first heating expansion material 61 reaches the expansion temperature at an early timing. The glass space BF1 and the shoji space AF1 can be closed at an early stage. Therefore, from the viewpoint of preventing the formation of the through hole, it is preferable to provide the first heating expansion material 61 outside the vertical base portion 15a.

  However, when the glass space BF1 is closed at a relatively early stage by the first heating expansion material 61, heat propagation through the glass space BF1 is almost eliminated, and therefore the outdoor-side netted glass 51a. Only will be thermally expanded. Since the meshed glass 51 a and the Low-E glass 51 b are joined by the spacer member 52, stress due to thermal expansion displacement of the meshed glass 51 a is applied to the Low-E glass 51 b through the spacer member 52. The Low-E glass 51b will be damaged such as cracks and chips.

  As described above, when the first heating expansion material 61 is disposed inside the vertical base portion 15a, a gradual time is required until the expansion temperature is reached. Therefore, the bonding state (secondary seal) by the adhesive with the spacer member 52 is released by the heat propagated through the glass space BF1 until the first heating expansion material 61 expands, and enters the net. It is possible to prevent a situation in which stress due to thermal expansion displacement of the glass 51a is applied to the Low-E glass 51b.

  However, if the expansion timing of the first heating expansion material 61 is delayed, it is not necessarily preferable from the viewpoint of closing the through hole. Therefore, in the above-described resin window, the second heating expansion material 62 is provided on the auxiliary reinforcing material 32 disposed inside the vertical surface material contact fin portion 15b. That is, since the second heating expansion material 62 is provided in a posture to face the outdoor fire, it reaches the expansion temperature by the heat propagated through the glass space BF1 before the first heating expansion material 61 thermally expands, Part of the glass space BF1 can be covered. Furthermore, since the auxiliary reinforcing material 32 is disposed so as to cover the finding surface located on the indoor side of the glass space BF1, it acts to suppress the formation of the through hole.

  As a result, according to the above-mentioned resin window, even when a fire occurs outdoors, a through-hole is formed in the vertical aggregate 15 without causing damage due to stress bending of the Low-E glass 51b. It is possible to prevent fire and improve fire prevention performance.

  In the above-described embodiment, the resin frame and the resin window provided with the vertical aggregate are illustrated, but the present invention is not necessarily limited to this, and is spanned between the vertical frame members facing each other. It is also possible to apply to a resin frame and a resin window in which a seamless material (medium aggregate) is disposed. Moreover, although the resin window provided with the fitting window and the vertical sliding window is illustrated, it is not necessarily limited to these combination. Furthermore, although the shoji which provided the double layer glass and the double layer glass as a face material is illustrated, it is not necessarily restricted to what provided the double layer glass. In addition, when applying multilayer glass, it is not necessarily required to be a combination of glass with a mesh and Low-E glass.

  In the above-described embodiment, the longitudinal reinforcing member 30 and the auxiliary reinforcing member 32 arranged on the longitudinal aggregate 15 are connected to each other, and only the longitudinal reinforcing member 30 is connected to the frame reinforcing member of the frame member. However, only the auxiliary reinforcing material 32 may be connected to the frame reinforcing material, or both the vertical reinforcing material 30 and the auxiliary reinforcing material 32 may be connected to the frame reinforcing material. When both the vertical reinforcing member 30 and the auxiliary reinforcing member 32 are connected to the frame reinforcing member, it is not always necessary to connect the vertical reinforcing member 30 and the auxiliary reinforcing member 32 to each other. Note that the connection fitting 31 and the auxiliary connection member 33 for connecting the reinforcing members may be arranged outside the middle aggregate or inside the middle aggregate.

  Furthermore, in the above-described embodiment, the vertical reinforcing member 30 and the auxiliary reinforcing member are illustrated as the vertical aggregate 15 in which the vertical base portion 15a and the vertical surface member abutting fin portion 15b form an independent hollow shape. 32, but in the case of applying a continuous space in which the two reinforcing members are arranged in the middle aggregate, so as to follow each of the finding surface and the prospective surface of the frame opening. It is possible to apply the integrally formed reinforcing material.

  In the above-described embodiment, the frame reinforcing member 22 disposed in the hollow portion of the lower frame member 12 is not connected to the housing 1 in order to prevent water leakage. 30 is not connected to the frame reinforcement 22. However, when the frame reinforcing member 22 is connected to the housing 1, the vertical reinforcing member 30 may be connected to the frame reinforcing member 22. Also, in the case of a resin frame provided with a seamless material, both ends of the reinforcing material provided in the hollow portion of the seamless material are respectively connected to the frame reinforcing material provided in the hollow portion of the vertical frame member. Is preferred.

  DESCRIPTION OF SYMBOLS 1 Housing, 1a Rectangular opening part, 10 Opening frame, 11, 12, 13, 14 Frame member, 15 Longitudinal aggregate 21, 22, 22, 23, 24 Frame reinforcing material, 30 Vertical reinforcing material, 32 Auxiliary reinforcing material, 40 Shoji , 51 Multi-layer glass, 54 Glass holding member, 61 1st heating expansion material, 62 2nd heating expansion material, AF, BF frame opening, AF1 shoji space, BF1 glass space

Claims (4)

It is configured by disposing a resin-made frame member along the edge of the opening provided in the housing, and includes a resin-made central aggregate disposed so as to span between the mutually facing frame members, A resin frame for joinery that constitutes a frame opening for disposing a face material in each region surrounded by the frame member and the middle aggregate,
A reinforcing material is disposed in each of the hollow portions of the frame member and the middle aggregate, and between the reinforcing material disposed in the hollow portion of the frame member and the reinforcing material disposed in the hollow portion of the middle aggregate. And connecting the reinforcing material disposed in the hollow portion of the frame member to the housing,
Further, the intermediate aggregate has a base portion facing an end surface of a face material provided in the frame opening , and a face material abutting fin portion facing the surface of the face material. Reinforcing material is arranged inside the fin part ,
The reinforcing material of the middle aggregate includes a portion that is disposed inside the base portion and a portion that is disposed inside the face material abutting fin portion. A resin frame for joinery, which is provided with a heat expansion material that expands toward the surface. The first reinforcing member disposed inside the face material abutting fin portion and the second reinforcing member disposed inside the base portion are individually provided. The resin frame for joinery described. The intermediate aggregate includes a face material holding member for holding a face material to be fitted to the prospective surface of the base ,
The said face material holding member was shape | molded with the material whose melting | fusing point is higher than the resin material which comprises the said middle aggregate, and connected with the reinforcing material arrange | positioned in the said middle aggregate. Resin frame for joinery. A resin frame configured by disposing a resin frame member along the edge of the opening provided in the housing, and disposing a resin medium aggregate between the frame members facing each other. A resin window configured by disposing a face material in a frame opening of a resin frame surrounded by the frame member and the middle aggregate,
A reinforcing material is disposed in each of the hollow portions of the frame member and the middle aggregate, and between the reinforcing material disposed in the hollow portion of the frame member and the reinforcing material disposed in the hollow portion of the middle aggregate. And connecting the reinforcing material disposed in the hollow portion of the frame member to the housing,
Further, the intermediate aggregate has a base portion facing an end surface of a face material provided in the frame opening, and a face material abutting fin portion facing the surface of the face material. Reinforcing material is arranged inside the fin part ,
The reinforcing material of the middle aggregate includes a portion that is disposed inside the base portion and a portion that is disposed inside the face material abutting fin portion. A resin window, characterized in that a heat expansion material that expands toward the resin is disposed.

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