JP2018066154A - Frame body corner part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame body corner part structure capable of easily forming a gap for sealing between end surfaces in the longer direction of each frame.SOLUTION: A frame body corner part structure is constituted by a frame body, and a corner block 71 arranged inside an upper frame, a lower frame 40 and a jamb 60A. An inclined end surface 27 is formed at an end part 25A in the longer direction of the upper frame, the lower frame 40 and the jamb 60A. The corner block 71 has: a first insertion piece part 72; a second insertion piece part 73 extending by crossing the first insertion piece part 72; and a contact surface 74 for forming a gap C between inclined end surfaces 27 respectively by coming into contact with each end part 25A, in a state in which the first insertion piece part 72 is inserted in the jamb 60A and the second insertion piece part 73 is inserted in the lower frame 40.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a frame corner structure such as a curtain wall used as an outer wall of a building.

2. Description of the Related Art Conventionally, there has been known a curtain wall including a frame configured by an upper frame, a lower frame, and left and right vertical frames, and a glass panel incorporated inside the frame (see Patent Document 1).
In this curtain wall, the longitudinal end surfaces of the upper frame, the lower frame, and the left and right vertical frames are cut so as to form an inclined surface of 45 degrees, and each inclined surface is abutted with each other and formed into an L-shape. The frame body corner structure is configured by inserting the block into the frame and fastening it with bolts.

JP 2002-317518 A

By the way, in the frame corner structure described above, when sealing the abutting portions of the inclined surfaces of the upper frame, the lower frame, and the left and right vertical frames, it is necessary to form a gap for sealing between the inclined surfaces. There is.
However, it is not easy to position the frames so that the gap is formed. For example, when the gap is crushed due to positioning errors between the frames, the gap cannot be filled with an irregular sealing material, and a sheet-shaped fixed sealing material that is intended to be interposed in the gap May break.

  An object of the present invention is to provide a frame corner structure that can easily form a gap for sealing between end faces in the longitudinal direction of each frame.

  The corner structure of the frame body of the present invention is configured by a frame body that frames a vertical frame and a horizontal frame, and a corner block disposed inside the vertical frame and the horizontal frame. The end in the longitudinal direction has inclined end faces that are inclined with respect to the longitudinal direction of the vertical frame and the horizontal frame and face each other, and the corner block includes a first insertion piece and the first insertion The second insertion piece along the direction intersecting the longitudinal direction of the piece, the first insertion piece is inserted into the vertical frame, and the second insertion piece is within the horizontal frame. It has a contact part which forms a gap between the end faces in the longitudinal direction of the vertical frame and the horizontal frame in the inserted state and forms a gap between the inclined end surfaces of the vertical frame and the horizontal frame.

  According to the frame corner structure of the present invention, the corner block is arranged inside the vertical frame and the horizontal frame without interposing a spacer separate from the corner block between the inclined end surfaces of the vertical frame and the horizontal frame. Thus, a sealing gap can be easily formed between the inclined end faces facing each other when the abutting portion hits the end in the longitudinal direction of the vertical frame and the horizontal frame.

In the frame corner structure of the present invention, the first insertion piece has a first inner surface and a first outer surface that contact the inner surface of the vertical frame, and the second insertion piece is A second inner side surface and a second outer side surface that contact the inner surface of the horizontal frame, and the contact portion is constituted by a contact surface that is continuous with the first inner side surface and the second inner side surface; Is preferably inclined with respect to the longitudinal direction of the first insertion piece part and the second insertion piece part.
According to such a configuration, the contact surfaces that are inclined with respect to the longitudinal direction of the first insertion piece portion and the second insertion piece portion are in the vertical direction in a state where the corner block is disposed in the vertical frame and the horizontal frame. It abuts against the end portions of the frame and the horizontal frame in the longitudinal direction. For this reason, a clearance gap can be formed between the said inclined end surfaces, without providing the protrusion etc. which are interposed between the inclined end surfaces of a vertical frame and a horizontal frame in a corner block. Further, the protrusions, spacers, and the like are interposed in the gap so as not to disturb the filling and installation of the sealing material.

In the frame corner structure of the present invention, the inclination angle of the inclined end surface of the vertical frame with respect to the longitudinal direction of the vertical frame and the inclination angle of the inclined end surface of the horizontal frame with respect to the longitudinal direction of the horizontal frame are the vertical frame and It is preferable that the crossing angle in the longitudinal direction of the horizontal frame is an angle obtained by dividing the horizontal frame in half, and the contact surface is disposed orthogonal to the direction along the inclined end surface.
According to such a configuration, the end portions in the longitudinal direction of the vertical frame and the horizontal frame are in contact with the contact surface, so that the contact angles of the end portions in the longitudinal direction of the vertical frame and the horizontal frame with respect to the contact surface are the same. The alignment of the inclined end faces of the vertical frame and the horizontal frame can be assisted so as to be an angle.

In the frame corner structure according to the present invention, the first inner surface and the second inner surface are respectively formed with inner protrusions that contact the inner surfaces of the vertical frame and the horizontal frame, and the first inner surface and It is preferable that the part located between the said internal protrusion part and the said contact surface among said 2nd inner surface is arrange | positioned at intervals with respect to the inner surface of the said vertical frame and the said horizontal frame.
According to such a structure, compared with the case where there is no space | interval mentioned above, the dimension between the continuous parts of the contact surface with respect to a 1st inner surface and a 2nd inner surface can be enlarged. For this reason, the surface area of the contact surface is widened, and the correction range of the positional deviation between the end portions in the longitudinal direction of the vertical frame and the horizontal frame can be expanded.

In the frame corner structure of the present invention, the first outer surface and the second outer surface are respectively formed with outer protrusions that come into contact with the inner surfaces of the vertical frame and the horizontal frame, and between the outer protrusions. It is preferable that the recessed part spaced apart from the inclined end surface of the said vertical frame and the said horizontal frame is formed in the located part.
According to such a configuration, the seal pool of the sealing material filled from the gaps between the inclined end faces is formed by the concave portions of the corner blocks in a state where the above-described outer protrusions are in contact with the inner surfaces of the vertical and horizontal frames. it can.

  ADVANTAGE OF THE INVENTION According to this invention, the frame body corner | angular part structure which can form easily the clearance gap for seal filling between the end surfaces in the longitudinal direction of each frame can be provided.

The external appearance figure which shows the curtain wall unit provided with the frame corner | angular part structure which concerns on embodiment of this invention. Sectional drawing along the II-II line | wire shown in FIG. Sectional drawing along the III-III line | wire shown in FIG. The perspective view which shows the frame corner | angular part structure which concerns on the said embodiment. Explanatory drawing which shows the frame body corner | angular part structure which concerns on the said embodiment.

[Configuration of this embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a curtain wall unit 10 having a frame corner structure according to the present embodiment. The curtain wall unit 10 is arranged side by side in the vertical direction to constitute a curtain wall that is an outer wall surface of a building, and partitions the interior and exterior (indoor and outdoor). The building includes a beam and a floor slab supported by the beam, and a suspended ceiling is installed below the floor slab. Each curtain wall unit 10 is suspended from a floor slab.

The curtain wall unit 10 includes a step window including a frame 20 and panels 21 and 22.
The frame body 20 is configured by a framework of an upper frame 30 (horizontal frame), a lower frame 40 (horizontal frame), an invisible eye 50, and left and right vertical frames 60 (60A, 60B) formed of an aluminum extruded profile. Has been. The upper frame 30, the lower frame 40, and the left and right vertical frames 60 (60 </ b> A, 60 </ b> B) are configured as a frame by a frame member 25 having the same cross-sectional shape and a pressing edge 26 that engages with the frame member 25. . The intangible 50 is attached to the left and right vertical frames 60A and 60B.

  The upper frame 30, the blank 50 and the left and right vertical frames 60A, 60B form the upper opening 23, and the lower frame 40, the blank 50 and the left and right vertical frames 60A, 60B have the lower opening 24. Forming. The panel 21 is formed of a single-layer glass panel and is disposed in the opening 23. The panel 22 is formed of a multilayer glass panel and is disposed in the opening 24.

  As shown in FIG. 2, the upper frame 30 includes a frame shape member 25 and a pressing edge 26. The frame shape member 25 has a panel facing piece 251 (outdoor finding piece), each prospective piece 252, 253, an indoor finding piece 254, and an engaging piece 255.

  The panel facing piece 251 is along the direction in which the frame member 25 is found, and an outdoor protrusion 251A to which the gasket 11 that contacts the indoor surface of the panel 21 is mounted is formed on the outdoor surface. Further, an engagement piece portion 255 extends from the panel facing piece portion 251 toward the outdoor side.

  Each prospective piece 252 and 253 is continuous with the panel facing piece 251, respectively. In the upper frame 30, the inner prospective piece 252 is positioned below the outer prospective piece 253. The upper edge portion of the fireproof panel 15 is attached to the indoor side portion of the inner prospective piece 252. Mounting portions 253A and 253B to which the watertight material 12 and the airtight material 13 are respectively attached are formed on the outer prospective piece portion 253. The water-tight material 12 is located outside the air-tight material 13 with an interval for forming an isobaric space with the outdoor side.

  The indoor finding piece 254 is continuous with the prospective pieces 252 and 253. Partition pieces 256 and 257 are continuous with the prospective pieces 252 and 253, and three hollows 28 </ b> A, 28 </ b> B and 28 </ b> C are formed in the frame member 25 by the partition pieces 256 and 257. A corner block 71, which will be described later, is disposed on the hollow 28A located on the outdoor side of the hollow 28B and on the hollow 28C located on the indoor side of the hollow 28B.

  A drain port 31 for draining the water that has entered the above-mentioned isobaric space is formed in a portion located between the mounting portions 253A and 253B in the outer prospective piece portion 253 of the upper frame 30. The water drained from the drain port 31 is drained from the drain port 43 of the lower frame 40 through the upper frame 30 and the hollows 28B of the left and right vertical frames 60A and 60B.

  Here, the watertight material 12 has a fin portion and is mounted on the mounting portion 253A, and the airtight material 13 is mounted on the mounting portion 253B located on the indoor side of the mounting portion 253A. A fitting convex member (not shown) is fitted between the mounting portions 253A and 253B.

  The pressing edge 26 is formed in a substantially L-shaped cross section and is engaged with the engaging piece portion 255. The pressing edge 26 presses the outdoor surface of the panel 21 through a gasket 17 that contacts the outdoor surface of the panel 21.

  As shown in FIG. 2, the lower frame 40 is configured by the frame shape member 25 and the pressing edge 26 described above, and is arranged in the upside down direction with respect to the upper frame 30. A gasket 18 that abuts against the indoor surface of the panel 22 is attached to the outdoor protrusion 251 </ b> A formed on the panel facing piece 251 of the lower frame 40. The gasket 17 attached to the pressing edge 26 of the lower frame 40 is in contact with the outdoor surface of the panel 22. Note that the drain port 31 is not formed in the lower frame 40.

A fitting recess material (not shown) fitted to the fitting convex member of the upper frame 30 is fitted between the mounting portions 253A and 253B of the lower frame 40.
The fin portion of the watertight material 12 of the lower frame 40 is in contact with the fin portion of the watertight material 12 of the upper frame 30, and the airtight material 13 of the lower frame 40 is in contact with the airtight material 13 of the upper frame 30, An isobaric space is formed between the watertight material 12 and the airtight material 13 so as to have the same pressure as the external space.
The outer prospective piece 253 of the lower frame 40 is formed with vent holes 41 and 42 in the indoor side portion and the outdoor side portion with respect to the mounting portion 253A. Moreover, the drainage port 43 along with the ventilation port 41 along the longitudinal direction of the lower frame 40 is formed in the both ends of the outer side prospective piece part 253 of the lower frame 40, and the water which passes each hollow 28B, The water is drained from this drain port 43.

  As shown in FIG. 3, the vertical frames 60 </ b> A and 60 </ b> B are respectively configured by the frame shape member 25 and the pressing edge 26 described above, and are arranged in the opposite directions. The vertical frames 60 </ b> A and 60 </ b> B hold the panel 21 at the upper part of the no-mesh 50 and hold the panel 22 at the lower part of the no-mesh 50. In addition, the drain ports 31 and 43 and the vent holes 41 and 42 are not formed in the vertical frames 60A and 60B.

In FIG. 1, a left upper corner portion 70A (corner portion) is formed by the left end portion of the upper frame 30 and the upper end portion of the vertical frame 60A, and an upper right corner is formed by the right end portion of the upper frame 30 and the upper end portion of the vertical frame 60B. 70B (corner) is formed, and the lower left corner 70C (corner) is formed by the left end of the lower frame 40 and the lower end of the vertical frame 60A. The right end of the lower frame 40 and the lower end of the vertical frame 60B The corner portion 70D (corner portion) on the lower right side is formed by the portion.
Since the structure (frame body corner part structure) of each corner part 70 (70A-70D) is comprised substantially the same as shown in FIG.4,5, 70C of lower left corners are demonstrated and another corner part is demonstrated. Description of 70A, 70B, and 70D is omitted. 4A is a perspective view showing the corner portion 70C, FIG. 4B is a perspective view with the vertical frame 60A removed, and FIG. 5 shows the inside of the vertical frame 60A and the lower frame 40. It is explanatory drawing which shows a certain corner block 71. FIG.

As shown in FIG. 5, an inclined end surface 27 cut at an angle of 45 degrees with respect to the longitudinal direction of each frame shape member 25 is formed at the end portion 25 </ b> A in the longitudinal direction of each frame shape member 25. . The intersecting angle between the longitudinal direction of the vertical frame 60A and the longitudinal direction of the lower frame 40 is 90 degrees, and the inclined end surface 27 is set to an angle obtained by dividing the intersecting angle in half.
FIG. 5 shows the end portions 25A of the vertical frame 60A and the lower frame 40, and these inclined end surfaces 27 are arranged to face each other with a gap C for filling the sealing material.
The gap C is formed by corner blocks 71 (71A, 71B) disposed inside the corner portion 70C. As shown in FIG. 4, the corner block 71A is disposed in the hollow 28A, and the corner block 71B is disposed in the hollow 28C.

  As shown in FIGS. 4 and 5, the corner block 71 </ b> A includes a first insertion piece 72, a second insertion piece 73 along the direction intersecting the longitudinal direction of the first insertion piece 72, And a contact surface 74 constituting a contact portion formed at the intersection of the one insertion piece portion 72 and the second insertion piece portion 73.

The first insertion piece 72 is inserted into the hollow 28A from the end 25A of the vertical frame 60A, and is bolted to the outer prospective piece 253 of the vertical frame 60A by the bolt 16.
The first insertion piece 72 includes a first inner surface 721 that contacts the inner surface of the inner prospective piece 252 of the vertical frame 60A, and a first outer surface 722 that contacts the inner surface of the outer expected piece 253 of the vertical frame 60A. And a first inner surface 721 and a leading end surface 723 continuous with the first outer surface 722.
The first insertion piece 72 extends along the vertical direction, and is hollowed out. The distal end surface 723 is inclined with respect to the longitudinal direction of the first insertion piece 72 so that the continuous portion with respect to the first outer side surface 722 is located above the continuous portion with respect to the first inner side surface 721.

  On the first inner side surface 721, a plurality of inner protrusions 721A that contact the inner surface of the inner prospective piece 252 of the vertical frame 60A are formed in the vertical direction. Of the plurality of inner protrusions 721A, the portion of the first inner side surface 721 located between the inner protrusion 721A located at the lowermost part and the contact surface 74 is against the inner surface of the inner prospective piece 252 of the vertical frame 60A. Are arranged at intervals.

  The first outer surface 722 is formed with a plurality of outer protrusions 722A in contact with the inner surface of the outer prospective piece 253 of the vertical frame 60A along the vertical direction.

The second insertion piece 73 is inserted into the hollow 28 </ b> A from the end 25 </ b> A of the lower frame 40, and is bolted to the outer prospective piece 253 of the lower frame 40 by the bolt 16.
The second insertion piece 73 includes a second inner surface 731 that contacts the inner surface of the inner prospective piece 252 of the lower frame 40, and a second outer surface 732 that contacts the inner surface of the outer expected piece 253 of the lower frame 40. , A second inner side surface 731 and a second outer side surface 732 and a leading end surface 733.
The second insertion piece 73 extends along the left-right direction and is hollowed out. The distal end surface 733 is inclined with respect to the longitudinal direction of the second insertion piece portion 73 so that the continuous portion with respect to the second outer side surface 732 is located on the right side in FIG. ing.

  On the second inner side surface 731, a plurality of inner protrusions 731 </ b> A that abut on the inner surface of the inner prospective piece 252 of the lower frame 40 are formed along the left-right direction. Of the plurality of inner protrusions 731A, the portion of the second inner side surface 731 positioned between the inner protrusion 731A located on the leftmost side in FIG. 5 and the contact surface 74 is the inner prospective piece 252 of the lower frame 40. It arrange | positions at intervals with respect to the inner surface.

  The second outer surface 732 is formed with a plurality of outer protrusions 732A that contact the inner surface of the outer prospective piece 253 of the lower frame 40 along the left-right direction.

  In the corner block 71A, a portion located between the outer protrusions 722A and 732A is formed with a recess 75 positioned away from each inclined end surface 27 in the outer prospective piece 253 of the vertical frame 60A and the lower frame 40. .

  The contact surface 74 is continuous with the first inner side surface 721 and the second inner side surface 731 described above. The contact surface 74 is inclined at an equal inclination angle with respect to the longitudinal direction of the first insertion piece portion 72 and the second insertion piece portion 73, and is along the inclined end surfaces 27 of the vertical frame 60 </ b> A and the lower frame 40. It is arranged perpendicular to the direction.

  The corner block 71B is formed in the same manner as the corner block 71A and disposed on the hollow 28C.

The contact surfaces 74 of the corner blocks 71 </ b> A and 71 </ b> B have a vertical frame in a state where the first insertion piece 72 is inserted into the vertical frame 60 </ b> A and the second insertion piece 73 is inserted into the lower frame 40. 60A and the end 25A of the lower frame 40, in this embodiment, are in contact with the acute angle edge of the inclined end surface 27. In this way, the contact surface 74 contacts the end portion 25A, whereby the mutual positions of the vertical frame 60A and the lower frame 40 are positioned, and a gap C is formed between the inclined end surfaces 27 in each inner prospective piece portion 252 to be maintained. I'm leaning.
Further, the outer protrusions 722A and 732A of the corner blocks 71A and 71B abut against the inner surface of each outer prospective piece 253, so that a gap C is formed and maintained between the inclined end surfaces 27 of the respective outer prospective pieces 253. ing.
Furthermore, since the corner block 71A is disposed adjacent to the panel facing piece portions 251 of the vertical frame 60A and the lower frame 40, a gap C is also formed on the inclined end surface 27 of these panel facing piece portions 251. On the other hand, since the corner block 71B is disposed adjacent to the indoor finding piece 254 of the vertical frame 60A and the lower frame 40, a gap C is also formed on the inclined end surface 27 between the indoor finding pieces 254. .

  As described above, since the gap C is formed over the entire circumference of the inclined end surface 27 of the vertical frame 60A and the lower frame 40, the entire circumference of the corner portion 70C can be sealed by filling the gap C with the sealing material. In addition, the sealing material filled in the gap C between the respective outer prospective piece portions 253 remains in the recess 75.

[Effect of this embodiment]
(1) In the present embodiment, the frame corner structure of the curtain wall unit 10 includes the frame 20 that is a frame of the vertical frames 60A and 60B and the horizontal frames (the upper frame 30 and the lower frame 40), the upper frame 30, and the lower frame. The frame 40 and the corner block 71 arranged inside the vertical frames 60A and 60B, and the end 25A in the longitudinal direction of the upper frame 30, the lower frame 40 and the vertical frames 60A and 60B are the upper frame 30 and the lower frame. 40 and the vertical frames 60A and 60B, and the inclined end surfaces 27 are inclined to face each other, and the corner block 71 includes a first insertion piece 72 and a longitudinal direction of the first insertion piece 72. The second insertion piece 73 and the first insertion piece 72 along the direction intersecting with the first insertion piece 72 are inserted into the vertical frame 60A (60B), and the second insertion piece 73 is connected to the upper frame 30 (lower frame). 40) In the state of being inserted into the end 25A, It characterized in that it has an abutment surface 74 which forms a gap C I between the inclined end face 27.
Because of the above configuration, it is necessary to interpose a spacer or the like separate from the corner block 71 between the inclined end surfaces 27 of the upper frame 30 and the vertical frames 60A and 60B and between the inclined end surfaces of the lower frame 40 and the vertical frames 60A and 60B. In addition, the corner block 71 is merely disposed inside the upper frame 30, the lower frame 40, and the left and right vertical frames 60A and 60B, and the contact surface 74 hits each end portion 25A so that the seal material is interposed between the inclined end surfaces 27 facing each other. The gap C can be easily formed.
Furthermore, in the present embodiment, the following effects can be exhibited.
(2) In the said embodiment, the 1st insertion piece part 72 has the 1st inner surface 721 and the 1st outer surface 722 which contact | abut to the inner surface of 60 A (60B) vertical frame, and the 2nd insertion piece part 73 is. Has a second inner side surface 731 and a second outer side surface 732 that contact the inner surface of the upper frame 30 (lower frame 40), and the contact surface 74 is continuous with the first inner side surface 721 and the second inner side surface 731. The contact surface 74 is configured to be inclined with respect to the longitudinal direction of the first insertion piece portion 72 and the second insertion piece portion 73.
For this reason, the contact surface 74 inclined with respect to the longitudinal direction of the first insertion piece portion 72 and the second insertion piece portion 73 in a state where the corner block 71 is disposed in the frame body 20 is provided in each end portion 25A. Abut. For this reason, the gap C can be formed between the inclined end surfaces 27 without providing the corner block 71 with protrusions interposed between the inclined end surfaces 27. Further, the protrusions, spacers, and the like are interposed in the gap C so as not to obstruct the filling and installation of the sealing material.
(3) In the embodiment, the inclination angle of the inclined end surface 27 with respect to the longitudinal direction of the vertical frame 60A (60B) and the inclination angle of the inclined end surface 27 with respect to the longitudinal direction of the upper frame 30 (lower frame 40) are the vertical frame 60A ( 60B) and the upper frame 30 (lower frame 40) with an angle of intersection in the longitudinal direction divided by half, and the contact surface 74 is arranged orthogonal to the direction along the inclined end surface 27.
For this reason, the positioning of the inclined end surfaces 27 can be assisted so that the contact angles of the end portions 25A with respect to the contact surface 74 become the same angle by the contact of the end portions 25A with the contact surface 74. .
(4) In the above-described embodiment, the first inner side surface 721 and the second inner side surface 731 have the inner protrusions 721A and 731A that contact the inner surfaces of the vertical frame 60A (60B) and the upper frame 30 (lower frame 40), respectively. Of the first inner side surface 721 and the second inner side surface 731 that are formed and located between the inner protrusions 721A, 731A and the contact surface 74, the vertical frame 60A (60B) and the upper frame 30 (lower frame 40) It arrange | positions at intervals with respect to the inner surface.
For this reason, compared with the case where there is no space | interval mentioned above, the dimension between the continuous parts of the contact surface 74 with respect to the 1st inner surface 721 and the 2nd inner surface 731 can be enlarged. Thereby, the surface area of the contact surface 74 is expanded, and the correction range of the positional deviation between the end portions 25A can be expanded.
(5) In the above-described embodiment, the first outer surface 722 and the second outer surface 732 have outer protrusions 722A and 732A that contact the inner surfaces of the vertical frame 60A (60B) and the upper frame 30 (lower frame 40), respectively. A recessed portion 75 that is spaced from each inclined end surface 27 is formed in a portion that is formed and located between the outer protrusions 722A and 732A.
Therefore, the gaps between the inclined end surfaces 27 are formed by the concave portions 75 of the corner block 71 in a state where the outer protrusions 722A and 732A are in contact with the inner surfaces of the vertical frame 60A (60B) and the upper frame 30 (lower frame 40). A seal pool of a sealing material filled from C can be formed.

[Modification]
The present invention is not limited to the configuration described in the above embodiment, and modifications within a range in which the object of the present invention can be achieved are included in the present invention.
For example, in the above-described embodiment, the contact surface 74 has the same inclination angle with respect to the longitudinal direction of the vertical frame 60A (60B) and the upper frame 30 (lower frame 40). May be.

  In the above-described embodiment, the contact portion that forms the gap C between the inclined end surfaces 27 is configured by the contact surface 74 formed on the corner block 71. However, the present invention is not limited thereto, and is interposed between the inclined end surfaces 27, for example. You may form a protrusion in the corner block 71 by making a protrusion into the said contact part.

In the said embodiment, although the 1st insertion piece part 72 and the 2nd insertion piece part 73 are thinned and formed in the hollow, they may be made solid without being thinned.
The portion between the inner protrusion 721A and the contact surface 74 of the first inner surface 721 and the portion between the inner protrusion 731A and the contact surface 74 of the second inner surface 731 are the vertical frame 60A (60B) and the upper part. Although it arrange | positions at intervals with respect to the inner surface of the frame 30 (lower frame 40), it is not restricted to this, The inner surface of the vertical frame 60A (60B) and the upper frame 30 (lower frame 40) is not spaced apart. You may contact.
Further, the configurations of the inner protrusions 721A and 731A and the outer protrusions 722A and 732A are omitted, and the entire surfaces of the first inner surface 721 and the first outer surface 722 are in contact with the inner surface of the vertical frame 60 (60B). The entire inner surface 731 and the second outer surface 732 may abut against the inner surface of the upper frame 30 (lower frame 40).

  In the embodiment, the recess 75 is formed between the outer protrusions 722A and 732A, but this configuration may be omitted.

  In the above embodiment, the curtain wall unit 10 has been described as having the frame body corner structure described above. However, the curtain wall unit 10 may be configured as a fitting such as a knockdown curtain wall or a window.

  DESCRIPTION OF SYMBOLS 10 ... Curtain wall unit 11, 17, 18 ... Gasket, 12 ... Watertight material, 13 ... Airtight material, 15 ... Fireproof panel, 16 ... Bolt, 20 ... Frame body, 21,22 ... Panel, 23, 24 ... Opening, 25 ... Frame shape member, 25A ... End, 26 ... Pushing edge, 27 ... Inclined end face, 28A, 28B, 28C ... Hollow, 30 ... Upper frame, 31,43 ... Drain port, 40 ... Lower frame, 41,42 ... Ventilation Mouth, 50 ... seamless, 60 (60A, 60B) ... vertical frame, 70 (70A-70D) ... corner, 71 (71A, 71B) ... corner block, 72 ... first insertion piece, 73 ... second Insertion piece part 74 ... Abutting surface 75 ... Recessed part 251 ... Panel facing piece part 251A ... Outdoor projection part 252 ... Inside prospective piece part 253 ... Outer prospective piece part 253A, 253B ... Mounting part 254 ... Indoor finding piece, 255 ... engagement Part, 256, 257 ... partition piece part, 721 ... first inner side, 721A, 731A ... inner projection, 722 ... first outer side, 722A, 732A ... outer projection, 723, 733 ... tip end, 731 ... first Two inner side surfaces, 732 ... second outer side surface, C ... gap.

Claims (5)

It is constituted by a frame body that frames a vertical frame and a horizontal frame, and a corner block arranged inside the vertical frame and the horizontal frame,
Ends in the longitudinal direction of the vertical frame and the horizontal frame have inclined end surfaces that are inclined with respect to the longitudinal direction of the vertical frame and the horizontal frame and face each other.
The corner block includes a first insertion piece, a second insertion piece along a direction intersecting a longitudinal direction of the first insertion piece, and the first insertion piece within the vertical frame. And with the second insertion piece inserted into the horizontal frame, the vertical frame and the end of the horizontal frame in the longitudinal direction hit the end between the vertical frame and the inclined end surface of the horizontal frame. A frame corner structure characterized by having a contact part for forming a gap. In the frame corner structure according to claim 1,
The first insertion piece portion has a first inner surface and a first outer surface that contact the inner surface of the vertical frame,
The second insertion piece has a second inner surface and a second outer surface that contact the inner surface of the horizontal frame,
The contact portion is constituted by a contact surface continuous with the first inner surface and the second inner surface,
The said contact surface inclines with respect to the longitudinal direction of said 1st insertion piece part and said 2nd insertion piece part. Frame body corner | angular part structure characterized by the above-mentioned. In the frame corner structure according to claim 2,
The inclination angle of the inclined end surface of the vertical frame with respect to the longitudinal direction of the vertical frame and the inclination angle of the inclined end surface of the horizontal frame with respect to the longitudinal direction of the horizontal frame are the intersection angles of the longitudinal direction of the vertical frame and the horizontal frame. The angle divided by half,
The abutment surface is arranged perpendicular to the direction along the inclined end surface. In the frame corner structure according to claim 2 or 3,
The first inner surface and the second inner surface are respectively formed with inner protrusions that contact the inner surfaces of the vertical frame and the horizontal frame,
Of the first inner side surface and the second inner side surface, a portion located between the inner protrusion and the contact surface is disposed with a space from the inner surfaces of the vertical frame and the horizontal frame. A frame corner structure characterized by the following. In the frame corner structure according to any one of claims 2 to 4,
The first outer surface and the second outer surface are respectively formed with outer protrusions that contact the inner surfaces of the vertical frame and the horizontal frame,
A concave portion spaced from the inclined end surfaces of the vertical frame and the horizontal frame is formed in a portion located between the outer protrusions.

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