JP2014190127A - Fitting structure for opening frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting structure capable of easily fitting an opening frame from an indoor side.SOLUTION: In a fitting structure 1 for an opening frame 4, the opening frame 4 includes a vertical frame 7 having a panel surface abutment piece 11 abutted to a surface P1a on an indoor side of a wall panel P1 and a panel header surface abutment piece 12 abutted to a header surface P1b of the wall panel P1, an L-shaped upper metal fitting 14 fitted to an upper part of the panel surface abutment piece 11 and a lower surface 3b of a second horizontal member 3, and a lower metal fitting 13 fixed to a lower part of the panel surface abutment piece 11 and abutted and fitted to a vertical flange 6b of an L-shaped first backing steel member 6 from the indoor side.

Description

  The present invention relates to an opening frame mounting structure for mounting an opening frame between wall panels.

  Conventionally, there is JP-A-1-284647 as a technology in such a field. This publication discloses an opening frame mounting structure. An angle plate is attached to the upper beam of the building frame, and the vertical plate of the angle plate is suspended vertically. An angle plate is attached to the lower beam of the building frame, and the vertical plate of the angle plate stands upright. In such a building frame, it is attached so that the back surface of the vertical frame of the opening frame is in contact with the vertical plate of the angle plate.

JP-A-1-284647

  Since the opening frame is used to attach a window frame or a wall panel arranged around the window frame, the opening frame is arranged outside the beam. Then, when the worker in the room constructs the mounting structure of Patent Document 1, it is necessary to work to once open the opening frame. Then, the opening frame that has come out is pulled toward the indoor side, and the vertical frame is pressed against the angle plate and fixed to the upper beam and the lower beam. In this way, the work of fixing the opening frame while pulling it may have poor workability.

  Further, when the opening frame is taken out, wall panels may be already attached to the left and right sides of the region where the opening frame is attached. In this case, there is a possibility that it is difficult to take out the opening frame from between the wall panels. In addition, depending on the shape of the opening frame, the opening frame may not be able to come out from between the wall panels.

  Therefore, the present invention provides an opening frame mounting structure in which it is easy to mount the opening frame from the indoor side.

  In the present invention, a second horizontal member to which a second base steel material is fixed is disposed on a first horizontal member to which the first base steel material is fixed, and the first horizontal member and the second horizontal member are arranged. The intermediate wall panel is attached to the first horizontal member via the first base steel material and is attached to the second horizontal member via the second base steel material, and an opening frame is disposed between the wall panels. In the frame mounting structure, the opening frame includes a vertical frame including a panel surface contact piece that contacts the indoor surface of the wall panel and a panel facet contact piece that contacts the facet of the wall panel, and a panel surface contact. The L-shaped upper mounting bracket attached to the upper part of the piece and the lower surface of the second horizontal member and the lower part of the panel surface contact piece are fixed to the vertical flange of the L-shaped first base steel material from the indoor side. And a lower mounting bracket attached in contact with each other.

  According to the mounting structure of the opening frame described above, the panel surface abutting piece abuts against the indoor surface of the wall panel and the panel small edge surface abutting piece abuts against the small edge surface of the wall panel. I do. By attaching the vertical flange of the upper mounting bracket to the upper part of the panel surface contact piece of the vertical frame and the horizontal flange to the lower surface of the second horizontal member against the vertical frame pressed against the wall panel Is fixed to the upper second horizontal member. A lower mounting bracket is fixed to the lower portion of the vertical frame. When the panel surface abutting piece comes into contact with the indoor surface of the wall panel, the lower mounting bracket contacts and is fixed from the indoor side to the vertical flange of the first base steel material. Therefore, it is possible to easily attach the opening frame between the wall panels without disposing the opening frame from the room side.

Further, the vertical flange of the first base steel material is provided with a horizontally long first screw through hole extending in the horizontal direction, and the bottom mounting bracket is provided with a vertically long second screw through hole extending in the vertical direction. Yes.
According to this configuration, the lower mounting bracket is fastened to the base steel material by the screws inserted through the first screw through hole and the second screw through hole. Here, since the first screw through hole is a horizontally long hole, the first base steel material is movable in the horizontal direction with respect to the screws inserted through the first screw through hole. Further, since the second screw through hole is a vertically long hole, the lower mounting bracket is movable in the vertical direction with respect to the screws inserted through the second screw through hole. Therefore, since the lower mounting bracket can move in the horizontal direction and the vertical direction with respect to the first base steel material, the margin for adjusting the position of the opening frame relative to the first base steel material can be increased.

Further, the lower mounting bracket is fixed to the panel surface abutting piece so as to protrude in the horizontal direction from the panel facet abutting piece.
According to this configuration, since the second screw through hole of the lower mounting bracket can be provided by shifting in a direction protruding in the horizontal direction from the panel small face contact piece, the first screw through hole of the base steel material is provided on the wall. It can be provided at a position corresponding to the facet of the panel. Therefore, the mark for alignment of the wall panel and the mark for the first screw through hole of the first base steel material can be made common to save the work of marking.

The second screw through holes are arranged in parallel in the horizontal direction.
According to such a structure, when attaching one lower attachment bracket fixed to one vertical frame to the base steel material, one second screw through hole is used. Further, when the other lower mounting bracket fixed to the other vertical frame is attached to the base steel material, the other second screw through hole is used. Therefore, it is possible to share the lower mounting bracket that is fixed to each vertical frame.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment structure of the opening frame with which it is easy to attach an opening frame from the indoor side is provided.

It is a perspective view which shows the attachment structure of an opening frame. It is a perspective view which shows a mode that the opening frame was attached. It is a perspective view which shows an opening frame. It is a top view which shows the attachment structure of a vertical frame. It is sectional drawing along the VV line of FIG. (A) is a principal part expanded sectional view which shows the attachment structure of the upper part of a vertical frame, (b) is a principal part enlarged sectional view which shows the attachment structure of the lower part of a vertical frame. (A) is a front view of a lower attachment metal fitting, (b) is sectional drawing which followed the VII-VII line of (a). It is a principal part enlarged front view which shows a mode that the lower attachment metal fitting was attached to the 1st base steel material. It is sectional drawing which shows the attachment structure of a lintel wall panel and a waist wall panel. It is a principal part expanded sectional view which shows the attachment structure of a wall panel and a lintel wall panel. (A) is a principal part expanded sectional view which shows the attachment structure of a lintel wall panel, (b) is a principal part expanded sectional view which shows the attachment structure of a waist wall panel. (A)-(c) is sectional drawing which shows the state which attaches an opening frame. (A)-(d) is sectional drawing which shows the state which attaches an opening frame. (A)-(e) is a front view which shows the state which attaches an opening frame. (A) is sectional drawing which shows the state of the opening frame in the process of constructing an opening frame, (b) is sectional drawing which shows another state of the opening frame in the process of constructing an opening frame. (A) is a perspective view which shows the state of the volt | bolt in the process of temporarily fixing an opening frame, (b) is a side view of (a). (A) is sectional drawing which shows the state which attaches the waist wall panel which concerns on a comparative example, (b) is sectional drawing which shows the state which attaches the waist wall panel which concerns on this embodiment. (A) is sectional drawing which shows the state before pushing down an opening frame, (b) is sectional drawing which shows the state after pushing down an opening frame. (A)-(c) is sectional drawing which shows the state of the process of attaching an upper attachment metal fitting. (A) And (b) is sectional drawing for demonstrating the effect of the attachment structure of an opening frame.

  Hereinafter, a preferred embodiment of the mounting structure of the opening frame will be described in detail. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIGS. 1 and 2, the mounting structure 1 for the opening frame 4 is provided between a wall panel P <b> 1 disposed between a lower first horizontal member 2 and an upper second horizontal member 3. In the opening area S, an opening frame 4 for fixing the window frame W, the lintel wall panel P2 and the waist wall panel P3 is attached. The wall panel P1, the lintel wall panel P2, and the waist wall panel P3 are ALC panels. For example, the wall panel P1 has dimensions of a height of 3000 mm, a width of 600 mm, and a thickness of 100 mm.

  2 and 5, illustration of the lintel wall panel P2 and the waist wall panel P3 is omitted. Further, the terms “outside” and “inside” used in the description of the positional relationship between the parts correspond to the outside and inside of the building.

  As shown in FIG. 2, the opening frame 4 has two vertical frames 7 whose upper part is attached to the upper second horizontal member 3 and whose lower part is attached to the lower first base steel material 6. Yes. Between the vertical frames 7, two horizontal frames 8 having both ends welded to the vertical frame 7 are fixed.

  The window frame W is fitted in a region surrounded by a vertical frame 7 arranged on the left and right and a horizontal frame 8 arranged on the top and bottom. The lintel wall panel P2 has an upper portion attached to the upper second horizontal member 3 and a lower portion attached to the upper horizontal frame 8. The waist wall panel P3 has an upper portion attached to the lower horizontal frame 8 and a lower portion attached to the lower first horizontal member 2.

  In the mounting structure 1 of the opening frame 4, the upper second horizontal member 3 is disposed on the lower first horizontal member 2. The first horizontal member 2 on the lower side and the second horizontal member 3 on the upper side are wooden beams in a wooden building, and the first horizontal member 2 on the lower side and the second horizontal member 3 on the upper side are arranged. Each has a floor 5 (see FIG. 1).

  Here, the term “woody horizontal material” refers to a horizontal material made only of wooden material, a horizontal material in which the wooden material is assembled by means such as bonding or screwing, and steel materials such as H-shaped steel (gathered) Horizontal material covered with wood, and a multi-layered horizontal material with a non-woody (non-combustible) layer and a woody material (the outermost layer is made of non-woody material even if it is woody material) Horizontal materials with wooden materials protected by fire-resistant coating materials, horizontal structural materials with wooden materials covered with fire-resistant materials, and the fire-resistant materials covered with wooden materials (gathered) There is a horizontal member in which a main structural member made of a steel material such as an H-shaped steel is embedded in the center of the material.

  A lower first base steel material 6 is fixed to the lower first horizontal member 2, and an upper second base steel material 9 is fixed to the upper second horizontal member 3. The wall panel P1 is attached to the lower first horizontal member 2 via the lower first base steel material 6 and attached to the upper second horizontal member 3 via the upper second base steel material 9. It has been.

  As shown in FIG. 3, the opening frame 4 has a cross-like shape when viewed from the front, and is configured by welding an L-shaped angle material. The opening frame 4 has two vertical frames 7 juxtaposed in the horizontal direction, and each vertical frame 7 extends from the lower first horizontal member 2 to the upper second horizontal member 3 ( 2) and are separated from each other in the horizontal direction.

  As shown in FIG. 4, the panel surface contact piece 11 which is a piece of the L-shaped vertical frame 7 is in contact with the indoor surface P1a of the wall panel P1. The panel small edge surface contact piece 12 which is the other piece of the vertical frame 7 stands from the edge of the panel surface contact piece 11 and is in contact with the small edge surface P1b of the wall panel P1. That is, the vertical frame 7 is disposed so as to cover the corners on the indoor side of the wall panel P1. According to such an arrangement of the vertical frame 7, the inner width D1 of the wall panel P1 is smaller than the found width D2 of the opening frame 4, and the reduction of the opening area of the opening region S is suppressed. A larger window frame W can be arranged.

  As shown in FIG. 3, a vertically long screw through hole 11 a is provided in the upper part of the panel surface contact piece 11. A lower mounting bracket 13 for fixing the vertical frame 7 to the lower first base steel material 6 is welded to the lower portion of the panel surface contact piece 11.

  Between the left and right vertical frames 7, two horizontal frames 8 are spanned apart in the vertical direction. Both ends of the upper horizontal frame 8 are welded to the vertical frame 7 so that the vertical flange 8b extends upward from the horizontal flange 8a. Both ends of the lower horizontal frame 8 are welded to the vertical frame 7 so that the vertical flange 8b extends downward from the horizontal flange 8a.

  As shown in FIG. 5, the opening frame 4 is attached to the lower first base steel material 6 and the upper second horizontal member 3. Further, a gap is formed between the wall panel P <b> 1 with which the vertical frame 7 abuts and the upper second horizontal member 3.

  The lower first base steel material 6 is a steel angle member extending in parallel with the lower first horizontal member 2, and is formed by a lag screw 10 on the horizontal upper surface 2 a of the lower first horizontal member 2. It has a fixed horizontal flange 6a, and a vertical flange 6b that stands vertically upward from the edge of the horizontal flange 6a. The vertical flange 6b is in a position slightly protruding outward from the upper surface 2a of the lower first horizontal member 2. By adjusting the amount of protrusion of the vertical flange 6b when the lower first base steel material 6 is installed, the installation position of the wall panel P1 and the like can be adjusted in and out in the horizontal direction. Since the upper second base steel material 9 has the same configuration as the first base steel material 6, the description thereof is omitted.

  As shown in FIG. 6A, the upper portion of the opening frame 4 is fixed to the lower surface 3b of the upper second horizontal member 3 by an upper mounting bracket 14 that is an L-shaped piece angle.

  As shown in FIG. 3, the vertical flange 16 of the upper mounting bracket 14 has a horizontally long screw through hole 16 a extending in the horizontal direction, and is in contact with the panel surface contact piece 11 of the vertical frame 7 (FIG. 3). 6 (a)). The vertical flange 16 of the upper mounting bracket 14 is screwed into the bolt B1 inserted into the screw through hole 11a provided in the panel surface contact piece 11 of the vertical frame 7 and the screw through hole 16a of the vertical flange 16, and the bolt B1. The nut N1 is fixed to the vertical frame 7. Here, since the screw through hole 11a of the panel surface abutting piece 11 is vertically long and the screw through hole 16a of the upper mounting bracket 14 is horizontally long, the margin for adjusting the position of the upper mounting bracket 14 with respect to the vertical frame 7 in the vertical direction is adjusted. Can be bigger.

  The horizontal flange 19 of the upper mounting bracket 14 has two screw through holes 19a arranged side by side in the horizontal direction, and is in contact with the lower surface 3b of the upper second horizontal member 3 (see FIG. 6A). ). The horizontal flange 19 is fixed to the upper second horizontal member 3 by screwing the lag screw 21 into the upper second horizontal member 3 through the screw through hole 19a. Here, since the hole diameter of the screw through hole 19a of the horizontal flange 19 is substantially the same as the neck diameter of the lag screw 21, the displacement of the upper mounting bracket 14 in the out-of-plane direction can be suppressed.

  As shown in FIG. 6B, the lower part of the opening frame 4 is fixed to the vertical flange 6 b of the lower first base steel material 6 by the lower mounting bracket 13.

  As shown in FIGS. 7A and 7B, the lower mounting bracket 13 is a strip-shaped bracket extending in the vertical direction. An upper fixing portion 22 welded to the panel surface abutting piece 11 is provided on the upper portion of the lower mounting bracket 13. A lower fixing portion 23 that is attached to the lower first base steel material 6 is provided at the lower portion of the lower mounting bracket 13. In the lower fixing portion 23, vertically long screw through holes 23a are juxtaposed in the horizontal direction so as to be symmetrical.

  A bent portion 24 is formed between the upper fixing portion 22 and the lower fixing portion 23. With such a shape, as shown in FIG. 6B, the lower first fixing steel member 6 and the lower first fixing steel member 6 are brought into contact with the vertical flange 6 b of the lower first supporting steel material 6. The opening frame 4 can be arranged outside the first horizontal member 2 on the lower side.

  In the lower mounting bracket 13, the lower fixing portion 23 is in contact with the vertical flange 6 b of the first base steel material 6 from the indoor side to the lower side. The lower mounting bracket 13 includes a screw through hole 26 (see FIG. 3) provided in the vertical flange 6b of the lower first base steel material 6 and a screw through hole 23a in the lower fixing portion 23 (see FIG. 7 (a)). ) To the lower first base steel material 6 by screwing the nut N2 into the bolt B2 that is inserted from the outdoor side.

  Here, it is preferable that the bolt B <b> 2 is a root angle bolt in which the cross-sectional shape of the neck is rectangular and one side of the neck is substantially equal to the width of the screw through hole 26. In a state where the neck of the bolt B2 is fitted in the screw through hole 26, when the nut N2 is screwed, the rotation of the bolt B2 is prevented.

  Further, as shown in FIG. 3, the screw through hole 23a of the lower mounting bracket 13 is vertically long and the screw through hole 26 of the lower first base steel material 6 is horizontally long. 6 can be increased in the vertical and horizontal position adjustment positions of the lower mounting bracket 13 with respect to 6.

  As shown in FIG. 8, the lower mounting bracket 13 is welded to the panel surface contact piece 11 so as to protrude in a horizontal direction from the panel facet contact piece 12. That is, it is welded while being shifted to the opening region S side with respect to the vertical frame 7.

  The lower mounting bracket 13 is provided with a mark 22a indicating a horizontal mounting position on the panel surface abutting piece 11, and a mark 22b indicating a vertical mounting position on the panel surface abutting piece 11. The mark 22a is provided on the outer side by the plate thickness of the panel edge surface contact piece 12 from the longitudinal central axis A of the screw through hole 23a. The mark 22 b is a bent portion between the bent portion 24 and the upper fixed portion 22. The lower mounting bracket 13 is welded to the vertical frame 7 so that the mark 22a is aligned with the panel edge contact piece 12 and the mark 22b is aligned with the lower end 7a of the vertical frame 7.

  By providing such marks 22a and 22b, the accuracy of the mounting position of the lower mounting bracket 13 with respect to the vertical frame 7 can be increased, and the mounting workability can be improved.

  Further, as shown in FIG. 3, the lower mounting bracket 13 is welded while being shifted inward in each of the vertical frames 7. And when fixing the opening flame | frame 4 to the lower 1st base steel material 6, the screw through-hole 23a inside is utilized.

  As shown in FIG. 9, the lintel wall panel P <b> 2 has an upper portion fixed to the upper second horizontal member 3 and a lower portion fixed to the upper horizontal frame 8 of the opening frame 4.

  As shown in FIG. 10, a mounting bracket 27 is fixed to the vertical flange 9 b of the upper second base steel material 9. A lower fixing portion 27b for attaching the lintel wall panel P2 is provided at the lower portion of the mounting bracket 27. The lintel wall panel P2 is fixed to the lower fixing portion 27b by a bolt B3 inserted in a bolt hole (not shown) provided in the lower fixing portion 27b and a planting nut N3.

  Further, an upper stage fixing portion 27a for fixing the lower portion of the wall panel P1 is provided on the upper portion of the mounting bracket 27. The lower part of the wall panel P1 is fixed to the upper stage fixing part 27a by a bolt B4 inserted in a bolt hole (not shown) provided in the upper stage fixing part 27a and a planting nut N4.

  Between the upper stage fixing part 27a and the lower stage fixing part 27b, a flange fixing part 33 for fixing the mounting bracket 27 to the vertical flange 9b of the upper second base steel material 9 is provided. The flange fixing portion 33 is fixed to the vertical flange 9b by a bolt B5 inserted from the outdoor side into a bolt hole (not shown) provided in the flange fixing portion 33 and a nut N5 screwed to the bolt B5. . Since this flange fixing part 33 bulges indoors with respect to the upper fixing part 27a and the lower fixing part 27b, the wall panel P1 attached to the upper fixing part 27a and the lintel attached to the lower fixing part 27b. Wall panel P2 is arrange | positioned in the position spaced apart to the outdoor side with respect to the 2nd upper base steel material 9 of the upper side. That is, a predetermined gap is formed between the indoor surface P1a of the wall panel P1 and the vertical flange 9b of the upper second base steel material 9.

  It should be noted that a screw (not shown) may be attached to the flange fixing portion 33 as an anti-rotation process for the mounting bracket 27. By this anti-rotation process, the rotational position of the mounting bracket 27 around the bolt B5 is fixed, and as a result, the positions of the wall panel P1 and the waist wall panel P3 are securely fixed.

  A self-weight receiving bracket 37 is attached to the vertical flange 9 b of the upper second base steel material 9. The self-weight bracket 37 has a horizontal flange 37a extending in the horizontal direction and a vertical flange 37b fixed to the vertical flange 7b. When the lower end surface P1c of the wall panel P1 contacts the horizontal flange 37a, the wall panel P1 is positioned in the vertical direction, and the weight of the wall panel P1 is supported by the weight receiving bracket 37.

  As shown in FIG. 11A, the lower part of the lintel wall panel P2 has an indoor surface P2a abutting against the vertical flange 8b of the upper horizontal frame 8 and a lower end surface P2b of the upper horizontal frame 8. It is in contact with the horizontal flange 8a. With this configuration, the lintel wall panel P2 is positioned in the vertical direction, and the weight of the lintel wall panel P2 is supported by the upper horizontal frame 8. One end side of a mounting bracket 38 in the form of a rod is fixed to the vertical flange 8b of the upper horizontal frame 8, and the other end side of the mounting bracket 38 is fixed to the lintel wall panel P2 by a planting nut N6 and a bolt B6. .

  As shown in FIG. 9, the upper part of the waist wall panel P <b> 3 is fixed to the lateral frame 8 on the lower side of the opening frame 4, and the lower part is fixed to the first base steel material 6 on the lower side.

  As shown in FIG. 11 (b), the upper part of the waist wall panel P3 is such that the indoor side surface P3a abuts against the vertical flange 8b of the lower horizontal frame 8 and the upper end surface P3c is the lower horizontal frame 8. The waist wall panel P3 is positioned in the vertical direction by contacting the horizontal flange 8a. One end side of a mounting bracket 39 having a rod shape is fixed to the vertical flange 8b of the lower horizontal frame 8, and the other end side of the mounting bracket 39 is fixed to the waist wall panel P3 by a planting nut N7 and a bolt B7.

  As shown in FIG. 9, the lower part of the waist wall panel P <b> 3 is formed by bolts B <b> 8 and planting nuts N <b> 8 with respect to the upper fixing part 27 a of the mounting bracket 27 fixed to the lower first base steel material 6. The lower part of the waist wall panel P3 is fixed to the first base steel material 6.

  Next, the construction method of the attachment structure 1 of the opening frame 4 will be described. 12 (a) and 14 (a), the floor 5 and the lower first base steel material 6 are attached to the lower first horizontal member 2, and the upper second horizontal member 3 is attached. The floor 5 and the upper second base steel material 9 are attached. A wall panel P <b> 1 is attached between the lower first base steel material 6 and the upper second base steel material 9. At this time, a temporary scaffold (not shown) may be arranged at a distance of several tens of centimeters from the wall panel P1 to the outdoor side.

  Next, construction for attaching the opening frame 4 will be described.

  First, in the place where the mounting structure 1 of the opening frame 4 can be welded, an off-the-shelf angle material is cut and joined to assemble the cross-girder-shaped opening frame 4. Then, the bolt B1 and the nut N1 are temporarily tightened in the screw through hole 11a of the opening frame 4. At this time, the inner frame width D1 (see FIG. 14A), which is the horizontal length between the wall panels P1, may be measured, and the opening frame 4 may be assembled using the measurement result. According to this method, the assembly error of the building frame can be absorbed and the finishing accuracy of the opening frame 4 can be increased.

  Also, by performing welding work at a location away from the wooden first horizontal member 2 and the upper second horizontal member 3, it is possible to reduce the risk of fire and increase the work safety at the construction site. it can. Furthermore, by carrying out the welding operation at a predetermined place determined in advance, it is possible to improve workability by eliminating the need for grounding cords and the like necessary for the welding operation.

  Here, a contact processing portion 41 for the bolt B1 may be formed on the surface P1a of the wall panel P1. The perforated portion 41 is for avoiding contact between the head of the bolt B1 and the wall panel P1. On the indoor side surface P1a of the wall panel P1, it extends vertically so as to sandwich the lower surface 3b of the upper second horizontal member 3 so as to form the contact portion 41.

  As shown in FIG. 12B and FIG. 14B, the opening frame 4 is built in the opening region S from the indoor side. As shown in FIG. 15 (a), the upper part of the opening frame 4 is inclined to the outdoor side so that the panel edge surface contact piece 12 of the vertical frame 7 contacts the edge surface P1b of the wall panel P1, and the panel surface. The contact piece 11 is brought into contact with the surface P1a on the indoor side of the wall panel P1. Subsequently, between the upper second horizontal member 3 and the wall panel P1, the upper end of the panel surface abutting piece 11 is inserted between the upper second horizontal member 3 and the wall panel P1 from the lower side to the upper side. While being inserted, the lower mounting bracket 13 of the opening frame 4 is pressed against the vertical flange 6b of the first base steel material 6 on the lower side from the indoor side.

  At this time, since the contact portion 41 (see FIG. 12A) is formed on the wall panel P1, the head of the bolt B1 does not come into contact with the surface P1a of the wall panel P1. The contact piece 11 can be inserted into close contact with the surface P1a of the wall panel P1.

  On the other hand, when the lower part of the neck of the bolt B1 and the lower surface 3b of the upper second horizontal member 3 come into contact with each other, the opening frame 4 cannot be inserted further upward. Therefore, in the construction method of the present embodiment, the bolt B1 and the nut N1 are temporarily fastened to the lower end of the screw through hole 11a of the panel surface contact piece 11 formed in a vertically long shape. (2) The distance until the lower surface 3b of the horizontal member 3 comes into contact is increased.

  The bolt B1 and the nut N1 are after the opening frame 4 is inserted between the wall panel P1 and the upper second horizontal member 3, and the lower mounting bracket 13 is attached to the lower first base steel material 6. Before the contact, the screw through hole 11a may be temporarily tightened.

  As shown in FIG. 12 (c), the lower mounting bracket 13 is temporarily fixed at a position about 10 mm higher than the reference position with respect to the vertical flange 6 b of the lower first base steel material 6. The reference position is the position of the opening frame 4 where the lower horizontal frame 8 contacts the upper end surface P3c of the waist wall panel P3. As shown in FIG. 16A and FIG. 16B, the bolt B2 is inserted through the screw through hole 26 of the first base steel material 6 from the outside to the lower side and the screw through hole 23a of the lower mounting bracket 13 in this order. Then, the nut N2 is screwed.

  As shown in FIGS. 13 (a) and 14 (c), the waist wall panel P3 is installed between the lower horizontal frame 8 and the self-weight receiving bracket 37 (see FIG. 2).

  Here, when the opening frame 4 is fixed at the reference position, as shown in FIG. 17A, the height of the waist wall panel P3 is approximately between the lower horizontal frame 8 and the weight receiving bracket 37. Since it becomes the same, the waist wall panel P3 cannot be built easily.

  On the other hand, in this embodiment, since the opening frame 4 is temporarily fixed at a position higher than the reference position, as shown in FIG. 17B, the horizontal flange 8a of the lower horizontal frame 8 and the self-weight bracket The space between the 37 horizontal flanges 37a is larger than the height of the waist wall panel P3. In such a configuration, when the lower end surface P3b of the waist wall panel P3 is brought into contact with the self-weight bracket 37, a gap D is formed between the upper end surface P3c and the lower horizontal frame 8. Therefore, the waist wall panel P3 can be easily built.

  After installing the waist wall panel P3, the upper portion of the waist wall panel P3 is temporarily fixed to the lower lateral frame 8 by the mounting bracket 39 of the lower lateral frame 8 (see FIG. 11B). Further, the lower portion of the waist wall panel P3 is temporarily fixed to the lower first base steel material 6 by the mounting bracket 27 of the lower first base steel material 6 (see FIG. 9).

  As shown in FIGS. 13B and 14D, the opening frame 4 is pushed down to a predetermined position.

  Here, as shown in FIG. 18A, in the state where the waist wall panel P3 is temporarily fixed, a gap D is formed between the upper end surface P3c and the lower lateral frame 8. Therefore, as shown in FIG. 18B, the height of the opening frame 4 is adjusted by hitting the lower horizontal frame 8 with a hammer or the like until the lower horizontal frame 8 comes into contact with the upper end surface P3c. By this step, the waist wall panel P3 and the lower horizontal frame 8 can be constructed without a gap.

  As shown in FIG. 13C, the upper mounting bracket 14 is attached to the opening frame 4 and the upper second horizontal member 3. As shown in FIG. 19A, a bolt B <b> 1 and a nut N <b> 1 are temporarily tightened on the upper portion of the opening frame 4. First, as shown in FIG. 19B, after removing the nut N1, the bolt B1 is inserted into the screw through hole 16a (see FIG. 3) of the upper mounting bracket 14, and the vertical flange 16 of the upper mounting bracket 14 is inserted. Is brought into contact with the panel surface contact piece 11. At this time, the position of the upper mounting bracket 14 is adjusted so that the horizontal flange 19 of the upper mounting bracket 14 contacts the lower surface 3b of the upper second horizontal member 3. The nut N1 is screwed into the bolt B1 again, and is temporarily fixed so that the upper mounting bracket 14 does not move.

  As shown in FIG. 19 (c), by screwing the lag screw 21 into the upper second horizontal member 3 from the screw through hole 19 a provided in the horizontal flange 19 of the upper mounting bracket 14, The upper mounting bracket 14 is fixed to the frame member 3. Then, the nut N1 is finally tightened.

  As shown in FIGS. 13D and 14E, the lintel wall panel P2 is built. The lower end surface P2b of the lintel wall panel P2 is brought into contact with the upper lateral frame 8 and temporarily fixed to the mounting bracket 38 (see FIG. 11A). Further, the upper part of the lintel wall panel P2 is temporarily fixed to the lower fixing part 27b of the mounting bracket 27 of the upper second base steel material 9 (see FIG. 10).

  Finally, the temporarily fixed waist wall panel P3 and the mounting brackets 27 and 39 are permanently fixed, and the temporarily fixed lintel wall panel P2 and the mounting brackets 27 and 38 are permanently fixed, and then the window frame. Fit W (see FIG. 1). If necessary, the mounting bracket 27 may be fixed to each of the lower first base steel material 6 and the upper second base steel material 9 using a steel screw. If necessary, the mounting bracket 38 may be fixed to the upper horizontal frame 8 using a steel screw and the mounting bracket 39 may be fixed to the upper horizontal frame 8 using a steel screw. Good. The opening frame 4 is attached by the above process.

  Here, the installation method of the opening frame 4 will be summarized. Between the wall panels P1, the opening frame 4 exceeds the second horizontal member 3 on the upper side and the first horizontal member 2 on the lower side from the indoor side. After the state, the lower mounting bracket 13 disposed at the lower end of the vertical frame 7 is brought into contact with the lower first base steel material 6 and the upper mounting bracket 14 disposed on the upper side of the vertical frame 7 is moved to the upper second horizontal frame. A step of facing the lower surface 3b of the member 3, a step of bringing the upper mounting member 14 into contact with the lower surface 3b of the upper second horizontal member 3 while being raised directly above, a lower mounting member 13 and a lower first member 1 fixing the base steel 6 with bolts B2 and nuts N2, fixing the upper mounting bracket 14 to the lower surface 3b of the upper second horizontal member 3 with lag screws 21, and nuts N1 with respect to the bolts B1 Tighten the upper mounting bracket 14 in the temporarily fastened state with the vertical frame It has a step of firmly, to.

  According to the mounting structure 1 of the opening frame 4 of the present embodiment, the panel surface abutting piece 11 abuts on the indoor side surface P1a of the wall panel P1, and the panel small edge surface abutting piece 12 is the small edge surface P1b of the wall panel P1. Work from the inside of the room so that it touches. For the vertical frame 7 pressed against the wall panel P1, the vertical flange 16 of the upper mounting bracket 14 is attached to the upper part of the panel surface contact piece 11 of the vertical frame 7 and the horizontal flange 19 is attached to the upper second horizontal member. 3 is fixed to the upper second horizontal member 3 by attaching it to the lower surface 3 b of the upper frame 3. A lower mounting bracket 13 is fixed to the lower part of the vertical frame 7. When the panel surface contact piece 11 contacts the indoor surface P1a of the wall panel P1, the lower mounting bracket 13 contacts and fixes the vertical flange 6b of the lower first base steel material 6 from the indoor side. Is done. Therefore, even when the wall panels P1 on both sides of the opening region S are first constructed, the opening frame 4 can be easily attached from the indoor side without taking the opening frame 4 out.

  Moreover, in the attachment structure 1 of the opening frame 4 of this embodiment, since the screw through hole 26 of the lower first base steel material 6 is a horizontally long hole, the lower first base steel material 6 has the screw through hole 26. It is possible to move in the horizontal direction with respect to the bolt B2 inserted through the. Further, since the screw through hole 23a of the lower mounting bracket 13 is a vertically long hole, the lower mounting bracket 13 is movable in the vertical direction with respect to the bolt B2 inserted through the screw through hole 23a. Therefore, since the lower mounting bracket 13 can move in the horizontal direction and the vertical direction with respect to the lower first base steel material 6, the adjustment position of the mounting position of the opening frame 4 with respect to the lower first base steel material 6 can be adjusted. Can be bigger.

  By the way, a plurality of marks M (see FIG. 8) for defining the horizontal position of the wall panel P1 and marks (not shown) for providing the screw through holes 26 are provided on the lower first base steel material 6. May be provided. For this reason, it is desired to save labor for the marking work by reducing the number of marks formed by marking work by making each mark common.

  In the mounting structure 1 of the opening frame 4 according to the present embodiment, the screw through hole 23a of the lower mounting bracket 13 can be provided by being shifted in a direction protruding in the horizontal direction from the panel facet contact piece 12, so that the lower side The screw through hole 26 of the first base steel material 6 can be provided at the allocation position corresponding to the small edge surface P1b of the wall panel P1. Therefore, the mark M for alignment of the wall panel P1 and the mark for the screw through hole 26 of the first base steel material 6 on the lower side can be made common to save the labor for the marking work.

  In addition, as shown in FIG. 20A, when the lower mounting bracket 13 is not shifted and attached to the opening region S side, the position of the bolt B2 is closer to the wall panel P1 than the assigned position of the wall panel P1. Thus, in the horizontal direction, the position of the screw through hole 23a becomes relatively deep from the small edge surface P1b of the wall panel P1. Therefore, even when the waist wall panel P3 is not installed, the bolt B2 can be easily inserted into the screw through hole 23a of the lower mounting bracket 13 and the screw through hole 26 of the lower first base steel material 6. Can not.

  On the other hand, as shown in FIG. 20B, in the mounting structure 1 of the opening frame 4 of the present embodiment, the direction in which the screw through hole 23a of the lower mounting bracket 13 protrudes horizontally from the panel edge face contact piece 12 In the horizontal direction, the position of the bolt B2 is substantially the same as the allocated position of the wall panel P1, and the position of the screw through hole 23a is relatively shallow from the small edge surface P1b of the wall panel P1 in the horizontal direction. Become. Therefore, the bolt B2 can be easily inserted into the screw through hole 23a of the lower mounting bracket 13 and the screw through hole 26 of the lower first base steel material 6.

  Further, according to the lower mounting bracket 13 of the present embodiment, the screw through holes 23a are arranged side by side symmetrically in the horizontal direction, so that the same can be obtained by changing the mounting position of the lower mounting bracket 13 with respect to the vertical frame 7. A lower mounting bracket 13 having a shape can be used. Therefore, the lower mounting bracket 13 attached to each vertical frame 7 can be shared, and the types of parts can be reduced.

  The present invention is not limited to the embodiment described above. The relationship between the screw through hole 23a of the lower mounting bracket 13 and the screw through hole 26 of the lower first base steel material 6 is, for example, that the screw through hole 23a is a large-diameter hole and the screw through hole 26 is horizontally long. There may be. In this case, a washer is disposed between the screw through hole 23a and the nut N2. Further, the screw through hole 23a may be a horizontally long hole, and the screw through hole 26 may be a vertically long hole. Further, the screw through hole 23a may be a large diameter hole, and the screw through hole 26 may be a vertically long hole. According to these configurations, the margin for adjusting the position of the lower mounting bracket 13 relative to the lower first base steel material 6 can be increased. Further, by fitting the neck portion of the bolt B2 into the screw through hole 26 of the lower first base steel material 6, it is possible to prevent co-rotation when the nut N2 is screwed and improve workability.

  Further, in the step d of installing the opening frame 4, as shown in FIG. 15B, the lower side of the opening frame 4 is inclined so as to be the outdoor side, and the lower side of the vertical frame 7 is first placed on the wall panel P1. Then, the entire vertical frame 7 is brought into contact with the wall panel P1 by pushing the upper part of the vertical frame 7 to the outdoor side. Then, the opening frame 4 may be moved upward to a predetermined position in the contacted state.

DESCRIPTION OF SYMBOLS 1 ... Opening frame mounting structure, 2 ... 1st horizontal member, 3 ... 2nd horizontal member, 4 ... Opening frame, 6 ... 1st foundation steel material, 7 ... Vertical frame, 8 ... Horizontal frame, 9 ... 2nd Base steel material, 11 ... Panel surface contact piece, 11a ... Screw through hole, 12 ... Panel facet contact piece, 13 ... Lower mounting bracket, 14 ... Upper mounting bracket, 22 ... Upper fixing portion, 23 ... Lower fixing portion, 23a ... Screw through hole (second screw through hole), 26 ... Screw through hole (first screw through hole), 27, 38, 39 ... Mounting bracket, 37 ... Self-weight receiving bracket, B1-B8 ... Bolt, N1-N8 DESCRIPTION OF SYMBOLS Nut, P1 ... Wall panel, P1a ... Surface, P1b ... Small edge surface, P2 ... Crib wall panel, P3 ... Waist wall panel, S ... Opening area, W ... Window frame.

Claims (4)

A second horizontal member to which a second base steel material is fixed is disposed on the first horizontal member to which the first base steel material is fixed, and is disposed between the first horizontal member and the second horizontal member. A structure in which a wall panel is attached to the first horizontal member via the first base steel material and is attached to the second horizontal member via the second base steel material, and an opening frame is attached between the wall panels. In
The opening frame is
A vertical frame including a panel surface contact piece that contacts the indoor surface of the wall panel and a panel edge surface contact piece that contacts the edge surface of the wall panel;
An L-shaped upper mounting bracket attached to the upper part of the panel surface abutting piece and the lower surface of the second horizontal member;
A lower mounting bracket fixed to the lower part of the panel surface abutting piece and attached to the vertical flange of the L-shaped first base steel material from the indoor side, and mounting the opening frame, Construction. The vertical flange of the first base steel material is provided with a horizontally long first screw through hole extending in the horizontal direction,
The opening frame mounting structure according to claim 1, wherein the lower mounting bracket is provided with a vertically long second screw through hole extending in the vertical direction.   3. The opening frame mounting structure according to claim 2, wherein the lower mounting bracket is fixed to the panel surface contact piece so as to protrude in a horizontal direction from the panel facet contact piece. The mounting structure for an opening frame according to claim 2 or 3, wherein the second screw through holes are arranged in parallel in the horizontal direction.

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