JPH08177128A - Installing structure of expansion unit - Google Patents

Abstract

PURPOSE: To obtain a large installing strength by combining directly an expansion unit to expand the inner space of a building unit, to a box form connection bracket to compose the frame of the building unit. CONSTITUTION: The framework 20 of a building unit 10 is composed by including a column 21; beams 22 and 23; and a box form connection bracket 30A to unite those members. And the framework 60 of an expansion unit 50 to expand the inner space in the building unit 10 is abutted to the connection bracket 30A, and connected directly through a bolt 20A. And in this case, it is preferable to combine the expansion unit 50 to the building unit 10 at least at three points including the connection bracket 30A at both ends of the building unit 10. Furthermore, it is also preferable to provide a bracket at the lower part of the building unit 10, and the lower end of the expansion unit 50 is hooked thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for an expansion unit, and can be used for construction of a unit type building composed of a plurality of building units.

[0002]

[Background Art] A building unit that constitutes a unit-type building consists of four columns that are erected at four corners, and an upper beam and a lower beam that are bridged between the upper ends and lower ends of these four columns. It has a skeleton. Furthermore, these upper and lower beams are
Each pair of long-side beams and short-side beams is formed, and the columns and the beams are connected to each other via a box-shaped joint bracket. Then, in such a building unit, in order to expand the internal space to provide a storage space or the like, an expansion unit may be attached to the opened side surface of the building unit.

Like the building unit, this expansion unit has a frame composed of columns and beams, and the frame is generally attached to the short side of the frame of the building unit. In addition, this frame was attached to the frame of the building unit via brackets at all attachment points.

In recent years, it has been desired to attach an extension unit also to the side surface on the long side of a building unit. In such a framework of the extension unit, the length of the beam parallel to the attachment surface with the building unit is the building. It is almost equal to the length of the long side beam in the unit, and is larger than the skeleton of the expansion unit so far.

[0005]

When an extension unit is to be attached to the long side of a building unit, the weight of the extension unit is larger than that of the conventional extension unit, so that the building unit can be installed more than before. Therefore, a mounting structure that satisfies this mounting strength has been desired.

An object of the present invention is to provide a mounting structure for an expansion unit which can provide a large mounting strength with a building unit.

[0007]

SUMMARY OF THE INVENTION The expansion unit mounting structure of the present invention is intended to achieve the above object by directly connecting the expansion unit frame to the structural members of the building unit frame. Specifically, columns and beams,
These pillars, a building unit having a frame formed including a box-shaped joint bracket that joins the beam, a mounting structure of an expansion unit for mounting an expansion unit for expanding the internal space of this building unit, This expansion unit is characterized in that it is connected to the joint bracket of the building unit.

Further, it is preferable that the expansion unit is connected to the building unit at least at three points including connection brackets at both ends of the building unit, and the lower end of the expansion unit is hooked below the building unit. It is preferable that a part is provided.

[0009]

In the present invention as described above, the expansion unit is directly connected to the box-shaped joint bracket constituting the frame of the building unit. In other words, since this joint bracket is formed in a box shape, it has great rigidity due to its structure,
By directly connecting the expansion unit to this joint bracket, it becomes possible to obtain a mounting strength larger than that of the conventional mounting structure in which the bracket is mounted at all the mounting locations via the bracket.

Further, when the expansion unit is connected at at least three points including the joint brackets at both ends of the building unit, the rigidity of the expansion unit is improved, so that the pillars and beams constituting the skeleton of the expansion unit are thick. It is possible to use a thin product or a product having a small cross-sectional size, and it is possible to provide a wide internal space for the expansion unit.

When a hooking portion for hooking the lower end of the expansion unit is provided below the building unit, the work of mounting the expansion unit on the building unit is performed by suspending the lower end of the expansion unit with a crane or the like. After the work is carried out and the work is hooked on the hanging portion, it is only necessary to connect only the upper part of the expansion unit to the building unit by bolting, for example, and the mounting work can be easily carried out.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a building unit 10 and an expansion unit 50 according to this embodiment. Building unit 10 is frame 2
The frame 20 has pillars 21 erected at four corners, and a pair of long-side upper beams 22 and a pair of short-side upper beams 23 bridged between the upper ends of these pillars 21. , A pair of long-side lower beams 24 and a pair of short-side lower beams 25 bridged between the lower ends of the columns 21, and these long-side upper beams 2
2, the short side upper beam 23, the long side lower beam 24, and the short side lower beam 25 are connected to each column 21 via the joint bracket 30.

The expansion unit 50 has a frame 60, which is a frame 20 of the building unit 10.
Similarly, four pillars 61 erected at the four corners, a pair of long side upper beams 62 and a pair of short side upper beams 63 bridged between the upper sides of these columns 61, and the lower ends of the columns 61. It is configured to include a pair of long-side lower beams 64 and a pair of short-side lower beams 65 bridged therebetween, and the long-side upper beam 62 and the long-side lower beam 64 are provided with a column 61 via a connection bracket 70. It is connected to the.

Here, the skeleton 20 of the building unit 10 and the skeleton 60 of the expansion unit 50 are connected to each other on their long sides facing each other, and the skeleton 20 and the skeleton 6 are connected.
The length in the longitudinal direction is the same as that of 0.
Has a vertical dimension slightly smaller than that of the skeleton 20. The frame 50 side of the joint brackets 30 in the frame 20 is the joint bracket 30A.
.About.30D, and the facing brackets 70 facing them are respectively the facing brackets 70A to 70D.

Outer wall panels (not shown) are arranged outside the building unit 10 and expansion unit 50, and inner wall panels, floor panels, ceiling panels and the like (not shown) are arranged inside. As a result, a living room space or a storage space is formed.

FIG. 2 is an enlarged view of the portion surrounded by the encircling circle II in FIG. 1, which is one end side in the longitudinal direction above the frame 20 of the building unit 10 and the frame 60 of the expansion unit 50. The mounting structure is shown.

The joint bracket 30A of the skeleton 10 has a bracket main body 31 having a U-shaped cross section, and a side wall member 32 fixed to one U-shaped end surface of the bracket main body 31.
The bracket main body 31 and the side wall member 32 are made up of an auxiliary member 33 having an L-shaped cross section fixed to the corner open side, and a reinforcing member 34 formed in a substantially trapezoidal plate shape, and formed as a whole in a box shape. Has been done.

More specifically, the bracket body 31 has a U-shaped cross section having a web 31A forming a vertical wall and flanges 31B and 31C forming a pair of horizontal walls extending horizontally from the upper and lower ends of the web 31A. Is formed in. The upper flange 31B has one end face (an end face to which the side wall member 32 is not fixed) of one of a pair of end faces along the extending direction from the middle to the other end face (the side wall member 32 is fixed to the end face). (The end face), the notch is formed at a 45 ° angle toward the tip in the extending direction. The lower flange 31C has a substantially trapezoidal shape that is cut out at about 45 degrees from the middle of one end face along the extending direction to the middle of the tip in the extending direction.

The web 31A and the flanges 31B and 31
One of the U-shaped end surfaces of C and C-shaped end side (end side surface to which the side wall member 32 is not fixed) is bent inward toward each other so as to be outwardly inclined. Guide edges 31D to 31F that slightly project toward each other are continuous with each other and are formed in a U-shape. Also, the flange 31
Guide edges 31G and 31H, which are bent downward in a slanting manner and slightly project outward, are formed on the tip ends of B and 31C in the extending direction.

The side wall member 32 is formed in a rectangular plate shape fixed to the other U-shaped end surface of the bracket main body 31 at a right angle to the web 31A, and is bent toward the inside in a slanted shape at the tip end side. A guide edge 32A that is bent and slightly protrudes outward is formed. The auxiliary member 33 is fixed to the corner portion open side of the web 31A of the bracket main body 31 and the side wall member 32, and is formed with the web 31A and the side wall member 32 into a substantially rectangular tube-shaped L-shaped cross section. The reinforcing member 34 is abutted and fixed to the auxiliary member 33 and the upper flange 31B.

In the above, the column 21 is fixed to the lower surface of the flange 31C by welding or the like, and the guide edges 31D to 3D are formed.
The short-side upper beam 23 of the skeleton 20 is fixed to 1F, and the long-side beam 22 of the skeleton 20 is fixed to the guides 31G, 31H, and 32A. In addition, the flange 31B is provided with a bolt hole 31J for joining with an upper-floor building unit which is bored through the front and back and guide pins 31K, 31L used for positioning at the time of joining.

On the other hand, the joint bracket 70A of the frame 60
Is a rectangular tube-shaped bracket main body 71 and a first extension portion in which one side surface (a side surface facing the building unit 20) of a pair of side surfaces of the bracket main body 71 continuously extends upward in the vertical direction. 72 and a second extension in which one end face (end face facing the outside of the building unit 50) of the pair of end faces along the extension direction of the first extension portion 72 continuously extends in the horizontal direction. The portion 73 and a bent portion 74 in which the front end surface of the first extending portion 72 is bent and extends in the horizontal direction are configured.

As shown in FIGS. 3 and 4, the joint bracket 70A has two nuts 60A fixed horizontally to the inner space of the bracket main body 71 on the inner space side of the expansion unit 50. In addition, two nuts 60B fixed in the vertical direction are provided on the inner surface of the building unit 10 side and the inner surface of the first extending portion 72. Then, a long side upper beam 62 having a rectangular cross section is bolted 66A and seat 66 to the joint bracket 70A via an L-shaped bracket 66.
B and a nut 60A are screwed together for connection.

A column 61 is abutted and fixed by welding or the like on the corner opening side of the second extending portion 73 of the joint bracket 70A and the bracket body 71 and the bent portion 74. . Further, a short side upper beam 63 is fixed to the pillar 61, and an L-shaped bracket 67 is abutted and fixed to the upper end surface and the side surface on the short side upper beam 63 side.
Below this bracket 67 is a U-shaped bracket 68.
Is stuck. A substantially L-shaped bracket 69 is attached to the bracket 68 by a bolt 69A and a nut 68A.
It is attached by screwing. Here, the ceiling plate 80 is attached to the bracket 69, and the roof member 81 is attached to the bracket 67. In addition, a bolt hole 61 is formed in the upper end surface of the pillar 61, and a nut 61B is fixed to the back surface side.
A hanging bolt (not shown) is screwed into this.

In the above, the skeleton 20 of the building unit 10 and the skeleton 60 of the expansion unit 50 correspond to each skeleton 2
The joint bracket 70A is in contact with the opposing joint bracket 30A at one end side in the longitudinal direction above 0, 50, and the two bolts 20A and the seat crows 20B penetrating the joint brackets 30A, 70A, Nut 60B
Are connected to each other. The joint bracket 30B and the joint bracket 70A that faces the joint bracket 30B are similarly connected to each other on the other end side as well, and the description thereof is omitted here for simplification.

FIG. 5 is an enlarged view of the portion surrounded by the encircling circle V in FIG. 1, which is located approximately in the center in the longitudinal direction above the frame 20 of the building unit 10 and the frame 60 of the expansion unit 50. The mounting structure is shown.

The building unit 20 of the pair of side surfaces is provided at the approximate center in the longitudinal direction of the upper beam 62 of the frame 60.
A through hole 62A is formed in the side surface on the side, and a plate member 62B having a thickness corresponding to a gap between the long side upper beam 62 and the long side upper beam 22 facing the long side upper beam 62 covers and fixes the through hole 62A. A nut 62C is fixed to the inside of the plate member 62. And, the long side upper beams 22, 62 are
The plate member 62B of the long-side beam 62 is abutted on the long-side upper beam 22, and the nut 2 penetrating these plate members 62B and the long-side upper beam 22.
2A, a washer 22B, and a nut 62C are connected to each other.

FIGS. 6 and 7 are cross-sectional views taken along line VI-VI and line VII-VII in FIG. 1, showing the longitudinal direction below the frame 20 of the building unit 10 and the frame 60 of the expansion unit 50. The mounting structure at one end is shown.

Since the joint bracket 30D of the skeleton 20 has substantially the same structure as the joint bracket 30A described above, a detailed description thereof will be omitted here, and the following description will be simplified.

The joint bracket 30D includes a bracket main body 131 having a U-shaped cross section, a side wall member 132 fixed to one U-shaped end surface of the bracket main body 131, and the bracket main body 131 and the side wall member 132. An auxiliary member 133 having an L-shaped cross section and fixed to the corner opening side, and a reinforcing member 134 formed in a substantially trapezoidal plate shape are formed in a box shape as a whole.

The lower end of the column 21 is fixed to the upper flange portion of the bracket body 131, and the lower flange has a bolt hole 131J for joining with a lower floor building unit and guide holes 131K and 131L into which guide pins are inserted. And have been drilled. Nuts 20C are fixed to both ends in the horizontal direction below the inner side surface of the side wall member 132, and a bracket 90 as a hooking portion is disposed below the outer side surface. The bracket 90 is a bolt 90A and a seat. Glass 90B, nut 2
No. 0 is screwed to the joint bracket 30D.

The bracket 90 has a rectangular plate-shaped base portion 91 that is in contact with the side wall member 132, a bent portion 92 in which the upper end of the base portion 91 is bent in the horizontal direction, and these base portions 9 are formed.
1 and a pair of ribs 93 provided in parallel with the bent portion 92 on the open sides of the corners, and the bent portion 92 is formed in a substantially trapezoidal shape in plan view. A guide pin 94 is fixed to the bent portion 92 at a substantially central portion of the upper surface thereof.

On the other hand, the joint bracket 70D of the frame 60
Is a bracket main body 171 having a rectangular tubular shape, and a side surface of the pair of side surfaces of the bracket main body 171 that faces the building unit 20 side is a pillar 21 along the joint bracket 30D.
And the two nuts 60 </ b> A are fixed in the horizontal direction to the building unit 50 side of the pair of inner surfaces of the bracket body 171.

In this joint bracket 70D, a pillar 61 is erected and fixed on the corner open side of the bracket main body 171 and the extending portion 172, and the long side lower beam 64 is provided with the long side upper beam 6 described above.
As in the case of 2, the bolt 66A, the seat ridge 66B, and the nut 60A are connected via the bracket 66. Also,
A short side lower beam 65 is fixed to the lower side of the pillar 61 similarly to the above short side upper beam 63, and a guide hole 6 is formed on the lower end surface.
1C is drilled.

In the above, the joint bracket 70D of the skeleton 60 is brought into contact with the joint bracket 30D, and the guide pin 94 of the bracket 90 is inserted into the guide hole 61C of the column 61 and connected to the skeleton 20. The connection brackets 30C and 70C (both of which are shown in FIG. 1) also have the same structure on the other end side, and the frame 60 has the bracket 90.
It is attached to the skeleton 20 via.

FIG. 8 is an enlarged view of the portion surrounded by the encircling circle VIII in FIG. 1, which is located approximately in the center in the longitudinal direction below the frame 20 of the building unit 10 and the frame 60 of the expansion unit 50. The attached state is shown.

Two nuts 20C are horizontally fixed to the inner surface of the web of the long-side lower beam 24 at approximately the center in the longitudinal direction of the long-side lower beam 24 of the frame 20, and the bolts are attached to the outer surface of the web. The bracket 90 is screwed by 90A and a seat block 90B. Further, the long-side lower beam 64 of the frame 60 is provided with a guide hole 64A at a position corresponding to the guide pin 94 of the bracket 90.
0 is a guide pin 94 in the guide hole 64A of the long side lower beam 64.
Is inserted and placed on the bracket 90 to be connected to the skeleton 20.

In this embodiment, the frame 60 of the expansion unit 50 is attached to the frame 20 of the building unit 10 as follows. First, the bracket 9
0 is a connection bracket 30C, 30D below the skeleton 20
And it is screwed to the long side lower beam 24. Next, a suspension bolt is attached to the upper end surface of each column 51 that constitutes the skeleton 60 of the expansion unit 50, and is suspended by a crane or the like via a wire rope, for example. After that, the skeleton 60 is suspended so that the guide hole 61C provided at the lower end of the pillar 61 is engaged with the guide pin 94 of the bracket 90 attached to the skeleton 20.

Then, above the skeleton 20 and the skeleton 60, the connection brackets 30A and 70 facing each other are provided.
A, and connection brackets 30B and 70B with bolts 20
Connect directly with A. Further, the long side upper beams 22 and 62 facing each other are connected by a bolt 22A.

According to this embodiment, the following effects can be obtained. That is, the skeleton 20 of the building unit 10
Since the joint bracket 30A constituting the above is formed into a box shape having a large rigidity, the skeleton 60 of the expansion unit 50
Is directly connected to the joint bracket 30A, a larger mounting strength can be obtained as compared with the case where the expansion unit is mounted via the brackets at all the mounting points as in the conventional case, and the weight is smaller than that in the conventional case. The heavy expansion unit 50 can be attached to the long side of the building unit 10.

Further, since the skeleton 20 and the skeleton 60 are also connected to each other at substantially the center in the longitudinal direction, the rigidity of the skeleton 60 as a whole is increased, and the columns 61 and the beams 62 to constitute the skeleton 60.
It is possible to reduce the wall thickness and the cross-sectional dimension of 65, and to widen the internal space of the expansion unit 50.

Further, since the bracket 90 is attached below the frame 20, when the expansion unit 50 is attached to the building unit 10, the guide hole 61C provided at the lower end of the pillar 61 in the frame 60 is attached to the bracket 90. It suffices to hook it on the guide pin 94 of the
The work of mounting the building unit 10 and the expansion unit 50 can be easily performed by omitting the work of bolting on the lower side of 0.

The present invention is not limited to the above-described embodiments, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. For example, in the above-described embodiment, the lower end of the frame 60 has the bracket 9
Although it was hooked to 0 and connected to the skeleton 20, the skeleton 60 may be directly connected to the skeleton 20 by bolting or the like as in the mounting structure above the skeletons 20 and 60. In this case, Can save the trouble of preparing the bracket 90.

In the above embodiment, the long-side upper beam 62 and the long-side lower beam 64 constituting the frame 60 are connected to the column 61 via the joint brackets 70. However, for example, each long-side beam is Like the short upper beam 63 and the short lower beam 64, the direct pillar 61 is used.
It may be fixed to. Therefore, each frame 20, 60
It is not necessary to connect the facing brackets 30 and 70 facing each other as in the above-described embodiment in the mounting structure above the, for example, the long side upper beams 62 of the skeleton 60 are connected to the facing brackets on both sides in the longitudinal direction. It may be directly connected to 30A and 30B. In short, it suffices that the component members forming the frame of the expansion unit are directly connected to the joint brackets forming the frame of the building unit.

Although the expansion unit 50 is attached to the long side of the building unit 10 in the above-mentioned embodiment, the present invention can be applied to the case where the extension unit is attached to the short side of the building unit as in the prior art. Can be applied.

[0046]

As described above, according to the present invention, since the frame of the expansion unit is directly connected to the joint bracket constituting the frame of the building unit, the mounting strength between the building unit and the expansion unit is improved. Therefore, even if the expansion unit becomes heavy, it can be attached to the building unit.

Further, when the expansion unit is connected at at least three points including the connection brackets at both ends of the building unit, the rigidity of the entire expansion unit is increased, and the wall thickness of the members constituting the frame of the expansion unit and The cross-sectional size can be reduced, and the internal space of the expansion unit can be widened.

Further, when the hooking portion is provided below the building unit, the lower end of the expansion unit is hooked on this hooking portion to facilitate the work of attaching the building unit and the expansion unit. The effect is that it can be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing a framework of a building unit and an extension unit according to an embodiment of the present invention.

FIG. 2 is an enlarged view showing a portion surrounded by a circle II in FIG.

3 is a cross-sectional view showing an arrow III in FIG.

4 is a cross-sectional view showing an arrow IV in FIG.

5 is a plan view of a partial cross section showing a portion surrounded by a circle V in FIG. 1. FIG.

6 is a sectional view taken along line VI-VI in FIG.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a plan view of a partial cross section showing a portion surrounded by a circle VIII in FIG. 1.

[Explanation of symbols]

 10 Building Units 20 Frames of Building Units 21 Columns in Frames of Building Units 22 Long Side Beams in Frames of Building Units 30 Joint Brackets 50 Expansion Units 60 Frames of Expansion Units 61 Columns in Frames of Expansion Units 62 Frames of Expansion Units Long side upper beam 90 Bracket that is a hooking part

Claims (3)

[Claims] 1. A building unit having a skeleton formed of columns and beams and a box-shaped joint bracket for joining the columns and beams, and an expansion unit for expanding the internal space of the building unit. An attachment structure of an extension unit to be attached, wherein the extension unit is connected to the joint bracket of the building unit. 2. The expansion unit mounting structure according to claim 1, wherein the expansion unit is connected to the building unit at least three points including the connection brackets at both ends of the building unit. Extension unit mounting structure. 3. The mounting structure for an expansion unit according to claim 1 or 2, characterized in that a hooking portion for hooking a lower end of the expansion unit is provided below the building unit. Extension unit mounting structure.