JP2605329Y2 - Connection structure between building units - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to the joining between building units.
The present invention relates to a structure , and more particularly to a joining structure used when joining building units stacked vertically.

[0002]

2. Description of the Related Art In recent years, a unit construction method which has come to be frequently used for housing construction is to produce a modularized building unit such as a living room unit, a roof unit, etc., in which various components constituting a building are assembled, in advance at a factory. These building units are transported to the construction site, and these building units are joined up and down, left and right, and back and forth at the construction site to construct a unit building. Such a unit construction method has advantages such as simplification of the work at the construction site and shortening the construction period.

Conventionally, in a building unit used in the unit construction method, an upper beam and a lower beam are erected between upper ends and lower ends of four columns erected at four corners to form a rectangular frame. . Of these building units, the connection between the upper-floor building unit and the lower-floor building unit is, for example, from the upper-floor building unit to the bolt insertion hole drilled at the corresponding position of the pillar or upper and lower beams of each building unit. A bolt is inserted across the lower-floor building unit, and the bolt is screwed and joined to a nut previously welded to the bolt insertion hole of the lower-floor building unit.

[0004]

However, in the conventional building unit, since the nut is welded to the bolt insertion hole, the upper-floor building unit is placed in a state where the lower-floor building unit is misaligned. Then, the position of the nut of the lower-floor building unit and the position of the bolt insertion hole of the upper-floor building unit deviate, and it becomes impossible to screw a bolt straddling the upper-floor and lower-floor building units into the nut. For this reason, when building a unit-type building, the upper-floor building unit must be placed at an accurate position on the lower-floor building unit, which complicates the building unit assembling work at the time of construction. Has the disadvantage of requiring a lot of effort.

[0005] The present invention has been made in view of such circumstances, and a purpose of the present invention is to provide a method for assembling building units in which misalignment occurs between an upper building unit and a lower building unit that are vertically stacked. However, bolts and nuts
It is an object of the present invention to provide a joint structure between building units that can securely screw the units.

[0006]

According to a first aspect of the present invention, a joint structure between building units is provided in one of the upper and lower building units stacked vertically. The joining nut and the bolt inserted across these building units from the other building unit are screwed together, thereby connecting both building units with the nut and bolt . Joint structure
A concrete, the bonding nut, together are movably accommodated in the casing provided in said one of the building units, is brought into contact with the inside of the casing when the bolt is screwed The casing is provided so as not to spin, and the casing is formed in a vertical sectional groove shape opened to the inside of the one building unit, and at the connection provided on the outside of the pillar constituting the building unit, The bolt is provided inside an extending portion that extends horizontally in the unit, and the bolt is formed in a vertical cross-sectional groove shape that is open to the inside of the other building unit, and is provided outside a pillar that constitutes the building unit. In the connection provided on the side, another extending portion horizontally extending into the building unit and the extending portion on the one building unit side vertically adjacent to the other extending portion are straddled. Characterized in that it is inserted.

[0007] A joint structure between building units according to a second invention of the present invention is provided in one of the upper and lower building units stacked vertically.
The connecting nut and the bolt inserted from the other building unit across the building unit are screwed together, so that both building units are connected to the nut and the bolt.
A joint structure between the building units to be joined by preparative, the
The joining nut is movably housed inside a casing provided in the one building unit, and is provided so as to be unable to idle by being in contact with the inside of the casing when the bolt is screwed. The building units on the upper and lower floors are composed of a plurality of pillars erected and a plurality of beams having a vertical cross-sectional groove shape connecting the ends of the pillars and opening inside the building unit. The casing is provided in the vicinity of the column of the one building unit, and inside an extending portion that extends horizontally in the building unit from near the horizontal portion of the beam, and the bolt is , Near the pillar of the other building unit, and another extending portion horizontally extending from the vicinity of the horizontal portion of the beam into the building unit, and the one of the one vertically adjacently opposed thereto Building uni Characterized in that it is inserted across the extended portion of the up side.

Here, the joining nut is a hexagon nut,
Any shape such as a square nut may be used. Further, the casing may have any shape as long as idling of the joining nut during screwing can be prevented.

[0009]

According to the first aspect of the present invention, a joining nut used for joining the two building units to one of the upper building units and the lower building units, which are vertically stacked and joined, is attached to the casing. It is movably housed inside. For this reason, when joining the upper-floor building unit and the lower-floor building unit, the position of the nut in the casing can be moved to a position that can be screwed with the bolt by inserting a bolt from the other building unit. it can. In this way, even if the upper-floor building unit is placed with a misalignment of the lower-floor building unit, the bolts that straddle both building units are securely screwed into the nuts, and the bolts and nuts are connected between the two building units. Can work together in a joint.

Further , the casing in which the joining nut is housed is formed so as to have a gap in which the joining nut cannot rotate when the bolt is screwed. The stored joining nut abuts against the inside of the casing to prevent its idling. Accordingly, it is not necessary to hold the nut with a tool such as a spanner to prevent idling when the bolt is screwed, so that the bolt can be easily and quickly tightened.

Furthermore, since the fixed Joint provided with the casing toward the outside of the column, the bolt screwed to the joint nut in the casing can also be positioned outside of the column, within the column There is no need to bolt. Therefore,
There is no need to provide a working opening for bolting on the column, and the labor involved can be saved.

Since the connection is open to the inside of the building unit, it is not necessary to insert a hand into a narrow work opening to perform a tightening operation, and the bolt can be easily tightened from the inside of the building unit. Work efficiency can be improved.

The upper and lower connections are provided with extending portions which are vertically opposed to each other and extend to the inside of the building unit. A casing is attached to the extending portions and bolts are inserted therethrough. Since the bolting operation is performed, not only can the bolting operation be easily performed from the inside of the building unit, but also the tightening operation can be performed without inserting a tool or the like deep into the opening of the connection. Therefore, tools and the like can be handled without being disturbed by other portions of the connection, columns, and the like, and in this respect, workability can be significantly improved.

[0014] Moreover, such rather than the extended portion in the pillar or the like which becomes heavy with long, because the handling provided easy Joint, upon which can be provided extending portion itself easily,
The mounting work of the casing can be performed quickly, and the labor of the operator can be reduced.

[0015] In the second invention of the present invention, the by first devised and similar structure, securely screwed to cooperate between both building unit by bolts and nuts extending over the bolt to the nut on both building unit In addition, since the nut is accommodated in the casing in a non-spinning manner, the bolt tightening operation can be performed easily and quickly. In addition, in the second invention, the casing is provided in the vicinity of the pillar, and inside the extending portion horizontally extending into the building unit from near the horizontal portion of the beam opened to the inside of one building unit, Since the bolt is provided over the extension portion and the extension portion on the other building unit side vertically opposed to the bolt,
There is no need to provide a work opening for bolting on the column, which saves labor.

Further , since the beam has a longitudinal cross-sectional groove shape opening inside the building unit, the bolt tightening operation can be easily performed from the inside of the building unit without interference with the beam. Further, not only the bolt tightening operation can be easily performed, but also the tool and the like can be handled without being disturbed by other portions or columns of the connection by the action of the extended portion. Similarly, workability can be significantly improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of a joint structure between building units according to the present invention will be described in detail below.

FIG. 1 is a schematic perspective view of a building unit to which a joint structure between building units according to an embodiment of the present invention is applied , and FIG. 2 is a joint using the joint structure between building units according to the embodiment. FIG. 3 is an exploded perspective view showing the relationship between the upper-floor building unit and the lower-floor building unit, and FIG. 3 is a cross-sectional view of a main part showing a joint structure of the upper-floor building unit and the lower-floor building unit in FIG.

The building unit 10 shown in FIG.
And a vertical cross-sectional groove formed between the upper end and the lower end of the column 12
-Shaped short side upper beam 14A, long side upper beam 14B, short side lower beam 16
A, a rectangular frame is formed by the long side lower beam 16B. At the upper end and the lower end of the column 12, a connection 18 for beam connection is attached.
4A, long side upper beam 14B, short side lower beam 16A, long side lower beam 16
B is installed between the pillars 12. The connection 18 is formed by welding a plurality of bent metal plates, and is provided in a vertical cross-sectional groove shape opened on the inner side of the building unit 10.

Further, as shown in FIG. 2, Joint 18 of the lower end of the upper story building unit 10A includes an upper story building unit 10
A reinforcing member 20 is provided at an extending portion extending to the inside of A, and a bolt insertion hole 24 through which a bolt 22 is inserted is formed in an extending portion of the connection 18 including the reinforcing member 20. The bolt 22 is inserted from the bolt insertion hole 24 across the lower-floor building unit 10B.

Positioning pins 26A and 26B are planted at the top 18A of the connection 18 of the lower-floor building unit 10B, and these positioning pins 26A and 26B are used when the upper and lower floor building units 10A and 10B are joined. Unit 1
Positioning holes 27A drilled in the lower surface of the 0A connection 18;
27B (see FIG. 3), and the lower-floor building unit 10
When the upper-floor building unit 10A is placed on B, the upper-floor building unit 10A and the lower-floor building unit 10B are roughly positioned.

Further, the upper and lower floor building units 10A, 10B
The joining plate 28 is interposed between the upper building unit 10A and the lower building unit 10B at the time of lamination joining of
A bolt insertion hole 30A through which the bolt 22 is inserted and positioning holes 32A, 32B through which the positioning pins 26A, 26B are inserted are formed in the joining plate 28, respectively. The joining plate 28 is for positioning and joining the plurality of lower-floor building units 10B and the upper-floor building units 10A arranged side by side in the left, right, front and rear directions.

The connection 18 on the upper end side of the column 12 of the lower-floor building unit 10B is provided with a reinforcing member 34, and the bolt is inserted through the upper extension of the connection 18 including the reinforcing member 34. A bolt insertion hole 36 through which the bolt 22 is inserted is formed at a position corresponding to the hole 24.

As shown in FIG. 3, the lower-floor building unit 10
A casing 38 is mounted below the bolt insertion hole 36 on the lower surface of the reinforcing member 34 at a portion corresponding to the above-mentioned extended portion of the connection 18 of B, and inside the casing 38 A nut 40 is accommodated, and the bolt 22 that straddles and connects the upper-floor building unit 10A and the lower-floor building unit 10B is screwed into the joining nut 40.

As shown in FIG. 4, the joining nut 40 is a square nut, and the casing 38 is also in the shape of a rectangular frame. The joining nut 40 is accommodated in the casing 38 so as to be freely movable by a predetermined amount. The position of the joining nut 40 can be shifted in the horizontal direction by an amount corresponding to the gap between the casing 38 and the casing 38. Casing 38 and joining nut 4
The size of the gap between 0 and 0 is such that the joining nut 40 comes into contact with the inside of the casing 38 when the bolt 22 is screwed, and the idling of the nut 40 is prevented.

The operation for joining the upper-floor building unit 10A and the lower-floor building unit 10B using the joining nut 40 between the building units constructed as described above is performed as follows.

First, a plurality of lower-floor building units are arranged side by side in the left, right, front and rear directions, and then, as shown in FIG.
Positioning pins 26A, 26B planted on the top 12A of the pillar 12 of the lower-floor building unit 10B are inserted through 2A, 32B, thereby positioning the juxtaposed lower-floor building units 10B, 10B. .

Next, the upper-floor building units 10A, 10A
Is gradually lowered onto the lower-floor building unit 10B, and the positioning pins 26A and 26B are inserted into the positioning holes 27A and 27B of the upper-floor building unit 10A. Then, the upper-floor building unit 10A is guided to the approximate placement position on the lower-floor building unit 10B, and both building units 10A and 10B
Are positioned relative to each other. As a result, the upper surface side of the lower extension of the connection 18 provided in the upper floor building units 10A, 10A and the upper side of the connection 18 provided in the lower floor building units 10B, 10B. The lower surfaces of the extending portions are closely opposed to each other via a joining plate 28, and each of the building units 1
Opened inside 0A and 10B.

Then, the bolt 22 is connected to the upper-floor building unit 1.
Bolt insertion hole 2 from 0A side to lower floor building unit 10B
4, 30A, and 36, and the bolt 22 is screwed into the joining nut 40 housed in the casing 38 of the lower-floor building unit 10B. At this time, even if the upper-floor building unit 10A is mounted on the lower-floor building unit 10B with a slight misalignment, the joining nut 40 is gradually changed to the tapered portion 22A at the tip of the bolt 22 as the bolt 22 is inserted.
Is guided to the proper position, so that the bolt 22 can be easily
In addition, the nut 40 can be quickly screwed into the nut 40. As a result, the bolt 22 is inserted across the two building units 10A and 10B, and the bolt 22 and the nut 40 cooperate to cooperate with each other.
0B.

As described above, according to the present embodiment, the following effects can be obtained. 1) Since the joining nut 40 provided on the lower-floor building unit 10B side can move by a fixed amount in the casing 38, the upper-floor building unit 10A is connected to the lower-floor building unit 10B.
Even if it is placed with a misalignment above, the joining nut 40 is
The bolt 22 can be screwed to the joining nut 40 as a result. This eliminates the necessity of placing the upper-floor building unit 10A so precisely on the lower-floor building unit 10B when constructing the unit-type building unit.
And the lower floor building unit 10B can be easily and quickly joined.

2) Since the internal dimensions of the casing 38 are formed so as to prevent idling of the joining nut 40, there is no need to use a tool such as a wrench when screwing the bolt 22. As a result, The bolt 22 can be easily and quickly tightened.

3) In the lower-floor building unit 10B, since the casing 38 is fixed to the connection 18 provided on the outside of the column 12, the bolt 22 screwed to the joining nut 40 in the casing 38 is also required. Upper building unit 10A
Therefore, it is not necessary to perform bolting inside the pillar 12. Accordingly, it is not necessary to provide a work opening for tightening bolts, particularly in the upper pillar 12, and the labor for the work can be saved.

4) Each connection 18 has a vertical cross-sectional groove shape and is open to the inside of the building units 10A and 10B. There is no need to perform fastening work on the building units 10A, 1
The work of tightening the bolt 22 can be easily performed from the inside of the OB and the work efficiency can be improved.

[0034] 5) each beam 14A which is connected to the pillars 12, 16
A also has a vertical cross-sectional groove shape opened inside the building units 10A, 10B, so that the bolts 22 to be tightened from the inside of the building units 10A, 10B are tightened with the beams 14A, 16A.
A can be performed more easily without interference from A.

[0035] 6) and below the Joint 18, proximate facing vertically and extended portion extending toward the inside of the building unit is provided with a casing 38 is attached to the extended portion, the bolt 22 Is performed, the bolting operation can be easily performed not only from the inside of the building units 10A and 10B, but also the tightening operation can be performed without inserting a tool or the like to the deep side inside the opening of the connection 18. Accordingly, tools and the like can be handled without being disturbed by other portions of the connection 18 or the pillars 12 and the like, and workability can be significantly improved.

[0036] 7) Moreover, such rather than the extended portion in the pillar or the like which becomes heavy with long, because the handling provided easy Joint, upon which can be provided extending portion itself easily, casing Can be mounted quickly, and the labor of the operator can be reduced.

8) The connection 18 is the building units 10A, 10
Beams 14A, 14B, 16A, 18B and pillar 1 constituting B
2 for connecting the beams 14A, 14B, 16
A, 18B and the pillar 12 can be easily and reliably joined together, and since the pillar 12 and the beams 14A, 14B, 16A, 16B are already joined to each other in the state of the building units 10A, 10B alone, the building units 10A, 10B can be made structurally stable, and handling of the building units 10A and 10B by a crane or the like can be facilitated.

[0038] 9) the casing 38 is extended portion proximate opposing upper and lower Joint 18, specifically, provided through the reinforcing member 34 to the lower surface of the upper extension portion in the Joint 38 of the lower floor side The number of connecting nuts 40
And these bolts 22 can be firmly joined so as to sandwich these extended portions , and the upper and lower building units 10
By using the through bolts 22 extending over A and 10B, the bolts 22 need only be tightened in one direction in a downward posture, and the tightening operation can be performed efficiently in a short time.

Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment, and various improvements and design changes can be made without departing from the gist of the present invention. Of course.

For example, in this embodiment, the joining plate 28 is interposed between the upper-floor building unit 10A and the lower-floor building unit 10B. The lower-floor building unit may be directly laminated and joined on the top. Further, in this embodiment, the casing 38 is formed in the shape of a plane quadrangle. However, the shape is not limited to this, and may be any shape such as a hexagon as long as idling of the bolt 22 during screwing can be prevented. .

In this embodiment, the bolts 22 are inserted from the upper building unit 10A to the lower building unit 10B. However, the bolts 22 are inserted from the lower building unit 10B to the upper building unit 10A. You may.

[0042]

[Effect of the invention] As described above, the first aspect of the invention is as follows.
According to the invention, when the building unit on the upper floor and the building unit on the lower floor are laminated and joined, the bolt can be easily screwed into the nut even if the positions of both building units are slightly misaligned. . In addition, since the joining nut is stored in the casing in a non-spinning manner, when joining the building unit on the upper floor and the building unit on the lower floor, the bolting work between the two units can be easily and quickly tightened. . Further, it is not necessary to provide a work opening for fastening bolts in the pillars constituting the building unit, and the labor for the work can be saved. And since a connection is opened in the inside of a building unit, bolting can be easily performed from the inside of a building unit. The upper and lower connections are provided with an extended portion that is vertically opposed and extends toward the inside of the building unit, and a casing is attached to the extended portion, and bolts are inserted. In addition, the bolting operation can not only be easily performed from the inside of the building unit, but also can be performed without inserting a tool or the like deep into the opening of the connection 1. Therefore, tools and the like can be handled without being disturbed by other portions of the connection, columns, and the like, and in this respect, workability can be significantly improved. Moreover, since such an extended portion is provided not in a long, heavy column or the like but in a connection that is easy to handle, the extended portion itself can be easily provided, and the casing mounting work can be performed quickly. Can be carried out quickly and the labor of the operator can be reduced.

[0043] According to the second invention of the present invention, can be joined together cooperate to straddle bolt to the nut on both building unit between securely screwed in both building unit with bolts and nuts, also nut Does not run idle in the casing, so that bolts can be easily and quickly tightened, and further, there is no need to provide a work opening for bolting in the column, and the labor required can be saved. And since a beam is a longitudinal section groove shape opened to the inside of a building unit, bolting work can be easily performed from the inside of a building unit without being interfered by a beam. Moreover, not only can the bolt tightening operation be easily performed, but also the tool can be handled without being disturbed by other portions or columns of the connection by the action of the extended portion. Similarly, workability can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a connection between building units according to an embodiment of the present invention;
It is a schematic perspective view of the building unit to which a structure is applied .

FIG. 2 is an exploded perspective view showing a relationship between an upper-floor building unit and a lower-floor building unit which are joined by using the joining structure between the building units.

FIG. 3 is a sectional view of a main part showing a joint structure between an upper building unit and a lower building unit in FIG. 2;

FIG. 4 is a plan sectional view of a casing provided in the lower-floor building unit and a joining nut between the building units.

FIG. 5 is a sectional view of a main part of the upper and lower floor building units after assembly.

[Explanation of symbols]

 10A Upper-floor building unit 10B Lower-floor building unit 12 Pillar 14A 14B 16A 16B Beam 18 Connection 22 Bolt 24 30A 36 Bolt insertion hole 26A 26B Positioning pin 28 Joining plate 38 Casing 40 Joining nut

Claims (2)

(57) [Scope of request for utility model registration] 1. A connecting nut disposed in one of a building unit and a building unit, which are vertically stacked, and a building nut extending from the other building unit to the building unit. by the insertion is a bolt is screwed Te, both the building unit the nut and ball
A joint structure between building units to be joined with a bolt , wherein the joining nut is movably housed inside a casing provided in the one building unit, and when the bolt is screwed together. This casing is provided so as to be unable to idle by being abutted on the inside of the casing, and the casing is formed into a vertical cross-sectional groove shape opened to the inside of the one building unit, and is provided on the outer side of a pillar constituting the building unit. In the provided connection, it is provided inside the extending portion horizontally extending into the building unit, and the bolt has a longitudinal sectional groove shape opened to the inside of the other building unit. In a connection provided on the outer side of a pillar constituting the building unit, another extending portion horizontally extending into the building unit and the upper and lower portions which are vertically opposed to each other. Joining structure between a building unit, characterized in that it is inserted across the extended portion of the square of the building unit side. 2. A connecting nut disposed in one of the upper-floor building units and the lower-floor building units stacked vertically, and the other building unit straddles these building units. by the insertion is a bolt is screwed Te, both the building unit the nut and ball
A joint structure between building units to be joined with a bolt , wherein the joining nut is movably housed inside a casing provided in the one building unit, and when the bolt is screwed together. The building unit on the upper and lower floors is provided so as to be unable to spin by being abutted on the inside of the casing, and a plurality of pillars that are erected,
An end of each column is connected to each other, and is constituted by a plurality of beams having a vertical cross-sectional groove shape opened to the inside of the building unit. The casing is near the column of the one building unit, and The bolt is provided inside an extending portion extending horizontally into the building unit from near the horizontal portion of the beam, and the bolt is provided near the column of the other building unit and at the horizontal portion of the beam. It is characterized by being inserted across another extension part horizontally extending from the vicinity into the building unit and the extension part on the one building unit side vertically opposed to the other extension part. Structure between building units.