JP2798239B2 - Building material fasteners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a material to be joined (wood material, steel frame, concrete, etc.) on a rod-shaped material passed through a wood material (wood, structural glued wood, LVL, etc.). The present invention relates to a technique for fixing a woody material and a material to be joined by fixing them.

[0002]

2. Description of the Related Art Conventionally, the following method has been used to join a column and a beam by fixing a steel bar and a beam of a wooden material through a column of a wood. FIG. 11 is an elevational sectional view of a joint portion between a pillar member 202 and a beam member 201 made of a conventional woody material. First, a plate-shaped metal member 203 is fixed to an end of each beam member 201 (specific fixing means is omitted in FIG. 11, but, for example, the metal member 203 is vertically attached from the surface of the beam member 201 side). The plate member formed by being ejected is inserted into a notch formed at an end of the beam member 201, and the plate member inserted into the notch and the end portion of the beam member 201 are fastened with bolts and nuts.

The metal members 203 are fixed to the beam 201 and project from both sides of the end of the beam 201. A bolt hole 204 is formed in each of the projecting portions. A hole 2 is formed in the column member 202 by penetrating from one surface facing the other to the other surface in a direction perpendicular to the axial direction of the column member 202.
Open 05. On the two surfaces of the column member 202 where the holes 205 are open, the ends of the beam member 201 to which the metal fittings 203 are fixed,
The column 201 is sandwiched from both sides, and the column 202
Holes 204 and 20 of two metal fittings 203 facing each other across
4 and a steel bar 206 is passed through the hole 206 of the column member 202. In this state, both ends 207 and 208 of the steel bar 206
Protruding from. The steel bar 206 has both ends 207,
An external thread is formed only on the surface of 208. A nut 209 is screwed into the male screw to tighten the column member 202 and the beam member 201 together.

[0004]

However, when a building is constructed by the above-described technique, the steel bar 206 is only inserted into the hole 205 of the column member 202. In the case of using a wooden material as a building material, and in a building larger than the size of a general two-story wooden house such as a gymnasium, a warehouse, and a factory), the pressing force due to the moment transmitted from the beam 201 to the column 202 is large. For example,
As shown in FIG. 12 (in FIG. 12, a moment acting such that the column member 202 rotates clockwise) is applied.
06 slides in the hole 205 and the end (the metal fitting 203) of the beam 201 is sunk into the column 202, so that the required strength cannot be obtained. However, there is a problem that the rigid joining cannot be sufficiently performed.

The present invention relates to a technique for joining a wooden material and a material to be joined by fixing the material to be joined (such as a beam) to a rod-shaped material passed through the wooden material (such as a pillar material). An object of the present invention is to provide a technique capable of obtaining a required strength and rigidly joining a wooden material and a material to be joined, even when used for construction of a structure.

[0006]

According to a first aspect of the present invention, there is provided a connecting member for a building material used for connecting a beam to a wooden pillar. And a pair of female screws into which bolts are screwed from both ends, respectively, and a tool for screwing work is provided on the end surface. A bar having a cutout to be fitted, a joint on one side, and a bolt hole for passing a bolt on the other side, and a bolt is screwed into the female screw from the bolt hole to be fixed to the bar. A joint tool, having a male screw to be screwed into a female screw formed on the end face of the beam material,
A bar-shaped material having a female screw into which a bolt is screwed from one end and having a cutout on an end face where the female screw is opened and a notch for engaging a tool for screwing work, a joint on one side, and a bolt passing on the other side A bolt for fixing the rod-shaped material by screwing a bolt from the bolt hole into the female screw, and a bolt / nut across the joint of the joint and the joint of the joint And a connecting member to be fixed.

According to a second aspect of the present invention, there is provided a fastener for a building material according to the first aspect, wherein the rod-shaped member screwed into the female screw of the column member with a male screw and female screws at both ends of the rod-shaped material. A pair of the joints respectively fixed by bolts to be screwed in, a pair of the bar-shaped members screwed into the female screw of the pair of beam members with a male screw, and a female screw at one end of the pair of bar-shaped materials, respectively. A pair of the joints respectively fixed by bolts to be screwed, and a pair of the coupling members respectively fixed across each joint of the pair of joints and each joint of the pair of joints, Equipped configuration,
It is characterized by.

[0008] The invention described in claim 3 is claim 1 or 2.
The coupling device for a building material according to claim 1, wherein the joint member fixed by a bolt screwed into a female screw at one end of the rod material, which is screwed into a female screw of the column material with a male screw, includes an end surface of the rod material. In the above has a backing plate applied to the surface of the column material, the joint is formed by a central vertical plate protruding from this backing plate and upper and lower reinforcing plates, the female screw of the beam material with a male screw The joint fixture fixed by a bolt screwed into a female screw at one end of the bar-shaped member to be screwed has a backing plate applied to an end surface of the beam material including an end surface of the bar-shaped material, and from the backing plate. The joint is formed by a protruding central vertical plate and its upper and lower reinforcing plates, and the connecting member is connected to each of the vertical plates and fixed to the connecting plate.
And a connecting plate fixed across each of the reinforcing plates.

[0009]

According to the first aspect of the present invention, the rod-shaped material is screwed into the female screw that penetrates the pillar made of wood material with a male screw, so that the rod-shaped material is fixedly penetrated into the pillar, and the bolt of the joint fixture is further fixed. By screwing a bolt from the hole into the female screw of the rod-shaped material, the fitting is fixed to the end face of the rod-shaped material which is pierced and buried and fixed to the column material by screw connection. In addition, by screwing the rod-shaped material into the female screw of the wooden material with a male screw with a male screw, the rod-shaped material is fixed to the beam material, and further, a bolt is screwed into the female screw of the rod-shaped material from the bolt hole of the fitting, A joint is fixed to the end surface of the rod-shaped material embedded and fixed to the beam by screw connection. In this way, the joint fixture fixed to the end face of the rod-shaped material embedded and fixed by penetrating the column material by screw connection, and the joint fixture fixed to the end face of the rod-shaped material embedded and fixed to the beam material by screw connection, respectively By fixing the connecting member straddling the joint with bolts and nuts, the column member and the beam member can be rigidly joined.
At this time, the pressing force due to the moment transmitted from the beam material side to the bar-shaped material is obtained by the fact that each thread of the male screw on the surface of the bar-shaped material bites into the wood fiber forming the female screw of the column material and the beam material. The screws are almost equally distributed and transmitted from each thread of the male screw on the surface to the surrounding wood, and can be supported by the stress load of the column material. Therefore, even when a large force is applied from the beam material side to the column material side, the rod-shaped material moves rigidly, for example, in a hole opened in the column material, and the beam material does not sunk into the column material, and the rigid connection is performed. Can be kept. In addition, if each joint is fixed to the column member and the beam in advance, the joints provided on these joints are abutted, and the connecting member is overlapped so as to straddle these joints. By fixing the connecting member with a bolt and a nut, the column member and the beam member can be connected. For example, if the work of fixing fittings to pillars and beams is carried out in a factory or the like, at the construction site, the connecting material is simply overlapped over the joints and fixed with bolts and nuts, The connection between the beam and the beam is completed. By the way, when screwing a rod-shaped material into a female screw of a column material and a beam material with a male screw, there is a notch on an end surface of the rod-shaped material, which is engaged with a tool for screwing work. The bar can be securely screwed to the surfaces of the column and the beam by turning the tool.

[0010] According to the second aspect of the present invention, a pair of joints respectively fixed to both ends of a rod-shaped material penetrating and buried in the column member by screw connection, and a pair of beam members are respectively screwed to the pair of beam members. By connecting a pair of joints respectively fixed to one end of a pair of rod-shaped members embedded by coupling with a pair of joint members respectively fixed by bolts with a pair of connecting members straddling each joint, both sides of the column member are sandwiched. Beam members can be connected to each other.

According to the third aspect of the present invention, the backing plate of the joint fixture fixed by bolting to one end of the rod-shaped member which is screw-connected to the column and penetrated and buried therein includes the end surface of the rod-shaped member. Abutment plate of a fitting fixed by bolting to one end of a rod material embedded and screwed to the beam material and abutting against the end surface of the beam material including the end surface of the rod material, However, due to the connecting plates straddling the respective vertical plates and the connecting plates straddling the respective reinforcing plates, a reliable connection state is established.

[0012]

【Example】

[First Embodiment] This embodiment is an example in which a beam of wood material (material to be joined) is connected to one side of a pillar of wood material.

FIG. 3 is a front view of a joint portion between a pillar 300 made of wood material and a beam 400, and FIG. 4 is a plan view of the same, and FIG.
FIG. 4 is a view on arrow AA in FIG. 3. FIG. 6 is a plan view of a fastener 1 which is an example of a fastener for building materials according to the present invention.
FIG. 7 is a plan view of the same. 3 to 6 show a part of the member, a cutout, or a cross-sectional structure.

The joint 1 is made up of steel bars 2 and 4, joint fittings 3, an iron plate 5, and iron plates 6, 6 'and 7 for mounting.

The coupling 1 has, for example, four steel bars 2. FIG. 8 is a front view of one end 24 of the steel bar 2 (partially cut away), and FIG. 9 is a side view of the same. The steel bar 2 is a round bar, and has an external thread 20 formed all around. The shaft portion of one end 24 of the steel bar 2 has
A hole 21 is opened toward the axial center of the steel bar 2,
The female screw 2 is cut on the entire surface of the hole 21. Also,
This one end 24 has, for example, four notches 2
3 is engraved. The other end 25 of the steel bar 2 has the same structure as the one end 24 except that the notch 23 is not cut, and a detailed description is omitted.

The coupling 1 has, for example, two fittings 3. The joint fitting 3 includes a joint 30 on one side and a rectangular iron plate 32 having, for example, four bolt holes 31 formed on the other side. The joint 30 is, for example, one obtained by welding an iron plate or a shape steel to one surface of an iron plate 32. For example, one joint plate 33 and two reinforcing plates 34 are welded, and the cross section thereof becomes an H shape. Is formed.
For example, three bolt holes 35 are formed in the joint plate 33.
Each reinforcing plate 34 has, for example, two bolt holes 3
6 is open.

The male screw 40 of the steel bar 4 is the male screw 20 of the steel bar 2.
The hole 41 is the same as the hole 21, the female screw 42 is the female screw 22, the notch 43 is the notch 23, and the one end 44 is the same as the one end 24. 8 and 9 and their detailed description is omitted. Steel bar 4 of steel bar 2
The difference from the first embodiment is that the hole 41 and the female screw 42
4 and not at the other end 45.

The mounting iron plate 6 is a rectangular iron plate having bolt holes 60 formed therein. The mounting iron plate 6 ′ is smaller than the mounting iron plate 6 and is a rectangular iron plate having bolt holes 60 ′ formed therein. It is. The mounting iron plate 7 is also a rectangular iron plate having a bolt hole 70 formed therein.

Next, the operation of this embodiment will be described. At the end of the beam member 400, a beam member 400
The female screw 401 is opened in the axial direction. The steel bar 4 is screwed into the female screw 401 by a screw action. This work is performed with a manual tool such as a spanner or a handle having a convex portion fitted into the notch 33. In this state, both ends of the steel bar 4 are female screws 3
Looking from 01.

The column member 300 is penetrated from one surface 302 to the other opposite surface 303, and a female screw 301 is opened using a gymnast or the like. The steel bar 2 is screwed into the female screw 301 by a screw action. This work is done with notch 2
3 is performed with a manual tool such as a spanner or a handle having a convex portion to be fitted. In this state, both ends of the steel bar 2 are female screws 30.
I'm peeking from one. On one surface 302 of the pillar 300,
Apply the iron plate 5. The iron plate 5 is, for example, rectangular and has a bolt hole 51 formed therein. The bolt 8 is passed through the bolt hole 51 in a state where the iron plate 5 is applied to one surface 302 of the column member 300, and the iron plate 5 is fixed to the female screw 22 on the end 24 side of the steel bar 2 by screw action.

One of the fittings 3 is a joint 30 of an iron plate 32.
Is formed on the other surface 303 of the pillar 300.
Then, the bolt 8 is passed through the bolt hole 31, and the joint fitting 3 is screwed and fixed to the female screw 22 on the end 25 side of the steel bar 2. Similarly, the other surface of the steel plate 32 where the joint 30 is not formed is applied to the end of the beam member 400, the bolt 8 is passed through the bolt hole 31, and the steel bar 4
Is fixed to the female screw 42 at the end by screw action.

The column member 300 to which the joint fitting 3 is fixed and the beam member 400 to which the joint fitting 3 is fixed are attached to the mounting iron plates 4, 4 ',
5 are combined as follows. First, the tip of the joint 30 of the joint fitting 3 attached to the column member 300 and the beam member 400
Butts the ends of the joints 30 attached to the joints. In this state, the mounting iron plate 6 and the mounting iron plate 6 ′ are connected to both reinforcing plates 30,
30, the two reinforcing plates 30, 30 are overlapped so as to sandwich them from above and below, and the bolt 8 is inserted into the bolt holes 60, 36,.
60 'and tighten with nut 8'. Further, the two mounting iron plates 7 are straddled by the two joint plates 33, 33, and the two joint plates 33, 33 are overlapped so as to sandwich them from the left and right, and the bolt 8 is inserted into the bolt holes 70, 35, 70.
And tighten it with the nut 8 '. FIG. 10 is an exploded view for explaining such bolt tightening. In the figure,
The superposition of the mounting iron plates 6, 6 ', 7 on the two joints 30, 30 is indicated by arrows.

According to this embodiment, a male screw 20 is cut on the surface of the steel bar 2 and is fastened by a screw action to a female screw 301 which is opened through a pillar 300 made of wood. The end portion 25 and the beam member 400 can be connected via the joints 30, 30, and the male screw 20 on the surface of the steel bar 2 can be used.
Is pressed into the fiber of the column member 300, the pressing force due to the moment transmitted from the beam member 400 to the steel bar 2 is almost uniformly distributed from the respective screw member to the surrounding wood material. It is transmitted and can be supported by the stress load of the column member 300, and since the steel bar 2 does not move in the hole of the female screw 301 and the beam member 400 side does not sink into the column member 300, it is used for construction of a large-scale wooden structure. Even so, the required strength can be obtained and the beam member 400 and the column member 300 can be rigidly joined.

In a factory or the like, the column member 300 and the beam member 40 are used.
0, if the joint fittings 3 are fixed in advance as described above, the column member 300 and the beam member 400 to which the joint fittings are fixed are carried into the construction site, and the two joint fittings 30 of the two joint fittings 3 are fixed.
Each of the joints 30 is attached to each of the mounting iron plates 6, 6 ', 7 with bolts 8 and nuts 8' in a state where the mounting iron plates 6, 6 ', 7 are overlapped so as to straddle both the joints 30. Since the connection between the column member 300 and the beam member 400 is completed only by fixing, the connection between the wooden column member 300 and the beam member 400 can be easily performed in the same manner as in a building made of steel, thereby improving the efficiency of the connection work. Can be done.

[Second Embodiment] This embodiment is an example in which a wooden material beam (material to be joined) is connected to both sides of a wooden material pillar.

FIG. 1 shows a wooden pillar 300 and a beam 400.
1 is an exploded front view of a joint 1 which is an example of a joint for building materials of the present invention. Members having the same reference numerals as those in FIGS. 3 to 9 are the same members as in the first embodiment, and a detailed description thereof will be omitted.

The configuration of this embodiment differs from that of the first embodiment in that the joint fitting 3 is also fixed to one surface 302 of the column member 300 instead of the iron plate 5 of the first embodiment. Another point is that another beam member 400 is prepared, and the beam member 400 is also connected to the surface 302 side.

The fixing of the joint fitting 3 to the column member 300 or the beam member 400 and the connection of the joint fittings 3 using the iron plates 6 and 6'7 for attachment are the same as those in the first embodiment. Omitted.

According to this embodiment, the same operation and effect as those of the first embodiment are obtained, and both ends 24 and 25 of the steel bar 2 are provided.
Then, the joint fittings 3 are respectively fixed, and the beam members 400 can be connected to both sides of the column member 300.

It should be noted that the present invention is not limited to only the above embodiments, and various modifications are possible.
For example, in each of the first and second embodiments, a pillar 300 made of a wooden material is used.
And the joining of the wooden material 400 as an example,
In addition, the joining tool 1 may be used for joining wood materials.

Further, the material to be joined is not limited to a wood material as in the first and second embodiments, but various materials such as a concrete material and a steel frame can be used. Conclusion
If the mixture is not a wooden material (or even if it is a wooden material), the most appropriate connection type for the building material is used instead of the connection type using the joint fittings 3, the iron plates 6, 6 ', and 7 for mounting. May be used. For example, if the material to be bonded is concrete
When joining with a wood material as a material, it is conceivable to embed an anchor bolt in the concrete material as a joint on the concrete material side.

In the first embodiment, the steel bar 2 does not have an internal thread 22 at its end portion 24 (ie, the steel bar 2 is
The iron plate 5 may not be fixed to one surface 302 of the pillar 300.

However, if female threads 22 are formed at both ends 24 and 25 of the steel bar 2 as in the first and second embodiments, the second
As in the embodiment, the two bar members 400 can be joined to the column member 300 with one bar steel 2, and there is no need to prepare two steel bars, which is economical.

Further, since only one work of fixing the steel bar 2 to the woody material (work of forming an internal thread in the woody material and fixing the steel bar 2 by the screw action) is required, the work time can be reduced. .

Furthermore, one type of steel bar 2 can be used for connecting the beam member 400 to one side of the column member 300 or for connecting the beam member 400 to both.
The versatility of the coupling tool 1 can be improved.

As described above, according to the construction material connecting tool according to the first aspect of the present invention, a joint tool fixed to the end face of a rod-shaped material penetrated and embedded in a wooden material column by a screw connection, A joint member fixed to the end surface of a bar material embedded in the beam material by screw connection, the connecting material straddling each joint is fixed by bolts and nuts, and the column material and the beam material are rigidly joined, so that the rod material is The male screw of the rod bites into the wood fiber of the female screw of the column and beam, and the pressing force due to the moment transmitted from the beam to the rod is almost evenly distributed from the male screw of the rod to the surrounding wood. It is distributed and transmitted, and can be supported by the stress load of the column. Therefore, even when a large force is applied from the beam side to the column side, the bar-shaped member does not move in the hole formed in the column member, for example, and the beam member does not sink into the column member. Even when used for structural construction, the required strength can be obtained and the rigid connection between the column and beam can be maintained. In addition, the connection between the wooden pillar and the beam can be easily performed by the same operation as in a building made of steel, and the efficiency of the connection operation can be improved. In addition, for example, in the operation of connecting the respective beam members to both sides of the column member, it is possible to use only one bar-shaped member and to connect them, which is economical. Then, when screwing the bar into the female screw of the column and beam with a male screw, a tool is engaged with the notch on the end surface of the bar, and the tool is turned to form a bar up to the surface of the column and beam. The material can be screwed securely.

According to the connecting member for building material according to the second aspect of the present invention, in addition to the effect obtained by the first aspect of the present invention, a beam member can be connected to both sides of the column member with the column member interposed therebetween. Such advantages can be obtained.

Further, since only one work of fixing the bar-shaped material to the woody material (work of forming a female screw in the woody material and fixing the steel bar by the screw action) is required, the working time can be reduced.

Further, when one kind of rod-shaped material is used, for example, when a beam is joined to one side of a wooden pillar,
Since the present invention can be used also in a case where beams are joined to both sides, the versatility of the joint of the present invention for building materials can be enhanced.

According to the third aspect of the present invention, in addition to the effects obtained by the first or second aspect of the present invention, in addition to the effects obtained by the first or second aspect of the present invention, the backing plate of the joint includes a beam including the end face of the rod-shaped material. An advantage is obtained in that the joints are securely connected to each other by the plurality of connecting plates that are in contact with the end surfaces of the members or beams and straddle the respective vertical plates and reinforcing plates.

[Brief description of the drawings]

FIG. 1 is a front view of a joint portion between a column member and a beam member according to a second embodiment of the present invention.

FIG. 2 is an exploded front view of a coupler according to a second embodiment of the present invention.

FIG. 3 is a front view of a joint portion between a column member and a beam member according to the first embodiment of the present invention.

FIG. 4 is a plan view of a joint portion between a column member and a beam member according to the first embodiment of the present invention.

FIG. 5 is an exploded front view of the coupler according to the first embodiment of the present invention.

FIG. 6 is an exploded plan view of the coupler according to the first embodiment of the present invention.

FIG. 7 is a view on arrow AA of FIG. 1 in the first embodiment of the present invention;

FIG. 8 is a front view of one end of a steel bar screwed into a pillar according to the first embodiment of the present invention.

FIG. 9 is a side view of one end of a steel bar screwed into a column according to the first embodiment of the present invention.

FIG. 10 is an exploded view illustrating the tightening of bolts of the joint fitting according to the first embodiment of the present invention.

FIG. 11 is an elevational sectional view of a joint portion between a pillar and a beam made of a conventional woody material.

FIG. 12 is an elevational cross-sectional view of a joint portion between a conventional wooden pillar and a beam.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coupling tool 2 Steel bar 3 Joint fitting 4 Steel bar 6 Iron plate for installation 6 'Iron plate for installation 7 Iron plate for installation 8 Bolt 8' Nut 20 Male screw 22 Female screw 30 Joint 31 Bolt hole 300 Pillar of wood material 400 Beam of wood material Material (bonded material)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04B 1/58 508 E04B 1/26

Claims (3)

(57) [Claims] 1. A joint (1) for a building material used to join a beam (400) to a pillar (300) made of a wooden material, wherein the fastener (1) penetrates from one surface of the pillar (300) to an opposite surface. Male screw (20) that is screwed over the entire length of the female screw (301) formed as a pair, and a pair of female screws (2) into which bolts are screwed from both ends.
A bar-shaped material (2) having a notch (23) on the end face with which a tool for screwing work is engaged, and a joint (30) on one side and a bolt for passing a bolt on the other side. A bolt (31), a bolt (31) through which a bolt is screwed into the female screw (22) to be fixed to the rod-shaped member (2), and a beam (400) ) Has a female screw (40) screwed into a female screw (401) formed on the end face, has a female screw (42) into which a bolt is screwed from one end, and is screwed into an end face where the female screw (42) is opened. A rod-shaped member (4) having a notch (43) with which a working tool is engaged, a joint (30) on one side, and a bolt hole (31) for passing a bolt on the other side. A fitting (3) which is screwed into the female screw (42) from the bolt hole (31) and is fixed to the rod-shaped material (4); a fitting (30) of the fitting (3) and the fitting ( 3) Bolt over the joint (30) Connecting material fixed by nuts (6, 7)
A fastener for a building material, comprising: 2. A male screw (20) is attached to the female screw (301) of the column member (300).
And a pair of joints respectively fixed by bolts screwed into female screws (22, 22) at both ends of the rod-shaped material (2).
(3,3), and external threads (4,4) on the female threads (401,401) of the pair of beam members (400,400).
(0,40), each of which is fixed by a pair of said rod-shaped members (4,4) screwed in at each end, and bolts respectively screwed into female screws (42,42) at one end of the pair of rod-shaped members (4,4). A pair of the joints (3, 3), a joint (30, 30) of the pair of joints (3, 3), and a joint (30, 30) of the pair of joints (3, 3) ), And a pair of the connecting members (6, 7, 6, 7) respectively fixed over the connecting member. 3. A male screw (20) is attached to the female screw (301) of the column member (300).
The fitting (3) fixed by a bolt screwed into a female screw (22) at one end of the rod-shaped material (2) screwed in,
It has a backing plate (32) applied to the surface of the column member (300) including the end surface of the rod-shaped member (2), and a central vertical plate (33) protruding from the backing plate (32) and The joint (30) is formed by the upper and lower reinforcing plates (34, 34), and one end of the rod-shaped member (4) screwed into the female screw (401) of the beam (400) with a male screw (40). The fitting (3), which is fixed by a bolt screwed into the female screw (42), includes the rod-shaped material (4).
A patch plate applied to the end face of the beam member (400) including the end face of
(32), and the joint is formed by a central vertical plate (33) protruding from the backing plate (32) and reinforcing plates (34, 34) above and below the central vertical plate (33).
(30) is formed, the connecting member (6, 7) is a connecting plate (7) fixed across each of the vertical plates (33, 33), and each of the reinforcing plates (34, 34) And a connecting plate (6) fixed across the joint.