JPH08120778A - Brace fixing metal fitting - Google Patents

Abstract

PURPOSE: To enable the fixation of a brace with the less labor and sufficiently develop the strength of the brace without excessively increasing dimension, as for a fixing metal fitting for fixing the brace for a construction having a wooden structure, on a vertical member and/or a horizontal member. CONSTITUTION: A brace fixing metal fitting consists of a nearly hexagonal metal plate, and the inside angle nipped by the first and the second sides 11 and 12 and the inside angle nipped by the first and the sixth sides 11 and 16 is set to 135-150 deg., and each nail hole for the fixing on a vertical member or a horizontally laid member is formed at the position set along the second side 12 and the position set along the sixth side. Further, a plurality of nail holes for the fixation are formed in dispersion on the brace from the third side 13, the fourth side 14 and the fifth side to the center part. Further, the opposed sides are set parallelly and formed to the equal length, and the shape and the arrangement of the nail holes are desirably set to be symmetrical with respect to the vertical half equally divided line 4 of the first side 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bracing fixture for fixing a bracing to a column or a horizontal member in a wooden frame structure.

[0002]

2. Description of the Related Art Generally, in a wooden frame structure, a member (vertical member) arranged in a substantially vertical direction such as a pillar or a stud, and a beam,
A braces are provided in a rectangular frame surrounded by a member (horizontal bridge) that is horizontally installed between a vertical member and another vertical member, such as a body difference or a base, so that horizontal force acting on the structure can be obtained. In contrast, it has increased resistance to prevent excessive deformation and collapse of the structure. In such a structure, in order to fix the braces made of wood or the like to the vertical members and the horizontal members, conventionally, bracing fixtures as shown in FIGS. 9 and 10 have been used. Such a bracing bracket is used for fixing the bracing 2 to the frame body formed by the columns 3, the base 4, the beams 5, etc., as shown in FIG.

Brace fixing metal fitting 101 shown in FIGS. 8 and 9.
Is a steel plate and has a substantially rectangular bracing contact portion 101c.
And a vertical member abutting portion 101a and a horizontal member abutting portion 101b extending from two adjacent edges of the brace abutting portion 101c so as to be flush with the brace abutting portion 101c. And have. Plural nail holes 131 are provided in the vertical member abutting portion and the horizontal member abutting portion, respectively. In addition to the plurality of nail holes, a bolt hole through which a bolt can pass is provided in the bracing contact portion. 132 is provided. Further, the bracing contact portion 101c and the vertical member contact portion 1
01a and on the boundary line between the brace contact portion 101c and the horizontal member contact portion 101b, a positioning hole 133 is formed.
Is provided.

When the brace 2 is fixed using the brace fixing metal fitting 101, a hole for a bolt is previously formed in the brace 2 and the bolt 71 is used for the bolt of the brace contact portion 101c. The hole 132 and the hole for the bolt of the brace 2 are passed through, and the nut 72 is tightened. Furthermore, the bracing contact part 1
The brace fixing fitting 101 and the brace 2 are fixed by driving a nail into the brace 2 through the nail hole 131 of 01c. In addition, a plurality of nails are attached to the nail hole 1 of the vertical member contact portion 101a.
It drives into the pillar (vertical material) 3 through 31 to fix the vertical material contact portion 101 a to the pillar 3. Similarly, the horizontal member abutting portion 10
1b is fixed to the base 4 (horizontal member). As a result, the braces 2 are fixedly supported by the braces 3 and the base 4 by the bracing fixtures 101.

A brace fixing member 201 shown in FIG. 10 includes a brace contact portion 201c similar to the brace fixing member 101 shown in FIGS. 8 and 9, and two adjacent sides of the brace contact portion 201c. Each of them has a vertical member abutting portion 201a and a horizontal member abutting portion 201b that extend so as to be flush with the brace abutting portion. However, in this bracing fixture, the vertical and horizontal dimensions are larger than those of the bracing fixture 101 shown in FIG. 9, and the nails provided at the horizontal member abutting portion and the vertical member abutting portion. The number of holes 231 is also increased. This bracing bracket is mainly used when constructing a three-story wooden house, and using this bracing bracket, the horizontal material, vertical material and braces are fixed to form a bearing wall. When this is done, a structure having a proof strength of about 2.0 times the wall magnification with respect to the horizontal force is obtained.

Here, the wall magnification is a value indicating the resistance force (proof strength) to the horizontal force of the load bearing wall, and the load bearing wall receives a horizontal force of 130 kg per meter, and is 1/120.
The ratio of the resistance force is set to 1.0 when the shear deformation of radian is generated. For example, the yield strength of a bearing wall having a length of 0.91 meters and a wall magnification of 1.0 is 130 kg × 1.
0 × 0.91 m = 118 kg, that is, 118 kg.

[0007]

However, as described above,
The conventional bracing fixture has the following problems. That is, the connection between the bracing fixture and the bracing mainly depends on the tightening force of the bolt, but there is a gap between the bolt hole drilled in the bracing and the inserted bolt. If the nut is loosened due to dry shrinkage of the bracing material, the bracing fixture and the bracing will be displaced, and the expected bracing strength (proof strength reinforcement by bracing) will not be exhibited. Therefore, in order to obtain a brace fixing metal fitting suitable for a structure having a greater resistance, it is necessary to increase the size of the brace fixing metal fitting and use many nails together. However, it is inconvenient to handle if the bracing bracket is upsized, and
There is a risk that it may interfere with the attachment of other members such as wall materials.

For example, as shown in FIG. 11, when an attempt is made to attach a wall base board 6 to a pillar 3 and a horizontal member 4 (base, beam), a joint portion between the pillar 3 and the horizontal member 4 is attached. If a bracing fixture 201 having a large size is used in the above, a nail or a screw cannot be driven into this portion, and the space between the nails 81 or the screws for fixing the board is too wide. Also, because the size of the bracing bracket is large,
There is also a problem that the positions for attaching the plates for joining the columns and the horizontal members overlap, and the plates cannot be attached.

On the other hand, since the force acting on the braces from the frame is transmitted through the bolts, stress is concentrated on the periphery of the bolt holes, and cracks are likely to occur in the braces. Moreover, it is necessary to drill holes for bolts accurately in the braces so as to correspond to the holes for bolts in the abutment part of the braces, and there is also a problem that a lot of labor is required as well as tightening the bolts. .

The present invention has been made in view of the above-mentioned problems, and an object thereof is to fix a braces to a vertical member or a horizontal member with a small amount of labor without increasing the size. The purpose of the present invention is to provide a bracing fixing metal fitting capable of exerting sufficient bracing strength.

[0011]

In order to solve the above-mentioned problems, the invention according to claim 1 is to fix the braces in a wooden structure to a vertical member and / or a horizontal member. A metal fitting, which is made of a substantially hexagonal metal plate and has six sides in order of a first side, a second side, a third side, a fourth side, a fifth side, and a sixth side. And when the first
Angle between the side of the first side and the second side, and the side of the first side and the sixth side
The interior angle between the sides of the second side is 135 ° or more and 150 ° or less, and the vertical or horizontal member is located near the edge along the second side and near the edge along the sixth side. It has a plurality of nail holes for fixing the bracing fixture, and from the third side, the fourth side and the fifth side facing the first side,
It is intended to provide a bracing fixture for disposing a plurality of nail holes for fixing to a bracing, distributed over a central portion of the hexagonal metal plate.

According to a second aspect of the present invention, in the bracing fixture of the first aspect, the first and fourth sides and the second and fifth sides of the substantially hexagonal metal plate are provided. , And the third side and the sixth side are parallel to each other and have the same length.

According to a third aspect of the present invention, in the bracing fixture according to the second aspect, the shape of the outer periphery of the metal plate and the arrangement of the nail holes are set with respect to the vertical bisector of the first side. The shape of the outer periphery of the metal plate is symmetrical with respect to a line passing through the apex angle between the second side and the third side and the apex angle between the fifth side and the sixth side. To do.

In the above-mentioned claims 1 to 3, the members arranged substantially vertically are, for example, columns and studs. Further, the members laid in the lateral direction are, for example, a beam, a body difference, a base, or the like. Further, the nail hole is not limited to a nail, and a screw or the like can be inserted and used.

[0015]

In the bracing fixture according to claim 1, a nail is inserted into a nail hole provided from the third side, the fourth side and the fifth side to the center of the hexagonal metal plate. , The bracing fixtures are fixed to the braces by striking the ends of the braces. Furthermore, the portion along the second side and the portion along the sixth side are brought into contact with the vertical member and the horizontal member, respectively, and nails are inserted into the respective nail holes and hammered, whereby the bracing fixture is It is fixed to vertical and horizontal members. As a result, the braces are fixed in the frame formed by the vertical members and the horizontal members by the bracing fixture. At this time, since the brace abutment portion and the brace are fixed by the nail, the brace fixing fitting and the brace are firmly fixed to each other without being displaced. The nail operates in the same manner even if a screw or the like is used instead. In addition, it is not necessary to process the bolt holes or the like in advance in the braces, so that the installation is not troublesome and the work efficiency is improved.

Further, since the interior angle between the first side and the second side of the hexagon and the interior angle between the first side and the sixth side are 135 ° or more and 150 ° or less. , When the portions along the second side and the sixth side are brought into contact with the vertical member and the horizontal member, respectively, the nail holes provided in this portion are
Since it is located away from the end face in the longitudinal direction of the vertical member or the horizontal member, cracking of the member due to driving nails or screws can be reduced. Further, since the second side and the sixth side are not parallel to the surface along the longitudinal direction of the member but have an angle, it is possible to prevent nail holes from being serially arranged along the grain, It is possible to reduce the number of cracks.

Further, since a portion where the bracing fixture is not abutted occurs at the central portion of the side surface of the member where the vertical member is joined to the horizontal member, a plate for fixing the vertical member and the horizontal member to this portion. Can be attached.

In the bracing bracket according to the second aspect of the present invention, the opposite sides are parallel to each other. Therefore, in addition to the above-mentioned function, when the bracing bracket is manufactured, a plurality of metal plates are used to form a plurality of plates. The rectangular metal plate can be cut without waste, and the manufacturing process can be made more efficient and the material cost can be reduced.

Since the brace fixing bracket according to claim 3 is symmetrical with respect to the two axes, it can be used anywhere regardless of the upper or lower part of the brace or the inclination direction of the brace, and it is versatile. Expanding.

[0020]

Embodiments of the bracing fixtures according to the inventions described in claims 1 to 3 will be described below in detail with reference to the drawings. FIG. 1 is a bracing fixture 1 which is an embodiment of the invention described in claim 1, claim 2 or claim 3.
FIG. 4 is a front view, a side view, and a plan view showing FIG. Also, FIG.
[Fig. 2] is a schematic perspective view showing a state in which a brace 2 is attached to a joint between a column 3 and a base 4 by the brace fixing metal fitting 1 shown in Fig. 1 above.

The bracing fixture 1 is made of a hexagonal plate made of a steel plate having a thickness of about 3 mm, and two opposing sides, that is, the first side 11 and the fourth side 14 are parallel to each other. , Have the same length (80 mm), and the distance between these sides is 135 mm. The second side 12, the third side 13, the fifth side 15 and the sixth side 16 which are adjacent to these sides have the same length, and the second side 12 and the fifth side 15 have the same length.
And the third side 13 and the sixth side 16 are parallel to each other. Further, the distance between the apex angle 22 formed by the second side 12 and the third side 13 and the apex angle 25 formed by the fifth side 15 and the sixth side 16 is 240 mm. ing.

The portion along the second side 12 and the portion along the sixth side 16 of such a plate-shaped member abuts on a vertical member such as a pillar or a stud or a horizontal member such as a base or a body difference. The frame contact portions 1a and 1b are fixed to each other, and nail holes 31 for fixing the bracing fixtures to the vertical member or the horizontal member are provided in these parts. On the other hand, the fourth side 1
4 and the third side 13 / fifth side 15 from the portion adjacent to the fourth side 14 to the midpoint 11a of the first side 11 is the bracing contact portion 1c. A plurality of nail holes 32 for fixing the bracing fixture and the braces are provided in a dispersed manner.

Further, the rectangular small hole 33 is formed on the imaginary lines 41 and 42 extending from the midpoint 11a of the first side 11 in the direction of an angle of 45 °.
Is provided. This small hole 33 is a positioning hole when the bracing fixture 1 is attached to a vertical member or a horizontal member, and the phantom lines 41 and 42 connect the frame abutting portions 1a and 1b and the bracing abutting portion 1c. It is the boundary. The nail holes 31 of the frame abutting portions 1a and 1b, the nail holes 32 and the positioning holes 33 of the brace abutting portion 1c are all on the first side 11.
Are provided symmetrically with respect to the vertical bisector 43, and the bracing fixture 1 can be attached to any part.

When the braces are fixed using such bracing fixtures, for example, the following procedure can be performed. First, both ends of the braces 2 are cut out according to the pillars 3, the base 4, etc. to be fixed, and the positioning holes 33 are aligned with the notched surfaces to fix the bracing fixture 1. To fix the brace fixing bracket 1 to the brace, use the brace contact portion 1c.
2B, a screw nail 51 as shown in FIG. At this time, it is desirable that the length of the screw nail 51 is shorter than the thickness of the member used as the braces.
By using a nail shorter than the thickness of the member in this way, cracking of the member can be reduced.

Next, as shown in FIG. 3, the braces 2 are built in a frame body formed by columns 3, 3 and beams 5 and a base 4, and the cutout surfaces at the ends of the braces 2 are made into columns. 3 and the base 4 and the corners of the pillar 4 and the beam 6 are brought into contact with each other, and the pillar 3 and the base 4 or the beam 5 are inserted from the nail holes 31 of the frame contact portions 1a and 1b.
A screw nail 51 is driven into and fixed. Although the screw nails 51 are used in this embodiment, other screws such as ordinary nails, screws, screws, and coach bolts can be used as long as they can be driven in or screwed into the braces and the frame contact portion. You can Further, in the above-mentioned bracing fixture, the bracing fixture 1 has a symmetrical shape and the arrangement of the nail holes 31 and 32 with respect to the vertical bisector 43 of the first side 11 shown in FIG. It can be used upside down or left and right, and can be used in various parts of the structure.

The braces 2 fixed in this way are firmly fixed by nails, and are not displaced by the axial force of the braces as in the case of using a bolt, and the horizontal force acting on the frame body. The deformation can be suppressed to be small. According to the result of the experiment conducted to confirm the effect of this embodiment, the area of the bracing fixture 1 of this embodiment is smaller than that of the conventional bolt shown in FIG. However, it has been confirmed that the wall magnification of the bearing wall using this becomes 2.0.

FIG. 4 is a diagram showing an example in which the bracing fixtures of the above-mentioned embodiment are used in the portions where braces are provided on both sides of the column. As shown in this figure, the interior angle between the first side 11 and the adjacent second side 12 and sixth side 16 is 135 °.
Since it is not less than 150 °, it will be the second when this bracing fixture 1 is mounted over the pillar 3 and the base 4.
And the sixth side have an angle with the edges 3a and 4a of the member, and a portion where the bracing fixture is not abutted can be made on the center side of the member at the joint between the pillar 3 and the base 4. Therefore, a plate 61 having a pointed portion as shown in FIG. 3, a mountain-shaped plate 62 as shown in FIG. 5, and a T-shaped plate 63 as shown in FIG. Can be tied up with.

Further, such a brace fixing member 1 is shown in FIG.
It is manufactured by cutting from a large steel plate without a gap as shown in. As described above, the waste of the steel plate hardly occurs, and the outer shape is simple, so that it can be efficiently manufactured at low cost.

[0029]

As described above, in the bracing member according to the first aspect of the present invention, the bracing contact portion and the bracing are fixed by the nails, and the axial force acting on the bracing is transmitted. .
Therefore, since the bracing fixture and the bracing are firmly fixed to each other without being displaced, the resistance of the bearing wall against the horizontal force can be effectively improved. Further, sufficient strength is exhibited without increasing the size of the brace fixing metal fitting, and it is possible to avoid the trouble in mounting other members such as the wall base material. Further, since it is not necessary to preliminarily make holes in the braces or to tighten bolts, workability is improved. Further, since the outer shape is hexagonal and the inner angle is appropriately set, it is possible to reduce cracks in the member used as the braces, the vertical member, or the horizontal member. Further, it is possible to attach a plate or the like for tightly connecting the column and the horizontal member without any trouble.

In the bracing fixture according to the second aspect of the present invention, since the opposite sides are parallel to each other and the lengths are equal, it is possible to efficiently manufacture without waste of material.

In the bracing fixture of claim 3, since the outer shape and the arrangement of the nail holes are symmetrical with respect to the vertical bisector of the first side, the bracing of the bracing upper part or the lower part, the bracing of the bracing Can be used anywhere, regardless of tilt direction,
Expands versatility.

[Brief description of drawings]

FIG. 1 is a front view, a side view, and a plan view showing an embodiment of a bracing fixture according to the invention described in claims 1 to 3.

FIG. 2 is a perspective view showing a usage state of the bracing fixture of FIG.

FIG. 3 is a view showing a brace fixed using the brace fixing metal fitting of FIG. 1.

FIG. 4 is a diagram showing an example in which the brace fixing fittings of FIG. 1 are used in the portions where brace is fixed on both sides of the column.

FIG. 5 is a diagram showing an example in which the brace fixing metal fittings of FIG. 1 are used in portions where brace is fixed on both sides of a column.

FIG. 6 is a view showing an example in which the brace fixing fittings of FIG. 1 are used in the portions where brace is fixed on both sides of the pillar.

[Fig. 7] When manufacturing the bracing fixtures shown in Fig. 1,
It is a figure which shows the state cut out from a large steel plate.

FIG. 8 is a schematic view showing a usage state of bracing fixtures.

FIG. 9 is a perspective view and a front view showing an example of a conventional bracing fixture.

FIG. 10 is a front view showing another example of a conventional bracing fixture.

FIG. 11 is a diagram showing a problem when the brace fixing metal fitting shown in FIG. 9 is used.

[Explanation of symbols]

 1 Bracing brackets 2 Bracings 3 Pillars (vertical materials) 4 Bases (horizontal materials) 5 Beams (horizontal materials) 6 Wall foundation board 11 First side 21 First apex angle 12 Second side 22 Second apex angle 13 Third side 23 Third apex angle 14 Fourth side 24 Fourth apex angle 15 Fifth side 25 Fifth apex angle 16 Sixth side 26 Sixth apex angle 31 , 32 Nail hole 33 Small hole for positioning 41, 42 Virtual line 43 Vertical bisector of the first side 51 Screw nail

Claims (3)

[Claims] 1. A bracing fixture for fixing a bracing in a wooden structure to a vertical member and / or a horizontal member, which is made of a substantially hexagonal metal plate, and the six sides of which are respectively arranged in order. When the first side, the second side, the third side, the fourth side, the fifth side, and the sixth side are defined, the interior angle between the first side and the second side, and the The interior angle between the first side and the sixth side is 135 ° or more and 150 ° or less, and the vertical angle is set at a position near the edge along the second side and a position near the edge along the sixth side. Having a plurality of nail holes for fixing the bracing fixture to a material or a horizontal member, and from the third side, the fourth side and the fifth side facing the first side, the hexagon Brace fixing metal fittings characterized by having a plurality of nail holes dispersed for fixing to brace to the central part of the metal plate. 2. The bracing fixture according to claim 1, wherein the substantially hexagonal metal plate has a first side, a fourth side, and a second side.
And a fifth side, and a third side and a sixth side are parallel to each other and have the same length. 3. The bracing fixture according to claim 2, wherein the outer shape of the metal plate and the arrangement of the nail holes are the first one.
Is symmetrical with respect to the vertical bisector of the side, and the shape of the outer periphery of the metal plate is such that the apex angle between the second side and the third side and between the fifth side and the sixth side. Brace fixing metal fittings characterized by being symmetric with respect to the line passing through the apex angle.