JP3290590B2 - Bracing equipment for wooden buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rectangular frame structure in a vertical plane formed by a base or a horizontal member and a column of a wooden building, and a rectangular frame in a horizontal plane formed by the base or the horizontal member. The present invention relates to a brace device for preventing deformation of a rectangular frame structure by being installed between inner corners at diagonal positions in the structure.

[0002]

2. Description of the Related Art Conventionally, a brace in a wooden building generally uses a wooden brace, and a cut is formed on a side surface of a pillar, a base, or a horizontal member so that an end of the brace can be fitted.
The ends of the brace members are fitted into the cuts and fixed with nails or the like.

[0003]

However, as described above, a notch is formed in the erection of the bracing material.
A great deal of time and effort is required, resulting in a problem of high cost.

[0004] In view of the above-mentioned conventional problems, the present invention allows a wooden bracing member to be easily erected using hardware.
Moreover, it is an object of the present invention to propose a brace device for a wooden building, which can connect a brace material with high rigidity to a corner.

[0005]

In order to achieve the above object, the present invention relates to a rectangular frame (5) in a wooden building, provided that reference numerals in the following embodiments are shown in parentheses for reference. A pair of mounting brackets (7) fixed to the two corners (5a) at the diagonal positions of and a support shaft (8) that is parallel to each mounting bracket (7) so as to be swingable. And a wooden brace member (10) whose both ends are joined to both connecting hardware (9), and each mounting hardware (7) is a pair of mounting plates at right angles to each other. (11, 12), and the corner between the two mounting plates (11, 12) is formed as an arc-shaped corner (14) centered on the support shaft (8), and is attached to each connecting hardware (9). Is the mounting hardware (7)
The contact portion (20) that contacts the inner surface of the arc-shaped corner portion (14) is provided.

In implementing the above-described brace device, the connecting hardware (9) is formed by bending a band plate into a substantially U-shape, and the U-turn portion constitutes the contact portion (20). A pair of clamping plates (21, 21) are formed at the free ends to which the ends of the brace members (10) are fitted and fixed, and the clamping plates (21) and the contact portions (2
A support shaft hole (19) through which the support shaft (8) penetrates can be provided between 0). The contact portion (20) can be formed by deep-drawing the U-turn portion of the band plate into a tapered bag shape in the swinging direction of the connecting hardware (9). In addition, a support step (22) for supporting the edge of the brace member (10) can be formed so as to protrude from the pair of holding plate portions (21), and the bolt is inserted with the end of the brace member (10) fitted. A bolt hole (23) for fastening and fixing at (24) may be provided, and the bolt hole (23) may have a short cylindrical peripheral wall portion (23a) protruding inside the holding plate portion formed by burring. it can.

Each mounting hardware (7) is formed by pressing a single metal plate, and a pair of mounting plate portions (11, 12) which are at right angles to each other, and both mounting plate portions (11, 12). 12) can be formed into a hollow shape having a pair of substantially right-angled triangular side plates (13) connecting both sides thereof, and as a mounting hole for the mounting plates (11, 12), a short cylindrical shape protruding outward. A burring bolt hole (15, 16) may be provided so as to have the peripheral wall portion (15a, 16a).

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a brace device for a wooden building according to the present invention will be described below with reference to FIGS.

In FIG. 3, 1 is a cloth foundation, 2 is a base provided thereon, 3 is a column erected on the base 2 at an appropriate interval, and 4 is an upper end or a column of the column 3 (see FIG. (Not shown) horizontally. The base 2, the pillars 3, and the horizontal members 4 form a rectangular frame 5. A brace device 6 is installed between two corners 5a, 5a at diagonal positions of the rectangular frame 5.

As shown in detail in FIGS. 1 and 2, the brace device 6 includes a pair of mounting hardware 7 fixed to the corner portion 5a.
It is composed of a connecting hardware 9 pivotally supported by each mounting hardware 7 by a supporting shaft 8 parallel to each other, and a wooden brace member 10 having both ends connected to both the connecting hardware 9.

As shown in detail in FIG.
One metal plate is formed by pressing into a hollow boat shape in which a side surface shape is a substantially right triangle and only a portion corresponding to the hypotenuse is opened. Thus, the mounting hardware 7 includes a long mounting plate portion 11 arranged vertically and a short mounting plate portion 12 horizontally arranged, and both mounting plate portions 11 and 1.
2 and a right and left side plate portion 13 of a substantially right triangle connecting the left and right sides, respectively. A corner portion between the mounting plate portions 11 and 12 is an arc-shaped corner portion 14 centered on the axis of the support shaft 8. It consists of. The corners between the two mounting plate portions 11 and 12 and both side plate portions 13 are also formed as convex curved surfaces.

The long mounting plate 11 is provided with three mounting bolt holes 15 at regular intervals in the longitudinal direction thereof, and the short mounting plate 1
2 is provided with one bolt hole 16 for mounting, and a plurality of nail holes 17 are provided appropriately. Each of the bolt holes 15, 16 has a short cylindrical peripheral wall portion 15a, 16a that is formed to project outward by burring. The right and left side plates 13 have the arc-shaped corner portions 14.
Shaft hole 18 for penetrating the shaft 8 so as to be located at the center of the shaft
Is provided. The nail holes 17 are used for temporarily fixing the mounting hardware 7 so that the mounting operation can be easily performed, or used for mounting when bolts cannot be used.

The connecting hardware 9 is, as shown in detail in FIG.
The band plate is formed by bending into a substantially U-shape, and a shaft hole 19 through which the shaft 8 penetrates is provided in an intermediate portion thereof, and the U-turn portion is a swing direction of the connection hardware 9 around the shaft 8. Into a tapered bag,
Further, a contact portion 20 which is formed by deep drawing so as to be tapered also in the axial direction of the support shaft 8 and is in contact with the inner surface of the arc-shaped corner portion 14 of the mounting hardware 7 is provided. Further, a pair of holding plate portions 21 are formed at both free ends of the connection metal member 9 bent into a substantially U-shape in the axial direction of the support shaft 8, and one end is connected to one of the connection metal members 9. The other end of the brace 10 is connected to the other connecting hardware 9 by utilizing the swing of the one connecting hardware 9 around the support shaft 8.
Is formed so as to be fitted between the pair of holding plate portions 21 and 21 for connection.

A pair of support plate portions 21 and 21 are formed with a support step 22 for supporting an edge of the brace member 10 fitted between the support plate portions 21 and 21. Are provided with a plurality of bolt holes 23 which are fastened and fixed with bolts 24 in a state in which. The support step 22 is
It has a triangular side cross section including a flat stepped surface 22a with which the edge of the brace 10 abuts and an inclined surface 22b whose projection amount gradually decreases from the tip end toward the U-turn portion, and has a substantially triangular shape in a front view. It is formed so that the load from the brace member 10 can be smoothly transmitted to the vicinity of the shaft hole 19 and the contact portion 20. Further, the bolt hole 23 has a short cylindrical peripheral wall portion 23a formed so as to protrude inside the holding plate portion 21 by burring.

The work of erection of the brace device 6 having the above-described structure will be described. The long mounting plate portion 11 abuts on the side surface of the pillar 3 at the two corners 5a at the diagonal positions of the rectangular frame 5, and the base 2 When the mounting hardware 7 is arranged such that the short mounting plate portion 12 abuts on the upper surface of the horizontal mounting member 4 or all of the bolt holes 15 of the long mounting plate portion 11 or one or two selected bolt holes. Through bolt holes 25 and 26 are drilled and placed in the column 3 and the base 2 or the horizontal member 4 so as to match with the bolt holes 16 of the short mounting plate portion 15. The diameter of the through-bolt holes 25, 26 is such that the cylindrical peripheral wall portions 15a, 16a of the bolt holes 15, 16 can be press-fitted into the hole ends. If it is difficult to press the cylindrical peripheral wall portion 15a of the unused bolt hole 15 into the side surface of the pillar 3 and make it bite, it is desirable to form a shallow hole at that position.

Thereafter, the mounting hardware 7 is arranged at two diagonal corners 5a of the rectangular frame 5 so that the long mounting plate 11 is on the side of the pillar 3 and the short mounting plate 12 is on the base 2. And the cylindrical peripheral wall portions 15a and 15b of the bolt holes 15 and 16 are press-fitted into the end portions of the through bolt holes 25 and 26, respectively. The mounting bolts 28 and 29 are inserted into the through holes 15 and 16 and the through bolt holes 25 and 26, and the nuts 28a and 29a are screwed and fastened to fix the mounting hardware 7 to both the column 3 and the base 2 or the horizontal member 4. .

The side plate 1 of the mounting hardware 7 thus fixed.
The contact portion 20 of the connecting hardware 9 is inserted between the third and third fittings 13 so that the shaft hole 18 of the side plate portion 13 and the supporting hole 19 of the connecting hardware 9 are aligned with each other. The connecting shaft 9 is attached to the mounting member 7 by inserting the supporting shaft 8 composed of a bolt, screwing a nut 8 a into a threaded end of the supporting shaft 8 and fastening the nut 8 a. In the mounting state of the connecting hardware 9, the contact portion 20 of the connecting hardware 9 is in contact with the inner surface of the arc-shaped corner portion 14 of the mounting hardware 7. Further, the length of the arc-shaped corner portion 14 is set so that the connecting hardware 9 can swing by a predetermined angle in a state where the contact portion 20 is in contact, and the predetermined angle is as shown by a solid line in FIG. When the bracing material 10 is erected between the normal pillars 3 and 3 and when the bracing material 10 is erected between the pillar 3 and the stud 3a as shown by a virtual line, it is shown by a solid line and a virtual line in FIG. Thus, the contact state of the contact portion 20 with the arc-shaped corner portion 14 is set to be maintained.

Next, one end of a wooden brace member 10 having an appropriate length is fitted between the holding plate portions 21 and 21 of one of the connecting hardware 9 and the tip thereof is brought into contact with the supporting step portion 22 to thereby provide a bolt hole. 2
3 and the bracing member 10 with bolts 24 passing through
To one end. In addition, a bolt hole 30 corresponding to the bolt hole 23 is drilled at one end of the brace material 10, and the hole diameter is such that the cylindrical peripheral wall portion 23a can be press-fitted to the hole end. In this manner, the ends of the brace members 10 are held by the holding plate portions 21 and
The bracing member 10 can be firmly connected to the connecting hardware 9 only by fastening and fixing with the bolts 24 in a state where the bracing member is inserted between the two, and the cylindrical peripheral wall portion 23a has a hole end of the bolt hole 30 formed in the bracing member 10. The bracing member 10 can be firmly connected and fixed by press-fitting engagement with the portion, and a high connection strength can be obtained.

Next, the brace 10 is swung around the support shaft 8 of the connection fitting 9 to which one end of the brace 10 has been previously joined, and the other end of the brace 10 is aligned with the other connection fitting 9. A scoring line is formed at a position corresponding to the supporting step portion 22, the brace material 10 is cut at the scoring line, and the bolt holes 23 are cut.
Is drilled. Then, the other end of the brace 10 cut by using the swing of the connecting metal 9 to which one end of the brace 10 is connected around the support shaft 8 is fitted between the holding plate portions 21 and 21 of the connecting metal 9. Then, the connecting metal 9 and the other end of the bracing member 10 are connected by a bolt 24 passing through the bolt hole 23. In this connection state, the other end of the brace 10 is securely in contact with the supporting step 22 of the connection hardware 9.

As described above, a wooden brace member 10 effective for compressive force can be erected between the two corners 5a, 5a at the diagonal positions of the rectangular frame 5. The brace member 10 can be erected by a simple operation without performing complicated notching or the like on the horizontal member 4. The metal fitting 7 also has the effect of reinforcing the corner 5a of the rectangular frame 5. In FIG. 3, the brace 1
The mounting hardware 7 is also attached alone to the inset corner 5a where no 0 is erected to reinforce the inset corner 5a.

Further, since the supporting portion of the connecting hardware 9 by the support shaft 8 is accommodated in the mounting hardware 7 and the support shaft 8 is supported at both ends by the side plate portions 13 on both sides, the bracing load is connected. It can be reliably supported by the mounting hardware 7 via the hardware 9 and the support shaft 8.

Further, since both ends of the brace 10 are in contact with the supporting steps 22 of the connecting hardware 9, respectively, the brace 1
The load from 0 can be reliably transmitted to the mounting hardware 7 via the support shaft 8 of the connecting hardware 9 via the supporting step 22, and the abutment 20 is formed on the inner surface of the arc-shaped corner 14 of the mounting hardware 7. Can be transmitted to the mounting hardware 7 also through the contact portion 20. Furthermore, at the same time, each connection hardware 9
Are fixed to the mounting hardware 7 at two points of the support shaft 8 and the abutting portion 20, respectively, and become a two-point support state, so that the ends of the brace members 10 can be brought into a state close to being rigidly connected, and connected when a load is applied. Bending and twisting of the hardware 9 and the brace material 10 can be suppressed, and the function of the brace is sufficiently exhibited.

The connecting metal member 9 is formed by bending a band plate into a substantially U-shape and forming a pair of holding plate portions 21 and 21 at both free ends thereof.
, So that the connecting hardware 9 can be manufactured at a low cost with a simple structure.
Can be manufactured, and the supporting step 22 is formed to protrude, so that the supporting step 22 functions as a reinforcing rib, the strength of the connecting hardware 9 is improved, and the connecting hardware 9 is required in a lightweight and inexpensive configuration. Strength is ensured.

In the above embodiment, a pair of holding plate portions 21 and 2 are used as connecting hardware 9 for connecting both ends of the brace member 10.
Although the same configuration in which the ends of the brace members 10 are fitted between them and fastened and fixed with bolts 24 is used, one connecting hardware 9 can be connected by inserting the ends of the brace members 10. A box-shaped connecting portion may be used.

In the above embodiment, the base 2 and the pillar 3
Although the example in which the brace device 6 is applied to the vertical rectangular frame 5 composed of the horizontal member 4 and the horizontal member 4 is shown, the brace device 6 is applied to a horizontal rectangular frame surrounded by the horizontal member 4 or the base 2. You can also. Further, in the above-described embodiment, the example in which the connecting hardware 9 swings in the plane surrounded by the rectangular frame 5 has been described. However, the connecting hardware 9 may be configured to be swingable in the vertical direction with respect to the plane surrounded by the rectangular framework 5. .

[0026]

The brace device for a wooden building according to the present invention can be embodied as described above, and a pair of two corners at diagonal positions of a rectangular frame portion of a wooden building are provided. The mounting brackets are fixed to each other, the connecting hardware is pivotally supported on each mounting bracket by a support shaft, and both ends of the wooden brace are connected to both the connecting hardware, so that the brace can be erected, and the wooden brace can be installed. The material can be erected with a simple operation. In addition, since the abutting portion provided on the connecting hardware abuts on the inner surface of the arc-shaped corner between the pair of mounting plates at a right angle to each other, the brace member can be inclined at an arbitrary inclination angle. Although it can be erected in
When a load is applied, the connecting hardware is fixed to the mounting hardware at two points of the support shaft and the abutting portion, and becomes a two-point support state, so that the bracing material can be joined to the mounting hardware with high rigidity, and the bending of the connecting hardware and the bracing material can be performed. The torsion can be suppressed, and the function of bracing can be sufficiently exhibited.

According to the second aspect of the present invention, the connecting hardware is formed by bending a band plate into a substantially U-shape to form a contact portion at the U-turn portion, and to form a contact portion at both free ends. Since a pair of holding plate portions for fitting and fixing the ends of the brace members are formed, the connecting hardware can be manufactured with a simple configuration at low cost.

According to the third aspect of the present invention, the contact portion of the connecting hardware is formed by deep drawing the U-turn portion of the band plate into a tapered bag shape in the swinging direction of the connecting hardware. Therefore, the contact portion having high strength and rigidity can be obtained by a thin plate material, and the swing range of the connecting hardware can be made sufficiently large even if the length of the arc-shaped corner portion is short.

Further, according to the configuration of the fourth aspect, since the supporting step portion for supporting the edge of the brace member is formed to project from the pair of holding plate portions, the brace member is provided between the pair of holding plate portions. By fitting the end of the brace and applying the edge of the brace to the support step, the load from the brace can be reliably transmitted to the shaft support of the connecting hardware through the support step, and The strength of the connecting hardware is also improved by the formation, and the strength required for the connecting hardware can be secured with a lightweight and inexpensive configuration.

According to the structure of the fifth aspect, the bracing member can be firmly connected to the connecting hardware only by fastening and fixing with the bolt in a state where the end of the bracing member is fitted into the holding plate portion, In addition, the short cylindrical peripheral wall formed by burring is press-fitted into the opening edge of the bolt hole formed in the brace, so that the brace can be firmly connected and fixed,
High bonding strength is obtained.

Further, according to the structure of the sixth aspect, since each mounting hardware is formed by pressing one metal plate, it is manufactured as compared with the case where the metal plate is welded. Man-hours can be manufactured at low cost, and the sides of a pair of mounting plates that are at right angles to each other are connected by a pair of substantially right-angled triangular side plates to form a hollow shape with a substantially right-angled side. The rigidity of the arc-shaped corners of the mounting hardware can be increased, the load supporting performance can be improved, and the support shaft can be supported at both ends, and the bracing load can be securely supported by the mounting hardware via the support shaft and the abutting portion. can do.

Further, according to the structure of claim 7, since the mounting plate portion is provided with a mounting bolt hole having a short cylindrical peripheral wall portion projecting outward, the cylindrical peripheral wall portion is formed of a column or a base. The fittings can be firmly fixed by press-fitting into the opening edges of the bolt holes formed in the horizontal member, and a high fixing strength can be obtained.

[Brief description of the drawings]

FIG. 1 is an enlarged vertical sectional front view of a main part of an embodiment of a brace device for a wooden building of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an overall schematic front view of the same embodiment.

4A and 4B show the mounting hardware of the embodiment, wherein FIG. 4A is a front view in vertical section, FIG. 4B is a right side view of FIG. 4A, and FIG.

5A and 5B show a connecting hardware of the embodiment, wherein FIG. 5A is a front view and FIG. 5B is a side view.

[Explanation of symbols]

 Reference Signs List 5 rectangular frame 5a corner entry 6 bracing device 7 mounting hardware 8 support shaft 9 connecting hardware 10 bracing material 11 mounting plate 12 mounting plate 13 side plate 14 arc-shaped corner 19 support shaft hole 20 abutment 21 clamping plate 22 Support Step 23 Bolt Hole 23a Cylindrical Peripheral Wall 24 Bolt

Claims (7)

(57) [Claims] A pair of mounting hardware fixed to two corners at diagonal positions of a rectangular frame portion of a wooden building, and pivotally supported by respective mounting shafts in parallel with each mounting hardware. And a wooden brace member having both ends joined to the two connecting hardware. Each mounting hardware includes a pair of mounting plate portions at right angles to each other, and a corner between the two mounting plate portions. Is a brace device for a wooden building, which is formed in an arc shape centered on a support shaft, and in which each connecting hardware is provided with a contact portion which is in contact with an inner surface of an arc-shaped corner portion of a mounting hardware. 2. The connecting hardware is formed by bending a band plate into a substantially U-shape, and its U-turn portion forms an abutting portion, and both free ends fit the ends of the bracing material. 2. The brace device for a wooden building according to claim 1, wherein a pair of holding plate portions to be fixed by being formed are provided, and a support hole through which a support shaft passes is provided between the holding plate portion and the contact portion. 3. 3. The wooden building according to claim 2, wherein the contact portion of the connecting hardware is formed by deep-drawing a U-turn portion of the band plate into a tapered bag shape in the swinging direction of the connecting hardware. Brace device. 4. A brace for a wooden building according to claim 2, wherein a pair of holding plates, into which the ends of the brace are fitted, are formed with projecting support steps for supporting the edges of the brace. apparatus. 5. A holding plate portion is provided with a bolt hole for fastening and fixing with a bolt in a state where the end of the brace member is fitted, and the bolt hole is formed inside the holding plate portion formed by burring. The bracing device for a wooden building according to any one of claims 2 to 4, comprising a short cylindrical peripheral wall portion protruding. 6. Each mounting hardware is formed by pressing a single metal plate, and comprises a pair of mounting plate portions which are at right angles to each other, and a pair of substantially right triangles which respectively connect both sides of these mounting plate portions. The bracing device for a wooden building according to any one of claims 1 to 5, wherein the device is formed in a hollow shape having a side plate portion. 7. The wooden structure according to claim 1, wherein a burring bolt hole is provided as a mounting hole of the mounting plate portion so as to have a short cylindrical peripheral wall portion protruding outward. Brace equipment for buildings.