JP2001336216A - Joining hardware for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joining hardware capable of reducing work of a ligneous member and the other works, with superior workability and capable of reducing a cost by using the ligneous member having a reasonable diameter in a small- scale building or a small load part when installing the second ligneous member such as a beam on the first ligneous member such as a column, a sill and a beam in a wooden building. SOLUTION: This joining hardware is composed of a backboard 11 fixed to the first ligneous member such as the column, the sill and the beam, a pair of side plates 12 overhanging in the right-angled direction to the backboard on both sides of the backboard, and a receiving plate 16 arranged on the lower end of the backboard 11 and the pair of side plates 12. A jaw hooking groove 14 having an inclined pin guide part 13 is formed in one side plate of the pair of side plates, and a drift pin hole 15 is formed in the other side plate. Thus, since the second ligneous member is supported by a single drift pin, boring work of the drift pin to the ligneous member is reduced to improve the workability. Since plural drift pins are not required, the joining hardware can be miniaturized, and a cross section of the ligneous member can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a second wooden member such as a small beam on a first wooden member such as a pillar, a base or a beam in a wooden building. The present invention relates to a metal joint used for joining and fixing a portion and a first wood member.

[0002]

2. Description of the Related Art As a method of attaching a second wooden member such as a small beam to a first wooden member such as a pillar, a base, a beam, etc.
The mortise is formed so as to protrude from the end of the wooden member, and the tenon is fitted into a mortise drilled on the first wooden member side. Recently, mounting hardware has been used due to the inconvenience of forming mortises and tenon holes in wooden members and the difficulty of installation work on site.

[0003] As such a mounting hardware, there is a bonding hardware 1 'as shown in FIG. The metal joint 1 'is formed by bending a metal plate, and a back plate 11' fixed to the first wood member 2 'and a pair of side plates 12' protruding on both sides of the back plate at right angles to the back plate. And each side plate 1
In 2 ', a jaw groove 14' having a pin guide portion 13 'inclined forward and a drift pin hole 15' are formed at positions facing each other, and a bolt hole 17 'is formed in the back plate 11'. .

When using such a metal joint 1 ',
First, the back plate 11 'of the metal joint 1' is brought into contact with the lateral side surface of the first wooden member 2 'and is fixed by bolts 4'. on the other hand,
A drift pin 5 'is driven into a drift pin hole 32' formed in the second wood member 3 ', and a fitting groove 31' formed in the end face of the second wood member 3 'is inserted into the back plate 1 of the metal joint 1'.
While fitting to a pair of side plates 12 'projecting from 1',
The drift pin 5 'driven into the second wood member 3' is hooked on the jaw groove 14 'of the metal fitting 1', and then another drift pin 6 'is driven through the drift pin hole 15' of the metal fitting 1 '. It is fixed. At this time, the second
The wooden member 3 'and the metal joint 1' are fixed by two drift pins 5 'and 6', and the drift pin 5 'located above is fitted in the chin groove so that the second wooden member 3' is formed.
The drift pin 6 'located below is adapted to the load applied to the second wood member 3' and the upward load caused by wind blow-up, deformation during an earthquake, and the like.

[Problems to be solved by the invention]

However, in the above method, at least two drift pin holes 32 'are formed in the second wood member 3' and two drift pins 5 'and 6' are driven. There is an increase in the number of operations, such as drilling, so that the drilling position of the two wood members 3 'is aligned with the positions of the jaw groove 14' and the drift pin hole 15 'of the metal joint, and higher drilling processing accuracy is required. Will be
Workability is poor and it takes time and effort. Also, when a load is applied to the second wood member, a split will eventually occur in the drift pin hole 32 'drilled in the second wood member, and this split is caused by the drift pin hole and the wood member. It depends on the distance to the edge and the distance between the drift pin holes, and the smaller these distances, the more likely the split will occur. For this reason, since it is necessary to take a predetermined distance, the beam back of the wooden member or the side plate 12 ′ of the joint hardware is inevitably large, and even in a small-scale building or a small load where the load on the wooden member is small. , The use of large-diameter wood material,
There is a drawback that the joint hardware is unreasonable in terms of price because of its large size.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and reduces the work of drilling a drift pin hole, driving a drift pin, and the like. An object of the present invention is to provide a metal joint that can reduce costs by using a wood member having a reasonable diameter.

[0007]

According to the present invention, in order to solve the above-mentioned problems, a metal joint for a wooden building according to claim 1 is provided on a lateral side surface of a first wooden member such as a pillar, a base or a beam. A back plate 11 to be fixed, a pair of side plates 12 projecting at right angles to the back plate on both sides of the back plate, and a receiving plate 16 disposed at a lower end of the back plate 11 and the pair of side plates 12. A jaw hook groove 14 having an inclined pin guide 13 is formed on one side plate of the pair of side plates, a drift pin hole 15 is formed on the other side plate, and a plurality of bolts are formed on the back plate 11. A hole 17 is formed. This allows the second
The load applied to the wooden member is borne by the single drift pin 6 and the receiving plate 16, and the first
It acts to transmit to the wooden member.

In addition, the metal joint of the wooden building according to the second aspect of the present invention is formed by forming a locking portion 18 on the back plate 11 of the metal joint. Thus, when the load applied to the second wood member is transmitted to the first wood member via the metal joint 1, the locking portion 18 of the joint metal 1 bears the load applied to the second wood member. The first wood member acts so as not to cause splitting at the bolt hole portion. Further, the load (shear force) applied to the bolt 4 is reduced, and the proof strength of the joint is improved.

Note that reference numerals in parentheses are for convenience showing corresponding elements in the drawings, and therefore, the present invention is not limited to the description on the drawings. The same applies to the column of “Claims”.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment of a metal joint for a wooden building according to the present invention. FIG. 2 is a perspective view showing a second embodiment of the metal joint of the wooden building of the present invention. FIG. 3 is an exploded perspective view of a joint portion between wooden members showing an embodiment constructed using the first metal joint of the present invention. FIG. 4 is a longitudinal sectional view of the joint shown in FIG. FIG. 5 is an exploded perspective view of a joint portion between wooden members showing a second embodiment constructed using the first metal joint of the present invention. FIG. 6 is a longitudinal sectional view of the joining portion shown in FIG. FIG. 7 is an exploded perspective view of a joint portion between wooden members showing a third embodiment constructed using the first metal joint of the present invention. FIG. 8 is a longitudinal sectional view of the joint shown in FIG. FIG. 9 is an exploded perspective view of a joint portion between wooden members showing an embodiment constructed using the second metal joint of the present invention. FIG. 10 is a longitudinal sectional view of the joint shown in FIG.

FIGS. 1 and 2 show an embodiment of a metal joint according to the present invention. The joint hardware of the first embodiment shown in FIG. 1 includes a back plate 11 abutting on the lateral side surface of the first wooden member 2,
, A pair of side plates 12 projecting in a direction perpendicular to the front (from left to right in FIG. 1), a back plate 11 and a side plate 1.
A pin guide portion formed at the lower end of the back plate 11 and a receiving plate 16 provided over a pair of side plates 12, and extending obliquely downward from the front upper end toward the rear at one of the side plates 12. A jaw hook groove 14 having a hole 13 is formed, and a drift pin hole 15 is formed in a position corresponding to the jaw hook groove 14 on the other side plate. Further, four bolt holes 17 are formed in the back plate 11 at appropriate positions. still,
The number of the bolt holes 17 is not limited to four, but may be determined as appropriate depending on the size of the wooden member, the joining type, the required joining strength, and the like.

The joint metal according to the second embodiment shown in FIG. 2 has a U-shaped engaging portion 18 formed in the lower part of the back plate 11 so as to project in the opposite direction to the side plate 12. The shape of the locking portion 18 is not limited to the U-shape, but may be a ring shape such as a circular shape or an elliptical shape. The arrangement position and number thereof are not limited to the above. For example, one joint is provided at the upper part or the upper part and the lower part, and the necessary bonding strength and the side surface of the first wooden member 2 are attached. What is necessary is just to determine suitably according to the mounting position at the time.

Next, a bonding state using the metal fitting 1 according to the first embodiment of the present invention will be described with reference to FIGS. FIG.
In the example shown in FIG. 4 to FIG. 4, a wooden member is assembled in a T-shaped frame. First, the metal joint 1 is disposed on the lateral side surface of the first wooden member 2 so as to correspond thereto, and the bolt hole 17 of the metal joint 1 is provided. Then, a bolt 4 is provided through the wooden member 2 to fix the metal joint 1 to the wooden member 2. That is, the joint hardware 1 is arranged by aligning the bolt holes 17 formed on the back plate 11 of the joint hardware with the bolt holes 21 drilled on the side surface of the first wooden member 2, and the bolt 4 is inserted from the joint hardware side. Then, the nut 5 is screwed into the wooden member 2 from the other side. In this case, the bolt 4 penetrates the first wood member 2, and the length thereof is selected and used according to the thickness of the first wood member 2.

On the other hand, a second wood member 3 which is a wood member to be joined to the first wood member 2 has a cut-out portion which forms a space corresponding to the head of the bolt 4 at a joint or a connection. 31, a fitting groove 32 formed on the side plate of the metal joint formed by cutting with a saw blade in the vertical direction, and a position corresponding to the jaw groove 14 or the drift pin hole 15 formed on the side plate 12 of the metal joint 1. And a drift pin hole 33 penetrating in the lateral direction. The second wood member 3 whose connection has been processed in this way is fitted into the joint hardware 1 fixed to the lateral side surface of the first wood member 2. At this time, the second wood member 3 is formed on the second wood member 3. Drift pin hole 33
After the drift pin 6 is inserted in advance, the second wood member 3 is installed so that the drift pin 6 is located above the inclined pin guide 13 of the metal joint, and then the second wood member 3 is placed.
Is moved along the inclination of the pin guide portion 13 by hitting from above, and fitted into the chin hook groove 14. After the second wood member 3 is fitted to the metal joint 1, the drift pin 6 is further driven into the drift pin hole 15 formed in the other side plate 12 of the metal joint, and the second wood member 3 is removed. Penetrating through,
The second wood member 3 is fixed to the metal joint 1. in this case,
The drift pin 6 penetrates the second wood member 3, and the length thereof is selected and used according to the thickness of the second wood member 3.

Next, as shown in FIG. 5 and FIG.
A case will be described in which a second wooden member such as a plurality of beams and a base is attached to the wooden member in such a manner as to be orthogonal to each other.
That is, as described above, the joining hardware 1 is first provided on one side surface of the first wood member 2 such as a pillar, and the bolt 4 is inserted into the bolt hole 17 of the joining hardware 1 through the wood member 2.
To fix the metal joint 1 to the wooden member 2. At this time, the bolt 4 penetrates through the top bolt and the third bolt hole from the top among the four bolt holes 17 formed in the metal joint 1. Next, another joining hardware 1 is similarly fixed to the other side surface (side surface orthogonal to the side surface) of the first wooden member 2 with the bolt 4. At this time, the bolts 4 penetrate the second and bottom bolt holes from among the four bolt holes 17 formed in the joint hardware 1.

Next, the second wood member 3 which is the wood member to be joined to the first wood member 2 is connected to the metal joint 1 fixed to the lateral side of the first wood member 2 by the above-described method. It is fitted and fixed by the drift pin 6. Similarly, another second wood member 3 is attached to another joint hardware 1.

Next, as shown in FIG. 7 and FIG.
A case will be described in which a second wooden member such as a plurality of beams having different beam backs and a base is opposed to the wooden member. That is, as described above, first, the joint hardware 1 is provided on one side surface of the first wooden member 2 such as a pillar, and the bolt 4 is inserted into the bolt hole 17 of the joint metal 1 through the wooden member 2. Then, the metal joint 1 is fixed to the wooden member 2.
At this time, the bolt 4 penetrates the uppermost and lowermost bolt holes of the four bolt holes 17 formed in the metal joint 1.
Next, another joining hardware 1 is similarly fixed to the opposite side surface of the first wooden member 2 (the surface opposite to the side surface) with the bolt 4. At this time, since the beam back of the second wooden member is different, the joint hardware 1 is shifted by a dimension corresponding to the difference in beam back, and the bolt 4 is formed of the four bolt holes 17 formed in the joint hardware 1. It penetrates through the top and bottom bolt holes.
It is desirable that the fixing by the bolts 4 is performed at the uppermost and lowermost bolt holes 17 of the metal joint 1 from the viewpoint of the joint strength.

Next, the second wood member 3 which is the wood member to be joined to the first wood member 2 is attached to the metal joint 1 fixed to the lateral side of the first wood member 2 by the above-described method. It is fitted and fixed by the drift pin 6. Similarly, another second wood member 3 is attached to another joint hardware 1.

Thus, the first wooden member 2 and the second
When the load applied to the second wooden member 3 is transmitted to the first wooden member 2 through the joint 1 by joining the wooden member 3 to the first wooden member 2 of the present invention, the second wooden member The load applied to 3 is first borne by the drift pin 6, and eventually the split pin 33 is broken at the portion of the drift pin hole 33 formed in the second wooden member, and is broken. At this time, since a plurality of drift pin holes are not formed,
No splitting occurs between the draft pin holes. Also,
Since there is only one drift pin hole 33 drilled in the second wooden member 3, this drilling operation can be saved and the working efficiency is good. In addition, since the lower surface of the second wooden member 3 is placed on the receiving plate 16 as shown in FIGS. 4, 6, and 8, the load applied to the second wooden member 3 by the receiving plate 16 of the metal joint 1 is also reduced. Since it is burdened, splitting at the drift pin hole 33 portion of the second wood member 3 is more unlikely to occur, the joint strength is increased, the toughness is given to the joint, and the earthquake resistance is improved. Further, the gap 7 formed between the cut-out portion 31 formed in the second wooden member 3 and the back plate 11 of the joining hardware to avoid the bolt head is closed. Of the wooden member 3 can be prevented, and the fire resistance is improved. Further, by forming a plurality of bolt holes 17 in the back plate 11, when joining a plurality of second wood members 3 to the first wood member 2 at the same location, the joining hardware 1 is connected to the first wood member 3. When fixing to the wooden member 2, the bolts 4 for fixing the respective metal joints 1 can penetrate without being restrained by properly selecting the bolt holes 17 of the back plate 11.

Next, a joining state using the joining hardware 1 according to the second embodiment of the present invention will be described with reference to FIGS. The example shown in FIG. 9 and FIG. 10 is one in which a wooden member is assembled in a T-shape. Hardware 1
The bolt 4 is inserted through the bolt hole 17 through the wood member 2 to fix the metal joint 1 to the wood member 2. That is, the wood member 2 is formed with a cut portion 22 having substantially the same size as the locking portion for fitting the locking portion 18 of the metal fitting 1. After fitting the stop portion 18 to temporarily fix the joint hardware 1 to the lateral side surface of the wooden member 2, the bolt 4 is inserted into the bolt hole 17 formed in the back plate 11 of the joint hardware from the joint hardware side, and from the other side. The nut 5 is screwed to fix the metal joint 1 to the wooden member 2. In this case, the bolt 4 penetrates the first wooden member 2 and its length is the first
Of the wooden member 2 is selected and used.

On the other hand, a second wood member 3 which is a wood member to be joined to the first wood member 2 has a cut-out portion which forms a space corresponding to the head of the bolt 4 at a joint or a connection. 31, a penetration groove 32 to be fitted to a side plate of the metal joint formed by cutting in a longitudinal direction with a saw blade, and a position corresponding to the jaw hook groove 14 or the drift pin hole 15 formed in the side plate 12 of the metal joint 1. And a drift pin hole 33 penetrating in the lateral direction. The second wood member 3 whose connection is processed in this way is fitted into the joint 1 fixed to the lateral side surface of the first wood member 2, and at this time, the drift pin of the second wood member 3 is used. After inserting the drift pin 6 into the hole 33 in advance and installing the second wood member 3 so that the drift pin 6 is located above the inclined pin guide 13 of the metal joint, the second wood member 3 is removed. By hitting from the upper part, the pin guide 13 is moved along the inclination of the pin guide 13 and fitted into the chin hook groove 14. After the second wood member 3 is fitted to the metal joint 1, the drift pin 6 is further driven into the drift pin 15 formed on the other side plate 12 of the metal joint, via the second wood member 3. To fix the second wooden member 3 to the metal joint 1. In this case, the drift pin 6 penetrates through the second wood member 3 and has a length
A material suitable for the thickness of the wooden member 3 is selected and used.

Thus, the first wooden member 2 and the second
When the load applied to the second wooden member 3 is transmitted to the first wooden member 2 through the joint 1 by joining the wooden member 3 to the first wooden member 2 of the present invention, the second wooden member The load applied to 3 is first borne by one drift pin 6, and eventually the split pin is broken at the portion of the drift pin hole 33 pierced in the second wooden member, and is broken. At this time, since a plurality of drift pin holes are not formed, splitting between the draft pin holes does not occur. Also, since there is only one drift pin hole 33 drilled in the second wood member 3, this drilling operation can be saved and the working efficiency is good. Further, since the second load is also borne by the receiving plate 16 of the joint hardware 1, the second wooden member 3
Is more unlikely to occur at the drift pin hole 33, the joining strength is increased, the toughness is given to the joint, and the earthquake resistance is improved. Further, a cut-out portion 31 formed in the second wooden member 3 to avoid a bolt head
The gap 7 formed between the metal member 3 and the back plate 11 of the metal joint is closed.
It can be prevented from sneaking into the connection part and has excellent fire resistance. The load applied to the second wooden member 3 is the joint metal 1
Is transmitted to the first woody member 2 through the joint. At this time, the bolt 4 and the engaging portion 18 of the joint hardware bear this load. Since it is large, splitting at the bolt hole 21 portion drilled in the first wood member 2 and breakage by the bolt are unlikely to occur, and the joining strength increases.

[0024]

As described above, according to the present invention, a back plate for fixing a metal joint to a first wooden member such as a pillar, a base, a beam, or the like, and a right angle to the back plate on both sides of the back plate. A pair of side plates projecting in the direction, and a backing plate and a receiving plate disposed at the lower end of the pair of side plates, and a jaw hook groove having a pin guide portion inclined on one side plate of the pair of side plates is formed. And a drift pin hole is formed in the other plate, so that in the joint structure in which the second wood member is mounted on the first wood member using the joint hardware, a load is applied to the second wood member. Is applied, the load is transmitted to the first wooden member through the joint hardware.
Is transmitted from the wooden member to the metal joint via the drift pin, and thus a problem occurs at the drift pin hole portion formed in the second wooden member. The splitting depends on the distance between the drift pin hole and the edge of the wooden member, and when there are a plurality of drift pin holes, the distance between the drift pin holes. Although it is easy to occur, in the metal joint of the present invention, since there is only one drift pin hole, the distance between the drift pin hole and the edge of the wooden member is appropriately determined regardless of the distance between the drift pin holes. The required joint strength can be obtained by selection. Further, since there is no need to keep a predetermined distance between the drift pin holes, the side plate of the metal joint can be made compact, and the metal joint can be reduced in weight. Also, the cross section of the wooden member can be reduced. Further, the work of drilling holes for penetrating the drift pin into the wooden member can be saved, and workability is improved.

[0025] Further, a receiving plate extending between the back plate and the pair of side plates is disposed at the lower end of the joint metal so as to receive the lower surface of the second wooden member. As a result, splitting is less likely to occur at the drift pin hole portion, the joint strength can be further improved, and the toughness is imparted to the joint, thereby improving the earthquake resistance. Also, the joint between the first wood member and the second wood member is concealed by the receiving plate, and the gap is closed, so that in the event of a fire, the flame wraps around the connection portion of the second wood member. Can be prevented, and the fire resistance performance is improved.

Further, by forming a plurality of bolt holes 17 in the back plate 11, when joining a plurality of second wood members 3 to the first wood member 2 at the same location, the joining hardware 1 can be used. When fixing to the first wood member 2, the bolts 4 for fixing the respective joint hardware 1 can penetrate without being restrained to each other by appropriately selecting the bolt holes 17 of the back plate 11. Therefore, when attaching a plurality of second wood members such as beams and bases having different beam structures to the first wood member such as a pillar,
Since the joints can be joined by using joints of the same shape, there is no need to increase the types of joints, so there is no need to manage the construction hardware.

[0027] Further, since the locking portion is formed on the back plate of the metal joint, when the load applied to the second wooden member is transmitted to the first wooden member via the metal joint, the locking portion is loaded. Therefore, the load borne by the bolt is reduced, splitting is less likely to occur at the bolt hole portion, and the proof stress of the joint increases. Therefore, when attaching the joining hardware to the first wood member,
Without increasing the number of bolts or the number of wooden members, a joining strength having a predetermined proof strength can be obtained, and a large frame structure with a long span can be obtained.

[0028]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a metal joint for a wooden building according to the present invention.

FIG. 2 is a perspective view showing a second embodiment of the metal joint for a wooden building according to the present invention.

FIG. 3 is an exploded perspective view of a joint portion between wooden members showing an embodiment constructed using the first joint hardware according to the present invention.

FIG. 4 is a longitudinal sectional view of a joining portion shown in FIG.

FIG. 5 is an exploded perspective view of a joint portion between wooden members showing a second embodiment constructed using the first metal joint according to the present invention.

FIG. 6 is a longitudinal sectional view of a joining portion shown in FIG.

FIG. 7 is a longitudinal sectional view of a joint portion between wooden members showing a third embodiment constructed using the first joint hardware according to the present invention.

FIG. 8 is a longitudinal sectional view of a joining portion shown in FIG. 7;

FIG. 9 is an exploded perspective view of a joint portion between wooden members showing an embodiment constructed using the second joint hardware according to the present invention.

FIG. 10 is a longitudinal sectional view of a joining portion shown in FIG. 9;

FIG. 11 is an exploded perspective view of a joint portion between wooden members, which has been conventionally performed.

[Explanation of symbols]

1 ... joining hardware 11 ... back plate 12 ... side plate
13 pin guide section 14 chin hook groove 15 drift pin hole 1
6 receiving plate 17 bolt hole 18 locking part 2 first wood member 21 bolt hole 22
... Cut part 3... Second wood member 31... Cut part 32
… Insert groove 33… Drift pin hole 4… Bolt 5… Nut 6… Drift pin 7… Gap

Continued on front page F-term (reference) 2E125 AA04 AA14 AA17 AA18 AB12 AC23 AG03 AG04 AG12 AG23 AG56 BB01 BB08 BB09 BB13 BB22 BB25 BB27 BB30 BB36 BC09 BD01 BE02 BE05 BE07 BE08 BF03 CA05 CA14 CA76 CA79 CA91 EA00 EA03 EA00 JA11

Claims (2)

[Claims] 1. A back plate (11) fixed to a first wooden member such as a pillar, a base, a beam or the like, and a pair of side plates (12) projecting on both sides of the back plate in a direction perpendicular to the back plate. , The back plate (1
1) and a receiving plate (1) disposed at the lower end of the pair of side plates (12).
6), a jaw hook groove (14) having an inclined pin guide portion (13) is formed on one side plate of the pair of side plates, and a drift pin hole (15) is formed on the other side plate. The back plate (11) has a plurality of bolt holes (17).
A metal joint for a wooden building, characterized by forming a shape. 2. The metal joint of a wooden building according to claim 1, wherein a locking portion (18) is formed on a back plate (11) of the metal joint.