JP2967048B2 - Connection structure of horizontal member of framed wooden building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a framed wooden building.
And a connection structure for connecting the horizontal members to each other.

[0002]

2. Description of the Related Art Conventionally, when connecting two structural members (in this case, horizontal members) which intersect alternately at an angle of 90 ° with each other, for example, a hut beam and a main building, by a frame construction method of a wooden house, for example, As shown in FIG. 11, a notch 3 is formed in at least one of the connecting portions of the horizontal members 1 and 2 such as a hut beam and a purlin.
The notch 3 connects the structural members 1 and 2 so as to be fitted.

[0003]

However, when two structural members, such as a hut beam and a purlin, are connected by the above-described construction method, the structural material at the notch has a large cross-sectional defect, and the seismic resistance and the like are improved. It becomes a neck on the top. In addition, the integrated strength of the connection cannot be so expected.

An object of the present invention is to provide a technique for firmly connecting structural members that alternately intersect at a predetermined angle such as 90 ° with each other by using a specific metal fitting to integrate them.

[0005]

According to the first aspect of the present invention, in a framed wooden construction, a cross-section of a cross member which alternately intersects at an angle of about 90 ° at an intersection thereof is used. A first fitting for embedding a part of the connecting fitting in a connection portion of the first horizontal member using the connecting fitting of the first embodiment.
The metal fitting embedding part is formed in the form of a dead end with a bottom, a part of the connecting metal fitting is embedded therein,
Through the opposing walls of the connecting bracket from the side of the horizontal member
A pin-shaped fixing member having a flat elliptical head is inserted so as to pass through and a part of the connection fitting is fixed to the first horizontal member , while a second horizontal member is fixed. A second fitting embedding portion for embedding another portion of the connection metal fitting is formed in a closed-end form with a bottom in the connection portion, and the other portion of the connection metal fitting is embedded in the second metal fitting embedding portion. together, walls thereof from the outside of the second horizontal member cross with the horizontal members, and to another opposing different almost 90 degrees with the wall portion of the connecting fitting
By fixing the other portions of the connecting fitting to the second horizontal member and head to plunge the flat pin-like fixing member so as to penetrate the part, first, second the horizontal bridging The materials are connected to each other via the connection fitting.

Here, as shown in FIG. 12, for example, it is also conceivable to form a slit across the connecting portion between the horizontal members 1 and 2 and insert a plate-like connecting metal fitting 7 into the slit to connect the slits. Can be However, a fixing member such as a pin 49 can be driven into the side surface of the horizontal member 2 from the direction A in FIG. In effect, the fixing member cannot be driven.

Further, it is conceivable to use a circular pipe-shaped connecting metal member 8 as shown in FIG. 3 instead of the plate-shaped connecting metal member 7. In this case, the side of the horizontal member 1 and the horizontal member 2
, It is possible to drive the fixing members such as the pins 9 alternately crosswise. However,
When the round pipe-shaped connecting fitting 8 rotates, the connecting fitting 8
The positional relationship between the through-holes 10 and 12 formed in the horizontal members 1 and 13 and the through-holes 11 and 13 formed in the horizontal members 1 and 2 is displaced, and it becomes difficult to drive the pin 9.

On the other hand, in the case of the connecting fitting of the square pipe type or the like according to the present invention, each of the disadvantages shown in FIGS. 12 and 13 is eliminated, and two structural members such as the horizontal members 1 and 2 which intersect alternately are used. Can be firmly connected. In addition, since this connecting bracket is embedded in wood, even if there is a fire, the connecting bracket is not directly fired, and the heat deforms the connecting bracket, making the frame structure itself unrepairable. Hard to fall into. In addition, since the connection fitting is not exposed to the outside, the appearance is good and it is easy to make up the face.

According to a second aspect of the present invention, there is provided an angle -shaped connecting metal fitting having a U-shaped cross section for connecting transverse members alternately intersecting at an angle of about 90 ° in a framed wooden building at the intersection. A first metal fitting embedding part for embedding a part of the connection metal fitting is formed in a dead end form with a bottom in a connection part of the first horizontal member, and a part of the connection metal fitting is formed here. At the same time , a pin-shaped or screw-shaped fixing member is inserted from the side of the first horizontal member so as to penetrate opposing walls of the connection fitting, and a part of the connection fitting is removed from the first horizontal member. And a second connecting member for embedding another portion of the connection fitting in a connection portion of the second connecting member.
Is formed in the form of a dead end with a bottom, and the other part of the connecting metal fitting is embedded in the second metal fitting embedded portion, and the second metal member intersects with the horizontal material from outside. And the opposite wall portion of the connection fitting is substantially
A pin-shaped or screw-shaped fixing member is pierced so as to penetrate another wall portion different by 90 degrees, and the other portion of the connection fitting is fixed to the second horizontal member. Wherein the horizontal members are connected to each other via the connection fitting. Further, the invention according to claim 3 has an L-shaped cross section.
Use a single angled fitting to penetrate one wall
A pin-shaped or screw-shaped fixing member
While fixing a part of the metal fitting to the first horizontal member,
Pierce through another wall that is approximately 90 degrees different from the wall.
The connecting metal fittings
By fixing the other part to the second cross member,
1, the second horizontal members are connected to each other via the connection fittings
It is characterized by doing.

According to a fifth aspect of the present invention, in order to embed a connecting member in the form of a square pipe, slits for accommodating a rectangular tube-like connecting member are formed in the first and second transverse members, respectively. It is formed as a square annular slit or a cross-girder slit. The invention according to claim 6 has a U-shape or an L shape.
In order to embed an angle-shaped connecting metal fitting having a U-shaped cross section, a U-shaped or L-shaped slit into which the thickness of the connecting metal having a U-shaped or L-shaped cross-section is inserted is provided in the first and second horizontal members. Each is formed.

[0011]

Embodiments of the present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a structural member via a connecting bracket 15 at an alternate intersection where a horizontal member 1 such as a hut beam and a horizontal member 2 such as a purlin intersect alternately at an angle of 90 °. It shows an example of a method of connecting 1 and 2. A rectangular pillar-shaped fitting embedding portion (concave portion) 16 which is opened on the upper surface of the lower horizontal member 1 is formed in a closed-end form with a bottom. A similar square pillar-shaped fitting embedding portion (concave portion) 17 is formed in a dead end form with a bottom so as to be opened on the lower surface.

A pin hole 18 is formed from the side surface of the horizontal member 1 so as to penetrate the metal fitting embedded portion 16, and a pin is also formed in the upper horizontal material 2 so as to cross the metal fitting embedded portion 17. Holes 19 are formed, and these pin holes 18, 19 are 9
They intersect alternately with an angle difference of 0 °. In addition,
The pin holes 18 and 19 can be provided so as to penetrate to the opposite side surfaces of the horizontal members 1 and 2. However, if the pin holes 18 and 19 are formed in a dead end form which does not reach the opposite side surfaces, the pin holes are formed outside. Since it does not appear, it can be said that it is preferable in appearance.

[0013] Each bracket embedding portion 1 of these horizontal members 1 and 2
The connecting fittings 15 embedded in 6 and 17 have a substantially square or rectangular quadrangular cylindrical shape, and the height HA in the axial direction in FIG. 2 is equal to the depths d1 and d2 of the fitting embedded sections 16 and 17, respectively. It is set equal to or slightly shorter than the total dimension. Further, the connection fitting 15 is provided with a lower fitting portion 15 that fits into the fitting embedding portion 16 of the lower horizontal member 1.
a, and an upper fitting portion 15b that fits into the fitting embedding portion 17 of the upper horizontal member 2, and these form a single rectangular tube.

As shown in FIGS. 3 and 4, the lower fitting portion 15a of the connecting fitting 15 has the connecting fitting 15a.
A pin hole 21 that penetrates the two opposite wall portions is formed, and the upper fitting portion 15b intersects the lower pin hole 21 alternately by 90 ° and penetrates another two wall portions. A pin hole 22 is formed. These pin holes 21 and 22 play a role as a penetrating portion penetrating the connection fitting 15, and the lower pin hole 21 matches the pin hole 18 of the horizontal member 1 in FIGS. 1 and 2. , The upper pin holes 22 respectively correspond to the pin holes 19 of the horizontal member 2. For example, a draft pin 20 is driven as a pin-shaped fixing member so as to penetrate the pin hole 18 of the horizontal member 1 and the pin hole 21 of the metal member 15, and the pin hole 19 of the horizontal member 2 and the metal member 15 are fixed. Another draft pin 20 is driven so as to penetrate through the pin hole 22. Draft pin 2
A wood screw-shaped fixing member may be used instead of zero.

As shown in FIG. 7, for example, the draft pin 20 has a shaft-shaped pin leg 20a having a circular cross section and a flat elliptical head 20b connected to one end thereof. It is smoothly connected, and the major axis of the head 20b is larger than the diameter of the pin leg 20a by a certain amount, so that it protrudes to both sides from the outer surface of the pin leg 20a. Such a draft pin 20
1 and FIG. 2, which are driven through pin holes 18 and 19 formed in the horizontal members 1 and 2, penetrate through the pin holes 21 and 22 of the metal members 15, and form the connecting metal members 15 inside the horizontal members 1 and 2. The lower fitting portion 15a and the upper fitting portion 15b are connected to the horizontal members 1 and 2, respectively.
2 (see FIG. 2 (b)), and as shown in FIG. 7 (b), the head 20b bites into an opening such as the pin hole 18 and is prevented from falling off.

As shown in FIG. 2 (a), each of the depths d1 and d2 of the metal fittings 16 and 17 formed in the horizontal members 1 and 2 is the height of the horizontal member 1 or 2. H1 or H2
Is desirably set to about 1/2 to 1/3 of the above. 1 /
When the depth dimensions d1 and d2 are made deeper (larger) than 2, the effect of reducing the cross-sectional defects of the transverse members 1 and 2 is reduced,
This may have an adverse effect on durability and the like. Conversely, if the depths d1 and d2 are smaller than 1/3, the connection strength may be impaired. Therefore, it is preferable to set the depths d1 and d2 in the above-described range.

In the above construction method, for example, FIG.
The connecting fitting 15 is inserted into the fitting embedding portion 16 of the hut beam 1 in the portion A.
Into the upper part of the fitting 15 and the purlin 2
At the metal fitting embedded portion 17. And
By driving the pins 20 from the side of the hut beam 1 and the pins 20 from the side of the purlin 2 so as to be staggered by 90 °, the hut beam 1 and the purlin 2 are connected via the connection fittings 15. And can be firmly connected. Such a structure can be similarly applied to the connection portions B, C, and D in FIG. 8. Further, not only the connection between the horizontal members but also the vertical members are staggered at an angle of, for example, 90 °. Can also be applied to intersections that intersect. In that case, the connection fitting 15 is used in a state where it is laid down. FIG.
In a portion where the hut beam 1 and the vertical member 5 such as a column intersect at a right angle, for example, a plate-like connecting metal fitting 14 is provided with both slits 1a,
5a and can be fixed by a draft pin 20 '.

FIG. 5 shows a long connection fitting 25 which is longer in the axial direction than FIG. 4. In this case, the lower fitting part 25a and the upper fitting part 25b have two or more pin holes 26, respectively.
27 can also be formed. This is because the dimension in the axial direction of the metal fitting 25 is increased, and in order to strengthen its fixing,
This is intended to increase the number of pin holes and thus the number of pins to be driven.

Further, instead of forming a square pillar-shaped fitting embedding portion for fitting the square tubular fittings 15 and 25, as shown in FIG. 6A, the square tubular connecting fittings 15 or 25 are used. Into which a rectangular tube-shaped slit 28 (metal fitting embedding portion) can enter. For this formation,
As shown in FIG. 6B, a chainsaw cutting device 3
For example, there is a method of cutting the square annular slit 28 into each side by using 0. Here, one side forming the annular slit 28 may protrude from each other to form a cross-girder slit.

FIG. 9 shows a connecting bracket 31 in the form of an angle having a U-shape in cross section, excluding one wall portion in the form of a square pipe. A box in which the connecting bracket 31 enters the horizontal member 1 or the like is shown. The metal mold embedded portion 32 of the mold may be formed, and FIG.
A U-shaped slit (fitting portion) 33 may be formed as shown in FIG. In any case, the U-shaped connecting bracket 3
1 is fitted into the metal fitting embedding part 32 or 33. The same applies to the connection with the upper horizontal member. Then, the pin hole 34 can be formed so as to penetrate the two wall surfaces of the connection fitting 31, and another pin hole 35 can be formed alternately by penetrating another wall which is different from the pin hole 34 by 90 °.

Further, as shown in FIG. 10, it is also possible to use a connecting bracket 36 having an L-shaped angle form in which two walls of a square pipe form are removed. In this case, the connection fitting 3
6, a pin hole 37 is formed below one wall and a pin hole 38 is formed above the other wall. Then, in order to embed the metal fittings 36, for example, an L-shaped slit (metal fitting embedded portion) 39 is formed in the lower horizontal member 1, and for example, the metal fittings 3 are formed.
A pin hole 40 is formed from the side of the horizontal member 1 so as to coincide with the pin hole 37 of No. 6. A similar L-shaped slit is formed in the upper horizontal member, and the metal fitting 36 is formed from the side.
Then, a pin hole is formed so as to match the pin hole 38, and each pin is driven and fixed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3 is a perspective view showing a relationship between a connection fitting and a pin.

FIG. 4 is a diagram showing positions of respective pin holes of a connection fitting.

FIG. 5 is a perspective view showing an example of a long connecting fitting.

FIG. 6 is a perspective view showing a modification of the metal fitting embedding part.

FIG. 7 is a view showing an example of a draft pin.

FIG. 8 is a diagram showing an example of a connecting portion using a connecting fitting in the form of a square pipe.

FIG. 9 is a perspective view when a U-shaped connecting bracket is used.

FIG. 10 is a perspective view when an L-shaped connection fitting is used.

FIG. 11 is a perspective view showing an example of a conventional connection method.

FIG. 12 is an explanatory view showing inconvenience when using a plate-shaped connection fitting.

FIG. 13 is an explanatory view showing the inconvenience of using a cylindrical connection fitting.

[Explanation of symbols]

 1 and 2 horizontal member 15 connecting fitting 15a lower fitting portion 15b upper fitting portion 16 and 17 fitting embedded portion 18 and 19 pin hole (horizontal material side) 20 draft pin 21 and 22 pin hole (fitting side) 25 , 31,36 Connecting fittings 28,32,33,39 Fitting embedded part

Claims (6)

(57) [Claims] 1. A connecting member in the form of a square pipe is used to connect cross members which alternately intersect at an angle of approximately 90 ° in a framed wooden building at the crossing thereof. A first metal fitting embedding part for embedding a part of the connecting metal fitting is formed in a dead end form with a bottom in the connection part, and a part of the connecting metal fitting is embedded therein, and the first horizontal part is formed. A pin-shaped fixing member having a flat elliptical head is pierced from the side of the member so as to penetrate the opposing walls of the connection fitting, and a part of the connection fitting is connected to the first horizontal member. And a second metal fitting embedding part for embedding another part of the connecting metal fitting is formed in a dead end form with a bottom in the connection part of the second horizontal member.
Another part of the connection fitting is embedded in the fitting embedded part of the second fitting, and another part of the second fitting that intersects with the transverse member from outside and is different from the wall of the connecting fitting by approximately 90 degrees. A pin-shaped fixing member having a flat elliptical head is pierced so as to penetrate the opposing walls, and the other part of the connection fitting is fixed to the second horizontal member. And a second connecting member for connecting the horizontal members via the connecting metal fittings. 2. In a framed wooden construction, in order to connect cross members which alternately intersect at an angle of about 90 ° at the intersection, an angle -shaped connecting bracket having a U-shaped cross section is used. A first metal fitting embedding part for embedding a part of the connection metal fitting is formed in a dead end form with a bottom in a connection part of the horizontal member, and a part of the connection metal fitting is embedded therein, Opposite to the connecting bracket from the side of the horizontal member
A pin-shaped or screw-shaped fixing member is pierced so as to penetrate the wall to be fixed, and a part of the connecting metal fitting is fixed to the first horizontal member, while the connecting member of the second horizontal member is connected to the first horizontal member. Forming a second metal fitting embedding part for embedding another part of the connecting metal fitting in a dead end form with a bottom, embedding the other part of the connecting metal fitting in the second metal fitting embedding part,
Another wall that intersects the horizontal member from the outside of the horizontal member and that is different from the opposite wall portion of the connection fitting by approximately 90 degrees.
By inserting a pin-shaped or screw-shaped fixing member so as to penetrate through and fix the other part of the connection fitting to the second horizontal member, the first and second horizontal members are connected to each other. A connection structure for a horizontal member of a timber-framed wooden building, wherein the connection member is connected via the connection fitting. 3. An angle of about 90 ° in a framed wooden building.
Connect cross members that alternately intersect with each other at the intersection
In order to do this, use an angle-shaped connecting bracket with an L-shaped cross section.
I Part of the connection fitting is embedded in the connection part of the first horizontal member.
Of the first metal fitting embedded part with a bottomed dead end
Forming and embedding a part of the connection fitting here
Then, from one side of the first horizontal member,
Protrude a pin-shaped or screw-shaped fixing member through the wall.
And fix a part of the connection fitting to the first horizontal member.
On the other hand, the connection part of the second horizontal
The bottom of the second metal fitting embedding part for embedding the part
It is formed in a stop form, and the second metal fitting embedded portion is
Embed the other part of the connection fitting, and
Crossing the horizontal member from outside the frame member, and
Penetrates another wall that is different from the one wall by approximately 90 degrees
Insert a pin- or screw-shaped fixing member
The other part of the connecting bracket is fixed to the second horizontal member.
And the first and second horizontal members are connected to each other by the connection fitting.
Beside a timber framed building characterized by being connected via
Connection structure of the frame. 4. The first horizontal member from a side surface thereof.
A pin hole is formed so as to cross the metal fitting embedding part, and a pin hole is also formed in the second transverse member so as to cross the second metal fitting embedding part. The connecting bracket is formed in a dead end form which alternately intersects at an angle difference of 90 ° and does not reach the opposite side surface of the first and second cross members, and the connecting fitting is connected to the first and second fittings. A pin-shaped fixing member is driven into the pin holes of the first and second transverse members in a state of being embedded across the portion, and penetrates the pin holes formed in the connection fitting, respectively, and claims 1 on a side surface of the side is prevented penetrate therethrough positioned the tip of the fixing member substantially in a position corresponding to the bottom of the pin hole does not penetrate through 3 noise
The connecting structure of the horizontal members of the timber framed building described in Reka. 5. A slit for accommodating the thickness of the rectangular tubular connecting fitting is formed in each of the first and second horizontal members for embedding the connecting fitting in the form of a square pipe according to claim 1 or 4. Is a square ring-shaped slit or a girder-shaped slit formed as a connection structure of horizontal members of a timber-framed wooden building. 6. The U-shaped or L-shaped cross-section connecting bracket according to any one of claims 2 to 4 , wherein the U-shaped or L-shaped cross-section connecting bracket has a thickness. The U-shaped or L-shaped slit to enter is the first,
The connecting structure of the horizontal members of the framed wooden building formed on the second horizontal members, respectively.