JP2871528B2 - Connecting metal fittings and connecting devices for building materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting fitting and a connecting device used for connecting building materials.

[0002]

2. Description of the Related Art In constructing a building such as a house, in order to connect building materials such as columns and beams, beams and girders in an intersecting manner on a horizontal plane, a structure as shown in FIG. 10 is sometimes employed. Was.
In this structure, a step-like projection 81 (see FIG. 10C) is provided at an end of a building material (hereinafter, referred to as a “horizontal building material”) 80 which is, for example, a beam or a girder, and is, for example, a pillar. The building material (hereinafter referred to as “vertical building material”) 82 has the protrusion 81
Are provided, and these are fitted. Then, the fastening bolt 8 is stretched between the two building materials 80 and 82.
3 was to penetrate.

[0003]

The task of providing projections 81 on the horizontal building material 80 and providing recesses on the vertical building material 82 requires skill, and in recent years, the shortage of human resources in various industries has been raised. It is difficult to adopt this structure. In a prefabricated house that produces a building material itself or its structure in a factory, the difficulty due to the shortage of human resources as described above is being avoided.
However, there is a fatal disadvantage that the strength is reduced due to the weakening of the section modulus caused by the provision of the concave portion. In particular, when a plurality of horizontal building materials 80 are intensively connected to the vertical building material 82 at the same level (that is, when concave portions are provided on a plurality of circumferential surfaces of the vertical building material 82), the strength is reduced. Problem becomes serious,
Therefore, in order to avoid this, for example, the horizontal building material 80
In some cases, the connection height of the building was changed, which affected the design of the entire building.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made in consideration of the above circumstances, and has a construction material connecting metal fitting which can be easily connected to each other without causing a reduction in section modulus and the like. It is an object to provide a coupling device.

[0005]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the connection fitting according to the present invention includes a main body plate portion interposed between the building materials whose longitudinal surfaces abut against each other, and a hook projecting from the main body plate portion so as to be engaged with one of the building materials so as not to fall. A piece, a support piece protruding from the main body plate to support the other building material, and a positioning piece protruding from the main body plate so as to engage with at least one of the building materials so as not to be laterally movable, Previous
The positioning piece is formed by cutting and raising a part of the main body plate
After the positioning piece is formed on the main body plate.
Fastening bolts with slip-through portions provided between both building materials
It is characterized in that it is a bolt insertion hole for use .

On the other hand, the connecting device according to the present invention has a connecting metal fitting to be attached to one of the building materials whose longitudinal surfaces abut each other, and an end face plate to be attached to the other building material. The above-mentioned is used, and a hook portion is provided on one of the connecting metal fitting and the end face plate, and an engaging portion which can be engaged with the hook portion while increasing a mutual approach force is provided on the other. It is characterized by having.

[0007]

In the connecting fitting according to the present invention, the hook piece is engaged with the vertical surface of one of the building materials (vertical building material), for example, a pillar, and the main body plate is brought into contact with the building material. Attach with By doing in this way, the connection fitting is a mating building material (horizontal building material) whose support piece is, for example, a beam.
It is in a state protruding toward. Therefore, it is possible to connect the horizontal building material to the vertical building material by depositing it on the bearing piece.

Since the main body plate is provided with a positioning piece projecting toward at least one of the building materials (for example, the horizontal building material), when the building materials are connected as described above, the positioning piece and the positioning piece are connected to each other. The engagement with the building material enables accurate and easy positioning between the two building materials. In forming such a positioning piece, if the main body plate is cut and raised, a penetrating portion corresponding to the positioning piece is formed in the main body plate. Therefore, if such a penetrating portion is used as an insertion hole for a fastening bolt extending across both building materials, the trouble of separately forming a bolt insertion hole in the main body plate portion can be omitted. .

On the other hand, in the connecting device according to the present invention, an end plate is used in combination with the above-mentioned connecting fitting. This end face plate is attached in advance to a building material such as a beam. The connection fitting and the end face plate are provided with a hook portion provided on one side (for example, the connection fitting) and an engagement portion provided on the other side (for example, the end face plate) while increasing the degree of proximity to each other. (I.e., while attracting each other). Therefore, both building materials can be positioned more easily and firmly.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of a connecting fitting 1 according to the present invention. The connecting fitting 1 includes a building material (vertical building material) 2 as a pillar as shown in FIG. When connecting the building material (first horizontal building material) 3 to be a beam, or the vertical building material 2 and the building material (second horizontal building material) 4 to be a girder
It is used when concatenating with.

As shown in FIG. 1 (a), the connecting fitting 1 is formed by bending a plurality of portions of a strip material as a material in a predetermined direction. A first hook piece 8 formed by bending an upper side in a direction perpendicular to the plate surface, and a first hook piece by cutting and raising a part of the main body plate portion 7 near the lower portion of the main body plate portion 7. 8 and a lower portion of the main body plate portion 7 orthogonally bent to the opposite side to the first and second hooking pieces 8 and 9. A part of the main body plate portion 7 is cut and raised at a portion between the upper and lower portions of the bent support piece 10 and the first and second hook pieces 8 and 9 so as to be orthogonal to the support piece 10 in the same direction. And a positioning piece 11 formed by bending.

A plurality of (four in the drawing) mounting holes 15 used for fixing to the vertical building material 2 are formed in the main body plate portion 7, and the support piece 10 has a first horizontal side. A plurality (three in the drawing) of mounting holes 16 used for fixing to the building material 3 or the second horizontal building material 4 are formed.
Reinforcing ribs 17 are formed at the intersection corners between the main body plate portion 7 and the support pieces 10 by a punching method.

A case where the vertical building material 2 and the second horizontal building material 4 are connected by using the connecting fitting 1 having such a configuration will be described. First, as shown in FIG. 3B, the horizontal groove 2 in which the first hook piece 8 and the second hook piece 9 are fitted to the vertical building material 2.
Engrave 0,21. On the other hand, as shown in FIG. 3A, a vertical groove 23 for fitting the positioning piece 11 and the reinforcing rib 17 is formed in the second horizontal building material 4. In addition, vertical building materials 2
Fastening bolt 2 in a state of straddling between
When it is necessary to penetrate 5 (see FIG. 2), bolt holes 26, 27 and a mounting recess 29 for a nut 28 (see FIG. 1B) are formed in each of the building materials 2, 4.

In this case, in the connection fitting 1, a cutting and raising method is used in forming the positioning piece 11 and the second hooking piece 9 as described above. Therefore, the main body plate 7
Are formed with through portions 32 and 33 corresponding to the positioning pieces 11 and the second hook pieces 9. Therefore, one of these through portions 32 and 33 is connected to the fastening bolt 2.
It is used as a bolt insertion hole for 5. Therefore, the bolt insertion holes 26 and 27 formed in each of the building materials 2 and 4 are made to coincide with the positioning of the through portion 32 or 33.

Next, the first and second hook pieces 8 and 9 of the connection fitting 1 are fitted into the lateral grooves 20 and 21 of the vertical building material 2. Thereby, the connection fitting 1 is engaged with and held by the vertical building material 2 so as not to fall. Then, in this state, a fastener 35 such as a wood screw, a nail, or a through bolt is screwed or pierced into each of the mounting holes 15 of the main body plate portion 7 to fix the connection fitting 1 and the vertical building material 2.

Next, the second horizontal building material 4 is deposited on the bearing piece 10 of the connection fitting 1, and its vertical groove 23 is fitted to the positioning piece 11 of the connection fitting 1. Thereby, the second horizontal building material 4
Is not allowed to move laterally with respect to the connecting fitting 1 (that is, the vertical building material 2), and positioning is performed. At this time, the reinforcing ribs 17 of the connection fitting 1 also necessarily fit in the vertical grooves 23, so that the second horizontal building material 4 is naturally positioned so as not to be able to move laterally. It is. Then, the fastener 35 is screwed or pierced into each mounting hole 16 of the support piece 10 to fix the second horizontal building material 4 and the connection fitting 1.

Finally, if necessary, the vertical building material 2 and the second
A fastening bolt 25 is provided so as to extend over the horizontal building material 4. The procedure for connecting the vertical building material 2 and the first horizontal building material 3 is substantially the same as described above. Note that such a work procedure is not limited. For example, the connecting fitting 1 is first attached to the second horizontal building material 4, and in this state, the first and second hook pieces 8, 9 of the connecting fitting 1 are fitted into the lateral grooves 20, 21 of the vertical building material 2. (However,
The connection metal fitting 1 and the vertical building material 2 are not fixed by the fastener 35), and then a procedure of piercing the fastening bolt 25 may be adopted.

Further, it is not limited that the fastening bolt 25 penetrates the connecting fitting 1, but the fastening bolt 25 can be provided near the connecting fitting 1 as shown in FIG. . By the way, the vertical dimension of the main body plate portion 7 may be variously prepared according to the size of the building material to be attached. Further, the height, the number, the shape, and the like of the first and second hooking pieces 8 and 9, the support pieces 10, and the positioning pieces 11 with respect to the main body plate portion 7 can be appropriately changed. The hanging pieces 8 and 9 may have only one of the first and second pieces. Alternatively, after forming a horizontal groove on the end surface of the horizontal building material 3 or 4, the supporting piece 10 may be fitted into the horizontal groove. It may be configured.

In particular, a plurality of positioning pieces 11 may be provided in the left-right direction or the up-down direction, the direction of projecting from the main body plate portion 7 may be reversed from that of the above-described embodiment, and the positioning pieces 11 may be protruded from both the main body plate portion 7. Can be changed as appropriate. The first and second hook pieces 8 and 9 with respect to the main body plate portion 7,
In order to provide the support piece 10 and the positioning piece 11, welding or screwing of another member may be performed instead of the bent structure (including cut-and-raised). In this case, a bolt insertion hole for penetrating the fastening bolt 25 may be separately formed in the main body plate portion 7.

FIGS. 5 to 7 show a second embodiment of the connecting fitting 1 according to the present invention. This connecting fitting 1 is used for connecting the first and second horizontal building materials 3 and 4. FIG. Can be The most different point of the connection fitting 1 of the second embodiment from the first embodiment is that a plurality of (three in the drawing) mounting holes 37 are also provided in the hook piece 8. That is, the connecting fitting 1 is attached to the second horizontal building material 4 in such a manner that the hook 8 is engaged with the upper surface thereof. Then, the fastener 35 (see FIG. 2) is screwed or pierced into the mounting hole 37 to be fixed. To obtain such an effect, the hook 8 provided in the second embodiment is formed larger than the first hook 8 and the second hook 9 of the first embodiment.

When the first and second horizontal building materials 3 and 4 are both thin as shown in FIG. 7, an L-shaped reinforcing metal fitting 38 is used instead of using the fastening bolt 25. It is also possible to use. FIGS. 8 and 9 show a connecting device 50 according to the present invention. The connecting device 50 is connected to a connecting fitting 1 attached to a second horizontal building material 4 and to a first horizontal building material 3. And an end face plate 51 to be attached.

The connecting fitting 1 has basically the same construction as that shown in the first and second embodiments, and includes a main body plate 7, a hooking piece 8, a supporting piece 10, and a positioning piece. 11 are provided. Further, mounting holes 15, 16, 3 are provided in the body plate 7, the hook 8, and the bearing 10, respectively.
7 is formed, and a reinforcing rib 17 is provided at an intersection corner between the main body plate portion 7 and the support piece 10. Further, in this embodiment, the penetrating portion 3 by the positioning piece 11 is
2, a bolt insertion hole 52 dedicated to the penetration of the fastening bolt 25 is formed.

The connection fitting 1 differs from the above embodiments in that a hook portion 55 is provided above a base portion of the positioning piece 11. The hook portion 55 has an inclination that can provide a so-called retraction effect, in which the side of the main body plate portion 7 is lower and the height of the hook portion 55 is higher toward the protruding end of the positioning piece 11. On the other hand, the end face plate 51 is a plate-like object formed in substantially the same size and shape as the main body plate portion 7 of the connection fitting 1, and the plate face thereof has a communication hole 57 that can match with the bolt insertion hole 52.
Further, a notch 58 that can match the reinforcing rib 17 is provided. A plurality (four in the drawing) of mounting holes 59 used for fixing to the first horizontal building material 3 are formed.

The end plate 51 is provided with a connecting fitting 1.
Is provided with an engaging portion 62 which can be engaged with the hook portion 55. The engaging portion 62 is formed to have a groove shape extending upward from the cutout portion 58 in association with the hook portion 55 being positioned directly above the reinforcing rib 17 in the connection fitting 1. ing. In the connecting device 50 having such a configuration, the connecting fitting 1 is connected to the second horizontal building material 4.
In a state where the end plate 51 is attached to the first horizontal building material 3, the end plate 51 is contacted and lowered from above so as to be along the main body plate portion 7 with respect to the connection fitting 1. I do. Thereby, the hook part 55 of the connection fitting 1 and the engagement part 62 of the end face plate 51 come into engagement with each other while increasing the mutual approach force. Therefore, the connecting fitting 1 and the end face plate 51 (that is, the first and second horizontal building materials 3 and 4) are not allowed to move laterally, but also do not rattle in the horizontal direction and do not separate from each other. In addition, they are connected while being positioned with respect to each other. Also, at this time, the notch 58 of the end face plate 51 necessarily fits with the reinforcing rib 17 of the connection fitting 1, so that the above-described actions can be naturally enhanced. .

In such a connection state, the reinforcing rib 17 of the connection fitting 1 is provided in the notch 58 of the end face plate 51.
Further, the positioning pieces 11 are fitted into the engaging portions 62, respectively. That is, the reinforcing ribs 17 and the positioning pieces 1
Since part or all of the amount of protrusion due to 1 is absorbed by the thickness of the end face plate 51, the vertical groove 23 to be applied to the first horizontal building material 3 can be made shallow, and the processing becomes easier accordingly. There is.

The connecting device 50 can also be used for connecting the vertical building material 2 and the horizontal building material 3 or 4 (see FIG. 1B or 2). In the connection bracket 1,
The hook portion 55 is provided separately (independently) from the positioning piece 11.
It is also possible to provide. In addition, the coupling part 1 has an engaging portion 6.
It is also possible to provide a hook portion 55 on the end face plate 51.

[0027]

In the connecting fitting according to the present invention, the hook piece is engaged with one of the building materials (vertical building material), for example, a pillar, and the main body plate is brought into contact with the vertical surface. Attach it in the state. As a result, the connection metal fitting is in a state in which its bearing piece protrudes toward the mating building material (horizontal building material) such as a beam, for example. Concatenation can be performed. And since the positioning piece which protrudes toward at least one building material (for example, a horizontal building material) is provided in the main body plate part, when connecting the building materials as described above, the positioning piece and the building material are used. The positioning between the two building materials can be performed accurately and easily by the engagement with. For this reason, this kind of connecting work does not require any skill, the processing applied to the building material is simple, and needless to say, the building material does not extremely weaken the section modulus.

If the main body plate portion is cut and raised to form the positioning piece, a penetrating portion corresponding to the positioning piece is formed in the main body plate portion. Can be used as an insertion hole for a fastening bolt that extends across both building materials. Therefore, the trouble of separately forming the bolt insertion hole in the main body plate portion can be omitted.

On the other hand, in the connecting device according to the present invention, an end plate is used in combination with the above-mentioned connecting fitting. This end face plate is attached in advance to a building material such as a beam. The connection fitting and the end face plate are provided with a hook portion provided on one side (for example, the connection fitting) and an engagement hole provided on the other side (for example, the end face plate) to increase the degree of proximity to each other. (I.e., while attracting each other). Therefore, both building materials can be positioned more easily and firmly.

Further, by attaching the end face plate in advance, for example, at the time of shipping the building material to the factory or transporting it to the site, it is possible to obtain a secondary effect that the end portion of the building material can be protected. it can.

[Brief description of the drawings]

1A and 1B show a first embodiment of a connection fitting according to the present invention, wherein FIG. 1A is an overall perspective view, and FIG. 1B is a perspective view showing a connection operation state.

FIG. 2 is a partially broken side view showing the connection structure according to the first embodiment.

FIGS. 3A and 3B show processing parts applied to a building material side, wherein FIG. 3A is a perspective view of a horizontal building material, and FIG. 3B is a perspective view of a vertical building material.

FIG. 4 is a side view showing another connection structure according to the first embodiment.

FIG. 5 is a perspective view showing a second embodiment of the connection fitting according to the present invention.

FIG. 6 is a perspective view showing a connection operation state according to a second embodiment.

FIG. 7 is a perspective view showing another connection work situation according to the second embodiment.

FIG. 8 is an exploded perspective view showing the connecting device according to the present invention.

FIG. 9 is a side sectional view showing a connection structure by a connection device.

FIG. 10 shows a conventional construction material connection structure, in which (a)
Is a side view, (b) is a plan view, and (c) is a perspective view of a processed portion applied to one building material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection metal fitting 2 Vertical building material 3 1st horizontal building material 4 2nd horizontal building material 7 Main body plate part 8 Hook piece (1st hook piece) 9 2nd hook piece 10 Bearing piece 11 Positioning piece 25 Fastening bolt 32 Penetration part (bolt insertion hole) 50 coupling device 51 end face plate 52 bolt insertion hole 55 hook part 62 engagement part

Claims (2)

(57) [Claims] 1. A main body plate portion (7) interposed between building materials whose longitudinal surfaces abut each other, and a pull projecting from the main body plate portion (7) to be engaged with one of the building materials so as not to fall. A hanging piece (8) (9), a support piece (10) protruding from the main body plate (7) to support the other building material, and a transverse piece with respect to at least one building material from the main body plate (7). A positioning piece (11) protruding so as to be immovably engaged with said positioning piece (11);
It is formed by raising the main body plate (7)
The penetrating part (32) generated after the formation of the positioning piece (11)
For fastening bolts (25) provided straddling between both building materials
A connecting metal fitting for a building material characterized by having a bolt insertion hole . 2. A connecting metal fitting (1) which has a connecting metal fitting (1) attached to one of building materials whose longitudinal surfaces abut against each other and an end face plate (51) which is attached to the other building material.
The connection fitting according to claim 1 is used for the connection fitting (1).
Alternatively, one of the end plates (51) has a hook portion (5
5) The connecting device for a building material, characterized in that the other end is provided with an engaging portion (62) that can engage with the hook portion (55) while increasing the mutual approach force.