JP2509783B2 - Building lateral member connection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal member such as a wooden beam and a beam, a beam and a girder (including a member corresponding to a beam or a girder in a laminated structure building or a building of a panel construction method). The present invention relates to a device for connecting a transverse member at a right angle.

[0002]

2. Description of the Related Art Conventionally, a horizontal member connecting device for such a building has been framed in Japan since ancient times.
Especially in buildings with laminated materials structure and buildings with panel construction method,
Connecting fittings are used. Also, in the frame construction method, in order to save the material, the connecting metal fittings assist from the recent tendency to secure the necessary connecting strength by not only notching the thickness section when using a thin material. Is used for. Examples of such connecting fittings include box hardware and battledore bolts.

FIG. 4 shows the box metal product, which is screwed by being applied to the side surface of the main transverse member 30 such as a beam or girder on the side to be connected, and the transverse member 32 is received accordingly. The main body 34 has a substantially box-like shape with an obliquely upward opening, and a screwing locking piece for the main transverse member 30 is provided on the upper end thereof, and a screwing flange piece is provided on both sides thereof so as to project. In addition, the battledore bolt is formed by nailing a flat battledore portion on the side surface of the sub-transverse member 32, and the bolt portion on the other end side is passed through the opposite surface of the main transverse member 30 to be fixed with a nut.

[0004]

In the case of the frame,
Because the main lateral member has a lateral part that is inserted and the driving part is notched, and the dovetail-shaped dovetail is cut into it, it is the sum of the driving and the dovetail in the cross section of the main lateral part where the load is excessively applied. The ratio of defects is extremely high, and it is difficult to secure the necessary strength in relation to material saving, especially in the places where stress is more likely to concentrate than load. However, even if a box metal object that does not require cutting is used, it may be inconvenient because it is exposed vertically and horizontally.

Regarding this point, generally, the connecting portions such as beams and girders are hidden by the ceiling material and the floor material, but in the case of a simple building in which the ceiling material is omitted, or in order to use the attic highly as a room, the ceiling is used. When omitting the material, the metal box is not visible because it is invisible, and even when the battledore bolt is used, the bright metal fitting nailed to the side surface of the secondary lateral member is exposed.

The present invention has been made in view of the above circumstances.
Since connecting metal fittings are used to connect beams and girders, and it is not necessary to provide notches that lack strength for the connection, the necessary strength can be secured even when using thin materials. An object of the present invention is to provide a lateral member connecting device for a building, which is invisible and therefore has a good appearance even in the interior without the ceiling material.

[0007]

In order to achieve the above-mentioned object, the present invention provides a main transverse member which is a main frame of a building,
In a horizontal member connecting device in which a sub-horizontal member that is erected on it is abutted at a right angle, a vertical elongated steel plate bends between the horizontal members in opposite directions, and a long hole is formed in the lower center of the middle straight wall. With the joint plate interposed, the lower end where the joint plate fits on the end face of the sub-transverse member and the concave notch for closing both sides are widely formed, and at the lower end of the concave notch the joint plate is connected. Forming a driving groove into which the refraction piece is inserted,
The joint plate is screwed to the sub-transverse member at the recess, and the upper bending piece of the joint plate of this sub-transverse member is hooked on the upper surface of the main transverse member and screwed, and then screwed diagonally from the upper surface of the sub-transverse member. The present invention is characterized in that the bolt is inserted, the tip end thereof is passed through the long hole of the joint plate and is screwed into the main transverse member side, and is tightened and connected.

[0008]

In the above construction, in order to connect the sub-transverse member to the sub-transverse member, the joint plate is screwed to the end surface of the sub-transverse member, and the sub-transverse member is hung on the main transverse member by the upper bending piece thereof. , The upper bending piece is screwed to the main transverse member. As a result, the joint plate is connected between the main transverse member and the sub-transverse member to be in a connected state.

Looking at the joint structure with respect to the joint plate, the joint plate is not only detached in the axial direction (longitudinal direction of the sub-transverse member) by screwing the two joint members, but of course the main joint is of course maintained. The upper bending piece hangs flatly on the lateral member, and the secondary lateral member is fixed so as not to be axially rotatable by the fitting form. Regarding the processing of the load applied to the sub-transverse member, the lower bending piece is applied to the follow-up groove and is received by screwing, and the upper bending piece is received by being applied to the main lateral member.

[0010]

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

1 and 2 show an embodiment in which a small beam or a floor beam is erected on a large beam. A main horizontal member 1 as a large beam and a sub-horizontal member 3 laid on it. Are connected via the joint plate 5, and the connection is strengthened by the screw bolt 7.

The joint plate 5 is formed by bending a rectangular steel plate. An upper bending piece 9 for hanging on the upper surface of the main transverse member 1 is provided at the upper end at a right angle, and a lower end of the sub-transverse member 3 is provided at the lower end. A lower refraction piece 11 to be inserted into the end face is provided in a protruding manner, and the upper refraction piece 9 is formed longer than the lower refraction piece 11.

The joint plate 5 is provided with through holes 15 for the mounting screws 13 at the four corners between the upper and lower bends, and a vertically elongated hole 17 is formed at the width center of the lower end portion. Also,
The upper bending piece 9 is provided with through holes 21 of the connecting screws 19 in an even array corresponding to each corner position of the triangle.

Screw bolts are used for the mounting screw 13 and the connecting screw 19, and for the screw bolt 7,
Coach screw bolts are used.

Of the main transverse member 1 and the sub-lateral member 3, only the sub-lateral member 3 is machined, and the sub-lateral member 3 is provided with a recessed portion 23 at its end face, and is formed from an upper surface a little away from the end. A bolt hole 25 is obliquely formed at the lower end of the recess 23. The recessed portion 23 is formed wide at a depth equal to its thickness so that the joint plate 5 can fit in a flat pad.

Therefore, the joint plate 5 has a uniform end surface and outer surface of the sub-transverse member 3, but the end surface of the sub-transverse member 3 is slightly protruded (for example, to about 5 mm), and the main transversal member 1 is also joined so as to be joined. Even if a recessed portion corresponding to a recess is provided on the side surface, it is not contrary to the gist of the present invention because the recessed portion is very small and, in particular, the recess is not formed.
The same applies to the case of FIG. 3 described later.

Further, the recess 23 is open only at the upper end,
A closing groove 27 into which the lower bending piece 11 of the joint plate 5 is inserted is formed at the closed lower end. However, the upper end of the recess 23 may also be closed. Further, on the upper surface of the sub-transverse member 3, a recess 29 having a V-shaped cross section on which the head of the screw bolt 7 is hooked.
From the recess 29, an insertion hole 25 into which the screw bolt 7 is inserted obliquely on the side of the main transverse member 1 is formed, and the insertion hole 25 on the side of the main transverse member 1 is slightly smaller than the outer diameter of the screw bolt 7. It has a small diameter.

Regarding the connecting procedure, the joint plate 5 is attached to the sub-transverse member 3 in advance in a factory or on-site. Then, the sub-transverse member 3 is hooked by the joint plate 5 and the screw bolt 7 is screwed into the sub-transverse member 3 from the bolt hole 25 and tightened. The upper bending piece 9 may be screwed before or after the screwing.

In any case, not only the connection strength by the screw bolt 7 itself is obtained, but also the end surface of the sub-transverse member 3 is in pressure contact with the main transverse member 1 and a very strong coupling state is obtained by the pressure contact force. . Moreover, since the force for clamping the joint plate 5 is obtained, the effect of complementing the coupling strength of the joint plate 5 is very large. Particularly, in the case of FIG. 3, the efficacy is synergistically maximized.

In the case of FIG. 3, a drive recess 31 into which the end face of the sub-transverse member 3 is inserted is provided on the side surface of the main transverse member 1, and even if the drive recess 31 is extremely shallow, a screw is formed. Due to the strong tightening force of the bolt 7, the sub-transverse member 3 is pressed and coupled so as to bite into the lower stage of the pushing-in concave portion 31, so that the coupling force of the sub-transverse member 3 to the main transverse member 1 becomes strong. Therefore, tightening of the screw bolt 7 can be strengthened. Further, even if it is strengthened as much as possible, since the joint plate 5 is reinforced, the sub-transverse member 3
There are advantages such as preventing end face cracking. In addition, in the figure, the main horizontal member 1 shows a eaves girder, and the sub-lateral member 3 shows a beam.

[0021]

As described above, according to the present invention, there are the following excellent effects.

1) It is not necessary to provide a notch for connection to the main transverse member to which the load from the subordinate transverse member is applied, and even if it is provided, the number becomes small, and the subtransverse member has an end where bending stress is not concentrated. Since it is cut into parts, it does not lose strength because of that, and it is possible to secure the necessary strength even if the horizontal member that is the main frame is made thin, so it is suitable for saving wooden building materials .

2) Since the joint plates and the like as connecting fittings are not exposed on the lower side and both sides, the appearance of the room becomes good in the interior without the ceiling.

3) The sub-transverse member is not only fixed to the main transversal member in the axial direction and the axial rotation direction, but also the load is surely received, so that stable connection strength can be secured.

Screw bolts are obliquely inserted from the upper surfaces of the vertical and horizontal members to be tightened and connected to the vertical and horizontal members, thereby strengthening the connection between the main horizontal member and the sub-horizontal member and complementing the joint force of the joint plate. Therefore, a very strong binding state is obtained. Moreover, not only the strength loss of the bolt hole is slight, but the strength is further complemented by the screw bolt. In addition, the appearance is ensured even in the interior without the ceiling material because it is not visible.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment in a connecting procedure.

FIG. 2 is a partial vertical cross-sectional view of the building showing a connected state in the embodiment.

FIG. 3 is a partial vertical cross-sectional view of a building showing a connected state in another embodiment.

FIG. 4 is a perspective explanatory view of a conventional example.

[Explanation of symbols]

 1 Main lateral member 3 Secondary lateral member 5 Joint plate 7 Screw bolt 9 Upper bending piece 11 Lower bending piece 17 Long hole 23 Recessed groove 27 Recessing groove 11 Recessing recess

Claims (1)

(57) [Claims] 1. A main transverse member (1) which is a main frame of a building.
In the lateral member connecting device in which the sub-horizontal member (3) laid on it and the two lateral members (1, 3) are bent at right angles, a vertically elongated steel plate is bent between the lateral members (1, 3) in opposite directions. The intermediate straight wall is connected with a joint plate (5) having a long hole (7) in the lower central part, and the connection is performed by a lower end and a joint plate (5) fitted to the end face of the sub-transverse member (3). The concave notch (23) with both sides closed is formed wide, and the lower bending piece (11) of the joint plate (5) is provided at the lower end of the concave notch (23).
Forming a driving groove (27) into which the joint plate (5) is inserted.
Is screwed to the sub-transverse member (3) at the recessed portion (23), and the upper bending piece (9) of the joint plate (5) of the sub-transverse member (3) is attached to the upper surface of the main transverse member (1). Hang it and screw (1
9) After stopping, insert the screw bolt (7) diagonally from the upper surface of the sub-transverse member (3), and pass the tip end thereof through the long hole of the joint plate (5) to the main transverse member (1) side. A lateral member connecting device for a building, characterized by being screwed and tightened and connected.