JPH0225845Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a connecting device for connecting a plurality of beams at the ends of the beams.

<Prior art> Conventionally, when constructing a polyhedral architectural structure frame etc. using multiple beams, when connecting the multiple beams at the ends of the beams, the connection is as shown in Fig. 6. Thus, a fixing structure was adopted in which a plurality of beams 31 are each fastened to a joint piece 30 formed by press working or the like using bolts 32 and nuts.

<Problem to be solved by the invention> However, in the above conventional technology, the connecting piece 3
0, when bolting multiple beams, the beams must be supported in a predetermined position until the bolting is complete. Furthermore, the angles of multiple beams with respect to the connecting piece are naturally fixed. Therefore, when constructing a single structure by sequentially assembling multiple beams, if a certain beam is fixed to the connecting piece, Then, the beam to be fixed to the joint piece cannot be bolted to the previously fixed beam at any angle other than a predetermined angle. These factors have been a cause of poor construction efficiency.

Based on such circumstances, the object of this invention is to provide a beam connecting device capable of connecting a plurality of beams at the ends of the beams without reducing the efficiency of assembly work.

<Means for Solving the Problems> The present invention was made to solve the above problems, and is a beam connecting device for connecting multiple beams at the ends of the beams, and includes the following: It consists of a connecting ring and a plurality of connecting pieces.

The connecting ring is a polygonal ring having sides corresponding to the number of the plurality of beams.

The connecting piece is interposed between each side of the connecting ring and the end of each beam to connect the end of each beam to each side of the connecting ring, and includes a hook-shaped engagement part; It has a stopper piece and a beam connecting part. The hook-like engaging portion is a portion that engages with one side of the connecting ring so as to be rotatable about that side. The stopper piece is
The connecting ring is provided close to the hook-like engaging part, and allows one side of the connecting ring to be installed into the hook-like engaging part due to its own elastic deformation, but after being installed, it returns to its original position. The connecting ring is an elastically deformable portion that prevents one side of the connecting ring from separating from the hook-like engagement portion, and the beam connecting portion is a portion that connects the end portions of the respective beams.

<Operation> According to such a connecting device, multiple beams can
The ends of the beams are rotatably connected around the sides of the connecting ring.

<Example> Hereinafter, an example of the present invention will be described in detail based on the drawings.

In this embodiment, an icosahedral architectural structure frame (for example, a bungalow, a study room, etc.) will be described as an example.

FIG. 4 is a plan view of the beam connecting device, in which the connecting ring 9 is located at the center. This connecting ring 9
is a regular pentagonal ring made of metal, and five beams 7 are radially connected to this connecting ring 9 via five connecting pieces 1.

FIG. 2 is a perspective view showing one of the connecting pieces 1 taken out. The main connecting piece 1 is formed of a metal plate, and at one end of the connecting piece 1 there is a hook-shaped engagement part 3a formed in a curved manner to engage the main connecting piece 1 with the connecting ring 9. (Note that the side of the connecting piece 1 where the hook-shaped engaging portion 3a is provided is referred to as the front, and the other side is referred to as the rear). Further, immediately behind the hook-like engaging portion 3a,
A pair of stopper pieces 3b are provided which are formed by symmetrically cutting the left and right parts of the metal plate and bending them at an obtuse angle so as to protrude diagonally forward. In the innermost part of the cut where each stopper piece 3b is formed, a small hole 6 is provided to disperse stress and prevent cracks.

A beam connecting portion 2 formed of a flat plate-like portion is provided at the rear portion of the connecting piece 1, and a bolt hole 2a for passing a beam connecting bolt 4 therethrough is provided. Further, a pair of projecting pieces 2b are provided slightly behind the two left and right stopper pieces 3b, which are formed by cutting a main metal plate and bending it vertically. Further, as in the case of the stopper piece 3b described above, similar small holes 5 are provided at the innermost part of the cut where the projecting piece 2b is formed. The projecting piece 2b is attached to the beam connecting portion 2 together with the bolt 2a.
constitutes part of.

Then, as will be explained below, the building structure frame is assembled by connecting each connecting piece 1 to the connecting ring 9 and connecting each connecting piece 1 to the beam 7, respectively.

First, the mechanism by which the connecting piece 1 is connected to the connecting ring 9 will be explained based on FIG. 3. FIG. 3 is a side view chronologically showing the connection procedure from A to D.

First, as shown in A, a predetermined side 9 of the connecting ring 9 is
Position the connecting piece 1 slightly above a. At this time, the direction of the side 9a of the connecting ring 9 and the front-rear direction of the connecting piece 1 are approximately at right angles, and the hook-shaped engaging portion 3
The side 9 of the connecting ring 9 is slightly behind the tip 3c of the
position a.

Then, as shown in B, the hook-shaped engaging portion 3a
If the connecting piece 1 is guided so that it engages with the side 9a of the connecting ring 9, the stopper piece 3b will come into contact with the side 9a of the connecting ring 9, and by applying further force, the stopper piece 3b will become elastic as shown in C. Due to the deformation, the side 9a is allowed to enter into the hook-like engaging portion 3a.

As shown in d, after installation, the stopper piece 3b returns to its original position due to its own elasticity.
This prevents the side 9a of the connecting ring 9 from separating from the hook-like engaging portion 3a. Therefore, although it can be easily attached with one touch, there is no fear that it will come off. Further, in such a connection, the connecting piece 1 is in a state where it can rotate about the side 9a of the connecting piece 9 as an axis of rotation.

Next, the connection between the main connecting piece 1 and the beam 7 will be explained based on FIG. 1.

The end of the beam 7 to be connected to the connecting piece 1 is provided with a beam connecting part 2 (more specifically, a projecting piece 2b of the connecting piece 1).
A slit 8 in the front-rear direction is provided at the center in the thickness direction to insert the rear portion (more rearward portion), and a hole 2a' corresponding to the hole 2a of the connecting piece 1 is provided. Then, the beam 7 is inserted into the beam connecting portion 2 of the connecting piece 1 through its slit 8 until the front end surface of the beam 7 comes into contact with the protruding piece 2b, and then
Align a and 2a', bolt 4 and nut 10
The connecting piece 1 and the beam 7 are fastened together.

Note that the order in which the connecting piece 1 and the connecting ring 9 are connected and the connecting piece 1 and the beam 7 are connected may be determined first.

Figure 5 shows a plan view of one vertex C of the regular icosahedral architectural structure frame created in the above manner.

Then, if we perform the above concatenation one after another, we get the correct result.
It is possible to assemble an icosahedron architectural structure frame,
FIG. 6 is a partially cutaway perspective view of the icosahedral building thus obtained.

During this assembly, each connecting piece 1 is in a state where it can rotate about each side of the connecting ring 9 as an axis. Therefore, in the intermediate process until the assembly is completed, it is not necessary to connect the beam 7 to the connecting ring 9 at the desired final angle; instead, it is not necessary to connect the beam 7 to the connecting ring 9 at an arbitrary angle. You can adjust the angle at any stage. Further, unlike the case of the complete fixing method, there is no problem in which fixing one beam 7 makes fixing (connecting) other beams 7 difficult due to distortion during assembly.

In this embodiment, a regular icosahedral architectural structure frame is taken as an example, but the beam connecting device according to the present invention is
It can be applied to assembling not only a face piece but also an appropriate shape of an architectural structure frame such as a rectangular parallelepiped, a regular octahedron, etc. At this time, the shape of the connecting ring 9 is selected to be triangular, quadrangular, etc., suitable for the shape of the architectural structure frame.

Moreover, although metal was used as the material for the connecting piece 1 and the connecting ring 9, other materials can be used as long as they satisfy conditions such as strength as a building structure frame.

Further, the connection between the connecting piece 1 and the beam 7 is not limited to bolts and nuts, but any suitable fixing means such as rivets may be used. Further, two or more parts may be provided to be connected by bolts, nuts, etc., and in that case, the protruding piece 2b may not necessarily be provided. Further, instead of providing the slit 8 at the end of the beam 7, one side of the beam may be aligned with the rear part of the connecting piece 1, and both members may be fixed with bolts, nuts, or the like.

Furthermore, it goes without saying that the present invention can be implemented with various modifications, such as the shape of the connecting piece 1, based on the knowledge of those skilled in the art.

<Effects of the invention> According to the beam connecting device according to the present invention, multiple beams can be easily connected with one touch via the connecting ring and the connecting piece. Therefore, the time required to support the beam is negligible. Furthermore, once they are connected, the stopper piece can reliably prevent them from coming apart.

Furthermore, since each connecting piece can rotate around each side of the connecting ring at its hook-like engagement portion, the beam and connecting ring can be rotated during assembly of the building structure frame. The angle can be left in a free state, and the angle can be adjusted at the final assembly stage. In addition, compared to the conventional completely fixed type of connection, distortion during connection is absorbed more effectively, and if one beam becomes fixed, it may become impossible to connect other beams. do not have.

As described above, according to the beam connecting device according to the present invention, the architectural structure frame can be assembled efficiently.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a portion of an embodiment of the present invention excluding a connecting ring. FIG. 2 is a perspective view of the connecting piece. FIG. 3 is a side view showing an example of a procedure for connecting a connecting piece to a connecting ring over time. FIG. 4 is a plan view of one vertex of a regular icosahedral architectural structure frame formed by connecting a connecting ring, a connecting piece, and a beam. FIG. 5 is a partially cutaway perspective view of the icosahedral building. FIG. 6 is a bottom view showing a conventional beam connection structure. 1... Connecting piece, 2a, 2a'... Hole, 2b... Protruding piece, 3a... Hook-shaped engaging portion, 3b... Stopper piece, 7... Beam, 9... Connecting ring, 9a... Connection One side of the ring.

Claims (1)

[Claims for Utility Model Registration] A beam connecting device for connecting multiple beams at the ends of the beams in order to create a building structure frame, the number of which corresponds to the number of beams. a connecting ring which is a polygonal ring having sides, and a plurality of connecting rings interposed between each side of the connecting ring and the end of each of the beams to connect the end of each beam to each side of the connecting ring. a hook-like engaging portion for engaging one side of the connecting ring so as to be rotatable about that side, and a hook-like engaging portion adjacent to the hook-like engaging portion; The elastic deformation of the connecting ring allows one side of the connecting ring to be installed into the hook-like engaging portion, but after installation, the connecting ring returns to its original position and one side of the connecting ring becomes attached to the hook. A beam connecting device comprising: an elastically deformable stopper piece that prevents the beams from coming off from the shaped engagement portion; and a beam connecting portion to which end portions of the beams are connected.