JPH02232077A - Assembly type goal for ball game - Google Patents

Abstract

PURPOSE:To easily assemble a goal for ball game and to secure the rigidity of the whole goal after the assembly by providing a means to discharge inner pressure, which is generated when the goal is assembled, between a pipe and a joint part. CONSTITUTION:A main body A of the joint is formed by reinforced plastic including longitudinal and lateral glass fiber, which has the high rigidity, and equipped with a support part 6 having a cylindrical part 5, to which a linking member B is fitted, and an insertion part 7 to be integrally formed with this support part 6 and to be inserted to the pipe. A step 6a is formed between the support part 6 and insertion part 7 and a taper is formed in a tip part 7a of the insertion part 7. Accordingly, the insertion part 7 can be easily inserted to the pipe. A core material 8 is embedded from the support part 6 to the insertion part 7 and this core material 8 is formed by resin. In the central part of the core material, an air discharging hole 9 is passed through and formed in axial direction and this hole is used as the means to discharge the inner pressure.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a collapsible ball game goal used for soccer, handball, etc. [Prior art] In order to reduce the weight, synthetic resin pipes are used as goals for ball games such as Satsuka goals, which are assembled by inserting them into joints and joining them with adhesive. be. In order to ensure rigidity after assembly in these prefabricated ball game goals, the clearance between the pipe and the joint is narrowed, and the pipe and joint are roughly fixed with adhesive to prevent them from coming apart easily. We are taking measures to [Problems to be Solved by the Invention] However, if the clearance at the joint between the pipe and the joint is narrowed, the space formed by the pipe and the joint becomes airtight during assembly. At this time, the internal pressure generated inside the pipe not only prevents insertion of the fitting and the pipe, making assembly difficult, but also causes misalignment between the pipe and the fitting while the adhesive dries. There is a problem with this. The present invention was made in view of the above circumstances, and an object of the present invention is to provide an assembly type ball game goal that is easy to assemble and can ensure the rigidity of the entire ball game goal after assembly. [A Thousand Steps to Solve the Problem] In order to solve the above-mentioned problem, the present invention provides an assembly-type ball game goal in which pipes are connected and assembled by a joint part, and ``between the pipe and the joint part, The joint part is characterized by comprising a means for releasing internal pressure generated during assembly.Furthermore, the joint part includes a joint body connected to the pipe,
It can be configured with a connecting member that is joined to this joint body and connected to another pipe.

[Function] In this invention, since a means is provided between the pipe and the joint portion to release the internal pressure generated during assembly, the insertion of the pipe is not hindered by the internal pressure and assembly is easy. Additionally, when fixing using adhesive, for example, the pipe and joint will not shift until the adhesive dries, ensuring the rigidity of the entire ball game goal after assembly. Furthermore, when assembling a triangular or square structure using pipes, for example, two places are connected at the same time, but in the joint according to claim 2 of the present invention, the main body and the connecting member are separate bodies. First, connect the fitting body to the pipe,
Since this joint body and other pipes are connected with a connecting member, they can be easily assembled by connecting each pipe separately. [Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings. Figure 1 is an overall perspective view of the assembled ball game goal. Reference numeral 1 in the figure is an assembled ball game goal, which is composed of a total of eight pipes 28 to 2h, three-pronged joints 3a and 3b, and a two-pronged joint 3C. Pipe made of synthetic resin is used to reduce weight, but because of its light weight, it tends to fall to the A side shown in Figure 1, that is, the front side, due to wind or human power. Therefore, in this embodiment, this drawback is eliminated by a low center of gravity design that changes the material purchase and wall thickness of the pipe depending on the location where it is used. That is, the pipes 2b, 2g, 2h that are grounded are made of aluminum, and the other pipes 28, 2c, 2d, 2
e and 2f are made of reinforced plastic pipes, and the lower pipe is made of a material with high specific gravity to lower the center of gravity. Alternatively, the entire structure may be made of reinforced plastic pipes, and the center of gravity may be lowered by increasing the thickness of the lower pipe. In addition, in order to obtain the rebound characteristics of the ball, the pipe 2a,
2c, 2d. 2e and 2f may be made of highly rigid carbon fiber reinforced plastic pipes. Assembled ball game goal 1 has a total of 8 wooden pipes 2a to 2h.
It is assembled by connecting the three-pronged joint parts 3a, 3b of left-right symmetrical shape and the two-pronged joint part 3C of the same shape. When the pipes 2a to 2h and the joint parts 3a to 3c are adhesively assembled, the pressure inside the pipe increases by inserting the joint parts 3a to 3C into the pipe.
At least one of the joints 3a to 3C is provided with means for releasing the internal pressure between the pipe and the joint that occurs during assembly. The second means for releasing internal pressure is, for example, an air vent hole formed in a pipe or joint, or an air vent passage formed by a groove. Figure 1 shows the case where holes 4 are formed in the pipes 2a to 2h. When the means for releasing internal pressure is constituted by a groove, for example, it is formed in the part of the joint that is inserted into the pipe,
By inserting it into a pipe, it becomes a passage that communicates with the inside of the pipe, allowing pressure to escape. By providing a means to release this internal pressure, the insertion of the pipe is not hindered by the internal pressure, making assembly easy. In addition, when fixing using adhesive, for example, the adhesive can be applied reliably, and there is no misalignment between the pipe and the joint until the adhesive dries. It can ensure rigidity. 2 to 4 show an embodiment in which the joint is provided with a means for releasing internal pressure. FIG. 2 is a sectional view of the joint body of the joint, FIG. 3 is a plan view thereof, and FIG. FIG. 3 is a cross-sectional view of the connecting member of the joint. The joint section is composed of a joint main body A shown in FIGS. 2 and 3, and a connecting member B shown in FIG. 4. 1! The hand body A is made of reinforced plastic containing highly rigid vertical and horizontal glass iaia, and includes a support part 6 having a cylindrical part 5 into which a connecting member B is fitted, and a support part 6 that is formed integrally with this support part 6 and is inserted into a pipe. It has an insertion section 7 that is inserted. A step 6a is formed between the support part 6 and the insertion part 7, and the tip 7a of the insertion part 7 is tapered so that it can be easily inserted into the pipe. Further, a core material 8 is embedded from the support part 6 to the insertion part 7, and this core material 8 is made of resin, and an air vent hole 9 is formed in the center thereof passing through in the axial direction. This is a means to do so. As shown in FIG. 4, the connecting member B has an insert 10 made of reinforced plastic containing vertical and horizontal glass fibers with high rigidity, and a tip 10a of the insert 10 is tapered so that it can be inserted into a pipe. It makes it easier. A core material 11 is embedded in this insert 10, and this core material 11 is made of resin, and an air vent hole 12 is formed in the center thereof passing through in the axial direction, and this serves as a means for releasing internal pressure. .

Therefore, the joint part and the pipe are connected by joining the insertion part 7 of the joint body A to, for example, the horizontal pipe 2g, and when the pressure inside the pipe 2g increases at this time, the core material 8 of the insertion part 7 It can be easily inserted because it comes out through the air vent hole 9 formed. Then, a vertical pipe 2e is attached to the cylindrical part 5 of the joint body A.
The connecting member B is inserted from below the cylindrical portion 5 into the pipe 2e, and the connecting member B connects the pipe 2e and the joint body A. At this time, when the pressure inside the pipe 2e increases, the air vent hole 12 formed in the connecting member B
It can be easily inserted because it can be removed from the In this way, the joint part is composed of the joint main body A and the connecting member B that is slidable in the axial direction of the pipe to be joined to the joint body. For example, when assembling a triangular or square structure with pipes,
The final step is to connect two places at the same time, but first connect the joint body A to the pipe, then connect the other pipe to this joint body A with the connecting member B, and connect each separately to make assembly easier. can. Additionally, a groove communicating with the outside may be provided at the joint between the pipe and the joint as a means of releasing internal pressure. Further, in this embodiment, the connecting member B is inserted and fitted into the inner diameter portion of the pipe, but it may be fitted into the outer diameter portion of the pipe for connection. Furthermore, although a two-pronged joint is shown, it goes without saying that assembly can be facilitated by configuring a three-pronged joint in the same manner. In addition, in this embodiment, the air vent hole is formed in the joint body A and the connecting member B, but if the air vent hole is formed on the pipe side, there is no need to form an air vent hole in the joint body A and the connecting member B. good. [Effects of the Invention] As described above, since this invention is provided with a means for releasing the internal pressure generated during assembly between the pipe and the joint, the insertion of the pipe is not hindered by the internal pressure generated during assembly. Easy to assemble. In addition, when fixing using adhesive, for example, the adhesive adheres well and there is no misalignment between the pipe and the joint until it dries, ensuring the rigidity of the entire ball game goal after assembly. can. Furthermore, when the joint part is composed of a joint body that is connected to a pipe, and a connecting member that is joined to this joint body and connected to another pipe,
For example, when assembling a triangular or square structure using pipes, the final step is to connect 21 points at the same time, but first the joint body is connected to the pipe, and this joint body and other pipes are connected with connecting members, so each They can be easily assembled by connecting them separately.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of the assembled ball game goal, and Figure 2 is 1! 3 is a plan view thereof, and FIG. 4 is a sectional view of the connecting member of the joint. In the figure, reference numeral 1 is an assembled ball game goal, 28 to 2h are pipes, 38 to 3c are joints, A is the joint body, and B is a connecting member. Figure Figure Figure Figure

Claims (1)

[Scope of Claims] 1. A goal for an assembly type ball game in which pipes are connected and assembled by a joint part, and a goal for an assembly type ball game is provided with a means for releasing internal pressure generated during assembly between the pipe and the joint part. goal. 2. An assembly-type ball game goal, wherein the joint portion is composed of a joint body that is connected to a pipe, and a connecting member that is joined to the joint body and connected to another pipe.