JP2006090398A - Structure for assembling pipe member, and goal for ball game - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for assembling pipe members, which structure can easily connect pipe members without a danger of pinching fingers, and further to provide goals for ball games using it. <P>SOLUTION: One pipe member 3a is inserted and connected into the other pipe member 3b via the small-diameter portion 3e of the pipe member 3a. In this case, a U-shaped leaf spring 18 is press fitted inside the pipe member 3a, and an engaging projection 19 and an operating projection 20 are fixed to the leaf spring 18 at an interval in the axial direction of the pipe member 3a. The engaging projection 19 can move in the radial direction of the pipe member because of a hole 3e-1, and the operating projection 20 can move in the radial direction of the pipe member because of holes 3e-2, 3a-1. When the operating projection 20 is pressed, the engaging projection 19 also is brought into the hole synchronizing with the movement of the operating projection 20. When the pipe member 3a is inserted into the pipe member 3b in this state, the engaging projection 19 engages with an engaging hole (not shown) of the pipe member 3b by the snap-engagement, and the connection of the pipe members is completed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pipe member mounting structure between a pipe member and a supporting member that supports the pipe member, or between pipe members, and a ball game goal having the pipe member mounting structure.

For example, as a goal for soccer, a U-shaped pipe member arranged horizontally on the ground and a U-shaped pipe member arranged vertically are connected to each other to form a framework, and a net is attached to this. A pasted configuration is known.
In order to improve portability and storage, an aluminum alloy material is used for the pipe member, and it can be folded by an operation at a connecting portion (attachment portion). The connecting part fixes the joint to the end of the pipe member arranged horizontally, and engages the pin that can be moved in and out by the elastic member provided in the pipe member arranged perpendicular to the hole formed in this joint And a fixed state at the use position is obtained.
As a configuration for projecting a pin from the inside of a pipe member in the radial direction (direction orthogonal to the axial direction) by an elastic force, for example, a configuration described in Japanese Patent Application Laid-Open No. 8-159120 is known.

In the case of folding, the pin and the hole are disengaged while the pipe member is pushed down by pressing the pin with a finger or the like from the outside. Usually, the top part of the pin is formed in a hemispherical shape or a curved shape. When the pin is pushed to some extent, the engagement is released by the rotational force of the pipe member.
In order to ensure stability during transportation in the folded state, there is also known one provided with a hole for engaging the pin even in the folded position.
In addition, in order to further facilitate portability and further improve storage performance, it is also known that each pipe member can be disassembled. In this case, the pipe members are connected to each other by inserting a pin, which is provided on the pipe member and freely protruding and retracting with an elastic member, into the other pipe with the finger pressed, and the pin snaps into the engagement hole of the other pipe. This is done by engaging.

In JP-A-10-183990, convex portions are provided at both end portions of a U-shaped leaf spring press-fitted into a pipe member so that the convex portions can be protruded and retracted from holes opposed to each other in the radial direction of the pipe member. Is inclined downward in the insertion direction of the other pipe member, and the convex portion is immersed by the pressing force when the other pipe member is inserted, and snaps when it reaches the engagement hole of the other pipe member. An engaging pipe connector is disclosed.
The disengagement is performed by turning one of the pipe members in the circumferential direction so that the inclined surface of the convex portion is pressed by the engagement hole and is immersed.

JP-A-8-159120 JP-A-10-183990

The front width of the soccer goal is 2 m or more. When the pin is pushed in with a finger or the like to disengage and fold, it is necessary to attach one person to each connecting portion and release the engagement at the same time. This is because the pipe member arranged vertically cannot be rotated even if the engagement is to be released only at one of the connecting portions.
For this reason, at least two people need to perform the folding work and the assembling work, and a structure that can be easily folded and assembled by one person has been desired.
The configuration described in Patent Document 2 has an advantage that the engagement is automatically performed only by the insertion operation of the pipe member, but one of the pipe members is rotated in the disengagement (separation). For example, in a soccer goal, it is impossible to rotate the U-shaped pipe member.
When the pipe member is a disassembly type, there are cases where it can be rotated, but there is a restriction that the disassembly work must be performed before the pipe member is rotated.

Also, in the connection between pipe members, in the method of pushing the pin with a finger, the pipe member must be quickly inserted while maintaining the pushed state of the pin, so the finger or the nail is sandwiched in the insertion gap between the pipe members When the presser is released and the pin returns unexpectedly, there is a risk that a finger may be pinched between the pin and the pipe member.
In the step method in which the outer diameters of both pipe members coincide when connected, a pin is provided in the small-diameter portion, so that there is a high risk that a finger is caught between the pipe members.

The present invention relates to a pipe member mounting structure capable of engaging / disengaging a pipe member with respect to another member even when there are a plurality of mounting portions individually and without requiring a pipe member rotating operation. The purpose is to provide the goal for the ball game.
Another object of the present invention is to provide a pipe member mounting structure and a ball game goal using the pipe member mounting structure that can be easily performed without risk of pinching fingers when connecting pipe members to each other.

  According to the first aspect of the present invention, the pipe member is provided with an engaging projection that can be projected and retracted in a direction perpendicular to the axial direction of the pipe member by an elastic member provided inside the pipe member, and is formed on the other member. In the pipe member mounting structure in which the engagement convex portion is engaged with the engagement concave portion to fix or connect the position of the pipe member to the other member, the pipe member is provided with the engagement convex portion in the axial direction. An operation projection is provided at an interval, and the operation projection can be projected and retracted in a direction perpendicular to the axial direction of the pipe member by an elastic member provided inside the pipe member. The pipe member mounting structure is characterized in that the engaging convex portion protrudes and protrudes in synchronization with the protruding and protruding operation of the portion.

  According to a second aspect of the present invention, in the pipe member mounting structure according to the first aspect, the operation convex portion is provided integrally with the outer surface of the pipe member, and the operation convex portion is projected and retracted by turning in a circumferential direction. The pipe member mounting structure includes an operation member capable of maintaining a state in which the portion is immersed.

  The invention according to claim 3 is the pipe member mounting structure according to claim 1, wherein the other member is a pipe member, and the pipe member is inserted into the other member in a state where the operation convex portion is pressed. The pipe member mounting structure is characterized in that the engaging convex portion is engaged with and connected to the engaging concave portion.

  According to a fourth aspect of the present invention, in the pipe member mounting structure according to the third aspect, the pipe member having the operation convex portion has a small-diameter portion inserted into the other member, and the outer shape of the other member is substantially the same. A pipe member characterized by having a stepped shape comprising a large-diameter portion, wherein the engaging convex portion is provided on the small-diameter portion, and the operating convex portion is provided on the large-diameter portion. Structure.

  According to a fifth aspect of the present invention, in the pipe member mounting structure according to any one of the first to fourth aspects, the elastic member is formed in a U-shape that can be press-fitted into the pipe member, and the engagement The pipe member mounting structure is characterized in that the convex portion and the convex portion for operation are integrally fixed to the elastic member.

  The invention described in claim 6 is a ball game goal constituted by connecting pipe members, and has the pipe member mounting structure according to any one of claims 1 to 5. A goal for ball games.

According to the first aspect of the present invention, the engaging convex portion that engages with the engaging concave portion of the other member can be caused to appear and disappear indirectly through the operating convex portion away from the engaging convex portion, without directly operating the engaging convex portion. The engagement / disengagement operation can be easily performed.
According to the second aspect of the present invention, it is possible to perform a disengagement operation by one person even in a soccer goal or the like, so that workability can be facilitated and work efficiency can be increased.

According to the invention described in claim 3, in the connection between the pipe members, it is possible to cause the finger or The risk of pinching nails can be eliminated.
According to invention of Claim 4, the danger can be eliminated in the connection structure with high danger of pinching a finger | toe and a nail | claw.
According to the fifth aspect of the present invention, it is possible to easily configure the protruding and protruding configuration by the elastic force of the engaging convex portion and the operating convex portion in the pipe member.
According to the sixth aspect of the present invention, the effect of any one of the first to fifth aspects can be obtained in the ball game goal.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a use state of a soccer goal 1 as a ball game goal in the present embodiment. A soccer goal 1 includes a U-shaped horizontal pipe member 2 that is horizontally disposed on the ground, and a vertical pipe member that is connected to an end of the horizontal pipe member 2 and is vertically disposed when used. 3 and a net 4 or the like stretched between them.
The horizontal pipe member 2 and the vertical pipe member 3 are formed of a pipe member having a circular cross section made of an aluminum alloy from the viewpoint of weight reduction.

The end portion of the vertical pipe member 3 is pivotally supported by a joint 5 as another member fixed to the end portion of the horizontal pipe member 2, and can be folded.
The horizontal pipe member 2 includes L-shaped main body portions 2a and 2a and a straight portion 2b, and can be disassembled into three parts. Similarly, the vertical pipe member 3 includes L-shaped main body portions 3a and 3a and a straight portion 3b, and can be disassembled into three parts. In FIG. 1, reference numerals 2c and 3c denote connecting portions.

As shown in FIG. 2, the joint 5 is fixed between two side plates 7 fixed to the end 2 d of the horizontal pipe member 2 with fixing members 6 such as screws or caulking pins, and the upper portions of the side plates 7, 7. A stopper 8 for restricting the rotation of the vertical pipe member 3 to the use position is provided. The stopper 8 has a curved shape along the outer surface of the vertical pipe member 3.
An end 3 d of the vertical pipe member 3 is pivotally supported by a shaft 9 fixed between the side plates 7 so as to be rotatable in the direction of the arrow 10. The shaft 9 can be composed of, for example, a bolt and a nut.
Each side plate 7 has a positioning hole 11 as an engagement recess for fixing the vertical pipe member 3 at the use position and a positioning hole 12 as an engagement recess for fixing at the folding position. Are formed at intervals on the rotation direction, that is, at intervals on the rotation trajectory.

  An operation member 13 is provided on the outer surface of the end 3d of the vertical pipe member 3 to project and retract an operation projection and an engagement projection, which will be described later. In addition, the vertical pipe member 3 is shown in the use position (vertical position). When the operating member 13 is rotated in the circumferential direction to remove the engaging convex portion from the positioning hole 11 and tilted, it can be folded as shown in FIGS.

Next, the configuration of the operation member 13, the operation convex portion, and the engagement convex portion will be described in detail.
As shown in FIG. 5, a narrow leaf spring 14 as a U-shaped elastic member is press-fitted inside the end 3 d of the vertical pipe member 3. Here, press-fitting means that the leaf spring 14 can be positioned at an arbitrary position by the pressure contact between the opening force of the leaf spring 14 and the inner surface of the end 3d.
At both ends of the leaf spring 14, an engagement convex portion 15 having a hemispherical shape or a curved shape at the top portion, and an operation convex portion 16 are paired one by one in the axial direction of the end portion 3d of the vertical pipe member 3, such as caulking. Are fixed together.
With this configuration, when the operation convex portion 16 on one side is pressed, the engagement convex portion 15 located on the same side is retracted synchronously (linked), that is, retracted into the vertical pipe member 3. The operation member 13 is integrally provided on the outer surface of the end 3 a of the vertical pipe member 3 so as to cover the operation convex portions 16 and 16.

At the end portion 3d of the vertical pipe member 3, a hole 3d-1 as an engagement concave portion with which the engagement convex portion 15 engages and a hole 3d-2 with which the operation convex portion 16 engages are opposed to each other in the radial direction. Are formed in pairs.
The cylindrical operating member 13 is formed with a pair of bulging portions 13a that allow the operating convex portions 16 and 16 to protrude, at positions that oppose each other in the radial direction. The inner diameter of the operation member 13 is set slightly larger than the outer diameter of the vertical pipe member 3.

As shown in FIG. 6, the bulging portion 13 a has a space portion 13 b that allows the maximum protrusion outward in the radial direction of the operation convex portion 16 and gradually decreases in the radial direction in the circumferential direction. ing.
6 and 7 show a state in which the operation convex portion 16 protrudes the maximum amount radially outward, that is, the engagement convex portions 15 and 15 are engaged with the positioning holes 11 and 11 of the joint 5, and the vertical pipes. The state where the member 3 is fixed at the use position is shown.
When the vertical pipe member 3 is folded, the operation member 13 is rotated in the L direction shown in FIG.
As shown in FIGS. 8 and 9, the operation convex portions 16 and 16 are gradually pressed by the bulging portion 13a, and are pushed in a maximum amount at a position past the bulging portion 13a as shown in FIGS.

As shown in FIG. 11, the engaging projection 15 is completely removed from the positioning hole 11, and the vertical pipe member 3 is in a rotatable state. In this case, even if the operation member 13 is released, the operation member 13 does not rotate, and the operation convex portion 16 is maintained in the pushed-in state.
That is, when the engagement is released at one of the connecting portions, the state is maintained. Therefore, when one worker releases the engagement at one connecting portion and then moves to the other connecting portion to release the engagement at the connecting portion, the vertical pipe member 3 can rotate.
The engaging protrusion 15 may not be completely removed from the positioning hole 11. As described above, the top of the engaging convex portion 15 is formed in a hemispherical shape or a curved shape. Therefore, if the pressing force when the vertical pipe member 3 is tilted is retracted to a position where it acts on the inclined surface, it is automatically Is disengaged.

When the operation member 13 is turned in the opposite direction with the vertical pipe member 3 folded as shown in FIG. 3 (or in the same direction), the operation convex portion 16 gradually protrudes at the bulging portion 13a and synchronizes with this. Then, the engaging convex portion 15 also protrudes, and finally the engaging convex portion 15 engages with the positioning hole 12 and is fixed at the folded position.
The positioning hole 12 is not always necessary, but if it is fixed at the folding position, the horizontal pipe member 2 and the vertical pipe member 3 are not opened during carrying, so that the operation becomes easy.
Further, in the present embodiment, the engagement convex portion 15 and the operation convex portion 16 are provided as a pair at positions opposed to the radial direction of the vertical pipe member 3, but only one of them may be provided.
In the present embodiment, the engagement and disengagement (separation) with respect to the joint 5 can be arbitrarily performed only by turning the operation member 13 provided on the outer surface of the end 3d of the vertical pipe member 3, as described in Patent Document 2 Compared with the method of rotating the pipe member, the operation can be performed very easily, and there is no restriction such as disassembling the pipe member in advance.

A second embodiment will be described with reference to FIGS. In addition, the same part as the said embodiment is shown with the same code | symbol, and unless it was especially required, the description on the structure and function which were already demonstrated is abbreviate | omitted, and only the principal part is demonstrated.
As described above, each of the horizontal pipe member 2 and the vertical pipe member 3 of the soccer goal 1 can be disassembled into three parts. This embodiment is characterized by a connection structure between pipe members, and can be applied to the connection portions 2 c and 3 c in the horizontal pipe member 2 and the vertical pipe member 3. Since both have the same configuration, the structure of the connecting portion 3c in the vertical pipe member 3 will be described as a representative.

As shown in FIG. 12, an engagement hole 3b-1 as an engagement recess is formed at the connection side end of the straight portion 3b of the vertical pipe member 3 as another member.
A small-diameter portion 3e having an outer diameter that can be inserted into the straight portion 3b is formed at the connection side end portion of the L-shaped main body portion 3a of the vertical pipe member 3 as a pipe member. The small diameter portion 3e can be formed by press-fitting a small diameter pipe, for example.
The portion excluding the small diameter portion 3e of the main body portion 3a is a large diameter portion having substantially the same diameter as the straight portion 3b, and has a step shape as a whole. The step shape may be formed by a single pipe member.

  A narrow leaf spring 18 as an elastic member formed in a U shape is press-fitted inside the small diameter portion 3e. Engagement projections 19 and operation projections 20 are fixed on one side of the leaf spring 18 with an interval in the axial direction of the main body 3a. Correspondingly, the engagement projections are formed on the small-diameter portion 3e. A hole 3e-1 as an engagement recess for 19 and an engagement hole 3e-2 for the operation protrusion 20 are formed. The hole 3e-2 is formed on the main body 3a side away from the stepped portion, and a hole 3a-1 is formed at a position corresponding to the hole 3e-2 of the main body 3a. As shown in FIG. 13, the operation convex portion 20 is engaged with the two holes 3 e-2 and 3 a-1 so as to be able to appear and retract.

As shown in FIG. 14, when the operation convex portion 20 is pressed with a finger, the engagement convex portion 19 is also immersed in synchronization. In this state, for example, when the straight portion 3b is inserted into the relatively small diameter portion 3e, the engaging convex portion 19 in which only the hemispherical or curved top portion protrudes is further depressed by the inclined surface being pressed by the straight portion 3b, Insertion proceeds.
When the engaging convex portion 19 reaches the engaging hole 3b-1 of the straight portion 3b, as shown in FIG. 15, the engaging convex portion 19 protrudes by the elastic force of the leaf spring 18, and is engaged with the engaging hole 3b-1. The connection is completed.
Since the operation is performed by pressing the operating convex portion 20 separated in the axial direction without directly pressing the engaging convex portion 19 that engages with the engaging hole 3b-1, between the straight portion 3b and the small diameter portion 3e. There is no worry about pinching your fingers or nails. Further, in the present embodiment, since the operation convex portion 20 is provided in the main body portion (large diameter portion) 3a that is away from the connection position 3c, there is a risk that a finger is caught between the straight portion 3b and the main body portion 3a. There is no sex.
The pipe member in the present embodiment does not need to have a circular cross section, and can be similarly implemented with a square pipe.

  In each of the above embodiments, an example of application to the joint structure of the pipe member with respect to the joint in the soccer goal 1 and the connection structure between the pipe members has been shown. However, the present invention is not limited to this, and other fields using the pipe member In the same way, it can also be carried out.

It is a perspective view of the use condition of the goal for soccer in the 1st embodiment of the present invention. It is a perspective view which shows the connection part of a pipe member. It is a perspective view of the state where the goal for soccer was folded. It is a perspective view which shows the connection part of the pipe member of the folded state. It is a perspective view which shows the arrangement | positioning relationship and engaging member of an engaging convex part and the convex part for operation, and an engaging recessed part. It is a horizontal sectional view in the position of an operation member. It is a longitudinal cross-sectional view in the attaching part with a joint. It is a horizontal sectional view in the position of the operation member when turning the operation member. It is a longitudinal cross-sectional view in an attaching part with a joint when an operation member is rotated. It is a horizontal sectional view in the position of the operation member when the operation member has been turned. It is a longitudinal cross-sectional view in an attaching part with a joint when the operation member has been turned. It is a perspective view which shows the state before the connection of the connection part in 2nd Embodiment. It is a longitudinal cross-sectional view when the insertion for a connection is started. It is a longitudinal cross-sectional view of the state where the engaging convex portion for operation is pushed. It is a longitudinal cross-sectional view of the state of completion of connection.

Explanation of symbols

2 Horizontal pipe member as a pipe member 3 Vertical pipe member as a pipe member 3a Main body portion as a large diameter portion 3b Straight portion as another member 3b-1 Engagement holes 3d-1, 3e-1 as engagement recesses 3e small diameter part 5 joint as another member 13 operation member 14, 18 leaf spring 15, 19 engaging convex part 16, 20 convex part for operation

Claims (6)

The pipe member is provided with an engaging convex portion that can be projected and retracted in a direction perpendicular to the axial direction of the pipe member by an elastic member provided inside the pipe member, and the engaging concave portion formed on the other member is engaged with the above-mentioned engagement. In the pipe member mounting structure that engages a convex portion to fix or connect the position of the pipe member to the other member,
The pipe member is provided with an operation convex portion spaced apart from the engagement convex portion in the axial direction, and the operation convex portion is axially formed by the elastic member provided in the pipe member. The pipe member mounting structure is characterized in that the engaging convex portion can be projected and retracted in synchronization with the projecting and retracting operation of the operation convex portion. In the pipe member mounting structure according to claim 1,
It is provided integrally with the outer surface of the pipe member, and has an operation member capable of projecting and retracting the operation convex portion by rotating in the circumferential direction and maintaining the operation convex portion. Pipe member mounting structure. In the pipe member mounting structure according to claim 1,
The other member is a pipe member, and the pipe member is inserted into the other member in a state where the operation convex portion is pressed, and the engagement convex portion is engaged with and connected to the engagement concave portion. The pipe member mounting structure. In the pipe member mounting structure according to claim 3,
The pipe member having the operation convex portion has a stepped shape including a small diameter portion inserted into the other member and a large diameter portion having substantially the same outer shape as the other member, and the engagement convex portion is the above A pipe member mounting structure, wherein the pipe member mounting structure is provided in a small diameter portion, and the operation convex portion is provided in the large diameter portion. In the pipe member mounting structure according to any one of claims 1 to 4,
The pipe member mounting structure, wherein the elastic member is formed in a U-shape that can be press-fitted into the pipe member, and the engaging convex portion and the operating convex portion are integrally fixed to the elastic member. . In the goal for ball games constructed by connecting pipe members,
6. A ball goal, comprising the pipe member mounting structure according to claim 1.

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