JP3626490B1 - Fall prevention tool for competition goal posts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a fall of a competition goal post (50) which can surely prevent a fall of the competition goal post (50) forward without any restrictions on the installation position of the competition goal post (50). I will provide a.
SOLUTION: A plurality of weight blocks (4) are stacked on a fall prevention device main body (2) for hooking a hook portion (6) to a frame (51) arranged along a ground contact surface of a goal post (50). And place it. A moment acting in the direction opposite to the overturn direction of the goal post (50) with respect to the frame (51) is applied by the load of the weight block (4) to prevent the overturn. Since a plurality of weight blocks (4) are used, the weight block (4) can be carried and a fall prevention tool can be installed at a required location without requiring a large force.
[Selection] Figure 1

Description

  The present invention relates to a fall prevention tool for a competition goal post that stands and supports in a state in which a competition goal post used for sports competitions such as soccer and baskets is installed.

  The goal post for competition is a frame that is a three-dimensionally assembled frame such as a steel frame or metal pipe. For soccer, handball, etc., the front of the frame is left behind and the whole is covered with a net. It is configured to support a bag-like net.

  Since all the goal posts require a certain strength for the frame, the total weight is several hundred kilograms or 1 ton or more. The accident of falling down and becoming an underlay was constant.

  The goalpost can be prevented from falling backward or sideways by overhanging the frame that forms the rotation stopper in the same direction, but the forward fall on the competition area side is a hindrance to the competition. The rotating stopper could not be projected forward, and there was no effective preventive measure against the forward fall.

  Therefore, conventionally, a method is known in which a frame disposed rearward on the bottom surface side of the frame body is fixed to the ground with pegs, anchors, or the like, and prevents falling forward (Patent Document 1).

JP 2003-14495 A (page 3 to page 4, FIGS. 1 and 2)

  FIG. 7 shows a fall prevention device 100 of this conventional competition goal post, which is composed of a cylindrical anchor 101 embedded in the ground and a fixing device 102 that can be fitted in the cylinder of the anchor 101. A hook portion 103 is integrally connected to the upper end of the fixture 102.

  As shown in FIG. 8, the fall prevention device 100 includes a plurality of sets for installing the competition goal posts 110, and is a place where the competition goal posts 110 are planned to be installed on the bottom side of the competition goal posts 110. A plurality of anchors 101 are preliminarily embedded in an inclined state around the rear frame 111 and the side frame 112 constituting the frame.

  When this goal post 110 is used in a competition, the goal post 110 is erected at the installation position in which the anchor 101 is embedded, and the hook portion 103 is hooked on the rear frame 111 or the side frame 112 to form a pair. A fixing tool 102 is inserted into the anchor 101.

  Since the anchor 101 is inclined and embedded in the ground, the inserted fixture 102 is difficult to be removed from the anchor 101, and even if there is a risk that the competition goal post 110 may tilt forward and fall down, Since the frame 111 and the side frame 112 are supported, the overturn can be prevented.

  Further, since the fixture 102 can be easily inserted into and removed from the anchor 101, the rear frame 111 can be easily restrained with respect to the anchor 101, and when the use of the competition goal post 110 is finished and moved to another place. In addition, the fixture 102 can be easily pulled out from the anchor 101 and the constraint with the anchor 101 can be released.

  In this conventional competition goal post overturn prevention device 100, when the competition goal post 110 is moved, the fixture 102 can be easily pulled out from the anchor 101 buried in the ground. However, due to this, even when the rear frame 111 is supported by the hook portion 103, the fixture 102 is easily pulled out, and a large rotational moment is generated on the competition goal post 110 due to a child hanging or the like. When this occurs, the fixture 102 is pulled out from the anchor 101, or the anchor 101 itself is deformed and pulled out from the ground, so that it does not completely prevent the competition goal post 110 from overturning. It was a thing.

  In addition, since it is necessary to embed a plurality of anchors 101 at a position where the competition goal post 110 is installed in advance, the installation position is limited, and when not in use, a hole by the anchor 101 is opened in the stadium. Since it is dangerous, it is also necessary to cover the opening with a cap or the like.

  As another method, every time the competition goal post 110 is installed, a method of driving and fixing the pegs along the rear frame 111 is also implemented, but each time the competition goal post 110 is used, a plurality of pegs are attached. It took a lot of effort to drive and pull out the pegs for movement after the end. In particular, pulling out a peg that has been driven requires a large force that children cannot pull out, and at the elementary and junior high schools, the peg driving was omitted from the trouble, causing an accident due to a fall.

  The present invention has been made in consideration of such conventional problems, and there is no restriction on the installation position of the competition goal post, and the competition goal post can be reliably prevented from falling forward. It aims at providing the fall prevention tool of a goal post.

  It is another object of the present invention to provide a fall prevention tool for a competition goal post that restrains the rear frame and prevents the competition goal post from falling forward without requiring a large force.

In order to achieve the above-described object, the fall prevention device for a competition goal post according to claim 1 has a guide frame portion standing integrally on the upper surface of a support plate portion arranged along the ground contact surface of the competition goal post. Rutotomoni, a pair a pair of end plates provided continuously bifurcated at one side of the supporting plate portion, a pair of the end plates, orthogonal to each other in a horizontal plane parallel to the ground plane, opening towards the ground plane The hook part is integrally formed with a fall prevention tool main body, and a plurality of weight blocks that are positioned and supported in the horizontal direction by the guide frame part and placed on the support plate part,
A pair of hooks on the fall prevention device main body with weight blocks placed on the rear frame and the side frame that intersect at the rear corner along the ground contact surface of the competition goal post in the frame constituting the competition goal post Each part is hooked.

  The hook part of the fall prevention tool main body, in which a plurality of weight blocks are stacked on the support plate part, is hooked to the frame arranged along the grounding surface of the frame, so that part of the weight block load is hooked. Acts in the direction of the ground plane with respect to the frame via the part. As a result, even if a moment in the direction of falling forward is inadvertently applied to the competition goal post, the load of the weight block works in the reverse direction, preventing the falling.

  The support plate portion is disposed horizontally along the ground plane, and the plurality of weight blocks stacked on the support plate portion are positioned and supported in the horizontal direction by the guide frame portion. Does not fall off, and acts on the support plate in the vertical direction without the load of the plurality of weight blocks being dispersed.

  Since the pair of hooks are hooked near the rear of the rear frame and the side frame, the reverse direction due to the load of the weight block against the moment acting in the direction of falling forward around the front end of the competition goal post Large moments can be generated. In addition, since it is hooked at two positions of the rear frame and the side frame, it is difficult to come off the frame.

In the fall prevention tool for a competition goal post according to claim 2 , the engaging convex portion is formed on the flat surface, and the engaging concave portion engaging with the engaging convex portion on the bottom surface is formed in the same shape in each of the plurality of weight blocks. Each of the plurality of weight blocks is stacked on the support plate portion by engaging the engaging convex portions and the engaging concave portions of the opposing surfaces.

  Since the stacked upper and lower weight blocks are engaged with each other, even if a plurality of weight blocks are stacked on the support plate portion, they are not inclined and dropped.

According to a third aspect of the present invention, the anti-tip device for preventing a fall of a goal post has a hole formed in a projection area of the support plate portion obtained by projecting the weight block to be placed on the support plate portion. To do.

  Since the punch hole is formed in the projection area of the weight block, the weight block is supported on the support plate portion without penetrating the punch hole.

  According to the invention of claim 1, since the moment in the reverse direction to the forward direction of the competition goal post is obtained from the load of the plurality of weight blocks, the lightweight weight blocks can be dispersedly carried, Even if the installation position of the goal post is moved, the fall prevention device can be easily installed at the installation position, and the installation of the fall prevention device can be easily released after use.

  Accordingly, in school education, many children can carry a plurality of weight blocks and the fall prevention device main body in a distributed manner, and can be installed or released, so that the fall prevention measures for the competition goal posts can be executed reliably.

  Since only the hook part is placed in the goal post, it will not interfere with the competition.

Since the fall prevention device body is placed across the corner behind the competition goal post, the weight blocks to be stacked are hidden behind the corner of the frame and not seen from the front (front) side of the competition goal post. It will be a waste. In addition, even if the player falls inadvertently into the competition goal post from the front, it does not collide with the weight block and there is no risk of injury.

In addition, according to the invention of claim 2 , since the shapes of the engaging portions of the plurality of weight blocks are made the same shape, mass production can be performed using the same mold.

In addition, according to the third aspect of the present invention, since the punched hole is formed in the support plate portion, the fall prevention tool main body can be reduced in weight and easy to carry.

  Hereinafter, a fall prevention tool 1 for a goal post for competition according to a first embodiment of the present invention will be described with reference to FIGS. The fall prevention device 1 according to the present embodiment prevents the goal post 50 used in the soccer competition shown in FIG. 1 from tipping forward (diagonally upward in the right direction in FIG. 1). The four weight blocks 4 are formed in the same shape.

  The fall prevention tool main body 2 is formed of a rigid plate such as iron, stainless steel, or plastic. Here, the iron plate is used, and a pair of branches bifurcated from one side of the square support plate portion 3 having a side of about 50 cm. The end plates 5 and 5 are integrally connected. As shown in FIG. 4, the elongated strip-shaped end plates 5 and 5 are bent so that their distal ends stand up at an oblique 45-degree fold line inward from each other, and then twice at right angles to the horizontal and vertical directions. By folding back, hook portions 6 and 6 having a U-shaped cross section are integrally formed.

  The recessed grooves opened downward by the hook portion 6 having a U-shaped cross section are in directions orthogonal to each other at the pair of hook portions 6 and 6. Further, the horizontal inner diameter and the vertical height of the concave groove are larger than the horizontal width and the vertical height of the rear frame 51A and the side frame 51B of the goal post 50, which will be described later. 6 and 6 can be hooked to the rear frame 51A and the side frame 51B.

  A pair of fan-shaped bracket plates 7 and 7 are attached by welding between the side surfaces of the hook portions 6 and the end plates 5 with a horizontal width of the hook portions 6, and the hook portions 6 are horizontal end plates 5. The side surface is supported upright so as not to be inclined and deformed. Between the bracket plates 7 and 7 standing upright in the vertical direction, similarly, a steel bar 8 is spanned by welding, and the bracket plate 7 and 7 can be held and the steel bar 8 can be held to carry the fall prevention tool main body 2. I am doing so.

  Further, inside the four corners of the support plate portion 3, guide frames 9 each having an L-shaped cross section are erected through the support plate portion 3 by welding. As shown in FIG. 4, four weight blocks 4 that are stacked in two rows and two stages are placed on the support plate portion 3 surrounded by the guide frames 9 that are erected at four locations. Since the periphery of the weight block 4 is positioned in the horizontal direction by the four guide frames 9, the weight block 4 that is moved in the horizontal direction and that is inclined and stacked does not fall.

  A rectangular punch hole 10 is formed in the projection area where the weight block 4 to be placed is projected onto the support plate 3, that is, inside the area on the support plate 3 surrounded by the four guide frames 9. Yes. By drilling the punch hole 10, the weight of the iron overturn prevention tool main body 2 can be reduced, and the contour of the punch hole 10 is smaller than the contour of the weight block 4. There is no escape from 10 downward.

  In addition, a U-shaped iron handle 11 is attached by welding to the other side of the end plate 5 that does not interfere with the mounting area of the weight block 4 described above on the support plate portion 3. The fall prevention tool body 2 can be carried.

  The weight block 4 disposed above the support plate portion 3 is a rectangular block made of concrete and having a rectangular outline, and concave grooves 4a are formed on both sides opposed in the longitudinal direction, and the weight block 4 is carried in each concave groove 4a. An iron rod 12 for the purpose is suspended. Four weight blocks 4 configured in this way are formed in the same shape. Thereby, the mold for forming the weight block 4 is shared, and an arbitrary number of weight blocks 4 can be mass-produced at low cost.

  The number of weight blocks 4 used in the set of fall prevention tools 1 is to prevent the weight blocks 4 from falling by their own weight, the load of the goal post 50, the shape, etc. By using a sufficient number and selecting the necessary number of weight blocks 4, various goal posts can be prevented from falling. The weight block 4 can be formed of various materials other than concrete as long as a predetermined weight is obtained.

  When the fall prevention tool 1 is installed to prevent the goal post 50 from overturning, as shown in FIG. 1, the rear frame 51 </ b> A along the contact surface is first included in the frame 51 constituting the goal post 50. The fall prevention tool main body 2 is installed at the rear corner where the side frame 51B intersects. In this installation, the pair of end plates 5 and 5 of the fall prevention tool main body 2 are inserted through the gap between the stitches of the goal net 52 covering the frame 51 or the gap between the goal net 52 and the frame 51 across the corner. The pair of hook portions 6 and 6 are respectively hooked on the rear frame 51A and the side frame 51B from above. In this installed state, the support plate portion 3 is disposed horizontally along the ground contact surface of the goal post 50 behind the corner.

  Thereafter, as shown in FIGS. 1 and 2, four weight blocks 4 are placed on the support plate portion 3 guided by the guide frame 9 one by one, and two rows in the horizontal direction and the vertical direction. The two layers are stacked to complete the installation of the overturn prevention device 1. As shown in FIG. 1, the fall prevention device 1 is installed at two corners behind the goal post 50, and the goal posts 50 and 50 are installed at two opposing locations on the stadium like soccer. In this case, two sets of fall prevention tools 1 are installed for each, and a total of four sets of fall prevention tools 1 are installed.

  In the state in which the overturn prevention device 1 is installed, a part of the total load of the stacked weight blocks 4 acts downward on the rear frame 51A and the side frame 51B via the hook portion 6, and the goal post 50 Falling forward is prevented.

  Furthermore, even if the rear frame 51A is slightly lifted when the goal post 50 is about to fall down, the hook portion 6 is hooked on the rear frame 51A and the side frame 51B, so that the fall prevention tool main body 2 is detached from the frame body 51. There is nothing. In addition, since the fall prevention device 1 is installed behind the goal post 50 where the competitors compete, it is installed behind the corner of the frame 50 so that it does not interfere with the competition. Even if a person falls into the goal post 50, it does not collide with the weight block 4 and there is no risk of injury.

  In order to move the goal post 50, when the installation of the fall prevention device 1 is released, it is removed from the stacked uppermost weight block 4 in the reverse procedure to the above, and finally the hook portion 6 is hooked. Unscrew and remove the fall prevention tool body 2.

  When the anti-tip device 1 is moved, each weight block 4 and the anti-tip device body 2 can be moved separately. In particular, the weight block 4 has two rod 12 handles on both sides. Since the prevention tool 2 is provided with three handles of the iron bars 8 and 8 and the handle 11, even a powerless child can be shared by several people and easily carried.

  In the above-described embodiment, the four weight blocks 4 are stacked in two rows and two stages in the four guide frames 9 and are positioned in the horizontal direction, but are higher than the height of the guide frames 9. When stacking weight blocks, the upper and lower weight blocks to be stacked may be engaged to perform horizontal positioning.

  5 and 6 show the overturn prevention device 20 according to the second embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6, the plurality of weight blocks 21 constituting the fall prevention tool 20 are plate-like blocks having the same rectangular contour formed of concrete, and are engaging projections 21 a of a quadrangular prism common to each plane. However, the engagement recessed part 21b which fits with the engagement convex part 21a is provided in common in each bottom face. The configuration of the weight block 21 is the same as that of the weight block 4 described above except for the configuration in which the engagement convex portion 21a and the engagement concave portion 21b are formed.

  Further, the guide frame 23 erected on the fall prevention tool main body 22 and the lowermost weight block 21 to be stacked are used to position in the horizontal direction, and stand up compared to the guide frame 9 according to the first embodiment. The height to do is low.

  As in the first embodiment, the fall prevention device 20 configured as described above hooks the hook portions 6 and 6 to the rear frame 51A and the side frame 51B, and the fall prevention device main body 22 is connected to the goal post. Place horizontally on the ground plane near the 50 corner.

  Thereafter, the two weight blocks 21 are arranged in two rows in the four guide frames 23, positioned in the horizontal direction, and placed on the support plate portion 3. In this state, as shown in FIG. 5, the engaging protrusions 21 a protrude on the planes of the two weight blocks 21.

  Accordingly, when a new weight block 21 is placed on the engagement convex portion 21a of the weight block 21 while being fitted in the engagement concave portion 21b on the bottom surface, the upper and lower weight blocks 21 are engaged, and the horizontal positioning is performed. Is done.

  Similarly, if the weight block 21 is further stacked on the weight block 21, the two weight blocks 21, 21 stacked on the upper and lower sides engage with each other in the horizontal direction. It will not fall down even if it is stacked in multiple stages.

  The shape of the engaging convex portion 21a and the engaging concave portion 21b formed on the weight block 21 is not limited to the above-described embodiment, and any shape can be used as long as the weight blocks 21 stacked in multiple stages can be positioned horizontally so as not to collapse. , Can be any shape.

  In the first and second embodiments described above, the end plate 5 of the iron plate is bent to form the hook portion 6. However, any shape can be used as long as the hook portion 6 can be hooked on the rear frame 51 </ b> A or the side frame 51 </ b> B. The part can be formed. Further, the shape of the hook portion is not limited to the U-shaped cross section, and may be, for example, an arcuate arch shape as long as it is a gate shape that opens downward and can be hooked on the frame 51.

  Further, the support plate portions 3 of the fall prevention tool main bodies 2 and 22 are arranged directly on the grounding surface. However, if they are arranged horizontally along the grounding surface of the goal post 50, the frame 51 A spacer member may be interposed between the support plate portion 3 and the grounding surface in order to adjust the hooking position of the hook portion 6 to the height.

  Furthermore, although the weight blocks 4 and 21 are arranged in two rows in the horizontal direction on the support plate portion 3, they may be arranged in one row or three or more rows.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a fall prevention tool that is used together with a competition goal post and supports the goal post in an installed state.

It is a perspective view which shows the state which installed the fall prevention tool 1 of the competition goal post which concerns on 1st Embodiment of this invention. It is the longitudinal cross-sectional view cut | disconnected along the AA line of FIG. It is a top view which shows the state which installed the fall prevention tool 1. FIG. FIG. 3 is an exploded perspective view of the fall prevention tool 1 with partial omission. It is a disassembled perspective view of the fall prevention tool 20 which concerns on 2nd Embodiment of this invention. (A) of the weight block 21 which concerns on 2nd Embodiment is a top view, (b) is a side view, (c) is a front view. It is an expanded longitudinal cross-sectional view which shows the fall prevention tool 100 of the conventional competition goal post. It is a perspective view which shows the state which installed the fall prevention tool 100 of the conventional competition goal post.

DESCRIPTION OF SYMBOLS 1,20 Competition goal post fall prevention device 2,22 Fall prevention device body 3 Support plate part 4,21 Weight block 5 End plate 6 Hook part 9,23 Guide frame (guide frame part)
DESCRIPTION OF SYMBOLS 10 Hole 21a Engagement convex part 21b Engagement recessed part 50 Competition goal post 51 Frame (frame)
51A Rear frame 51B Side frame

Claims (3)

Top guide frame portion (9) is erected integrally with Rutotomoni of the support plate portion arranged along the ground plane of the competition goalpost (50) (3), a pair of end plates (5) is a support plate A pair of hook portions (a pair of hook portions ( 2) branched in a bifurcated manner on one side of the portion (3) and orthogonal to each other in a horizontal plane parallel to the ground plane and open toward the ground plane ( 6) a fall prevention device main body (2) integrally connected;
It comprises a plurality of weight blocks (4) that are positioned and supported in the horizontal direction by the guide frame (9) and placed on the support plate (3).
Of the frame body (51) constituting the competition goal post (50), to the rear frame (51A) and the side frame (51B) that intersect at the rear corner along the ground contact surface of the competition goal post (50). , weight block (4) anti-tip device for athletic goal posts, wherein the pair of hook portions that the hooked respectively (6) of the anti-tip device body mounted with the (2). An engaging convex part (21a) is formed on the plane, and an engaging concave part (21b) engaged with the engaging convex part (21a) on the bottom surface is formed in the same shape in each of the plurality of weight blocks (21). The weight block (21) is laminated on the support plate part (3) by engaging the engaging convex part (21a) and the engaging concave part (21b) of the mutually facing surfaces. fall prevention tool of the competition for the goal post as claimed in. 2. A through hole (10) is formed in a projection region of a support plate (3) in which a weight block (4) to be placed is projected onto the support plate (3). Or the fall prevention tool of the goal post for competition of any one of Claim 2 .

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