JP7153389B2 - net playground equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a net playground equipment on which a person can get an extraordinary feeling.

Net playground equipment is an amusement facility in which a net made of materials such as rope is laid at a high place. It is installed in athletic fields and parks. In addition, the continuous shaking creates a unique feeling of floating and tension, and you can enjoy an extraordinary thrill, which is very popular among children. There are various methods of laying nets, such as those that connect two points like a bridge, those that spread out in a plane like a hammock, and those that have a large slope and can be climbed.

Net playground equipment has been widely used in facilities for children for a long time. Among them, Patent Literature 1 discloses a playground equipment having a play space extending in the vertical direction and having an extremely simple structure. This playground equipment is characterized in that it comprises a net body and supports for stretching the net body, and that one end of the net body is closed to form two upper and lower layers. In addition, Patent Document 2 discloses a play net that has variability so as not to get bored. This play net has a structure in which the net is stretched with attachment ropes, but by using auxiliary ropes separately from this, the net can be transformed into a mountain shape, a wave shape, etc., keeping children's interest, Prevent boredom.

Trampolines are also similar to net playground equipment. A trampoline is a structure that allows you to jump high using springs and other elastic members, so it is sometimes treated as a mere recreational tool, but there are also "trampoline competitions" that compete for advanced skills without entertainment elements. ing. Patent document 3 is mentioned as an example of technical development regarding this trampoline. This document discloses a water jumping tool for children that allows jumping motion on water, and a canvas is stretched on the upper part of an unsinkable frame body.

In addition, Pakab (Non-Patent Document 1), which is said to have originated in France, is an example of a large-scale net playground equipment that utilizes forests. Pakabu uses a grove of trees to lay the net, so it is possible to secure a sufficient height from the ground. People on the net cooperate to jump up and down, which amplifies the rocking movement and has amusement that exceeds that of ordinary net playground equipment.

Published practical application No. 62-119960 Utility Model Registration No. 3054792 Published practical application No. 49-94732 Trademark Registration No. 5992588

Net playground equipment for outdoor installation can be easily scaled up, and since the net can be laid at a high place, it is easy to create an extraordinary atmosphere and is excellent as amusement equipment. However, since it is installed outdoors, it is unavoidable to be affected by weather conditions. Therefore, in recent years, in shopping centers, public facilities, etc., indoor type net playground equipment is sometimes installed as a centerpiece for attracting customers. The indoor type does not disappoint because it can be used reliably without being affected by the weather.

In order to further enhance the attractiveness of indoor net playground equipment, there is a demand for swinging the net to a large extent and using it like a trampoline. However, indoor types have limited space above and below, so it is difficult to introduce a simple structure such as supporting the net with a grove of trees. Therefore, it is conceivable to support the net with an elastic member such as a spring or rubber, like a trampoline. However, with this structure, if the net playground equipment becomes large-scale, a large amount of elastic members are required, and in addition, a large amount of tools for holding both ends of the elastic members are required, so an increase in construction costs and work volume can be avoided. can't

The present invention was developed on the basis of such actual circumstances, and aims to provide a net playground equipment that can reduce construction costs and work load even when scaled up, and that can easily achieve large rocking movements.

The invention according to claim 1 for solving the above-mentioned problems comprises a net-like support net on which a person can be placed, a support for holding the support net aerially, and a support along the inner peripheral surface of the support. A hanging bar in the form of an extending round bar and a rope connecting between the support net and the hanging bar are provided, and a gap for passing the rope is secured between the support and the hanging bar. and the hanging bar is attached to the support via a connecting piece, the hanging bar being able to hold the rope at any position thereof and the hanging bar at a plurality of points between the adjacent connecting pieces. A rope can be anchored, and the rope is stretched so as to reciprocate repeatedly in a zigzag pattern between the outer edge of the support net and the hanging rod, and the rope pulls the support net toward the support. The support net can hold the rope at any position of its outer edge, and the expansion and contraction of the rope and the support net causes the support net to swing, and the tension of the rope is changed to cause the support net to swing. A support net is adjustable in rocking motion, and a protective mat is laid between the support and the support net to cover the rope, and the support and the hanging rods support the support net. A gap is provided between the outer edge of the support net and the hanging bar for laying the rope, and the outer edge of the support net is separated from the hanging bar. , The net play equipment is characterized in that the support is divided into a plurality of sections, and the hanging bar is also divided into a plurality of sections corresponding to the sections of the support.

The net play equipment according to the present invention is composed mainly of four elements, ie, a support, a hanging bar, a support net and a rope, and is sized so that a plurality of people can ride on it at once. Of these four elements, the support net is for people to actually jump on, the support surrounds the support net and serves as a foundation to hold the support net imaginary, and the rope is the support. It is used to draw the outer edge of the net to the support, and the hanging bar is the part for holding the rope. Although the present invention is intended to be installed indoors, it can be installed outdoors without any problem.

The support net is made by intersecting strings made of various fibers at predetermined intervals to form a mesh, and is not spread out in a plane without gaps like a canvas. Therefore, when a person gets on the support net, they can easily see the situation directly below them through the mesh, and they can definitely get a sense of floating. As a matter of course, the mesh is restricted to a space that even children cannot get their hands or feet into, ensuring sufficient safety. The material and thickness of the support net should be selected so that it can withstand the load of a person. Note that the support net may be laminated in multiple layers to improve strength and to make the mesh finer.

The support surrounds the support net and is a framework for holding the support net, and inevitably has an annular shape that is one size larger than the support net. The annular shape may be rectangular like a picture frame, circular, polygonal, or the like. Further, the outer edge of the support net is made smaller than the inner peripheral surface of the support, and a predetermined gap is secured there. A certain amount of space must be secured under the support net, and some kind of leg may be provided under the support.

The rope is used to draw the support net to the support, and is assumed to elastically expand and contract under a tensile load, thereby realizing swinging of the support net. The rope is not simply tied between the support net and the support, but a single rope is repeatedly reciprocated in a zigzag pattern between the support net and draws the entire outer edge of the support net. . However, the length of the rope is not limited to one.

The hanging bar is a rod-shaped member that extends along the inner peripheral surface of the support and serves to hold the rope on the support side. Furthermore, the hanging bar has a smaller cross-section than the support and is arranged at a predetermined distance from the support to ensure a gap for passing the rope therethrough. However, the hanging bar must be firmly integrated with the support, and the two are connected with a certain amount of space between them. Also, the rope wraps around the hanging bar only halfway around and is folded back, but the direction of the rope is different before and after the folding, and the rope advances in a zigzag pattern between the support net and the hanging bar. Structurally, the hanging bar may be divided into a plurality of sections, but even in such a case, the gap between the divided sections should be made as narrow as possible so that the section is substantially circular.

A hanging bar is a simple bar that holds the rope over its entire length. Also, the support net is mesh-like and can hold the ropes at any position along its outer edge. Therefore, the rope can be freely arranged without any restrictions, and the interval between the serpentine folds is determined each time based on the size of the support net and the load conditions. The swing of the support net can be adjusted by changing the tension of the rope, but since the tension of the rope is inevitably uniform, the support net can be held in a well-balanced manner.

When the support net is pulled by the support, a single rope may be used and stretched between the support net and the hanging rod in a zigzag manner, which is an easy task. In addition to the role of drawing the support net, the upper surface of the support can also be used as a passage. In addition, the hanging rod can be made from a general-purpose steel pipe or round steel, making it easy to manufacture.

In order to ensure the safety of the user, the protective mat is laid between the support and the support net to prevent hands and feet from getting into the zigzag rope. The protective mat is therefore laid without interruption between the support and the support net. By using the protective mat, the supports and the ropes are hidden, and the peripheral passage and the support net can be integrally connected without discomfort.

In addition, the support is divided into a plurality of sections, and the hanging rod is also divided into a plurality of sections corresponding to the sections of the support. When various steel materials are used as supports for holding support nets, dividing them into multiple sections eliminates the need to handle heavy or long items during transportation and installation, reducing the amount of work during construction. .

In the present invention, the hanging rod is also divided corresponding to the sections of the support. Therefore, if the hanging rod is integrated with the support at the manufacturing stage, the rope can be stretched immediately after the support is installed at the site, and the amount of work during construction can be reduced. However, for the convenience of manufacturing and transportation, hanging rods may be integrated with the support on site. Even if the hanging rod is divided into a plurality of compartments, it is desirable not to impose any restrictions on the anchoring position of the rope. Therefore, the hanging rods are arranged so as to connect both ends of the divided supports so that the hanging rods are not interrupted even at the boundary between the adjacent supports.

The invention according to claim 2 is for maintaining the soundness of the rope, a cylindrical shock absorber is inserted into the hanging rod, and the rope is folded back so as to surround the outer peripheral surface of the shock absorber, Furthermore, the shock absorber is characterized by being displaceable with respect to the hanging bar. The rope is folded back halfway around the outer circumference of the hanging rod, and the hanging rod is made of metal, and the rope expands and contracts violently. Therefore, direct contact between the hanging rod and the rope is expected to affect the soundness of the rope due to friction. Therefore, in the present invention, a cylindrical buffer is inserted into the hanging rod, and the buffer is displaceable in both the rotational direction and the axial direction with respect to the hanging rod.

The shock absorber inevitably has a cylindrical shape, and a hanging rod runs through the center of the shock absorber. Although the detailed shape of this shock absorber is not limited, it is desirable to provide flanges at both ends or to have a small-diameter central portion in the shape of an hourglass in order to prevent the rope from coming off. By using the shock absorber in this way, even if the rope expands and contracts sharply, the shock absorber is displaced to follow the movement of the rope, preventing friction and maintaining the soundness of the rope. The shock absorber can be displaced in the axial direction of the hanging rod, and does not restrict the position at which the rope is anchored.

As in the first aspect of the invention, the net play equipment is composed of a support, a hanging bar, a support net, and a rope, and the hanging bars and supports are arranged annularly along the inner peripheral surface of the support. Rope can be anchored at any position on the net. Therefore, in addition to being able to freely adjust the interval between the zigzag reciprocating ropes, the tension of the ropes is inevitably uniform. Due to such features, even when the size and shape of the support net are different, the support net can be drawn in an optimal state and can be easily swung to a large extent.

Moreover, since the present invention does not use an elastic member such as a spring, there is no need for tools for holding both ends of the elastic member, and even when the scale is increased, the cost and amount of work during construction can be reduced. Although the present invention was developed with the assumption that it will be installed indoors, there is no problem with outdoor installation if weather resistance is taken into consideration.

Also, the hanging bar is arranged on the inner peripheral surface of the support. Therefore, the upper surface of the support can be used as a passageway, and since the rope is covered with a protective mat, the surrounding passageways and stairs to the support net become an integral flat surface, and the support and rope can be used. existence is obscured. As a result, it is possible to obtain an extraordinary sensation that only one corner of the wide floor surface is swinging, and to provide a net playground equipment that does not exist conventionally.

In addition to dividing the support into multiple compartments, the hanging rods are also divided corresponding to the compartments of the support, and the hanging rods are integrated into each individual support to reduce weight during transportation and installation. There is no need to handle objects or large objects, and the amount of work during construction can be reduced. Moreover, if the hanging rod is integrated with the support at the manufacturing stage, the rope can be stretched immediately after the support is installed at the site, further reducing the amount of work during construction.

As in the invention described in claim 2, by inserting a cylindrical shock absorber into the hanging rod and constructing the rope so that it folds back on the outer peripheral surface of the shock absorber, even if the rope expands and contracts violently, the shock absorber will remain in this position. to prevent friction and maintain the integrity of the rope. Moreover, the shock absorber can be freely displaced along the axial direction of the hanging bar, and can hold the rope at any position.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a configuration example of a net playground equipment according to the present invention, in which a support net is arranged inside a support and both are integrated with a rope. FIG. 2 is a perspective view showing a usage state of the net toy of FIG. 1; FIG. 2 is a perspective view showing a state in which incidental equipment is incorporated into the net toy of FIG. 1; FIG. 2 is a perspective view showing the detailed structure of the supporting body, hanging bar, etc. of FIG. 1; It is a perspective view which shows the form which incorporated the shock absorber in the hanging stick. It is a perspective view which shows the case where a net playground equipment is circular.

FIG. 1 shows a configuration example of a net playground equipment according to the present invention, in which a support net 41 is arranged inside a support 11 and both are integrated with a rope 31. As shown in FIG. The support 11 shown in this figure is made by arranging steel materials having a rectangular cross section in a rectangular shape, and the support 11 is placed on the legs 16 in order to hold the support net 41 aerially. In the drawing, a part of the support body 11 is not drawn in order to show the internal structure, but it actually has an uninterrupted annular shape. However, in consideration of transportation and installation, the support 11 is composed of a total of eight sections bordering on the division surface 15 . In addition, although the supporting body 11 and the leg portion 16 are integrated in this figure, they may have a split structure.

The hanging rod 21 is made by processing a general-purpose steel pipe or round steel, and is arranged in an annular shape along the inner peripheral surface of the support 11 . However, the hanging bar 21 is interrupted at the position of the dividing surface 15 instead of having a continuous annular shape. A space is secured between the support 11 and the hanging rod 21 so that the rope 31 can easily enter. 24 are arranged. Naturally, the arrangement intervals of the connection pieces 24 are determined based on safety. In addition, although the hanging bar 21 is arranged slightly lower than the upper surface of the support 11 in this figure, both may be aligned at approximately the same height.

The support net 41 is formed by intersecting strings made of various fibers at predetermined intervals to form a mesh. The floor surface 81 and the like immediately below can be visually recognized without difficulty. The outer edge of the support net 41 has a rectangular shape slightly smaller than the hanging rod 21, and the support net 41 is pulled toward the support body 11 via the hanging rod 21 by stretching the rope 31 between them. It is assumed that the rope 31 is elastically deformed by the load of a person placed on the support net 41, but naturally the support net 41 is also elastically deformed to some extent.

The rope 31 repeatedly reciprocates between the outer edge of the support net 41 and the hanging rod 21 in a serpentine manner, and strongly draws the support net 41 to the support 11, but causes moderate expansion and contraction depending on the load. The materials and thickness are selected accordingly. Therefore, when a person gets on the support net 41, the rope 31 is stretched and the reaction force increases to counter the load of the person. The interval between the ropes 31 is determined based on the load conditions, and the support net 41 is drawn without loosening. there is

Since only the rope 31 is arranged between the support 11 and the support net 41, there is a risk that the hands, feet, etc., may fall around the rope 31. - 特許庁Therefore, a protective mat 51 is laid between the support 11 and the support net 41 to ensure safety. Since the protective mat 51 fills both boundaries without gaps, it is necessary to arrange the protective mat 51 in a ring without interruption, and to prevent it from moving due to vibration or the like by fixing it to the support 11 or the like by some means. FIG. 1 is merely an example of the configuration of the net playground equipment according to the present invention, and the support 11 can be made of various types of steel such as H-shaped steel, or wood.

FIG. 2 shows how the net toy of FIG. 1 is used. In this way, when the user is placed on the support net 41, the periphery of the support net 41 protrudes downward, and the rope 31 is stretched. At this time, not only the rope 31 but also the support net 41 are stretched, but by adjusting the tension of the rope 31, when the user jumps, it behaves like a trampoline, enhancing entertainment. However, even when there are many users, it is necessary to prevent the support net 41 from contacting the floor surface 81, and care must be taken to prevent the users from jumping excessively. Note that in this figure, the protective mat 51 is not drawn in order to show the structure.

FIG. 3 shows a state in which incidental equipment is incorporated into the net playground equipment of FIG. In an actual net playground equipment, a passage for users to enter and exit the support net 41 and various fall prevention measures are required. In addition, a handrail 74 is attached to the support 11 except for the position of the stairs 71 to prevent accidental falls.

A protective mat 51 is continuously spread between the support 11 and the support net 41, completely covering the hanging rod 21, the rope 31, etc., and preventing the hands and feet from falling in this area. do not have. Furthermore, in this figure, the outer edge of the protective mat 51 is placed on the upper surface of the support 11, so that the support 11 cannot be visually recognized by the user who has climbed the stairs 71. FIG. Therefore, it is difficult for the user to recognize the structure of the net playground equipment, and the user can be given the impression of a completely new playground equipment. Note that unlike this figure, the protective mat 51 may not be placed on the upper surface of the support 11 when there is a large step between the support 11 and the rope 31 .

FIG. 4 shows the detailed structure of the support 11, hanging rod 21, etc. of FIG. The support 11 is divided into a plurality of sections with the division surface 15 as a boundary, which facilitates manufacturing and transportation. At the time of construction, the support 11 is dismantled and transported to the site, and each support 11 is installed at a predetermined position. A bolt 62 is inserted so as to pass through 11, and a nut 63 is screwed to its tip. Two plates 61 are arranged so as to sandwich the side surface of the support 11, and the two plates 61 are pulled together with bolts 62 and nuts 63, so that the supports 11 adjacent to each other across the dividing surface 15 are integrated. It should be noted that this drawing is only an example of a method of integrating the supports 11, and in reality, both can be integrated by various methods.

A hanging rod 21 for holding the rope 31 is formed by processing a general-purpose steel pipe or round steel, and is arranged along the inner peripheral surface of the support 11 . The hanging rod 21 is also divided along the dividing surface 15, and the hanging rod 21 is integrated with each support 11 so as to connect both ends thereof. Therefore, when the adjacent supports 11 are integrated, two hanging rods 21 are also adjacent to each other with the dividing surface 15 interposed therebetween, forming a substantially ring shape. The hanging bar 21 is integrated with the supporting body 11 via connecting pieces 24 in order to secure a gap for the rope 31 to enter. Arranged to ensure the necessary strength.

FIG. 5 shows a form in which a shock absorber 28 is incorporated into the hanging rod 21. As shown in FIG. The cushioning device 28 has a drum shape with a small diameter at the center. 11 is detained. The shock absorber 28 can swing with respect to the hanging rod 21 and can be displaced in the axial direction of the hanging rod 21 to follow the expansion and contraction of the rope 31 without difficulty. Therefore, the rope 31 is prevented from being deteriorated by friction, and reliability is improved.

Since the buffer 28 inserted into the hanging bar 21 can be freely displaced except for the position where the connecting piece 24 is located, the arrangement of the rope 31 is not greatly restricted. In addition, in the configuration shown in this figure, it is necessary to insert the shock absorber 28 into the hanging bar 21 prior to integrating the hanging bar 21 with the support 11 . However, the method of incorporating the shock absorber 28 is arbitrary, and it is also possible to split the shock absorber 28 in half.

FIG. 6 shows a case where the net toy is circular. The shape of the net toy according to the present invention is flexible, and thus the support 12 and the support net 42 can be circular. The support 12 here is divided into four sections with a dividing plane 15 as a boundary. The hanging bar 22 is curved according to the support 12, but is divided at the dividing surface 15 like the support 12, and the support 12 and the hanging bar 22 are integrated via the connecting piece 24. ing. The shape of the net playground equipment is flexible, and in addition to the conventional rectangular and circular shapes, it can also be polygonal.

In FIG. 6, corresponding to the shape of the support 12, the outer edge of the support net 42 is also circular. As shown, the rope 31 is stretched in a zigzag pattern. The protective mat 52 has a circular shape with the inside cut out so as to completely cover the rope 31 . In addition, a slope 72 serving as a passage is arranged outside the support 12 . The slope 72 has a ring shape that continuously surrounds the support 12 so that the support net 42 can be placed on the support net 42 from any position.

11 supports (those arranged in a rectangle)
12 supports (those arranged in a circle)
15 Parting surface 16 Leg 21 Hanger (linear)
22 hanging rod (whole curved)
24 Connection piece 28 Shock absorber 31 Rope 41 Support net (rectangular)
42 Support net (circular)
51 Protective mat (arranged in a picture frame)
52 protective mats (arranged in a circle)
61 plate 62 bolt 63 nut (used to fix the plate)
71 Stairs 72 Slope 74 Handrail 81 Floor

Claims (2)

A net-like support net (41 or 42) on which a person can be placed, a support (11 or 12) that holds the support net (41 or 42) in an airtight manner, and an inner periphery of the support (11 or 12) A hanging rod (21 or 22) extending along the surface and a rope (31) connecting the support net (41 or 42) and the hanging rod (21 or 22),
Between the support (11 or 12) and the hanging rod (21 or 22), a clearance is provided for passing the rope (31), and the hanging rod (21 or 22) is a connecting piece. (24) to said support (11 or 12), said hanging bar (21 or 22) being able to hold said rope (31) in any position thereof and said adjacent connecting piece The rope (31) can be anchored at multiple points between (24),
The rope (31) is stretched between the outer edge of the support net (41 or 42) and the hanging rod (21 or 22) so as to reciprocate repeatedly in a zigzag pattern. said support net (41 or 42) is drawn to said support (11 or 12), said support net (41 or 42) is capable of holding said rope (31) at any position of its outer edge, said The expansion and contraction of the rope (31) and the support net (41 or 42) causes the support net (41 or 42) to swing, and the tension of the rope (31) is changed to change the support net (41 or 42). is adjustable,
A protective mat (51 or 52) covering the rope (31) is laid between the support (11 or 12) and the support net (41 or 42),
Said support (11 or 12) and said hanging bar (21 or 22) are arranged to surround said support net (41 or 42), and for laying said rope (31), said support net A gap is secured between the outer edge of the support net (41 or 42) and the hanging rod (21 or 22), and the outer edge of the support net (41 or 42) is separated from the hanging rod (21 or 22). cage,
The support (11 or 12) is divided into a plurality of sections, and the hanging rod (21 or 22) is also divided into a plurality of sections corresponding to the sections of the support (11 or 12). A net playground equipment characterized by: A cylindrical shock absorber (28) is inserted into the hanging rod (21 or 22), and the rope (31) is folded back so as to surround the outer peripheral surface of the shock absorber (28). 2. Net play equipment according to claim 1, characterized in that the equipment (28) is displaceable with respect to the hanging bar (21 or 22).

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