JPH0522198Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" The present invention relates to an indoor gym.

``Prior Art'' Conventionally, as an indoor gym, there is one in which the ends of a plurality of paper tubes are connected to each other in a three-dimensional lattice shape with a large number of joints. The joints used in this giant gym include a three-leg end joint that has three legs that intersect at right angles to each other, and a three-leg end joint that has two legs that extend in opposite directions and intersect at right angles to each other on a plane that is orthogonal to these legs. a four-legged intermediate joint having two legs, and a five-legged intermediate joint having one leg and four legs extending radially at 90° intervals on a plane perpendicular to the axis thereof;
Two legs extending in opposite directions and four legs extending radially at 90° intervals on a plane perpendicular to these legs.
A six-leg intermediate joint with book legs is used, and by connecting each leg of each joint to the leg of another joint via a paper tube, a cubic lattice-shaped indoor joint is formed. Ru.

For example, the conventional indoor joint gym shown in FIG. 7 includes 100 paper tubes 102, 32 3-leg end joints 103, 8 4-leg intermediate joints 104, and 12 5-leg intermediate joints. 105 and
As shown in FIG. 8, the first step frame 10 consists of eight six-leg intermediate joints 106 and is placed on the floor.
It is assembled by sequentially connecting the second tier frame 101b, third tier frame 101c, and fourth tier frame 101d to 1a.

As shown in FIG. 8, the first stage frame 101a has four
Twelve paper tubes 102 connected in a cross-shaped manner by five-legged intermediate joints 105, and three paper tubes 102.
and four sets of outer peripheries connected in series by two 4-leg intermediate joints 104, and the outer periphery of each set is connected to 12 paper tubes 102 connected in a grid pattern through the 4-leg intermediate joints 104. At the same time, both ends thereof are connected to the ends of the other outer periphery via a three-leg end joint 103 in which one leg is disposed upward.

In addition, the second stage frame 101b has 12 paper tubes 102 connected in a parallel cross shape by four six-legged intermediate joints 106, and three paper tubes 102 connected by two five-legged intermediate joints 105. The outer periphery of the four groups,
Four three-leg end joints 103, each of which connects the ends of the outer periphery, with one leg facing downward, each of the three-leg end joints 103, each of the five-leg intermediate joints 105, and each of the six-leg intermediate joints 106. 16 vertically oriented paper tubes 102 connected to the downward legs of the paper tube 102. Furthermore, the third stage frame 101c has four 6
Paper tubes 102 connected in a cross-shaped manner by intermediate leg joints 106, and four paper tubes 102 connected between their outer ends via end joints 103 of each pair of three legs. 12 vertical paper tubes 102 connected to the downward legs of the 6-leg intermediate joint 106 and the 3-leg end joints 103
Equipped with. The third stage frame 101d has four paper tubes 102 connected by four three-leg end joints 103 with one leg facing downward, and a downward-facing leg of each three-leg end joint 103. It includes four connected vertically oriented paper tubes 102.

``The problem that the invention attempts to solve'' In this conventional indoor gym,
Since the spacing between the paper tubes 102 is approximately the same as the length of the paper tubes 102, it is impossible for young children to enter or pass through the inside of the Young Gym while standing. As a result, there tends to be little variation in the form of play.

The present invention was made in view of the above circumstances, and the purpose is to provide an indoor young gym that allows for a variety of play formats and allows for more effective intellectual and physical education of young children. That is.

"Means for Solving the Problems" The present invention provides the following means in order to achieve the above object in an indoor giant gym in which the ends of a plurality of paper tubes are connected to each other in a three-dimensional lattice shape with a large number of joints. is being taught.

That is, the opposite ends of a pair of upper and lower horizontally oriented paper tubes are connected to each other via at least two vertically oriented paper tubes connected by intermediate joints, and end joints or intermediate joints connected to both ends of the vertically oriented paper tubes. A rectangular lattice frame is provided.

"Operation" The present invention consists of at least two vertical paper tubes, each of which has a pair of upper and lower horizontal paper tubes connected to each other by an intermediate joint, and an end joint or an intermediate joint connected to both ends of the paper tubes. Since we provide a rectangular lattice frame connected through the
A rectangular lattice frame with a height of two or more paper tubes can be entered and passed through by a child while standing.

"Embodiment" A specific embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

As shown in Fig. 1, this indoor joint gym 1 has 94 paper tubes 2, 20 3-leg end joints 3, 16 4-leg intermediate joints 4, and 8 5-leg intermediate joints. Consisting of a joint 5 and four six-legged intermediate joints 6, as shown in FIG.
The step frame 1c and the fourth step frame 1d are sequentially connected and assembled.

As shown in FIG. 3, the three-leg end joint 3 includes a shell-shaped connection center 3a and legs 3x, 3y extending from the connection center 3a at right angles to each other in three directions x, y, and z. , 3z. Furthermore, as shown in FIG. 4, the four-leg intermediate joint 4 includes legs 4+ extending in opposite directions from the shell-shaped connection center 4a.
y, 4-y and these legs 4 from the connecting center 4a.
It is provided with two legs 4x and 4z extending in two directions intersecting each other at right angles on a plane perpendicular to +y and 4-y. As shown in FIG. 5, the five-legged intermediate joint 5 has a leg 5y extending in one direction from a shell-like connection center 5a, and a leg 5y extending at 90 degrees from the connection center 5a on a plane perpendicular to the leg 5y. It has four legs 5+x, 5-x, 5+z, and 5-z extending in the radial direction. Further, as shown in FIG. 6, the six-legged intermediate joint 6 has legs 6+x, 6-x extending in opposite directions from the shell-shaped connection center 6a, and legs 6+x, 6-x extending from the connection center 6a in opposite directions. It has four legs 6+y, 6-y, 6+z, and 6-z extending in the radial direction at 90° intervals on a plane orthogonal to 6-x.

Each leg 3x, 3y, 3z, 4+ of these three leg end joints 3, four leg intermediate joints 4, five leg intermediate joints 5, and six leg intermediate joints 6
x, 4-x, 4y, 4z, 5x, 5+y, 5-
y, 5+z, 5-z, 6+x, 6-x, 6+y,
6-y, 6+z, and 6-z (hereinafter, the joints are used with various orientations, so the reference numbers for the legs will be omitted to simplify the explanation) have the same length, and each paper tube 2 It is formed into a cylindrical shape that is fitted in a tight fit.

Further, the diameter of each leg is gradually expanded from the distal end to the proximal end in at least one stage between the distal end and the proximal end of the outer circumferential surface of each leg until the diameter thereof becomes slightly larger than the inner diameter of the paper tube. A paper tube 2 in which an enlarged diameter portion whose diameter is reduced from the maximum diameter is formed to protrude uniformly and continuously over the entire circumference, and the outer surface of the connection center portions 3a, 4a, 5a, and 6a is fitted onto each leg. It is formed so as to be continuous with the outer peripheral surface of.

As shown in FIG. 2, the first stage frame 1a includes 24 paper tubes 2, four three-leg end joints 3, eight four-leg intermediate joints 4, and four five-leg intermediate joints 5. For example, 12 paper tubes 2 are connected by four five-legged intermediate joints 5 to form a parallel grid, and three paper tubes 2 are connected at right angles to each other.
Two four-leg intermediate joints 4, in which one of the legs faces upward and the other leg faces inward, are connected to form four sets of outer peripheries, and each outer periphery is arranged in turn in a parallel grid. At the same time as assembly, the outer peripheral ends of each set are connected by a three-leg end joint 3 with one leg facing upward.

In addition, the second stage frame 1b consists of 34 paper tubes 2, 4 3-leg end joints 3, 8 4-leg intermediate joints 4, and 4 5-leg intermediate joints 5,
It is assembled by dividing into a pair of left and right sets L and R. For example, group L on the left shows one paper tube 2 facing in the front-rear direction.
It has front and rear square lattice frames connected by. The four paper tubes 2 in each of the front and rear square lattice frames are 1
They are connected by three three-leg end joints 3, two four-leg intermediate joints 4, and one five-leg intermediate joint 5. Taking the front left square grid as an example, a three-leg end joint 3 is arranged at the front left corner so that the legs extend downward, backward, and to the left, and behind this three-leg end joint 3. At the rear end of the paper tube 2 connected to the extending legs, the legs are arranged upwardly, downwardly,
A leg extending forward of a four-leg intermediate joint 4 arranged to extend forward and to the left is connected, and a leg is connected to the rear end of the paper tube 2 connected to a leg extending leftward of the three-leg end joint 3. a four-legged intermediate joint 4 arranged so that it extends upward, downward, forward and to the right;
The leg 2 extending to the right is connected. A five-leg intermediate joint 5 is arranged at the rear right corner so that the legs extend upward, downward, forward, backward, and to the left, and the legs extending to the left of this five-leg intermediate joint 5 and the four-leg intermediate joint at the rear left corner are arranged. The leg extending to the right of the 4-leg intermediate joint 4 is connected via the paper tube 2, and the leg extending to the left of the 5-leg intermediate joint 5 and the leg extending to the rear of the 4-leg intermediate joint 4 at the front right corner connect the paper tube 2. Connected via. Paper tubes 2 are connected to the downwardly extending legs of the three-leg end joint 3, the four-leg intermediate joints 4, 4, and the five-leg intermediate joint 5, respectively. The left rear square lattice is assembled with the front and rear sides opposite to the left front square lattice, and the legs extend forward of the 5-leg intermediate joint 5 of the left rear square lattice and the legs extend rearward of the 5-leg intermediate joint 5 of the left front square lattice. The left set is formed by connecting the legs with the paper tube 2. Group R on the right
is assembled with the right and left hands reversed from the left side set L.

The lower end of each vertically oriented paper tube 2 of the second tier frame 1b is connected to the upward legs of the 3-leg end joint 3, the 4-leg intermediate joint 4, and the 5-leg intermediate joint 5 of the first tier frame 1a.

The third stage frame 1c consists of 32 paper tubes 2, 8 3-leg end joints 3, and 4 6-leg intermediate joints 6;
A paper in which 12 paper tubes 2 are connected to form a grid lattice, and the outer ends of each pair of paper tubes 2 extended in four directions, front, rear, left, and right, are connected to each other with three leg end joints 3 at both ends. They are connected by tubes 2, and are formed by connecting vertically oriented paper tubes 2 to the downwardly extending legs of each of the three leg end joints 3 and each of the six leg intermediate joints 6.

The lower end of each vertically oriented paper tube 2 of the third tier frame 1c is connected to the upward legs of the four five-legged intermediate joints 5 and the eight four-legged intermediate joints 4 of the second tier frame 1b.

The fourth stage frame 1d consists of eight paper tubes 2 and four three-leg end joints 3, and the four paper tubes 2 are connected by the four three-leg end joints 3 to form a square lattice frame. A paper tube 2 is connected to each downward leg of each of the four leg end joints 3 located at the four corners of this square lattice frame.

The lower end of each vertically oriented paper tube 2 of the fourth tier frame 1d is connected to a leg extending upward of the six-leg intermediate joint 6 of the third tier frame 1c.

The indoor giant gym 1 formed in this manner has the ends of a pair of upper and lower paper tubes 2 placed at the center of each of the four sides, front, rear, left, and right, and on the two front and back sides of the interior. 3 leg end joints 3, 5 leg intermediate joints 5 or 6 connected to
It is provided with a rectangular lattice frame formed by connecting via a leg intermediate joint 6 and two vertically oriented paper tubes 2 connected by a four-leg intermediate joint 4 or a five-leg intermediate joint 5, respectively. Therefore, a tunnel-like passageway 7 with two upper and lower stages is provided passing through the central part from the front to the rear, and an entrance/exit 8 with two upper and lower stages is formed on each of the left and right sides.
Children may walk through these aisles 7 while standing,
It is possible to go in and out of the Jinkle Gym 1 while standing through the passageway 7 and entrance 8, diversifying the form of play, and more effectively promoting the intellectual and physical education of young children.

In the above embodiment, the rectangular lattice frames are provided vertically, but it is also possible to configure the rectangular lattice frames to be provided horizontally.

"Effects of the Invention" As described above, the present invention has an end joint or an intermediate joint that connects both ends of a pair of paper tubes to each other, and at least two paper tubes connected by the intermediate joints. Since a rectangular lattice frame connected to the paper tubes is provided, a child can enter or pass through the rectangular lattice frame with a height of two or more paper tubes while standing, making it an ideal play form. By diversifying the activities, children's intellectual and physical education can be effectively achieved. It goes without saying that according to the present invention, in addition to being able to pass through the front and back, it is also possible to pass through the top.

Due to the elastic contraction of the paper tube fitted to the leg, the inner diameter of the paper tube becomes smaller than the maximum diameter of the expanded diameter section on the proximal end side of the leg compared to the expanded diameter section, so that the paper tube fits into the tip of the leg. It is possible to reliably prevent sliding in any direction. In addition, the leg is formed into a cylindrical shape, and the enlarged diameter part formed on the outer circumferential surface is formed around the entire circumference of the leg, so the entire inner circumferential surface of the paper tube comes into contact with the leg, and the load can be applied over a wide range. This prevents the paper tube from being compressed locally, preventing the paper tube from becoming non-circular or reducing the wall thickness in some areas, and preventing the paper tube from escaping from the joint. This can prevent the paper tube from breaking.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an indoor joint gym according to a specific embodiment of the present invention, FIG. 2 is an exploded perspective view showing an example of its assembly procedure, FIG. 3 is a perspective view of the four-leg intermediate joint, and FIG. Figure 5 is a perspective view of the 5-leg intermediate joint, Figure 5 is a perspective view of the 6-leg intermediate joint, Figure 6 is a perspective view of the 6-leg intermediate joint, Figure 7 is a perspective view of the conventional example, and Figure 8. FIG. 2 is an exploded perspective view showing an example of a conventional assembly procedure. 1... Young Gym, 2... Paper tube, 3...3
Leg end joint, 4...4 leg middle joint,
5...5 leg middle joint, 6...6 leg middle joint.

Claims (1)

[Scope of utility model registration request] A large number of cylindrical paper tubes 2 cut into predetermined lengths
and a large number of synthetic resin joints that connect these paper tubes 2 in a three-dimensional lattice pattern, including a 3-leg end joint 3, a 4-leg intermediate joint 4, a 5-leg intermediate joint 5, and a 6-leg intermediate joint 6. Joint 3, 4th leg intermediate joint 4, 5th leg intermediate joint 5, and 6th leg intermediate joint 6 at the ends of the 3 legs of the joint are shell-shaped connection center portions 3a, 4a, 5a, 6.
a, a leg that extends in at least one of the vertical directions from the connection center portions 3a, 4a, 5a, and 6a, and a leg that extends in at least one of the left and right directions from the connection center portions 3a, 4a, 5a, and 6a, and a connection. Center part 3a, 4
a, 5a, and 6a in at least one direction in the front and rear directions, each leg is formed into a cylindrical shape that fits inside the end of the paper tube 2, and the outer peripheral surface of each leg has a tip and a base end. In the middle of the paper tube, the diameter is gradually expanded from the distal end to the proximal end in at least one step until the diameter becomes slightly larger than the inner diameter of the paper tube, and then the diameter is reduced from the maximum diameter to the entire circumference. An indoor giant gym in which the connecting center portions 3a, 4a, 5a, and 6a are formed to protrude uniformly and continuously over the legs, and the outer surfaces of the connection center portions 3a, 4a, 5a, and 6a are formed to be continuous with the outer peripheral surface of the paper tube 2 fitted onto each leg. In,
At least two pieces of paper connected by a 3-leg end joint 3 or a 4-leg intermediate joint 4, a 5-leg intermediate joint 5, and a 6-leg intermediate joint 6, with both ends of a pair of paper tubes 2 connected to each other. This indoor gym is characterized in that a passageway 7 is provided by a rectangular lattice frame formed by connecting via a tube 2.