JP2001353250A - Stay and net apparatus for ball game - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stay and net apparatus mainly used for indoor ball games. SOLUTION: One free wheel 16 is provided at the front of a table 10 and a pair of fixed wheels 12, 12 are provided at the back to form a hand movable table 10, the stay is journalled to the front part to be laid down by a shaft 14, and the rear part is loaded with a weight 11. A leg part 15a is connected to the lower end part of the stay 15 for stretching a net 19 like an inverted T-shape and disposed parallel to the weight 11. When the stay 15 is raised and laid down, the leg part 15a floats up from the floor surface F, and when it is raised, the leg part 15a comes into contact with the leg part 15a so that the free wheel 16 floats up from the floor surface F. The net 19 has the stay 15 and connecting parts 20, 21 put on an inner pipe 17 or wound round it, to thereby facilitate attach and remove the net to and from the stay 15 or an inner pipe 15a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a net and a net device used in combination with a net used in ball games such as badminton, soft valley mini, Indiana, and soft valley, and a combination of the nets.

[0002]

2. Description of the Related Art Nets are required for ball games such as badminton, soft valley mini, Indiana, and soft valley. However, permanent installation of nets in gymnasiums and other rooms interferes with other sports. A pair of movable stanchions for stretching is used.

As shown in FIGS. 14 to 16, this support base 6 has a support 1 having a substantially triangular plan shape, a support 2 standing upright at a front portion, a weight 3 fixed at a rear portion, and The two wheels 4 and 4 project rearward from the rear and are pivotally supported, and the table 1 is fixed in contact with the floor F so that the column 2 does not fall.

The column 2 has an outer tube having a predetermined length, and an inner tube 5 which accommodates an inner tube 5 extending axially so as to be adjustable in height. This height adjustment is performed by drilling through holes that match each other in the inner tube 5 and the column 2, pulling out the inner tube 5 from the column 2, and passing a pin through the matching through hole. A chain of a required length is hung near the upper end and is always attached to the column 2.

[0005] A pair of the support bases 6 and 6 are appropriately spaced and opposed to each other, the inner tubes 5 and 5 are pulled out to an appropriate height, and a net 7 is stretched over them. By the way, the net height a (15
50mm) is for badminton, net height b (1800)
mm) is for Soft Valley Mini, net height c (1850)
mm) for Indiaka and net height d (2000m
m) is for soft valley.

The net 7 has a rope or the like fixed to the upper side and extends from both ends by an appropriate length. The rope is hung on an engaging portion such as a concave portion formed at the top of the inner tube 5, and is attached to the inner tube 5. It is pulled downward along and hooked on a hook 8a protruding from the collar 8 at the upper part of the column 2 to be fixed. The collar 8 is fixed to the column 2 so as to be changeable in position by a wing bolt 8b. In addition, a string is attached to both ends on the lower side of the net 7 at a predetermined length, and the string is connected to the inner tube 5 or the support 2 to complete the mounting of the net 7.

When the support 6 from which the net 7 has been removed is to be moved for storage, the wheels 4 are brought into contact with the floor F by lowering the support 2 as shown in FIG. The table 1 can be moved and retracted by its wheels 4, 4 by pushing or pulling the columns 2.

[0008]

However, since the platform 1 is provided with only a pair of wheels 4 and 4 that do not touch the floor during the game, the operation of moving the platform 1 by pushing or pulling the column 2 is as follows. It is as if operating a work unicycle (cat wheel) at a construction site etc.,
Those who have not mastered the procedure will have trouble moving.

In particular, for the operation until the support column 2 is lowered and the wheels 4 and 4 come into contact with the floor surface F, the table 1 is used on the wheels 4 and 4 side.
It is necessary to stop the rear part of the platform with feet or the like.
May move.

[0010] Then, when the feet are attached to the base 1, the wheels 4,
Injured by step 4. If the support 2 is inadvertently released while the support 1 is moved by pushing or pulling the support 2, the support 1 falls down forward or backward, and damages people and objects in the vicinity. There is a high possibility that such a defect will occur.

[0011]

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, the present invention is intended to solve the above-mentioned problem, and for this purpose, one free vehicle is provided at the front and one free vehicle is provided at the rear. Has two fixed wheels, is mounted on a movable platform, and a column is fixed to the front part so that it can fall down and a weight is fixed to the rear part.The column is stored coaxially so that the inner pipe can be adjusted in height. And
In addition, the inner pipe is engaged with connecting portions formed in multiple stages in the height direction at both ends of the net, and the net is detachably stretched to the post to provide a ball game support and a net device. provide.

[0012] The strut can be erected by the force of the stored energy when the erection is carried out by projecting an ammunition in the vicinity of the lower end of the strut and the front part of the base. The prop is held upright without swinging, and when the arm falls down, the crossing angle between the armature and the strut becomes steep, so that the strut swings in balance without the force of the ammunition acting. Is held without.

Further, if a plate-like leg which is in contact with the floor is attached to the lower end of the column in an inverted T-shape, the contact area of the column is increased and the stability of the fixed state is improved.

[0014] Further, the connecting portion of the net to the supporting column has an elastic material interposed between the end and the base, and a tape having male and female hooks is sewn to the end and the base.
Alternatively, the uppermost connecting portion of the net has an advantage that the upper portion of the inner tube is closed so that the uppermost end of the inner tube does not penetrate so that the net can be easily attached to the inner tube or the column.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 to FIG.
A weight 11 having a predetermined weight is fixedly disposed at the rear portion of the base 10, and fixed wheels 12, 12 are rotatably fixedly supported on the lower surface side of the weight 11.

The front portion 10a of the base 10 has a substantially T-shaped planar shape formed by welding a square pipe material to the rear portion 10b. Brackets 13, 13 are provided at the front end portions thereof. A column 15 is rotatably mounted via a shaft 14. In addition, a free wheel 16 such as a caster is disposed near the front end on the lower surface of the front portion 10a.

The column 15 is composed of an outer tube coaxially housed so that the inner tube 17 can expand and contract, and has a through hole for adjusting the height thereof, and a pin 15b suspended by a chain 15c.
Is the same as the conventional example. Therefore, the height of the net commonly used for ball games such as badminton, soft valley mini, Indiana, and soft valley can be pasted.

At the lower end of the column 15, a thin plate-like leg 15a is provided.
Are connected in an inverted T-shape.
0b, and can be in full contact with the floor surface F. Both ends of the leg 15a are covered with caps or the like made of an appropriate synthetic resin, and a colored tape is stuck on the upper surface.

One end of a spring 18 such as a spring is fixed inside the front portion 10a, and the other end of the spring 18 is fixed near the lower end of the column 15. The ammunition 18 constantly urges the column 15 to rotate clockwise around the shaft 14 in the drawing.

When the column 15 is upright, the leg 15a has a length extending below the free wheel 16. Therefore, as shown in FIG. 1 and FIG.
In a state in which the upright 5 is upright, the legs 15a of the columns 15 come into contact with the floor F, and the free wheel 16 floats from the floor F.

A pair of the support bases 9 and 9 are appropriately separated and opposed to each other, the inner pipes 17 and 17 are pulled out to an appropriate height, fixed with pins 15b, and a net 19 is stretched over them.
Incidentally, the support height e is 1150 mm, and the inner pipe 17 in the support is provided.
The height f of the ball is 1200 mm. Therefore, the net height of the desired ball game is set within the range of the net height d for soft valley to the height f of the inner tube by inserting and removing the pin 15b from the through hole. .

Then, as shown in FIGS. 4 and 5, when the support 15 is erected (indicated by an arrow A) and its leg 15a comes into contact with the floor surface F, the base 10 is moved around the fixed wheels 12, 12 as shown in FIG. The front part floats at a predetermined height h by rotating in the indicated direction. In this case, the weight of the base 10 on which the weight 11 is placed can be lifted lightly by the leverage principle. As a result, the base 10 cannot be easily moved due to the resistance of the leg 15a contacting the floor F and the weight of the weight 11.

Also, as shown in FIG. 5 to FIG.
5 is gripped by hand and the support 15 is rotated around the shaft 14 in the direction indicated by the arrow C in the direction of arrow C against the force of the ammunition 18.
5 can fall on the platform 10.

The pillar 15 that has laid down extends and accumulates the ammunition 18, but the crossing angle between the axis of the ammunition 18 and the pillar 15 becomes steep, and the gravity of the strut 15 and the force of the ammunition 18 are balanced. In order to maintain this state, the support column 15 does not stand up carelessly unless it is raised by a human hand.

When the column 15 is turned down, as shown in FIG. 4, the leg 15a is separated from the floor F, so that the base 10 is turned around the fixed wheel 12 in the direction indicated by the arrow and the free wheel 16 is moved. The base 10 comes into contact with the floor surface F and can easily move in combination with the fixed wheels 12 and 12. Then, by pushing or pulling the tip of the support column 15 and moving the table 10 while steering with the free wheel 16, it is possible to move to the installation location or the storage location.

On the other hand, the posts 15, 15 or the inner tubes 17, 17
As shown in FIG. 6, connecting portions 20, 21, and 21 are provided at both ends of the net 19 to be stretched. As shown in FIGS. 7 and 8, the connecting portion 20 is formed by sewn both ends of the white belt 22 on the upper side of the net 19 as shown in FIG. In the part, two pieces of elastic material such as a rectangular rubber cloth are folded in two, and they are superimposed on the inside and outside, and sewn in a bag shape with the upper part closed and the lower part opened. Therefore, the connecting portion 2
0 is attached to the top end of the inner tube 15a.

Further, as shown in FIG.
A base cloth 24 of a tape having male and female hooks such as a magic tape (registered trademark) having a predetermined width is sewn to the edge bands 23 on both sides of the net 19, and an elastic cloth 25 such as a rubber cloth having a predetermined width is sewn to the base cloth 24. Sew them together and connect them with an elastic cloth 2
5 is sewn with a tape end cloth 26 having male and female hooks such as a magic tape of a predetermined width. Therefore,
The connecting portion 21 is wound around the column 15 or the inner tube 17, and the end cloth 25 is joined to the base cloth 23 and attached.

It is to be noted that a soft cover is attached to the base 10 to prevent the appearance from being exposed, and also to prevent inadvertent contact with a person and injury. As shown in FIGS. 10 to 13, the base cover 30 is a substantially trapezoidal box that covers the upper part of the base 10, and has a U-shape in the upper bottom part that covers the bracket 13 and the support 15. Is connected openably and closably.

The pedestal cover 30 is formed by sewing a sewing machine by aligning a polyethylene cloth on a polyurethane chip, and sewing the sewing machine by folding the hem. The front cover 31 that covers the bracket 13 has a fastener 32 with male and female hooks such as Velcro for closing after mounting.

In order to prevent the pin 15b from coming off when the height of the inner tube 17 is adjusted, a rectangular pin cover 33 that can be wound around the column 15 is formed. At both ends in the longitudinal direction of the pin cover 33, a tape fastener 3 having male and female hooks such as magic tape having a predetermined width is used.
4 is attached. Therefore, the pin 15 having the through hole
The pin cover 33 is wound around the column 15 so as to surround b.

In this way, the platform 10 can be steered by the column 15 and run on the floor F with the free wheel 16 and the fixed vehicles 12, 12, and can be moved lightly. Since the leg 15a comes into contact with the floor F by standing up, the free base 16 can be lifted off the floor F to make it impossible to move the table 10, so that the indoor ball game in a gymnasium or the like can be performed. Very effective to use for

[0032]

According to the present invention described above, one free wheel is provided at the front and two fixed wheels are provided at the rear, and the column is pivotably supported on the table with improved running and steerability. When the prop is raised, its legs contact the floor and at the same time lift the free car from the floor to stably fix the table to the floor, and when the prop is lowered, the free car contacts the floor Since the table is made to be in a running and steerable state, the handling operation is extremely simple and safe, so that it is highly effective when used in indoor ball games such as a gymnasium. In addition, the net can be mounted by a simple operation such that the connecting portion is crowned or wound around the column or the inner tube, and the net can be easily removed, so that the operation of mounting or removing the net is quick and simple.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a support base of the present invention.

FIG. 3 is a front view showing the support base of the present invention.

FIG. 4 is a front view showing a movable state of a support base.

FIG. 5 is a front view showing a fixed state of the support base.

FIG. 6 is a front view of the net of the present invention.

FIG. 7 is an enlarged front view of a main part of the net.

8 is an enlarged perspective view of a part A in FIG. 6 or FIG. 7;

FIG. 9 is an enlarged side view of a portion B in FIG. 6;

FIG. 10 is a perspective view showing two soft covers of the present invention.

FIG. 11 is a plan view of a base cover.

FIG. 12 is a side view of the base cover.

FIG. 13 is a front view of the base cover.

FIG. 14 is a front view showing a conventional support base.

FIG. 15 is a side view of a conventional support base.

FIG. 16 is a plan view of a conventional support base.

FIG. 17 is a front view showing a moving state of a conventional support base.

[Explanation of symbols]

 F ... Floor surface 10 ... Stand 10a ... Front 10b ... Rear 11 ... Weight 12 ... Wheel 13 ... Bracket 14 ... Axle 15 ... Strut 15a ... Leg 16 DESCRIPTION OF SYMBOLS 21 ... Connecting part 22 ... White belt 23 ... Edge band 24 ... Base cloth 25 ... Elastic cloth 26 ... End cloth 30 ... Stand cover 31 ... Front cover 32, 34 ... Fastener 33 ... Pin cover

Claims (5)

[Claims] 1. A free wheel is provided at a front portion, a movable table having two fixed wheels is provided at a rear portion, and a support is pivotally mounted on a front portion so as to be able to fall down and a weight is provided at a rear portion. The post is fixed and the inner tube is coaxially housed so that the height can be adjusted, and the inner tube is engaged with connecting portions formed in multiple stages in the height direction at both ends of the net to support the net. A ball game support and a net device, which are detachably attached to the vehicle. 2. The ball post and net device according to claim 1, wherein a ballistic machine is mounted near the lower end of the column and at the front of the platform. 3. A ball game support and net device according to claim 1, wherein a plate-like leg in contact with the floor is attached to the lower end of the support in an inverted T-shape. 4. The connecting portion of the net is characterized in that a stretchable elastic material is interposed between the end and the base, and a tape having male and female hooks is sewn to the end and the base. The ball support and net device according to claim 1, 2, or 3, wherein 5. The ball game support according to claim 1, wherein the uppermost connection portion of the net is closed so that the uppermost end of the inner tube does not penetrate. Net device.