JPH06142249A - Ball storage device - Google Patents

Abstract

PURPOSE:To enable the height of an upper ball position to be kept at the predetermined level in a ball storage box for lessening a burden at the time of repeatedly taking out balls by making the bottom of the box capable of free elevation, and providing an energization means for energizing the bottom upward. CONSTITUTION:When many balls 3 are stored in a storage box 4, the bottom section 16 thereof is pushed down, due to the weight of the balls 3, against the energizing force of the spring 27 of an energization means 17. An elevator 18 is thereby lowered and the position of the upper balls 3 in the box 4 comes to a prescribed height. On the other hand, when a ball 3 is taken out from the box 4, the weight of the balls 3 in the box 4 is correspondingly reduced, and consequently the bottom section 16 rises due to the rising motion of the elevator 18 caused by the spring 27 of the means 17. The upper ball position in the box 4 is thereby kept at the prescribed level. Thus, the balls 3 can be taken out without any need of stooping and, therefore, the practice of a volleyball or the like can be effectively undertaken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for storing practice balls in volleyball practice and the like.

[0002]

2. Description of the Related Art In volleyball, when practicing to receive spikes, a coach takes out balls stored in a ball storage device one by one and spikes them toward a practitioner.

[0003]

By the way, if the balls are taken out one after another from the above-mentioned storage device, the position of the upper ball in the storage device becomes lower accordingly, and accordingly the coach bends his or her back to take out the balls. Is required. However, since this type of practice is repeated a considerable number of times, bending down as described above each time is not preferable because it imposes a great burden on the coach.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to reduce the burden of taking out balls repeatedly when taking them out from a ball storage device.

[0005]

To achieve the above object, the present invention is characterized in that a bottom of a storage box which stores balls and is supported by a support is movable up and down. The point is that a biasing means for biasing upward is provided. In the above structure, the storage box may be vertically expandable and contractable, and the upper part of the storage box may be fixed to the support base.

[0006]

[Operation] The operation of the above configuration is as follows. A bottom portion 16 of the storage box 4 that stores the balls 3 and is supported by the support base 2 can be moved up and down, and an urging means 17 that urges the bottom portion 16 upward is provided. Therefore, when a large amount of balls 3 are stored in the storage box 4 (two-dot chain line in FIG. 1, solid line in FIG. 5), the weight of these balls 3 resists the urging force of the urging means 17, and The bottom portion 16 is pushed down, and the position of the upper ball 3 in the storage box 4 becomes a predetermined height.

On the other hand, when the balls 3 are taken out from the storage box 4 in the above state, the weight of the balls 3 in the storage box 4 becomes lighter by that much, so that the bottom portion 16 is raised by the urging means 17. Also in this case, the position of the upper ball 3 in the storage box 4 is maintained at a predetermined height in this case as well. That is, regardless of the storage amount of the balls 3 in the storage box 4, the position of the upper ball 3 in the storage box 4 is maintained at a predetermined height, and therefore the ball 3 is not bent down when taken out. You can

In the above case, the storage box 4 may be vertically expandable and contractable, and the upper part of the storage box 4 may be fixed to the support base 2.
In this way, as described above, when a large amount of balls 3 are stored in the storage box 4 and the bottom portion 16 is pushed down by the weight thereof, the storage box 4 extends and the capacity increases. Therefore, even when a large amount of balls 3 are stored in the storage box 4 as described above, the balls 3 are prevented from rolling off the storage box 4.

When the balls 3 are taken out from the storage box 4, the bottom portion 16 rises as described above, and the balls 3 located at the bottom of the storage box 4 are pushed up to the top of the storage box 4. . Therefore, the balls 3 can be taken out of the storage box 4 without being obstructed by the upper portion of the storage box 4.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 3 show a first embodiment. Reference numeral 1 in the figure is a ball storage device used when practicing volleyball. Further, for convenience of description, the direction of the arrow Fr in the drawing is the front, and the left and right described below are the directions toward the front. This ball storage device 1
Is provided with a support base 2 and a storage box 4 which stores the ball 3 for volley and is supported by the support base 2.

The support base 2 has a rectangular shape that is long in the front and rear direction in plan view, and has four circular pipe-shaped support columns 6.
These columns 6 are fastened to each other by four upper beams 7 and lower beams 8 and fasteners 9 so as to be disassembled from each other. Each of the upper beams 7 is formed of a circular pipe, and each of the lower beams 8 is formed of a flat bar. Wheels 10 are detachably attached to the lower ends of the columns 6, that is, the support base 2 can freely move on the floor 11.

The storage box 4 is made of a flexible material such as cloth or net, and is vertically expandable and contractible. Storage box 4
Has an opening 13 at its upper end, and each opening edge 14 of the opening 13 is sewn with a bag. Each of these opening edges 14
Is removably fitted on each of the upper beams 7, whereby,
The upper part of the storage box 4 is fixed to each upper beam 7 which is the upper part of the support base 2. The bottom portion 16 of the storage box 4 is a free end, and the bottom portion 16 can be moved up and down due to the vertical stretchability of the storage box 4 described above.

A biasing means 17 is provided for biasing the bottom portion 16 upward. The urging means 17 has an elevating table 18 framed in a rectangular shape below the bottom portion 16. The lift 18 includes a pair of left and right main frames 20 and 20 that are located apart from each other, and a pair of front and rear connecting frames 2 that detachably connect the ends of the main frames 20 and 20 to each other.
1, 21 and fasteners 22, and both main frames 20, 2
The lateral width of 0 is smaller than the lateral width of the upper beams 7, 7. Further, three round bar-shaped bars 23 are installed between the respective middle portions of the main frames 20 and 20, and respective ends of the bars 23 are fitted into locking holes 24 formed in the main frame 20. The crosspiece 23 is detachably fitted so that the crosspiece 23 is attached to the main frame 2.
It is removably attached to 0 and 20.

Each end portion of each main frame 20 serves as a guide portion 26, and each guide portion 26 is slightly apart from each column 6 and projects forward and backward from each column 6. Then, when the lifting table 18 tends to roll greatly to the left and right, the main frame 20 comes into contact with the column 6 to prevent the main frame 20 from rolling. The biasing means 17 is 4
There are two springs 27, and these springs 27 are used for each upper beam 7 described above.
And is erected between the respective end portions of the main frame 20 corresponding thereto, and urges the lifting platform 18 upward. Then, the elevating table 18 that is raised by this urging urges the bottom portion 16 of the storage box 4 upward.

In the above structure, when a large amount of balls 3 are stored in the storage box 4 (two-dot chain line in FIG. 1, solid line in FIG. 5), the weight of these balls 3 causes the spring 2 of the urging means 17 to move.
The bottom portion 16 is pushed down against the urging force of 7, and the elevating table 18 is lowered accordingly, so that the position of the upper ball 3 in the storage box 4 becomes a predetermined height.

On the other hand, when the balls 3 are taken out from the storage box 4 in the above-mentioned state, the weight of the balls 3 in the storage box 4 becomes lighter by that much, so that the bottom portion 16 causes the spring 27 of the biasing means 17 to move. It is lifted by the lift table 18 that is lifted by, and the position of the upper ball 3 in the storage box 4 is maintained at a predetermined height.

That is, since the position of the upper ball 3 in the storage box 4 is maintained at a predetermined height regardless of the storage amount of the ball 3 in the storage box 4, the ball 3 can be taken out easily. You can do it without bending over.

In the above case, the storage box 4 can be vertically expanded and contracted. By doing so, as described above, a large amount of balls 3 are stored in the storage box 4, and the weight of the bottom 3 is stored in the bottom portion 16.
When is pushed down, the storage box 4 extends and the capacity increases. Therefore, even if a large amount of balls 3 are stored in the storage box 4 as described above, the balls 3
Is prevented from falling off from the storage box 4, that is, a sufficiently large number of balls 3 can be stored in the storage box 4.

When the ball 3 is taken out from the storage box 4, the bottom portion 16 rises as described above, and the ball 3 located at the bottom of the storage box 4 is pushed up to the upper part of the storage box 4. . Therefore, the balls 3 can be taken out of the storage box 4 without being obstructed by the upper portion of the storage box 4. The spring 27 may be provided so as to push up the lift 18 as shown by the alternate long and short dash line in FIG.

Further, although the above is based on the illustrated example, the storage box 4
May be made of, for example, sheet metal, and may be divided into upper and lower box portions, and the both may be slidably fitted in each other. In this case, the lower box portion may be integrated with the elevating table 18. The ball storage device 1 may be used for storing balls in baseball, soccer, and the like.

(Second Embodiment) FIG. 5 shows a second embodiment. According to this, the pillar 6 is divided into upper and lower pillars 29 and 30, and the upper pillar 29 and the lower pillar 30 are vertically slidably fitted to each other. A spring 27 constituting the biasing means 17 is inserted into the lower part of the lower support column 30. The spring 27 extends the storage box 4 including the bottom part thereof through the upper support column 29 and extends upward. Are urging. It should be noted that the lift table 18 shown in the above-described embodiment is not provided in this embodiment. Since other configurations and operations are almost the same as those in the first embodiment, common configurations are denoted by common reference numerals, and redundant description will be omitted.

[0022]

According to the present invention, the bottom portion of the storage box which stores the balls and is supported by the support base is movable up and down, and the urging means for urging the bottom portion upward is provided. . Therefore, when a large amount of balls are stored in the storage box, the weight of these balls resists the urging force of the urging means,
The bottom portion is pushed down, and the position of the upper ball in the storage box becomes a predetermined height.

On the other hand, when the balls are taken out from the storage box in the above state, the weight of the balls in the storage box becomes lighter by that much, so that the bottom portion is lifted by the urging means and the same as above. The position of the ball above is maintained at a predetermined height. That is, regardless of the amount of balls stored in the storage box, the position of the upper ball in the storage box is maintained at a predetermined height, so the ball can be taken out without bending down. Therefore, when the ball is repeatedly taken out from the ball storage device, the burden of taking out the ball is lightened, and the original practice in volleyball or the like can be effectively performed.

In the above case, the storage box may be vertically expandable and contractable, and the upper part of the storage box may be fixed to the support base. With this configuration, as described above, when a large amount of balls are stored in the storage box and the bottom portion is pushed down by the weight thereof, the storage box extends and the capacity increases. Therefore, even when a large amount of balls are stored in the storage box as described above, these balls are prevented from rolling off the storage box, that is, a sufficiently large number of balls are stored in the storage box. be able to.

When the ball is taken out from the storage box, the bottom portion rises as described above, and the ball located at the bottom of the storage box is pushed up to the upper portion of the storage box.
Therefore, the balls can be taken out of the storage box without being obstructed by the upper part of the storage box. Therefore, also in this respect, the ball can be taken out easily, and the burden of taking out the ball can be reduced.

[Brief description of drawings]

FIG. 1 is an overall side view of the first embodiment.

FIG. 2 is an overall plan view of the first embodiment.

FIG. 3 is a partially exploded perspective view of the ball storage device according to the first embodiment.

FIG. 4 is an overall side view of the second embodiment.

[Explanation of symbols]

 1 Ball Storage Device 2 Support 3 Ball 4 Storage Box 16 Bottom 17 Energizing Means 27 Spring

Claims (2)

[Claims] 1. A ball storage device comprising a support base and a storage box which stores balls and is supported by the support base, wherein the bottom of the storage box is made movable up and down and the bottom is directed upward. A ball storage device provided with a biasing means for biasing the ball. 2. The ball storage device according to claim 1, wherein the storage box is vertically expandable and contractable, and an upper portion of the storage box is fixed to a support base.