JPH0683865U - Simple building for baseball practice - Google Patents

Abstract

(57) [Summary] [Purpose] When the main frames that compose a building can be brought into and out of contact with each other so that this building can be stored compactly, sufficient rigidity is ensured in the building, Further, even in such a case, the main purpose is to enable the structure of the building to be simple and allow the main frame to be brought into and out of contact with each other with a light work. [Structure] A plurality of main frames 2 having a gate shape in a front view are provided in front and rear rows. A pair of connecting frames 14, 14 that intersect in an X shape in a side view are provided between the leg portions 6 of the main frames 2 that are adjacent to each other before and after. Both of these connecting frames 14, 1
Pivot 4 together at their intersection. Same as above, the lower ends of the respective connecting frames 14, 14 are pivotally supported on the lower end side of the leg portion 6 corresponding thereto. An elevating body 26 is provided which is fitted to each leg 6 so as to be able to move up and down. Each upper end of the connecting frame 14 is pivotally supported by the corresponding lifting body 26 so that the main frames 2 can be moved back and forth with respect to each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simple baseball practice building used when performing indoor pitching and hitting practice indoors, such as in rainy weather.

[0002]

[Prior art]

 Conventionally, the above-mentioned simple building for baseball practice is generally configured as follows. That is, a plurality of gate-shaped frames in a front view are provided in a line, and a waterproof external sheet is provided to cover these frames from the outside.

The inside of the building is an indoor practice area for baseball, which is used in rainy weather.

In the above structure, since the building is large in shape, this may be an obstacle when the building is not used, such as when practicing outdoors.

Therefore, it is conceivable that the main frames can be brought into contact with and separated from each other in the front-rear direction so that when not in use, the respective main frames are superposed in the front-rear direction and can be compactly stored.

[0006]

[Problems to be solved by the device]

 However, when the above-mentioned main frames are separated from each other and the indoor practice field is molded inside the main frames, the connection strength between the main frames is reduced due to the distance between the main frames. May not be able to secure the rigidity of.

Therefore, it is conceivable to provide a reinforcing material to the connection between the main frames to improve the connection strength. However, this makes the structure of the building complicated and separates the main frames from each other. May be a heavy task.

[0008]

[The purpose of the device]

 The present invention was made in view of the above circumstances, and when a plurality of main frames constituting a building can be connected to and separated from each other so that the building can be stored compactly, The main purpose is to ensure sufficient rigidity, and even in such a case, the structure of the building is simple and the main frame can be connected and disconnected with ease. To do.

[0009]

[Means for Solving the Problems]

 The feature of the present invention for achieving the above-mentioned object is that a plurality of main frames having a gate shape in front view are provided in front and rear rows, and the main frames are covered with an external sheet from the outside. In a simple building for use, a pair of connecting frames that intersect in an X shape in a side view are provided between the legs of the main frames that are adjacent to each other in the front and rear, and these connecting frames are connected to each other by a pivot shaft at the intersections. The same as above, each lower end of each connecting frame is pivotally supported to the lower end side of the corresponding leg portion, and an elevating body is provided to be fitted vertically to each leg portion, and each upper end of the connecting frame is provided. Is supported by the corresponding lifting body, and the main frames can be moved back and forth with respect to each other.

In the above case, a pair of bracket plates sandwiching the legs from the left and right, and a pair of rollers arranged at the front and rear of the same leg and supported by the left and right bracket plates constitute an elevating body. Each roller may roll up and down on the outer surface of the leg portion when the elevator body moves up and down.

Further, each roller may be made of a cushioning material.

[0012]

[Work]

 The operation of the above configuration is as follows.

The terms in parentheses below correspond to the terms in the claims for utility model registration.

In a simple baseball practice building 1 in which a plurality of main frames 2 having a gate shape in front view are provided in a front and rear row, and the main frames 2 are covered with an external sheet 3 from the outside, the front and rear sides are adjacent to each other. Between the legs 6 of the main frame 2, there are provided a pair of connecting frames 14 and 14 that intersect in an X shape in a side view, and these connecting frames 14 and 14 are connected to each other at a first pivot shaft (pivot shaft). ) 15 for pivotally supporting each other, and each lower end of each of the connecting frames 14, 14 pivotally supported on the lower end side of the corresponding leg portion 6 corresponding thereto, and an ascending / descending body which is fitted to each leg portion 6 so as to be vertically movable. 26 are provided, and the upper ends of the connecting frames 14 are pivotally supported by the corresponding elevators 26, so that the main frames 2 can be moved back and forth with respect to each other.

Therefore, when the building 1 is not used, or when the building 1 is to be stored, it is sufficient to bring the main frames 2 close to each other. In this way, the lifting bodies can be moved along the legs 6. 26 rises, the pair of connecting frames 14, 14 between the main frames 2, 2 becomes a vertically long X-shape, and the main frame 2 and the connecting frame 14 are superposed in the front-rear direction.

On the other hand, when the building 1 is used as a training field 4, the main frames 2 may be separated from each other (shown by a chain line in FIG. 1), and in this way, the space between the main frames 2 may be separated from each other. The pair of connecting frames 14 and 14 have a horizontally long X-shape, and the main frames 2 and the connecting frames 14 form a truss structure as a whole.

In the above case, a pair of bracket plates 27, 27 sandwiching the leg part 6 from the left and right, and a pair of rollers 28 arranged in front of and behind the upper leg part 6 and supported by the left and right bracket plates 27, 27. , 28 may constitute an elevating body 26, and when the elevating body 26 moves up and down, the rollers 28, 28 described above may roll up and down on the outer surface of the leg portion 6.

With this configuration, when the main frames 2 and 2 are brought into contact with and separated from each other, the elevating body 26 can be easily moved up and down along the leg portions 6.

Further, each of the rollers 28 may be made of a cushioning material.

In this way, when the main frames 2 and 2 are brought into contact with and separated from each other, the impact given to the main frame 2 from the floor 12 or the like is absorbed by the roller 28.

Further, even if the ball 39 collides with the main frame 2 and the connecting frame 14 during the hitting practice in the building 1, this impact is also absorbed by the rollers 28.

[0022]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a building for baseball practice, and for convenience of explanation, the direction of an arrow Fr in the figure is the front. Further, the right and left described below means the direction toward the front.

The building 1 has a plurality of main frames 2 having a gate shape in a front view (FIG. 2), and the main frames 2 are arranged in a line at equal intervals in the front and rear. In addition, an external sheet 3 that covers the main frames 2 from the outside is provided. The inner space of each of the main frames 2 is an indoor practice field 4 for baseball, and the practice field 4 is covered with the outer sheet 3.

Each of the main frames 2 has a pair of left and right vertically oriented leg portions 6, and a gable-shaped roof portion 7 is erected between the upper ends of the left and right leg portions 6 and 6, respectively. The frame 2 itself has rigidity.

Each of the main frames 2 is formed by a circular pipe, and is cut at appropriate positions in the longitudinal direction thereof so that the main frame 2 can be disassembled and assembled. That is, one of the two cutting ends 8 and 8 has a connecting shaft 9 projecting from it, and the protruding end of the connecting shaft 9 has the other cutting end 8 removably fitted thereinto. Both cutting ends 8 and 8 are detachably connected to each other by 10. Wheels 11 are attached to the lower ends of the legs 6, and the main frames 2 are installed on the floor 12 via the wheels 11 so as to be movable back and forth.

A pair of connecting frames 14, 14 that intersect in an X shape in a side view are provided between the leg portions 6, 6 of the main frames 2, 2 that are adjacent to each other in the front-rear direction. Is made of angle material. Further, the two connecting frames 14 and 14 are pivotally supported by a first pivot shaft 15 at their intersections. The first pivot shaft 15 is composed of a bolt 17, a collar 18, and a nut 19.

The respective lower ends of the connecting frames 14, 14 are pivotally supported by the second pivot shaft 21 on the lower end side of the corresponding leg portion 6 corresponding thereto. The second pivot shaft 21 is composed of a bolt 22, a spacer 23, and a nut 24.

On the other hand, an elevating body 26 is provided which is fitted to each leg 6 so as to be able to elevate and lower. The elevating body 26 includes a pair of bracket plates 27, 27 sandwiching the leg portion 6 from the left and right, and a pair of rollers 28, 28 arranged in front of and behind the upper leg portion 6. Each of these rollers 28 is fitted onto a rivet shaft 29 mounted on the left and right bracket plates 27, 27, and is freely rotatable around the axis of the rivet shaft 29.

In the above case, a peripheral groove 30 having an arcuate cross section is formed on the outer peripheral surface of each roller 28. The peripheral groove 30 is fitted to the outer peripheral surface of the leg portion 6 and is lightly pressure-contacted, As a result, in plan view, the positioning of each roller 28 with respect to the leg portion 6 is accurately performed without rattling. When the elevating body 26 moves up and down along the legs 6, the rollers 28 described above lightly roll up and down on the outer peripheral surface of the legs 6. Each of the rollers 28 is made of resin or rubber and is formed of a cushioning material having elasticity.

Each upper end of the connecting frame 14 is pivotally supported on the corresponding elevator body 26 by a third pivot shaft 32. The third pivot 32 is composed of a bolt 33 protruding from the bracket plate 27 and a nut 34.

The outer sheet 3 has a double structure including a breathable net sheet 36 and a waterproof sheet 37 that covers the net sheet 36 from the outside.

The mesh sheet 36 has sufficient flexibility, and each part is detachably connected to each main frame 2 by a connecting tool such as a rope.

The waterproof sheet 37 is formed of a transparent vinyl sheet, a tent or the like, and the waterproof sheet 37 is detachably attached to the outer surface of the net sheet 36. The net sheet 36 also functions as a guide when the waterproof sheet 37 is attached.

The outer sheet 3 may be composed of only one of the net sheet 36 and the waterproof sheet 37.

Inside the respective main frames 2, an inner seat 38 having a gate shape in a front view is provided. The inner sheet 38 is made of net, non-woven fabric, resin sheet or the like, and has sufficient flexibility.

The outer edge of the inner sheet 38 is attached to the main frame 2 by a connecting tool such as a band. The inner edge of the inner sheet 38 is a free end extending toward the inner side of the main frame 2.

The waterproof sheet 37 protects the practice field 4 from rain, wind, and snow, and also keeps the temperature inside the practice field 4 so that the user can practice in all weather conditions.

On the other hand, regardless of the presence or absence of the waterproof sheet 37, the net sheet 13 prevents the ball 39 that is hit and flies during practice from freely flying outside.

Further, as described above, since the internal sheets 38 having a gate shape in a front view are provided inside the main frames 2, respectively, in the front-rear direction of each main frame 2, from the front-rear end side to the other end inside the building 1. When viewed from the side, each main frame 2 is covered by each inner sheet 38.

Therefore, when the ball 39 that is thrown or hit from the front end side to the rear end side inside the building 1 is about to collide with the main frame 2, before this, The ball 39 collides against the free end side of the inner sheet 38 on the inner edge side and is buffered, so that the ball 39 is prevented from colliding with the main frame 2 and bouncing back.

Further, as described above, since the inner seats 38 having a gate shape in front view are provided inside the respective main frames 2, the outer seats 3 between the respective main frames 2 are also covered by the respective inner seats 38. Will be seen.

Therefore, when the ball 39 that has been thrown or hit inside the building 1 as described above is about to collide with the outer seat 3, this ball 39 precedes the inner seat. The inner edge of 38 collides against the free end side and is buffered.

As a result, the ball 39 is prevented from colliding with the outer sheet 3 and giving a large impact thereto.

In the above case, since the impact from the sphere 39 is buffered by the inner sheet 38, the outer sheet 3 does not need to have a very large strength, and is therefore lightweight. Each main frame 2 that supports the outer seat 3 is also made lightweight.

When the building 1 is to be stored, such as when it is not used, each main frame 2 is rolled while rolling each wheel 11 on the floor 12 and bending the outer seat 3. Should be brought close to each other (the solid line in FIG. 2 shows the way in which the main frames 2 are brought into contact with and separated from each other), and in this way, the lifting bodies 26 ascend along the legs 6, The pair of connecting frames 14, 14 between the main frames 2, 2 have a vertically long X-shape, and the main frame 2 and the connecting frame 14 are superposed in the front and rear. In this way, the building 1 is compactly stored.

On the other hand, when the building 1 is used as the practice field 4, the main frames 2 may be separated from each other (shown by the one-dot chain line in FIG. 1). The pair of connecting frames 14 and 14 have a horizontally long X-shape, and the main frames 2 and the connecting frames 14 form a truss structure as a whole.

In the above case, when the main frames 2 and 2 are brought into contact with and separated from each other, the elevator body 26 moves up and down while the rollers 28 and 28 thereof roll on the outer surface of the leg portions 6, respectively. The contact and separation of 2 and 2 are done lightly.

Further, since each roller 28 is made of a cushioning material, the impact given to the main frame 2 from the floor 12 or the like when the main frames 2 and 2 are brought into contact with or separated from each other is not affected by the above-mentioned rollers 28. The work of connecting and disconnecting is light and quiet.

Further, even if the ball 39 collides with the main frame 2 or the connecting frame 14 during the hitting practice in the building 1, this impact is also absorbed by the rollers 28.

[0051]

[Effect of device]

 According to this invention, a plurality of main frames that are gate-shaped in front view are provided in a row in the front and back, and in a simple baseball practice building in which the main frames are covered with external sheets from the outside, each main Between the legs of the frame, a pair of connecting frames that intersect in an X shape in side view are provided, and both connecting frames are pivotally supported at the intersections by a pivot shaft. Corresponding to this, there is provided an elevating body pivotally supported on the lower end side of the leg portion, and vertically fitted to each leg portion, and each upper end of the connecting frame is pivotally supported on the corresponding elevating body. Thus, the main frames can be moved back and forth with respect to each other.

Therefore, when it is desired to store the building, such as when the building is not used, it is sufficient to bring the main frames close to each other. In this way, the lifting bodies are raised along the legs. The pair of connecting frames between the main frames are in a vertically long X shape, and the main frames and the connecting frames are superposed on each other in the front-rear direction. Therefore, the building can be stored compactly.

On the other hand, when the building is used as a practice field, the main frames may be separated from each other, and in this way, the pair of connecting frames between the main frames have a horizontally long X shape. The main frames and the connecting frames have a trust structure as a whole.

Therefore, the connection strength of these main frames is improved, and the rigidity of the building is improved.

Further, as described above, each main frame and each connecting frame have a truss structure as a whole, and since this has a simple structure, the structure composed of them also has a simple structure. Becomes

In the above case, a pair of bracket plates sandwiching the legs from the left and right, and a pair of rollers arranged in front of and behind the upper legs and supported by the left and right bracket plates constitute an elevating body. Each roller may roll up and down on the outer surface of the leg portion when the elevator body moves up and down.

With this configuration, when the main frames are brought into contact with and separated from each other, the lifting body can be easily moved up and down along the legs.

Therefore, the main frames can be brought into and out of contact with each other with a light work.

Further, each of the rollers may be made of a cushioning material.

With this configuration, when the main frames are brought into contact with or separated from each other, the impact applied to the main frame from the floor or the like is absorbed by the rollers, and in this respect also, the work of the contact and separation can be lightened. , It will be possible to be quiet again.

Further, even if the ball collides with the main frame or the connecting frame during the hitting practice in the building, this impact is also absorbed by the rollers, so that a collision noise is generated in the building. Suppressed.

[Brief description of drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall front view.

3 is a sectional view taken along the line 3-3 of FIG.

[Explanation of symbols]

 1 Building 2 Main Frame 3 External Seat 4 Practice Field 6 Legs 12 Floor 14 Connecting Frame 15 First Pivot Axis (Pivot Axis) 26 Elevator 27 Bracket Plate 28 Roller 30 Circumferential Groove 39 Ball

Claims (3)

[Scope of utility model registration request] 1. A simple baseball practice building in which a plurality of main frames having a gate shape in front view are provided in a front and rear row, and the main frames are covered with an external sheet from the outside of the main frames adjacent to each other in front and behind. X between legs
A pair of connecting frames intersecting in a letter shape is provided, and both connecting frames are pivotally supported at the intersection by a pivot shaft,
Same as above, each lower end of each connecting frame is pivotally supported on the lower end side of the corresponding leg portion, and an elevating body that is fitted to each leg portion so as to be able to move up and down is provided, and each upper end of the connecting frame corresponds to this. A simple baseball practice building in which each of the main frames can be moved back and forth with respect to each other by being pivotally supported by the lifting body. 2. An elevating body is constituted by a pair of bracket plates sandwiching the leg portions from the left and right, and a pair of rollers arranged in front of and behind the upper leg portions and supported by the left and right bracket plates. The simple baseball practice building according to claim 1, wherein each roller is adapted to roll up and down on the outer surface of the leg portion when moving up and down. 3. The simple baseball practice building according to claim 2, wherein each roller is made of a cushioning material.