JP3115220B2 - Table tennis table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table tennis table, and more particularly to a portable table tennis table.

[0002]

2. Description of the Related Art Conventionally, a portable ping-pong table has been used for children, and comprises a pair of game boards formed of plywood and separate assembled wooden feet for supporting the game boards. .

[0003]

In the above-mentioned conventional ping-pong table, the plywood must be thickened in order to make the ping-pong balls bounce well on the game board surface. There is a contradictory problem that is unsuitable, and if it is thin, it will not play well and the fun will be reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a table tennis table that can be lightened to improve portability, and that can make ping-pong balls bounce well.

[0005]

In order to achieve the above object, the invention according to claim 1 comprises a pair of substantially square game board surfaces, and leg portions for horizontally holding the game board surfaces at a predetermined height. In the ping-pong table provided with, the game board surface is formed of resin and a lattice-like rib is formed on the back surface thereof, and the pair of game board surfaces are substantially perpendicular to the back side of the board surface from the edge. In addition to being formed in a shallow dish shape with extended side walls, the ends of adjacent side walls are connected by hinges at the time of a game so that they can rotate between an extended state and a bent state, and The height of the ribs on the back surface of the game board is reduced to form a storage section, and the ends of the U-shaped legs that fit within the game board surface are located on the back side of the game board surface and adjacent to each other. The other side near the edge is rotatably supported while the same To fit the part is a configuration of forming the leg portion housing portion that lower the ribs.

[0006] The invention according to claim 2 is based on claim 1.
Wherein the height of the ribs on the back surface of the game board is reduced to form a storage section. Further, the invention according to claim 3 is the invention according to claim 1 or claim 2.
In the ping-pong table according to the above, when the U-shaped legs are in a substantially vertical state, the first support piece is disposed diagonally between the plate surface and the vertical piece and cannot expand and contract, It is configured to include a second support piece that is arranged between the horizontal pieces and that cannot be expanded and contracted when the state is reached.

According to a fourth aspect of the present invention, there is provided the ping-pong table according to any one of the first to third aspects, wherein the horizontal piece of the U-shaped leg is provided with a rubber tubular sliding member. There is. The invention according to claim 5 is the table tennis table according to any one of claims 1 to 4, wherein the side walls connected by the hinges are formed with convex surfaces facing each other and abut against each other in an extended state. There is a configuration that can be used.

According to a sixth aspect of the present invention, in the ping-pong table according to any one of the first to fifth aspects, a bar can be inserted into the game board surface at a position closer to the outside than the side surfaces adjacent to each other. The support recess is formed, and the support recess is a bar that can be inserted at the lower end into a support hole formed facing the support recess, and has a net support that can support the net at the protruding upper portion.

[0009]

According to the first aspect of the present invention, a grid-like rib is formed on the back surface of the game board surface formed of resin, and the game board surface itself is formed of a thin plate. As a result, the ribs restrict the deflection of the game board surface so that the ping-pong balls bounce well. In addition, a pair of game board surfaces are formed in a shallow dish shape with side walls extending in a substantially vertical direction from the edge portions of the board surface to the back side of the board surface, and the ends of the adjacent side walls are connected by hinges at the time of the game. When the hinges are rotated to extend the pair of game boards, the game state is established, and when the hinges are rotated to cause the pair of game boards to bend, the side walls of each other are formed. The end faces face each other to form a thin box, and a small state suitable for carrying is provided while having an accommodation portion inside. And the U-shaped legs
Since the tip is rotatably supported with respect to the back side of the game board surface, by rotating the legs as necessary, it is accommodated in the back surface of the game board surface, Of the game board to support the game board. Here, the U-shaped legs are rotatably supported on the back surface near the edge opposite to the adjacent edge of the pair of game boards. Legs are erected to improve stability. Furthermore, the same leg part is formed on the back side of the game board surface in the leg storage part which is a concave part by lowering a rib according to the same leg part,
At the time of storage, it enters into the concave portion, so that the storage property is also good.

Further, in the invention according to claim 2 configured as described above, the height of the ribs on the back surface of the game plate is reduced, so that the game plate which is a shallow box is folded to form a box body. When the ribs are lowered, the ribs form a space. Further, in the invention according to claim 3 configured as described above, when the U-shaped leg is in a substantially vertical state, the first support piece that cannot be expanded or contracted is a plate surface and a vertical piece of the leg. And at the same time, the legs are held vertically, and in this state, a non-stretchable second support piece is disposed between the horizontal pieces of the legs, and the U-shaped Hold the legs so that the tips do not open or close.

Further, in the invention according to claim 4 constructed as described above, the rubber tubular sliding member provided on the horizontal piece of the U-shaped leg portion is inadvertently slid in contact with the floor surface. Not to be.

Further, in the invention according to claim 5 configured as described above, both side walls of the game board connected by the hinge are formed with convex surfaces facing each other, and the hinge is rotated. When the game board is set in the extended state, the convex surfaces abut against each other. Further, in the invention according to claim 6 configured as described above, the support recesses formed on the side surfaces face each other when the game board surfaces are made adjacent to each other to form support holes, so that one independent hole is formed. It is not necessary to form the support hole, and when the net support inserted in the support hole is pulled out, the diameter of the support hole is widened by simply opening the game boards a little, so that the game board can be easily removed.

[0013]

As described above, the present invention can provide a ping-pong table that can provide the following effects. First, since the ping-pong ball is made to bounce well with the ribs on the back surface while making the game board thin with resin, it is possible to achieve both portability and fun. Next, when it is folded by a hinge, it becomes a box, and can be stored in a small size, so that it is more portable.

Further, the provision of the rotatable legs allows one-touch pull-out and preparation, and the storage portion can be easily formed only by reducing the height of the rib. Further, the legs can be supported at distant positions to improve stability. At this time, even if the rib of the storage part is lowered to reduce the overall thickness,
Since the U-shaped legs only lower the ribs at the peripheral portion of the game board surface, it is possible to prevent the game from being hindered. According to the second aspect of the present invention, the storage portion can be formed at the height of the rib. For example, accessories and tools do not have to be separately carried, and can be stored in an organized manner. Can also.

Further, according to the third aspect of the present invention,
In supporting the legs, the first support piece holds it vertically while the second support piece holds the tip of the leg so that it does not close or open, so the game board surface is extremely stably held Can be done. Further, according to the fourth aspect of the present invention, by disposing the rubber tubular sliding member on the horizontal piece of the U-shaped leg, the sliding can be easily performed. Further, according to the invention according to claim 5, a convex surface is formed on the side wall surfaces facing each other,
Since the convex surfaces are abutted against each other, the accuracy of the abutment can be increased as compared with the case where the abutment is performed on the entire surface.

Further, according to the invention of claim 6,
The net can be extremely easily stretched on the game board surface, the support pillar can be easily pulled out, and the wall does not have to be thick as in the case of independently forming holes.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a use state of a ping-pong table according to an embodiment of the present invention, FIG. 2 is a storage state, and FIG. 3 is a perspective view of a back surface of a game board. This portable ping-pong table 10 has a pair of square game boards 20 formed of resin, and a folding leg 30 that can be stored on the back of each game board 20.
And a hinge mechanism 40 for connecting the game boards 20 and 20. The hinge mechanism 40 rotates the game board 2
The use state in which 0, 20 is extended and the storage state in which the game boards 20, 20 are overlapped by being rotated by the hinge mechanism 40 can be taken.

As shown in FIG. 3, although the game board 20 itself is formed of a thin resin plate, a grid-like rib 21 is formed on the entire back surface. Although the ribs 21 are thin, the plate surface of the game board 20 does not bend, and the ping-pong ball can be easily bounced. In the present embodiment, the ribs 21 are so-called vertical and horizontal grids, but need not necessarily be vertical, and the ribs 2 that are connected to each other while extending substantially perpendicularly to the plate surface are provided.
It is sufficient if it is 1, and it may be a so-called honeycomb-like hexagonal lattice, a triangular lattice, etc.
It can be appropriately modified. In addition, the size of the grid does not need to be uniform, and may be partially rough or fine. Further, the height of the rib 21 does not need to be uniform, and may be partially increased or decreased. And this combination, namely
It is also possible to make the grid denser at the lower part of the rib 21 and roughen the grid at the higher part of the rib 21.

In the present embodiment, as described later,
The two game boards 20, 20 can face each other with their backs facing each other to be in a storage state, and the storage portion 22 is formed by the lowered portion of the rib 21. As shown in FIG.
Is a leg formed in a U-shape along the periphery along with a space for accessories consisting of a racket storage portion 22a corresponding to the shape of a racket and a ping-pong ball storage portion 22b corresponding to the shape of a ping-pong ball. And a storage section 22c. Of course, a storage portion corresponding to other accessories can be formed, or an extra general-purpose storage portion can be formed. If the density is the same, lowering the ribs 21 lowers the ease of bouncing of the ping-pong ball, and the racket storage portion 22a, which has a relatively large area, may be a portion that is difficult to bounce.
However, if the racket storage portion 22a is arranged on the back side of the net, even if it is a portion that is hard to bounce, the influence on the game is small.

The shape of the game board 20 is square in nature of a table tennis game, but it is not always necessary to follow the rules of pure table tennis. Also in the present embodiment, the size is reduced and the height of the plate surface of the game board 20 is also reduced. In some cases, the corners are rounded or the whole shape is rectangular without being limited to a square. Changes such as are also possible. The game board 20 is provided with a rib 21 on the entire back surface and a side wall 23 extending from the entire periphery to the back surface, and is formed in a so-called shallow dish shape. Then, they are connected by the hinge mechanism 40, and when folded, the respective side walls 23, 23 face each other to form a box, thereby forming a storage space. The leg 30 is, as described above, the game board 2
The main legs 31, 31 are housed on the back surface of the main board 0, are formed by bending an iron pipe into a U-shape, and are rotatably connected to the back surfaces of the game boards 20, 20, respectively. 3
It comprises a first support piece 32 and a second support piece 33 for reinforcing the first and the first support pieces 31.

The vertical pieces 31b and 31 are attached to both ends of the horizontal piece 31a.
The U-shaped main legs 31, 31 in which b are continuous are
It is bent slightly smaller than the game board 20 to such an extent that it enters the low U-shaped leg storage portion 22 c of the rib 21 formed on the back surface of the rib 21, and is opposite to the side provided with the hinge mechanism 40. It is connected rotatably on the side near the side.
On the other hand, the first support piece 32 rotatably connects the two strips 32a and 32b at one end, and rotatably connects the other end of one piece to the vertical piece 31b of the main leg 31. The other end of the piece is rotatably connected to the side wall 23 of the game board 20.

With such a configuration, FIGS.
As shown in FIG. 8, the main legs 31, 31 can be pulled out from the back surfaces of the game boards 20, 20, can be stored in the main leg storage portions 22c on the back surface, and as shown in FIG. When the leg 31 is substantially perpendicular to the game board 20, the strips 32a and 32b of the first support piece 32 are fixed to each other with a thumbscrew so that the first support piece 32 cannot expand or contract. The main leg 31 is held perpendicular to the game board 20.

In this embodiment, the main leg 31 is provided which can be stored. The leg 30 may be any type as long as it can hold at least the board surface of the game board 20 horizontally at a predetermined height. Or a detachable type. In addition, each game board 2 as a U-shape
Although the whole is supported by two main leg portions 31, 31 one by one at 0, 20, it is possible to use four legs or to support each game board 20 as appropriate. Deformable. In addition, the first support piece 32 only needs to be able to hold the main leg 31 vertically.
For example, one end of one strip is rotatably held with respect to the side wall of the game board 20, and the other end is a vertical piece 31 of the main leg 31.
b may be fixed with a thumbscrew. Of course, other fastening elements such as pins could be employed instead of these thumb screws. The U-shaped main leg 3
1 and 31 project downward at the most distant positions of the two game boards 20, 20, and the support points are widened and the stability is good.

The leg 30 employs a second support piece 33 together with the first support piece 32. As shown in FIG. 9, the second support piece 33 connects one end of a pair of strips 33a, 33b. The connecting portion is fixed with a thumbscrew in a state where the two strips 33a and 33b are extended while being rotatably connected, and furthermore, both ends are fixed to the horizontal pieces 31 of the main leg portions 31 and 31, respectively.
a, 31a is fixed with a thumbscrew. Strip 33a,
By fixing the connecting portion 33b with a thumbscrew, the second support pieces 33, 33 cannot be expanded or contracted.
By fixing between the ends of the main legs 31, 31, the ends of the main leg portions 31, 31 do not open or close,
It is stable even when large force is applied.

The second support piece 33 only needs to be able to prevent the leading ends of the main legs 31, 31 from opening and closing, and need not necessarily be formed of two strips 33a, 33b as in this embodiment. In addition, instead of connecting the centers of the horizontal pieces 31a and 31 to each other, the horizontal pieces 31a and 31 may be fixed in an X-shape in a square shape. The horizontal pieces 31a, 31a
As shown in FIG. 10, two rubber tubes 34 each of which has been sliced are attached to each of them, and the sliding between the floor surface and the horizontal piece 31a is performed. In the present embodiment, the shape is a rubber tube, but any shape may be used as long as a slipping effect can be expected. However, since the rubber tube itself is easily available and can be attached simply by passing through, it is highly effective as a simple method.

The two game boards 20, 20 are connected by a hinge mechanism 40. The hinge mechanism 40 connects the side walls 23, 23 on both sides of the game boards 20, 20 so as to be rotatable. Side hinges 41, 41 shown in FIGS.
And a central hinge 42 shown in FIGS. 14 and 15 which is rotatably connected between the central portions of the game boards 20, 20. Each of the hinges 41 and 42 is screwed and fixed so that the side wall 23 is sandwiched between the hinge plate 41 and the abutment plate 43 having a female screw hole, so that the hinges 41 and 42 are not easily damaged even when formed in a thin plate shape. Has become.

In the present embodiment, these side hinges 41, center hinges 42, and abutment plate 43 are used.
Needless to say, any other hinge mechanism can be adopted as long as the game boards 20, 20 are rotatably supported. By the way, as shown in FIG. 16 and FIG. 17, a convex surface 24 protruding from the side surface of the side wall 23 is formed on the adjacent pieces of the game boards 20, 20 facing each other with the hinge mechanism 40. , 20 are brought into an extended state, so that the convex surfaces 24, 24 abut against each other. In order to hold the pair of gaming boards 20 horizontally, it is necessary to prevent the adjacent pieces from opening at 180 degrees or more when opened by the hinge mechanism 40. At this time, the side walls 23 abut against each other. However, if the convex surfaces 24 are formed in this way, the strength of the portion is increased, the durability is improved, and the accuracy of the entire surface is improved in adjusting the angle. Is difficult, but it is relatively easy to improve the accuracy of the partial surface, and there is an effect that the manufacturing is easy. Needless to say, the convex surface 24 is not necessarily required, and even if the convex surface 24 is formed, it may not necessarily be a flat surface but a curved surface, or may be made to mesh with irregularities as long as it has a structure that abuts each other.

Semi-circular grooves 25a, 25a are formed at both ends of the side wall 23 on which the convex surface 24 is formed.
As shown in FIG. 7, when the game boards 20, 20 are extended by the hinge mechanism 40, the semicircular grooves 25a, 2 of the both game boards 20, 20 are formed.
5a face each other to form a circular support hole 25. The support columns 51, 51 have an outer shape corresponding to the inner diameter of the support holes 25, 25, and the bag portions 5 formed at both ends of the net 52 are formed.
2a, 52a are inserted and the lower end is pushed into the support holes 25, 25, so that the game
Support across 2

An independent hole may be formed on the game board 20 to hold the support column 51, but the hole must be thick enough to wrap around the entire circumference, and a force for pulling in and out is required. May be required. However, by making the semicircular grooves face each other, it is only necessary to make the side walls of a uniform thickness, and when it is difficult to insert and remove, it is very easy to perform by slightly opening the game boards 20, 20 to each other. Become.

It is to be noted that handles 27, 27 are formed on the side walls 23, 23 of the game boards 20, 20 on the side opposite to the adjacent pieces, and latches 28, 28 are provided on the outer side of the side walls 23, 23. When stopped with the latches 28, 28 in the folded storage state, the handles 27, 27 are gripped and become portable. Next, the operation of the present embodiment having the above configuration will be described. Initially, when the table tennis table 10 is in the stored state, the table tennis table 10 is rotated by the hinge mechanism 40 and the game board 2 is rotated.
0, 20 are extended, and the leg storage portion 22 on the rear surface is further extended.
The U-shaped main legs 31, 31 housed in c are pulled out and reinforced with the first support piece 32 and the second support piece 33. Thereafter, when the board surfaces of the game boards 20 and 20 face up and the support columns 51 and 51 having the net 52 inserted through the support holes 25 and 25 formed in the center portion are pushed in, the game becomes possible.

As described above, since the game boards 20 and 20 are formed of resin and the grid-like ribs 21 are formed on the back surface thereof, the ping-pong ball is well-splashed even in the form of a thin plate, and is reduced in weight to improve portability. A table tennis table that does not impair the interest of the game can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a use state of a table tennis table according to one embodiment of the present invention.

FIG. 2 is a perspective view of a table tennis table in a stored state.

FIG. 3 is a perspective view of a back surface of the game board.

FIG. 4 is a plan view of the back surface of the game board.

FIG. 5 is a schematic view showing a stored state of a main leg.

FIG. 6 is a schematic view showing a state where the main leg is being pulled out.

FIG. 7 is a schematic view showing a state in which the main leg is pulled out.

FIG. 8 is a perspective view showing a method of fixing the first support piece.

FIG. 9 is a schematic view showing a method of fixing the second support piece.

FIG. 10 is a perspective view of a broken state showing a mounting method of a slide stop.

FIG. 11 is a side view of a side hinge.

FIG. 12 is a plan view of a side hinge.

FIG. 13 is an exploded perspective view showing a method of attaching a side hinge.

FIG. 14 is a plan view of a center hinge.

FIG. 15 is an exploded perspective view showing a method of attaching a center hinge.

FIG. 16 is a perspective view of a side wall serving as an adjacent piece of the game board.

FIG. 17 is a bottom view of an adjacent state of the game board.

FIG. 18 is a perspective view showing a method of mounting a net.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Table tennis table 20 ... Game board 21 ... Rib 22 ... Storage part 22c ... Leg storage part 23 ... Side wall 24 ... Convex surface 25 ... Support hole 25a ... Semicircular groove 30 ... Leg 31 ... Main leg 31a ... Horizontal piece 31b ... vertical piece 32 ... first support piece 33 ... second support piece 34 ... rubber tube 40 ... hinge mechanism 51 ... support column 52 ... net

Continuation of the front page (56) References JP-A-7-329969 (JP, A) JP-A-7-257385 (JP, A) JP-A-7-223678 (JP, A) JP-A-50-155357 (JP) , A) Fully open 1979-164072 (JP, U) Fully open 49-116283 (JP, U) Fully open 1985-60-74652 (JP, U) Fully open 47-1405 (JP, U) 5-8302 (JP, Y1) Jiko 24781 (JP, Y1) Jiko 14-17258 (JP, Y1)

Claims (6)

(57) [Claims] 1. A table tennis table comprising a pair of substantially square game board surfaces and legs for horizontally holding the game board surface at a predetermined height, wherein the game board surface is formed of resin and A lattice-shaped rib is formed on the back surface, and the pair of game board surfaces are formed in a shallow dish shape having side walls extending in a substantially vertical direction from the edge to the back side of the board surface, and adjacent side walls at the time of a game. The ends of the game board are connected by hinges and are rotatable between an extended state and a bent state, and the height of the rib on the back surface of the game board is reduced to form a storage section, While rotatably supporting the tips of the U-shaped legs that fit within the game board surface on the back side near the edge opposite to the adjacent edge on the back side of the game board surface, On the back of the game board surface, a leg storage section with the above ribs lowered to match the legs is formed Ping-pong table to be. 2. The table tennis table according to claim 1, wherein
A table tennis table wherein the height of ribs on the back surface of the game board is reduced to form a storage section. 3. The ping-pong table according to claim 1 or 2, wherein the U-shaped leg is disposed obliquely between the plate surface and the vertical piece when the U-shaped leg is in a substantially vertical state. A table tennis table comprising: a first support piece that cannot be expanded and contracted; and a second support piece that is also provided between the horizontal pieces when it is substantially in a vertical state and that cannot be expanded or contracted. 4. The table tennis table according to claim 1, wherein a rubber tubular sliding member is disposed on the horizontal piece of the U-shaped leg. 5. The ping-pong table according to claim 1, wherein the side walls connected by the hinge are formed with convex surfaces facing each other so as to be able to abut against each other in an extended state. A table tennis table characterized by the following. 6. The ping-pong table according to claim 1, wherein a supporting recessed portion in which a bar can be inserted at the time of facing each other is formed at a position near an outer side of a side surface adjacent to each other on the game board surface, A table tennis table, comprising: a bar member capable of inserting a lower end into a support hole formed with the support concave portion facing the same; and a net support capable of supporting a net at a protruding upper portion.