JPH09201438A - Table tennis table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve portability and bouncing of a ball on a table tennis table by constructing a pair of playing tables of approximately square and legs supporting the table horizontally at a given height and by forming the playing table from a resin and lattice like ribs on the back side thereof. SOLUTION: A portable table for table tennis comprises a pair of approximately square tables made of a resin, fording legs retractable in the back side of each of the tables and a hinge mechanism connecting the tables so that both of the playable state made by revolving and extending the tables with the hinge mechanism and the folding state by superimposing the tables might be possible. And lattice like ribs 21 are formed over the whole of the back side of the table and a containing space 22 is formed by the lower height part of the ribs 21. The containing space 22 comprising a racket container part 22a and a tennis ball container 22b and a leg container 22c along the periphery part are formed in the containing space.

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 table tennis table has been used for children and is provided with a pair of game boards formed of plywood and a separate assembly type wooden foot for supporting the game boards. .

[0003]

In the above-mentioned conventional table tennis table, in order to make the ping-pong ball bounce well on the game board surface, the plywood must be made thick, but when it becomes thick, it becomes heavy and becomes portable. However, there is a contradictory problem that it becomes unsuitable, and when it is thin, it does not play well and the fun is reduced.

The present invention has been made in view of the above problems, and an object thereof is to provide a table tennis table which is light and has good portability, and which allows a ping-pong ball to bounce well.

[0005]

In order to achieve the above object, the invention according to claim 1 has a pair of substantially square game board surfaces, and legs for horizontally holding the game board surfaces at a predetermined height. In the table tennis table including the above, the game board surface is formed of resin, and a grid-like rib is formed on the back surface thereof.

[0006] The invention according to claim 2 is based on claim 1.
In the table tennis table described in, the pair of game board surfaces are formed in a shallow dish shape in which side walls are extended in a substantially vertical direction from the edge portion to the back surface side of the board surface, and end portions of adjacent side walls during a game Are connected by a hinge so as to be rotatable between a distracted state and a folded state. Further, the invention according to claim 3 is the table tennis table according to claim 2, wherein the height of the ribs on the back surface of the game board is reduced to form the storage portion.

Further, the invention according to claim 4 is the table tennis table according to any one of claims 1 to 3, wherein the tip of the U-shaped leg portion which is accommodated in the game board surface is on the back side of the game board surface. While supporting rotatably on the back side near the edge on the side opposite to each other's adjacent edges, on the back side of the game board surface is formed a leg storage section with the ribs lowered to match the same leg There is a configuration. Further, in the invention according to claim 5, in the table tennis table according to claim 4, when the U-shaped leg portion is in a substantially vertical state, the U-shaped leg portion is obliquely arranged between the plate surface and the vertical piece. The first support piece that cannot expand and contract, and the second support piece that does not expand and contract are arranged between the horizontal pieces when they are in a substantially vertical state.

Further, the invention according to claim 6 is the table tennis table according to claim 4 or claim 5, in which a rubber tubular sliding member is arranged on the horizontal piece of the U-shaped leg portion. There is. Further, the invention according to claim 7 is the table tennis table according to any one of claims 1 to 6, wherein convex surfaces facing each other are formed on both side walls connected by the hinge, and the convex surfaces abut each other in an extended state. It is designed to be used. Furthermore, the invention according to claim 8 relates to claims 1 to
The table tennis table according to claim 7, wherein a support concave portion into which a bar can be inserted at the time of facing is formed at the outer side positions of the side surfaces adjacent to each other on the game board surface, and the supporting concave portion is formed facing each other. The rod has a lower end that can be inserted into the support hole, and a net column that can support the net at the protruding upper portion is provided.

[0009]

In the invention according to claim 1 configured as described above, grid-shaped ribs are 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. It is possible to reduce the weight, and the ribs regulate the deflection of the game board surface so that the ping-pong ball can bounce well. In the invention according to claim 2 configured as described above,
Formed in a shallow dish shape with side walls extending in a substantially vertical direction from the edge of the pair of game board surfaces to the back surface side of the board surface, and the ends of adjacent side walls at the time of game are connected by hinges. , If the hinge part is rotated and the pair of game plates are extended, it becomes a game state, and if the hinge part is rotated and the pair of game plates is bent, the end faces of the side walls are mutually joined. Form a thin box facing each other, and have a small size suitable for carrying while having a housing portion inside.

Further, in the invention according to claim 3 configured as described above, the height of the ribs on the back surface of the game board is lowered so that the game board which is a shallow box is folded back to form a box body. The ribs that are lowered when forming form a space. Further, in the invention according to claim 4 configured as described above, since the U-shaped leg portion is rotatably supported at its tip end with respect to the back surface side of the game board surface,
By rotating the same leg as required, the game board is accommodated in the back surface of the game board or is projected from the back surface of the game board to support the game board. Where U
The character-shaped legs are rotatably supported with respect to the back surfaces of the pair of game plates, which are opposite to the edges adjacent to each other, so that the legs stand at the farthest position during the game. It is installed to improve stability. Furthermore, on the back side of the game board surface, a leg storage part is formed by lowering the ribs to match the leg part and forming a recess, and since the leg part is inserted into this recess during storage, storage is also good. Become.

Further, in the invention according to claim 5 configured as described above, when the U-shaped leg portion is in a substantially vertical state, the first support piece that cannot expand and contract is the plate surface and the leg portion. Of the same vertical leg to hold the leg vertically, and in this state a non-stretchable second support piece is placed between the horizontal legs of the leg. Hold the ends of the U-shaped legs so that they do not open or close.
Further, in the invention according to claim 6 configured as described above, the rubber tubular slip-stop member disposed on the horizontal piece of the U-shaped leg portion does not come into contact with the floor surface to prevent inadvertent slippage. To do.

Further, in the invention according to claim 7 configured as described above, convex faces facing each other are formed on both side walls of the game board which are connected by the hinge, and the hinge is rotated. When the game board is extended, the convex surfaces abut against each other. Further, in the invention according to claim 8 configured as described above, since the support recesses formed on the side surfaces face each other to form the support holes when the game board surfaces are adjacent to each other, one independent hole is formed. It is not necessary to form, and even when the net support inserted in the support hole is removed, the diameter of the support hole is widened by simply opening the game plates a little and easily removed.

[0013]

As described above, according to the present invention, the game board is made of resin and the ribs on the back surface allow the ping-pong balls to bounce well. Therefore, a table tennis table that is compatible with portability can be provided. Can be provided. Further, according to the invention of claim 2, when folded by a hinge, it becomes a box body, which can be stored while being downsized, and is more portable. Further, according to the invention of claim 3, it is possible to form the storage portion at the height of the ribs. For example, it is not necessary to separately carry accessories, tools, etc. You can also

Further, according to the invention of claim 4,
By providing the rotatable leg portion, it is possible to pull out and prepare with one touch, 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 portion is lowered in order to reduce the overall thickness, the U-shaped leg portion has only the rib at the peripheral edge portion of the game board surface lowered, so that it does not hinder the game. You can

Further, according to the invention according to claim 5,
When supporting the legs, the first support piece holds it vertically, while the second support piece holds it so that the ends of the legs do not close or open. Can be done. Further, according to the sixth aspect of the present invention, by disposing the rubber tubular sliding member on the horizontal piece of the U-shaped leg portion, sliding can be easily performed. Further, according to the invention of claim 7, a convex surface is formed on the side wall surfaces facing each other,
Since the convex surfaces are made to abut against each other, the accuracy of abutting can be increased as compared with the case where the abutting surfaces are abutted.

Further, according to the invention of claim 8,
The net can be stretched very easily on the game board surface, the support pillars can be easily pulled out, and it is not necessary to make the wall thick as in the case of independently forming the holes.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a usage state of a table tennis table according to an embodiment of the present invention, FIG. 2 is a storage state, and FIG. 3 is a perspective view showing a back surface of a game board. This portable table tennis table 10 has a pair of square game plates 20 and 20 formed of resin and a foldable leg portion 30 that can be stored on the back surface of each game plate 20.
And a hinge mechanism 40 that connects the game boards 20 and 20, and the game board 2 is rotated by the hinge mechanism 40.
It is possible to take a use state in which 0 and 20 are extended and a stored state in which the game plates 20 and 20 are overlapped by rotating the hinge mechanism 40.

As shown in FIG. 3, although the game board 20 itself is formed of a thin resin plate, a grid-shaped rib 21 is formed on the entire back surface thereof. The rib 21 allows the ping-pong ball to bounce well without the plate surface of the game plate 20 flexing despite being a thin plate. In the present embodiment, the ribs 21 are so-called vertical and horizontal vertical grids, but they do not necessarily have to be vertical, and the ribs 2 that extend substantially perpendicular to the plate surface and are connected to each other are provided.
1 may be used, and a so-called honeycomb-shaped hexagonal lattice may be used, or a triangular lattice may be used.
It can be modified appropriately. Further, the size of the lattice does not have to be uniform, and may be partially rough or fine. Further, the height of the rib 21 does not have to be uniform as well, and may be partially increased or decreased. And this combination, namely
It is also possible to make the lattice dense at the lower portions of the ribs 21 and roughen the lattice at the higher portions of the ribs 21.

In this embodiment, as will be described later,
The back surfaces of both game plates 20 and 20 can be made to face each other to be in a stored state, and the lower portion of the rib 21 forms a storage portion 22. As shown in FIG.
Is a leg portion formed in a U-shape along a peripheral edge portion together with a space for an accessory including 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. It is composed of 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 densities are the same, lowering the ribs 21 lowers the easiness of the ping-pong ball to bounce, and the racket storage portion 22a having 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 surface at the net side, even if the racket storage portion 22a becomes a part that is difficult to bounce, it has little influence on the game.

The shape of the game board 20 is square in nature of a table tennis game, but it does not necessarily have to conform to the rules of pure table tennis. Also in this embodiment, in addition to being downsized, the height of the board surface of the game board 20 is also low, and the shape is not limited to a square, and the corners may be rounded or the entire shape may be rectangular. It is also possible to change such as. The game board 20 is provided with ribs 21 on the entire back surface, and with side walls 23 extending from the entire circumference to the back surface, and is formed in a so-called shallow dish shape. When the hinge mechanism 40 is folded and folded, the side walls 23, 23 face each other to form a box body and a storage space. The leg portion 30 is, as described above, this game board 2
Main leg portions 31, 31 housed on the back surface of 0, formed by bending an iron pipe into a U-shape, and rotatably connected to the back surfaces of the respective game plates 20, 20, and each main leg portion. Three
It is composed of a first support piece 32 and a second support piece 33 that reinforce the parts 1 and 31.

Vertical pieces 31b, 31 are provided at both ends of the horizontal piece 31a.
The U-shaped main leg portions 31, 31 in which b is continuous are the game board 20.
The rib 21 formed on the back surface is bent slightly smaller than the game board 20 to the extent that it can be inserted into the low U-shaped leg storage portion 22c, and is opposite to the side provided with the hinge mechanism 40. It is rotatably connected on the side close to the side.
On the other hand, the first support piece 32 rotatably connects the two strip plate pieces 32a and 32b at one end, and rotatably connects the other end of the 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.

By adopting such a configuration, FIGS.
As shown in FIG. 8, the main leg portions 31, 31 can be pulled out from the back surface of the game boards 20, 20, and can be stored in the main leg portion storage portion 22c on the back surface, and as shown in FIG. When the leg 31 is substantially vertical to the game board 20, fixing the strip plate pieces 32a and 32b of the first support piece 32 with thumbscrews makes the first support piece 32 non-expandable. The main leg portion 31 is held vertically to the game board 20.

In the present embodiment, the main leg portion 31 that can be stored is provided, but as the leg portion 30, it is sufficient if at least the plate surface of the game plate 20 can be held horizontally at a predetermined height, and it is a fixed type. It may be, or may be removable. Also, each U-shaped game board 2
It is designed to support the whole by two main leg parts 31, 31 one by one for 0 and 20, but it is possible to use four legs or support each game board 20 as appropriate. It can be transformed. Further, as for the first support piece 32, it suffices if the main leg portion 31 can be held vertically.
For example, one end of one strip plate is rotatably held with respect to the side wall of the game plate 20, and the other end is a vertical piece 31 of the main leg 31.
It may be fixed to b with a thumbscrew. Of course, other fixing elements such as pins can be used instead of these thumbscrews. The U-shaped main leg 3
1, 31 will be projected downward at the most distant positions in the two game plates 20, 20, and the support points are widened to improve stability.

The leg portion 30 employs the second support piece 33 together with the first support piece 32. As shown in FIG. 9, the second support piece 33 has one end of a pair of strip plate pieces 33a, 33b. The strips 33a and 33b are rotatably connected and the connecting portions are fixed with thumbscrews in a state where the strips 33a and 33b are extended, and both ends are horizontal pieces 31 of the main leg portions 31 and 31, respectively.
Fix with a thumbscrew in the center of a and 31a. Strip 33a,
By fixing the connecting portion of 33b with a thumbscrew, the second support pieces 33, 33 cannot expand and contract, and the second support pieces 33, 33 are fixed to the main leg 3
By fixing between the tips of 1, 1, 31 the tips of the main leg portions 31, 31 do not open or close,
Stabilizes without wobbling even when a large force is applied.

It suffices that the second support piece 33 be formed so that the tips of the main leg portions 31, 31 do not open or close. It is not always necessary to form the second support piece 33 with two strip plate pieces 33a, 33b as in this embodiment. Alternatively, 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 a X-shaped space. The horizontal pieces 31a, 31a
As shown in FIG. 10, two rubber tubes 34 that are sliced into rings are attached to each of them, and slip between the floor surface and the horizontal piece 31a is performed. In the present embodiment, the rubber tube is used, but any shape can be used as long as a sliding effect can be expected. However, the rubber tube itself is easy to obtain and can be attached by just passing it through, so it is highly effective as a simple method.

By the way, the two game plates 20, 20 are connected by a hinge mechanism 40, and the hinge mechanism 40 rotatably connects the side walls 23, 23 with each other on both sides of the game plates 20, 20. The side hinges 41, 41 shown in FIGS.
And a central hinge 42 shown in FIGS. 14 and 15 that is rotatably connected between the central portions of the game plates 20 and 20. In each of the hinges 41 and 42, the side wall 23 is sandwiched between and fixed to the contact plate 43 having the female screw hole so that the hinge 23 is not easily broken even if formed into a thin plate shape. Has become.

In the present embodiment, these side hinges 41, central hinges 42 and contact plates 43 are used.
It goes without saying that another hinge mechanism can be adopted as long as it supports the game boards 20, 20 in a rotatable manner. By the way, as for the adjacent piece facing the hinge mechanism 40 in the game plates 20 and 20, as shown in FIGS. 16 and 17, a convex surface 24 projecting from the side surface of the side wall 23 is formed. The convex surfaces 24, 24 are abutted against each other when the No. 20, 20 are in a distracted state. In order to hold the pair of game plates 20, 20 horizontally, it is necessary to prevent the adjacent pieces from opening more than 180 degrees when opening with the hinge mechanism 40. At this time, the side walls 23, 23 come into contact with each other, but if the convex surfaces 24, 24 are formed in this way, the strength of that portion increases and the durability improves, and the accuracy of the entire surface improves when adjusting the angle. Although it is difficult, it is relatively easy to improve the accuracy of the partial surface, which is advantageous in that it is easy to manufacture. Of course, the convex surface 24 is not always necessary, and when the convex surface 24 is formed, the structure may be such that the convex surfaces 24 are not flat but curved as if the structures abut against each other, and the irregularities may be engaged with each other.

Semicircular grooves 25a, 25a are formed at both ends of the side wall 23 having the convex surface 24, as shown in FIG.
As shown in FIG. 2, when the game boards 20, 20 are extended by the hinge mechanism 40, the semicircular grooves 25a, 2 of both the game boards 20, 20 are shown.
5a face each other to form a circular support hole 25. The support columns 51, 51 have an outer shape corresponding to the inner diameters of the support holes 25, 25, and the bag portions 5 formed at both ends of the net 52.
By inserting 2a and 52a and pushing the lower end into the support holes 25 and 25, the net 5 is provided between the game boards 20 and 20.
Support it across 2.

It is possible to form an independent hole on the game board 20 to hold the support pillar 51, but it must be thick so as to enclose the entire circumference, and force is required for insertion and removal. May be required. However, if the semicircular grooves are made to face each other to form a side wall with a uniform thickness, and when it is difficult to insert and remove, it is possible to perform it very easily if the game boards 20, 20 are slightly opened. Become.

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 positions of the side walls 23, 23. Is provided, and when it is stopped by the latches 28, 28 in the folded storage state, the handles 27, 27 can be grasped and carried. Next, the operation of this embodiment having the above configuration will be described. Initially, when this table tennis table 10 is in a stored state, it is rotated by the hinge mechanism 40 to play the game board 2
0 and 20 are extended, and the leg storage 22 on the back is further extended.
The U-shaped main leg portions 31, 31 housed in c are pulled out and reinforced by the first support piece 32 and the second support piece 33. After that, the game can be played by pushing the support columns 51, 51 with the net 52 inserted into the support holes 25, 25 formed in the central portion with the plate surfaces of the game plates 20, 20 facing forward.

In this way, since the game boards 20 and 20 are made of resin and the ribs 21 are formed on the back surface in the form of a lattice, the ping-pong ball is well-bounced even if it is a thin plate, and it is lightweight to improve portability. It is possible to provide a table tennis table that does not impair the taste of the game.

[Brief description of drawings]

FIG. 1 is a perspective view of a table tennis table in use according to an 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 the 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 portion.

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

FIG. 7 is a schematic diagram showing a state in which the main leg is completely 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 in a broken state showing a slip-on attachment method.

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 the side hinges.

FIG. 14 is a plan view of the central hinge.

FIG. 15 is an exploded perspective view showing how to attach the central hinge.

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

FIG. 17 is a bottom view of the game board adjacent to each other.

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

[Explanation of symbols]

 10 ... Ping-pong 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 part 31 ... Main leg part 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

Claims (8)

[Claims] 1. A table tennis table comprising a pair of substantially square game board surfaces and legs for horizontally holding the game board surfaces at a predetermined height, the game board surfaces being molded from resin and A table tennis table with a grid-like rib on the back. 2. The table tennis table according to claim 1,
The pair of game board surfaces are formed in a shallow dish shape in which side walls are extended in a substantially vertical direction from the edge to the back surface side of the board surface, and end portions of adjacent side walls are connected by a hinge at the time of game. A table tennis table characterized by being rotatable between a distracted state and a folded state. 3. The table tennis table according to claim 2,
A table tennis table characterized in that a storage portion is formed by lowering the height of the ribs on the back surface of the game board. 4. The table tennis table according to any one of claims 1 to 3, wherein the tips of the U-shaped legs that fit within the game board surface are adjacent to each other on the back surface side of the game board surface. Is rotatably supported on the back side near the edge on the opposite side, while forming a leg storage section with the ribs lowered on the back side of the game board to match the same leg section. Stand. 5. The table tennis table according to claim 4,
When the U-shaped leg portion is in a substantially vertical state, the first support piece, which is diagonally arranged between the plate surface and the vertical piece and is not expandable and contractible, is also horizontally in a substantially vertical state. A table tennis table, comprising: a second support piece which is arranged between the pieces and which cannot expand and contract. 6. The table tennis table according to claim 4 or 5, wherein a rubber tubular sliding member is provided on the horizontal piece of the U-shaped leg. 7. The table tennis table according to any one of claims 1 to 6, wherein convex surfaces facing each other are formed on both side walls connected to each other by the hinges so that the convex surfaces abut each other in a stretched state. Table tennis table characterized by that. 8. The table tennis table according to any one of claims 1 to 7, wherein at the outer side positions of the side surfaces adjacent to each other on the game board surface, a support concave portion into which a bar can be inserted when facing each other is formed, A table tennis table, characterized in that it comprises a rod that can be inserted into a lower end of a support hole formed by facing the support recess and that supports a net at a protruding upper part.