JPH0617469Y2 - Tennis game board - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The inventor of the present invention relates to a game board on which a game imitating tennis can be played.

[Conventional technology]

The present invention was previously disclosed in Japanese Utility Model Publication Nos. 56-43353 and 56.
As described in JP-A-43354 and JP-B-62-125577, a table surface for rolling balls is provided on the upper surface of the table, and the racket supports are attached so as to be reciprocally movable along the both edges of the table surface. Inside each racket support, a main shaft and a racket drive shaft supporting a racket for hitting a ball rolling on the board surface are installed,
The main shaft is provided with a cam plate having a use curve for transmitting a ball hitting motion to the racket, and a my spring suspended so as to transmit rotational power to the cam plate, and a winding mechanism is connected to the main spring. Inventing a tennis game in which a link provided with a cam follower that engages with the usage curve of the cam plate is connected to the racket drive shaft.

[Problems to be solved by the device]

In the above-mentioned tennis game board, first place a ball on the board surface, roll the ball toward the racket of the racket support of the attacking side, and start the game by the above racket performing the action of hitting the ball back. However, the game could not be started by sending the ball directly from the attacking racket support to the board as if it were serving.

The present invention provides a tennis game board that can directly send the ball from the attacking racket support to the board as if it were serving at the start of the game, and can increase the fun of operating the racket support. That is the purpose.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a board surface for rolling balls on the upper surface of the base, and mounts the racket supports along the both edges of the board so as to be reciprocally movable. Is a racket drive shaft that supports a main shaft and a racket for hitting a ball rolling on the board surface, and the main shaft, and a cam plate having a use curve for transmitting the movement of hitting the ball to the racket, A spring spring suspended so as to transmit rotational power is provided on the cam plate, a winding mechanism is connected to the spring spring, and a cam follower that engages with the usage curve of the cam plate is provided on the racket drive shaft. In a tennis game board in which links are connected, a ball mounting portion is provided on each racket support, and the ball from the mounting portion is closer to each racket support on the board surface. The rolling down, and is characterized in providing an opposite ball delivery member comprising a guiding portion for inducing so as to roll toward the racket support side of the.

[Action]

In a state where the spring is wound in each racket support body and the elasticity is accumulated, the person who operates the racket support body that is the attacking side determines the ball on the placement part of the ball delivery body provided on the support body. Place and lightly push the ball. Then, the ball rolls along the guide portion of the ball delivery body, falls on the board surface at a position close to the support, and receives the momentum to roll to the racket support on the receive side. The person who operates the racket support on the receive side moves the racket support rapidly to reach a position where the rolling ball can be received by the racket, and hits the ball back.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
Is a base plate provided with floor plates 4, 4'having a plate surface 2 imitating a tennis court and guide rail portions 3, 3'parallel to both edges of the plate surface 2. 5, 5'is the guide rail portion 3,
A hollow racket support that reciprocates between both ends of the floorboards 4 and 4'while being guided by 3 '. The racket drive is located at the front side and the upper side of the side walls 6 and 6'. The shafts 7 are rotatably installed, and the racket support shafts 5 and 5'are passed through the through holes 9 formed in the front wall 8 of the racket support members 5 and 5'at the central portions of the racket drive shafts 7.
Support shafts 10 and 10 'projecting outward from the front part of the support shafts 10 and 10'.
1'is attached so as to be suspended. 12 is the main axis,
Inside each racket support 5, 5 ', it is parallel to the racket drive shaft 7 and is rotatably installed between the central portions of both side walls 6, 6'of the racket support 5, 5'. Reference numeral 13 is a cam plate attached to the main shaft 12, which is used curve 15 for transmitting the movement of hitting a ball 14 formed of a metal material or the like to the rackets 11 and 11 'and the ball 14 after the rackets 11 and 11' hit the ball 14. A claw portion 16 is provided for stopping the rotation of the cam plate 13 each time it returns to the position where the hitting is started.
Reference numeral 17 is a link that engages with the usage curve 15 and transmits the movement of hitting the ball 14 to the rackets 11 and 11 ′. The upper end 18 is fixed to the racket drive shaft 7, and the usage curve is provided at a portion opposite to the usage curve 15. A cam follower 19 that engages with 15 is provided. Reference numeral 20 denotes a box having a spring spring (not shown) suspended therein so as to transmit rotational power to the cam plate 13, which is provided integrally with the cam plate 13. Reference numeral 21 is a winding mechanism that is connected to the mainspring spring and winds the spring, and 22 is a stopper that stops overrun of the rackets 11 and 11 ', and projects from the lower side of one side wall 6 of the racket support 5, 5'to the inside. At the time when the rackets 11 and 11 ′ are moved to the pivotally attached portion 24 that is rotatably pivotally attached to the provided support shaft 23 immediately before starting to hit the ball 14, the claw portion 16 of the cam plate 13 and the lower end portion 25 of the link 17 are provided. An engaging projection 27 that simultaneously engages with
28 is provided. 29 is the stopper 22 for engaging the projection 2
The springs 7 and 28 are suspended so as to urge the claw portions 16 and 28 of the cam plate 13 and the lower end portion 25 of the link 17 to be pressed, and the balls 76 and 76 'are provided on the supports 5 and 5'. The delivery body is located above the support bodies 5 and 5'on opposite sides of the support bodies 5 and 5'and has a ball 14
And a mounting portion 77 that is formed so that it can be mounted, and the mounting portion 77 obliquely descends to the front side of the supporting bodies 5 and 5 ', and then while curving so that its inclination gradually becomes gentle. And a guide portion 78 having a concave cross-section formed so as to slightly project from the front surface of the support body 5 or 5 ', and a side surface of the guide portion 78 is hung on a side surface of the support body 5 or 5'removably. A stop plate 79 is provided, and the support member 5,
Support plate 8 mounted so as to lean against the front part of 5 '
A catching projection 82 is provided on a catching projection 81 provided on the side surfaces of the 0 and 80 'so as to be detachably mounted. The ball delivery bodies 76, 76 'may be provided on the same side surface of the support bodies 5, 5'.

Next, the operation and operation of the racket support bodies 5 and 5'in the above embodiment will be specifically described. First, the racket support body 5,
The winding mechanism 21 tightens the mainspring in the box 20 every 5 '. In the process, the engagement protrusion 27 of the stopper 22 receives the elastic force of the spring 29 and the cam plate 13
When the cam plate 13 is stopped from rotating, the engaging projection 28 of the stopper 22 is engaged with the claw portion 16 of the spring 2 and
The lower end portion 25 of the link 17 is engaged by receiving the resilience of 9 and the rackets 11 and 11 ′ are stopped at the position immediately before starting to hit the ball 14.

In this state, the cam follower 19 engages the rackets 11, 11 'of the use curve 15 reciprocally with the rackets 11, 11' as shown in FIG. After grabbing with your fingertips to move them to their swing-up positions, if you remove your fingertips from the rackets 11, 11 ', the rackets 11, 1,
1'returns to its original position under its own weight.

When the mainspring has been sufficiently wound, the placing portion 77 of the ball delivery body 76 provided on the racket support body which has been determined to be the attacking side in advance, for example, the racket support body 5.
Place the ball 14 on, press the ball 14 lightly,
Racket support 5'on the receive side from the ball delivery body 76
A tennis game is started by sending it out to.

The person who operates the racket support 5'on the receive side quickly moves the racket support 5'on the floor plate 4'at the position where the rolling ball 14 can be received by the racket 11 '.

When the ball 14 hits the racket 11 ', the lower end of the racket 11' is pushed in the direction of the arrow as shown in FIG. 9, and the movement is transmitted from the link 17 via the support shaft 10 and the racket drive shaft 7, so that the link 17 is The racket drive shaft 7 is used as a fulcrum to rotate the racket 11 'to the hitting start position. Then, the cam follower 19 moves to the start position of the curved portion 15B that conveys the movement of swinging them up to the racket 11 'in the use curve, and at the same time, the lower end 25 of the link 17 resists the engagement projection 28 against the elasticity of the spring 29. By pushing it, the engaging projection 27 moves to the position where it is disengaged from the claw portion 16 of the cam plate 13 against the elastic force of the spring 29, and the cam plate 13 is accumulated in the spring. It receives rotation power and rotates in the direction of the arrow. Then, the curved portion 15B of the use curve 15 is the cam follower 1
Since it rapidly rotates around the main shaft 12 as a fulcrum while engaging with 9, the motion of swinging it up is transmitted to the racket 11 'via the link 17, the racket shaft 7, and the support shaft 10, and the racket 11' moves the ball 14 It strikes back to the edge side where the racket support 5'on the opposite side is provided.

When the racket 11 'is swung up, it reaches a position where it engages with the claw portion 16 of the cam plate 13 as shown in FIG. 10, and the engaging projection 27 receives the elastic force of the spring 29 and engages with the claw portion 16. Therefore, the rotation of the cam plate 13 in the arrow direction stops. Then, the cam follower 19 moves to the curved portion 15A connected to the curved portion 15B of the use curve 15 and can reciprocate in the curved portion 15A, so that the racket 11 'is swung down by its own weight, and at the same time, the movement thereof. It is transmitted to the link 17 via the support shaft 10 and the racket drive shaft 7, the link 17 rotates toward the original position with the racket drive shaft 7 as a fulcrum, and then the racket 11 'descends to the position immediately before starting to hit the ball 14. At this time, the lower end 25 of the link 17 hits the engaging projection 28 of the stopper 22, the link 17 reaches its original position and stops, and the racket 1
1'is held in a waiting state to hit the ball 14 which is rolling next.

The person who operates the attacking racket support 5 is the racket 1
The racket support 5 is quickly moved on the floor plate 4 so that the racket 11 can receive the ball 14 hit and rolled by the racket 11.

When the ball 14 hits the racket 11, the same operation as described above for the racket 11 proceeds, and the racket 1
1 hits the ball 14 back to the edge side where the racket support 5 is provided.

As described above, by alternately moving both racket supports 5 and 5'to the rolling ball 14, the rackets 11 and 11 'strike the ball 14, and in the meantime, When the player fails to hit the ball, the player who operates the racket support 5 or 5'of the missed player loses the point, and the opponent's score is determined as one win or loss. By repeating the above operation, a game imitating tennis can be continued.

Next, the structure of the above embodiment will be described in more detail. The base 1 has long sides 30 and 30 'which face each other and short sides 31 and 31' which are connected to their ends, and the top faces thereof face each other. Walls 3 along the long sides 30, 30 '
2, 32 ′ are provided, and the top surface is provided at a portion along the line connecting the central portions of the surrounding walls 32, 32 ′, and the inclined surface 3 is inclined so as to decrease toward both end edges of the board surface 2 from there.
3, 33 'are provided, and a line 34 imitating a white line drawn on the tennis court is attached to the board surface 2, and a concave portion is provided between each edge of the board surface 2 and the short sides 31, 31'. Grooves 35 and 35 'are provided, and grooves 36 and 36' for accumulating the balls 14 are provided on the upper surfaces of the surrounding walls 32 and 32 '. Each groove 3
6, 36 'may be provided with an outlet for feeding the ball 14 to the top of the board surface 2. On the outside of each enclosure 32, 32 ', a panel 83, 83', which is shaped like a stand for watching a tennis game and has a cartoon-like audience (not shown) drawn on the surface, is inclined. The panels 83, 83 'are fixed by inserting the support shafts 84, 85 provided at both ends of each panel 83, 83' into the shaft holes 86, 87 provided at both ends of each surrounding wall 32, 32 '. To do. Each wall 3
Between 2 and 32 ', a model plate 88, which is shaped like a tennis net, crosses the central portion of the board surface 2 and
The balls 14 are spaced from each other so that the balls 14 can pass therethrough, and the lower ends of the posts 89 and 89 'provided at both ends of the model plate 88 are inserted into the holes 90 and 90' provided at the central portions of the surrounding walls 32 and 32 '. Then, the model plate 88 is fixed. Floor boards 4, 4 '
It is arranged so as to come into contact with the boundary with the board surface 2 in the recessed portions 35, 35 ', and screws 3 are provided at the bottoms of the recessed portions 35, 35'.
8 and 38 'are fixed, and long holes 39 and 39' are formed in the central portions of the upper surfaces of the floor plates 4 and 4'in both end directions in parallel with the both end edges of the board surface 2 to form the guide rail portions 3, 3'is formed so that the upper surfaces of the floorboards 4 and 4'have a step difference in which the two parts on the board surface 2 side from the long holes 39, 39 'are higher than the parts on the opposite side. Rack gears 40, 40 'are provided along the edges of the long grooves 39, 39'.

On the upper surface of the floor boards 4, 4 ', there is a through hole 41 in the central portion,
Also, pedestals 42 and 42 'for reciprocating between the both ends of the floor plates 4 and 4'are placed, and the bottoms of the pedestals 42 and 42' are opposed to the long holes 39 and 39 'of the long sides of the long hole 41. A frame 43 protruding from the portion to be fitted into the long holes 39 and 39 'and having both side surfaces open, and slidably fitted into the long holes 39 and 39' from both sides sandwiching the frame 43. Protrusions 44 and 44 'are provided so as to protrude so that the ends of these protrusions 44 and 44' have a width larger than the width of the long holes 39 and 39 'and the lower end of the frame 43 is fitted. Notch 4
The retaining plate 46 provided with No. 5 is pressed, and the screws 47, 4
7'is screwed into the protrusions 44, 44 'from both ends of the retaining plate 46 so that the pedestals 42, 42' can be smoothly moved back and forth without being displaced from the floor plates 4, 4 '. On the upper surface of 42, 42 ', at a position close to the front end edge and the rear end edge, a locking projection 48 protruding parallel to the elongated holes 39, 39' and having a cross section bent outwardly in a key shape. , 48 'are provided.

The racket support bodies 5 and 5'are divided into two pieces at the center by placing the split pieces 49 and 49 'on the pedestals 42 and 42'.
The engaging edges 50, 50 'provided at the lower ends of 9, 49' are engaged with the engaging protrusions 48, 48 'to bring the divided surfaces of the divided pieces 49, 49' into contact with each other, so that one divided piece 49 ' From the screw insertion portions 51, 52, 53 provided to the other divided piece 49 from the central portion near the upper end and both side portions near the lower end to the screws 54, 5.
5 and 56 are inserted respectively, and these screws 54, 55,
56 on the other divided piece 49 of each screw insertion portion 51, 5
Screw-piercing portion 5 provided so as to abut on 2, 53
The divided pieces 49, 49 'are integrally joined by screwing into the pieces 7, 58, 59, respectively.

On the support plates 80, 80 'attached to the front parts of the racket support bodies 5, 5', for example, a player who is in a position to hit a ball with a racket, a hero of a cartoon, etc.
In addition, panels 61 and 61 'having through holes 60 through which the support shafts 10 and 10' are inserted may be attached. Further, the racket supports 5 and 5'are formed into dolls and other models, or dolls and other models. May be built into.

The usage curve 15 of the cam plate 13 is the link 17 of the cam plate 13.
A cam groove formed in the plate surface opposite to the cam groove 19 so that the cam follower 19 is fitted therein, and a curved portion 15B for transmitting the swinging motion to the rackets 11 and 11 'and a curved portion 15A for transmitting the swinging down motion. The racket 11 and 11 ′ are driven four times each time the cam plate 13 makes one rotation, which is composed of cam grooves that are alternately arranged around the main shaft 12 at intervals of 90 degrees. The groove of the curved portion 15A is wider than the groove of the curved portion 15b so that the cam follower 19 can move more freely. On the outer periphery of the cam plate 13, the rackets 11 and 1
1'corresponds to the position immediately before starting to hit the ball 14
A claw wheel 62 in which the individual claw portions 16 are arranged at equal intervals is provided.

Next, an embodiment of the winding mechanism 21 for the mainspring will be described. A box 20 in which the mainspring 12 has a mainspring incorporated therein.
The cam plate 13, the ratchet wheel 63, the friction plate 64, the gear 65, the pressing spring 66, and the central portion of the pressure adjusting plate 67, which are provided, are inserted into the main shaft 12 by fixing only the ratchet wheel 63 to the main shaft 12.
2 together with the cam plate 13, the ratchet 63,
The friction plate 64, the gear 65, and the pressure adjusting plate 67 are mounted so as to rotate freely, and the outer end of the mainspring in the box 20 is suspended by the projection 68 projecting toward the peripheral portion of the cam plate 13 and the inner end is suspended. Is suspended on a projection (not shown in the drawing) that is provided near the center of the ratchet 63. A base plate 69 is installed below the ratchet wheel 63 between the front and rear side walls of the racket support bodies 5 and 5 ', and the cam plate 13 is provided on the upper surface of the base plate 69 in the same direction as the arrow in FIG. When the ratchet wheel 63 rotates, the ratchet wheel 63 slips while pressing against each of the nails of the ratchet wheel 63 to allow the ratchet wheel 63 to rotate in the opposite direction. Claw plate 7 that stops the rotation of the ratchet wheel 63
0 is fixed. A vertical shaft 71 is rotatably installed between the base plate 69 and the frame 43, and near the lower end of the vertical shaft 71,
A pinion gear 72 that meshes with the rack gears 40, 40 'is fixed, and a crown gear 73 is provided near the upper end of the vertical shaft 71.
Is fixed to the crown gear 73 and the gear 6
A transmission gear 75, which is rotatably supported by a support shaft 74 projecting from the inner walls of the racket support bodies 5 and 5 ', meshes with the gear rack 5. The pressure adjusting plate 67 may be configured to adjust the pressing force of the pressing spring 66 when the winding mechanism 21 is assembled such that the racket is driven 20 times per winding of the mainspring spring. ,
In addition, a lever connected to the pressure adjusting plate 67 may be projected to the outside of the racket support bodies 5 and 5 ', so that the pressing force of the pressing spring 66 can be arbitrarily adjusted during the game.

In the winding mechanism 21 of the mainspring, when the racket supports 5 and 5'are reciprocally moved along the long holes 39 and 39 'while grasping them by hand, the pinion gear 72 meshed with the rack gears 40 and 40'. Reciprocatingly rotates, the reciprocating rotation is caused by the vertical shaft 71, the crown gear 73, and the transmission gear 75.
Is transmitted to the gear 65 via. The gear 65 is pressed against the friction plate 64 by a pressing spring 66, and the pressure causes the friction plate 6 to come into contact.
Since 4 is pressed against the side surface of the ratchet wheel 63, when the gear 65 rotates in the same direction as the rotation direction of the cam plate 13 indicated by the arrow, the ratchet wheel 63 also rotates without engaging with the nail plate 70. When the gear spring 65 starts to wind and the gear 65 rotates in the opposite direction, one of the claws 63 of the ratchet wheel 63 abuts on the tip of the claw plate 70, so that the rotation of the ratchet wheel 63 is stopped and the mainspring spring moves as described above. It is held in the tightened state. By repeating the above-mentioned operation, the winding of the mainspring is advanced, the rotational power is accumulated, and when the limit of the winding tightening is reached, the spring pressure overcomes the frictional force of the friction plate 64. 63 and the gear 65 start slipping with respect to the friction plate 64, and no matter how much the gear 65 further rotates in the direction of the arrow, the spring is not tightened.

With the above-mentioned rotational power, the rackets 11 and 11 ′ are balls 14
Each time the ball is hit, the spring is gradually loosened, but the time until the ball 14 rolls during the progress of the game is used to connect the racket supports 5, 5'to the slots 39, When the gear 65 is reciprocated several times along the line 39 ', the loosened spring spring is wound up every time the gear 65 rotates in the direction of the arrow, so that the spring spring can always be kept in the limit state of winding.

In the present invention, instead of the winding mechanism for the mainspring, a mechanism for directly winding and tightening the mainspring may be adopted.

[Effect of device]

Since the present invention is configured as described above, it is possible to directly send the ball from the ball sending body of the racket support on the attacking side to the board surface as if to serve, at the start of the game. It is possible to provide a tennis game board that can increase the fun of operation. Further, if the racket drive mechanism is configured as in the above embodiment, after the racket is swung up, it returns to the position immediately before starting to hit the ball by its own weight, no further overrun occurs, and an extra spring is added to the racket drive shaft. Since pressure is not applied, it is possible to prevent the racket from idling until the ball returns after the racket hits the ball, and the movement of the racket to hit the ball becomes sensitive, Even if the force with which the ball hits is weak, the ball can be reliably hit back. In particular, if the cam plate is constructed so that the racket is driven four times each time the cam plate makes one rotation as shown in the above embodiment, the racket drive circuit for the rotational power accumulated in the mainspring is further increased. It has the advantage that it can be done.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a plan view, Fig. 2 is a partial cross-sectional side view, Fig. 3 is an enlarged front view of a racket support, and Fig. 4 is a racket. FIG. 5 is an enlarged side view of the support, FIG. 5 is an enlarged cross-sectional view showing the internal structure of the racket support, FIG. 6 is a right side view of FIG. 5, and FIG. 7 is a partial cross-section of FIG. FIG. 8 is a bottom view of FIG. 7, FIG. 9 is a view showing a state where the racket starts hitting the ball, and FIG. 10 is a view showing a state where the racket is swung up. 1 ... Base, 2 ... Board surface, 3 3 '... Guide rail part, 5 5' ... Racket support, 7 ... Racket drive shaft, 11, 11 '... Racket, 12 ... Spindle , 13 ...
... Cam plate, 14 ... Ball, 15 ... Used curve, 16 ...
… Claws, 17 …… Links, 19 …… Cam followers, 20
...... Box with built-in spring, 21 …… Winding mechanism,
22 ... Stopper, 27 ... Engagement projection, 28 ... Engagement projection, 29 ... Spring, 76, 76 '... Ball delivery body, 77 ... Placement section, 78 ... Guidance section.

Claims (1)

[Scope of utility model registration request] 1. A base surface for rolling balls is provided on the upper surface of the base,
Racket supports are attached so as to be reciprocally movable along both edges of the board surface, and inside each racket support body, a main shaft and a racket drive shaft supporting a racket for hitting a ball rolling on the board surface. The main shaft is provided with a cam plate having a working curve for transmitting a ball hitting motion to the racket and a mainspring spring installed so as to transmit rotational power to the cam plate. In a tennis game board in which a mechanism is connected and a link provided with a cam follower that engages with the usage curve of the cam plate is connected to the racket drive shaft, in each racket support, above each racket support. The position of the ball on which the ball is located and the position where the ball is close to each racket support on the above-mentioned board surface by obliquely descending from the mount to the front side of each racket support. The rolling down, and tennis game board, characterized in that providing the ball delivery member comprising a guiding portion for inducing so as to roll toward the opposite side of the racquet support side.