Toy top game unit

Information

  • Patent Grant
  • 6739939
  • Patent Number
    6,739,939
  • Date Filed
    Tuesday, April 30, 2002
    22 years ago
  • Date Issued
    Tuesday, May 25, 2004
    20 years ago
Abstract
A toy top game unit is provided, the unit comprising a toy top, driving means for rotating said toy top, a game board for receiving said toy top thereon, means for interacting the toy top and the game with each other, and for imparting a change to an operational mode of the toy top on said game board.The interacting means include first magnet means arranged on the toy top and second magnet means arranged on the game board.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a toy top game unit comprising a combination of a toy top and a game board, which allows spinning of the toy top thereon.




2. Description of the Related Art




Conventionally, toy tops have been very popular in the children's playgrounds, and children often play a game in which they strike their toy tops against those of their companions so as to drive out their companions' toy tops from the game board.




Now, for such a toy game, a variety of novel plans have been proposed and put in practice in the Art. For example, the toy top is constituted in such a manner that the toy top can be disassembled so that replacement of parts thereof may be carried out to vary spinning characteristics thereof, to thereby enhance the performance of the toy top so that it has the advantage in a competition. Particularly, it is desired that parts for the toy top be developed which add a function to a toy top that permits it to more strongly attack a competitors' toy top and more strongly defend against it.




However, the toy tops are spun and played on game boards and thus, even when the function of the toy tops are improved, since they move on game boards, the moving pattern thereof is dependent on the form of the game boards. For this reason, the game board disclosed in Japanese Utility Model Application No. 2001-385 has been proposed. This game board is provided thereon with a spinning plate, and this spinning plate is spun to change the performance characteristics of the toy tops, or a rebound plate is arranged on the game board, and by this rebound plate, the toy tops are rebounded so as to change the performance characteristics of the toy tops. However, it was not possible to change the performance characteristics of the toy tops unless the toy tops were definitely mounted on the spinning plate or the rebound plate.




SUMMARY OF THE INVENTION




It is an object of the present invention to solve the foregoing problem and provide a toy top game unit in which operational modes can be changed without the spinning toy tops being influenced by players directly or indirectly and by which the toy top game undergoes a new development.




In order to solve the foregoing problem, according to a first aspect of the present invention, there is provided a toy top game unit which comprises a toy top, driving means for rotating said toy top, a game board for receiving said toy top thereon, and means for interacting the toy top and the game board, and for imparting change to an operational mode of the toy top on said game board, said interacting means including first magnet means arranged on the toy top and second magnet means arranged on the game board.




According to a second aspect of the invention, there is provided a game board for playing a toy top game using a toy top having a magnet arranged thereon comprising a base board having an upper surface, and a game board mounted on said upper surface of said base board, said upper surface of said base board being provided with a receiving means for receiving said second magnet means therein, said game board being detachably mounted on said upper surface of said base board.




According to a third aspect of the invention, there is provided a toy top having a rotational axis thereof comprising a toy body having a shaft arranged at a lowermost portion thereof nd a mount support means for supporting a plurality of blade members thereon; said blade members being laid to overlap each other and being detachably mounted through said mount support means; and magnet means being arranged on the rotational axis of said toy top.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view showing one embodiment of a constitution of a toy top game unit according to the present invention;





FIG. 2

is a perspective view of the toy top;





FIG. 3

is an exploded perspective view showing a structure of the toy top:





FIG. 4

is a perspective view showing a structure of a base member of the toy top:





FIG. 5

is an exploded perspective view showing the structure of an attachment base;





FIGS. 6A

,


6


B, and


6


C are a perspective view, a front view and a bottom view of a shooter main body, respectively;





FIGS. 7A and 7B

are essential sectional views showing an inner structure of the shooter main body;





FIG. 8

is an exploded perspective view showing a structure of a spin imparting mechanism;





FIGS. 9A and 9B

are perspective views showing a structure of a game board;





FIGS. 10A and 10B

are bottom side perspective views showing a structure of magnets to be attached to the game board;





FIGS. 11A and 11B

are fragmentary plane views showing the relation between the toy top and the shooter;





FIGS. 12A

to


12


E are plane views of the game boards showing operational modes of the toy top using change means;





FIG. 13

is an exploded perspective view showing a base member in another embodiment;





FIG. 14

is a longitudinal sectional view showing the base member of the embodiment shown in

FIG. 13

;





FIG. 15

is an exploded perspective view showing an assembly of the toy top having the base member of the embodiment shown in

FIG. 13

; and





FIG. 16

is a perspective view of the toy top having the base member of the embodiment shown in FIG.


13


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS





FIG. 1

shows one embodiment of a toy top game unit according to the present invention. This toy top game unit is constituted by a toy top


1


, driving means, i.e., a shooter


2


which spins the toy top


1


and a game board


3


where the toy top


1


is spun and competes with other toy tops


1


on the game board


3


.




The toy top


1


is, as shown in

FIG. 2

, integrated with a base member


5


and a deadweight member


6


and an attack ring


7


are placed thereon.




The base member


5


, as shown in

FIGS. 3 and 4

, is formed in an inverted cone shape and is comprised of a base member main body


9


which is formed with a core rod


8


protruded from the lower end, and an attachment base


10


which is attached to the upper surface center thereof.




An opening portion


15


which opens laterally is formed on both sides of the upper portion of the base member main body


9


, and a fastener


17


having a pair of leg pieces


16


is detachably attached to the opening portion


15


. Reference numeral


18


designates a protrusion which strides over the leg pieces


16


, and a recessed groove


20


is formed on an upper leg piece


19


which constitutes the opening portion


15


.




The attachment base


10


, as shown in

FIG. 5

, is constituted by a frame


23


which can be divided into right and left divided frames


23




a


,


23




b


and a support


24


supported by this frame


23


.




The divided frames


23




a


,


23




b


have a fitting recessed portion


27


and a fitting convex portion


28


formed, respectively on a joining surface. The fitting convex portion


28


is joined and fit to the fitting recessed portion


27


, so that the frame


23


is formed. Further, engaging holes


30


engaging with engaging plates


43


which are protruded from both sides of the support


24


are formed on the inner peripheral surfaces of the divided frames


23




a


,


23




b


, respectively. The attachment base


10


is constituted by joining the divided frames


23




a


,


23




b


together wherein their engaging holes


30


are engaged with the engaging plates


43


.




The divided frames


23




a


,


23




b


have protruding portions


33


formed continuously on the joining surface thereof, and an inserting groove


37


in which the fastener


17


is inserted is formed in the lower portion of the protruding portion


33


. Notch portions


34


,


34


are formed orthogonal to the protruding portions


33


,


33


. A support piece


35


which is a linkage portion linked with a spin imparting mechanism A of the shooter


2


to be described later is formed in the lower portion of the notch portion


34


. Attachment grooves


36


are formed in a clockwise direction of the peripheral surfaces of the notch portions


34


so as to extend to the other protruding portion


33


.




The support


24


is provided with a circular arc shaped nipping plates


41


on the upper surface of a disc shaped base plate


40


, and a fitting protruding portion


42


to fit with the fitting recessed portion


21


formed in the center of the base member main body


9


is protrusively formed on the lower surface of the disc shaped base plate


40


. The engaging plate


43


engaged with the engaging hole


30


of the frame


23


is protrusively formed on the outside surface of the nipping plate


41


, and a closed-end cylindrical container


26


which accommodates a magnet


25


as change means is nipped by the nipping plates


41


,


41


and then covered by a lid


44


. The magnet


25


may be formed in a size of the container


26


so as to be directly supported by the support


24


.




When the engaging plates


43


of the support


24


are engaged with the engaging holes


30


of the divided frames


23




a


,


23




b


and the fitting convex portions


28


are fitted in the fitting recessed portions


27


, the divided frame


23




a


and the divided frame


23




b


are joined together so that the attachment base


10


can be constituted.




This attachment base


10


permits the protruding portion


33


of the attachment base


10


to engage with a recessed groove


20


of the base member main body


9


, and at the same time, permits the fitting protruding portions


41


of the lower portion of the attachment base


10


to fit in the fitting recessed portion


21


of the base member main body


9


. Further, the fastener


17


is inserted through the opening portion


15


of the base member main body


9


and thrust into a thrust groove


37


of the attachment base


10


, and a top end of the leg piece


16


of the fastener


17


is thrust on the base plate


40


of the support


24


so that the attachment base


10


is fixed on the base member main body


9


, thereby constituting the base member


5


as shown in FIG.


2


.




The deadweight member


6


, as shown in

FIG. 3

, is formed in a disc shaped plate or polygonal shape with the center opened, and has a pair of overhang portions


50


protruding to the inner portion of the deadweight member


6


in opposition to each other on the inner peripheral portion of the deadweight member


6


. Each of the overhang portion


50


is formed, in the center thereof, with an engaging groove


51


which engages with the protruding portion


33


of the attachment base


10


. The deadweight member


6


may be formed of any material having a heavier weight than other materials, and usually it is preferably formed of metal.




As shown in

FIG. 3

, the attack ring


7


is a disc shaped member with its center opened circularly, and a pair of overhang pieces


52


is formed in opposition to each other on the inside of the opening, the inner peripheral portion of each overhang piece


52


having a circular arc shape and a size to fit to the attachment base


10


of the base member


5


. An engaging piece


53


is protrusively formed in the center of the inner peripheral portion of each of the overhang pieces


52


. The distance between the two engaging pieces


53


is set in such a manner as to be substantially equal to the distance between the notch portions


34


of the attachment base


10


. Note that a plurality of attacking wings


54


to attack other toy tops are formed on the peripheral surface of the attack ring


7


, and an engaging portion


56


to engage with engaging pieces


55




a


which are protrusively formed in both side portions of a chip


55


pasted with a seal (not shown) painted with famous characters or symbols is formed on the upper surface of the attack ring


7


.




Next, in order to assemble the members structured as explained above, first, the deadweight member


6


is put on the base member


5


and the protruding portion


33


of the attachment base


10


and the engaging groove


51


of the overhang portion


50


of he deadweight member


6


are engaged. The attack ring


7


is put on the deadweight member


6


, and the engaging piece


53


of the attack ring


7


and the notch portion


34


of the attachment base


10


of the base member


5


are positioned so as to conform to each other, and the attack ring


7


is pressed downward. In this way, the overhang piece


52


of the attack ring


7


abuts against the support piece


35


of the attachment base


10


, and the engaging piece


53


faces the attachment groove


36


. Then, the attack ring


7


is rotated clockwise and the engaging piece


53


is permitted to slide along the attachment groove


36


of the base member


5


up to the end portion thereof and the attack ring


7


is assembled into the base member


5


. According to the foregoing procedure, the toy top having the deadweight member


6


and the attack ring


7


mounted on the base member


5


can be constituted.




The shooter


2


is constituted by a shooter main body


60


and a rack belt


62


, which permits a rotating body


61


rotatably attached to the base portion of the shooter main body


60


to spin (see

FIGS. 6A

to


6


C). The shooter main body


60


is a hollow box, and on both side surfaces thereof, inserting hole


63


in which the rack belt


62


is inserted is formed. In the interior thereof, the spin imparting mechanism A to impart a torque to the toy top


1


and the locking mechanism B to lock this spin imparting mechanism A are arranged.




The spin imparting mechanism A is constituted by a driving shaft


66


which comprises a pinion gear


64


engaged with a rack gear


62




a


of the rack belt


62


and a ratchet gear


65


integrally formed on the same shaft with the pinion gear


64


, and the locking mechanism B is constituted by a ratchet claw


68


energized so as to be engaged with the ratchet gear


65


at all times by a spring


67


.




when the rack belt


62


is inserted, this ratchet claw


68


is pushed down in opposition to the spring


67


and disengaged from the ratchet gear


65


, and at the time of pulling out operation of the rack belt


62


, the pinion gear


64


is rotated. When the rack belt is pulled out until the rack belt


62




a


and the pinion gear


64


are disengaged from each other, pressing pressure of the ratchet claw


68


is released so that the ratchet claw


68


is energized by the spring


67


to rise up and be engaged with the ratchet gear


65


(the driving shaft


66


) to immediately lock the rotation of the ratchet gear


65


(see FIGS.


7


A and


7


B).




As shown in

FIG. 8

, a shaft body


70


is formed in the lower portion of this driving shaft


66


, and this shaft body


70


is protruded downward from the base of the shooter main body


60


. This shaft body


70


is a square shaft with a top end portion


70




a


thereof being formed in a cylindrical shape, and the square shaft portion fits into an angle hole


72


formed in the center of an S letter shaped stabilizer


71


, the stabilizer


71


and the driving shaft


66


integrally rotating.




The top end portion


70




a


of the shaft body


70


is inserted into a shaft hole


73


which is formed in the center of the rotating body


61


, and a screw


76


is screwed into a screw hole


74


formed in the top end portion


70




a


via a washer


75


so that the rotating body


61


is attached to the shaft body


70


so as to freely rotate.




This rotating body


61


has a circular engaging recessed portion


77


formed on the upper surface thereof, and a waveform engaging groove


78


which engages with the stabilizer


71


is provided on the inner peripheral surface of this engaging recessed portion


77


, and two engaging plates


79


which engage with the toy top


1


being formed by being protruded downward (see FIGS.


6


B and


6


C).




As shown in

FIG. 9A

, the game board


3


is constituted by a base board


80


which is formed in a trapezoid shape of raw material of non-magnetic substance such as plastic and a game board


81


which is stacked on this base board


80


so as to cover the same. The game surface which is the upper surface of the game board


81


is formed in a concave surface shape, and is formed to have a size enough to permit a plurality of toy tops


1


to spin simultaneously.




The base board


80


can be provided with a magnet


82


as a change means to act on the magnet


25


, this magnet


25


is a change means being provided in the toy top to impart a change to the operational mode of the toy top. An upper surface


83


of the base board


80


is formed in a concave shape and a large number of circular recessed portions


84


are formed on the upper surface


83


of the base board


80


, a disc shaped magnet


82


can be fitted into this recessed portion


84


. This magnet


82


is mounted on a magnet casing


85


, and the magnet casing


85


can be fitted into the recessed portion


84


on the game surface


83


.




The magnet case


85


is formed with a low cylindrical shape, and a circumferential wall


86


is notched at opposing positions, and a pair of nipping pieces


87


being provided in each notched portion. This magnet casing


85


is available in two types: one for a thick magnet


82


having a strong magnetic force as shown in FIG.


10


A and another for a thin magnet


82


having a weak magnetic force as shown in FIG.


10


B. The magnet casing


85


mounted with the magnet


82


having a strong magnetic force comprises the nipping pieces


87


which are long and the magnet casing


85


mounted with the magnet


82


having a weak magnetic force comprises the nipping pieces


87


which are short.




A game surface


90


of the game board


81


which is stacked on the base board


80


is formed with the same rate of curvature as that of the upper surface of the base board


80


, and the back of the game surface


90


is closely mounted on the upper surface of the base board


80


. Further, a plurality of wall surfaces


91


are protrusively formed on the outside of the game surface


90


. This wall surface


91


functions as a protective relief wall that returns toy tops


1


, which strike against one another and are driven out of the game board, to the game surface


90


.




This game board


81


is formed of transparent resin so that a position of the arranged magnet


82


can be seen by a player. However, it may be formed of opaque resin so that the position of the arranged magnet


82


cannot be seen by a player.




Note that in this embodiment the base board


80


has the recessed portion


84


formed therein to which the magnet


82


is attached. However, the game board


81


may be formed so that the magnet


82


may be pasted on the back thereof by adequate means such as double-coated tape and the like.




Next, the usage mode of the toy top


1


as constituted above will be described.




First, in order to spin the toy top, the toy top


1


is set on the shooter main body


60


. At this time, as shown in

FIG. 11A

in which the engaging plates


79


are cut away, the top end of the engaging plate


79


formed on the rotating body


61


of the shooter main body


60


is inserted into a space “a” formed between the attack ring


7


and the attachment base


10


of the toy top


1


, and as shown in

FIG. 11B

, the rotating body


61


is rotated counter-clockwise so that the engaging plate


79


of the rotating body


61


engages with the support piece


35


of the attachment base


10


. At this time, the engaging plate


79


is positioned in the top end side of the space “a” and a space is formed in the rear end side of the space “a”.




In this state, the rack belt


62


is inserted sufficiently into the inserting hole


63


of the shooter main body


60


. In the state in which the rack belt


62


being inserted, the ratchet claw


68


, which is a locking mechanism, is pushed down by the rack belt


62


so that a locking state of the ratchet gear


65


is released. Next, when the rack belt


62


is operated to be pulled out with vigor, the pinion gear


64


engaged with the rack gear


62




a


is vigorously rotated and the rotating body


61


integrated with this pinion gear


64


is rotated, so that the toy top is also vigorously spun by being linked with the rotation of the rotating body


61


. When the rack belt


62


is pulled out, the rack gear


62




a


and the pinion gear


64


are disengaged from each other, and at the same time pressing pressure of the ratchet claw


68


by the rack belt


62


is immediately released so that, by being energized by the spring


67


, the ratchet claw


68


rises up (see

FIG. 7B

) to lock the ratchet gear


65


, thereby stopping rotation of the rotating body


61


immediately.




Even when the rotation of the rotating body


61


stops, the toy top


1


spins by inertia and spins counter-clockwise against the engaging plate


79


, and therefore, the engaging plate


79


relatively moves toward the rear end side of the space “a” and thus the engagement between the engaging plate


79


and the support piece


35


of the attachment base


10


is released. At the same time, since the rear edge of the engaging plate


79


is formed obliquely, the toy top spins vigorously to separate from the shooter main body


60


and drops on the game board


3


and spins on the game board


3


.




The toy top


1


which spins on the game board


3


changes its operational state due to the relationship between the magnet


25


in the toy top


1


and the magnet


82


arranged on the game board


3


. For example, when the toy top


1


, in which the lower part of the magnet


25


is set so as to have N polarity, is spun on the game board


3


, as shown in

FIG. 12A

, with the upper surface of the magnet


82


having N polarity on the game board


3


, the toy top


1


moves like a flash of lightening so that it can smash against the toy top


1


′ of the competitor. When the magnet


82


is arranged to have S polarity on the upper surface, as shown in

FIG. 12B

, the toy top


1


can continuously spin in a steady state without being driven out by the toy top


1


′ of the competitor even when hit by the same. Further, as shown in

FIG. 12C

, in the case where the magnet having S polarity is arranged in the portion where there is no protective wall, even when the toy top


1


is driven out by the toy top


1


′ of the competitor toward the portion where there is no protective wall, it is attracted by the magnet and its repelling force is weakened, and thereby it is not driven out of the game surface.




As shown in

FIG. 12D

, by focusing the magnets having N polarity to the center of the game surface, the spinning position of the toy top


1


can be made much more steady. When the toy top


1


smashes against the toy top


1


′ of the competitor, though it drives out the toy top


1


′ of the competitor, it is not driven out by the toy top


1


′ of the competitor. As shown in

FIG. 12E

, by focusing the magnets having S polarity to the center of the game surface, the toy top


1


can be quickly moved to the center of the game surface on the recessed surface and quickly brought into contact with the toy top


1


′ of the competitor, so that outcome of the game can be quickly decided.




As described above, when the magnet


82


is arranged on the game board


3


, by selecting the arrangement position of the magnet


82


and the polarity of the magnet


82


, the toy top can be permitted to have a variety of operational modes so as to increase the pleasure of playing the game. It is not necessary to set all the magnets


82


to have the same polarity. The operational modes of the toy top can be made even more rich in variety, and the pleasure of playing the toy top game can be further increased by setting the magnets on the game board so that S polarity and N polarity coexist.




Next, the toy top provided with the magnet, which is change means, in the shaft body will be described. As shown in

FIG. 13

, this toy top has a circular opening portion


101


formed on the base of a base member main body


100


, and a shaft body


102


can be protruded from this opening portion


101


. This shaft body


102


is made of a transparent ABS resin and has a housing recessed portion


104


to house a magnet


103


, which is a change means, formed on the upper surface. A deadweight portion


105


is formed the circumferential edge of the top of the shaft body


102


, and by inserting the shaft body


102


into the opening portion


101


from the inner side of the base member main body


100


, the shaft body


102


can be attached to the base member main body


100


.




Assembling of the toy top may be executed in such a manner that the shaft body


102


is inserted into the opening portion


101


from the inner side of the base member main body


100


, and after the top end of the shaft body


102


is protruded from the base of the base member main body


100


, the magnet


103


is housed in the housing recessed portion


104


and a fixing ring


106


is placed on the magnet


103


, and similarly to the toy top


1


, the attachment base


10


is fixed by the fastener


17


to constitute a base member


5


′ (see FIGS.


14


and


15


).




The base member


5


′ (as shown in

FIG. 15

) constituted in this way has, similarly to the toy top


1


, a deadweight member


6


′ stacked thereon, the protruded portion


33


of the attachment base


10


and the engaging groove


108


of the overhang portion


107


of the deadweight member


6


′ are brought into engagement, an attack ring


7


′ is stacked on the deadweight member


6


′, an engaging piece


110


of the attack ring


7


′ and the notch portion


34


of the attachment base


10


are positioned so as to conform to each other and the attack ring


7


′ is pressed downward. In this way, an overhang piece


111


of the attack ring


7


′ abuts against the support piece


35


of the attachment base


10


, and the engaging piece


110


faces the attachment groove


36


. Then, the attack ring


7


′ is rotated clockwise so that the engaging piece


110


is permitted to slide along the attachment groove


36


of the attachment base


10


to the end portion thereof, thereby assembling the attack ring


7


′ into a base member


10


′ (see FIG.


15


). According to the above described procedure, the toy top


1


′ having the deadweight member


6


′ and the attack ring


7


′ stacked on the base member


5


′ can be constituted (see FIG.


16


).




According to the toy top using the base member


5


′ constituted as explained above, since the distance between the magnet


82


and the magnet


103


arranged on the game board


3


is close, the toy top is repelled or attracted by a strong force, and the movement of the toy top on the game board


3


becomes dynamic, thereby frequently causing the toy tops to smash into each other, to make the toy top game even more exciting.




According to the first aspect of the invention, the change means is provided for changing the operational modes of the toy top, without the spinning toy top being influenced by the player directly or indirectly. Hence, the toy top makes unexpected movements and thus the pleasure of playing the game is increased. By turning the change means into magnets, the magnet provided on the toy top and the magnet provided on the game board repel or attract each other. Therefore, when the magnets repel each other, the moving speed of the toy top is accelerated so that it can smash against the toy tops of the other competitors or avoid the attacks of the toy tops of the competitors. When the magnets are attracted to each other, even if the toy top is driven out by the toy tops of the other competitors, the brake is applied so that a force to inhibit the flying out of the toy top from the game board is imposed, thereby allowing the toy top to continue competing against the toy tops of the other competitors.




According to the second aspect of the invention, any fitting recessed portion can be selected from among the fitting recessed portions formed in the game board and the magnets can be arranged therein so that the operational modes of the toy top can be set to a variety of forms. Furthermore, when the game board is made opaque, the location of the magnet cannot be seen and, therefore, the movement of the toy top becomes mysterious, which can enhance interest in the toy top game much more.




According to the third aspect of the invention, the toy top can be spun only by the pulling out operation of the rack belt which is inserted into the shooter and therefore no difficult operation for spinning the toy top is required. Thus the toy top game can be enjoyed even by young people.




(Description of Reference Numeral)






1


toy top






2


shooter






3


game board






25


change means (magnet)






62


rack belt






80


game board






81


base board






82


change means (magnet)






103


change means (magnet)




A spin imparting mechanism




B locking mechanism



Claims
  • 1. A toy top game unit comprising:a toy top, driving means for rotating said toy top, including a spin imparting means to impart a spinning force to the toy top, a locking means to lock the spin imparting means and a rack belt, the spin imparting means is operated by linking it with a pulling-out operation of said rack belt inserted into the driving means, and when the rack belt is pulled out from the driving means, the locking means starts and the spin imparting means immediately stops, and the toy top is provided with a linking portion to link the toy top with the spin imparting means, and the toy top, which spins by linking it with the operation of the spin imparting means, spins by inertia after the stopping of the spin imparting means and a linkage with the spin imparting means is disengaged; a game board for receiving said toy top thereon, and means for interacting the toy top and the game board, and for imparting a change to an operational mode of the toy top on said game board, said interacting means including first magnet means arranged on the toy top and second magnet means arranged on the game board.
  • 2. The game unit according to claim 1, wherein the game board comprises a base board having an upper surface thereof and a game board mounted on the upper surface of the base board, said upper surface of said base board being provided with a receiving means for receiving said second magnet means therein, said game board being detachably mounted on said upper surface of said base board.
  • 3. The game board according to claim 2, wherein at least a portion of said game board covering said upper surface of said base board is made transparent.
Priority Claims (1)
Number Date Country Kind
2001-300373 Sep 2001 JP
US Referenced Citations (12)
Number Name Date Kind
2774185 Kosch Dec 1956 A
3572719 Span et al. Mar 1971 A
3783550 Andrews Jan 1974 A
4043558 Star Aug 1977 A
4200283 Andrews et al. Apr 1980 A
4200289 Bosley Apr 1980 A
4538999 Orlowski Sep 1985 A
4630822 Massaglia Dec 1986 A
4828258 Gebert May 1989 A
5135425 Andrews et al. Aug 1992 A
5518437 Nonaka et al. May 1996 A
6150913 Simmons Nov 2000 A
Foreign Referenced Citations (2)
Number Date Country
2371496 Jul 2002 GB
9-155067 Jun 1997 JP
Non-Patent Literature Citations (1)
Entry
Osawa, US 2002/0102907 A1, Aug. 1, 2002.