Abstract: A motor drive circuit 1 is driven by a DC power source 2 connected to power source terminals Tv1, Tv2 and has a first drive transistor Q1 for controlling a drive current supplied to a first terminal Tm1 of a motor from the DC power source 2, a second drive transistor Q2 for supplying current drawn from the first terminal Tm1 of the motor 3 to a ground, a third drive transistor Q3 for controlling a drive current supplied to a second terminal Tm2 of the motor 3 from the DC power source 2, a fourth drive transistor Q4 for drawing current from a second terminal Tm2 of the motor 3, a drive control circuit 4 for controlling the operation of the motor 3 by controlling the drive transistors Q1 through Q4 in response to a first and second control signal supplied to a first and second control terminal Tc1, Tc2, a first control transistor Qc1 having the same polarity as, and connected in parallel to and in the reverse direction of, the second drive transistor Q2 and a second control transistor Qc2 having the same polari

Abstract: A horse racing game apparatus for simulating horse races has a game board with race courses established thereon and a plurality of simulated racehorses movable along the race courses for ranks. A central field is disposed on the game board and defines an inner circumferential path for the race courses. The central field is selectively extensible and contractable in at least one direction. The horse racing game apparatus also has a start gate for indicating a start position for the race courses. The start gate is disposed so as to be movable along the race courses. The start gate is angularly movable between a first position in which it lies over and across the race courses and a second position in which it is retracted away from the race courses.

Abstract: A racing game machine includes an endless plate member formed with running lanes on a top surface thereof, the endless plate member having a grade-separated intersection portion; endless transporting chains provided below the endless plate member, each endless transporting chain having a magnetic portion; guide members provided below the endless plate member, each guide member being operable to hold one of the endless transporting chains within respective courses corresponding to the running lanes; a moving mechanism operable to move the endless transporting chains independently of one another along the respective guide members; running objects each having a magnetic portion; and a controller operable to control the moving mechanism in accordance with a predetermined game program.

Abstract: A power supply device includes a power supply member having: a first conductive plate electrically connected with one of positive and negative terminals of a power source; a second conductive plate electrically connected with the other terminal; a first insulating layer provided between the first conductive plate and the second conductive plate; a second insulating layer provided on an outside surface of the second conductive plate; a plurality of supply electrode members attached on an outside surface of the second insulating layer, the plurality of supply electrode members being spaced from one another, one supply electrode member being electrically connected with the first conductive plate, another supply electrode member adjacent to the one supply electrode member being electrically connected with the second conductive plate; a plurality of current collecting electrode members provided in a movable object which is movable on a specified plane, one of at least two current collecting electrode members being

Abstract: A game machine includes: a running body which is movable on a support path; and a movable object which is movable as the running body moves and runs on a running path which is at least partly not parallel to the support path and located above the running body. The movable object and the running body are magnetically attracted. The magnetic attraction position can be changed.

Abstract: A racing game machine includes an endless plate member formed with running lanes on a top surface thereof, the endless plate member having a grade-separated intersection portion; endless transporting chains provided below the endless plate member, each endless transporting chain having a magnetic portion; guide members provided below the endless plate member, each guide member being operable to hold one of the endless transporting chains within respective courses corresponding to the running lanes; a moving mechanism operable to move the endless transporting chains independently of one another along the respective guide members; running objects each having a magnetic portion; and a controller operable to control the moving mechanism in accordance with a predetermined game program.