Abstract: An apparatus and method for coupling a plurality of detachable components from a transmitter unit used to control radio controlled (RC) models. Specifically, a steering unit and a grip unit may be coupled and decoupled from the main upper body unit comprising the transmitter. When coupling the steering unit to the upper body, guide projections on the steering unit are inserted into a corresponding number of groove guides defined within the upper body unit. A shutter stopper locks the guide grooves and prevents the guide projections from moving. The grip unit is similarly coupled to the upper body unit by means of a locking claw which maintains the grip unit in a fixed position until a release button is actuated by a user. The transmitter unit comprises the ability of providing for a number of different operational configurations, thus accommodating the needs and preferences of each user.

Abstract: An apparatus and method for coupling a plurality of detachable components from a transmitter unit used to control radio controlled (RC) models. Specifically, a steering unit and a grip unit may be coupled and decoupled from the main upper body unit comprising the transmitter. When coupling the steering unit to the upper body, guide projections on the steering unit are inserted into a corresponding number of groove guides defined within the upper body unit. A shutter stopper locks the guide grooves and prevents the guide projections from moving. The grip unit is similarly coupled to the upper body unit by means of a locking claw which maintains the grip unit in a fixed position until a release button is actuated by a user. The transmitter unit comprises the ability of providing for a number of different operational configurations, thus accommodating the needs and preferences of each user.

Abstract: The invention relates to a speed controller able to change a pulse frequency and a pulse width of a pulse signal to control a driving motor. This device is able to change the pulse frequency during the run of the toy car which adjusts the torque of the driving motor in response to the revolution number of the driving motor. The speed controller adjusts the pulse frequency to be large when the pulse width is small, while the pulse frequency is small when the pulse width is large.

Abstract: This invention provides an electronic switch for model cars to prevent incapability of the remote operation of the model cars.Keeping the manual switch 10 for a given period at ON state, a receiver 4 and a battery 5 are connected, and after a provisional OFF state of a manual switch 10, it is reset in ON state for a given period, to disconnect an electrical connection between the receiver 4 and the battery 5. For this sake, even if the manual switch 10 is abruptly changed over to OFF state upon abut to an obstacle during a run of the model car, the electrical connection between the receiver 4 and the battery 5 is not disconnected, as far as a given period continuation of the OFF state of the manual switch. With a use of the switching circuit 13, ON/OFF change over is provided without using a mechanical contact, which provides no anxiety of the disconnect of contact caused by the vibration.