Abstract: A chassis structure of a remote control crawler vehicle includes front and rear swing arm assemblies mounted symmetrically on a frame at two sides of a central separation driving box and respectively connected to front and rear bridges of the frame. The front and rear swing arm assemblies are each pivotally connected to the frame by means of a swing arm seat. The swing arm seat is formed with an axle hole extending in a vehicle body direction and having two ends each combined with a bearing for rotatably receiving and supporting a bridge swing arm. An opposite end of each bridge swing arm is mounted to the front and rear bridges so as to form a novel chassis structure of a remote control crawler vehicle. In this way, the front and rear bridges are allows to take up and down swings in a one-axis manner of movement.

Abstract: A chassis structure of a remote control crawler vehicle includes front and rear swing arm assemblies mounted symmetrically on a frame at two sides of a central separation driving box and respectively connected to front and rear bridges of the frame. The front and rear swing arm assemblies are each pivotally connected to the frame by means of a swing arm seat. The swing arm seat is formed with an axle hole extending in a vehicle body direction and having two ends each combined with a bearing for rotatably receiving and supporting a bridge swing arm. An opposite end of each bridge swing arm is mounted to the front and rear bridges so as to form a novel chassis structure of a remote control crawler vehicle. In this way, the front and rear bridges are allows to take up and down swings in a one-axis manner of movement.

Abstract: A shock absorber spring retention structure is provided for a remote control car. A spring is arranged between a shock absorption cylinder and a piston rod that are axially movable relative to each other to produce an effect of damping. The spring has a top supported on an adjustment ring that is threadingly screwed to an outer circumference of the shock absorption cylinder and a bottom having a wire rotatably coupled to a clip and held in position by a mounting seat to be coupled to a connection seat mounted to an end of the piston rod. The connection seat includes an engagement section with which the clip is engageable for locking. Thus, in the assembly of the shock absorber, the clip securely retains and couples the spring, the mounting seat, and the connection seat together to prevent the spring from detaching during the operation of the shock absorber.

Abstract: A shock absorber spring retention structure is provided for a remote control car. A spring is arranged between a shock absorption cylinder and a piston rod that are axially movable relative to each other to produce an effect of damping. The spring has a top supported on an adjustment ring that is threadingly screwed to an outer circumference of the shock absorption cylinder and a bottom having a wire rotatably coupled to a clip and held in position by a mounting seat to be coupled to a connection seat mounted to an end of the piston rod. The connection seat includes an engagement section with which the clip is engageable for locking. Thus, in the assembly of the shock absorber, the clip securely retains and couples the spring, the mounting seat, and the connection seat together to prevent the spring from detaching during the operation of the shock absorber.

Abstract: A hand-operating starting device with clutch structure is mounted to one side of an engine and includes a driving portion and a driven portion. The driving portion includes a housing. A rotary member that is received in the housing and has a pull cord wounded thereon is provided with an elastic member and an axle having a positioning pin projecting therefrom. The driven portion includes a cover that covers the housing. The cover receives therein a sleeve for driving the engine. The sleeve includes a helical channel and is fit over the axle with the positioning pin received in and guided by the helical channel. A bearing arranged between the driving and driven portions for rotatably coupling with the axle and an O-ring is arranged around the bearing. The engine has a main shaft having an eccentric peg having a slope surface formed on an outer end thereof.

Abstract: A hand-operating starting device with clutch structure is mounted to one side of an engine and includes a driving portion and a driven portion. The driving portion includes a housing. A rotary member that is received in the housing and has a pull cord wounded thereon is provided with an elastic member and an axle having a positioning pin projecting therefrom. The driven portion includes a cover that covers the housing. The cover receives therein a sleeve for driving the engine. The sleeve includes a helical channel and is fit over the axle with the positioning pin received in and guided by the helical channel. A bearing arranged between the driving and driven portions for rotatably coupling with the axle and an O-ring is arranged around the bearing. The engine has a main shaft having an eccentric peg having a slope surface formed on an outer end thereof.

Abstract: A hand-operating starting device with clutch structure is mounted to one side of an engine and includes a driving portion and a driven portion. The driving portion includes a housing. A rotary member that is received in the housing and has a pull cord wounded thereon is provided with an elastic member and an axle having a positioning pin projecting therefrom. The driven portion includes a cover that covers the housing. The cover receives therein a sleeve for driving the engine. The sleeve includes a helical channel and is fit over the axle with the positioning pin received in and guided by the helical channel. After the engine has been started up, a main shaft of the engine is no longer coupled to and thus impeded by the starting structure so as to avoid loss of power. And, no additional power consumption is needed for powering an electric starting device.

Abstract: A clamping device, for detaching a universal coupling of a remote controlled car shock absorber, comprises a horizontal roller, a holder, and a mobile element; wherein the horizontal roller is pivotally connected to the holder for rotation purpose; the mobile element is connected with the holder such that the mobile element can clamp and hold the axis of the shock absorber, and engage the universal coupling of the shock absorber into the engagement socket of the horizontal roller; by way of the rotation of the horizontal roller, the invention can allow the user to easily detach or assemble the universal coupling and adjust the coupling depth of the universal coupling via screwing without impairing the axis of the shock absorber during detaching, assembling or adjusting the universal coupling.

Abstract: A structure for stabilizing a center of gravity of a remote car has a chassis, a side of which is provided with a plurality of assembly holes; a bearer, which is provided with two standing edges of different heights, and a bottom surface and a top surface of which are provided respectively with a plurality of assembly holes. Through screw members, the bearer is assembled on the chassis of the remote car, and an engine body is assembled into the bearer, allowing the three to be formed into one entity. Therefore, through the unequal height standing edges at two sides of the bearer, the engine body is assembled in a titled fashion, enabling a center of gravity of the engine body to be located at a central position of the chassis.

Abstract: A clamping device for detaching the universal coupling of a remote controlled car shock absorber, which is composed of a horizontal roller, a holder, and a mobile element; the horizontal roller is pivotally connected to the holder for rotation purpose; the mobile element is connected with the holder such that the mobile element can clamp and hold the axis of the shock absorber, and engage the universal coupling of the shock absorber into the engagement socket of the horizontal roller; by way of the rotation of the horizontal roller, the invention can allow the user to easily detach or assemble the universal coupling and adjust the coupling depth of the universal coupling via screwing without impairing the axis of the shock absorber during detaching, assembling or adjusting the universal coupling.

Abstract: The system for power management and preventing unexpected acceleration contains a microcontroller unit, a tact switch, an electronic regulation device for preventing unexpected acceleration, a voltage detection switch, one or more light emitting diodes, resistors, capacitors, transistors, and an inductor. After a battery is installed on the remote-controlled toy car, the battery's electricity will flow through the electronic regulation device and the voltage detection switch. On the other hand, the microcontroller unit receives signals from a detection and reception circuit and controls the throttle through a servo motor. As such, the battery power and the received signals are monitored to prevent the remote-controlled toy car from unexpected acceleration.

Abstract: An anti-deflection structure for a chassis of a remote-controlled car includes a board which is added below a central differential gear at a center of a chassis, to strengthen a rigid structure of the chassis. A center of the board is provided with a hollow part for emplacing a gear set of the central differential gear, and an exterior side of the hollow part is provided with a plurality of pivoting holes. The pivoting holes correspond to through-holes on the chassis for locking the central differential gear, thereby locking and fixing the board. In addition, the hollow part is locked at columns of the central differential gear by transfixing screws from bottom to top into the pivoting holes and the through-holes. On the other hand, front and rear ends of the board provide for connection of two support arms, thereby constituting the anti-deflection structure for the chassis.

Abstract: An anti-deflection structure for a chassis of a remote-controlled car includes a board which is added below a central differential gear at a center of a chassis, to strengthen a rigid structure of the chassis. A center of the board is provided with a hollow part for emplacing a gear set of the central differential gear, and an exterior side of the hollow part is provided with a plurality of pivoting holes. The pivoting holes correspond to through-holes on the chassis for locking the central differential gear, thereby locking and fixing the board. In addition, the hollow part is locked at columns of the central differential gear by transfixing screws from bottom to top into the pivoting holes and the through-holes. On the other hand, front and rear ends of the board provide for connection of two support arms, thereby constituting the anti-deflection structure for the chassis.

Abstract: The present invention is structured from a driving portion and a driven portion. The driving portion includes a case and a hollow shaft sleeve that is located on a circumference thereof. A shaft penetrates the shaft sleeve, and a top end of the shaft is provided with a sleeve joint portion. A driving bevel gear is configured to a bottom end of the shaft, and a spring is installed on a bottom end of the sleeve joint portion to positionally fix the driving bevel gear in the case. A through hole is defined in a cover body of the driven portion, and a central shaft penetrates the through hole. A driven bevel gear is configured to one end of the central shaft, and another end of the central shaft is connected to remote control car engine. The driving bevel gear and the driven bevel gear assume a normally disengaged state.

Abstract: An improved suspending and stabilizing structure for a remote control car at least comprises a primary frame and two supporting arms moveably connected to two sides of the primary frame. The primary frame is provided with a holder on the bottom which can be provided with a cover at the front end. Besides, transmission shafts are connected to the primary frame for the installation of wheels. Corresponding holding holes and through holes are provided on the holder and the cover, respectively, while one end of the supporting arms may provided with a recession, on two sides of which are provided with corresponding holes. Threaded holes are provided at the outer sides of the holding holes and through holes, such that a front differential can be fastened thereto by way of screws, thereby the supporting arms can be lengthened to the greatest extent and that when the wheels run on rough roads, the oscillation range of the supporting arms can be reduced, thus enhancing the stability of the traveling vehicle.

Abstract: An improved auxiliary actuator for the engine of a remote control car is installed at one side of the engine of the remote control car and comprises a driving gear set and a driven gear set. The driving gear set includes a housing, which includes a hollow shaft sheath with a shaft connecting by a 45° angle to a side of the periphery of the housing. A connector is provided on the top of the shaft, while a driving bevel gear is provided at the bottom of the shaft and positioned inside of the housing. The driven gear set includes a cover provided above the housing. The cover has a through hole for receiving a one-way bearing which has a pivot inside. A driven bevel gear being engaged with the driving bevel gear is provided at one end of the pivot, while the other end of the pivot is connected to the engine drive. Accordingly, the engine of the remote control car can be actuated easily and promptly.

Abstract: An improved central speed control mechanism for remote control cars primarily comprises a housing and a cover, which are connectable to each other and are respectively provided with a pivot for connecting to the remote control car at one end and mounting helical gears at the other end. Inside of the housing is provided with a gear set, which comprises a positioning block, a plurality of bevel gears and axles. Axle holes are equally provided on the periphery of the positioning block, whereas a central hole with a cone surface is provided in the bevel gears for matching with the cone surface of the axle which is provided with a positioning pillar at the front end and a cone surface in the middle section. After the axle passes the end of the bevel gear provided with a O-ring through to the axle hole, and a washer is further provided at the rear of the axle to complete the assembly of the whole housing, the plurality of bevel gears of the gear set will engage with the helical gears of the two pivots.

Abstract: An improved suspending and stabilizing structure for a remote control car at least comprises a primary frame and two supporting arms moveably connected to two sides of the primary frame. The primary frame is provided with a holder on the bottom which can be provided with a cover at the front end. Besides, transmission shafts are connected to the primary frame for the installation of wheels. Corresponding holding holes and through holes are provided on the holder and the cover, respectively, while one end of the supporting arms may provided with a recession, on two sides of which are provided with corresponding holes. Threaded holes are provided at the outer sides of the holding holes and through holes, such that a front differential can be fastened thereto by way of screws, thereby the supporting arms can be lengthened to the greatest extent and that when the wheels run on rough roads, the oscillation range of the supporting arms can be reduced, thus enhancing the stableness of the traveling vehicle.

Abstract: An improved auxiliary actuator for the engine of a remote control car is installed at one side of the engine of the remote control car and comprises a driving gear set and a driven gear set. The driving gear set includes a housing, which includes a hollow shaft sheath with a shaft connecting by a 45° angle to a side of the periphery of the housing. A connector is provided on the top of the shaft, while a driving bevel gear is provided at the bottom of the shaft and positioned inside of the housing. The driven gear set includes a cover provided above the housing. The cover has a through hole for receiving a one-way bearing which has a pivot inside. A driven bevel gear being engaged with the driving bevel gear is provided at one end of the pivot, while the other end of the pivot is connected to the engine drive. Accordingly, the engine of the remote control car can be actuated easily and promptly.

Abstract: A speed control mechanism for model cars is disclosed. The mechanism comprises a housing and a cover, which are connectable to each other and are respectively provided with a pivot for connecting to a wheel. And, helical gears are provided on each end of the pivot so as to engage with the gear set in the housing. The gear set is composed of a positioning base and a plurality of bevel gears. By way of the engagement and transmission of the helical gears and the bevel gears, the pivots may provide excellent speed control, as well as sufficient twist force, to prevent wheels from slipping at the time of turning.