JPH0365054B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field> The present invention relates to a radio-controlled transmitter that sends a control signal to a controlled object such as a radio-controlled car.

<Prior art and its drawbacks> A radio-controlled transmitter that wirelessly controls a controlled object such as a radio-controlled car or a radio-controlled airplane has a stay that adjusts the speed and direction of travel, and a trim that finely adjusts the control amount by operating this stay. It is common to arrange a pair of each on the left and right sides of the transmitter body. For example, in the case of a radio-controlled car, the speed control stake is placed on the left side, while the direction control stick is placed on the right side. By moving the left stick up and down with your left thumb, you can control the radio-controlled car's servo motor or engine. By adjusting the rotation speed of the steering wheel and moving the right stick left and right with the thumb of the right hand, the steering direction is changed and the direction of travel is changed. In addition, a ratchet type trim is placed near the left stay and right stay. For example, when adjusting the speed and direction when the stay is in neutral, slide the left trim up and down with your left thumb. In addition to finely adjusting the speed by moving the wheel, he also slides the right trim left and right with his right thumb to subtly change the direction of travel, improving his maneuvering technique.

However, in this type of ratchet type trim, the speed and direction are adjusted by increasing or decreasing the resistance value of the variable resistor for each pitch, so the correction amount is adjusted in stages, and the variable range is the sliding width of one pitch. There was a problem that it was difficult to operate smoothly because the adjustment range was restricted. In addition, when operating this trim, you usually have to remove your thumb from the stay and operate only the trim. For example, when driving a radio-controlled car "in a straight line and in corners at high speed" However, it was difficult to make full use of advanced maneuvering techniques in vehicles that required delicate speed adjustments and steering operations.

<Object of the Invention> The present invention has been made in view of the above circumstances, and includes an up-down counter section as a trim correction means, and a trim for adjusting the correction amount of the trim correction means in the transmitter body. By placing it in a position where all four fingers other than the thumb can reach,
The purpose of the present invention is to provide a radio-controlled transmitter that can achieve advanced control performance by finely adjusting the speed of movement of a controlled object, etc., and by operating the stick with the thumb and the trim with the other fingers. .

<Configuration and Effects of the Invention> The present invention includes a stake that controls the traveling speed of a steered object, and a trim that corrects a control amount based on the operation of the stake, and sends a control signal to the steered object. In the radio-controlled transmitter, the trim consists of an up switch and a down switch, and a trim correction means equipped with an up-down counter section that sets a correction amount based on the operation of each switch is connected to the control means of the stake, The present invention is characterized in that the trim of the trim correction means is disposed on the transmitter body within the reach of all four fingers except the thumb.

When the radio-controlled transmitter of the present invention is configured as described above, it is equipped with an up switch and a down switch as trims for setting the correction amount.
By holding down either switch, you can increase or decrease the amount of correction continuously.
Since it can be operated instantaneously, it is possible to fine-tune the moving speed and direction of the steered object. In addition, the trim, which consists of an up switch and a down switch, is placed within the reach of all four fingers (excluding the thumb) on the transmitter body, making it possible to operate the stay with the thumb while operating the trim with other fingers. Become. Therefore, the stay and trim can be operated at the same time, making it possible to realize advanced maneuvering techniques for the steered object. And since this trim can reduce the amount of correction when pumping,
In particular, when the object to be operated is a radio-controlled car, fine trim adjustment becomes highly accurate, and driving performance is dramatically improved not only for electric cars but also for engine cars.
Furthermore, since the variable range of the direction of movement can be finely adjusted for controlled objects such as radio-controlled airplanes and radio-controlled motorboats, advanced control techniques can be used.

<Example> An example of the radio-controlled transmitter of the present invention applied to a radio-controlled car will be described below based on the drawings.

FIG. 1 is a front view of a radio-controlled transmitter according to an embodiment of the invention.

The radio-controlled transmitter has a substantially rectangular shape with stakes 2, 3 and auxiliary trims 4, 5 disposed on the left and right sides of a transmitter main body 1, and a power switch 6 provided in the center. Trims 7 and 8 are arranged on the left and right sides of the top surface, and an antenna 9 is also provided. Further, the transmitter main body 1 includes a trim correction means 10, a control means 14, a transmission circuit (not shown), etc., and is capable of transmitting a control signal to a radio-controlled car, which is a controlled object.

The stays 2 and 3 are operating rods that control the speed and direction of movement of the radio-controlled car, and the left stick 2 is for speed control and can be moved up and down. When you raise it, the rotation speed of the radio-controlled car's servo motor increases, speeding it up. On the other hand, when the left stay 2 is lowered, it moves backward and can be stopped at the neutral position. In addition, the right stick 3 is for direction control and can be moved left and right, and when you move this right stick 3 left and right with your right thumb, the steering wheel of the radio-controlled car changes left and right, and the direction of movement of the radio-controlled car can be changed. It's becoming like that.

The auxiliary trims 4 and 5 are of a ratchet type and correct the control amount by changing the resistance of trim volumes 4a and 5a, which will be described later, by sliding each pitch with the thumb. are placed near each other.

In this example, since the trims 7 and 8 are provided, the auxiliary trims 4 and 5 can be omitted.

The trims 7 and 8 are for finely adjusting the traveling speed and direction of the radio-controlled car, and each of the left and right trims 7 and 8 is equipped with a set of up switches 7a, 8a and down switches 7b, 8b, and the transmitter body 1 is arranged inclined on the upper surface of the When the up switch 7a of the left trim 7 is pressed with the index or middle finger of the left hand, the speed of the radio-controlled car increases slightly, while when the down switch 7b is pressed, the speed can be decreased slightly. Furthermore, when the up switch 8a of the right trim 8 is pressed with the index or middle finger of the right hand, the steering of the radio-controlled car moves slightly to the left, while when the down switch 8b is pressed, the steering moves slightly to the right.

FIG. 2 is a circuit diagram of the trim correction means of the radio-controlled transmitter.

The trim correction means 10 includes an up-down counter section 11 and a ladder resistance section 12 as main parts, and is connected to a mixing section 14a of a control means 14 housed in the transmitter main body 1.

The up-down counter 11a of the up-down counter section 11 is connected to the other ends of the up switch 7a and the down switch 7b of the trims 7 and 8, and the other ends of each of the switches 7a and 7b are grounded. The up-down counter 11a is supplied with DC power B and a predetermined clock pulse is introduced from the clock pulse generator 11b, and by pressing either the up switch 7a or the down switch 7b, the count value is increased or decreased and corrected. It is now possible to set the amount. Further, a ladder resistor section 12 for converting the counter value into analog is connected to the output side of the up-down counter 11a. The ladder resistor 12a of this ladder resistor section 12 has one end connected to a DC power source B.
The other ends of the resistor R1 and the resistor R2, one end of which is grounded, are connected to
1. OP amplifier 1 for DC amplification is connected to the connection part of R2.
3 is connected. And this OP amp 1
The output side of trim 7,
The control amount controlled by the stakes 2 and 3 can be corrected by changing the counter value and setting the correction amount by the operation of 8.

The control means 14 includes a mixing section 14a, an encoder IC 14b, etc.
3 and trims 7 and 8, the control amount or correction amount is output to the next-stage transmitting circuit. The mixing section 14a has one end connected to a DC power source B.
Stake volumes 7c and 8c, which are made up of variable resistors connected to the stakes 2 and 3 and whose other ends are grounded, are connected via a resistor R4, so that it is possible to introduce a control amount according to the operation of the stakes 2 and 3. Further, trim volumes 4a and 5a, each consisting of a variable resistor whose one end is connected to the DC power supply B and the other end is grounded, are connected to the mixing section 14a via a resistor R5, and the auxiliary trims 4 and 5 are connected to the mixing section 14a. It is possible to introduce an adjustment amount according to the operation. As a result, the mixing section 14a mixes and adjusts two systems of signals: the control amount by the stakes 2 and 3 and the correction amount by the trims 7 and 8, and outputs the mixture to the encoding IC 14b. This encoder IC 14b is connected to the mixing section 14.
Based on the output of a, a traveling speed signal or a traveling direction signal is set to the receiver of the radio-controlled car, and is output to the transmitting circuit. A signal is sent from the transmitter to the receiver to drive the servo motor or steering wheel.

Next, the operation of the radio-controlled transmitter will be explained.

When operating a radio-controlled car using the radio-controlled transmitter of this invention, use the left and right thumbs to control the station 2,
While operating 3, operate trims 7 and 8 with your index or middle finger. For example, when driving on a complex course such as an S curve or a hairpin curve, a combination of driving methods such as out-in-out and turns is used, but when entering a corner from a straight line or entering a curve in the opposite direction from a corner. In such cases, while adjusting the speed with the left stick 2 and left trim 7, finely adjust the left and right direction of movement with the right stick 3 and right trim 8. Further, when driving around a corner at a very low speed, the left stay 2 is held in the neutral position, and the up or down switches 8a and 8b of the right trim 8 are operated while operating the up switch 7a of the left trim 7. At this time, when the up switch 7a of the left trim 7 is pressed, the count value of the up-down counter 11a increases slightly, and the speed of the radio-controlled car increases slightly. On the other hand, when the down switch 7b is pressed, the counter value decreases and the speed decreases slightly. Also, when the up switch 8a or down switch 8b of the right trim 8 is pressed, the up/down counter 11
The counter value of a increases or decreases slightly, and the steering wheel is slightly moved left and right to change the direction of the radio-controlled car.

As explained above, the radio control transmitter of the present invention uses the up switch 7 as the trims 7 and 8 for finely adjusting the traveling speed and direction of the radio controlled car.
a, 8a and down switches 7b, 8b, the correction amount can be increased or decreased continuously by holding down either switch, and the variable range can be changed by instantaneous operation. can be made small, making it possible to finely adjust the speed and direction of the radio-controlled car. In addition, up switches 7a, 8a and down switches 7b,
The trims 7 and 8, each consisting of a set of 8b, are attached to the transmitter body 1.
Since it is placed on the top surface, you can freely use your index finger, middle finger, etc. in addition to your thumb, and you can use
Since trims 7 and 8 can be operated simultaneously, the control performance of the radio-controlled car is improved and advanced control techniques can be used.

Note that although the trim in this embodiment is placed on the top surface of the transmitter body, it may be placed on the back or other locations as long as fingers other than the thumb can reach and operate the trim. Further, although an embodiment in which the transmitter of the present invention is applied to a radio-controlled car has been described, it goes without saying that it can be widely applied to radio-controlled airplanes, radio-controlled motor boats, and the like.

[Brief explanation of drawings]

FIG. 1 is a front view of a radio-controlled transmitter according to an embodiment of the invention, and FIG. 2 is a circuit diagram of a trim correction means. 1...Transmitter body, 2, 3...Status,
7, 8...Trim, 7a, 8a...Up switch, 7b, 8b...Down switch, 10...Trim correction means, 14...Control means.

Claims (1)

[Scope of Claims] 1. A radio-controlled transmitter that is equipped with a stake that controls the traveling speed of a steered object, and a trim that corrects a control amount based on the stake operation, and that sends a control signal to the steered object, comprising: The trim consists of an up switch and a down switch, and a trim correction means equipped with an up-down counter section that sets a correction amount based on the operation of each switch is connected to the control means of the stake, and the trim of the trim correction means is controlled. A radio-controlled transmitter characterized by being placed on the transmitter body within the reach of all four fingers except the thumb.