JPS6015596Y2 - Servo for radio control - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of radio-controlled servos used in model cars, ships, airplanes, helicopters, etc. In particular, a movable contact is attached to a servo horn fixed to the main shaft of a servo motor, and this contact This invention relates to a radio-controlled servo that can be used for multiple purposes by making the servo come into contact with a printed circuit board fixed to the surface of a casing.

Conventional radio-controlled servos only have the function of driving a servo motor in response to a signal from a transmitter, which operates a servo horn to change the direction of a model car or the like.

This invention adds an electric circuit opening/closing mechanism to the conventional radio-controlled servo, and can be used for operations other than changing the direction of a model car, such as blinking a direction indicator lamp or gradually accelerating from start to full speed. The purpose is to provide a servo for radio control that can perform the following functions.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing the disassembled state of the servo for radio control according to the present invention. In the figure, 1 is the servo motor built in the casing 2, 3 is the half shaft of the servo motor 1 projected outside the casing 2, 4 is a servo horn fixed to the main shaft 3 with a set screw 5.

This radio-controlled servo is attached to a model car, etc., and when the receiver 7 receives a signal emitted from the transmitter 6, the main shaft 3 of the servo motor 1 is driven, and the operating rod ( (not shown) operates to change the direction of travel of the model car, etc.

The present invention is a servo horn for such a radio-controlled servo, in which a printed circuit board 8 having wiring is fixed to the surface of the casing 2 from which the main shaft 3 projects so as to pass through the main shaft 3, and the printed circuit board 8 is fixed to the main shaft 3. 4 is attached with a movable contact 9 that operates together with the servo horn 4 and contacts the wiring printed on the printed circuit board 8.

In addition, 10 in the figure is a double-sided adhesive tape for fixing the printed circuit board 8 to the surface of the casing 2, but other than this, for example, the printed circuit board 8 can be directly fixed to the surface of the casing 2 using an adhesive. You can do it like this.

Further, 11 is a lug terminal, 12 is a screw for attaching the movable contact 9 to the servo horn 4, 13 is a nut screwed onto the screw 12, and 14 is a washer.

Figure 2 shows an embodiment in which the radio-controlled servo of the present invention is used to blink a direction indicator lamp.
In the figure, 21 is a right lamp, 22 is a left lamp, 23 is a flicker circuit unit, 24 is a power supply, and 25 is a switch, and the movable contact 9 attached to the servo horn 4 contacts the wiring on the right side of the printed circuit board 8. Then, at the same time as the model car or the like turns to the right, the right lamp 21 blinks due to the flicker signal, and on the other hand, when the servo horn 4 moves to the left due to the drive of the servo motor 1, the movable contact 9 moves to the printed circuit board 8.
When the model car or the like turns left, the left lamp 22 flashes in response to a flicker signal.

Therefore, it is possible to create a very interesting model car.

FIG. 3 shows an example in which the radio-controlled servo of the present invention is applied to regulating the speed of a model car, etc., in which an electric resistor 31 is inserted between wiring A and wiring B printed on a printed circuit board 8. The wiring A and the power source 32 are connected, and the wiring C and the power source 32 are connected.

On the other hand, the movable contact 9 attached to the servo horn 4 and the drive motor 33 are connected.

Therefore, when the servo horn 4 is actuated by a signal from the transmitter, the movable contact 9 changes its contact position from wiring A to wiring B on the printed circuit board 8, and at this time, since the electric resistor 31 is inserted, the model car starts. It takes a certain amount of time to reach full speed, resulting in extremely smooth acceleration.

As described above, the radio-controlled servo of the present invention has a servo motor driven by a signal from a transmitter built into the casing, the main shaft of the servo motor protruding outside the casing, and the surface of the casing from which the main shaft protrudes. A printed circuit board with wiring is fixed to the main shaft so as to pass through the main shaft, and a servo horn fixed to the main shaft is provided with a movable contact that operates together with the servo horn and contacts the wiring printed on the printed circuit board. Not only can you change the direction of movement of model cars and airplanes, but you can also
It is also possible to blink a direction indicator lamp and smoothly accelerate a model car, etc., thereby doubling the fun of radio cozi-related activities.

Note that when a large amount of electric power is required, the signal from the printed circuit board can be amplified and used, so it is ideal for models that require reduction in size and weight.

Furthermore, if a silver contact is used as a movable contact, contact resistance is reduced and noise troubles can be prevented.

By combining printed wiring and applying movable contacts in this manner, various operations that were previously impossible or difficult can be performed with a small number of channels, which is also economically advantageous.

[Brief explanation of the drawing]

FIG. 1 is an exploded front view showing an embodiment of the radio-controlled servo of the present invention, and FIGS. 2 and 3 are schematic diagrams showing examples of the use of the radio-controlled servo of the present invention. 1: Servo motor, 2: Casing, 3: Main shaft, 4: Servo horn, 5: Set screw, 6: Transmitter, 7: Receiver,
8 Niblint board, 9: Movable contact.

Claims (1)

[Scope of utility model registration request] A servo motor driven by a signal from a transmitter is built in the casing, the main shaft of the servo motor projects outside the casing, and wiring is provided on the surface of the casing from which the main shaft protrudes so as to penetrate the main shaft. A servo for a radio control, characterized in that a printed circuit board is fixed and a servo horn fixed to a main shaft is provided with a movable contact that operates together with the servo horn and contacts wiring printed on the printed circuit board.