JP3010368U - Drive force transmission device for radio control - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to reliably transmit the driving force of a servomotor to an operated device with a simple configuration. A radio in which the driving force of a servomotor is connected to a pulley provided with a U-shaped groove and a device to be operated in tension via a wire, and the wire is tensioned to the pulley side at the top of the pulley. Drive force transmission device for control.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drive force transmission device for radio control that can reliably transmit drive.

[0002]

[Prior art]

 BACKGROUND ART As a transmission device for driving a servomotor for radio control, a device for driving an aircraft ladder using a servo horn and a rod and a device for driving various operated devices by a servo horn and a wire are known. However, since the diameters of the servo horn and the driven device are different in such a transmission device, the displacement angle is different when the rotation angle is the same, and when two rods or wires are connected as a pair, one is in a tension state. However, the other one was in a loose state, and it was necessary to use a knuckle for fine adjustment in order to always maintain tension.

[0003] Also, in order to hold the wire in a tensioned state, a relay rod is interposed so as to have a cushioning effect. However, if the load of the operated device is large, the expansion becomes large and it is delicate. It was difficult to adjust the displacement and was not suitable for large load control.

Therefore, in the conventional technology, although the servo motor, the receiver, and the transmitter have become highly precise, delicate control and complicated control have become possible, but the drive force transmission section is insufficient. Yes As an individual operated device, for example, in the case of an airplane, there is no choice but to manufacture and adopt a connecting means that corresponds to the size of the aircraft and is optimal for the load each time, and lacks versatility as a component. At the same time, adjustment was extremely difficult and difficult to handle.

As a remedy for this, a countermeasure has been taken to eliminate a transmission loss during operation by combining a metal wire having a large steel property such as a piano wire and a lightweight and flexible balsa material in the operated device.

[0006]

[Problems to be solved by the device]

 The problem to be solved by this invention is that the drive of the servomotor cannot be accurately transmitted to the operated device with a simple configuration.

[0007]

[Means for Solving the Problems]

 This invention is simple in that the driving force of a servomotor is connected to a pulley having a U-groove and a device to be operated via a wire, and the wire is tensioned to the pulley side at the pulley nip to mount the device. The solution was to solve the problem by adjusting the configuration easily.

[0008]

【Example】

 FIG. 1 shows the configuration of an embodiment of the present invention, in which an airplane ladder is operated as a device to be operated. FIG. 2 shows an explanatory view of the essential parts of the embodiment of the present invention. 3 is a cross-sectional explanatory diagram of the pulley portion, and FIG. 4 is a plan explanatory diagram of FIG. FIG. 5 is an explanatory view using a spring as another embodiment and is omitted in the drawing. FIG. 6 shows a state in which the wire is biased by each tension roller as another embodiment. FIG. 7 shows another embodiment of FIG. 6 in which the tension roller is in the form of an integral link. FIG. 8 shows another embodiment of FIG. 6 in which the tension roller is formed in a Y shape. FIG. 9 is an explanatory view of a tension link, and FIG. 10 shows a configuration for transmitting a driving force via a pulley that is fixedly supported. 11 is an explanatory view seen from the side surface of FIG. 10, and FIG. 12 is an explanatory view of the tension roller portion. FIG. 13 is an explanatory diagram of a washer different from FIG.

Referring to FIG. 1 showing an application of the driving force transmission device according to the present invention, reference numeral 1 denotes an airplane, and a so-called well-known model airplane is used. 2 is a main wing, 3 is a tail, 4 is a ladder, and 5 is an elevator. Reference numeral 6 denotes a machine body, and an engine (not shown) is attached to the machine body 6 to rotate the propeller 7. Reference numeral 8 denotes a receiver, which receives a control signal from a transmitter (not shown) and outputs a corresponding control output signal to drive the servomotor 9.

A plurality of servo motors are usually used to perform operations such as engine rotation, ladder control, and elevator control. Further, although an example of using an airplane is shown in the illustrated example, it is used for an object that needs to be driven in an automobile, a ship, etc., and these target parts are the operated device 10.

Reference numeral 11 is a signal line of the servo motor, 12 is a drive shaft, and knurls 13 are provided on the outer peripheral surface. Reference numeral 14 denotes a pulley, which is made of synthetic resin or metal and has an insertion hole 74 in the center which is fitted into the drive shaft 12. A knurl 15 corresponding to the knurl 13 is provided on the inner peripheral surface of the hole 74. There is.

Further, the drive shaft 12 and the pulley 14 are fitted by knurling so as to have a non-slip action, but various means can be used, for example, they can be fixed to each other by a pin. Reference numeral 16 denotes a U-shaped groove, which is a groove for accommodating a wire to be described later, and its shape is not particularly limited. Reference numeral 17 is a retaining screw that prevents the pulley 14 from coming off from the drive shaft 12.

Reference numeral 18 denotes a concave groove, which is formed by cutting a part of the groove 16 toward the inside of the pulley 14 so that a wire, which will be described later, can be drawn from the groove 16 into the concave groove 18. . Reference numeral 19 is a screw hole provided in the groove 18, and a screw 20 is attached with a washer 21. Reference numeral 22 denotes a through hole, which is provided with an appropriate number of appropriate shapes to reduce the weight of the pulley 14. Reference numeral 23 is a mounting hole for tensioning the rod 24 so that the rod 24 and the like can be mounted as necessary.

In FIG. 5, 50 is a spring, one end of which is connected to the wire 29, the other end of which is locked to a pin 51 provided on the pulley 14, and the wire 29 is tensioned so as to be drawn toward the groove 18. Yes, in this case the screw 20 is unnecessary.

Next, to explain the embodiment with reference to FIG. 6, 33 and 33A are tension rollers for elastically biasing the wire 29. The tension rollers 33 and 33A are provided on each of the pair of left and right wires, and the wire 29 is connected by the rollers 33 and 33A. And is attached to the pulley 14 by the elastic support arm 35. Further, the supporting arm 35 is bent as shown in the drawing and is supported by using the mounting hole 23 and the through hole 22 so that it is supported without using any special mounting means, and the displacement of the pulley 14 is prevented. Balances the pressing force of the wire 29.

In FIG. 7, reference numeral 40 denotes an embodiment of a pulley used for relaying, which is rotatably attached to the machine body 6, connects the servo motor 9 and the pulley 14 with a rod 40, and connects the groove 16 to the groove 16. A wire 29 is mounted so that the operated device 10 is connected, the driving force from the servo motor 9 is transmitted to the relay pulley 14, and the operated device 10 is moved by the displacement of the relay pulley 14 as it is driven. It is designed to be operated.

In the tension roller shown in FIG. 9, the rollers 33 and 33A are formed of a comparatively lightweight material such as synthetic resin, and a supporting arm 35 having a small diameter is rotatably attached to the roller. By giving elasticity to 35 itself, the effect of pressing the wire 29 can be increased.

The washer 21 shown in FIG. 10 has a screw insertion hole 55 having a substantially oval shape, and the washer itself has an oval shape to form a groove 56 such as U for mounting the wire 29. The wire 29 is wound around the groove 56 to tension the wire 29 drawn into the groove 18, and the degree of the tension can be finely adjusted by sliding the washer itself through the oval screw insertion hole 55. Reference numeral 57 is an operating knob.

Further, in the embodiment shown in FIG. 7, the substrate 40 formed of a lightweight material such as synthetic resin and the tension link 61 by the rollers 33 and 33 A are shown, and the substrate 40 is connected to one part of the substrate 40. A hole 62 is formed, and rollers 33 and 33A are rotatably attached to other parts of the substrate 40 in an arrangement of an isosceles triangle centered on the hole. The tension link 61 is movably connected to a mounting hole 23 formed at a position facing the top of the wire 29 of the pulley 14 and guides the wire 29 by rollers 33 and 33A.

In the embodiment shown in FIG. 8, a tension link is formed in a substantially Y shape, and the connection hole 62 and the rollers 33 and 33A are arranged in an isosceles triangle shape.

[0021]

[Effect of device]

 As described above, according to the device of the present invention, a U-shaped groove or the like is formed on the rotary shaft of the servo motor driven by the output signal of the receiver for receiving the control signal from the radio control transmitter. The provided pulley is fitted and fixed, the pulley and the operated device are connected via a wire, and the wire is tensioned to the pulley side at the top of the pulley so that the servo motor can be driven reliably. It can be transmitted to the device, and the drive is transmitted by winding the wire around the circular pulley, so it is possible to suppress the slack of the wire when the pulley is rotated, one of which was seen especially in the case of the so-called link structure. The tension and the other side are buffered, and there is no inconvenience that delays occur in the operation, and stable operation can be performed.

Further, by fixing the wire so that it is pulled into the groove provided in the pulley and fixed to the pulley, a reliable mounting state can be obtained without slipping in the groove of the pulley, and the operated wire can be operated. Even if some looseness occurs in the connection with the device, it can be adjusted by pulling it into the groove so that a tension state can be easily obtained.

According to the second aspect, by fixing the drawn wire by a screw so as to maintain the tension state, there is an effect that the wire can be easily fixed in a fixed state. The tension can be finely adjusted only by sliding the washer with the guide washer, and it is easy to deal with the extension of the wire due to use.

According to the present invention, the wire is pulled into the groove by a spring and tensioned, and since the wire is always pulled in elastically, the tension with the operated device can always be maintained and the pulling by the spring allows the pulley to be displaced. It is practical because it can absorb the bending of the wire that occurs and is easy to handle, and because it is always held in tension, fine adjustments can be automatically made.

[0025] The means for maintaining the tension state of the wire can also be achieved as in claim 5, so that a reliable effect can be obtained. In claim 6, when the load on the operated device is large. Although applying a load directly to the servomotor adversely affects the motor, etc., relaying the pulley according to the present invention eliminates conduction loss and can transmit a reliable driving force.

Further, according to claim 7, the bending of the wire that occurs when the pulley is displaced causes one of the pair of rollers to be pressed by the tension, and the other of the pair of rollers presses the wire that is in tension to cause tension. Since the bending of the wire that occurs when the pulley is displaced is always suppressed, it is safe without contact with other operating parts, and it is simple without taking measures such as piano wire or balsa material used to prevent these. With such a structure, delicate control is possible.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part of an implementation state of the present invention.

FIG. 3 is an explanatory diagram of a pulley section.

4 is an explanatory plan view of FIG. 3. FIG.

FIG. 5 is an explanatory diagram of another embodiment.

FIG. 6 is an explanatory view of a state in which each tension roller is biased.

FIG. 7 is an explanatory diagram of another embodiment of FIG.

FIG. 8 is an explanatory view of another embodiment of FIG. 6 and is formed in a Y shape.

9 is an explanatory diagram of a main part of FIG. 7.

FIG. 10 is an explanatory diagram of an example of a configuration for transmitting driving force.

11 is an explanatory diagram viewed from the side surface of FIG.

FIG. 12 is an explanatory diagram of a tension roller unit.

FIG. 13 is an explanatory diagram of a washer different from FIG.

[Explanation of symbols]

 9 servo motor 10 operated device 14 pulley 16 groove 18 groove 21 washer 29 wire 33 roller 61 tension link

[Procedure amendment]

[Submission date] September 30, 1994

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

Claims (7)

[Scope of utility model registration request] 1. A pulley having a U-shaped groove is fitted and fixed to a rotary shaft of a servomotor driven by an output signal of a receiver for receiving a control signal from a transmitter for radio control, A drive force transmission device for radio control, wherein the pulley and the operated device are connected to each other via a wire, and the wire is tensioned and mounted on the pulley side at the top of the pulley. 2. A wire to be mounted is formed by forming a concave groove formed by cutting the groove of the pulley inward at a position which is the top of the wire of the pulley on which the wire for driving the operated device is mounted. 2. The drive force transmission device for radio control according to claim 1, wherein the drive force transmission device is tensioned toward the inside of the groove and fixed by a screw. 3. A screw for fixing the wire according to claim 2 is provided with a circular wire guide washer having an oval screw insertion hole, and the wire is tensioned through a washer. A driving force transmission device for radio control. 4. The drive force transmission for radio control according to claim 1, wherein the operated device and the pulley are connected to each other, and a wire for transmitting the rotation of the pulley to the operated device is tensioned by a spring. apparatus. 5. The operated device and a pulley driven by a servomotor are connected to each other by a wire, and a pair of tension rollers for tensioning the wire are elastically attached to the pulley to displace the pulley. The driving force transmission device for radio control according to claim 1, wherein the transmission force is transmitted via a wire that is tension-energized by. 6. The drive force transmission device for radio control according to claim 1, wherein the drive force of the servo motor is transmitted to the operated device by relaying a pulley that is rotatably fixed and supported. 7. The board to be operated is connected to a pulley driven by a servomotor by a wire, and a connecting hole is provided in the board, and a pair of tension rollers are arranged in an isosceles triangular shape around the hole. 2. The drive force transmission device for radio control according to claim 1, wherein the tension link is formed on the base of the pulley and the link is connected to a position facing the top of the wire of the pulley.