JP3742764B2 - Model helicopter swash plate slide mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a swash plate slide mechanism of a model helicopter for controlling the lift by moving the swash plate of the helicopter up and down, that is, changing the pitch angle of the rotor, in order to bring the model helicopter into a hovering state.
[0002]
[Prior art]
An example for moving a swash plate of a conventional model helicopter up and down will be described with reference to FIG.
Reference numeral 1 denotes a frame, and 2 denotes a servo frame for mounting various servos 5, 9, and 13 to be described later. Reference numeral 3 denotes a mast that is rotated by a driving source such as an engine (not shown) fixed to the frame 1, and a swash plate 4 including an upper swash plate 4a and a lower swash plate 4b is attached so as to be tiltable and vertically movable.
[0003]
Reference numeral 5 denotes an aileron servo fixed to the upper surface of the servo frame 2, and one end of rods 6 and 6 'is connected to the rotating plate of the servo 5, and the other end of the rods 6 and 6' is L-shaped. The aileron links 7 and 7 'and other rods 8 and 8' are connected to opposite portions of the lower wash plate 4b. Then, by rotating the rotating plate of the aileron servo 5, the swash plate 4 swings in the left-right direction, so that the aircraft turns in the left-right direction.
[0004]
An elevator servo 9 is fixed to the servo frame 2 adjacent to the aileron servo 5 and is pivotally supported by a vertical movement shaft 12 that moves up and down with respect to the long hole 1b of the frame 1 via a rod 10. The elevator link 11 is connected to one end of the elevator link 11. A bifurcated portion of a bifurcated second elevator link 16 is pivotally supported on the elevator link 11 on which the rod 10 is pivotally supported, and the distal end side of the second elevator link 16 is connected to the rods 8 and 8 '. The tip end side is pivotally supported by a lower wash plate 4b which is shifted by 90 degrees from the position where the tip end is pivotally supported. Then, by rotating the rotating plate of the elevator servo 9, the elevator link 11 rotates and the second elevator link 16 moves up and down via the elevator link 11, so that the swash plate 4 swings back and forth. The aircraft tilts forward or backward.
[0005]
Reference numeral 13 denotes a pitch servo fixed to the side surface of the servo frame 2, and is connected to one end of a pitch link 15 pivotally supported on the vertical movement shaft 12 via a rod 14. The center of the pitch link 15 is pivotally supported by the fixed shaft 1 a and the other end is pivotally supported by the vertical movement shaft 12. A second pitch link 15a is pivotally supported between the fixed shaft 1a and the vertical movement shaft 12.
[0006]
In the swash plate slide mechanism configured as described above, when the aileron servo 5 is driven, the lower wash plate 4b swings left and right through the rods 6, 6 ', the aileron links 7, 7' and the rods 8, 8 '. Therefore, the aircraft turns in the left-right direction.
[0007]
Further, when the elevator servo 9 is rotated, the elevator link 11 is rotated via the rod 10, the second elevator link 16 is moved up and down via the elevator link 11, and the lower wash plate 4b is swung back and forth. Therefore, the aircraft will fly forward or backward.
[0008]
When the pitch servo 13 is rotated, the pitch link 15 is rotated about the fixed shaft 1a via the rod 14, and the vertical movement shaft 12 is moved up and down, so the aileron links 7, 7 'and rods 8, 8'. And the lower wash plate 4b is translated up and down via the elevator links 11 and 16.
[0009]
As described above, the lower wash plate 4b moves up and down with respect to the mast 2, so that the pitch angle of the rotor is displaced and the rotor is raised, lowered and hovered in relation to the rotational speed of the drive source.
[0010]
Next, another example of the conventional example will be described with reference to the schematic diagram of FIG. In addition, the same code | symbol as above-mentioned shows the same member, and abbreviate | omits description.
An elevator servo 9 is attached to the center of the servo plate 18 fixed to the servo frame 2, and an aileron servo 5 and a pitch servo 13 are attached to the left and right thereof. The elevator servo 9 is connected to an elevator link 15 and a rod 19 via a rod 14. To the lower wash plate 4b.
[0011]
In this conventional example, in order to tilt the lower wash plate 4b in the left-right direction, the rotating plate of the aileron servo 5 and the rotating plate of the pitch servo 13 rotate at the same rotation rate in the same direction, so that the aileron link. 7 and 7 'move in different directions, and the lower wash plate 4b can be tilted to the left and right while maintaining a fixed position with respect to the mast 3.
[0012]
Further, in this conventional example, in order to tilt the lower wash plate 4b in the front-rear direction, the rotating plate of the elevator servo 9 and the rotating plate of the pitch servo 13 rotate at the same rotation rate in the same rotation direction. By rotating the rotating plate of the servo 5 in the opposite direction at the same rotation rate, the elevator link 14 moves in a different direction from the aileron links 7, 7 ′, and the lower wash plate 4 b moves back and forth while maintaining a fixed position with respect to the mast 3. Can tilt.
[0013]
In order to move the lower wash plate 4b in the vertical direction for pitch control, the rotary plate of the elevator servo 9 and the rotary plate of the aileron servo 5 rotate at the same rotation rate in the same rotation direction, and the pitch servo 13 , The elevator link 14 and the aileron links 6 and 6 'move in the same direction. As a result, the pitch angle of the rotor is displaced and the relationship with the rotational speed of the drive source. Ascending, descending and hovering.
[0014]
[Problems to be solved by the invention]
By the way, in the above-described first conventional example, the operation of raising and lowering the helicopter can be performed by operating one lever of the transmitter, so that the operability is excellent. There is a problem that the structure becomes very complicated because the structure for moving up and down, that is, the fixed shaft 1a, the pitch link 11, the vertical movement shaft 12, and the like are required.
[0015]
In addition, in the second conventional example, in order to be able to move up and down by one lever of the transmitter as in the first conventional example, the transmitter side is installed with software different from the conventional one. A machine must be used, and for that purpose, a dedicated transmitter must be purchased, which burdens or confuses the player.
[0016]
The present invention is intended to solve the above-described problems, and the object of the present invention is to provide a model helicopter that has a simple structure, controllability for controlling the ascent and descent of the helicopter, and good operability. There is a swash plate slide mechanism.
[0017]
[Means for Solving the Problems]
The swash plate slide mechanism of the model helicopter according to the present invention achieves the above-mentioned object, and the means of claim 1 includes a servo frame fixed to the frame of the fuselage, a mast rotated by a driving source such as an engine, and the like. A swash plate that is tiltably and vertically movable with respect to the mast, a servo plate that is slidable in the front-rear direction with respect to the servo frame, and a lower wash of the swash plate mounted on the servo plate An aileron servo connected to the plate via a rod and an aileron link and tilting the lower wash plate left and right; and a lower wash plate mounted on the servo plate and connected to the lower wash plate of the swash plate via a rod and an elevator link. An elevator servo that tilts the shunt plate in the front-rear direction, and a pitch servo mounted on the servo plate and connected to the servo frame via a rod, and the servo plate is moved to the servo frame by the driving force of the pitch servo. The swash plate is moved up and down with respect to the mast .
[0018]
According to a second aspect of the present invention, a step is formed on both sides of the servo frame, a guide plate is fixed on the step to form a guide groove, and the servo plate is slidably attached to the guide groove. It is what.
[0019]
Further, according to a third aspect of the present invention, an engine control rod for controlling the engine speed is connected to the servo plate, and the swash plate vertical movement control and the engine speed control are performed in conjunction with each other. Is.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a swash plate slide mechanism of a model helicopter according to the present invention will be described with reference to FIGS. The same reference numerals as those of the second conventional example denote the same members, and the description thereof is omitted.
[0022]
The present invention is different from the second conventional example in that the servo plate 18 is slidable in the front-rear direction with respect to the servo frame 2, and one aileron servo 5, elevator servo 9 and pitch servo 13 are provided on the servo plate 18. And installed.
[0023]
Hereinafter, in order to describe the embodiment of the present invention in detail, a step is formed on both side portions to which the servo plate 18 of the servo frame 2 is attached, and the guide plate 2b is formed so that the guide groove 2a is formed on the step. Fix it. On the other hand, by attaching rollers 18a to the four corners of the servo plate 18 and guiding the rollers 18a into the guide grooves 2a, the servo plate 18 is slidable with respect to the frame 1.
[0024]
On the other hand, the servo plate 18 is provided with the aileron servo 5 at the center and the pitch servo 13 and the elevator servo 9 on both sides thereof. The aileron servo 5 is connected to one end of rods 6 and 6 'that alternately travel in opposite directions, and the other end is connected to the aileron links 7 and 7' and rods 8 and 8 'in the same manner as in the second conventional example. It is connected to the lower wash plate 4b via
[0025]
The elevator servo 9 is connected to one end of the rod 14 in the same manner as in the second embodiment, and the other end is connected to the lower wash plate 4b via the elevator link 15 and the rod 18. Further, the pitch servo 13 is connected to the projecting portion 1 f of the frame 1 through the rod 20.
[0026]
In the swash plate slide mechanism configured as described above, the rods 6 and 6 'are alternately moved by rotating the rotating plate of the aileron servo 5 forward and backward, so that the aileron links 7 and 7' and the rods 8 and 8 'are respectively moved. As a result, the lower wash plate 4b swings in the left-right direction, and the helicopter turns in the left-right direction.
[0027]
Further, when the rotating plate of the elevator servo 9 is rotated, the helicopter moves forward or forward because it is connected to the lower wash plate 4b via the rod 14, the elevator link 15 and the rod 18 as in the second conventional example. You will move backwards.
[0028]
In order to move the swash plate 4 up and down or hovering by moving the swash plate 4 up and down, the pitch servo 13 and the servo frame 2 are rotated by rotating the rotating plate of the pitch servo 13. Are connected via the rod 20, the servo plate 18 moves back and forth with respect to the servo frame 2.
[0029]
As a result, since the aileron servo 5 and the elevator servo 9 are attached to the same servo plate 18, the rods 6 and 6'14 move forward and backward by the same distance. Therefore, the lower wash plate 4b is kept up and down while maintaining the angle. The helicopter can move up, down and hover.
[0030]
Since the control can fly by performing the pitch servo 13 and the engine control servo at the same time as in the first conventional example, the transmitter used for the control in the first conventional example is used. Therefore, even if the helicopter of the present invention is purchased, it can be made to fly by a conventional transmitter.
[0031]
Further, in the case of a player having advanced maneuvering technology, the servo is arranged as shown in FIG. 4, the servo plate 18 is fixed to the servo frame 2, the rod 6 is the pitch servo 13, and the rod 6 'is the aileron servo. Since the structure is the same as that of the second conventional example by slightly changing the arrangement such as connecting to the rod 5 and connecting the rod 14 to the central elevator servo 9, it is possible to fly while enjoying the difficulty of maneuvering. Alternatively, since it is possible to fly using the transmitter used in the first conventional example, it is not necessary to purchase a new transmitter.
[0032]
In the above description of the operation, when the pitch servo 13 is controlled and the pitch angle of the main rotor is controlled to ascend, descend, and hover, it is necessary to simultaneously control the engine output. In the case of the present invention, the end of the rod connecting the engine control servo and the engine is connected to the end of the engine control servo on the engine control servo. By connecting to the servo plate 18 and simultaneously controlling the engine output in conjunction with the control of the pitch servo 13, it is possible to reduce the engine control servo and further reduce the cost.
[0033]
【The invention's effect】
As described above, the present invention is configured such that a servo plate mounted with an aileron servo, an elevator servo, and a pitch servo is slidable with respect to the frame, and the aileron servo and the elevator servo are simultaneously slid by sliding the slide plate with the pitch servo. Since the swash plate is moved up and down, the structure can be made simple and the operability is good and the helicopter can fly even if it is a relatively beginner.
[0034]
In addition, if an engine control rod for controlling the engine speed is connected to the servo plate and the engine speed is controlled in proportion to the longitudinal movement of the servo plate, the engine control servo Costs can be reduced because they are no longer needed, and the operability is not impaired.
[Brief description of the drawings]
FIG. 1 is a perspective view of a swash plate slide mechanism of a model helicopter according to the present invention.
FIG. 2 is an exploded perspective view showing the relationship between the frame and the servo plate in the same as above.
FIG. 3 is an exploded perspective view showing a first conventional example.
FIG. 4 is a perspective view showing a second conventional example.
[Explanation of symbols]
2 Servo frame 5 Aileron servo 9 Elevator servo 13 Pitch servo 18 Servo plate

Claims (3)

A servo frame fixed to the frame of the machine body, a mast that is rotated by a drive source such as an engine, a swash plate that is tiltably and vertically movable with respect to the mast, and slides back and forth with respect to the servo frame Mounted on the servo plate, a servo plate mounted freely, an aileron servo mounted on the servo plate and connected to the lower wash plate of the swash plate via a rod and an aileron link, and tilting the lower wash plate left and right. An elevator servo connected to the lower wash plate of the swash plate via a rod and an elevator link and tilting the lower wash plate in the front-rear direction; and the servo frame and rod mounted on the servo plate To more configuration and connected pitch servo and the swash plate is slid in the longitudinal direction of the servo plate with respect to said servo frame by the driving force of the pitch servo so as to move up and down relative to the mast A swashplate slide mechanism for a model helicopter. A step is formed on both sides of the servo frame, a guide plate is fixed on the step to form a guide groove, and the servo plate is slidably attached to the guide groove. The swash plate slide mechanism of the model helicopter according to 1.   2. An engine control rod for controlling the engine speed is connected to the servo plate, and the vertical movement control of the swash plate and the control of the engine speed are performed in conjunction with each other. Model helicopter swash plate slide mechanism.

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