side rod device

Abstract

A side stick device is useful for achieving control of the direction of an aircraft in flight and on the ground in a compact structure. The side stick device for controlling at least one of pitch and roll and yaw and ground crab of an aircraft includes a handle, a support portion that supports the handle so as to be rotatable about a first axis with respect to the support portion, and a detection output portion that detects rotation of the handle with respect to the support portion and outputs the detection result as aileron deflection control information and a front crab control information.

Description

Technical Field

[0001] This invention relates to the field of aircraft control, and more particularly to a side stick device for controlling the pitch and roll of an aircraft. Background Technology

[0002] In most mainstream commercial airliners today, a side stick is typically installed to control the ailerons and elevators, thereby controlling the aircraft's roll and pitch during flight.

[0003] In addition, most mainstream commercial airliners are equipped with rudder pedals and nose wheel steering handwheels. The rudder pedals are used to control the rudder, thereby controlling the aircraft's heading in the air, while the nose wheel steering handwheels are used to control the nose wheel, thereby controlling the aircraft's direction when traveling on the ground.

[0004] However, if multiple directional control devices are set up separately as described above, it can easily lead to an increase in the space occupied.

[0005] In response to the above situation, Patent Document 1 discloses an aircraft control device that integrates the front wheel turning function on the side stick device, thus saving installation space to a certain extent.

[0006] Patent Document 1: CN114104268A

[0007] However, the aforementioned aircraft control system still needs to include additional rudder pedals and other components to control the aircraft's heading during flight. Summary of the Invention

[0008] The present invention was made in view of the above-mentioned problems, and aims to provide a side stick device that helps to control the direction of an aircraft in flight and on the ground with a compact structure.

[0009] To achieve the above objectives, the present invention provides a side stick device for controlling at least one of the pitch and roll of an aircraft, comprising: a handle; a support portion supporting the handle so that the handle can rotate about a first axis relative to the support portion; and a detection output portion detecting the rotation of the handle relative to the support portion and outputting the detection result as rudder deflection control information and nose wheel turning control information.

[0010] According to the side stick device of the present invention, the detection output unit detects the rotation of the handle relative to the support and outputs the detection result as information for rudder deflection control and information for nose wheel turning control. Therefore, the functions of controlling the aircraft rudder and controlling the direction of the aircraft when traveling on the ground can be compactly integrated into the side stick device.

[0011] Furthermore, in the side stick device of the present invention, it is preferable that the detection output unit can form at least two of the following states: a first state, a second state, and a third state. In the first state, the detection result is output only as information for rudder deflection control. In the second state, the detection result is output only as information for front wheel turning control. In the third state, the detection result is output simultaneously as information for rudder deflection control and information for front wheel turning control.

[0012] According to the side stick device of the present invention, the detection output unit can form at least two of the following states: a first state, a second state, and a third state. In the first state, the detection result is output only as information for rudder deflection control. In the second state, the detection result is output only as information for front wheel steering control. In the third state, the detection result is output simultaneously as information for rudder deflection control and information for front wheel steering control. Therefore, it is convenient to select the output information.

[0013] Furthermore, in the side stick device of the present invention, the detection output unit preferably includes a rotation detection unit and a control unit. The rotation detection unit includes: a first sensor assembly that detects the rotation of the handle relative to the support and outputs the detection result as information for rudder deflection control; and a second sensor assembly that detects the rotation of the handle relative to the support and outputs the detection result as information for front wheel steering control. The control unit controls at least one of the operation and output of the first sensor assembly and the second sensor assembly.

[0014] According to the side stick device of the present invention, the rudder deflection control information and the front wheel steering control information are detected separately using a first sensor assembly and a second sensor assembly. Therefore, compared with the case where a single sensor assembly is used to output the rudder deflection control information and the front wheel steering control information separately, it helps to simplify, for example, the circuit switching structure. Furthermore, if one of the first sensor assembly and the second sensor assembly fails, only that sensor assembly needs to be replaced, without replacing the entire rotation detection unit, which helps to reduce maintenance costs.

[0015] Furthermore, in the side stick device of the present invention, the control unit preferably includes: a rudder control button, which constitutes an operating element and controls at least one of the operation and output of the first sensor assembly; and a front wheel steering control button, which constitutes an operating element and controls at least one of the operation and output of the second sensor assembly.

[0016] According to the side stick device of the present invention, by separating the rudder control button and the front wheel steering control button, compared with the case where the rudder control button and the front wheel steering control button are integrated, it helps to avoid confusion for the pilot when switching and reduces the burden on the pilot.

[0017] Furthermore, in the side rod device of the present invention, a locking and unlocking part is preferably included, which constitutes an operating member and can be switched between a locked state and an unlocked state. In the locked state, the locking and unlocking part locks the handle relative to the support portion, and in the unlocked state, the locking and unlocking part allows the handle to rotate relative to the support portion.

[0018] According to the side stick device of the present invention, when there is no need to manually control the aircraft rudder and the direction of the aircraft when it is traveling on the ground, the locking and unlocking part can be switched to the locked state, thereby avoiding safety problems caused by accidental operation of the handle.

[0019] Furthermore, in the side rod device of the present invention, the handle preferably has a first engaging portion, the support portion has a second engaging portion, and the locking / unlocking portion has an engaging portion. The locking / unlocking portion forms the locked state by engaging the first engaging portion and the second engaging portion, and forms the unlocked state by disengaging the engaging portion from at least one of the first engaging portion and the second engaging portion.

[0020] The side rod device according to the present invention can form a locking and unlocking part with a simple structure, which helps to reduce manufacturing costs.

[0021] Furthermore, in the side rod device of the present invention, the operating member is preferably disposed on the handle, and a protective cover is provided on the handle. The protective cover can be switched between a covered position and an open position. In the covered position, the protective cover covers the operating member, and in the open position, the protective cover exposes the operating member.

[0022] According to the side stick device of the present invention, by setting the operating element on the handle, it is convenient for the pilot to operate the operating element. On the other hand, by switching the protective cover to the covered position, safety problems caused by misoperation of the operating element can be avoided.

[0023] Furthermore, in the side rod device of the present invention, a first retaining seat and a second retaining seat are preferably included. The first retaining seat supports the support portion so that the support portion can rotate about a second axis intersecting the first axis. The second retaining seat supports the first retaining seat so that the first retaining seat can rotate about a third axis intersecting the first axis and the second axis.

[0024] According to the side stick device of the present invention, by outputting roll control information based on one of the rotation of the support about the second axis and the rotation of the first retainer about the third axis, and outputting pitch control information based on the other, the functions of controlling the aircraft ailerons and elevators can be compactly integrated on the side stick device.

[0025] Furthermore, the side lever device of the present invention preferably includes a centering device, which includes at least one of a first centering device, a second centering device, and a third centering device. The first centering device includes a first reset member that applies a force to keep the handle in a neutral position relative to the support. The second centering device includes a second reset member that applies a force to keep the support in a neutral position relative to the first retainer. The third centering device includes a third reset member that applies a force to keep the first retainer in a neutral position relative to the second retainer.

[0026] According to the side stick device of the present invention, the pilot can easily judge the degree of yaw, turn, roll, pitch, etc. based on the magnitude of the feedback force of the reset element, thereby improving the reliability of control.

[0027] Furthermore, in the side rod device of the present invention, the first centering device preferably includes: a first component, which is fixedly connected to the handle and connected to one end of the first reset member; a second component, which is fixedly connected to the support portion and connected to the other end of the first reset member; a first damping member, one end of which is connected to one of the first component and the second component; and a first abutting member, which is connected to the other end of the first damping member and is abutted against the other of the first component and the second component by force applied by the first damping member. The second centering device includes: a first component, which is fixedly connected to the support portion and connected to one end of the second reset member; a second component, which is fixedly connected to the first retaining seat and connected to the other end of the second reset member; the first... The third resetting device comprises: a first component fixedly connected to the first retaining seat and connected to one end of the third resetting member; a second component fixedly connected to the second retaining seat and connected to the other end of the third resetting member; a third damping member, one end of which is connected to one of the first component and the second component; and a third abutment member, the other end of which is connected to the third damping member and connected to the other end of the third resetting member; a third damping member, one end of which is connected to one of the first component and the second component; and a third abutment member, the third abutment member being connected to the other end of the third damping member and being abutted against the other end of the first component and the second component by the third damping member.

[0028] According to the side stick device of the present invention, by providing a damping element, it is easy to provide the pilot with a damping force corresponding to the operating range of the handle, thereby better reflecting the force conditions of the aircraft control surfaces, etc.

[0029] Furthermore, in the side rod device of the present invention, preferably in the first centering device, the first component includes a first guide portion that guides at least one of the first damping member and the first abutment member, so that the first damping member applies force to the first abutment member on a straight line orthogonal to and passing through the first axis; in the second centering device, the first component includes a second guide portion that guides at least one of the second damping member and the second abutment member, so that the second damping member applies force to the second abutment member on a straight line orthogonal to and passing through the second axis; and in the third centering device, the first component includes a third guide portion that guides at least one of the third damping member and the third abutment member, so that the third damping member applies force to the third abutment member on a straight line orthogonal to and passing through the third axis.

[0030] Furthermore, in the side rod device of the present invention, preferably in the first centering device, the second component is provided with a first cam surface, which is V-shaped or U-shaped and faces or away from the opening of the first axis, and is abutted by the first abutting member; in the second centering device, the second component is provided with a second cam surface, which is V-shaped or U-shaped and faces or away from the opening of the second axis, and is abutted by the second abutting member; in the third centering device, the second component is provided with a third cam surface, which is V-shaped or U-shaped and faces or away from the opening of the third axis, and is abutted by the third abutting member.

[0031] According to the side rod device of the present invention, a side rod feedback force and displacement curve that is more in line with the designer's intention can be obtained.

[0032] (Invention Effects)

[0033] According to the present invention, the detection output unit detects the rotation of the handle relative to the support and outputs the detection result as information for rudder deflection control and information for front wheel turning control. Therefore, the functions of controlling the aircraft rudder and controlling the direction of the aircraft when traveling on the ground can be compactly integrated into the side stick device. Attached Figure Description

[0034] Figure 1 This is a perspective view schematically illustrating a side rod device according to an embodiment of the present invention.

[0035] Figure 2 This is a partial cross-sectional perspective view schematically illustrating the side rod device according to an embodiment of the present invention.

[0036] Figure 3 This is a partial cross-sectional perspective view schematically illustrating the side rod device according to an embodiment of the present invention.

[0037] Figure 4 This is a partial cross-sectional perspective view schematically illustrating the handle in the side rod device according to an embodiment of the present invention.

[0038] Figure 5 This is a partial cross-sectional perspective view schematically illustrating the support portion in the side rod device according to an embodiment of the present invention.

[0039] Figure 6 This is a sectional perspective view schematically illustrating the support portion in the side rod device according to an embodiment of the present invention.

[0040] Figure 7 This is a perspective view schematically illustrating the locking and unlocking part in the side rod device according to an embodiment of the present invention.

[0041] Figure 8 This is a perspective view schematically illustrating the centering device in the side rod device according to an embodiment of the present invention.

[0042] Figure 9 This is an exploded perspective view schematically illustrating the centering device in the side rod device according to an embodiment of the present invention.

[0043] Figure 10 This is a perspective view schematically illustrating a modified example of the second component of the centering device in the side rod device according to an embodiment of the present invention.

[0044] Figure 11 This is a plan view schematically illustrating a modified example of the second component of the centering device in the side rod device according to an embodiment of the present invention.

[0045] (Symbol Explanation)

[0046] 1. Handle

[0047] 1-1 Protective Cover

[0048] 1-2 Steering control buttons

[0049] 1-3 Front wheel steering control button

[0050] 1-4 Shafts

[0051] 2 Support section

[0052] 3 First Holder

[0053] 4 Second Holder

[0054] 5. Second round of equipment

[0055] 5-1 First Component

[0056] 5-2 Second receiving piece

[0057] 5-3 Second Reset Component

[0058] 5-4 Second Damping Component

[0059] 5-5 Second Component

[0060] 6. Pitch sensor assembly

[0061] 7. The third device

[0062] 8 Roll sensor assembly

[0063] 9. First round of devices

[0064] 10 First Sensor Assembly

[0065] 11 Second sensor assembly

[0066] 12 Locking / Unlocking Section Detailed Implementation

[0067] Below, in conjunction with Figures 1 to 9 The side rod device according to an embodiment of the present invention will be described.

[0068] For ease of explanation, the three mutually orthogonal directions are designated as X, Y, and Z. One side of the X direction is designated as X1, and the other side as X2. One side of the Y direction is designated as Y1, and the other side as Y2. One side of the Z direction is designated as Z1, and the other side as Z2.

[0069] (Overall structure of the side rod device)

[0070] like Figures 1 to 3 As shown, the side stick device is used to control at least one of the pitch and roll of an aircraft, and includes: a handle 1; a support 2 that supports the handle 1 so that the handle 1 can rotate relative to the support 2 about a first axis (extending in the Z direction in the illustrated state); and a detection output that detects the rotation of the handle 1 relative to the support 2 and outputs the detection result as rudder deflection control information and nose wheel turning control information.

[0071] Here, the detection output unit can form a first state and a second state. In the first state, the detection result is output only as information for rudder deflection control, and in the second state, the detection result is output only as information for front wheel turning control.

[0072] In addition, the detection output unit includes a rotation detection unit and a control unit, wherein the rotation detection unit detects the rotation of the handle 1 relative to the support 2 and outputs the detection result, and the control unit controls at least one of the operation and output of the rotation detection unit.

[0073] In addition, such as Figures 1 to 3 As shown, the side stick device includes a first retaining seat 3 and a second retaining seat 4. The first retaining seat 3 supports the support portion 2, allowing the support portion 2 to rotate about a second axis intersecting the first axis (extending in the X direction in the illustrated state). The second retaining seat 4 supports the first retaining seat 3, allowing the first retaining seat 3 to rotate about a third axis intersecting the first and second axes (extending in the Y direction in the illustrated state). Furthermore, the side stick device includes: a pitch detection unit that detects the rotation of the support portion 2 relative to the first retaining seat 3 and outputs the detection result as pitch control information; and a roll detection unit that detects the rotation of the first retaining seat 3 relative to the second retaining seat 4 and outputs the detection result as roll control information. Therefore, the side stick device can control both the pitch and roll of the aircraft.

[0074] In addition, such as Figure 2 As shown, the side lever device also includes a locking / unlocking part 12. The locking / unlocking part 12 constitutes an operating element and can be switched between a locked state and an unlocked state. In the locked state, the locking / unlocking part 12 locks the handle 1 relative to the support 2. In the unlocked state, the locking / unlocking part 12 allows the handle 1 to rotate relative to the support 2.

[0075] In addition, such as Figures 1 to 3 As shown, the side lever assembly also includes a centering device. The centering device includes a first centering device 9, a second centering device 5, and a third centering device 7. The first centering device 9 is used to keep the handle 1 in a neutral position relative to the support 2 (that is, when the handle 1 is rotated a certain angle relative to the support 2 by operating the handle 1 and then released, the first centering device 9 automatically returns the handle 1 to the neutral position). The second centering device 5 is used to keep the support 2 in a neutral position relative to the first retaining seat 3 (that is, when the support 2 is rotated a certain angle relative to the first retaining seat 3 by operating the handle 1 and then released, the second centering device 5 automatically returns the support 2 to the neutral position). The third centering device 7 is used to keep the first retaining seat 3 in a neutral position relative to the second retaining seat 4 (that is, when the first retaining seat 3 is rotated a certain angle relative to the second retaining seat 4 by operating the handle 1 and then released, the third centering device 7 automatically returns the second retaining seat 4 to the neutral position).

[0076] In addition, such as Figure 1 and Figure 2 As shown, the side rod device also includes a protective cover 1-1, which can be switched between a covered position and an open position. In the covered position, the protective cover 1-1 covers the operating component, and in the open position, the protective cover 1-1 exposes the operating component.

[0077] (Handle structure)

[0078] like Figures 2 to 4As shown, the handle 1 includes: a grip portion for the pilot to hold; and a pivot 1-4 surrounded by the grip portion.

[0079] Here, as Figures 2 to 4 As shown, the gripping part includes: a cylindrical part that surrounds the Z1 direction side of the rotating shaft 1-4, with an inner surface that is circular about a first axis and an outer surface that is square; and a top that closes the opening on the Z1 direction side of the cylindrical part and is connected in the center to the end of the rotating shaft 1-4 on the Z1 direction side. The rotating shaft 1-4 can rotate about the first axis.

[0080] In addition, such as Figures 1 to 4 As shown, in the grip section, a corrugated portion is also formed on the outer surface of the cylinder, with the top overlapping the corrugated portion on the Z1 direction side. Therefore, when the pilot grips the handle 1 for operation, the friction between the hand and the handle 1 is increased, preventing the hand from slipping off the handle 1 and making the operation more stable.

[0081] In addition, such as Figures 2 to 4 As shown, the handle 1 also has a first engaging portion for engaging the locking / unlocking portion 12. Specifically, in the grip portion, the cylindrical portion has a hole extending through in a direction orthogonal to the first axis (in the illustrated example, the X direction, but not limited to this, it could also be the Y direction or other directions) as the first engaging portion.

[0082] (Structure of the support part)

[0083] like Figure 5 and Figure 6 As shown, the support part 2 is generally in the shape of a hollow rod.

[0084] Here, as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the support portion 2 includes: a large-diameter portion, which is formed into a cylindrical shape with both its inner and outer surfaces circular around a first axis; and a small-diameter portion, which is adjacent to and connected to the large-diameter portion on the Z1 direction side, and is formed into a cylindrical shape with both its inner and outer surfaces circular around the first axis, and both its outer and inner diameters are smaller than the inner diameter of the large-diameter portion, forming a stepped portion between the large-diameter portion and the small-diameter portion.

[0085] In addition, such as Figure 2 and Figure 3 As shown, the Z1-direction portion of the small-diameter part is inserted into the cylindrical portion included in the grip portion of the handle 1. The outer diameter of the Z1-direction portion of the small-diameter part is approximately the same as the inner diameter of the cylindrical portion included in the grip portion of the handle 1.

[0086] In addition, such as Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, in the small diameter portion, a flange portion protruding outwards is formed midway in the Z direction. The flange portion is, for example, abutted against the Z2 direction end of the cylindrical portion included in the grip portion of the handle 1.

[0087] In addition, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in the small diameter portion, a pivot is provided on the Z2 direction side compared to the flange portion. The pivot can rotate about the second axis and protrudes on both sides in the extension direction of the second axis, i.e., the X direction. The support portion 2 is supported on the first retaining seat 3 (specifically, the side plates of the first retaining seat 3 facing each other in the X direction) via the pivot in a manner that allows it to rotate about the second axis.

[0088] In addition, such as Figure 5 and Figure 6 As shown, the support portion 2 also has a second engaging portion for engaging with the locking / unlocking portion 12. Specifically, in the small-diameter portion, a hole extending in a direction orthogonal to the first axis is formed in the portion closer to the Z1 direction than the flange portion (in the illustrated example, it is a through hole, but it is not limited to this and may also be a non-through hole) to serve as the second engaging portion.

[0089] (Structure of the first retainer)

[0090] like Figures 1 to 3 As shown, the first retainer 3 is cylindrical (or frame-shaped) and surrounds the support 2 in the circumferential direction centered on the first axis.

[0091] Here, as Figures 1 to 3 As shown, the first retainer 3 is integrally formed in a square tube shape and has: a pair of side plates spaced apart and opposite each other in the X direction; and a pair of side plates spaced apart and opposite each other in the Y direction.

[0092] In addition, such as Figures 1 to 3 As shown, in the first retaining seat 3, a pair of opposing side plates spaced apart in the Y direction are each provided with a pivot. The pivot can rotate about a third axis and protrudes from the pair of side plates in the Y direction, which is the extension direction of the third axis. The first retaining seat 3 is supported by the second retaining seat 4 (specifically, the opposing side plates in the Y direction of the second retaining seat 4) via the pivot in a manner that allows it to rotate about the third axis.

[0093] (Structure of the second retainer)

[0094] like Figures 1 to 3 As shown, the second retainer 4 is cylindrical (or frame-shaped) and surrounds the first retainer 3 in the circumferential direction centered on the first axis.

[0095] Here, as Figures 1 to 3 As shown, the second retainer 4 is generally formed in the shape of a square tube and has: a pair of side plates spaced apart and opposite each other in the X direction; and a pair of side plates spaced apart and opposite each other in the Y direction.

[0096] Furthermore, although not shown in the figure, the side stick device is supported on the aircraft's control panel, for example, via the second retainer 4.

[0097] (Structure of the rotation detection unit, pitch detection unit, and roll detection unit)

[0098] like Figure 2 and Figure 3 As shown, the rotation detection unit includes: a first sensor assembly 10, which detects the rotation of the handle 1 relative to the support 2 and outputs the detection result (rotation angle) as information for rudder deflection control; and a second sensor assembly 11, which detects the rotation of the handle 1 relative to the support 2 and outputs the detection result (rotation angle) as information for front wheel turning control.

[0099] Here, the first sensor assembly 10 is preferably an RVDT sensor assembly. For example, the iron core is fixed to one of the handle 1 and the support 2, and the coil through which current flows and interacts with the iron core is fixed to the other of the handle 1 and the support 2. Similarly, the second sensor assembly 11 is also preferably an RVDT sensor assembly. For example, the iron core is fixed to one of the handle 1 and the support 2, and the coil through which current flows and interacts with the iron core is fixed to the other of the handle 1 and the support 2. Of course, the first sensor assembly 10 and the second sensor assembly 11 can also be other types of sensor assemblies, such as optical sensor assemblies.

[0100] In addition, such as Figures 1 to 3 As shown, the pitch detection unit includes a pitch sensor assembly 6. The pitch sensor assembly 6 is preferably an RVDT sensor assembly; for example, the iron core is fixed to one of the support 2 and the first retainer 3, and the coil through which current flows and interacts with the iron core is fixed to the other of the support 2 and the first retainer 3. Of course, the pitch sensor assembly 6 can also be other types of sensor assemblies, such as optical sensor assemblies.

[0101] In addition, such as Figures 1 to 3 As shown, the roll detection unit includes a roll sensor assembly 8. The roll sensor assembly 8 is preferably an RVDT sensor assembly; for example, the iron core is fixed to one of the first retainer 3 and the second retainer 4, and a coil through which current flows and interacts with the iron core is fixed to the other of the first retainer 3 and the second retainer 4. Of course, the roll sensor assembly 8 can also be other types of sensor assemblies, such as optical sensor assemblies.

[0102] Furthermore, although not illustrated, the detection results of the rotation detection unit, pitch detection unit, and roll detection unit are transmitted to the aircraft's control unit (e.g., flight control computer) via wired or wireless means.

[0103] (Structure of the control unit)

[0104] like Figures 2 to 4 As shown, the control unit includes: a rudder control button 1-2, which constitutes an operating element and controls at least one of the operation and output of the first sensor assembly 10; and a front wheel steering control button 1-3, which constitutes an operating element and controls at least one of the operation and output of the second sensor assembly 11.

[0105] Here, in the first state, the control unit outputs the detection result of the first sensor assembly 10, and in the second state, the control unit outputs the detection result of the second sensor assembly 11. Specifically, for example, when the rudder control button 1-2 is pressed, the system switches to the first state, connects the output line of the first sensor assembly 10, and outputs the detection result (e.g., the detected voltage) of the first sensor assembly 10 to the aircraft control unit (at this time, it is preferable to cut off the signal output of the second sensor assembly 11, for example, to cut off the output line of the second sensor assembly 11); on the other hand, when the nose wheel steering control button 1-3 is pressed, the system switches to the second state, connects the output line of the second sensor assembly 11, and outputs the detection result (e.g., the detected voltage) of the second sensor assembly 11 to the aircraft control unit (at this time, it is preferable to cut off the signal output of the first sensor assembly 10, for example, to cut off the output line of the first sensor assembly 10).

[0106] In addition, such as Figures 2 to 4 As shown, the rudder control button 1-2 and the front wheel steering control button 1-3 are respectively located on the handle 1. Specifically, the rudder control button 1-2 and the front wheel steering control button 1-3 are respectively located on the outer side of the grip portion of the handle 1 (in the example shown, it is the side on the X1 direction, but it is not limited to this; it can also be the side on the X2 direction, or other sides), and the rudder control button 1-2 is closer to the Z1 direction side than the front wheel steering control button 1-3.

[0107] (Lock / Unlock Section)

[0108] like Figure 2 and Figure 3 As shown, the locking / unlocking part 12 has an engaging part that cooperates with the first engaging part and the second engaging part.

[0109] Here, as Figure 2 , Figure 3 and Figure 7As shown, the locking / unlocking part 12 is a locking nut, and the engaging part is formed by the threaded shaft of the locking nut. The locking / unlocking part forms a locked state by engaging with the first engaged part of the handle 1 and the second engaged part of the support part 2 (in the illustrated example, it can form a screw engagement with the second engaged part, but is not limited to this), and forms an unlocked state by disengaging from at least one of the first engaged part of the handle 1 and the second engaged part of the support part 2.

[0110] In addition, such as Figure 2 and Figure 3 As shown, the locking / unlocking part 12 is provided on the handle 1, located in the Z direction between the rudder control button 1-2 and the front wheel steering control button 1-3. Furthermore, the rudder control button 1-2, the locking / unlocking part 12, and the front wheel steering control button 1-3 are arranged sequentially along the Z direction.

[0111] (Structure of the centering device)

[0112] As described above, the centering device includes a first centering device 9, a second centering device 5, and a third centering device 7.

[0113] Here, as Figure 8 and Figure 9 As shown, the second resetting device 5 includes a second resetting member 5-3, which applies a force to keep the support 2 in a neutral position relative to the first retaining seat 3. Specifically, the second rewinding device 5 includes: a first component 5-1 (which may also be called a core component in the illustrated example), which is fixedly connected to the support portion 2 and connected to one end of the second reset member 5-3; a second component 5-5 (which may also be called a housing component in the illustrated example), which is fixedly connected to the first retaining seat 3 and connected to the other end of the second reset member 5-3; a second damping member 5-4, one end of which is connected to one of the first component 5-1 and the second component 5-5 (the first component 5-1 in the illustrated example); and a second abutment member 5-2, which is connected to the other end of the second damping member 5-4 and is abutted against the other of the first component 5-1 and the second component 5-5 (the second component 5-5 in the illustrated example) by the force exerted by the second damping member 5-4. Furthermore, in the second rewinding device 5, the first component 5-1 includes a second guide portion that guides at least one of the second damping member 5-4 and the second abutment member 5-2, so that the second damping member 5-4 applies force to the second abutment member 5-2 on a straight line orthogonal to and passing through the second axis. The second component 5-5 is provided with a second cam surface, which is V-shaped and opens toward the second axis, and is abutted by the second abutment member 5-2. More specifically, the first component 5-1 includes: a cylindrical shaft centered on the second axis (in... Figure 9(Extending along the left and right direction); from the cylinder shaft toward the side orthogonal to the second axis (in) Figure 9 The cylindrical portion (which may also be a groove, etc.) extends from the lower side and forms the second guide portion; and the other side (in the direction orthogonal to the second axis) extends from the cylindrical shaft towards the other side. Figure 9 The protrusion (located on the upper side) protrudes and connects to one end of the second reset member 5-3. The second member 5-5 includes: a rotating shaft centered on the second axis (in...). Figure 9 Extending in the left-right direction and capable of being inserted into the inner side of the cylindrical shaft of the first component 5-1; a cylindrical portion coaxially disposed on the outer periphery of the rotating shaft; one side of the cylindrical portion in the extension direction of the second axis (in Figure 9 The end plate (left side) has a closed opening and is centrally connected to the pivot; a pair of flat plates are disposed inside the cylindrical part, the pair of flat plates being arranged in a straight line orthogonal to and passing through the second axis (in... Figure 9 The first part 5-1 is symmetrical about the second axis and opens towards the second axis (or forms a V-groove), with the surface facing the second axis constituting the second cam surface; a pair of limiting plates protruding from the middle of the pair of flat plates towards the second axis to limit the range of motion of the second abutment 5-2; and a protrusion disposed on the inner side of the cylindrical part opposite to the connection of the pair of flat plates across the second axis, for connection of the other end of the second reset member 5-3. The second reset member 5-3 is a tension spring. The second damping member 5-4 is a compression spring. The second abutment 5-2 has a roller that abuts against the second cam surface. The first part 5-1 can rotate relative to the second part 5-5, but when the first part 5-1 is in a neutral position relative to the second part 5-5, the second reset member 5-3 and the second damping member 5-4 are simultaneously on a straight line orthogonal to and passing through the second axis.

[0114] Similarly, as Figure 2 and Figure 3As shown, the first centering device 9 includes a first reset member that applies a force to keep the handle 1 in a neutral position relative to the support 2. Specifically, the first centering device 9 includes: a first component fixedly connected to the handle 1 (in the illustrated example, the portion on the Z2 direction side of the rotating shaft 1-4) and connected to one end of the first reset member; a second component fixedly connected to the support 2 (e.g., the inner surface of the large-diameter portion of the support 2) and connected to the other end of the first reset member; a first damping member, one end of which is connected to one of the first and second components; and a first abutment member connected to the other end of the first damping member and abutted against the other of the first and second components by force applied by the first damping member. Furthermore, in the first centering device, the first component includes a first guide portion that guides at least one of a first damping member and a first abutting member, so that the first damping member applies force to the first abutting member on a straight line orthogonal to and passing through the first axis. The second component is provided with a first cam surface, which is V-shaped and opens toward the first axis, and is abutted by the first abutting member. Since the detailed structure of the first centering device 9 is the same as that of the second centering device 5, it will not be elaborated further here.

[0115] Similarly, as Figure 2 and Figure 3 As shown, the third centering device 7 includes a third reset member that applies a force to hold the second retaining seat 4 in a neutral position relative to the first retaining seat 3. Specifically, the third centering device 7 includes: a first component fixedly connected to the first retaining seat 3 (in the illustrated example, a side plate on the X1 direction side) and connected to one end of the third reset member; a second component fixedly connected to the second retaining seat 4 (in the illustrated example, a side plate on the X1 direction side) and connected to the other end of the third reset member; a third damping member, one end of which is connected to one of the first component and the second component; and a third abutment member connected to the other end of the third damping member and abutting against the other of the first component and the second component under the force applied by the third damping member. Furthermore, in the third centering device 7, the first component includes a third guide portion that guides at least one of the third damping member and the third abutment member, so that the third damping member applies force to the third abutment member on a straight line orthogonal to and passing through the third axis. The second component is provided with a third cam surface, which is V-shaped and opens toward the third axis, and is abutted by the third abutment member. Since the detailed structure of the third centering device 7 is the same as that of the second centering device 5, it will not be elaborated further here.

[0116] (Main effects of this implementation method)

[0117] According to the side stick device of this embodiment, the detection output unit detects the rotation of the handle 1 relative to the support 2, and outputs the detection result as information for rudder deflection control and information for nose wheel turning control. Therefore, the functions of controlling the aircraft rudder and controlling the direction of the aircraft when it is traveling on the ground can be compactly integrated into the side stick device.

[0118] Furthermore, according to the side stick device of this embodiment, the first centering device 9 includes a damping mechanism that applies damping force when the handle 1 rotates relative to the support 2, the second centering device 5 includes a damping mechanism that applies damping force when the support 2 rotates relative to the first retaining seat 3, and the third centering device 7 includes a damping mechanism that applies damping force when the first retaining seat 3 rotates relative to the second retaining seat 4. Therefore, the pilot can easily and realistically feel the position and load of the control surfaces during aircraft flight.

[0119] Furthermore, according to the side rod device of this embodiment, in the first centering device 9, as a damping mechanism, a first damping member is provided to apply force to the first abutment member and a first cam surface that is V-shaped and opens toward the first axis and is abutted by the first abutment member. In the second centering device 5, as a damping mechanism, a second damping member is provided to apply force to the second abutment member and a second cam surface that is V-shaped and opens toward the second axis and is abutted by the second abutment member. In the third centering device 7, as a damping mechanism, a third damping member is provided to apply force to the third abutment member and a third cam surface that is V-shaped and opens toward the third axis and is abutted by the third abutment member. Therefore, a side rod feedback force and displacement curve that is more in line with the designer's intention can be obtained.

[0120] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above embodiments.

[0121] For example, in the above embodiment, the second cam surface of the second return device 5 is formed by a pair of flat plates, but it is not limited to this, such as... Figure 10 and Figure 11 As shown, it can also be formed by a pair of curved plates. Similarly, the first cam surface of the first centering device 9 and the third cam surface of the third centering device 7 can also be formed by a pair of curved plates.

[0122] Furthermore, in the above embodiment, the first cam surface of the first centering device 9 is V-shaped, opening towards the first axis, but it is not limited to this. For example, by forming the first cam surface on the first component, the first cam surface of the first centering device 9 can also be formed into a V-shape opening away from the first axis. The second cam surface of the second centering device 5 and the third cam surface of the third centering device 7 can also be formed in the same way.

[0123] Furthermore, in the above embodiments, the first cam surface of the first centering device 9, the second cam surface of the second centering device 5, and the third cam surface of the third centering device 7 are respectively formed in a V-shape, but are not limited to this, and can also be formed in a U-shape, or other shapes as needed.

[0124] Furthermore, in the above embodiment, the first retaining seat 3 supports the support portion 2 so that the support portion 2 can rotate about the second axis, and the second retaining seat 4 supports the first retaining seat 3 so that the first retaining seat 3 can rotate about the third axis. However, it is not limited to this. It can also be configured such that the first retaining seat 3 supports the support portion 2 so that the support portion 2 can rotate about the third axis, and the second retaining seat 4 supports the first retaining seat 3 so that the first retaining seat 3 can rotate about the second axis.

[0125] Furthermore, in the above embodiment, the detection output unit can form a first state and a second state. In the first state, the detection result is output only as information for rudder deflection control, and in the second state, the detection result is output only as information for front wheel turning control. However, it is not limited to this. It can also be configured to form a third state, in which the detection result is output simultaneously as information for rudder deflection control and information for front wheel turning control (for example, by simultaneously pressing the rudder control button 1-2 and the front wheel turning control button 1-3, thereby simultaneously outputting the information for rudder deflection control and information for front wheel turning control). Alternatively, the detection output unit can be configured to form any two of the first, second, and third states.

[0126] In addition, in the above embodiments, it is also possible that in the first state, the control unit activates the first sensor assembly 10 and deactivates the second sensor assembly 11 (e.g., stops supplying power to the second sensor assembly 11), and in the second state, the control unit deactivates the first sensor assembly 10 (e.g., stops supplying power to the first sensor assembly 10) and activates the second sensor assembly 11.

[0127] Furthermore, in the above embodiment, the rotation detection unit includes two sensor components, but it is not limited to this. It may also include only one sensor component, and the detection result may be output as information for rudder deflection control or as information for front wheel turning control, depending on the control of the control unit.

[0128] Furthermore, in the above embodiments, the rudder control button 1-2 and the front wheel steering control button 1-3 are both located on the handle 1, but they are not limited to this and may also be located on other components such as the support part 2.

[0129] Furthermore, in the above embodiments, it is preferable that the rudder control button 1-2 and the front wheel steering control button 1-3 are equipped with indicator lights to indicate whether the rudder control button 1-2 and the front wheel steering control button 1-3 are pressed.

[0130] Furthermore, in the above embodiment, the control unit includes a separate rudder control button 1-2 and a front wheel steering control button 1-3, but it is not limited to this. A single control component such as a lever can also be used to achieve the switching action (for example, switching to the first state when the lever is turned to one position and switching to the second state when the lever is turned to another position).

[0131] Furthermore, the side stick device of the present invention can also be installed simultaneously with the rudder pedals and the nose wheel steering handwheel. Thus, when the rudder pedals of both the pilot and co-pilot become jammed or malfunction in the air, the rudder can be controlled using the side stick device. On the other hand, when the nose wheel steering handwheel becomes jammed or malfunctions, the nose wheel can be controlled using the side stick device. Therefore, the reliability of aircraft handling and the safety margin can be improved.

[0132] It should be understood that within the scope of this invention, the various parts of the embodiments can be freely combined, or the various parts of the embodiments can be appropriately modified or omitted.

Claims

1. A side stick device for controlling at least one of the pitch and roll of an aircraft, characterized in that, include: handle; A support portion that supports the handle so that the handle can rotate about a first axis relative to the support portion; as well as The detection output unit detects the rotation of the handle relative to the support and outputs the detection results as information for rudder deflection control and front wheel steering control. Including a centering device, The centering device includes a first centering device. The first resetting device includes: a first resetting member that applies a force to hold the handle in a neutral position relative to the support; a first component fixedly connected to the handle and connected to one end of the first resetting member; a second component fixedly connected to the support and connected to the other end of the first resetting member; a first damping member, one end of which is connected to one of the first component and the second component; and a first abutting member connected to the other end of the first damping member and abutting against the other of the first component and the second component due to force applied by the first damping member. In the first return device, the first component includes a first guide portion that guides at least one of the first damping member and the first abutment member, so that the first damping member applies force to the first abutment member on a straight line orthogonal to and passing through the first axis. The second component is provided with a first cam surface that is V-shaped or U-shaped and opens toward or away from the first axis, and is abutted by the first abutment member.

2. The side rod device as described in claim 1, characterized in that, The detection output unit can form at least two of the following states: a first state, a second state, and a third state. In the first state, the detection results are output only as information for rudder deflection control. In the second state, the detection results are output only as information for front wheel steering control. In the third state, the detection results are simultaneously output as information for rudder deflection control and information for front wheel steering control.

3. The side rod device as described in claim 2, characterized in that, The detection output unit includes a rotation detection unit and a control unit. The rotation detection unit includes: A first sensor assembly detects the rotation of the handle relative to the support and outputs the detection result as information for rudder deflection control; and The second sensor assembly detects the rotation of the handle relative to the support and outputs the detection result as information for front wheel steering control. The control unit controls at least one of the operation and output of the first sensor assembly and the second sensor assembly.

4. The side rod device as described in claim 3, characterized in that, The control unit includes: A rudder control button, which constitutes an operating element and controls at least one of the operation and output of the first sensor assembly; and A front wheel steering control button, which constitutes an operating element and controls at least one of the operation and output of the second sensor assembly.

5. The side rod device as described in claim 1, characterized in that, Including locking and unlocking mechanisms, The locking and unlocking mechanism constitutes an operating element and can be switched between a locked state and an unlocked state. In the locked state, the locking / unlocking part locks the handle relative to the support part. In the unlocked state, the locking / unlocking part allows the handle to rotate relative to the support part.

6. The side rod device as described in claim 5, characterized in that, The handle has a first engaging portion. The support portion has a second engaging portion. The locking and unlocking part has a locking part. The locking / unlocking part forms the locked state by engaging with the first engaged part and the second engaged part, and forms the unlocked state by disengaging from at least one of the first engaged part and the second engaged part.

7. The side rod device as described in claim 4 or 5, characterized in that, The operating element is disposed on the handle. A protective cover is provided on the handle. The protective cover can be switched between a covered position and an open position. At the stated coverage position, the protective cover covers the operating element. In the open position, the protective cover exposes the operating element.

8. The side rod device as claimed in claim 1, characterized in that, Including the first and second retainers, The first retaining seat supports the support portion so that the support portion can rotate about a second axis intersecting the first axis. The second retainer supports the first retainer so that the first retainer can rotate about a third axis that intersects the first axis and the second axis.

9. The side rod device as described in claim 8, characterized in that, The centering device includes at least one of a second centering device and a third centering device. The second resetting device includes a second resetting member that applies a force to hold the support portion in a neutral position relative to the first retaining seat. The third repositioning device includes a third resetting member that applies a force to keep the first retainer in a neutral position relative to the second retainer.

10. The side rod device as claimed in claim 9, characterized in that, The second resetting device includes: a first component fixedly connected to the support portion and connected to one end of the second resetting member; a second component fixedly connected to the first retaining seat and connected to the other end of the second resetting member; a second damping member, one end of which is connected to one of the first component and the second component; and a second abutting member connected to the other end of the second damping member and abutting against the other of the first component and the second component by force applied by the second damping member. The third resetting device includes: a first component, which is fixedly connected to the first retaining seat and connected to one end of the third resetting member; a second component, which is fixedly connected to the second retaining seat and connected to the other end of the third resetting member; a third damping member, one end of which is connected to one of the first component and the second component; and a third abutting member, which is connected to the other end of the third damping member and is abutted against the other of the first component and the second component by force applied by the third damping member.

11. The side rod device as claimed in claim 10, characterized in that, In the second reciprocating device, the first component includes a second guide portion that guides at least one of the second damping member and the second abutment member, so that the second damping member applies force to the second abutment member on a straight line orthogonal to and passing through the second axis. The second component is provided with a second cam surface that is V-shaped or U-shaped, opening towards or away from the second axis, and is for the second abutment member to abut against. In the third return device, the first component includes a third guide portion that guides at least one of the third damping member and the third abutment member, so that the third damping member applies force to the third abutment member on a straight line orthogonal to and passing through the third axis. The second component is provided with a third cam surface that is V-shaped or U-shaped and opens toward or away from the third axis, and is abutted by the third abutment member.

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