Side rod device

Abstract

The invention relates to a side lever device, which is favorable for controlling the direction of an aircraft when the aircraft flies and travels on the ground with a compact structure. The side lever device is used for controlling at least one of pitching, rolling, yawing and ground front wheel turning of an aircraft, and comprises a handle; a supporting part which supports the handle so that the handle can rotate around a first axis relative to the supporting part; and a detection output unit that detects rotation of the handle with respect to the support unit and outputs the detection results as information for rudder deflection control and information for front wheel turning control.

Description

Technical Field

[0001] The invention relates to the field of aircraft control, and in particular to a side rod device for controlling the pitch and roll of an aircraft. Background Art

[0002] In current mainstream civil airliners, side stick devices are usually installed, which are used to control the ailerons and elevators of the aircraft, thereby controlling the roll and pitch of the aircraft when flying in the air.

[0003] In addition, current mainstream civil airliners are usually equipped with rudder pedals and front wheel steering hand wheels. The rudder pedals are used to control the aircraft's rudder, thereby controlling the aircraft's heading when flying in the air, and the front wheel steering hand wheel is used to control the turning of the aircraft's front wheels, thereby controlling the direction of the aircraft when driving on the ground.

[0004] However, when a plurality of direction control devices are separately provided as described above, the occupied space tends to increase.

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

[0006] Patent document 1: CN114104268A

[0007] However, in the above-mentioned aircraft control device, rudder pedals and the like still need to be provided in addition so as to control the heading of the aircraft when flying in the air. Summary of the invention

[0008] The present invention is accomplished in view of the above problems, and aims to provide a side rod device that helps to control the direction of an aircraft when flying and driving on the ground with a compact structure.

[0009] In order to achieve the above-mentioned purpose, 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, which supports the handle so that the handle can rotate around a first axis relative to the support portion; and a detection output portion, which detects the rotation of the handle relative to the support portion and outputs the detection result as information for rudder deflection control and front wheel turning control.

[0010] According to the side stick device of the present invention, the detection output portion detects the rotation of the handle relative to the support portion, and outputs the detection result as information for rudder deflection control and front wheel turning control. Therefore, the function of controlling the rudder of the aircraft and the function of 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 rod device of the present invention, it is preferred that the detection output unit can form at least two states among a first state, a second state and a third state, in which, 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, and 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 rod device of the present invention, the detection output unit can form at least two states among 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 as both information for rudder deflection control and information for front wheel turning control. Therefore, the output information can be easily selected.

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

[0014] According to the side rod device of the present invention, the first sensor component and the second sensor component are used to separately detect the rudder deflection control information and the front wheel turning control information. Therefore, compared with the case of using one sensor component to separately output the rudder deflection control information and the front wheel turning control information, it helps to simplify, for example, the line switching structure, and when one of the first sensor component and the second sensor component fails, it is only necessary to replace the sensor component without replacing the entire rotation detection unit, which helps to reduce maintenance costs.

[0015] In addition, in the side stick device of the present invention, the control unit preferably includes: a rudder control button, which constitutes an operating member and controls at least one of the action and output of the first sensor component; and a front wheel turning control button, which constitutes an operating member and controls at least one of the action and output of the second sensor component.

[0016] According to the side stick device of the present invention, by separately arranging the rudder control button and the front wheel turning control button, it helps to avoid confusion of the pilot when switching and reduce the burden on the pilot, compared with the case where the rudder control button and the front wheel turning control button are arranged as one.

[0017] In addition, in the side rod device of the present invention, it is preferably included a locking and unlocking part, 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 part, and in the unlocked state, the locking and unlocking part enables the handle to rotate relative to the support part.

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

[0019] In addition, in the side rod device of the present invention, it is preferred that the handle has a first engaged portion, the supporting portion has a second engaged portion, and the locking and unlocking portion has an engaging portion, and the locking and unlocking portion is formed in the locked state by the engaging portion being engaged with the first engaged portion and the second engaged portion, and is formed in the unlocked state by the engaging portion being withdrawn from at least one of the first engaged portion and the second engaged portion.

[0020] According to the side lever device of the present invention, the locking and unlocking portion can be formed with a simple structure, which helps to reduce the manufacturing cost.

[0021] In addition, in the side rod device of the present invention, the operating member is preferably arranged on the handle, and a protective cover is provided on the handle, and the protective cover can be switched between a covering position and an open position. In the covering 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 arranging the operating member on the handle, it is convenient for the pilot to operate the operating member. On the other hand, by switching the protective cover to the covering position, safety problems caused by misoperation of the operating member can be avoided.

[0023] In addition, in the side rod device of the present invention, it is preferred to include a first retaining seat and a second retaining seat, wherein the first retaining seat supports the supporting portion so that the supporting portion can rotate around a second axis intersecting the first axis, and the second retaining seat supports the first retaining seat so that the first retaining seat can rotate around 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 part around the second axis and the rotation of the first retaining seat around the third axis, and outputting pitch control information based on the other, the function of controlling the aileron and elevator of the aircraft can be compactly integrated on the side stick device.

[0025] In addition, in the side rod device of the present invention, it is preferred to include 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 return member, which applies a force to keep the handle in a neutral position relative to the support part, the second centering device includes a second return member, which applies a force to keep the support part in a neutral position relative to the first retaining seat, and the third centering device includes a third return member, which applies a force to keep the first retaining seat in a neutral position relative to the second retaining seat.

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

[0027] In addition, in the side rod device of the present invention, preferably, the first centering device includes: a first component, which is fixedly connected to the handle and connected to one end of the first return member; a second component, which is fixedly connected to the support portion and connected to the other end of the first return 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 forced by the first damping member to abut against the other of the first component and the second component, and the second centering device includes: a first component, which is fixedly connected to the support portion and connected to one end of the second return member; a second component, which is fixedly connected to the first retaining seat and connected to the other end of the second return member; and 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, which is connected to the other end of the second damping member and is forced by the second damping member to abut against the other of the first component and the second component. The third return device includes: a first component, which is fixedly connected to the first retaining seat and connected to one end of the third return member; a second component, which is fixedly connected to the second retaining seat and connected to the other end of the third return 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 forced by the third damping member to abut against the other of the first component and the second component.

[0028] According to the side rod device of the present invention, by providing a damping member, it is easy to provide the pilot with a damping force corresponding to the operating amplitude of the handle, thereby better reflecting the force conditions of the aircraft control surface and the like.

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

[0030] In addition, in the side rod device of the present invention, it is preferred that in the first centering device, the second component is provided with a first cam surface, which is V-shaped or U-shaped and opens toward or away from the first axis, and is abutted by the first abutment member; in the second centering device, the second component is provided with a second cam surface, which is V-shaped or U-shaped and opens toward or away from the second axis, and is abutted by the second abutment member; in the third centering device, the second component is provided with a third cam surface, which is V-shaped or U-shaped and opens toward or away from the third axis, and is abutted by the third abutment 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] (Effects of the Invention)

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

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

[0035] Figure 2 It is a partially cutaway perspective view schematically showing a side rod device according to an embodiment of the present invention.

[0036] Figure 3 It is another partially cutaway perspective view schematically showing the side rod device according to the embodiment of the present invention.

[0037] Figure 4 It is a partially cutaway perspective view schematically showing a handle in a side lever device according to an embodiment of the present invention.

[0038] Figure 5 It is a partially cutaway perspective view schematically showing a support portion in the side rod device according to the embodiment of the present invention.

[0039] Figure 6 It is a cross-sectional perspective view schematically showing a support portion in the side rod device according to the embodiment of the present invention.

[0040] Figure 7 It is a perspective view schematically showing a locking and unlocking portion in a side lever device according to an embodiment of the present invention.

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

[0042] Fig. 9 It is an exploded perspective view schematically showing a centering device in a side rod device according to an embodiment of the present invention.

[0043] Fig.10 It is a perspective view schematically showing a modified example of the second member of the centering device in the side lever device according to the embodiment of the present invention.

[0044] Fig.11 It is a plan view schematically showing a modified example of the second member of the centering device in the side lever device according to the embodiment of the present invention.

[0045] (Explanation of symbols)

[0046] 1 Handle

[0047] 1-1 Protective cover

[0048] 1-2 Rudder control knob

[0049] 1-3 Front wheel steering control knob

[0050] 1-4 Axis

[0051] 2 Supporting part

[0052] 3 First retaining seat

[0053] 4 Second retaining seat

[0054] 5 Second round of device

[0055] 5-1 The first component

[0056] 5-2 Second abutment member

[0057] 5-3 Second reset element

[0058] 5-4 Second damping element

[0059] 5-5 Second Part

[0060] 6 Pitch sensor assembly

[0061] 7 The third device

[0062] 8 Roll sensor assembly

[0063] 9 The first device

[0064] 10. First sensor assembly

[0065] 11. Second sensor assembly

[0066] 12 Locking and unlocking section DETAILED DESCRIPTION

[0067] Next, combine Figures 1 to 9 A side rod device according to an embodiment of the present invention will be described.

[0068] Here, for the sake of convenience, three mutually orthogonal directions are set as X, Y and Z directions, and one side of the X direction is set as X1, the other side of the X direction is set as X2, one side of the Y direction is set as Y1, the other side of the Y direction is set as Y2, one side of the Z direction is set as Z1, and the other side of the Z direction is set 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 the aircraft, and includes: a handle 1; a support portion 2, which supports the handle 1 so that the handle 1 can rotate relative to the support portion 2 around a first axis (extending along the Z direction in the state shown in the figure); and a detection output portion, which detects the rotation of the handle 1 relative to the support portion 2 and outputs the detection result as information for rudder deflection control and front wheel turning control.

[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 steering 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 unit 2 and outputs the detection result, and the control unit controls at least one of the action and output of the rotation detection unit.

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

[0074] In addition, if Figure 2 As shown, the side lever device further includes a locking and unlocking portion 12. The locking and unlocking portion 12 constitutes an operating member and can be switched between a locked state and an unlocked state. In the locked state, the locking and unlocking portion 12 locks the handle 1 relative to the support portion 2. In the unlocked state, the locking and unlocking portion 12 enables the handle 1 to rotate relative to the support portion 2.

[0075] In addition, if Figures 1 to 3 As shown, the side rod device also includes a return-to-center device. The return-to-center device includes a first return-to-center device 9, a second return-to-center device 5, and a third return-to-center device 7. The first return-to-center device 9 is used to keep the handle 1 in a neutral position relative to the support portion 2 (that is, when the handle 1 is operated to rotate a certain angle relative to the support portion 2 and then released, the first return-to-center device 9 automatically returns the handle 1 to the neutral position). The second return-to-center device 5 is used to keep the support portion 2 in a neutral position relative to the first retaining seat 3 (that is, when the handle 1 is operated to rotate a certain angle relative to the first retaining seat 3 and then released, the second return-to-center device 5 automatically returns the support portion 2 to the neutral position). The third return-to-center 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 handle 1 is operated to rotate the first retaining seat 3 relative to the second retaining seat 4 and then released, the third return-to-center device 7 returns the second retaining seat 4 to the neutral position).

[0076] In addition, if Figure 1 and Figure 2 As shown, the side rod device further comprises a protective cover 1-1, which can be switched into a covering position and an open position. In the covering position, the protective cover 1-1 covers the operating member, and in the open position, the protective cover 1-1 exposes the operating member.

[0077] (Handle structure)

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

[0079] Here, if Figures 2 to 4 As shown, the gripping portion includes: a barrel portion, which surrounds the Z1 direction side of the rotating shaft 1-4, the inner surface of which is circular with the first axis as the center, and the outer surface of which is square; and a top portion, which closes the opening of the Z1 direction side of the barrel portion and is centrally connected to the end of the Z1 direction side of the rotating shaft 1-4. The rotating shaft 1-4 can rotate with the first axis as the center.

[0080] In addition, if Figures 1 to 4 As shown, in the grip portion, the outer surface of the cylinder portion is also formed with a corrugated portion, and the top portion overlaps with the corrugated portion on the Z1 direction side. Thus, when the pilot holds the handle 1 to operate, the friction between the hand and the handle 1 can be increased, preventing the hand from being disengaged from the handle 1, making the operation more stable.

[0081] In addition, if Figures 2 to 4 As shown, the handle 1 also has a first engaged portion for engaging the locking and unlocking portion 12. Specifically, in the grip portion, the barrel is formed with a hole that penetrates along a direction orthogonal to the first axis (in the example shown, the X direction, but not limited thereto, and may also be the Y direction or other directions) to serve as the first engaged portion.

[0082] (Structure of the support portion)

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

[0084] Here, if Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the supporting portion 2 includes: a large diameter portion, which is formed into a cylindrical shape with an inner surface and an outer surface both being circular with a first axis as the center; 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 an inner surface and an outer surface both being circular with the first axis as the center, and the outer diameter and the inner diameter are both smaller than the inner diameter of the large diameter portion, and a step portion is formed between the large diameter portion and the small diameter portion.

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

[0086] In addition, if Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, a flange portion protruding toward the outer circumference is formed in the small diameter portion midway in the Z direction. The flange portion abuts against, for example, an end portion on the Z2 direction side of a cylindrical portion included in the grip portion of the handle 1 .

[0087] In addition, if Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in the small diameter portion, a rotating shaft is provided at a portion closer to the Z2 direction than the flange portion. The rotating shaft can rotate around the second axis and protrude from the small diameter portion to 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 described below that are opposite in the X direction) via the rotating shaft in a manner that can rotate around the second axis.

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

[0089] (Structure of the first retaining seat)

[0090] like Figures 1 to 3 As shown, the first retaining seat 3 is cylindrical in shape (may also be referred to as frame-shaped) as a whole, and surrounds the support portion 2 in the circumferential direction centered on the first axis.

[0091] Here, if Figures 1 to 3 As shown, the first holding seat 3 is formed in a square tube shape as a whole, and has: a pair of side plates facing each other with a gap in the X direction; and a pair of side plates facing each other with a gap in the Y direction.

[0092] In addition, if Figures 1 to 3 As shown, in the first retaining seat 3, a pair of side plates spaced apart and facing each other in the Y direction are respectively provided with a rotating shaft. The rotating shaft can rotate around the third axis and protrude from the pair of side plates toward both sides in the extension direction of the third axis, i.e., in the Y direction. The first retaining seat 3 is supported on the second retaining seat 4 (specifically, the side plates of the second retaining seat 4 facing each other in the Y direction described below) via the rotating shaft in a manner that allows rotation around the third axis.

[0093] (Structure of the Second Holding Seat)

[0094] like Figures 1 to 3 As shown, the second retaining seat 4 is cylindrical in shape (may also be referred to as frame-shaped) as a whole, and surrounds the first retaining seat 3 in the circumferential direction centered on the first axis.

[0095] Here, if Figures 1 to 3 As shown, the second holding seat 4 is formed in a square tube shape as a whole, and has: a pair of side plates facing each other with a gap in the X direction; and a pair of side plates facing each other with a gap in the Y direction.

[0096] Although not shown in the drawings, the side rod device is supported by, for example, a control console of an aircraft via the second holding seat 4 .

[0097] (Structure of 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 component 10, which detects the rotation of the handle 1 relative to the support part 2, and outputs the detection result (rotation angle) as information for rudder deflection control; and a second sensor component 11, which detects the rotation of the handle 1 relative to the support part 2, and outputs the detection result (rotation angle) as information for front wheel turning control.

[0099] Here, the first sensor assembly 10 preferably adopts an RVDT sensor assembly, for example, the iron core is fixed to one of the handle 1 and the support part 2, and the coil for current to flow through and interact with the iron core is fixed to the other of the handle 1 and the support part 2. Similarly, the second sensor assembly 11 also preferably adopts an RVDT sensor assembly, for example, the iron core is fixed to one of the handle 1 and the support part 2, and the coil for current to flow through and interact with the iron core is fixed to the other of the handle 1 and the support part 2. Of course, the first sensor assembly 10 and the second sensor assembly 11 may also adopt other forms of sensor assemblies such as optical sensor assemblies.

[0100] In addition, if Figures 1 to 3 As shown, the pitch detection unit includes a pitch sensor assembly 6. The pitch sensor assembly 6 preferably adopts an RVDT sensor assembly, for example, an iron core is fixed to one of the support portion 2 and the first retaining seat 3, and a coil for current to flow through and interact with the iron core is fixed to the other of the support portion 2 and the first retaining seat 3. Of course, the pitch sensor assembly 6 can also adopt other forms of sensor assemblies such as an optical sensor assembly.

[0101] In addition, if Figures 1 to 3 As shown, the roll detection unit includes a roll sensor assembly 8. The roll sensor assembly 8 preferably adopts an RVDT sensor assembly, for example, an iron core is fixed to one of the first retaining seat 3 and the second retaining seat 4, and a coil for current to flow through and interact with the iron core is fixed to the other of the first retaining seat 3 and the second retaining seat 4. Of course, the roll sensor assembly 8 can also adopt other forms of sensor assemblies such as optical sensor assemblies.

[0102] In addition, although not shown in the figure, the detection results of the rotation detection unit, the pitch detection unit, and the roll detection unit are sent to the control unit of the aircraft (such as a flight control computer) by wire or wireless means, for example.

[0103] (Structure of control unit)

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

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

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

[0107] (Lock and unlock part)

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

[0109] Here, if Figure 2 , Figure 3 and Figure 7As shown, the locking and unlocking part 12 is a locking nut, and the engaging part is composed of a threaded shaft of the locking nut. The locking and unlocking part is locked into the first engaged part of the handle 1 and the second engaged part of the support part 2 by the engaging part to form a locked state (in the example shown in the figure, it can form a spiral fit with the second engaged part, but it is not limited to this), and is withdrawn from at least one of the first engaged part of the handle 1 and the second engaged part of the support part 2 to form an unlocked state.

[0110] In addition, if Figure 2 and Figure 3 As shown, the locking and unlocking part 12 is arranged on the handle 1, and is located between the rudder control button 1-2 and the front wheel turning control button 1-3 in the Z direction. In addition, the rudder control button 1-2, the locking and unlocking part 12 and the front wheel turning control button 1-3 are arranged in sequence along the Z direction.

[0111] (Structure of the centering device)

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

[0113] Here, if Figure 8 and Fig. 9 As shown, the second centering device 5 includes a second restoring member 5 - 3 , which applies a force to keep the support portion 2 at a neutral position relative to the first holding seat 3 . Specifically, the second return device 5 includes: a first component 5-1 (also referred to as a core component in the example shown in the figure), which is fixedly connected to the support portion 2 and connected to one end of the second return member 5-3; a second component 5-5 (also referred to as a shell component in the example shown in the figure), which is fixedly connected to the first retaining seat 3 and connected to the other end of the second return 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 example shown in the figure); and a second abutment member 5-2, which is connected to the other end of the second damping member 5-4 and is forced by the second damping member 5-4 to abut against the other of the first component 5-1 and the second component 5-5 (the second component 5-5 in the example shown in the figure). Furthermore, in the second centering device 5, the first component 5-1 includes a second guide portion, which guides at least one of the second damping member 5-4 and the second abutting member 5-2 so that the second damping member 5-4 applies force to the second abutting member 5-2 on a straight line that is orthogonal to the second axis and passes through the second axis, and the second component 5-5 is provided with a second cam surface, which is in a V-shape opening toward the second axis and is abutted by the second abutting member 5-2. More specifically, the first component 5-1 includes: a cylindrical shaft centered on the second axis (at Fig. 9from the cylinder axis toward one side in a direction orthogonal to the second axis (in Fig. 9 The lower side in the middle) extends from the cylinder axis and constitutes a cylinder portion (which may also be a groove portion, etc.) and constitutes a second guide portion; and the other side (in the direction perpendicular to the second axis) extending from the cylinder axis to the second axis. Fig. 9 The second component 5-5 includes: a rotating shaft (at the center of the second axis) protruding from the second axis and connected to one end of the second reset member 5-3. Fig. 9 The cylindrical portion is coaxially arranged on the outer peripheral side of the rotating shaft with the rotating shaft; one side of the extending direction of the second axis of the cylindrical portion (in Fig. 9 The end plate is a pair of flat plates arranged on the inner side of the cylindrical portion, the pair of flat plates are arranged in a straight line (in the middle) that is orthogonal to the second axis and passes through the second axis. Fig. 9 The second member 5-3 is a cylindrical member that is symmetrical with respect to the second axis (extending in the vertical direction) and is V-shaped (it can also be said that a V-shaped groove is formed) and is open toward the second axis, and the surface facing the second axis constitutes the second cam surface; a pair of limit plates, which protrude from the middle of the pair of flat plates toward the second axis to limit the range of motion of the second abutment member 5-2; and a convex portion that is arranged on the inner side of the cylindrical portion in a manner opposite to the connection between the pair of flat plates across the second axis and to which the other end of the second reset member 5-3 is connected. The second reset member 5-3 is a tension spring. The second damping member 5-4 is a compression spring. The second abutment member 5-2 has a roller that abuts against the second cam surface. The first component 5-1 can rotate relative to the second component 5-5, but when the first component 5-1 is in a neutral position relative to the second component 5-5, the second reset member 5-3 and the second damping member 5-4 are simultaneously on a straight line that is orthogonal to the second axis and passes through the second axis.

[0114] Likewise, if Figure 2 and Figure 3As shown, the first centering device 9 includes a first reset member, which applies a force to keep the handle 1 in a neutral position relative to the support portion 2. Specifically, the first centering device 9 includes: a first component, which is fixedly connected to the handle 1 (in the example shown in the figure, it is the part on the Z2 direction side of the rotating shaft 1-4) and is connected to one end of the first reset member; a second component, which is fixedly connected to the support portion 2 (for example, the inner surface of the large diameter portion of the support portion 2) and is 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 the force applied by the first damping member. Furthermore, in the first centering device, the first component includes a first guide portion, which guides at least one of the first damping member and the first abutting member so that the first damping member applies force to the first abutting member on a straight line that is orthogonal to the first axis and passes through the first axis, and the second component is provided with a first cam surface, which is in a V-shape opening 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 further expanded here.

[0115] Likewise, if Figure 2 and Figure 3 As shown, the third return-to-center device 7 includes a third reset member, which applies a force to keep the second retaining seat 4 in a neutral position relative to the first retaining seat 3. Specifically, the third return-to-center device 7 includes: a first component, which is fixedly connected to the first retaining seat 3 (the side plate on the X1 direction side in the example shown in the figure) and connected to one end of the third reset member; a second component, which is fixedly connected to the second retaining seat 4 (the side plate on the X1 direction side in the example shown in the figure) 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 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 the force applied by the third damping member. Furthermore, in the third centering device 7, the first component includes a third guide portion, which guides at least one of the third damping member and the third abutting member so that the third damping member applies force to the third abutting member on a straight line that is orthogonal to the third axis and passes through the third axis, and the second component is provided with a third cam surface, which is in a V-shape opening toward the third axis and is abutted by the third abutting 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 further expanded here.

[0116] (Main Effects of the Present Embodiment)

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

[0118] In addition, according to the side rod device of the present embodiment, the first centering device 9 includes a damping mechanism that applies a damping force when the handle 1 rotates relative to the support portion 2, the second centering device 5 includes a damping mechanism that applies a damping force when the support portion 2 rotates relative to the first retaining seat 3, and the third centering device 7 includes a damping mechanism that applies a 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 surface when the aircraft is flying.

[0119] In addition, according to the side rod device of the present embodiment, in the first return-centering device 9, as a damping mechanism, a first damping member that applies 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 are provided; in the second return-centering device 5, as a damping mechanism, a second damping member that applies 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 are provided; in the third return-centering device 7, as a damping mechanism, a third damping member that applies 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 are provided; therefore, a side rod feedback force and displacement curve that better meets the designer's intention can be obtained.

[0120] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned embodiments.

[0121] For example, in the above-mentioned embodiment, the second cam surface of the second centering device 5 is formed by a pair of flat plates, but it is not limited thereto. Fig.10 and Fig.11 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-mentioned embodiment, the first cam surface of the first centering device 9 is in a V-shape opening toward the first axis, but the present invention is not limited thereto. For example, by forming the first cam surface on the first member, the first cam surface of the first centering device 9 may be formed in 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 may be formed in the same manner.

[0123] In addition, in the above-mentioned embodiment, 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 into a V shape, but are not limited to this, and can also be formed into a U shape, and can also be formed into other shapes as needed.

[0124] In addition, in the above-mentioned embodiment, the first retaining seat 3 supports the supporting part 2 so that the supporting part 2 can rotate around the second axis, and the second retaining seat 4 supports the first retaining seat 3 so that the first retaining seat 3 can rotate around the third axis, but it is not limited to this. It can also be configured that the first retaining seat 3 supports the supporting part 2 so that the supporting part 2 can rotate around the third axis, and the second retaining seat 4 supports the first retaining seat 3 so that the first retaining seat 3 can rotate around the second axis.

[0125] Furthermore, in the above-mentioned embodiment, the detection output unit can form a first state and a second state, in which the detection result is output only as rudder deflection control information in the first state, and in which the detection result is output only as front wheel turning control information in the second state, but the present invention is not limited thereto, and the detection output unit can also form a third state, in which the detection result is output simultaneously as rudder deflection control information and front wheel turning control information (for example, by pressing the rudder control button 1-2 and the front wheel turning control button 1-3 at the same time, the rudder deflection control information and the front wheel turning control information are output simultaneously). Alternatively, the detection output unit can form any two of the first state, the second state, and the third state.

[0126] In addition, in the above-mentioned embodiment, it is also possible that in a first state, the control unit activates the first sensor component 10 and deactivates the second sensor component 11 (for example, stops supplying power to the second sensor component 11), and in a second state, the control unit deactivates the first sensor component 10 (for example, stops supplying power to the first sensor component 10) and activates the second sensor component 11.

[0127] In addition, in the above-mentioned embodiment, the rotation detection unit includes two sensor components, but is not limited to this. Only one sensor component may be provided, and the detection result may be output as information for rudder deflection control or as information for front wheel turning control according to the control of the control unit.

[0128] In addition, in the above-mentioned embodiment, the rudder control button 1-2 and the front wheel turning control button 1-3 are both arranged on the handle 1, but it is not limited to this, and they can also be arranged on other components such as the support part 2.

[0129] In addition, in the above embodiment, the rudder control button 1-2 and the front wheel turning control button 1-3 are preferably provided with indicator lights to indicate whether the rudder control button 1-2 and the front wheel turning control button 1-3 are pressed.

[0130] In addition, in the above-mentioned embodiment, the control unit includes separately arranged rudder control buttons 1-2 and front wheel turning control buttons 1-3, but is not limited to this. A control component such as a lever may also be used to implement the switching action (for example, switching to the first state when turned to one position, and switching to the second state when turned to another position).

[0131] In addition, the side rod device of the present invention can be provided together with the rudder pedal and the front wheel steering hand wheel. Thus, when the rudder pedals of the pilot and the co-pilot are blocked or fail at the same time in the air, the side rod device can be used to control the rudder. On the other hand, when the front wheel steering hand wheel of the aircraft is blocked or fails, the side rod device can be used to control the front wheel of the aircraft. Therefore, the control reliability of the aircraft can be improved, and the safety margin can be increased.

[0132] It should be understood that within the scope of the present invention, various parts in the embodiments can be freely combined, or various parts in the embodiments can be appropriately deformed 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, the support portion supporting the handle so that the handle can rotate relative to the support portion around a first axis; as well as A detection output unit detects the rotation of the handle relative to the support unit and outputs the detection result as rudder deflection control information and front wheel turning control information.

2. The side rod device according to claim 1, characterized in that The detection output unit can form at least two states of 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 outputted only as information for front wheel turning control. In the third state, the detection result is outputted simultaneously as the rudder steering control information and the front wheel turning control information.

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

4. The side rod device according to claim 3, characterized in that: The control unit includes: a rudder control button, which constitutes an operating member and controls at least one of an action and an output of the first sensor assembly; and A front wheel turning control button constitutes an operating member and controls at least one of the action and output of the second sensor assembly.

5. The side rod device according to claim 1, characterized in that: including a locking and unlocking part, The locking and unlocking part constitutes an operating member and can be switched between a locked state and an unlocked state. In the locked state, the lock unlocking portion locks the handle relative to the support portion. In the unlocked state, the lock-unlock portion enables the handle to rotate relative to the support portion.

6. The side rod device according to claim 5, characterized in that The handle has a first engaged portion. The supporting portion has a second engaged portion, The locking and unlocking portion has a snap-fitting portion. The locking and unlocking portion is locked when the engaging portion is engaged with the first engaged portion and the second engaged portion, and is unlocked when the engaging portion is withdrawn from at least one of the first engaged portion and the second engaged portion.

7. The side rod device according to claim 4 or 5, characterized in that: The operating member is arranged on the handle. A protective cover is provided on the handle. The protective cover can be switched between a covering position and an open position. At the covering position, the protective cover covers the operating member. In the open position, the protective cover exposes the operating member.

8. The side rod device according to claim 1, characterized in that: comprising a first holding seat and a second holding seat, The first retaining seat supports the support portion so that the support portion can rotate around a second axis intersecting the first axis. The second holding seat supports the first holding seat so that the first holding seat can rotate around a third axis intersecting the first axis and the second axis.

9. The side rod device according to claim 8, characterized in that Including return device, The centering device includes at least one of a first centering device, a second centering device, and a third centering device. The first centering device comprises a first restoring member, which applies a force to keep the handle in a neutral position relative to the support portion. The second centering device includes a second restoring member, which applies a force to keep the support portion at a neutral position relative to the first holding seat. The third centering device includes a third restoring member, which applies a force to keep the first retaining seat in a neutral position relative to the second retaining seat.

10. The side rod device according to claim 9, characterized in that The first centering device comprises: a first component, which is fixedly connected to the handle and connected to one end of the first return member; a second component, which is fixedly connected to the support portion and connected to the other end of the first return 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 urged by the first damping member to abut against the other of the first component and the second component. The second centering device includes: a first component, which is fixedly connected to the support portion and connected to one end of the second return member; a second component, which is fixedly connected to the first retaining seat and connected to the other end of the second return 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, which is connected to the other end of the second damping member and is urged by the second damping member to abut against the other of the first component and the second component. The third return device includes: a first component, which is fixedly connected to the first retaining seat and connected to one end of the third return member; a second component, which is fixedly connected to the second retaining seat and connected to the other end of the third return 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 urged by the third damping member to abut against the other of the first component and the second component.

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

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