阅读说明：本技术 用于飞行器的机翼、地面闩锁装置和飞行器 (Wing for an aircraft, ground latching device and aircraft ) 是由 克里斯蒂安·洛伦茨 于 2019-05-27 设计创作，主要内容包括：本发明公开了一种用于飞行器(1)的机翼(3),该机翼包括固定翼(5)和可折叠翼梢部分(9),该可折叠翼梢部分经由铰接件(11)安装至固定翼(5)并且能够围绕铰接轴线(13)在伸展位置(15)与折叠位置(17)之间旋转。本发明的目的是提供具有降低复杂性的致动单元的机翼,该目的通过包括地面闩锁装置(21)的机翼(3)来实现,该地面闩锁装置用于将可折叠翼梢部分(9)闩锁在折叠位置(17)。本发明还涉及一种地面闩锁装置(21)和飞行器(1)。(The invention discloses a wing (3) for an aircraft (1), comprising a fixed wing (5) and a foldable wing tip section (9) which is mounted to the fixed wing (5) via a hinge (11) and is rotatable about a hinge axis (13) between an extended position (15) and a folded position (17). The object of the invention is to provide a wing with an actuation unit of reduced complexity, which is achieved by a wing (3) comprising a ground latching device (21) for latching a foldable wing tip section (9) in a folded position (17). The invention also relates to a ground latching device (21) and an aircraft (1).)

1. Wing (3) for an aircraft (1), the wing (3) comprising

A fixed wing (5), and

A foldable wing tip portion (9), the foldable wing tip portion (9) being mounted to the fixed wing (5) via a hinge (11) and being rotatable about a hinge axis (13) between an extended position (15) and a folded position (17),

It is characterized in that the preparation method is characterized in that,

The wing (3) comprises a ground latching arrangement (21), the ground latching arrangement (21) being for latching the foldable wing tip portion (9) in the folded position (17).

2. Wing according to claim 1, wherein the ground latching means (21) are formed separately and independently from flight latching means (23), the flight latching means (23) being used for latching the foldable wing tip part (9) in the extended position (15), and the ground latching means (21) are formed separately and independently from an actuation unit (19), the actuation unit (19) being used for actuating the foldable wing tip part (9) for movement about the hinge axis (13).

3. wing according to claim 1 or 2, wherein the ground latching device (21) comprises

A base part (25), the base part (25) being mounted to the wing (3),

A latch element (27), the latch element (27) being mounted to the base component (25) and being movable between a latched position (33) in which the latch element (27) prevents the foldable wing tip portion (9) from moving out of the folded position (17) and an unlatched position (35) in which the latch element (27) allows the foldable wing tip portion (9) to move out of the folded position (17), and

a latch motor (29), the latch motor (29) for driving the latch element (27) to move between the latched position (33) and the unlatched position (35).

4. Wing according to claim 3, wherein the latching element (27) is mounted to the base part (25) and pivotable about a latching axis (31) between the latched position (33) and the unlatched position (35), wherein the latching motor (29) drives the latching element (27) to pivot about the latching axis (31).

5. wing according to claim 4, wherein the latching element (27) has an elongated shape extending perpendicular to the latching axis (31) from an inner end (37) at the latching axis (31) to an outer end (39) remote from the latching axis (31).

6. Wing according to any of claims 3 to 5, wherein the latching element (27) has a wedge-shaped cross-section when viewed transversely to the direction of extension of the latching element (27).

7. wing according to any of claims 3 to 6, wherein in the latching position (33) the latching element (27) extends in a recess (41) which is open between the foldable wing tip part (9) and the fixed wing (5) when the foldable wing tip part (9) is moved into the folded position (17), and wherein the latching element (27) is clamped from opposite sides between a first clamping element (43) and a second clamping element (45), the first clamping element (43) being mounted to the fixed wing (5) and the second clamping element (45) being mounted to the foldable wing tip part (9).

8. The wing as claimed in claim 7, wherein the first clamping element (43) and the second clamping element (45) relate to respective lugs (47) of a flight latching device (23), the lugs (47) being used for latching the foldable wing tip part (9) in the extended position (15).

9. wing according to any of claims 3 to 8, wherein in the latched position (33) the latching element (27) extends parallel to the hinge axis (13).

10. The wing as claimed in any of claims 3 to 9, wherein the latch axis (31) is perpendicular to the hinge axis (13).

11. A ground latching device (21) for latching a foldable wing tip portion (9) of a wing (3) of an aircraft (1) in a folded position (17) relative to a fixed wing (5), the ground latching device (21) comprising

A base component (25), the base component (25) being configured to be mounted to the wing (3),

A latch element (27) mounted to the base component (25) and pivotable about a latch axis (31) between a latched position (33) in which the latch element (27) is configured to prevent movement of the foldable wing tip portion (9) out of the folded position (17) and an unlatched position (35) in which the latch element (27) is configured to allow movement of the foldable wing tip portion (9) out of the folded position (17), and

A latch motor (29), the latch motor (29) for driving the latch element (27) to pivot about the latch axis (31).

12. a ground latching arrangement according to claim 11, wherein the latching element (27) has an elongated shape which is perpendicular to the latching axis (31) and extends from an inner end (37) at the latching axis (31) to an outer end (39) remote from the latching axis (31).

13. Ground latching device according to claim 11 or 12, wherein the latching element (27) has a wedge-shaped cross-section when viewed transversely to the extension direction of the latching element (27) from the inner end (37) to the outer end (39).

14. An aircraft (1), the aircraft (1) comprising a wing (3) according to any one of claims 1 to 10 or comprising a ground latching device (21) according to any one of claims 11 to 13.

Technical Field

The present invention relates to a wing for an aircraft, in particular to a foldable wing comprising a fixed wing and a foldable wing tip section. Another aspect of the invention relates to a ground latching device for latching a foldable wing tip portion of an aircraft wing in a folded position relative to a fixed wing. A further aspect of the invention relates to an aircraft comprising such a wing and/or such a ground latching device.

Background

Such a wing comprises a fixed wing for mounting to a fuselage and a foldable wing tip section which is mounted to the fixed wing via a hinge or articulation and is rotatable about the hinge axis between an extended position in which the foldable wing tip section extends as a continuous extension of the fixed wing, preferably in a common plane with the fixed wing, and a folded position in which the foldable wing tip section extends upwards or rearwards, so that the overall span of the aircraft is reduced compared to the overall span in the extended position. In particular, when the foldable tip section is foldable upwards, the hinge axis extends in a horizontal plane and/or parallel to the chord line and/or parallel to the wing surface and/or in the flight direction of the aircraft. Alternatively, when the foldable wing tip section is capable of folding backwards, the hinge axis extends in a vertical direction and/or in a wing depth direction and/or in a direction transverse or perpendicular to the wing surface.

Preferably, the wing further comprises an actuation unit for actuating the foldable wing tip section to move the foldable wing tip section relative to the fixed wing about the hinge axis, i.e. between the extended position and the folded position. The actuation unit may be formed in various ways, for example as a rack and pinion transmission, and may be mounted between the fixed wing and the foldable wing tip portion near the hinge axis.

Foldable wings were developed in order to reduce the space required during operation and parking of the aircraft on the ground. Once the aircraft lands, the foldable tip portion of the wing folds up or back, thereby reducing the overall span of the aircraft.

In the extended position, the foldable wing tip section is typically secured by a separate stop device. However, in the folded position, the foldable wing tip portion is typically only retained by the actuation unit when the aircraft is on the ground. This means that the actuation unit needs to be designed not only to move the foldable wing tip section, but also to hold the foldable wing tip section in place.

It is therefore an object of the present invention to provide a wing with an actuation unit of reduced complexity.

Disclosure of Invention

This object is achieved by a wing comprising a ground latching device for latching a foldable wing tip section in a folded position when the aircraft is on the ground. In this way, the actuation unit does not need to hold the foldable wing tip part in the folded position and therefore the complexity of the design can be reduced. Furthermore, failure of the actuation unit does not result in the foldable wing tip portion moving out of the folded position.

According to a preferred embodiment, the ground latching means are formed separately and independently from flight latching means for latching the foldable wing tip portion in the extended position. Such a separate ground latch arrangement may be specifically designed for latching in the folded position and need not meet the requirements of latching in the extended position. Furthermore, the ground latching means are formed separately and independently from the actuating unit. This allows the floor latch to be actuated separately and separately from the actuation unit, thereby reducing the complexity of both the actuation unit and the floor latch.

According to another preferred embodiment, the floor latching device comprises a base part, a latching element and a latching motor. The base part is mounted to, i.e. fixedly connected to, a respective part of the wing, i.e. a fixed wing or a foldable wing tip part, preferably in the vicinity of the hinge. The base component may also be mounted to the wing via other parts. A latch element is mounted to the base component and is movable between a latched position in which the latch element prevents movement of the foldable wing tip portion out of the folded position and an unlatched position in which the latch element allows movement of the foldable wing tip portion out of the folded position. The latch motor is configured for driving the latch element to move the latch element between the latched and unlatched positions, and is preferably an electric or hydraulic motor. In this way, a particularly simple and reliable floor latching device is formed.

In particular, it is preferred that the latching element is mounted to the base part and pivotable about a latching axis between a latched position and an unlatched position, wherein the latching motor drives the latching element to pivot about the latching axis between the latched position and the unlatched locked position. Such a pivotally movable latching element is very simple, reliable and space-saving. However, it may also be preferred in other embodiments that the latching element is moved between the latched position and the unlatched position in another way, for example by a translational movement along or transverse to the direction of extension of the latching element, or by a curved path.

it is also preferred that the latch element has an elongated shape, preferably extending perpendicular to the latch axis from an inner end, preferably at the latch axis, to an outer end, preferably remote from the latch axis. This involves a simple and effective form of the latching element.

It is also preferred that the latching element has a wedge-shaped cross-section when viewed transversely to the direction in which the latching element extends, preferably from the inner end to the outer end. Preferably, the shape of the cross-section extends continuously along the extension of the latch element from the inner end to the outer end. In this way, a particularly effective latching element is formed which can be clamped between the fixed wing and the foldable wing tip part.

According to a preferred embodiment, when the foldable wing tip portion is moved into the folded position, in the latched position the latching element extends in a recess or gap which opens between the foldable wing tip portion and the portion of the fixed wing below the hinge axis. In this recess, the latch element is clamped from opposite sides between a first clamping element 43 mounted to the fixed wing or fixed wing part and a second clamping element 45 mounted to the foldable wing tip part or a part of the foldable wing tip part. In this way, the latching element, which is preferably wedge-shaped, is clamped between the first clamping element and the second clamping element and blocks their relative movement, so that the foldable wing tip part cannot move out of the folded position. The foldable wing tip portion opposite the latching element in the folded position preferably rests against a stop provided on the fixed wing, so that the foldable wing tip portion is clamped between the stop and the latching element.

in particular, it is preferred that the first and second clamping elements relate to respective lugs of a flight latching device for latching the foldable wing tip portion in the extended position. The lugs are generally formed to align and generally receive a latch bolt to latch the foldable wing tip portion in the extended position. When the lugs are aligned, they are located below the hinge axis with respect to the thickness direction of the wing of the aircraft in the normal position on the ground. When the foldable wing tip part is in the folded position, gap-like recesses are formed between the lugs of the fixed wing and the lugs of the foldable wing tip part. Preferably, the latch element is shaped to fit tightly into the recess. In this way, installation of the ground latch requires minimal modification to the existing wing.

According to a further preferred embodiment, in the latched position, the latching element extends parallel to the hinge axis. In this way, the latching element has a maximum effective surface and is uniformly loaded by the clamping element.

According to a further preferred embodiment, the latch axis is perpendicular to the hinge axis. In this way, the latching element can be easily pivoted such that it extends parallel to the hinge axis.

Another aspect of the invention relates to a ground latching device for latching a foldable wing tip portion of a wing of an aircraft in a folded position relative to a fixed wing. Such as for an airfoil according to any of the preceding embodiments. The features and effects described above in connection with the wing are equally applicable to the ground latching device. In particular, the floor latching arrangement comprises a base part, a latching element and a latching motor. The base part is mounted to the corresponding part of the wing, i.e. the fixed wing or the foldable wing tip part, preferably in the vicinity of the hinge. A latch element is mounted to the base component and is pivotable about a latch axis between a latched position in which the latch element prevents movement of the foldable wing tip portion out of the folded position and an unlatched position in which the latch element allows movement of the foldable wing tip portion out of the folded position. The latch motor is configured for driving the latch element to move the latch element about the latch axis, and is preferably an electric motor or a hydraulic motor. In this way, a particularly simple and reliable floor latching device is formed.

In particular, it is preferred that the latching element has a preferably elongated shape extending perpendicular to the latching axis from an inner end at the latching axis to an outer end remote from the latching axis. It is also preferred that the latching element has a wedge-shaped cross-section when viewed transversely to the direction of extension of the latching element from the inner end to the outer end. Preferably, the shape of the cross-section extends continuously along the extension of the latch element from the inner end to the outer end. In this way, a particularly effective latching element is formed which can be clamped between the fixed wing and the foldable wing tip part.

a further aspect of the invention relates to an aircraft comprising a wing according to any of the embodiments described above or a ground latching device according to any of the embodiments described above. The features and effects described above in connection with the wing and ground latching arrangements are equally applicable to this aircraft.

Drawings

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The drawings are as follows:

Figure 1 is a perspective view of an aircraft according to an embodiment of the invention,

fig. 2 is a perspective view of the ground latch unit at the wing of the aircraft shown in fig. 1, with the latch element in an unlatched position,

FIG. 3 is a perspective view of the floor latch unit shown in FIG. 2 with the latch element in the latched position, an

Fig. 4 is a different perspective view of the floor latch unit shown in fig. 3.

Detailed Description

Fig. 1 illustrates an exemplary aircraft according to an embodiment of the invention. The aircraft 1 comprises a foldable wing 3, the foldable wing 3 comprising a fixed wing 5 mounted to a fuselage 7 and a foldable wing tip section 9 movably mounted to the fixed wing 5.

Fig. 2 to 4 show the wing 3 of the aircraft 1 shown in fig. 1 in more detail. The foldable wing tip portion 9 is mounted to the fixed wing 5 via a hinge 11 and is rotatable about a hinge axis 13 between an extended position 15 (see fig. 2) and a folded position 17 (see fig. 3 and 4). In the extended position 15 the foldable wing tip part 9 extends as a continuous extension of the fixed wing 5 in a common plane with the fixed wing 5, wherein in the folded position 17 the foldable wing tip part 9 extends upwards to reduce the overall span of the aircraft 1. The hinge axis 13 extends parallel to the chord line and in the direction of flight of the aircraft 1. Furthermore, the wing 3 comprises an actuation unit 19 for moving the foldable wing tip part 9 relative to the fixed wing 5 about the hinge axis 13.

The wing 3 further comprises ground latching means 21 for latching the foldable wing tip part 9 in the folded position 17. The ground latching means 21 are formed separately and independently of the flight latching means 23, which flight latching means 23 are used to latch the foldable wing tip part 9 in the extended position 15. Furthermore, the ground latching means 21 are formed separately and independently from the actuating unit 19.

The ground latching arrangement 21 comprises a base part 25, a latching element 27 and a latching motor 29. The base part 25 is mounted to the fixed wing 5 in the vicinity of the hinge axis 13. The latching element 27 is mounted to the base part 25 and is pivotable about a latching axis 31 between a latched position 33, in which latching position 33 the latching element 27 prevents the foldable wing tip portion 9 from moving out of the folded position 17, and an unlatched position 35, in which unlatching position 35 the latching element 27 allows the foldable wing tip portion 9 to move out of the folded position 17. The latching motor 29 is configured to drive the latching element 27 about a latching axis 31.

The latching element 27 has an elongated shape extending perpendicular to the latching axis 31 from an inner end 37 at the latching axis 31 to an outer end 39 remote from the latching axis 31. Furthermore, the latch element 27 has a wedge-shaped cross-section when viewed transverse to the direction of the elongated extension of the latch element 27 from the inner end 37 to the outer end 39. The ground latching means 21 is arranged with the latching axis 31 perpendicular to the hinge axis 13. In the latching position 33, the latching element 27 extends parallel to the hinge axis 13.

When the foldable wing tip part 9 is moved into the folded position 17, in the latching position 33 the latching element 27 extends within a recess 41, which recess 41 opens between the foldable wing tip part 9 and the fixed wing 5 below the hinge axis 13. In this recess 41, the latching element 27 is clamped from opposite sides between a first clamping element 43 mounted to the fixed wing 5 and a second clamping element 45 mounted to the foldable wing tip portion 9. In the present embodiment, the first and second clamping elements 43, 45 relate to respective lugs 47 for latching the flight latch 23 of the foldable wing tip part 9 in the extended position 15. The lug 47 is located below the hinge axis 13 with respect to the wing thickness direction 49.

The wedge-shaped latching element 27 is clamped between the first and second clamping elements 43, 45, i.e. between the opposite corresponding lugs 47 of the fixed wing 5 and the foldable wing tip portion 9, and this latching element 27 blocks the relative movement of the first and second clamping elements, so that the foldable wing tip portion 9 cannot move out of the folded position 17. The latch element 27 is shaped to fit snugly into the recess 41.