Flip cover unit for an opening in a vehicle and vehicle

Abstract

The invention relates to a flap unit (1) for covering an opening (101) of a vehicle (100), in particular a loading opening or a tank opening, wherein the flap unit (1) comprises at least: a frame (3), and a movable panel (2), which is arranged within the circumferential area of ​​the frame (3), wherein the panel (2) is movable between a closed position (P0) and an open position (P2), in which the panel (2) is flush with the frame (3) and is held closed, and wherein the panel (2) can be moved into a partially raised intermediate position (P1) both in the case of an opening movement starting from the closed position (P0) and in the case of a closing movement starting from the open position (P2).

Description

Technical Field

[0001] The present invention relates to a flap unit for covering an opening on a vehicle, in particular a loading opening or a fuel tank opening. Furthermore, the present invention also relates to a vehicle having such a flap unit. Background Art

[0002] In vehicles, openings in the vehicle body, such as loading openings or tank openings, are closed by means of panels or flaps (also called covers) to prevent contamination and improper operation. Flaps are known, for example, from DE 10 2020 207 669 A1 or DE 10 2012 009 018 A1. Summary of the Invention

[0003] The object of the present invention is to provide a flap unit for covering an opening in a vehicle, which has a simple structure and is easy to operate. In particular, the object is to provide a flap unit that remains sufficiently tightly closed even with large, in particular long, panels. Furthermore, the object of the present invention is to provide a vehicle having an improved flap unit.

[0004] The present invention achieves the above object through a flip cover unit having the features described in the following invention summary. In terms of the vehicle, the solution used by the present invention to achieve the above object is the features described in the following invention summary with respect to the vehicle.

[0005] For advantageous developments, see the features described in the further embodiments.

[0006] According to the invention, a flap unit for covering an opening in a vehicle, in particular a loading opening or a tank opening, comprises at least one frame and a panel (e.g., a cover or closure flap), the panel being movably arranged on the frame by means of a displacement mechanism, wherein the panel is movable between a closed position and an open position, and wherein, both during the opening movement of the panel from the closed position into the open position and during the closing movement of the panel from the open position into the closed position, the displacement mechanism is pivotable about a first rotation axis, and the panel is pivotable relative to the displacement mechanism about a second rotation axis and is at least proportionally movable in translation into a partially raised intermediate position. In particular, the panel can be unlocked by the combined pivoting and proportionally movable translation into the raised intermediate position.

[0007] The panel is adapted so that it can be operated both electrically and manually.

[0008] The advantage of the invention is that, in particular, by virtue of the partially raised intermediate position of the panel, for example during the closing movement, the retaining end of the panel remote from the drive first comes into contact with the frame, so that during the further closing movement this retaining end of the panel remote from the drive can be brought into a closed (in particular interlocking) position in a form-fitting manner, and the driven end of the panel then rests flush and sealingly on the frame. This makes it possible to achieve a higher sealing force of the panel on the frame, since the drive force, in particular the motor force, acts on the drive end and a counter-bearing is formed on the retaining end of the panel remote from the drive.

[0009] Furthermore, such a flap unit with a drive end or side and an interlocking counter-bearing on the retaining end of the panel facing away from the drive allows for increased security against vandalism, since the two side faces or ends of the panel abut and interlock in a form-fitting manner. Furthermore, the wedge-shaped undercut at the retaining end of the panel facing away from the drive allows for flush alignment of the panel on the frame.

[0010] In contrast, during the panel's opening movement, the elevated intermediate position allows the panel's driven end to be raised first, and only then does the remotely driven retaining end open, particularly by pivoting outward, to the open position. This improves ice-breaking force. For example, the initial movement of the driven end, which first raises the panel to the intermediate position while the remotely driven retaining end remains in contact with the frame, makes this possible. Consequently, the panel is not rigidly connected to the frame and cannot separate from it simultaneously and in parallel.

[0011] A further aspect provides that, when the panel moves from the raised intermediate position into the open position, the panel can be pivoted together with the displacement mechanism about the first rotation axis, and vice versa. In this case, the panel moves relative to the frame and, for example, relative to the vehicle housing in which the frame is mounted, and is opened or closed therein.

[0012] An improved solution is provided in which the displacement mechanism is arranged between the panel and the frame. In particular, the displacement mechanism is arranged between the panel and the frame at the driving end of the movable panel.

[0013] In particular, the panel can be positioned relative to the frame in a partially tensioned, raised intermediate position by means of a shifting mechanism so that the drive end of the panel can be raised or raised, in particular can be raised or raised at a distance from the frame, and the opposite end of the panel facing away from the drive is in contact with the frame.

[0014] A further embodiment provides that the retaining end of the panel (in particular the side of the panel facing away from the drive) can be releasably locked to the frame by means of a closure mechanism. For example, the closure mechanism is designed as a snap-fit ​​mechanism, in particular a form-fitting snap-fit ​​connection. Thus, in the closed position of the panel, a counter-bearing for the drive end of the panel is provided at the retaining end of the panel facing away from the drive.

[0015] In a further embodiment, the displacement mechanism comprises a double swivel joint. For example, the double swivel joint comprises a first swivel joint, which is hinged to the frame and connected via a connecting element to a second swivel joint, which is hinged to the panel. In other words, compared to conventional displacement devices for panels, the displacement mechanism of the present panel comprises an additional swivel joint. The connecting element is particularly designed as a pivot lever, a coupling lever, a displacement lever, or a pivot arm, a coupling arm, or a displacement arm.

[0016] The connecting element, in particular the shift lever, is coupled to the panel on the one hand and is, on the other hand, pivotably mounted on the frame about a first rotation axis by means of a first rotational joint. For example, the shift lever is designed such that it moves the panel out of the plane of the frame, in particular first pivots and raises the panel into a raised intermediate position and then pivots it into the open position.

[0017] The shift lever can be designed as a single piece. The shift mechanism has a socket for a first rotary joint arranged on the frame. In addition, the panel includes an internal bearing element for a second rotary joint.

[0018] In a feasible embodiment, the panel can be designed as a single piece. Alternatively, the panel can be designed as a multi-piece, in particular a two-piece.

[0019] The panel can be actuated and / or displaced manually, for example by means of a push-button actuation and a manual displacement movement, or electrically, for example by means of an electrically movable panel.

[0020] For example, the shift mechanism can be coupled to an operating mechanism for the panel. An electric operating mechanism can be directly coupled to the shift mechanism and can, for example, be designed as a motor drive, particularly a spindle drive or a gear drive. A manual operating mechanism can be directly coupled to the panel and, for example, can be designed as a push-button operating unit, particularly a so-called push-push mechanism.

[0021] In addition, a spring element can be provided, in particular at the drive end of the panel, in particular in the region of the second rotary joint, by means of which the panel is held in a tensioned manner in the direction of the frame in the closed position. In particular with panels having large surfaces, a maximum sealing pressure can be generated in the closed position when the spring is tensioned, so that the panel closes flush with the frame and abuts the frame in a sealing manner. For example, the spring element can be designed as a bistable leg spring.

[0022] In a simple embodiment, the rotation axis of the first rotary joint and the rotation axis of the second rotary joint are arranged parallel to each other, wherein the rotation axis can be horizontal or vertical depending on the opening direction of the panel (vertical or horizontal opening).

[0023] The connecting member (especially designed as a shift rod, pivot rod or coupling rod) is configured to move in a first arc around a first rotation axis at a first rotation joint. The panel (especially the cover) is configured to move in a second arc around a second rotation axis at a second rotation joint.

[0024] The vehicle according to the invention comprises an opening, in particular a loading opening or a tank opening, and the above-mentioned flap unit for covering the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The embodiments of the present invention are described in detail with reference to the accompanying drawings.

[0026] Figure 1 A vehicle having an opening and a flap unit for covering the opening is shown,

[0027] Figure 2 shows a cross-sectional view of the flip unit with the panel of the flip unit in the closed position,

[0028] Figure 3 shows a cross-sectional view of the flip unit with the panel in a raised intermediate position in which the panel is at least partially in contact with the frame,

[0029] Figure 4 shows a cross-sectional view of the flip unit with the panel in an intermediate position raised and spaced from the frame,

[0030] Figure 5 shows a cross-sectional view of the flip unit with the panel of the flip unit in the open position,

[0031] Figure 6 A cross-sectional view of the flip unit is shown with the panel of the flip unit in an erroneous operation position, and

[0032] Figure 7A cross-sectional view of the flip unit is shown with its panels in a closing movement.

[0033] The same components are denoted by the same reference numerals throughout the drawings. DETAILED DESCRIPTION

[0034] Figure 1 A vehicle 100 is shown having an opening 101 in a vehicle housing 102. The opening 101 is, for example, a tank opening or a loading opening. For example, the opening 101 can be covered by a flap unit 1, which will be described in more detail below. For this purpose, the flap unit 1 can be installed in the region of the opening 101 in the vehicle housing 102.

[0035] With reference to the accompanying drawings, the flap unit 1 is described below in a rectangular coordinate system defined by three mutually perpendicular spatial directions. When the flap unit 1 is installed in the vehicle 100, the longitudinal direction X is substantially horizontal and preferably parallel to the longitudinal direction of the vehicle 100, which corresponds to the normal direction of travel of the vehicle 100. The transverse direction Y, which is perpendicular to the longitudinal direction X, is also oriented horizontally in the vehicle 100 and parallel to the transverse direction Y of the vehicle 100. The vertical direction Z is perpendicular to the longitudinal direction X and perpendicular to the transverse direction Y. A vertical arrangement should be understood as referring to an arrangement parallel to the vertical direction Z.

[0036] Figure 2 A first embodiment of a flap unit 1 with a front panel 2 is shown schematically in a sectional view.

[0037] The flip unit 1 comprises at least a panel 2 and a frame 3. The panel 2 is arranged within the circumference of the frame 3. The frame 3 of the flip unit 1 is inserted into an opening 101 in a vehicle housing 102 and fixed therein. The frame 3 forms, for example, an edge of the opening 101.

[0038] Figure 2 The panel 2 is shown in a closed position P0, in which it is flush with the frame 3. The panel 2 is used to cover an opening 101 (not shown) of the vehicle 100, in particular a loading opening or a tank opening. To this end, the flap unit 1 is correspondingly arranged and mounted with the frame 3 in a receptacle (not shown), for example, of the vehicle housing 102, so that the panel 2 is flush with both the frame 3 and the vehicle housing 102.

[0039] The panel 2 is removable and is designed, for example, as a cover or flap for a loading or fuel tank opening. As shown, the panel 2 can be pot-shaped. Alternatively, the panel 2 can be disc-shaped. Away from the frame 3, the panel 2 has a surface shape corresponding to the vehicle shell 102, specifically a substantially flat or slightly curved shape.

[0040] The panel 2 is adapted in such a way that it can be actuated and / or displaced both electrically and manually.

[0041] The panel 2 can be displaced electrically. An electric drive mechanism 4, for example, is coupled to a displacement mechanism 5 for the panel 2 and can be designed, for example, as a motor drive, particularly a spindle drive or a gear drive. The drive mechanism 4 and the displacement mechanism 5 are arranged at the drive end 2.1 of the panel 2 and are coupled to the panel.

[0042] At the retaining end 2.2 of the panel 2, located opposite the drive end 2.1, the panel is provided with a closure mechanism 6, such as a hook 6.1. The closure mechanism 6 allows the panel 2 to be releasably locked to the frame 3. For example, the closure mechanism 6 is designed as a snap-fit ​​mechanism, particularly a form-fitting snap-fit ​​connection. Thus, in the closed position P0 of the panel 2, a counter-bearing for the drive end 2.1 of the panel 2 is formed on the retaining end 2.2 of the panel 2, which is remote from the drive.

[0043] For example, in the closed position P0 of the panel 2 , the hook 6 . 1 hooks onto the undercut 3 . 1 of the frame 3 in a releasably interlocking manner.

[0044] The inner side of the panel 2 is provided with a seal 7, such as a sealing ring, a sealing lip and / or a sealing strip, in the direction of the frame 3. Additionally or alternatively, the frame 3 can be provided with a seal 7, in particular a sealing ring, a sealing lip and / or a sealing strip, in the direction of the panel 2.

[0045] Alternatively, the displacement mechanism 5 can be coupled to a manual, not more specifically shown, operating mechanism for the panel 2. In particular, such a manual operating mechanism is directly coupled to the panel 2 and can, for example, be designed as a push-operated mechanism on the panel 2, in particular a so-called push-push mechanism.

[0046] By means of the shift mechanism 5, whether the panel 2 starts to move from the closed position P0 to the open position P2 ( Figure 5 ) or in the closing movement of the panel 2 from the open position P2 into the closed position P0, the panel 2 is pivoted about the first rotation axis 9, wherein the panel 2 is pivotable relative to the displacement mechanism 5 about the second rotation axis 10 and can be moved at least proportionally to the partially raised intermediate position P1 ( Figure 3 ).

[0047] During the movement of the panel 2 from the partially raised intermediate position P1 into the open position P2 , the panel 2 can be pivoted together with the displacement mechanism 5 about the first rotation axis 9 and vice versa.

[0048] The displacement mechanism 5 can be designed as a double rotary joint 8. For example, the double rotary joint 8 comprises a first rotary joint 8.1 which is hinged at the frame 3 and is connected to a second rotary joint 8.3 which is hinged at the panel 2 via a connection 8.2.

[0049] Compared to conventional displacement devices for panels 2, the displacement mechanism 5 of the present panel 2 comprises additional joints, in particular a second rotary joint 8.3.

[0050] The connecting element 8 . 2 is designed in particular as a pivot lever, a coupling lever or a displacement lever or as a pivot arm, a coupling arm or a displacement arm.

[0051] The connecting element 8.2 is connected to the panel 2 and is pivotally mounted on the frame 3 by means of a first swivel joint 8.1 about a first axis of rotation 9. The panel 2 is pivotally mounted relative to the frame 3 by means of the pivotally mounted connecting element 8.2.

[0052] The connecting piece 8.2 can be designed as a single piece. The shifting mechanism 5 has a socket 3.2 for the first rotary joint 8.1, which is arranged at the frame 3. The socket 3.2 is designed in the area of ​​the drive end 2.1. The cross section of the connecting piece 8.2 is designed as a two-legged, L-shaped, hook-shaped or arc-shaped pivot lever. The end of the connecting piece 8.2 facing the frame 3 (especially the socket 3.2) has the first rotary joint 8.1, while the end facing the panel 2 has the shift pin 8.4. The first rotary joint 8.1 is designed as a sleeve, a cylinder or a spherical shape.

[0053] Two stop arms 3.2.1 and 3.2.2 extend from the joint socket 3.2 and serve as end stops for the displacement mechanism 5 of the panel 2 (in particular for the double swivel joint 8, for example for its connecting piece 8.2). The stop arms 3.2.1 and 3.2.2 extend from the joint socket 3.2 in such a way that they limit the movement of the panel 2 between the closed position P0 and the open position P2 ( Figure 5 For this purpose, at least one leg 8.2.1 of the connecting piece 8.2 strikes against the stop arm 3.2.1 ( Figure 2 ), and in the open position P2 hits the stop arm 3.2.2 ( Figure 5 ).

[0054] Furthermore, the panel 2 has an internal bearing element 2.3 for a second rotary joint 8.3. The panel 2 is pivotably mounted about a second axis of rotation 10 relative to the frame 3 and the connecting piece 8.2 by means of the second rotary joint 8.3.

[0055] In a feasible embodiment, the panel 2 can be designed as a single piece. Alternatively, the panel 2 can be designed as a multi-piece, in particular, a two-piece.

[0056] Additionally, a spring element 11 can be provided on the drive side of the panel 2, ie the drive end 2.1, in particular in the region of the second rotary joint 8.3. By means of the spring element 11, the panel 2 is held prestressed on the frame 3 in the closed position P0.

[0057] In particular, in the case of panels 2 with large areas, a maximum sealing pressure can be generated in the closed position P0 when the spring element 11 is tensioned, so that the panel 2 is flush with the frame 3 and abuts the frame 3 sealingly by means of the seal 7. For example, the spring element 11 is designed as a bistable leg spring.

[0058] Spring element 11 has two spring arms 11.1 and 11.2. In the closed position P0 of panel 2, spring element 11 is tensioned. The spring force of spring element 11 pulls the two spring arms 11.1 and 11.2 toward each other, as indicated by arrow PF1. Consequently, panel pin 2.4 and shift pin 8.4 are subjected to the respective spring forces of their respective spring arms 11.1 and 11.2. Due to this spring force of spring element 11, panel 2 is pulled toward frame 3, as indicated by arrow PF2, resulting in a positively locking and sealing abutment of panel 2 against frame 3.

[0059] In a simple embodiment, the first rotation axis 9 of the first rotation joint 8.1 and the second rotation axis 10 of the second rotation joint 8.3 are arranged parallel to each other. The rotation axes 9 and 10 can be horizontal or vertical, respectively, depending on the opening direction (vertical or horizontal) of the panel 2. In an embodiment, the rotation axes 9 and 10 are vertical, and the panel 2 can be opened horizontally according to arrow PF3.

[0060] The connection element 8.2 (in particular designed as a shift lever, pivot lever or coupling lever) is configured so that it can be moved at the first rotation joint 8.1 about its first rotation axis 9 in a first arc 12. The panel 2 (in particular the cover) is configured so that it can be moved at the second rotation joint 8.3 about its second rotation axis 10 in a second arc 13 according to the arrow PF3.

[0061] Whether in the opening movement starting from the closed position P0 of the panel 2 or in the closing movement starting from the open position P2 of the panel 2, the panel 2 can in each case be moved into a partially raised intermediate position P1 which is Figure 3 Shown in.

[0062] Figure 3 A cross-sectional view of the flip unit 1 is shown with its panel 2 in a partially raised intermediate position P1 in which the panel 2 is at least partially in contact with the frame 3 .

[0063] In particular, the panel 2 can be positioned or is positioned relative to the frame 3 in the partially raised intermediate position P1 by means of the displacement mechanism 5 such that the driving end 2.1 of the panel 2 is raised and spaced apart from the frame 3, and the opposite, remotely driven, retaining end 2.2 of the panel 2 remains in contact with the frame 3, wherein the panel 2 is unlocked. The hook 6.1 no longer engages the undercut 3.1, which is designed, for example, as a snap-on projection on the frame 3.

[0064] For example, the shifting mechanism 5 is designed so that it moves the panel 2 out of the plane of the frame 3, in particular first pivoting the panel into the raised intermediate position P1. For example, the shifting mechanism 5 is adapted so that the panel 2 first moves in a first arc 12 around the first rotation axis 9, thereby raising the driving end 2.1 relative to the frame 3 and the vehicle shell 102 and releasing the locking of the retaining end 2.2. The opposite retaining end 2.2 continues to maintain contact with the frame 3. Alternatively, the flip unit 1 can be designed to be frameless. In one such alternative embodiment, the retaining end 2.2 of the panel 2 continues to be in contact with the vehicle shell 102.

[0065] Additionally, the spring element 11 relaxes, wherein the spring arm 11.2 moves in the direction of the panel 2 according to the arrow PF4, so that the panel 2 pivots relative to the displacement mechanism 5 about the second rotation axis 10 in a second arc 13 according to the arrow PF3 and moves at least proportionally in translation according to the arrow PF5, so that the drive end 2.1 of the panel 2 is raised and the panel 2 is unlocked, in particular the hook 6.1 no longer hooks the undercut 3.1.

[0066] Figure 4 A cross-sectional view of the flip unit 1 is shown, with the panel 2 in a fully raised intermediate position P1.1 (in particular, completely spaced apart from the frame 3), in which the retaining end 2.2 of the panel 2 no longer contacts the frame 3. Further movement of the displacement mechanism 5, in particular of the connecting element 8.2, brings the panel 2 into the fully raised intermediate position P1.1 about the first rotation axis 9 according to arrow PF6. The panel 2 pivots together with the connecting element 8.2 about the first rotation axis 9. The spring element 11 remains relaxed.

[0067] Figure 5 A cross-sectional view of the flip cover unit 1 is shown, with the panel 2 in the open position P2. In this open position P2, the panel 2 is essentially perpendicular to the frame 3. The spring element 11 remains relaxed. The panel 2 has been pivoted together with the displacement mechanism 5 about the first rotation axis 9 according to the arrow PF3 into the open position P2.

[0068] Figure 6A cross-sectional view of the flip cover unit 1 is shown, with the panel 2 in the misoperation position P3. The panel 2 has been manually manipulated, in particular pivoted, relative to the displacement mechanism 5 about the second rotation axis 10 according to arrow PF7. The displacement mechanism 5 is secured to the locking arm 3.2.2 of the frame 3 by the locking leg 8.2.1. The panel 2 can thus be pivoted relative to the frame 3 and the displacement mechanism 5 about the second rotation axis 10 by means of the second rotary joint 8.3. The spring element 11 is tensioned, as the panel pin 2.4 engages the corresponding spring arm 11.1 during the pivoting movement of the panel 2 according to arrow PF7. If the panel 2 is no longer manipulated, it automatically returns to the open position P2 due to the relaxation of the spring element 11, and continues to do so until the spring element 11 relaxes.

[0069] Figure 7 The flap unit 1 is shown in a sectional view with the front panel 2 , which is in a closing movement according to the arrow PF8 due to the relaxation of the spring element 11 .

[0070] List of Figure Numbers

[0071] 1 flip unit

[0072] 2 panels

[0073] 2.1 Drive end

[0074] 2.2 Holding the end

[0075] 2.3 Bearing elements

[0076] 2.4 Panel Pins

[0077] 3 Framework

[0078] 3.1 Undercut

[0079] 3.2 Connector socket

[0080] 3.2.1, 3.2.2 Stop arm

[0081] 4 Drive mechanism

[0082] 5. Shift mechanism

[0083] 6 Closure mechanism

[0084] 6.1 Hook

[0085] 7 Sealing part

[0086] 8 double rotary joints

[0087] 8.1 First rotary joint

[0088] 8.2 Connectors

[0089] 8.2.1 Legs

[0090] 8.3 Second rotary joint

[0091] 8.4 Shift pin

[0092] 9 First rotation axis

[0093] 10 Second rotation axis

[0094] 11 Spring element

[0095] 11.1, 11.2 Spring Arm

[0096] 12 First Arc

[0097] 13 Second Arc

[0098] 100 vehicles

[0099] 101 Opening

[0100] 102 Vehicle shell

[0101] PF1-PF8 Arrow

[0102] P0 closed position

[0103] P1 Partially elevated mid-position

[0104] P1.1 Fully raised intermediate position

[0105] P2 open position

[0106] X vertical direction

[0107] Y horizontal direction

[0108] Z vertical direction

Claims

1. A flip cover unit (1) for covering an opening (101), wherein the flip cover unit (1) at least comprises: - frame (3), and a panel (2) which is movably arranged on the frame (3) by means of a displacement mechanism (5), wherein the panel (2) is movable between a closed position (P0) and an open position (P2), and wherein said panel (2) is interlockable or interlocked in said closed position (P0), and in, In the event of an opening movement of the panel (2) from the closed position (P0) into the open position (P2), and in the event of a closing movement of the panel (2) from the open position (P2) into the closed position (P0), the displacement mechanism (5) can be pivoted about a first rotation axis (9), and the panel (2) can be pivoted about a second rotation axis (10) relative to the displacement mechanism (5) and can be moved at least proportionally in translation to a partially raised intermediate position (P1), and wherein the panel (2) is positionable or positioned relative to the frame (3) in the partially raised intermediate position (P1) by means of the displacement mechanism (5) such that the driving end (2.1) of the panel (2) is raised spaced apart from the frame (3) and the opposite retaining end (2.2) of the panel (2) facing away from the driving is in contact with the frame (3), The displacement mechanism (5) comprises a double rotary joint (8), wherein a first rotary joint (8.1) is hinged at the frame (3) and connected to a second rotary joint (8.3) via a connecting piece (8.2), the second rotary joint being hinged at the panel (2), and A spring element (11) is provided in the region of the second rotary joint (8.3) and can be used to hold the panel (2) in the closed position (P0) in a tensioned manner in the direction of the frame (3).

2. The flip cover unit (1) according to claim 1, wherein, during the movement of the panel (2) from the intermediate position (P1) to the open position (P2), the panel (2) can pivot around the first rotation axis (9) together with the shifting mechanism (5), and vice versa.

3. The flip cover unit (1) according to claim 1 or 2, wherein the shifting mechanism (5) is arranged between the panel (2) and the frame (3).

4. The flap unit (1) according to claim 1 or 2, wherein the retaining end (2.2) of the panel (2) can be releasably locked to the frame (3) by means of a closing mechanism (6).

5. The flap unit (1) according to claim 1, wherein the spring element (11) is designed as a bistable leg spring.

6. The flip unit (1) according to claim 1, wherein the connecting element (8.2) is configured to move in a first arc (12) around the first rotation axis (9) at the first rotation joint (8.1).

7. The flip unit (1) according to claim 1, wherein the panel (2) is configured to move in a second arc (13) around the second rotation axis (10) at the second rotation joint (8.3).

8. A vehicle (100) having an opening (101) and a flap unit (1) according to any one of claims 1 to 7 for covering the opening (101).

9. The vehicle (100) according to claim 8, wherein the opening (101) is a loading opening or a tank opening.

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