Airplane passenger seat

Description

State of the art

[0001] For the outfitting of passenger aircraft, especially long-haul aircraft, passenger seats with one or more seats are known in a variety of designs, for example from EP 1 207 074 B1, WO 2020 / 041616 A1 or GB 2569289 A.

[0002] A seat consists of a seat base and usually also a backrest. Almost every passenger seat allows for different seating positions by adjusting the position of the seat base, the backrest, and often both. This allows passengers to switch between more active postures in an "upright position," for example, for eating meals or during takeoff and landing, and more passive postures in a "reclined position," for example, for relaxing and sleeping.

[0003] In particular, various solutions for moving the seat base and / or the backrest are known. Moving the seat base and / or the backrest allows for seat settings that minimize the impact on the movement space, the so-called "living space," of neighboring passengers, especially those in a row behind.

[0004] Due to the requirement in air transport to make seating arrangements as lightweight as possible and to make the best possible use of a user's available "living space", the design of comfortably adjustable, comparatively lightweight, comparatively inexpensive and at the same time stable passenger seats presents a particular challenge. Purpose and advantages of the invention

[0005] The object of the present invention is to provide an improved aircraft passenger seat. In particular, to provide an aircraft passenger seat which has an improved comfort function.

[0006] This problem is solved by an aircraft passenger seat having the features of claim 1.

[0007] Further possible embodiments of the invention are listed in the dependent claims.

[0008] The invention relates to an aircraft seat, wherein the aircraft seat comprises a frame, a seat assembly, and a backrest element, wherein the seat assembly comprises a seat element, wherein the seat element provides a seat surface on which a user of the aircraft seat can sit directly, wherein the seat assembly comprises a winding element and a first winding shaft, wherein a first end of the winding element is connected to the first winding shaft, wherein the first winding shaft is rotatably arranged about a first winding axis, wherein, upon rotation of the first winding shaft about the first winding axis, the winding element is available in the region of the first end of the winding element to be wound onto or unwound from the first winding shaft, wherein the seat element is connected to the winding element so that, upon rotation of the first winding shaft, the seat element is moved.This results in an aircraft seat with a comparatively comfortable seating surface; in particular, this results in a comparatively lighter and / or cheaper aircraft seat with comparable comfort features.

[0009] The following directional references are advantageously based on the seating direction of the passenger seat. For example, the seating direction of the passenger seat in the aircraft's installed position is also the aircraft's flight direction.

[0010] For example, the frame is designed for attachment to a floor in an aircraft cabin. For instance, the frame has a seat divider and crossbeams running perpendicular to the seating direction, with the seat divider being held in place by the crossbeams.

[0011] For example, the frame has two seat dividers. It is conceivable that the two seat dividers are connected to each other by a crossbar. It is also conceivable that the seat dividers are intended for attaching the passenger seat to the floor of a passenger cabin. The frame includes, for example, a particularly rigid housing for the backrest element. The housing is designed, for example, as a backrest shell. The backrest shell, for example, permanently fixes the extension of the passenger seat, for example, against the direction of travel, in a rearward area.

[0012] For example, the seat surface element is designed to provide a seating surface for a user, and the backrest element is designed to provide a backrest for the back of a passenger in the aircraft seat. According to the invention, the seat surface element is designed as a seat shell or as a seat cushion.

[0013] For example, the seat element is permanently connected to the changing element. This could be achieved by gluing, riveting, or sewing the seat element, for instance. However, it is also conceivable that the seat element is detachably connected to the changing element. For example, the seat element could be detachably connected to the changing element via a hook-and-loop fastener. It is also conceivable that the seat element could be detachably connected to the changing element using a hook-and-loop fastener.

[0014] For example, the seat assembly has a second winding shaft. It is also conceivable that the first and second winding shafts are spaced apart from each other, with a second end of the winding element connected to the second winding shaft, and that the first and second ends of the winding element are opposite each other and spaced apart.

[0015] For example, the passenger seat has a backrest. It's conceivable that the backrest encompasses the backrest element. For instance, the backrest or backrest element has a frame. It's conceivable that the frame is connected to the frame. For example, the frame is immovable and / or fixed in position to the frame. It's conceivable that the frame is designed as a dimensionally stable element.

[0016] For example, the first winding axis of the first winding shaft extends transversely to the seating direction. For example, the first winding axis is aligned parallel to a longitudinal axis of the frame. It is conceivable that the first winding shaft is connected to a seat divider. It is conceivable that the first winding shaft is movably mounted on a seat divider. For example, the first winding shaft connects two seat dividers. For example, the first winding shaft connects the two seat dividers of the aircraft seat.

[0017] It is conceivable that the first and / or the second winding shaft is located below the seat element. It is also conceivable that the first and / or the second winding shaft is located on a side of the seat element opposite the seat surface.

[0018] For example, the passenger seat is designed such that the seat surface moves parallel to the seating direction. This movement of the seat surface could be purely linear. Alternatively, the movement of the seat surface could be a pivoting-sliding motion.

[0019] According to the invention, the seat surface element and the winding element are connected to each other at a connection area, wherein the connection area is a surface on which the seat surface element and the winding element abut each other. It is conceivable that this planar connection area performs a linear movement in the direction of the planar extent of the connection area when the first winding element rotates.

[0020] It is also proposed that the second winding shaft be rotatable about a second winding axis, with the first and second winding shafts being coupled to each other, so that rotation of the first winding shaft results in rotation of the second winding shaft due to the coupling of the winding shafts, or vice versa. This results in a comparatively stable mechanism.

[0021] For example, the second winding axis of the second winding shaft extends transversely to the seating direction. For example, the second winding axis is aligned parallel to a longitudinal axis of the frame. It is conceivable that the second winding shaft is connected to a seat divider. It is conceivable that the second winding shaft is movably mounted on a seat divider. For example, the second winding shaft connects two seat dividers. For example, the second winding shaft connects the two seat dividers of the aircraft seat. It is conceivable that the first and second winding shafts are aligned parallel to each other.

[0022] For example, the first and second winding shafts are spaced apart in the seating direction and / or in the flight direction. For example, the first and second winding shafts are spaced apart in the seating direction and / or in the flight direction. For example, the first and second winding shafts lie in the same winding shaft plane. For example, the winding shaft plane is horizontally oriented.

[0023] For example, the first and / or second winding shaft are rotatably mounted on the frame. It is conceivable that a pivot bearing is present by means of which the first and / or second winding shaft are rotatably mounted. Alternatively, the pivot bearings may be fixed to each other on the frame. It is also conceivable that the pivot bearings are fixed to the frame.

[0024] For example, the rotation range of the first and / or second winding shaft around the first and / or second winding axis is limited. For example, a stop is present that limits the rotation of the first and / or second winding shaft. It is conceivable that the stop is located on the frame. For example, the first winding shaft and / or the second winding shaft can be moved back and forth within a rotation range of 450°, 360°, 270°, 180°, 90°, or 45°. For example, the rotation range of the first winding shaft and / or the second winding shaft is in a range of 30° to 450°, e.g., in a range of 45° to 360°, e.g., in a range of 45° to 270°.

[0025] For example, the winding element is connected to the second winding shaft at one end. Alternatively, the first and second winding shafts can be coupled to each other via the winding element. It is conceivable that the movement of the first winding shaft is coupled to the movement of the second winding shaft via the winding element. For example, the movement of the first and second winding shafts is synchronized by the winding element. It is also conceivable that the winding element is connected to the frame at its other end. For example, the second end of the winding element is fixed to the frame. It is also conceivable that the second end of the winding element is attached directly to the frame.

[0026] It is conceivable that the first and second winding shafts rotate in the same direction. For example, the first and second winding shafts are connected by the winding element in such a way that winding the winding element onto the first winding shaft causes it to unwind from the second winding shaft. It is also conceivable that the first and second winding shafts are coupled in such a way that they rotate in opposite directions.

[0027] It is further proposed that the wrapping element be in the form of a cloth or a band. This makes the wrapping element comparatively inexpensive to produce. For example, this also makes the wrapping element comparatively robust.

[0028] For example, the winding element is made of a fabric, woven material, or textile. It is also conceivable that the winding element is made of a plastic, such as an elastic plastic. For example, the winding element is made of rubber. It is conceivable that the winding element is elastic, so that its length can be changed by winding or unwinding it onto or off the first winding shaft. However, it is also conceivable that an extension, such as the length or width of the winding element, is fixed. For example, the winding element is inelastic in one direction of extension.

[0029] For example, a keder is present at one end of the winding element. It is conceivable that a first keder strip is formed or arranged at the first end of the winding element. It is also conceivable that a keder is present at the second end of the winding element. It is conceivable that a second keder strip is formed or arranged at the second end of the winding element. For example, the distance between the keder strip at the first end of the winding element and the keder strip at the second end of the winding element is fixed.

[0030] It is also proposed that the first winding shaft has a slot and that the winding element is attached to the slot of the first winding shaft via a tongue-and-groove connection with its first end. This allows the winding element to be connected to the first winding shaft relatively easily and securely.

[0031] It is conceivable that the second winding shaft has a slot. It is conceivable that the winding element, with its first keder strip, is pushed onto or into the slot of the first winding shaft. It is also conceivable that the winding element, with its second keder strip, is pushed onto or into the slot of the second winding shaft. For example, the slot of the winding shaft and the keder strip could form a tongue-and-groove connection.

[0032] Furthermore, it is proposed that the distance between the first winding shaft and the second winding shaft is constant. It is conceivable that the distance between the first winding axis and the second winding axis is constant in a direction perpendicular to the winding axis extensions. It is also conceivable that the first and second winding axes are aligned parallel to each other.

[0033] It is further proposed that the passenger seat have a locking element, whereby movement of the first winding shaft and / or movement of the second winding shaft can be blocked by the locking element. This allows the passenger seat to be fixed in a position, e.g., in the takeoff and landing position.

[0034] For example, the locking element is designed as a lever. It is conceivable that the locking element engages in the slot of the first and / or the second winding shaft, thereby fixing the winding shaft in a rotationally fixed position. For example, the locking element is coupled to a rotary bearing of the first and / or the second winding shaft, so that locking of the rotary bearing is possible.

[0035] It is also proposed that the first winding shaft be rotatable from a starting position to an intermediate position around the first winding axis, wherein the passenger seat has a spring element, the first winding shaft being subjected to a spring force by the spring element, such that the first winding shaft can be moved back from the intermediate position to the starting position by the spring force of the spring element. This comparatively increases the comfort function of the passenger seat.

[0036] For example, the passenger seat is in the upright position in its initial position. In an intermediate position, the passenger seat is in a reclined position. The upright position is used, for example, during takeoff and landing. In the reclined position, the passenger can assume a relatively relaxed lying position, such as during the period between takeoff and landing.

[0037] For example, the spring element is designed in the form of a coil spring or a torsion spring. For example, a rotational position of the first winding shaft in the starting position and a rotational position of the first winding shaft in the intermediate position correspond to a value between 30° and 450°. For example, the first winding shaft can be rotated from the starting position around the first winding axis by 30° to 450° to the intermediate position.

[0038] It is also proposed that the seat surface element be detachably connected to the winding element. This allows for relatively simple maintenance of the passenger seat. For example, the winding element extends from the first winding shaft to the second winding shaft along a winding element surface. It is conceivable that the seat surface element is connected to the winding element over an area of ​​less than 90% of the winding element surface. For example, the seat surface element is connected to the winding element over an area of ​​less than 70% of the winding element surface.

[0039] For example, the passenger seat is designed in such a way that a movement of a person sitting on the seat surface can cause movement of the seat surface element. It is conceivable that a person's movement could cause the seat surface to move, and consequently, the first winding shaft could move.

[0040] For example, the passenger seat has a control element that is coupled to the first winding shaft. For instance, a movement or operation of the control element can rotate the first winding shaft. The control lever could be a rotary knob or a lever. For example, the control lever could be directly connected to the first winding shaft. It is also conceivable that the control lever could be coupled to the first winding shaft via a motion mechanism.

[0041] Furthermore, it is proposed that a pulling device be provided, wherein the pulling device is designed to adjust the backrest element of the backrest, and wherein the pulling device includes an adjusting element, the adjusting element being connected to a winding shaft, e.g., the first winding shaft, wherein, during a rotational movement of the winding shaft, the adjusting element is wound onto or unwound from the shaft, and the winding process of the adjusting element changes the position of the backrest element. This provides a comparatively simple adjustability of the backrest element. For example, this allows the adjustment of the backrest element to be coupled with an adjustment of the seat element.

[0042] An exemplary embodiment of the invention is a row of seats with a passenger seat according to one of the preceding embodiments.

[0043] Another exemplary embodiment of the invention is an aircraft with a passenger seat according to one of the aforementioned embodiments or a row of seats according to one of the aforementioned embodiments. Character description

[0044] Further features and advantages of the invention are explained in more detail with reference to schematically illustrated embodiments. Specifically, the following are shown: Figure 1 shows a row of passenger seats in a schematic representation from a diagonal side view, front and top; Figure 2 shows the row of passenger seats according to Figure 1 in a side view, Figure 3, a section of the passenger seat row according to Figure 2, wherein components of a passenger seat of the passenger seat row are kept invisible Figure 4 a winding element arranged on winding shafts of a seat surface group in a view from an oblique side top, Figure 5 a winding element arranged on a winding shaft of a seat surface group in a view from an oblique side bottom, Figure 6 a schematic representation of an arrangement of a winding element on a winding shaft and Figure 7 a seat surface group in a schematic representation from an oblique side top.

[0045] In Figure 1 Figure 1 shows a passenger seat row with passenger seats 2 to 4. Passenger seats 2 to 4 have a frame 5. For example, the frame 5 has seat dividers 6, 7, 8, which are connected to each other by means of beams 9, 10. For example, a beam 9 extends along a longitudinal axis L.

[0046] According to the invention, a passenger seat 2 comprises a seat surface group 11 and a backrest element 12 of a backrest 13. For example, the backrest 13 has a housing in the form of a backrest shell 14 and a frame 15.

[0047] According to the invention, the seat assembly 11 comprises a winding element 16 and a first winding shaft 17. For example, the seat assembly 11 comprises a second winding shaft 18. For example, the first winding shaft 17 and / or the second winding shaft 18 are rotatably mounted about a first winding axis W1 and a second winding axis W2, respectively. It is conceivable that the first winding shaft 17 is spring-loaded by means of a spring element 25.

[0048] For example, the first winding shaft 17 is movably mounted on a pivot bearing 19 of the frame 5. It is also conceivable that the second winding shaft 18 is movably mounted on another pivot bearing 20 of the frame 5. However, it is also conceivable that the second pivot bearing 20 is fixed to the frame 5.

[0049] For example, the winding element 16 has a welt 22 at its first end 21. For example, the welt 22 is reinforced by a welt strip 23. For example, the welt strip 23 is rod-shaped, e.g., as a single rod. For example, the first winding shaft 17 has a slot 24 by means of which the welt 22 can be arranged relatively easily on the first winding shaft 17. It is conceivable that the winding element 16 is designed analogously at its second end 26 to the first end 21.

[0050] For example, the winding element 16 extends from the first winding shaft 17 to the second winding shaft 18 along a winding element surface 27. According to the invention, a seat surface element is attached to the winding element surface 27 (in the Figures 1 to 6 (not shown).

[0051] In Figure 6 A section of the drawing shows a winding element 27, which has a welt 29 at its end and is arranged on a winding shaft 28. For example, the first winding shaft 28 is designed as a welt strip. A welt strip 30 is provided to reinforce the winding element 27, in particular the welt 29. The welt strip secures the winding element 27 to the first winding shaft 28 in a direction transverse to the longitudinal axis of the first winding shaft 28.

[0052] In Figure 7A seat surface group 31 is shown. The seat surface group 31 has a seat surface element 32, which is attached to a winding element surface 33 of a winding element 34 of the seat surface group 31. The winding element 34 is attached at one end to a first winding shaft 35 and at the other end to a second winding shaft 36. For example, the first and second winding shafts 35, 36 are fixedly spaced apart. For example, the first winding shaft 35 is attached to a first pivot bearing 37 of an aircraft seat (in Figure 7 (not shown) and the second winding shaft 36 is rotatably mounted on a second rotary bearing 38 of the passenger seat. Reference symbol list

[0053] 1 Passenger seat row 20 pivot bearing 2 Passenger seat 21 End 3 Passenger seat 22 Keder 4 Passenger seat 23 Keder strip 5 frame 24 slot 6 Seat divider 25 spring element 7 Seat divider 26 End 8 Seat divider 27 winding element 9 Holm 28 winding shaft 10 Holm 29 Keder 11 Seating area group 30 Keder strip 12 Backrest element 31 Seating area group 13 backrest 32 Seating element 14 backrest shell 33 winding element surface 15 Frame 34 winding element 16 winding element 35 winding shaft 17 winding shaft 36 winding shaft 18 winding shaft 37 pivot bearing 19 pivot bearing 38 pivot bearing

Claims

1. Aircraft passenger seat (2), wherein the aircraft passenger seat (2) has a surround (5), a seat face group (11, 31) and a backrest element (12), wherein the seat face group (11, 31) has a seat face element (32), wherein the seat face element (32) provides a seat face, on which a user of the aircraft passenger seat (2) can sit directly, wherein the seat face group (11, 31) has a winding element (16, 34) and a first winding shaft (17, 35), wherein a first end of the winding element (16, 34) is connected to the first winding shaft (17, 35), wherein the first winding shaft (17, 35) is provided so as to be able to be rotated about a first winding axis, wherein, when the first winding shaft (17, 35) is rotated about the first winding axis, the winding element (16, 34) is provided in the region of the first end of the winding element (16, 34) so as to be able to be wound on the first winding shaft (17, 35) or to be unwound from the first winding shaft (17, 35), wherein the seat face element (32) is connected to the winding element (16, 34) so that, when the first winding shaft (17, 35) is rotated, the seat face element (32) is moved, wherein the seat face element (32) is in the form of a seat shell or a seat cushion, wherein the seat face element (32) and the winding element (16, 34) are connected to each other at a connection region, characterized in that the connection region is provided as a face on which the seat face element (32) and the winding element (16, 34) are adjacent to each other.

2. Aircraft passenger seat (2) according to the preceding Claim 1, characterized in that the first winding shaft (17, 35) is formed below the seat face element (32).

3. Aircraft passenger seat (2) according to either of the preceding claims, characterized in that a second winding shaft (18, 36) is provided so as to be able to be rotated about a second winding axis, wherein the first and the second winding shafts are coupled to each other so that, when the first winding shaft (17, 35) is rotated, as a result of the coupling of the winding shafts a rotation of the second winding shaft (18, 36) is brought about or vice versa.

4. Aircraft passenger seat (2) according to one of the preceding claims, characterized in that the winding element (16, 34) is in the form of a cloth or in the form of a strip.

5. Aircraft passenger seat (2) according to one of the preceding claims, characterized in that the first winding shaft (17, 35) has a slot (24) and the winding element (16, 34) is provided in a state pushed onto the slot of the first winding shaft (17, 35) in the form of a tongue and groove connection with the first end of the winding element (16, 34).

6. Aircraft passenger seat (2) according to the preceding Claim 3, characterized in that a spacing of the first winding shaft (17, 35) from the second winding shaft (18, 36) is provided so as to be non-changeable.

7. Aircraft passenger seat (2) according to one of the preceding claims, characterized in that the aircraft passenger seat (2) has a locking element, wherein a movement of the first winding shaft (17, 35) and / or a movement of the second winding shaft (18, 36) can be blocked by the locking element.

8. Aircraft passenger seat (2) according to one of the preceding claims, characterized in that the first winding shaft (17, 35) is provided so as to be able to be rotated about the first winding axis (17, 35) from a starting position into an intermediate position, wherein the aircraft passenger seat (2) has a resilient element (25), wherein the first winding shaft (17, 35) is acted on by the resilient element (25) with a resilient force of the resilient element (25) so that the first winding shaft (17, 35) can be moved by the resilient force of the resilient element (25) from the intermediate position into the starting position.

9. Aircraft passenger seat (2) according to one of the preceding claims, characterized in that the seat face element (32) is releasably connected to the winding element (16, 34).

10. Seat row (1) having an aircraft passenger seat (2) according to one of the preceding claims.

11. Aircraft having an aircraft passenger seat (2) according to one of Claims 1 to 9 or a seat row (1) according to Claim 10.