Passenger seat device

Abstract

The invention relates to a passenger seat device, comprising: a mounting unit (12a; 12b; 12b; 12c, 12c; 12 d; 12e, 12e; 12f), the mounting unit (12a; 12b; 12b; 12c, 12c; 12 d; 12e, 12e; 12f) is provided for mounting on the cabin floor; the backrest (34a; 34a, 34b; 34c, 34c; 34d, 34d; 34e; 34e; 34f) in the housing; and a support device (42a; 42b; 42c; 42c; 42d; 42d; 42e; 42e; 42f), the bearing device (42a; 42b; 42c; 42c; 42d; 42d; 42e; 42e; 42f) is arranged to place the backrest (34a; 34a, 34b; 34c, 34c; 34d, 34d; 34e; 34e; 34f) relative to the mounting unit (12a; 12b; 12b; 12c, 12c; 12 d; 12e, 12e; 12f) is pivotally supported between an upright seating position and a comfort position, in which the backrest (34a; 34a, 34b; 34c, 34c; 34d, 34d; 34e; 34e; 34f) comprises a pivotable backrest element (36a; 36b; 36b; 36c, 36c; 36d, 36d; 36e; 36e; 36f) of the method. It is proposed that the passenger seat device has at least one reset module (56a; 56b; 56b; 56c; 56c; 56d; 56d; 56e; 56e; 56f), the reset module (56a; 56b; 56b; 56c; 56c; 56d; 56d; 56e; 56e; 56f) is provided at least for providing a support for supporting the backrest (34a; 34a, 34b; 34c, 34c; 34d, 34d; 34e; 34e; 34f) from a comfortable position to an upright seat position, and for this purpose comprises at least one leaf spring element (58a; 58b; 58b; 58c; 58c; 58d, 58d; 58e; 58e; 58f) in the housing.

Description

Field of the Invention

[0001] The present invention relates to a passenger seat device according to the preamble of claim 1. Background Art

[0002] A passenger seat device has been proposed, which has: a mounting unit configured to be mounted on the bottom of the cabin; a backrest; and a support device configured to pivotally support the backrest relative to the mounting unit between an upright seat position and a comfort position, wherein the backrest includes a pivotable backrest element. Summary of the Invention

[0003] The object of the present invention is in particular to provide a universal device for passengers with improved characteristics in terms of compactness and advantageously large leg freedom. According to the present invention, this object is achieved by the features of claim 1, and advantageous designs and improvements of the present invention can be obtained from the dependent claims.

[0004] The present invention relates to a passenger seat device, which has: a mounting unit configured to be mounted on the bottom of the cabin; a backrest; and a support device configured to pivotally support the backrest relative to the mounting unit between an upright seat position and a comfort position, wherein the backrest includes a pivotable backrest element.

[0005] It is proposed that the passenger seat device has at least one reset module which is at least provided for providing a reset force for resetting the backrest from a comfortable position to an upright seat position and which includes at least one leaf spring element for this purpose. The "passenger seat device" should preferably be understood as such a device which forms at least a part of the passenger seat and / or the entire passenger seat. Preferably, the passenger seat device is configured as an aircraft seat device. The "passenger seat" should preferably in particular be understood as such a seat which is provided for forming a seat area for a passenger and which is arranged in a means of transportation for this purpose. Preferably, the passenger seat is configured as an aircraft seat. In principle, it is also conceivable that the passenger seat is configured as a train seat. In principle, it is also conceivable that the passenger seat is configured as a seat for other means of transportation. The passenger seat is preferably configured as part of a row of passenger seats arranged side by side. The passenger seat preferably includes: at least one seat bottom which forms a seat area for the passenger; and a backrest which provides a backrest resting surface on which a passenger sitting on the passenger seat can support his back. Here, the "seat bottom" should in particular be understood as a part of the passenger seat which provides a seat area on which the passenger can sit, where, here, the seat bottom preferably has at least one base body and a cushioning element arranged on the base body. In addition, the passenger seat has a mounting unit by means of which the passenger seat stands upright on a floor, in particular an aircraft cabin floor, and other components of the passenger seat, such as the seat bottom and the backrest, are attached to the mounting unit. The "mounting unit" should preferably be understood as the basic structure of the passenger seat which forms the load-bearing structure of the passenger seat. The passenger seat is attached to an upright plane, namely in particular the aircraft cabin floor, by means of the mounting unit. The mounting unit preferably has at least two seat legs and at least one transverse element which is coupled to the seat legs. The transverse element forms a load-bearing tube. Preferably, the mounting unit has two transverse elements, namely a front transverse element and a rear transverse element. The mounting unit is preferably coupled to the floor by means of a plurality of fittings, preferably to corresponding fastening rails in the floor. The mounting unit forms the load-bearing framework of the passenger seat, preferably the entire row of passenger seats.

[0006] The "support device" should be understood as such a module by means of which the backrest, in particular a pivotable backrest element, is pivotably supported on a certain unit, for example in particular the mounting unit. The support device can preferably be formed by a support bolt. In principle, it is also conceivable that the support device is formed by a hinge or other bearing mechanism by means of which the backrest, in particular the pivotable backrest element, is pivotably supported. The support device forms a rotation axis about which the backrest, in particular the pivotable backrest element, can pivot.

[0007] "The backrest is pivotable" shall be understood to mean that at least one pivotable backrest element of the backrest can pivot relative to the mounting structure, i.e., the mounting unit. The "pivotable backrest element" shall preferably be understood as such a backrest element that constitutes at least a part, preferably a major part, of the backrest surface of the backrest, and that is pivotally supported relative to the mounting unit to form a comfort position and an upright seat position. The pivotable backrest element is pivotally supported relative to the mounting unit to form a comfort position and an upright seat position. The pivotable backrest element has a load-bearing infrastructure and forms the backrest surface in its inner region. Preferably, the pivotable backrest element has a backrest frame and a covering or shell element connected to the backrest frame, and the shell element forms the backrest surface. In principle, it is also conceivable that the pivotable backrest element is formed by a sandwich member. Here, it is conceivable that the pivotable backrest element does not have a backrest frame.

[0008] The pivotable backrest element is preferably pivotally attached to the mounting unit of the passenger seat. The pivotable backrest element is preferably attached to a seat structure element of the passenger seat. The "seat structure element" shall preferably be understood as a part of the load-bearing structure of the passenger seat to which other components of the passenger seat, such as the backrest, backrest element or armrest, can be fastened. The seat structure element is preferably configured as a seat divider. The seat structure element configured as a seat divider is preferably rigidly connected to at least one lateral element, preferably two lateral elements, of the mounting unit. The seat structure element configured as a seat divider preferably extends substantially horizontally from the front lateral element into the region behind the rear lateral element. In the region behind the rear lateral element, the seat structure element configured as a seat divider preferably extends away from the upright plane in a substantially vertical direction to the height of the armrest. In principle, it is also conceivable that the seat structure element is integrally formed with a part of the seat shell, such as with the lower backrest element. Here, the integrally formed seat structure element can be formed, for example, by the side region of the seat shell.

[0009] The seat structure elements preferably each have a support position for supporting the backrest, in particular the pivotable backrest element. The "support position" shall preferably be understood as an attachment point through which a component, such as a backrest element, can be firmly attached. Through the support position, the component can preferably be attached not only rigidly but also movably. Preferably, the support position is arranged to attach another component, such as in particular a backrest element, movably, preferably pivotally, to the component constituting the support position. The bearing element, in particular the support bolt, of the support device for supporting the pivotable backrest element is preferably attached to the support position.

[0010] The "erect seat position" should be understood as the maximum erect seat position of the passenger seat, at which the passenger seat has its maximum erect seat position. If the passenger seat is configured as an aircraft seat, the erect seat position is preferably configured as a seat position that must be occupied for safety reasons, especially during takeoff, landing, and turbulence. Here, the erect seat position is configured as the so-called TTL position (Taxi, Takeoff, Landing). In the erect seat position, the backrest, especially the movably supported backrest element, and the seat bottom of the passenger seat are substantially perpendicular to each other, preferably at an angle between 95 degrees and 115 degrees. The "comfortable position" should be understood in particular as a reclined seat position of the passenger seat, at which at least the backrest, especially the pivotable backrest element, reclines backward against the seat direction of the passenger seat, so that a passenger sitting on the passenger seat can obtain a comfortable reclined seat position. In principle, it is also conceivable that in the comfortable position, in addition to the pivotable backrest element, the seat bottom is also inclined differently from the erect seat position of the passenger seat. In the comfortable position, the backrest, especially the pivotable backrest element, and the seat bottom can especially have different angles, especially advantageously larger angles with respect to each other, compared to the erect seat position (TTL position). In the comfortable position, the backrest, especially the pivotable backrest element, pivots backward by at least 3 degrees, preferably at least 5 degrees, and particularly preferably more than 8 degrees from the maximum erect seat position.

[0011] The "reset module" should preferably be understood as a module that is configured to apply a reset force for resetting the backrest, in particular a movably supported backrest element, to move the backrest, in particular the backrest element, from a certain position, in particular a comfort position, to an upright seat position. To this end, the reset module preferably has an element that provides a force for adjusting the backrest, in particular a pivotable backrest element. The element for providing the reset force is configured as a leaf spring element. The reset module has a locking unit that is configured to lock or unlock the reset module itself and / or the pivotable backrest element. The locking unit has a locked state and an unlocked state. In its locked state, the locking unit locks the reset module and / or the pivotable backrest element, and the reset module cannot apply a reset force to the pivotable backrest element. In its unlocked state, the reset module is unlocked by the locking unit and can apply a reset force to the backrest, in particular the pivotable backrest element, in order to adjust the backrest to its upright seat position. The locking unit preferably has at least one locking element that mechanically locks the reset module itself and / or the pivotable backrest element. The locking element is preferably configured as a form-fitting element and / or a force-fitting element. The locking element can be adjusted between a locked position and an unlocked position. Preferably, the locking element can be adjusted between its locked position and its unlocked position by means of a mechanical adjustment element such as a Bowden cable. In principle, it is also conceivable that the locking element can be adjusted between its locked position and its unlocked position by means of an electric actuator, such as an electromagnetic actuator. For example, it is also conceivable that the locking element is configured as part of an electric actuator, in particular an electromechanical actuator. Thus, it is conceivable that the reset module and / or the pivotable backrest element can be electrically or electronically locked or unlocked by means of the locking unit. The "leaf spring element" should preferably be understood as an elongated spring element that is configured to provide a spring force in a covered state, the spring force being substantially orthogonal to the main extension direction of the leaf spring element. "Configured" should in particular be understood as being specifically designed and / or equipped. Configuring an object to a specific function should in particular be understood as the object performing and / or implementing the specific function in at least one application state and / or operating state.

[0012] The passenger seat is configured as a seat with purely mechanical adjustment. In particular, the adjustment of the backrest, in particular the pivotable backrest element, is effected only by the adjustment force applied by the passenger and / or the force of a spring element. The passenger seat preferably does not have electromechanical actuators by means of which an electrical adjustment of the passenger seat can be effected, in particular an electrical adjustment of the passenger seat, in particular the backrest and / or the seat bottom, between the upright seat position and the comfort position. The passenger seat is preferably not configured as a business seat or a first-class seat with electronic passenger seat adjustment.

[0013] According to the design solution of the present invention, it is advantageously possible to provide a particularly compact passenger seat device, in which a reset module is particularly advantageously configured. Particularly advantageously, a passenger seat can be provided according to the design solution of the present invention, which provides particularly advantageous leg freedom for a passenger, especially for a passenger sitting behind the passenger seat, because the reset module can be configured particularly space-saving. Thereby, the backrest can be configured particularly narrow, especially in the knee area, and has particularly advantageous large leg freedom.

[0014] Furthermore, it is proposed that the pivotable backrest element is pivotally connected to the mounting unit by means of a support device, wherein the leaf spring element is functionally arranged between the pivotable backrest element and the mounting unit. "Functionally arranged between two elements" should preferably be understood as that the leaf spring element is directly or indirectly supported on the mounting unit on one side and directly or indirectly supported on the pivotable backrest element on the second side and is thereby arranged such that the spring force acts between the mounting unit and the pivotable backrest element. The leaf spring element is attached to the pivotable backrest element at a first end. The leaf spring element is attached to the mounting unit at a second end. "Attached" should preferably be understood as optionally a rigid connection or abutted. The leaf spring element can preferably be directly or indirectly connected to the pivotable backrest element or the mounting unit. Preferably, the reset module for attaching the leaf spring element to the pivotable backrest element has a first fastening unit. Preferably, the reset module for attaching the leaf spring element to the mounting unit has a second fastening unit. Preferably, optionally, the first fastening unit or the second fastening unit is configured as a floating bearing, through which the leaf spring element can perform relative movement at least in one direction relative to the pivotable backrest element or the mounting unit. In principle, it is also conceivable that both fastening units are configured as floating bearings. Thereby, the backrest can be particularly advantageously configured.

[0015] Furthermore, it is proposed that the leaf spring element is at least partially integrated into the pivotable backrest element. "At least partially integrated" should preferably be understood as that the leaf spring element is rigidly connected to at least one sub-region of the pivotable backrest element. Here, the leaf spring element can only be connected to the pivotable backrest element, or can also form part of the load-bearing structure of the pivotable backrest element. Thereby, the leaf spring element can be particularly advantageously and space-savingly constructed.

[0016] Furthermore, it is proposed that the leaf spring element is at least partially formed integrally with the pivotable backrest element. "Integrally" should be understood in particular as a material-locking connection, for example by means of a welding process, a gluing process, an injection molding process and / or other processes considered reasonable by a person skilled in the art, and / or advantageously formed as one part, for example by means of casting manufacturing and / or by means of single-component or multi-component injection molding methods and advantageously by means of the use of a single blank. "The leaf spring element is at least partially formed integrally" should preferably be understood as meaning that at least one sub-region of the leaf spring element is formed by the pivotable backrest element. Thereby, the leaf spring element can be integrated particularly easily and space-savingly into the passenger seat device.

[0017] Furthermore, it is proposed that the backrest has elastic ribs extending laterally outwards from the middle region in each case at least in the lower region, which elastic ribs are arranged to deflect in a spring-back manner. The elastic ribs are preferably formed as part of the pivotable backrest element of the backrest. Here, the ribs are preferably at least partially formed integrally with the pivotable backrest element. In principle, it is also conceivable that the rib elements are each formed as separate elements, which are interchangeably mounted on the base body of the pivotable backrest element. In principle, it is also conceivable that the ribs are formed by a rigid lower backrest element. Furthermore, it is also conceivable that the elastic ribs are formed as part of a separate component connected to the backrest, in particular a shell element. Here, the elastic ribs can optionally be formed as an integrally formed element integrated with the respective component or as an interchangeably mountable element. Thereby, the backrest can be formed particularly easily and comfortably.

[0018] Furthermore, it is proposed that the pivotable backrest element includes a shell element, which shell element forms the vertically continuous middle region and the laterally outwardly extending ribs substantially integrally in the lower region. "Shell element" should preferably be understood as a flat element made of fiber-reinforced plastic. Preferably, the laterally extending ribs are formed entirely integrally with the shell element. In principle, it is also conceivable that at least one sub-region of the laterally extending ribs is formed separately and connected to the shell element in an installation step. Thereby, the pivotable backrest element can be formed particularly advantageously.

[0019] Furthermore, it is proposed that the continuous middle region of the shell element has a receiving region for the leaf spring element or at least partially forms the leaf spring element. "Receiving region" should preferably be understood as a region which forms a receiving part for a certain element, in particular for the leaf spring element, in which the leaf spring element is attached in a force-locking manner, a material-locking manner and / or a form-fitting manner. Thereby, the leaf spring element can be advantageously and easily integrated into the pivotable backrest element.

[0020] Furthermore, it is proposed that the backrest includes a rigid lower backrest element, wherein the leaf spring element is functionally arranged between the lower backrest element and the pivotable backrest element. The "lower backrest element" should preferably be understood as such an element that rigidly constitutes the lower part of the backrest facing the seat bottom. The lower backrest element is preferably formed by a shell element. The lower backrest element is preferably formed by a shell element made of fiber-reinforced plastic. The lower backrest element is preferably configured as a separate element. The lower backrest element is preferably rigidly, i.e., immovably, fastened to the mounting unit. In principle, it is also conceivable that the lower backrest element is integrally formed with the seat shell of the seat bottom. Thereby, a backrest can be provided that particularly advantageously has a high pivot point, so that a backrest that is advantageously narrow in the knee area can be provided in particular.

[0021] Furthermore, it is proposed that the leaf spring element for providing the restoring force is at least partially integrally formed with the lower backrest element. Thereby, the leaf spring element can be advantageously easily formed and integrated into the passenger seat.

[0022] Furthermore, it is proposed that the support device constitutes a pivot axis about which the pivotable backrest element is pivotably supported relative to the lower backrest element, wherein the pivot axis is arranged above the knee area of the backrest. The "knee area" should preferably be understood as the area of the backrest in which the knees of a passenger sitting behind the passenger seat are placed. The knee area is preferably configured as such an area that extends from the lower end of the backrest to an area that is at least 650 mm, particularly preferably 700 mm, above the upright plane. The knee area is preferably configured as the area of the backrest between 400 mm and 700 mm measured from the upright plane, particularly preferably as the area of the backrest between 450 mm and 650 mm measured from the upright plane. Thereby, a particularly advantageous knee area can be provided for a passenger sitting behind the passenger seat.

[0023] In this context, the passenger seat device according to the invention should not be limited to the applications and embodiments described above. In particular, the passenger seat device according to the invention can have a number different from the number of the individual elements, components and units mentioned herein to perform the functional modes described herein. Description of the Drawings

[0024] Further advantages result from the following description of the drawings. Six embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain many combinations of features. Those skilled in the art will also appropriately consider these features individually and summarize them into meaningful additional combinations. In the drawings:

[0025] Figure 1 A schematic view of a row of passenger seats having a passenger seat device according to a first embodiment is shown, the passenger seat device having a backrest and a reset module, the backrest having an upper backrest pivot point, and the reset module having a leaf spring element;

[0026] Figure 2 Shows a schematic rear view of a row of passenger seats with a reset module and a leaf spring element;

[0027] Figure 3 Shows a schematic side view of two rows of passenger seats and a pivotable backrest element in an upright seat position and a comfort position;

[0028] Figure 4 Shows a detailed view of attaching the leaf spring element by means of a fastening unit;

[0029] Figure 5 Shows a schematic view of a row of passenger seats with a passenger seat device in a second embodiment, the passenger seat device having a backrest and a reset module, the backrest having an upper backrest pivot point, the backrest having a cover, and the reset module having a leaf spring element;

[0030] Figure 6 Shows a schematic rear view of a passenger seat with a covered backrest element and a reset module, the covered backrest element having a cover, and the reset module having a leaf spring element;

[0031] Figure 7 Shows a schematic view of a pivotable backrest element in a third embodiment of a passenger seat device, the pivotable backrest element forming a spring element, and the spring element being configured as a leaf spring element;

[0032] Figure 8 Shows a schematic view of a passenger seat device in a fourth embodiment, the passenger seat device having a reset module, the reset module having a leaf spring element, and the leaf spring element being formed by a lower backrest element;

[0033] Figure 9 Shows a schematic view of a passenger seat device in a fifth embodiment, the passenger seat device having a pivotable backrest and a reset module, the pivotable backrest having a lower backrest pivot point, and the reset module having a leaf spring element;

[0034] Figure 10 Shows a schematic view of a passenger seat device in a sixth embodiment, the passenger seat device having a seat shell element and a reset module, the seat shell element forming a seat bottom and a lower backrest element, and the reset module having a leaf spring element. Detailed Description

[0035] Figures 1 to 4A passenger seat device in a first embodiment is shown. Here, the passenger seat device is a part of a passenger seat 10a. The passenger seat 10a is configured as an aircraft seat. The passenger seat 10a stands upright in the aircraft cabin of the aircraft in the installed state. The passenger seat 10a is arranged to be firmly mounted on the cabin bottom of the aircraft cabin in the installed state. The passenger seat device has a mounting unit 12a. With the aid of the mounting unit 12a, the passenger seat 10a can stand upright on the cabin bottom of the aircraft cabin. The cabin bottom constitutes an upright plane. The passenger seat 10a is configured as a part of a passenger seat row 14a. The passenger seat 10a is preferably configured as a part of a passenger seat row 14a including more than one passenger seat 10a. A passenger seat row 14a with two passenger seats 10a, 16a is exemplarily shown in the accompanying drawings. The passenger seat row 14a exemplarily shown has a second passenger seat 16a. Another passenger seat 16a is arranged adjacent to the first passenger seat 10a. The second passenger seat 16a is preferably configured identically to the first passenger seat 10a, so that only one passenger seat 10a is described in detail below. In principle, it is also conceivable that the passenger seat row 14a has three or more passenger seats 10a, 16a. Here, the mounting unit 12a is configured as a common mounting unit 12a for the passenger seats 10a, 16a of the passenger seat row 14a. The mounting unit 12a comprises two seat feet 18a, 20a. The seat feet 18a, 20a are each coupled to fastening rails via accessories not shown in detail, which are firmly connected to the cabin bottom. The accessories can be firmly stopped in the fastening rails.

[0036] The mounting unit 12a has two lateral carriers 22a, 24a. The lateral carriers 22a, 24a are configured as carrier pipes. The front lateral carrier 22a is arranged in the front region of the passenger seat 10a. The rear lateral carrier 24a is arranged in the rear region of the passenger seat 10a. The lateral carriers 22a, 24a extend in the lateral direction of the passenger seat 10a. The lateral carriers 22a, 24a extend at least substantially through the entire lateral extent of all the passenger seats 10a of the passenger seat row 14a. The passenger seat device has two seat structural elements 26a, 28a. The two seat structural elements 26a, 28a are each arranged on one side of the seat region 30a of the passenger seat device. The two seat structural elements 26a, 28a are each arranged at the side of the seat region 30a formed by the passenger seat 10a. The seat structural elements 26a, 28a are configured as seat dividers. The seat structural elements 26a, 28a are arranged on the lateral carriers 22a, 24a. The seat structural elements 26a, 28a are fastened to the lateral carriers 22a, 24a spaced apart from each other in the lateral direction. The seat structural elements 26a, 28a are connected to the lateral carriers 22a, 24a in a positively and / or form-fitting manner. The seat structural elements 26a, 28a are configured as substantially L-shaped. The seat structural elements 26a, 28a each have a first sub-region that is substantially horizontally oriented in the installed state. The seat structural elements 26a, 28a each have a second sub-region that is substantially vertically oriented in the installed state. The second sub-region of the seat structural elements 26a, 28a is arranged in the rear region of the passenger seat 10a. The second sub-region of the seat structural elements 26a, 28a extends to the rear ends of the seat structural elements 26a, 28a. The second sub-region of the seat structural elements 26a, 28a forms the rear region of the seat structural elements 26a, 28a. Thus, the seat structural elements 26a, 28a extend upward away from the mounting unit 12a, in particular from the upright plane, in their rear regions. The seat structural elements 26a, 28a extend upward to a substantially armrest height X in their rear regions. The seat structural elements 26a, 28a extend to the armrest height X of the passenger seat 10a. The armrest height X is 650 mm. In principle, it can preferably be envisaged that the armrest height X lies in the region between 500 mm and 700 mm.

[0037] Seat structure elements 26a, 28a, configured as seat dividers, are provided to fasten different components of the respective passenger seats 10a, 16a to the passenger seats 10a, 16a, as described in at least partial detail below. In principle, it is also conceivable that the mounting unit 12a does not have seat structure elements 26a, 28a or has seat structure elements 26a, 28a with different implementations, and the respective components of the passenger seats 10a, 16a are attached to the mounting unit 12a in a different manner.

[0038] The passenger seat device includes a seat bottom 32a. The seat bottom 32a forms a seat area 30a. The seat bottom 32a forms the seat surface of the passenger seat 10a. The seat bottom 32a has a base body and a cushioning element firmly arranged on the base body. The cushioning element forms the seat surface of the passenger seat 10a. The seat bottom 32a is attached to the mounting unit 12a. The seat bottom 32a is attached in particular to the lateral carriers 22a, 24a. The seat bottom 32a is coupled to the backrest 34a. The seat bottom 32a is directly coupled to the backrest 34a.

[0039] The passenger seat device includes a backrest 34a. Here, the backrest 34a is provided so that a person sitting on the passenger seat 10a can support their back on the backrest 34a, and the passenger seat device is part of the passenger seat 10a. The backrest 34a preferably has a cushioning portion not shown in detail. The backrest 34a forms a backrest support surface. The backrest 34a is arranged at the rear end of the seat bottom 32a. The backrest 34a is pivotally arranged relative to the mounting unit 12a. The backrest 34a is attached to the seat structure elements 26a, 28a. Here, the passenger seat 10a forms a seat direction. The seat direction is defined as the direction in which a passenger sits on the passenger seat 10a. The seat direction is orthogonal to the backrest surface of the backrest 34a and extends parallel to the upright plane in the direction of the front end of the seat bottom 32a.

[0040] The backrest 34a is pivotably configured. The backrest 34a is arranged to pivot between an upright seat position and a comfort position. The backrest 34a is arranged to pivot relative to the mounting unit 12a. The backrest 34a can pivot relative to the seat structural elements 26a, 28a. The backrest 34a has a pivotable backrest element 36a. The pivotable backrest element 36a is pivotably supported on the mounting unit 12a. The pivotable backrest element 36a is pivotably attached to the seat structural elements 26a, 28a. The seat structural elements 26a, 28a each have support positions 38a, 40a for supporting the backrest 34a. The support positions 38a, 40a are arranged to support the pivotable backrest element 36a thereon. The pivotable backrest element 36a is pivotably attached to the seat structural elements 26a, 28a via the support positions 38a, 40a. The support positions 38a, 40a are configured as bearing receptacles. The support positions 38a, 40a define the position, in particular the height, of the axis of rotation 44a about which the backrest 34a, in particular the pivotable backrest element 36a, is pivotably supported. In Figure 3 , the backrest 34a is schematically shown in dashed lines in the comfort position. The pivotable backrest element 36a is shown in dashed lines in Figure 3 as the pivotable backrest element 36a' in the comfort position. The pivotable backrest element 36a' pivots approximately 10 degrees backward from the upright seat position against the seat direction to its comfort position. In principle, it is also conceivable that the pivotable backrest element 36a' in the comfort position only pivots 5 degrees or 8 degrees backward from the upright seat position.

[0041] The passenger seat device has a support device 42a. The support device 42a is arranged to pivotally support the backrest 34a between an upright seat position and a comfort position. The support device 42a is arranged to pivotally support the pivotable backrest element 36a between an upright seat position and a comfort position. The support device 42a forms a rotation axis 44a. The pivotable backrest element 36a can be pivoted about the rotation axis 44a by means of the support device 42a. The support device 42a has two support bolts 46a, 48a. The support bolts 46a, 48a form the rotation axis 44a. Each of the support bolts 46a, 48a is connected to one of the support positions 38a, 40a of one of the seat structure elements 26a, 28a. The support bolts 46a, 48a are preferably non-rotatably arranged at the respective support positions 38a, 40a. The pivotable backrest element 36a is rotatably supported on the support bolts 46a, 48a. Preferably, the pivotable backrest element 36a is pivotally supported on the support bolts 46a, 48a by means of a sliding bearing. In principle, it is also conceivable that the pivotable backrest element 36a is rotatably supported on the support bolts 46a, 48a by means of a rolling bearing. In principle, it is also conceivable that the support bolts 46a, 48a are rotatably attached to the respective support positions 38a, 40a of the seat structure elements 26a, 28a by means of suitable bearings.

[0042] The pivotable backrest element 36a has a backrest frame 60a. The backrest frame 60a forms the load-bearing structure of the pivotable backrest element 36a. The backrest frame 60a is configured as a swivel frame. The backrest frame 60a is preferably configured as substantially U-shaped. The backrest frame 60a has two lateral frame elements and an upper frame element which connects the two lateral frame elements at the upper end of the backrest frame 60a. At the lower end, the backrest frame 60a is preferably open. The lower end of the backrest frame 60a forms the lower end of the pivotable backrest element 36a. Each of the support bolts 46a, 48a is attached to the backrest frame 60a of the pivotable backrest element 36a on the facing lateral frame elements at the lower end of the backrest frame 60a.

[0043] The pivotable backrest element 36a has a shell element 62a. The shell element 62a is configured as a plate-shaped element. The shell element 62a is formed of fiber-reinforced plastic. The shell element 62a is formed of GFK or CFK, for example. The shell element 62a is arranged to form the backrest support surface of the pivotable backrest element 36a. The shell element 62a is arranged in the interior region of the pivotable backrest element 36a that is tensioned by the backrest frame 60a. The shell element 62a is firmly connected to the backrest frame 60a of the pivotable backrest element 36a. The shell element 62a is firmly connected to the lateral frame elements of the backrest frame 60a at least in a sub-region. Preferably, the shell element 62a is attached to the upper frame element of the backrest frame 60a at its upper end. The shell element 62a preferably forms the backrest contour of the pivotable backrest element 36a. The shell element 62a is arranged such that a cushioning element of the backrest 34a is placed thereon.

[0044] The backrest 34a is configured as a backrest with a high backrest pivot point. The backrest pivot point is formed by the axis of rotation 44a of the support device 42a. The backrest pivot point, i.e., the axis of rotation 44a of the support device 42a, is arranged above the knee area 50a of the passenger seat 10a. The knee area 50a of the passenger seat 10a extends from the cabin floor to a height of 650 mm. The knee area 50a is arranged as an area in which a passenger sitting behind the passenger seat 10a can place their knees.

[0045] To form the high backrest pivot point, the seat structure elements 26a, 28a form their support positions 38a, 40a for supporting the backrest 34a in a high region. The seat structure elements 26a, 28a each form their support positions 38a, 40a at their upper ends. The seat structure elements 26a, 28a form their support positions 38a, 40a at the upper ends of their second sub-region facing away from the upright plane. The support positions 38a, 40a of the seat structure elements 26a, 28a are arranged above the knee area 50a. The support positions 38a, 40a of the seat structure elements 26a, 28a are arranged at the armrest height X. The support positions 38a, 40a for supporting the pivotable backrest element 36a define the axis of rotation 44a arranged above the knee area 50a of the backrest 34a.

[0046] The pivotable backrest element 36a forms the backrest 34a above the support positions 38a, 40a of the seat structure elements 26a, 28a. The pivotable backrest element 36a only forms the upper region of the backrest 34a. The pivotable backrest element 36a is configured as an upper backrest element. The pivotable backrest element 36a forms the backrest support surface of the backrest 34a in the region above the armrest height X. The pivotable backrest element 36a is preferably arranged substantially only in the region above the armrest height X. Only the region for attaching the backrest element 36a to the seat structure elements 26a, 28a extends below the armrest height X.

[0047] The backrest 34a has a lower backrest element 52a. The lower backrest element 52a is rigidly constructed. The lower backrest element 52a is preferably immovably constructed. The lower backrest element 52a constitutes the lower region of the backrest 34a. The lower backrest element 52a constitutes a backrest support surface in the lower region of the backrest 34a. The lower backrest element 52a is firmly fastened to the seat structure elements 26a, 28a. The lower backrest element 52a extends substantially between the height of the transverse carriers 22a, 24a of the mounting unit 12a and the lower end of the pivotable backrest element 36a. The lower backrest element 52a preferably extends to just below the armrest height X. The lower backrest element 52b extends from the height of the transverse carriers 22a, 24a to a height of about 450mm to 700mm measured from the upright plane. The lower backrest element 52a preferably extends to a height of 600mm measured from the upright plane.

[0048] The lower backrest element 52a is formed by a shell element. The lower backrest element 52a is formed by a shell made of fiber reinforced plastic. For example, it is conceivable that the lower backrest element 52a is composed of a GFK shell or a CFK shell. The lower backrest element 52a preferably has an easily bendable shape. The lower backrest element 52a is laterally connected to one of the seat structure elements 26a, 28a by every two fastening elements 54a. In principle, it is also conceivable that the lower backrest element 52a is at least partially formed in one piece with the seat bottom 32a, especially the seat shell. In principle, it is also conceivable that the lower backrest element 52a is at least partially or completely formed by a covering.

[0049] The passenger seat device has a reset module 56a. The reset module 56a is arranged to reset the backrest 34a from the comfort position to the upright seat position. The reset module 56a is arranged to reset the backrest 34a from its pivoted seat position to the upright seat position. The reset module 56a is arranged to reset the pivotable backrest element 36a. The reset module 56a is arranged to provide a reset force to reset the backrest 34a, in particular to reset the pivotable backrest element 36a. The reset module 56a is arranged to apply a reset force to the pivotable backrest element 36a to reset the backrest 34a. The reset module 56a is at least substantially arranged in the area above the supporting positions 38a, 40a of the seat structure elements 26a, 28a. The reset module 56a is at least substantially arranged above the armrest height X, i.e., on the side away from the upright plane. The reset module 56a is at least mostly arranged above the knee area 50a of the backrest 34a. By such an arrangement of the restoring module 56a, the knee region 50a of the backrest 34a can preferably be substantially free of components of the restoring module 56a. In particular, the larger components of the restoring module 56a can advantageously be arranged above the armrest height X and thus outside the knee region 50a of the backrest 34a.

[0050] The reset module 56a has a leaf spring element 58a to provide a reset force. In principle, it is also conceivable that the reset module 56a has a plurality of leaf spring elements 58a to provide a reset force. The leaf spring element 58a is arranged to apply a spring force to the pivotable backrest element 36a to pivot the pivotable backrest element 36a in the direction of its upright seat position. The spring force of the leaf spring element 58a forms the reset force of the reset module 56a. The spring element 58a is functionally arranged between the pivotable backrest element 36a and the mounting unit 12a. The leaf spring element 58a is arranged to support on the mounting unit 12a with a first side. The leaf spring element 58a is arranged to support on the backrest 34a, in particular on the pivotable backrest element 36a, with a second side. Thereby, the leaf spring element 58a can transfer the reset force from the fixedly mounted unit 12a to the pivotable backrest element 36a.

[0051] The leaf spring element 58a is configured as an elongated member. The leaf spring element 58a is functionally arranged between the lower backrest element 52a and the pivotable backrest element 36a. The leaf spring element 58a is attached to the lower backrest element 52a with its first lower end. The leaf spring element 58a supports on the lower backrest element 52a with its lower end. The leaf spring element 58a is attached in the upper region of the lower backrest element 52a. Thus, the leaf spring element 58a partially extends into the region below the axis of rotation 44a, i.e., the armrest height X. The leaf spring element 58a is attached to the pivotable backrest element 36a with its second upper end. The leaf spring element 58a supports on the pivotable backrest element 36a with its second upper end. The leaf spring element 58a preferably extends into the middle region of the pivotable backrest element 52a.

[0052] To attach the leaf spring element 58a to the pivotable backrest element 36a, the reset module 56a has a first fastening unit 64a. By means of the first fastening unit 64a, the leaf spring element 58a is firmly attached to the pivotable backrest element 36a. By means of the first fastening unit 64a, the leaf spring element 58a is rigidly and immovably connected to the pivotable backrest element 36a. In principle, it is also conceivable that the leaf spring element 58a is movably connected to the pivotable backrest element 36a by means of the first fastening unit 64a with at least one degree of freedom. In addition, it is also conceivable that the leaf spring element 58a abuts only with its upper end against the pivotable backrest element 36a. Here, it is conceivable that the leaf spring element 58a slides with its upper end on the pivotable backrest element 36a, in particular on the rear side of the housing element 62a. The pivotable backrest element 36a has a transverse carrier 66a. The transverse carrier 66a is arranged in the region above the support positions 38a, 40a. The transverse carrier 66a is arranged approximately in the middle of the pivotable backrest element 36a when viewed in the vertical direction. The transverse carrier 66a is attached between the lateral frame elements of the backrest frame 60a. The transverse carrier 66a extends between the lateral frame elements of the backrest frame 60a. The transverse carriers 66a are each firmly connected to the respective lateral frame elements of the backrest frame 60a. The transverse carrier 66a is preferably screwed to the lateral frame elements of the backrest frame 60a. In principle, it is also conceivable that the transverse carrier 66a is adhesively bonded to the lateral frame elements of the backrest frame 60a, or is connected in some other way, i.e., in a form-fitting, force-fitting and / or material-fitting manner. The transverse carrier 66a is preferably provided for strengthening the backrest frame 60a, in particular for strengthening the entire pivotable backrest element 36a. Preferably, the transverse carrier 66a can be provided with additional mounting elements to which the backrest 34a is fastened. For example, it is conceivable that a pivotable table element, a cup holder, a tray holder or a high document pocket is attached to the backrest 34, in particular to the pivotable backrest element 36a, on the transverse carrier 66a. The leaf spring element 58a is attached to the transverse carrier 66a to transmit the reset force. The leaf spring element 58a is directly attached to the transverse carrier 66a by means of the fastening unit 64a. By means of the transverse carrier 66a, the reset force provided by the leaf spring element 58a can be evenly transmitted to both sides of the pivotable backrest element 36a.

[0053] To attach the leaf spring element 58a to the lower backrest element 52a, the reset module 56a has a second fastening unit 68a. Through the second fastening unit 68a, the leaf spring element 58a is firmly attached to the lower backrest element 52a. Through the second fastening unit 68a, the leaf spring element 58a is movably attached to the lower backrest element 52a. The second fastening unit 68a has a fastening base 70a. The fastening base 70a is firmly attached to the rear side of the lower backrest element 52a. The fastening base 70a of the second fastening unit 68a has a receiving portion configured to receive the leaf spring element 58a. The leaf spring element 58a is displaceably supported in the receiving portion of the fastening base 70a. The receiving portion of the fastening base 70a constitutes a displacement axis along which the leaf spring element 58a is displaceably supported. The displacement axis is vertically oriented in the installed state. The fastening unit 68a has two fastening elements 72a, 74a that attach the leaf spring element 58a to the fastening base 70a. The fastening elements 72a, 74a are configured as fastening screws. In principle, it is also conceivable that the fastening elements 72a, 74a are configured in a different manner. To attach to the fastening base 70a, the leaf spring element 58a has two through slots 76a, 78a. The fastening elements 72a, 74a are guided through the through slots 76a, 78a to attach the leaf spring element 58a.

[0054] The leaf spring element 58a is at least partially integrated into the pivotable backrest element 36a. The leaf spring element 58a is partially integrated into the housing element 62a of the pivotable backrest element 36a. The leaf spring element 58a is configured to be received in the housing element 62a of the pivotable backrest element 36a. The housing element 62a of the pivotable backrest element 36a has an intermediate region 80a. The intermediate region 80a is centered relative to the lateral direction between the lateral frame elements of the backrest frame 60a. The leaf spring element 58a is at least partially integrated into the intermediate region 80a of the housing element 62a. The housing element 62a has a receiving area 82a for the leaf spring element 58a on its rear side in the intermediate region 80a. The receiving area 82a extends in the intermediate region 80a from the lower end of the housing element 62a to a region below the lateral carrier 66a. In principle, it is also conceivable that the leaf spring element 58a only rests on the rear side of the housing element 62a in the intermediate region 80a. It is also conceivable that the leaf spring element 58a does not contact the housing element 62a in the intermediate region 80a.

[0055] The pivotable backrest element 36a has elastic ribs 84a, 86a extending laterally outwards from the middle area 80a in the lower area. In the embodiment, three elastic ribs 84a, 86a are shown as examples on each side. The elastic ribs 84a, 86a extend from the middle area 80a to the lateral frame elements of the backrest frame 60a. The ribs 84a, 86a arranged adjacently on one side of the middle area 80a are spaced apart from each other in the vertical direction. The elastic ribs 84a, 86a can be elastically deformed independently of each other. The elastic ribs 84a, 86a have a shape that bends forward along the seat direction. The elastic ribs 84a, 86a are preferably formed with the shell element 62a, especially with the middle area 80a one-piece type. In principle, it can also be imagined that the elastic ribs 84a, 86a are at least partially formed separately from the shell element 62a. Here, it is particularly conceivable that ribs 84a, 86a are partially constituted as separate elements, which are connected to the middle area 80a of shell element 62a, especially shell element 62a. Here, it is particularly conceivable that the ribs 84a, 86a constituted separately can be detachably attached to shell element 62a. Thus, when ribs 84a, 86a are damaged, ribs 84a, 86a can be advantageously easily replaced. Preferably, ribs 84a, 86a with different rigidities can be particularly easily arranged at different positions of pivotable backrest element 36a by ribs 84a, 86a constituted detachably. Thus, pivotable backrest element 36a can be constituted particularly easily and differently rigidly in different sub-areas. Preferably, ribs 84a, 86a of different shapes can be easily arranged at different positions of pivotable backrest element 36a by ribs 84a, 86a constituted detachably. As a result, the pivotable backrest element 36 a can be configured particularly easily with different or adaptable ergonomic features.

[0056] The reset module 56a has a locking unit 88a. The locking unit 88a is configured to lock or unlock the reset module 56a. The locking unit 88a is configured to lock the backrest 34a, i.e. the pivotable backrest element 36a, at least in the upright seat position and the comfort position. Preferably, it is also conceivable that the locking unit 88a is configured to lock the pivotable backrest element 36a in additional positions. Here, the additional positions of the pivotable backrest element 36a are in particular configured as pivotable positions that lie between the upright seat position and the comfort position. The locking unit 88a has a locked state and an unlocked state. In its locked state, the locking unit 88a locks the reset module 56a, and the reset module 56a cannot exert a reset force on the pivotable backrest element 36a. In its unlocked state, the locking unit 88a unlocks the reset module 56a, and the reset module 56a can exert a reset force on the pivotable backrest element 36a. The locking unit 88a is configured to lock the pivotable backrest element 36a in its current position in its locked state. In the locked state of the locking unit 88a, the pivotable backrest element 36a is stopped in its current position. In the locked state of the locking unit 88a, the pivotable backrest element 36a is non-pivotable. In the locked state of the locking unit 88a, the pivotable backrest element 36a is preferably firmly fixed relative to the mounting unit 12a. Preferably, the pivotable backrest element 36a is firmly fixed relative to the seat structure elements 26a, 28a in the locked state of the locking unit 88a.

[0057] The locking unit 88a is preferably functionally arranged between one of the pivotable backrest elements 36a, in particular the backrest frame 60a, and the seat structure elements 26a, 28a. In principle, it is also conceivable that the locking unit 88a is functionally arranged between the backrest frame 60a and the two seat structure elements 26a, 28a. The locking unit 88a preferably has at least one locking element. The locking element of the locking unit 88a is preferably arranged to lock the reset module 56a in the locked state of the locking unit 88a. The locking element of the locking unit 88a is preferably arranged to directly lock the pivotable backrest element 36a. The locking element of the locking unit 88a is arranged to lock the pivotable backrest element 36a in a form-fitting manner. The locking element of the locking unit 88a is arranged to engage in a corresponding form-fitting element of the locking unit 88a in a form-fitting manner in the locked state of the locking unit 88a. The locking unit 88a has a corresponding form-fitting element for each stoppable position, i.e., for the upright seat position and the comfort position of the pivotable backrest element 36a. In principle, it is also conceivable that the locking unit 88a is arranged to lock the pivotable backrest element 36a in a force-fitting manner and for this purpose has at least one force-fitting element. In principle, it is also conceivable that the locking unit 88a is arranged to lock the pivotable backrest element 36a in a force-fitting and form-fitting manner. The locking unit 88a has an actuating element 90a by means of which the locking unit 88a can be adjusted from the locked state to the unlocked state. The actuating element 90a is arranged to be actuated by a passenger sitting on the passenger seat 10a. The actuating element 90a is preferably configured as a button. The actuating element 90a is coupled to the locking element of the locking unit 88a by a suitable connecting element, such as in particular a Bowden cable, in order to adjust the locking element between its locked position and its unlocked position.

[0058] The locking unit 88a is arranged above the knee area 50a of the backrest 34a. The locking unit 88a is preferably arranged in the region above the support positions 38a, 40a of the seat structure elements 26a, 28a. The locking unit 88a is preferably arranged substantially, i.e., mostly, above the armrest height X. The locking unit 88a is arranged in the region of the pivotable backrest element 36a. The locking unit 88a is preferably arranged outside the region of the lower backrest element 52a. In particular, the locking element of the locking unit 88a for locking the pivotable backrest element 36a and the correspondingly configured form-fitting element are arranged above the support positions 38a, 40a and the armrest height X. The individual components of the locking unit 88a, such as in particular the actuating element 90a and the Bowden cable, can also be partially arranged below the armrest height X.

[0059] The passenger seat device has two armrests 92a, 94a. The armrests 92a, 94a are part of the passenger seat 10a of the passenger seat row 14a. The armrests 92a, 94a are each arranged at the sides of the seat area 30a of the passenger seat 10a. The armrests 92a, 94a are attached at the armrest height X. The armrests 92a, 94a are attached to the mounting unit 12a at their rear ends at the armrest height X. The armrests 92a, 94a are attached by means of the seat structure elements 26a, 28a. The armrests 92a, 94a are attached to the passenger seat 10a by means of the support positions 38a, 40a of the seat structure elements 26a, 28a configured as seat dividers. The armrests 92a, 94a are attached to the seat structure elements 26a, 28a by means of the support bolts 46a, 48a of the support device 42a of the backrest 34a. The armrests 92a, 94a are attached to the seat structure elements 26a, 28a by means of the same support bolts 46a, 48a as the pivotable backrest element 36a. The armrests 92a, 94a are preferably pivotally attached to the seat structure elements 26a, 28a. The armrests 92a, 94a can pivot about the same axis of rotation 44a as the pivotable backrest element 36a. In principle, it is also conceivable that the armrests 92a, 94a are non-rotatably attached to the seat structure elements 26a, 28a. The actuating element 90a of the locking unit 88a is preferably introduced into one of the armrests 92a, 94a.

[0060] Alternatively, it is also conceivable that the leaf spring element 58a is directly attached to the mounting unit 12a. Here, it is conceivable that the leaf spring element 58a is directly attached to the rear transverse carrier 24a of the mounting unit 12a instead of to the lower backrest element 52a. Here, it is conceivable that the leaf spring element 58a is arranged in the lateral region, directly in the region of one of the laterally arranged seat structure elements 26a, 28a. Thereby, the middle region of the knee area 50a of the backrest 34 can advantageously be configured without the leaf spring element 58a.

[0061] In Figures 5 to 10 five further embodiments of the invention are shown. The following description and the drawings are basically limited to the differences between the embodiments, where, with regard to components having the same name, especially with regard to components having the same reference signs, reference can in principle also be made to the drawings and / or the description of other embodiments, especially Figures 1 to 4 . In order to distinguish the embodiments, the letter a is appended to the reference signs of the embodiments in Figures 1 to 4 . In the embodiments of Figures 5 to 10 , the letter a is replaced by the letters b to f.

[0062] Figure 5 and Figure 6A second embodiment of a passenger seat device according to the present invention is shown. Here, the passenger seat device is part of a passenger seat 10b. The passenger seat 10b stands upright in the aircraft cabin of an aircraft in the installed state. The passenger seat device has a mounting unit 12b. With the help of the mounting unit 12b, the passenger seat 10b can stand upright on the cabin floor of the aircraft cabin. The passenger seat 10b is configured as a part of a passenger seat row 14b. The passenger seat row 14b shown exemplarily has a second passenger seat 16b. Here, the mounting unit 12b is configured as a common mounting unit for the passenger seats 10b, 16b of the passenger seat row 14b. The mounting unit 12b includes two seat feet 18b, 20b. The mounting unit 12b has two transverse carriers 22b, 24b.

[0063] The passenger seat device has two seat structure elements 26b, 28b. The two seat structure elements 26b, 28b are arranged on one side of the seat area 30b of the passenger seat device. The two seat structure elements 26b, 28b are arranged on the side of the seat area 30b formed by the passenger seat 10b. The seat structure elements 26b, 28b are configured as seat partitions. The seat structure elements 26b, 28b are arranged on the transverse carriers 22b, 24b. The seat structure elements 26b, 28b are configured as basically L-shaped. Therefore, the seat structure elements 26b, 28b extend upwards away from the mounting unit 12b, especially the upright plane in its rear area. The seat structure elements 26b, 28b extend upwards in its rear area to basically the armrest height X. The seat structure elements 26b, 28b extend to the armrest height X of the passenger seat 10b.

[0064] The passenger seat device comprises a backrest 34b. The backrest 34b is arranged so that a person sitting on the passenger seat 10b can support his back on the backrest 34b, and the passenger seat device is a part of the passenger seat 10b. The backrest 34b is arranged pivotably relative to the mounting unit 12b. The backrest 34b is attached to the seat structure elements 26b, 28b. The backrest 34b is arranged to pivot between the upright seat position and the comfort position. The backrest 34b has a pivotable backrest element 36b. The pivotable backrest element 36b is pivotably supported on the mounting unit 12b. The pivotable backrest element 36b is pivotably attached to the seat structure elements 26b, 28b. The seat structure elements 26b, 28b each have a supporting position 38b, 40b for supporting the backrest 34b. The supporting position 38b, 40b is arranged to support the pivotable backrest element 36b thereon.

[0065] The passenger seat device has a support device 42b. The support device 42b is arranged to pivotally support the backrest 34b between an upright seat position and a comfort position. The support device 42b is arranged to pivotally support the pivotable backrest element 36b between an upright seat position and a comfort position. The support device 42b forms a rotation axis 44b. The pivotable backrest element 36b can pivot about the rotation axis 44b by means of the support device 42b. The support device 42b has two support bolts 46b, 48b. The support bolts 46b, 48b form the rotation axis 44b. The support bolts 46b, 48b are each connected to one of the support positions 38b, 40b of one of the seat structure elements 26b, 28b.

[0066] The pivotable backrest element 36b has a backrest frame 60b. The backrest frame 60b forms the load-bearing structure of the pivotable backrest element 36b. The backrest frame 60b is configured as a swivel frame. The backrest frame 60b is preferably configured as substantially U-shaped. The backrest frame 60b has two lateral frame elements and an upper frame element that connects the two lateral frame elements at the upper end of the backrest frame 60b. At the lower end, the backrest frame 60b is preferably open. The lower end of the backrest frame 60b forms the lower end of the pivotable backrest element 36b. The support bolts 46b, 48b are each attached to the pivotable backrest element 36b on the facing lateral frame elements at the lower end of the backrest frame 60b.

[0067] The backrest 34b is configured as a backrest with a high backrest pivot point. The backrest pivot point, i.e., the rotation axis 44b of the support device 42b, is arranged above the knee area 50b of the passenger seat 10b. To form the high backrest pivot point, the seat structure elements 26b, 28b form their support positions 38b, 40b for supporting the backrest 34b in the high area. The support positions 38b, 40b of the seat structure elements 26b, 28b are arranged above the knee area 50b. The support positions 38b, 40b of the seat structure elements 26b, 28b are arranged at the armrest height X.

[0068] Different from the first embodiment, the pivotable backrest element 36b has a cover 100b. The cover 100b is tensioned on the backrest frame 60b. The cover 100b is formed by a fabric tensioned between the lateral frame elements of the backrest frame 60b. In principle, it is conceivable that the cover 100b is also attached to the upper frame element of the backrest frame 60b. The cover 100b extends from the lower end of the backrest frame 60b into the upper end region of the backrest frame 60b.

[0069] The backrest 34b has a lower backrest element 52b. The lower backrest element 52b is rigidly configured. The lower backrest element 52b is preferably configured to be immovable. The lower backrest element 52b forms the lower region of the backrest 34b. The lower backrest element 52b forms a backrest support surface in the lower region of the backrest 34b. The lower backrest element 52b is firmly fastened to the seat structure elements 26b, 28b. The lower backrest element 52b is formed by a shell element. The lower backrest element 52b is made of fiber-reinforced plastic. The lower backrest element 52b is preferably formed by multiple layers of fiber-reinforced plastic. For example, it can be envisaged that the lower backrest element 52b is composed of one or more GFK layers or one or more CFK layers. The lower backrest element 52b has a main region 102b. The main region 102b substantially forms the backrest support surface of the lower backrest element 52b and is substantially configured in the same way as the lower backrest element of the first embodiment. Different from the first embodiment, the lower backrest element 52b has a lip 104b at its upper end. The lip 104b is directly connected to the upper end of the main region 102b of the lower backrest element 52b. The lip 104b forms the upper end region of the lower backrest element 52b. The lip 104b is integrally formed with the rest of the lower backrest element 52b. The lip 104b is arranged centrally in the transverse direction at the upper end of the lower backrest element 52b. In principle, it can also be envisaged that the lower backrest element 52b further has two or more eccentrically arranged lips 104b, which are arranged at its upper end. If the lower backrest element 52b has multiple lips 104b at its upper end, these lips 104b are preferably arranged symmetrically with respect to the central axis of the lower backrest element 52b. The lip 104b of the lower backrest element 52b extends above the support positions 38b, 40b for supporting the pivotable backrest element 36b. The lip 104b of the lower backrest element 52b extends behind the region of the pivotable backrest element 36b, in particular behind the covering 100b of the pivotable backrest element 36b. The lip 104b is arranged such that the covering 100b of the pivotable backrest element 36b can be attached to it at its lower end. The covering 100b is attached to the front side 106b of the lip 104b of the lower backrest element 52b at its lower end. The covering 100b is preferably removably attached to the front side 106b of the lip 104b by means of a fleece tape and a hook tape. In principle, it can also be envisaged that the covering 100b is connected to the lip 104b of the lower backrest element 52b in other ways, such as by bonding.

[0070] The passenger seat arrangement has a reset module 56b. The reset module 56b is provided for resetting the backrest 34b from the comfort position to the upright seat position. The reset module 56b is provided for resetting the backrest 34b from the pivoted seat position to the upright seat position. The reset module 56b is at least substantially arranged in the area above the bearing positions 38b, 40b of the seat structural elements 26b, 28b. The reset module 56b is at least substantially arranged above the armrest height X, i.e. on the side facing away from the upright plane. The reset module 56b is at least mostly arranged above the knee area 50b of the backrest 34b.

[0071] The resetting module 56b has a leaf spring element 58b to provide a resetting force. The leaf spring element 58b is arranged to exert a spring force on the pivotable backrest element 36b so that the pivotable backrest element 36b is pivoted in the direction of the upright seat position. The leaf spring element 58b is attached to the lower backrest element 52b with its first lower end. The leaf spring element 58b is attached in the upper region of the lower backrest element 52b. The leaf spring element 58b is attached in the main region 102b of the lower backrest element 52b below the lip 104b.

[0072] In order to attach the leaf spring element 58b to the pivotable backrest element 36b, the reset module 56b has a first fastening unit 64b. Through the first fastening unit 64b, the leaf spring element 58b is firmly attached to the pivotable backrest element 36b. The pivotable backrest element 36b has a transverse carrier 66b. The transverse carrier 66b is arranged in the area above the bearing position 38b, 40b. The transverse carrier 66b is arranged behind the cover 100b. The leaf spring element 58b is directly attached to the transverse carrier 66b through the fastening unit 64b. In order to attach the leaf spring element 58b to the lower backrest element 52b, the reset module 56b has a second fastening unit 68b. Through the second fastening unit 68b, the leaf spring element 58b is firmly attached to the lower backrest element 52b. Through the second fastening unit 68b, the leaf spring element 58b is movably attached to the lower backrest element 52b.

[0073] The reset module 56b has a locking unit 88b. The locking unit 88b is arranged to lock or unlock the reset module 56b. The locking unit 88b is arranged to lock the backrest 34b, i.e. the pivotable backrest element 36b, at least in the upright seat position and the comfort position. The locking unit 88b is preferably functionally arranged between the pivotable backrest element 36b, in particular the backrest frame 60b and one of the seat structure elements 26b, 28b. The locking unit 88b is arranged above the knee area 50b of the backrest 34b. The locking unit 88b is preferably arranged in the area above the supporting position 38b, 40b of the seat structure elements 26b, 28b. The locking unit 88b is preferably substantially, i.e. mostly arranged above the armrest height X.

[0074] Figure 7Fig. 0 shows a third embodiment of a passenger seat device according to the present invention. The passenger seat device is part of a partially shown passenger seat 10c. The passenger seat 10c is constructed substantially the same as the passenger seat of the first embodiment of Figures 1 to 4 and will not be described in detail here. The passenger seat device has a mounting unit not shown in detail. The passenger seat device has two seat structure elements connected to the mounting unit, which are not shown in detail, and these seat structure elements are configured as seat partitions. The seat structure elements extend to the armrest height X of the passenger seat 10c.

[0075] The passenger seat device includes a backrest 34c. The backrest 34c forms a backrest support surface. The backrest 34c is attached to the seat structure element. The backrest 34c is pivotally configured. The backrest 34c is arranged to pivot between an upright seat position and a comfort position. The backrest 34c has a pivotable backrest element 36c. The backrest 34c is configured as a backrest with a high backrest pivot point. The backrest pivot point is formed by the rotation axis 44c of the support device 42c. The pivotable backrest element 36c is pivotally attached to the seat structure element. Each of the seat structure elements has a support position for supporting the backrest 34c. The pivotable backrest element 36c has a backrest frame 60c. The backrest frame 60c forms the load-bearing structure of the pivotable backrest element 36c. The pivotable backrest element 36c has a shell element 62c. The shell element 62c is configured as a plate-like element. The shell element 62c is formed of fiber-reinforced plastic. The shell element 62c is formed of, for example, GFK or CFK. The shell element 62c is arranged to form the backrest support surface of the pivotable backrest element 36c. The shell element 62c is firmly connected to the backrest frame 60c of the pivotable backrest element 36c. The shell element 62c preferably forms the backrest profile of the pivotable backrest element 36c. The backrest 34c has a lower backrest element not shown in detail. The lower backrest element is also formed of a shell element.

[0076] The passenger seat device has a reset module 56c. The reset module 56c is arranged to reset the backrest 34c from the comfort position to the upright seat position. The reset module 56c is arranged to reset the pivotable backrest element 36c. The reset module 56c is configured to provide a reset force to reset the backrest 34c, in particular to reset the pivotable backrest element 36c. The reset module 56c has a leaf spring element 58c to provide the reset force. Different from the first embodiment, the leaf spring element 58c is at least partially integrally formed with the pivotable backrest element 36c. The leaf spring element 58c is integrally formed with the housing element 62c of the pivotable backrest element 36c. The leaf spring element 58c is formed by the middle region 80c of the housing element 62c. The leaf spring element 58c is integrated into the middle region 80c of the housing element 62c. The leaf spring element 58c is embedded in the fiber-reinforced layer of the housing element 62c. The leaf spring element 58c is preferably formed as a leaf spring element embedded in the housing element 62c by a manufacturing method. However, in principle, it is also conceivable that the leaf spring element 58c is formed by a fiber layer in the middle region 80c itself of the housing element 62c. At the upper end, the leaf spring element 58c integrally formed with the housing element 62c forms a lateral strengthening element 108c. The lateral strengthening element 108c is integrally formed with the leaf spring element 58c and thus integrally formed with the housing element 62c. The lateral strengthening element 108c is arranged to better introduce the reset force into the pivotable backrest element 36c in the same way as the lateral carrier in the first embodiment. The pivotable backrest element 36c preferably does not have a separate lateral carrier in this embodiment. In principle, it is also conceivable that the leaf spring element 58c does not have the lateral strengthening element 108c. The pivotable backrest element 36c has elastic ribs 84c, 86c extending laterally outward from the middle region 80c in the lower region. The laterally extending elastic ribs 84c, 86c can also preferably be integrally formed with the leaf spring element 58c. To attach the leaf spring element 58c to the lower backrest element 52c, the reset module 56c has a fastening unit 68c, which is configured in the same way as the fastening unit in the first embodiment. The fastening unit 68c is at least composed of through slots 76c, 78c formed as oblong holes in the lower end of the leaf spring element 58c.

[0077] The reset module 56c has a locking unit not shown in detail here, which is configured substantially the same as the locking unit in the foregoing embodiment. The locking unit is preferably functionally arranged between one of the pivotable backrest element 36c, in particular the backrest frame 60c, and the seat structure element. The locking unit is preferably arranged in the region above the support position of the seat structure element. The locking unit is preferably arranged substantially, i.e., mostly, above the armrest height X.

[0078] Figure 8Shows a fourth embodiment of a passenger seat device according to the present invention. The passenger seat device is part of a partially shown passenger seat 10d. The passenger seat device has a mounting unit 12d. By means of the mounting unit 12d, the passenger seat 10d can stand upright on the cabin floor of the aircraft cabin. The mounting unit 12d has two lateral carriers 24d. The passenger seat device has two seat structural elements 26d, 28d. The two seat structural elements 26d, 28d are each arranged on one side of the seat area 30d of the passenger seat device. The two seat structural elements 26d, 28d are each arranged on the side part of the seat area 30d formed by the passenger seat 10d. The seat structural elements 26d, 28d are configured as seat partitions. The seat structural elements 26d, 28d are arranged on the lateral carriers 24d. The seat structural elements 26d, 28d are configured to be substantially L-shaped. Thus, the seat structural elements 26d, 28d extend upward away from the mounting unit 12d, especially the upright plane, in their rear regions. The seat structural elements 26d, 28d extend upward to a substantially armrest height X in their rear regions. The seat structural elements 26d, 28d extend to the armrest height X of the passenger seat 10d.

[0079] The passenger seat device includes a backrest 34d. The backrest 34d is pivotally arranged relative to the mounting unit 12d. The backrest 34d is attached to the seat structural elements 26d, 28d. The backrest 34d is arranged to pivot between an upright seat position and a comfort position. The backrest 34d has a pivotable backrest element 36d. The pivotable backrest element 36d is rotatably supported on the mounting unit 12d. The seat structural elements 26d, 28d each have a support position 38d, 40d for supporting the pivotable backrest element 36d. The passenger seat device has a support device 42d. The support device 42d is arranged to pivotally support the backrest 34d between the upright seat position and the comfort position. The support device 42d is arranged to pivotally support the pivotable backrest element 36d between the upright seat position and the comfort position. The support device 42d constitutes a rotation axis 44d. The support device 42d has two support bolts 46d, 48d. The support bolts 46d, 48d constitute the rotation axis 44d. The support bolts 46d, 48d are each connected to one of the support positions 38d, 40d of one of the seat structural elements 26d, 28d. The backrest 34d is configured as a backrest with a high backrest rotation point. The backrest rotation point, i.e., the rotation axis 44d of the support device 42d, is arranged above the knee area 50d of the passenger seat 10d. In order to constitute a high backrest rotation point, the seat structural elements 26d, 28d constitute their support positions 38d, 40d for supporting the backrest 34d in a high area. The support positions 38d, 40d of the seat structural elements 26d, 28d are arranged above the knee area 50d. The support positions 38d, 40d of the seat structural elements 26d, 28d are arranged at the armrest height X.

[0080] The pivotable backrest element 36d has a backrest frame 60d. The backrest frame 60d forms the load-bearing structure of the pivotable backrest element 36d. The pivotable backrest element 36d has a shell element 62d. The shell element 62d is formed of fiber-reinforced plastic. The shell element 62d is firmly connected to the backrest frame 60d of the pivotable backrest element 36d. The shell element 62d of the pivotable backrest element 36d has an intermediate region 80d. The pivotable backrest element 36d has elastic ribs 84d, 86d that extend laterally outward from the intermediate region 80d in the lower region. The elastic ribs 84d, 86d are preferably formed integrally with the shell element 62d, in particular with the intermediate region 80d.

[0081] The backrest 34d has a lower backrest element 52d. The lower backrest element 52d forms the lower region of the backrest 34d. The lower backrest element 52d forms a backrest support surface in the lower region of the backrest 34d. The lower backrest element 52d is firmly fastened to the seat structure elements 26d, 28d. The lower backrest element 52d extends substantially between the height of the lateral carriers 22d, 24d of the mounting unit 12d and the lower end of the pivotable backrest element 36d. The lower backrest element 52d is formed of a shell element. The lower backrest element 52d is formed of a shell made of fiber-reinforced plastic.

[0082] The passenger seat device has a reset module 56d. The reset module 56d is arranged to reset the backrest 34d from the comfort position to the upright seat position. The reset module 56d is arranged to reset the pivotable backrest element 34d. The reset module 56d is arranged to provide a reset force to reset the backrest 34d, in particular to reset the pivotable backrest element 36d. The reset module 56d has a leaf spring element 58d to provide the reset force. Different from the foregoing embodiments, the leaf spring element 58d is at least partially formed integrally with the lower backrest element 52d.

[0083] The leaf spring element 58d is formed integrally with the lower backrest element 52d configured as a shell element. The leaf spring element 58d is formed by the intermediate region of the lower backrest element 52d. The leaf spring element 58d is partially integrated into the lower shell element. The leaf spring element 58d is embedded in the fiber-reinforced layer of the lower backrest element 52d configured as a shell element. The leaf spring element 58d is preferably formed as a leaf spring element embedded in the lower backrest element 52d by a manufacturing method. The leaf spring element 58d extends from the lower backrest element 52d to the middle of the pivotable backrest element 36d.

[0084] In order to attach the leaf spring element 58d to the pivotable backrest element 36d, the reset module 56d has a first fastening unit 64d. The pivotable backrest element 36d has a transverse carrier 66d. The transverse carrier 66d is arranged in the region above the support positions 38d, 40d. The leaf spring element 58d is directly attached to the transverse carrier 66d by the fastening unit 64d. The leaf spring element 58d is axially displaceably connected to the transverse carrier 66d. The leaf spring element 58d has two through slots configured as oblong holes, through which the leaf spring element 58d is displaceably connected to the transverse carrier 66d by two fastening elements of the fastening unit 64d, such as screws. The first fastening unit 64d for attaching the leaf spring element 58d can preferably be configured equivalently to the second fastening unit of the first embodiment for attaching the leaf spring element to the lower backrest element 52d.

[0085] The reset module 56d has a locking unit 88d. The locking unit 88d is arranged to lock or unlock the reset module 56d. The locking unit 88d is arranged to lock the backrest 34d, i.e. the pivotable backrest element 36d, at least in the upright seat position and the comfort position. The locking unit 88d is preferably functionally arranged between one of the pivotable backrest element 36d, in particular the backrest frame 60d, and the seat structure elements 26d, 28d. The locking unit 88d is arranged above the knee region 50d of the backrest 34d. The locking unit 88d is preferably arranged in the region above the support positions 38d, 40d of the seat structure elements 26d, 28d. The locking unit 88d is preferably arranged substantially, i.e. mostly, above the armrest height X.

[0086] Figure 9Shows a fifth embodiment of a passenger seat device according to the present invention. The passenger seat device is part of a partially shown passenger seat 10e. The passenger seat device has a mounting unit 12e. By means of the mounting unit 12e, the passenger seat 10e can stand upright on the cabin floor of the aircraft cabin. The mounting unit 12e has two lateral carriers 24e. The passenger seat device has two seat structure elements 26e, 28e. The two seat structure elements 26e, 28e are each arranged on one side of the seat area 30e of the passenger seat device. The two seat structure elements 26e, 28e are each arranged on the side of the seat area 30e formed by the passenger seat 10e. The seat structure elements 26e, 28e are configured as seat dividers. The seat structure elements 26e, 28e are configured as substantially L-shaped. Each of the seat structure elements 26e, 28e has a first sub-region that is substantially horizontally oriented in the installed state. Each of the seat structure elements 26e, 28e has a second sub-region that is substantially vertically oriented in the installed state. The second sub-regions of the seat structure elements 26e, 28e are arranged in the rear region of the passenger seat 10e. The seat structure elements 26e, 28e are arranged on the lateral carriers 24e. Thus, the seat structure elements 26e, 28e extend upward away from the mounting unit 12e, especially the upright plane, in their rear regions. The seat structure elements 26e, 28e extend upward to a substantially armrest height X in their rear regions. The seat structure elements 26e, 28e extend to the armrest height X of the passenger seat 10e.

[0087] The passenger seat device includes a backrest 34e. The backrest 34e is pivotally arranged relative to the mounting unit 12e. The backrest 34 is attached to the seat structure elements 26e, 28e. The backrest 34e is arranged to pivot between an upright seat position and a comfort position. The backrest 34e has a pivotable backrest element 36e. Different from the foregoing embodiments, the backrest 34e is configured as a backrest with a lower backrest rotation point. Preferably, the backrest 34e does not have a lower backrest element rigidly connected to the seat structure elements 26e, 28e. The pivotable backrest element 36e extends into the region of the seat bottom 32e of the passenger seat. The pivotable backrest element 36e extends into the region below the seat surface formed by the seat bottom 32e. The pivotable backrest element 36e is pivotally supported in the region below the armrest height X.

[0088] The pivotable backrest element 36e is pivotably attached to the seat structure elements 26e, 28e. The seat structure elements 26e, 28e each have support positions 38e, 40e for supporting the pivotable backrest element 34e. To form the lower backrest pivot point, the seat structure elements 26e, 28e form their support positions 38e, 40e for supporting the pivotable backrest element 36e in the lower region. The support positions 38e, 40e of the seat structure elements 26e, 28e are preferably arranged in the lower third of the seat structure elements 26e, 28e, in particular in the lower third of the second sub-region of the seat structure elements 26e, 28e. The support positions 38e, 40e of the seat structure elements 26e, 28e are arranged in the knee region 50e of the backrest 34e. The support positions 38e, 40e of the seat structure elements 26e, 28e are arranged below the armrest height X.

[0089] The passenger seat device has a support device 42e. The support device 42e is arranged to pivotably support the pivotable backrest element 34e between an upright seat position and a comfort position. The support device 42e forms a rotation axis 44e. The rotation axis 44e for supporting the pivotable backrest element 36e is arranged below the armrest height X. The support device 42e has two support bolts 46e, 48e. The support bolts 46e, 48e form the rotation axis 44e. Each of the support bolts 46e, 48e is connected to one of the support positions 38e, 40e of one of the seat structure elements 26e, 28e.

[0090] The pivotable backrest element 36e has a backrest frame 60e. The backrest frame 60e extends into the region below the support positions 38e, 40e of the seat structure elements 26e, 28e. The pivotable backrest element 36e has a shell element 62e which is firmly connected to the backrest frame 60e of the pivotable backrest element 36e. The shell element 62e of the pivotable backrest element 36e has an intermediate region 80e and elastic ribs 84e, 86e which extend laterally outwards from the intermediate region 80e in the lower region.

[0091] The passenger seat device has a reset module 56e. The reset module 56e is arranged to reset the backrest 34e from the comfort position to the upright seat position. The reset module 56e is arranged to reset the pivotable backrest element 36e. The reset module 56e has a leaf spring element 58e to provide a reset force. The leaf spring element 58e is functionally arranged between the pivotable backrest element 36e and the mounting unit 12e. Different from other embodiments, the leaf spring element 58e is directly attached to the mounting unit 12e, in particular to the rear transverse carrier 24e, with its first lower end. The leaf spring element 58g is supported on the rear transverse carrier 24e of the mounting unit 12e with its lower end. To attach the leaf spring element 58e to the rear transverse carrier 24e, the reset module 56e has a fastening unit 68e. Through the fastening unit 68e, the leaf spring element 58e is firmly attached to the mounting unit 12e. The fastening unit 68e preferably has a clamp element that surrounds the rear transverse carrier 24e and is thus firmly attached to the transverse carrier 24e. Through the fastening unit 68e, the leaf spring element 58e is preferably movably attached to the rear transverse carrier 24e in at least one vertical direction. The leaf spring element 58e is attached to the pivotable backrest element 36e with its second upper end. To attach the leaf spring element 58e to the pivotable backrest element 36e, the reset module 56e has a fastening unit 64e.

[0092] The reset module 56e has a locking unit 88e. The locking unit 88e is arranged to lock or unlock the reset module 56e. The locking unit 88e is preferably arranged in the region above the support positions 38e, 40e of the seat structure elements 26e, 28e. The entire reset module 56e, except for the sub-region of the leaf spring element 58e that extends to the transverse carrier 24e of the mounting unit 12e, is arranged above the support positions 38e, 40e of the seat structure elements 26e, 28e, that is, above the rotation axis 44e of the pivotable backrest element 36e.

[0093] Figure 10 A seventh embodiment of a passenger seat device according to the present invention is shown. The passenger seat device is part of a partially shown passenger seat 10f. The passenger seat device has a mounting unit 12f. With the aid of the mounting unit 12f, the passenger seat 10f can stand upright on the cabin floor of the aircraft cabin. The mounting unit 12f has two transverse carriers 24f. The passenger seat device has two seat structure elements 26f, 28f. The two seat structure elements 26f, 28f are each arranged on one side of the seat area 30f of the passenger seat device. The two seat structure elements 26f, 28f are each arranged on the side of the seat area 30f formed by the passenger seat 10f. The pivotable backrest element 36f is pivotally attached to the seat structure elements 26f, 28f. The seat structure elements 26f, 28f each have support positions 38f, 40f for supporting the pivotable backrest element 36f.

[0094] The passenger seat device includes a seat bottom 32f. The seat bottom 32f has a load-bearing base body. The seat bottom 32f also has a cushioning element which is attached to the base body. The seat bottom 32f is attached to the mounting unit 12f. The passenger seat device includes a backrest 34f. The backrest 34f is pivotably arranged relative to the mounting unit 12f. The backrest 34f is attached to the seat structure elements 26f, 28f. The backrest 34f is configured as a backrest with a high backrest pivot point. The backrest 34f has a lower backrest element 52f. The lower backrest element 52f forms the lower region of the backrest 34f. The lower backrest element 52f forms a backrest support surface in the lower region of the backrest 34f. The lower backrest element 52f is rigidly connected to the mounting unit 12f. The backrest 34f is arranged to pivot between an upright seat position and a comfort position. The backrest 34f has a pivotable backrest element 36f. The pivotable backrest element 36f has a backrest frame 60f. The pivotable backrest element 36f has a shell element 62f. The pivotable backrest element 36f is configured substantially the same as the pivotable backrest element in the first embodiment and is therefore not described in detail here.

[0095] Different from the foregoing embodiments, the seat structure elements 26f, 28f do not form seat dividers. The passenger seat device has a seat shell element 140f. The seat shell element 140f integrally forms the base body of the lower backrest element 52f and the seat bottom 32f. The seat shell element 140f forms the base body of the seat bottom 32f in the lower front region. In the rear region, the seat shell element 140f forms the lower backrest element 52f. The seat shell element 140f is formed of fiber-reinforced plastic. The seat shell element 140f is preferably formed of CFK or GFK. In principle, it is also conceivable that the seat shell element 140f is formed of other suitable fiber-reinforced plastics. The seat shell element 140f is configured as substantially L-shaped in a side view. Different from the foregoing embodiments, the seat structure elements 26f, 28f are integrally formed with the seat shell element 140f. The seat structure elements 26f, 28f are at least partially formed of the base body of the lower backrest element 52f and the seat bottom 32f. The seat shell element 140f has side regions 142f, 144f. The side regions 142f, 144f each form a lateral end of the seat shell element 140f when viewed in the transverse direction. The seat structure elements 26f, 28f are formed in the side regions 142f, 144f of the seat shell element 140f. Each of the side regions 142f, 144f of the seat shell element 140f forms one of the seat structure elements 26f, 28f. Preferably, the seat shell element 140f each has at least one reinforcing element in its side regions 142f, 144f to form the seat structure elements 26f, 28f. The reinforcing element can be configured as an insert, for example, which is inserted into the side regions 142f, 144f of the seat shell element 140f. The reinforcing element configured as an insert can be formed of a metal such as aluminum or magnesium, for example. In principle, it is also conceivable that the reinforcing element of the local reinforcement is formed of CFK or GFK.

[0096] The seat shell element 140f extends in its side regions 142f, 144f up to the upper edge of the lower backrest element 52f formed by it, and seat structure elements 26f, 28f are formed in these side regions 142f, 144f. The seat shell element 140f extends in its side regions 142f, 144f up to the armrest height X, and seat structure elements 26f, 28f are formed in these side regions 142f, 144f. In its side regions 142f, 144f, the seat shell element 140f forms bearing positions 38f, 40f of the seat structure elements 26f, 28f in each case in the upper end region. In the upper end regions of its side regions 142f, 144f, the seat shell element 140f forms bearing positions 38f, 40f of the seat structure elements 26f, 28f, by means of which the pivotable backrest element 36f is pivotably supported. The pivotable backrest element 36f is pivotably connected directly to the seat shell element 140f by means of the bearing positions 38f, 40f.

[0097] The passenger seat device has a support device 42f. The support device 42f is arranged to pivotably support the pivotable backrest element 36f between an upright seat position and a comfort position. The support device 42f forms a pivot axis 44f. The support device 42f has two support bolts 46f, 48f. Each of the support bolts 46f, 48f is connected to one of the bearing positions 38f, 40f of the seat structure elements 26f, 28f formed by the seat shell element 140f. The support bolts 46f, 48f are firmly connected to the seat shell element 140f. By means of the support bolts 46f, 48f, the pivotable backrest element 36f is pivotably attached directly to the seat shell element 140f.

[0098] The seat shell element 140f is configured to be wider than the pivotable backrest element 36f. The seat shell element 140f encloses the pivotable backrest element 36, in particular its backrest frame 60f, at its lower end with the upper ends of its side regions 142f, 144f in which the bearing positions 38f, 40f are arranged. The support bolts 46f, 48f extend from the side regions 142f, 144f of the seat shell element 140f inwards in the direction of the backrest frame 60f of the pivotable backrest element 36f. The pivotable backrest element 36f is pivotably mounted on the support bolts 46f, 48f.

[0099] The passenger seat device has a reset module 56f. The reset module 56f is arranged to reset the backrest 34f from the comfort position to the upright seat position. The reset module 56f is arranged to reset the pivotable backrest element 36f. The reset module 56f is configured to provide a reset force to reset the backrest 34f, in particular to reset the pivotable backrest element 36f. The reset module 56f has a leaf spring element 58f to provide the reset force. The reset module 56f can preferably be configured as in one of the foregoing embodiments. For example, the reset module 56f is configured substantially the same as the reset module in the first embodiment.

[0100] The leaf spring element 58f is functionally arranged between the seat shell element 140f and the pivotable backrest element 36f. The leaf spring element 58h is attached at its first lower end to the seat shell element 140f, in particular to the lower backrest element 52f formed by the seat shell element 140f. To attach the leaf spring element 58f to the seat shell element 140f, the reset module 56f has a fastening unit 68f. By means of the fastening unit 68f, the leaf spring element 58f is movably attached to the seat shell element 140f. To attach the leaf spring element 58f to the pivotable backrest element 36f, the reset module 56f has a fastening unit 64f. The pivotable backrest element 36f has a lateral carrier 66f. The leaf spring element 58f is directly attached to the lateral carrier 66f by means of the fastening unit 64f.

[0101] The reset module 56f has a locking unit 88f. The locking unit 88f is arranged to lock or unlock the reset module 56f. The locking unit 88f is preferably functionally arranged between the pivotable backrest element 36f, in particular the backrest frame 60f, and the seat shell element 140f. The locking unit 88f is arranged above the knee area 50f of the backrest 34f. The locking unit 88f is preferably arranged in the area above the support positions 38f, 40f of the seat structure elements 26f, 28f formed by the seat shell element 140f. The locking unit 88f is preferably arranged substantially, i.e., mostly, above the armrest height X.

[0102] Explanation of reference numerals:

[0103] 10 Passenger seat 64 Fastening unit

[0104] 12 Mounting unit 66 Lateral carrier

[0105] 14 Passenger seat row 68 Fastening unit

[0106] 16 Passenger seat 70 Fastening base

[0107] 18 Seat foot 72 Fastening element

[0108] 20 Seat foot 74 Fastening element

[0109] 22 Transverse carrier 76 through - slot

[0110] 24 Transverse carrier 78 through - slot

[0111] 26 Middle area of seat structure element 80

[0112] 28 Storage area of seat structure element 82

[0113] 30 Rib of seat area 84

[0114] 32 Rib of seat bottom 86

[0115] 34 Locking unit of backrest 88

[0116] 36 Actuating element of pivotable backrest element 90

[0117] 38 Armrest at support position 92

[0118] 40 Armrest at support position 94

[0119] 42 Support device

[0120] 44 Axis of rotation

[0121] 46 Cover for support bolt 100

[0122] 48 Main area of support bolt 102

[0123] 50 Lip in knee area 104

[0124] 52 Front side of lower backrest element 106

[0125] 54 Fastening element 108 for transverse strengthening element

[0126] 56 Reset module

[0127] 58 Leaf - spring element

[0128] 60 Seat shell element 140 of backrest frame

[0129] 62 Side area of shell element 142

[0130] 144 Side area

Claims

1. A passenger seat device, comprising: a mounting unit (12a; 12b; 12c; 12d; 12e; 12f), the mounting unit (12a; 12b; 12c; 12d; 12e; 12f) being arranged for mounting on a cabin bottom; a backrest (34a; 34b; 34c; 34d; 34e; 34f); and a supporting device (42a; 42b; 42c; 42d; 42e; 42f), the supporting device (42a; 42b; 42c; 42d; 42e; 42f) being arranged to pivotally support the backrest (34a; 34b; 34c; 34d; 34e; 34f) relative to the mounting unit (12a; 12b; 12c; 12d; 12e; 12f) between an upright seat position and a comfort position, in, The backrest (34a; 34b; 34c; 34d; 34e; 34f) comprises a pivotable backrest element (36a; 36b; 36c; 36d; 36e; 36f), characterized by at least one reset module (56a; 56b; 56c; 56d; 56e; 56f), the reset module (56a; 56b; 56c; 56d; 56e; 56f) being at least configured to provide a reset force for resetting the backrest (34a; 34b; 34c; 34d; 34e; 34f) from the comfort position to the upright seat position and comprising for this purpose at least one leaf spring element (58a; 58b; 58c; 58d; 58e; 58f).

2. The passenger seat device according to claim 1, It is characterized in that The pivotable backrest element (36a-36f) is pivotably connected to the mounting unit (12a-12f) via the bearing device (42a-42f), wherein the leaf spring element (58a-58f) is functionally arranged between the pivotable backrest element (36a-36f) and the mounting unit (12a-12f).

3. A passenger seat device according to claim 1 or 2, It is characterized in that The leaf spring elements (58a-58f) are at least partially integrated into the pivotable backrest elements (36a-36f).

4. The passenger seat device according to claim 3, It is characterized in that The leaf spring elements (58a-58f) are at least partially formed in one piece with the pivotable backrest elements (36a-36f).

5. A passenger seat arrangement according to any one of the preceding claims, It is characterized in that The pivotable backrest elements (36a-36f) are arranged at least in the lower region with resilient ribs (84a-84f, 86a-86f) extending laterally outward from the middle region (80a-80f), respectively, and the resilient ribs (84a-84f, 86a-86f) are configured to be deflected in a spring-resilient manner.

6. The passenger seat device according to claim 5, It is characterized in that The pivotable backrest element (36a - 36f) includes a shell element (62a - 62f), and the shell element (62a - 62f) substantially integrally forms the vertical continuous intermediate region (80a - 80f) and the laterally outwardly extending ribs (84a - 84f, 86a - 86f) in the lower region.

7. The passenger seat device according to at least claim 6, characterized in that the continuous intermediate region (80a - 80f) of the shell element (62a - 62f) has a receiving region (82a - 82f) for the leaf spring element (58a - 58f) or at least partially forms the leaf spring element (58a - 58f).

8. The passenger seat device according to any one of the preceding claims, characterized in that the backrest (34a - 34f) includes a rigid lower backrest element (52a - 52f), and the leaf spring element (58a - 58f) is functionally arranged between the lower backrest element (52a - 52f) and the pivotable backrest element (36a - 36f).

9. The passenger seat device according to claim 8, characterized in that the leaf spring element (58a - 58f) for providing a restoring force is at least partially integrally formed with the lower backrest element (52a - 52f).

10. The passenger seat device according to claim 8, characterized in that the support device (42a - 42f) forms a rotation axis (44a - 44f), and the pivotable backrest element (36a - 36f) is pivotally supported relative to the lower backrest element (52a - 52f) through the rotation axis (44a - 44f), wherein the rotation axis (44a - 44f) is arranged above the knee region (50a - 50f) of the backrest (34a - 34f).

11. The passenger seat device according to claim 1, characterized in that the pivotable backrest element (36a - 36f) is supported on the mounting unit (12a - 12f) in the lower region.

Images