US-20260125154-A1 - PASSENGER SEAT DEVICE

US20260125154A1US 20260125154 A1US20260125154 A1US 20260125154A1US-20260125154-A1

Abstract

A passenger seat device with two seat structure elements, which are in each case arranged on a respective side of a sitting area, with two bearing elements, wherein respectively one bearing element is fixedly connected with one of the seat structure elements, with a backrest including at least one pivotable backrest element which is pivotably supported on the seat structure elements via the bearing elements, with at least one reset module including at least one spring element to provide a resetting force for restoring the pivotable backrest element from a comfort position into an upright seat position, and with a locking device which is configured for locking the pivotable backrest element at least in the upright seat position, wherein the locking device includes at least one locking module, which is arranged between the first seat structure element and a load-bearing element of the pivotable backrest element.

Inventors

Thomas Drenzeck
Michael Horlacher
Maik Thiele

Assignees

RECARO AIRCRAFT SEATING GMBH & CO. KG

Dates

Publication Date: 20260507
Application Date: 20231117
Priority Date: 20221118

Claims (20)

1 . A passenger seat device with a mounting unit for mounting on a mounting plane, with two seat structure elements, which are in each case arranged on a respective side of a sitting area, with two bearing elements, wherein respectively one bearing element is fixedly connected with one of the seat structure elements, with a backrest comprising at least one pivotable backrest element which is pivotably supported on the seat structure elements via the bearing elements, with at least one reset module comprising at least one spring element to provide a resetting force for restoring the pivotable backrest element from a comfort position into an upright seat position, and with a locking device which is configured for locking the pivotable backrest element at least in the upright seat position, wherein the locking device comprises at least one locking module, which is arranged between the first seat structure element and a load-bearing element of the pivotable backrest element.
2 . The passenger seat device according to claim 1 , wherein the locking device is arranged mostly above the bearing elements.
3 . The passenger seat device according to claim 1 , wherein the locking device is realized separately from the spring element.
4 . The passenger seat device according to claim 1 , wherein the locking module is arranged on an outer side of the load-bearing element of the pivotable backrest element.
5 . The passenger seat device according to claim 1 , wherein the locking module comprises a first locking unit and a second locking unit, which are supported movably with respect to each other and are configured to be locked with each other in the upright seat position and in the comfort position in at least one of a form-fitting and force-fitting manner.
6 . The passenger seat device according to claim 5 , wherein the first locking unit comprises a base body, and comprises a blocking element which is supported on the base body in a spring-loaded and adjustable manner between a locking position and a release position, and is configured to be coupled with the second locking unit in a form-fitting manner for locking.
7 . The passenger seat device according to claim 5 , wherein the first locking unit comprises a linear guidance supporting the blocking element, which is supported in a spring-loaded and adjustable manner, linearly along a displacement path.
8 . The passenger seat device according to claim 6 , wherein the second locking unit comprises a form-fitting element which, for the purpose of locking the pivotable backrest element in the upright seat position, is configured to fix the blocking element of the first locking unit in at least one of a form-fitting and force-fitting manner.
9 . The passenger seat device according to claim 5 , wherein in a mounted state, the first locking unit is mounted on the pivotable backrest element and the second locking unit is mounted on the bearing element, in a loss-proof manner.
10 . The passenger seat device according to claim 7 , wherein the second locking unit comprises an attachment element, which is in a normal operation state connected to the bearing element in a rotationally fixed manner, and comprises an overload unit, which is configured to permit a relative movement between the attachment element and the bearing element in the event of an overload.
11 . The passenger seat device according to claim 5 , wherein the second locking unit comprises a second form-fitting element, which forms an end abutment for the comfort position of the pivotable backrest element, and that the first locking unit comprises a second blocking element which is configured, in the comfort position, to lock the pivotable backrest element by a form-fitting connection to the second form-fitting element of the second locking unit.
12 . The passenger seat device according to claim 5 , wherein the second locking unit comprises an eccentric adjusting unit, by means of which a position of the form-fitting element is adjustable relative to the first locking unit.
13 . The passenger seat device according to claim 6 , wherein the second locking unit comprises an abutment surface against which the blocking element of the first locking unit abuts in the comfort position of the pivotable backrest element, wherein the abutment surface forms an inclined surface via which the blocking element can be pressed out of its locking position into a release position.
14 . The passenger seat device according to claim 1 , wherein the reset module comprises a release unit, which is configured, in a release position, to undo a coupling between the first locking unit and the second locking unit in order to enable a pivoting of the pivotable backrest element forwards, beyond the upright seat position into a non-use position.
15 . The passenger seat device according to claim 1 , wherein the locking device comprises a second locking module, which is arranged on a side of the pivotable backrest element that is situated opposite the first locking module and is realized substantially identically to the first locking module.
16 . The passenger seat device according to claim 5 , wherein the second locking module is actuatable together with the first locking module via a Bowden cable, wherein the second locking module is connected in series with the first locking module.
17 . The passenger seat device according to claim 1 , wherein the locking device is configured for a stepless blocking of the pivotable backrest element between the comfort position and the upright seat position.
18 . The passenger seat device according to claim 17 , wherein the at least one locking module comprises a friction unit, which is configured to provide a holding force for a stepless blocking of the pivotable backrest element.
19 . The passenger seat device according to claim 17 , wherein one of the locking units of the locking module comprises a rotatably supported shaft, which is configured to rotate during a pivoting of the pivotable backrest element, and comprises a friction unit which, for the locking of the pivotable backrest element, is configured to secure the rotatably supported shaft against rotation in a force-fitting manner.
20 . The passenger seat device according to claim 17 , wherein one of the locking units of the locking module comprises a base body, wherein the locking module comprises a coupling gear via which the base body is connected to the rotatably supported shaft of the other locking unit, and which is configured to transmit a pivoting movement of the pivotable backrest element to the rotatably supported shaft.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This patent application is a U.S. national stage application of the international patent application PCT/EP2023/082296, filed on Nov. 17, 2023, which is based on and claims priority to the German patent application DE 10 2022 130 632.1, filed on Nov. 18, 2022 and to the German follow-up patent application DE 10 2023 114 753.6, filed on Jun. 5, 2023, the contents of which are incorporated herein by reference. PRIOR ART The invention concerns a passenger seat device. A passenger seat device with a mounting unit for mounting on a mounting plane, with two seat structure elements, which are in each case arranged on a respective side of a sitting area, with two bearing elements, wherein respectively one bearing element is fixedly connected with one of the seat structure elements, with a backrest comprising at least one pivotable backrest element which is pivotably supported on the seat structure elements via the bearing elements, with at least one reset module comprising at least one spring element to provide a resetting force for restoring the backrest element from a comfort position into an upright seat position, and with a locking device which is configured for locking the pivotable backrest element at least in the upright seat position, has already been proposed. The objective of the invention is in particular to provide a generic device with improved properties with regard to construction space requirements. The objective is achieved according to the invention. ADVANTAGES OF THE INVENTION The invention is based on a passenger seat device with a mounting unit for mounting on a mounting plane, with two seat structure elements which are in each case arranged on a respective side of a sitting area, with two bearing elements, wherein respectively one bearing element is fixedly connected with one of the seat structure elements, with a backrest comprising at least one pivotable backrest element which is pivotably supported on the seat structure elements via the bearing elements, with at least one reset module comprising at least one spring element to provide a resetting force for restoring the backrest element from a comfort position into an upright seat position, and with a locking device which is configured for locking the pivotable backrest element at least in the upright seat position. It is proposed that the locking device comprises at least one locking module, which is arranged between the first seat structure element and a load-bearing element of the pivotable backrest element. “Configured” is in particular to mean specifically programmed, designed and/or equipped. By an object being configured for a certain function is in particular to be understood that the object fulfils and/or carries out this certain function in at least one application state and/or operation state. A “passenger seat device” is preferably to mean a device that forms at least a portion of a passenger seat and/or the entire passenger seat. The passenger seat device is preferably realized as an aircraft seat device. Preferably, a “passenger seat” is in particular to mean a seat that is configured to form a sitting area for a passenger and is for this purpose arranged in a means of transport. The passenger seat is preferably realized as an aircraft seat. In principle, it is also conceivable that the passenger seat is realized as a train seat. In principle, it would also be conceivable that the passenger seat is realized as a seat for a different means of transport. The passenger seat is preferably realized as part of a seat row of several passenger seats which are arranged side by side. The passenger seat preferably comprises at least one seat bottom, which forms a sitting area for a passenger, and a backrest providing a backrest support surface on which a passenger sitting on the passenger seat can support himself/herself with his/her back. Herein a “seat bottom” is in particular to mean a portion of the passenger seat that provides a sitting area on which a passenger can sit, the seat bottom preferably comprising at least a base body and a cushion element arranged on the base body. Furthermore, the passenger seat comprises a mounting unit, via which the passenger seat is mounted on a floor, in particular a cabin floor, and to which further components of the passenger seat, such as the seat bottom and the backrest, are connected. Preferably, a “mounting unit” is to mean a base structure of the passenger seat that forms a load-bearing structure of the passenger seat. Via the mounting unit, the passenger seat is connected on a mounting plane, i.e. in particular on the cabin floor. The mounting unit preferably comprises at least two seat bases and at least one transverse element that is coupled with the seat bases. The transverse element forms a support tube. Preferably the mounting unit comprises two transverse elements, a front transverse element and a rear transverse element. The mounting unit is pre