WO2024256249A1 - Luftkissenanordnung für eine rückenlehne eines fahrzeugsitzes, fahrzeugsitz, kraftfahrzeug - Google Patents
Luftkissenanordnung für eine rückenlehne eines fahrzeugsitzes, fahrzeugsitz, kraftfahrzeug Download PDFInfo
- Publication number
- WO2024256249A1 WO2024256249A1 PCT/EP2024/065534 EP2024065534W WO2024256249A1 WO 2024256249 A1 WO2024256249 A1 WO 2024256249A1 EP 2024065534 W EP2024065534 W EP 2024065534W WO 2024256249 A1 WO2024256249 A1 WO 2024256249A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air cushions
- air
- pair
- cushions
- air cushion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
- B60N2/914—Hydro-pneumatic adjustments of the shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/665—Lumbar supports using inflatable bladders
Definitions
- the invention relates to an air cushion arrangement for a backrest of a vehicle seat, in particular with a massage function for an adjustable lumbar support of the backrest, with at least a first and a second pair of air cushions, each of which can be assigned or is assigned to a back region and/or shoulder region of the backrest, wherein the air cushions of the pairs of air cushions are each designed and arranged at least substantially mirror-symmetrically to a longitudinal center axis of the air cushion arrangement, wherein the air cushions of the pairs of air cushions each have a longitudinal edge facing the other air cushion of the same pair of air cushions, and wherein the air cushions of the first pair of air cushions are arranged such that the longitudinal edges of the first pair of air cushions run at least approximately parallel to one another.
- the invention relates to a vehicle seat with such an air cushion arrangement and to a motor vehicle with such a vehicle seat.
- Air cushion arrangements of the type mentioned above are known from the prior art.
- Pneumatic lumbar supports are also known, for example for vehicle seats in motor vehicles, which enable the lumbar spine support (lordosis) to be adjusted for a user-specific natural contour of the spine in the lumbar region (S-contour of the spine) by filling air cushions or air bubbles in such air cushion arrangements.
- the air supply is usually carried out by pump devices with a pump motor. Filling, venting and maintaining the air pressure are controlled via control devices and valve arrangements.
- an air cushion device with a plurality of pairs of air cushions wherein the air cushion device comprises an even number of air cushions, wherein two of the air cushions are arranged in a row, in particular mirror-symmetrically.
- a pair of air cushions are arranged in a shoulder area of a backrest, and spaced apart from this Additional pairs of air cushions are arranged in a (lower) back area of the backrest.
- the long edges of all air cushions run parallel to each other.
- the invention is based on the object of creating an improved air cushion arrangement which has further increased ergonomics for a user.
- the object underlying the invention is achieved by an air cushion arrangement with the features of claim 1.
- the air cushions of the second pair of air cushions are arranged twisted relative to one another in such a way that the longitudinal edges of the second pair of air cushions enclose a first acute angle to the longitudinal center axis.
- a pair of air cushions preferably has exactly two air cushions, one of the air cushions being arranged on a first side, in particular on the left, with respect to the longitudinal center axis, and the other air cushion cover, in particular at the same height, with respect to the longitudinal center axis on a second side facing away from the first side, in particular on the right.
- the twisted arrangement of the air cushions relative to the longitudinal center axis advantageously further improves seating behavior and a massage feeling for a user of the vehicle seat.
- the air cushions can preferably be assigned or are assigned to a shoulder area of the backrest.
- the invention is based on the finding that by rotating the air cushions, ergonomics are improved for the user, particularly in the shoulder area, because the contour of the air cushions is thus better adapted to the natural contour of the user's shoulder blades.
- the air cushion arrangement as a whole is particularly preferably designed to be essentially mirror-symmetrical to its longitudinal center axis, at least in relation to its outer contour.
- the air cushions in particular have an elastically deformable film.
- the air cushions are constructed from two films of this type that are connected to one another in an airtight manner, in particular welded, like a sandwich.
- the air cushions particularly preferably have a thickness of at most 5 mm.
- the air cushions have a nominal thickness of 3 mm ⁇ 1 mm.
- at least two of the air cushions, preferably all of the air cushions are arranged or formed on a common film carrier.
- the air cushions are particularly preferably connectable or connected by lines to a pneumatic pump arrangement, in particular one having a pump motor.
- the first angle of the second pair is a maximum of 10°, in particular in a range of 2° to 10°, preferably 3 to 8°. With such an angle, the ergonomics are particularly advantageous. Particularly preferably, a nominal dimension of the first angle is 5.7° ⁇ 2°.
- the two air cushions of the pair each enclose the first angle with the longitudinal central axis, so that the longitudinal edges of two different air cushions enclose a double first angle with each other.
- the air cushions are each at least approximately rectangular in cross-section, so that the two remaining edges parallel to each other also enclose an acute angle with the longitudinal central axis, this angle corresponding to the difference between a right angle and the first angle, i.e. in particular at least 80°, but less than 90°.
- the air cushion arrangement has a third pair of air cushions that can be assigned or is assigned to a back area and/or shoulder area of the backrest, that the air cushions of the third pair of air cushions are each designed and arranged at least substantially mirror-symmetrically to a longitudinal center axis of the air cushion arrangement and have a longitudinal edge facing the other air cushion of the third pair of air cushions, and that the air cushions of the third pair of air cushions are arranged twisted to one another in such a way that the longitudinal edges of the third pair of air cushions enclose a second acute angle to the longitudinal center axis.
- the first and second angles are of equal size.
- the equal angles make the air cushion arrangement particularly simple in geometric terms.
- first and second angles are of different sizes.
- the different angles provide a particularly advantageous opportunity for further optimizing ergonomics.
- the different angles take into account different user sizes.
- one of the angles, in particular the second angle is at least, in particular exactly, twice as large as the other of the angles, in particular the first angle. This results in the advantage that the ergonomic effect of the arrangement is particularly pronounced.
- the second pair of air cushions is arranged between the first and the third pair of air cushions in relation to the longitudinal center axis.
- the advantages of the air cushion arrangement according to the invention are particularly pronounced.
- the first angle is larger than the second angle, in particular at least or exactly twice as large, so that the more strongly twisted third pair of air cushions is located further out, i.e. further up or closer to the user's shoulder area when the backrest is used as intended, so that the ergonomics are advantageously optimized.
- the air cushions of at least one of the pairs of air cushions are geometrically at least substantially identical to the air cushions of another of the pairs of air cushions, in particular all pairs of air cushions. This advantageously ensures that the respective pairs exert a consistent effect on a user when the air cushions are activated.
- the air cushion arrangement is also advantageously simple in terms of construction and can therefore be manufactured inexpensively.
- the air cushions of at least one of the pairs of air cushions are each at least approximately rectangular in cross-section.
- the advantages of the air cushion arrangement according to the invention are particularly pronounced.
- the air cushions have rounded corners.
- a ratio of the edge lengths of the air cushions is at least approximately or at most 4 to 3.
- a distance between the edges of two air cushions is at least approximately or at most as large as one, in particular half, transverse or longitudinal extension of the respective air cushions.
- the vehicle seat for a motor vehicle with the features of claim 10 has a backrest and is characterized in that the air cushion arrangement according to the invention is arranged in or on the backrest, in particular a seat frame.
- the motor vehicle with the features of claim 11 is characterized by at least one vehicle seat according to the invention. This also results in the advantages already mentioned. In particular, the motor vehicle has the vehicle seat as a driver's seat. Further advantages and preferred features and combinations of features emerge in particular from what has been described above and from the claims. The invention will be explained in more detail below with reference to the drawings.
- Figure 1 shows an advantageous air cushion arrangement
- Figure 2 shows a detailed view of the air cushion arrangement.
- Figure 1 shows an air cushion arrangement 10 for a backrest of a vehicle seat (not shown in detail).
- the air cushion arrangement 10 is in particular part of a pneumatically adjustable lumbar support, for example with a massage function.
- the air cushion arrangement 10 has a plurality of pairs, in this case five pairs of air cushions.
- the pairs of air cushions can each be assigned or are assigned to a back area and/or shoulder area of the backrest.
- the air cushion arrangement 10 has a first pair 1 of air cushions T, 1", a second pair 2 of air cushions 2', 2", a third pair 3 of air cushions 3', 3", a fourth pair 4 of air cushions 4', 4", and a fifth pair 5 of air cushions 5', 5".
- the air cushions T-5" of the pairs 1-5 of air cushions T-5" are each designed and arranged at least substantially mirror-symmetrically to a longitudinal center axis 11 of the air cushion arrangement 10. Furthermore, the air cushions T-5" each have an elastically deformable film and are arranged on a common film carrier 12.
- the pairs 1-5 of air cushions T-5" are arranged in the vertical direction with respect to the longitudinal center axis 11 from top to bottom as follows: at the top the third pair 3, then the second pair 2, the first pair 1, the fourth pair 4 and at the bottom the fifth pair 5.
- the second pair 2 and the third pair 3 are or can be assigned to a shoulder area (or an upper back area) of the backrest and thus of a user, and the first pair 1 as well as the fourth pair 4 and the fifth pair 5 are or can be assigned to a (lower) back area of the backrest and thus of the user.
- All T-5" air cushions are geometrically identical to each other, at least in essence and at least in terms of their respective outer contours.
- the T-5" air cushions are The cross-section is at least approximately rectangular. In this case, the T-5" air cushions each have rounded corners.
- the air cushions 1'-5" of the pairs 1-5 each have a longitudinal edge L facing the other air cushion T-5" of the same pair 1-5 of air cushions 1-5.
- one of the longitudinal edges L of an air cushion T-5' of each pair 1-5 is provided with a reference symbol.
- the air cushions T-5" have cross-sections that deviate from a rectangular shape, wherein the air cushions T-5" preferably each have at least one longitudinal edge L facing the other air cushion T-5" of the same pair 1-5 and running at least in sections as a straight line. Geometrically, it is also not necessary for this to be a longitudinal edge, in this case a lateral one. The geometric observations described also apply to a corresponding longitudinal edge designed as an upper edge or lower edge.
- the air cushions 1', 1" of the first pair 1, the air cushions 4', 4" of the fourth pair 4, and the air cushions 5', 5" of the fifth pair 5 are in any case arranged in such a way that all of their respective longitudinal edges L (due to the rectangular shape) run at least approximately parallel to one another.
- the air cushions 2', 2" of the second pair 2, as well as the air cushions 3', 3" of the third pair 3 are each arranged rotated relative to one another in such a way that the longitudinal edges L of the second pair 2 of air cushions 2', 2" enclose a first acute angle ⁇ to the longitudinal center axis 11, and that the longitudinal edges L of the third pair 3 of air cushions 3', 3" enclose a second acute angle ⁇ to the longitudinal center axis 11.
- Figure 2 shows a corresponding detailed representation of the second pair 2 and the third pair 3.
- the first angle a is in this case a maximum of 10°, more precisely it is in a range from 3° to 8°.
- the first angle a and the second angle ß are different sizes.
- the second angle ß is exactly twice as large as the first angle a.
- the angles a, ß are the same size. reference symbol
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24731562.5A EP4727796A1 (de) | 2023-06-15 | 2024-06-06 | Luftkissenanordnung für eine rückenlehne eines fahrzeugsitzes, fahrzeugsitz, kraftfahrzeug |
| CN202480035354.1A CN121263333A (zh) | 2023-06-15 | 2024-06-06 | 用于交通工具座椅的椅背的气垫装置、交通工具座椅、机动车 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023205619.4A DE102023205619A1 (de) | 2023-06-15 | 2023-06-15 | Luftkissenanordnung für eine Rückenlehne eines Fahrzeugsitzes, Fahrzeugsitz, Kraftfahrzeug |
| DE102023205619.4 | 2023-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024256249A1 true WO2024256249A1 (de) | 2024-12-19 |
Family
ID=91433095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/065534 Ceased WO2024256249A1 (de) | 2023-06-15 | 2024-06-06 | Luftkissenanordnung für eine rückenlehne eines fahrzeugsitzes, fahrzeugsitz, kraftfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4727796A1 (de) |
| CN (1) | CN121263333A (de) |
| DE (1) | DE102023205619A1 (de) |
| WO (1) | WO2024256249A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9504416B2 (en) * | 2013-07-03 | 2016-11-29 | Sleepiq Labs Inc. | Smart seat monitoring system |
| US20170088029A1 (en) * | 2014-05-19 | 2017-03-30 | Ts Tech Co., Ltd. | Vehicle seat |
| US20180326881A1 (en) * | 2017-05-11 | 2018-11-15 | Lear Corporation | Inflatable support bladder assembly |
| DE202019100710U1 (de) | 2019-02-07 | 2020-02-11 | Alfmeier Präzision SE | Luftkissenvorrichtung und Sitz mit der Luftkissenvorrichtung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017111429B4 (de) * | 2017-05-24 | 2023-10-26 | Alfmeier Präzision SE | Vorrichtung zur Konturverstellung eines Sitzes, insbesondere eines Fahrzeugsitzes, und Sitz, insbesondere Fahrzeugsitz mit einer solchen Vorrichtung |
| DE102020104308A1 (de) * | 2020-02-19 | 2021-08-19 | Audi Aktiengesellschaft | Massagesystem |
| DE202021103121U1 (de) * | 2021-06-09 | 2022-06-10 | Alfmeier Präzision SE | Luftkissenvorrichtung und Sitz mit der Luftkissenvorrichtung |
| DE102021120600A1 (de) * | 2021-08-09 | 2023-02-09 | Audi Aktiengesellschaft | Massagesystem |
-
2023
- 2023-06-15 DE DE102023205619.4A patent/DE102023205619A1/de active Pending
-
2024
- 2024-06-06 EP EP24731562.5A patent/EP4727796A1/de active Pending
- 2024-06-06 CN CN202480035354.1A patent/CN121263333A/zh active Pending
- 2024-06-06 WO PCT/EP2024/065534 patent/WO2024256249A1/de not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9504416B2 (en) * | 2013-07-03 | 2016-11-29 | Sleepiq Labs Inc. | Smart seat monitoring system |
| US20170088029A1 (en) * | 2014-05-19 | 2017-03-30 | Ts Tech Co., Ltd. | Vehicle seat |
| US20180326881A1 (en) * | 2017-05-11 | 2018-11-15 | Lear Corporation | Inflatable support bladder assembly |
| DE202019100710U1 (de) | 2019-02-07 | 2020-02-11 | Alfmeier Präzision SE | Luftkissenvorrichtung und Sitz mit der Luftkissenvorrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023205619A1 (de) | 2024-12-19 |
| EP4727796A1 (de) | 2026-04-22 |
| CN121263333A (zh) | 2026-01-02 |
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