BACKREST FOR A VEHICLE SEAT

Abstract

A backrest for a vehicle seat may have a backrest part, a head restraint part and an acoustic arrangement. The acoustic arrangement is arranged above the backrest part and may have at least one central loudspeaker and at least two side loudspeakers. The central loudspeaker may be built into the head restraint part and each of the at least two side loudspeakers may be arranged on a support. A vehicle seat with the backrest is also provided.

Claims

1-15. (canceled)

16. A backrest for a vehicle seat, wherein the backrest comprises: a backrest part, a head restraint part and an acoustic arrangement, wherein the acoustic arrangement is arranged above the backrest part and comprises at least one central loudspeaker and at least two side loudspeakers, wherein the central loudspeaker is integrated in the head restraint part and the at least two side loudspeakers are arranged on a support.

17. The backrest as claimed in claim 16, wherein the acoustic arrangement comprises a control unit with a noise compensation and/or noise elimination function which is configured such that undesirable noises in the vicinity of the acoustic arrangement can be suppressed or can be faded out, for example, by frequency superimposition.

18. The backrest as claimed in claim 16, wherein the control unit is configured to take into consideration the position of the user of the vehicle seat, wherein the position of the user comprises the position of the head of the user of the vehicle seat.

19. The backrest as claimed in claim 16, wherein the support has at least one bow.

20. The backrest as claimed in claim 16, wherein the support is elastic and/or flexible.

21. The backrest as claimed in claim 16, wherein at least one of the two side loudspeakers can be adjusted by the support in a position relative to a user's head.

22. The backrest as claimed in claim 16, wherein the support comprises a polymer material comprising a rubber-like polymer material comprising ethylene-propylene-diene rubber, or spring steel.

23. The backrest as claimed in claim 16, wherein the acoustic arrangement comprising the side loudspeakers, is oriented in the direction of an ear region of a user of the vehicle seat.

24. The backrest as claimed in claim 16, wherein the support protrudes on either side of the head restraint part, wherein the protrusion is obliquely forward and outward.

25. The backrest as claimed in claim 16, wherein the two side loudspeakers are arranged and held in a respective receiving opening of the support.

26. The backrest as claimed in claim 16, wherein the two side loudspeakers are combined mid-range and tweeter loudspeakers.

27. The backrest as claimed in claim 16, wherein the side loudspeakers are arranged in such a manner that a directly radiating acoustic sound or an indirectly radiating acoustic sound is oriented in the direction of ears of a user of the vehicle seat.

28. The backrest as claimed in claim 16, wherein the central loudspeaker is a low-frequency loudspeaker.

29. The backrest as claimed in claim 16, wherein the central loudspeaker is covered by a cover element, the cover element comprising a padded cover element, or a separate padding element in the direction of a head support surface.

30. A vehicle seat, having the backrest as claimed in claim 16

Description

FIGURES AND EMBODIMENTS OF THE INVENTION

[0027] The invention is explained in more detail below with reference to advantageous exemplary embodiments which are illustrated in the figures. However, the invention is not restricted to these exemplary embodiments. In the figures:

[0028] FIG. 1: schematically shows a perspective view obliquely from the front of a backrest according to the invention according to a first exemplary embodiment,

[0029] FIG. 2: schematically shows a perspective view obliquely from the rear of a backrest according to the invention according to a second exemplary embodiment, and

[0030] FIG. 3: schematically shows a vehicle seat according to the invention.

[0031] Position details and direction details which are used, for example front, rear, top and bottom, refer to a viewing direction of an occupant sitting on a vehicle seat 1 shown in FIG. 3 in a normal sitting position, wherein the vehicle seat 1 is installed in the vehicle, in a use position suitable for conveying a person with the backrest 10; 110 upright and is oriented as customary in the direction of travel. However, the vehicle seat 1 according to the invention can also be installed in a different orientation, for example transversely with respect to the direction of travel.

[0032] FIG. 1 shows a backrest 10 according to a first exemplary embodiment with an acoustic arrangement 20. The backrest 10 is for example an assembly of a vehicle seat 1 shown in FIG. 3.

[0033] The backrest 10 comprises a backrest part 11 and a head restraint part 12. The head restraint part 12 can here be held fixedly on the backrest part 11 by a head restraint support. In the present case, the head restraint supports are configured integrally with a backrest structure of the backrest part 11.

[0034] The acoustic arrangement 20 is arranged above the backrest part 11. The acoustic arrangement 20 comprises at least one central loudspeaker 21 and two side loudspeakers 22, 23.

[0035] The central loudspeaker 21 is integrated in the head restraint part 12. The two side loudspeakers 22, 23 are arranged on a support 30 which is at least partially transparent. The loudspeakers 21 to 23 can be wireless loudspeakers. Alternatively, corresponding cable lines can be guided in the support 30 or in other hollow support elements and can be connected to the loudspeakers 21 to 23.

[0036] The support 30 can be elastic and/or flexible. In particular, the support 30 can be moved, in particular can be bent and/or deformed, for example permanently bent or deformed, in the event of a mechanical stressing, for example during an adjustment movement and/or in the event of an impact by a triggered airbag. Alternatively or additionally, the support 30 can elastically yield or give way in the event of mechanical stressing.

[0037] The support 30 can be formed, for example, from a corresponding material, in particular from a polymer material, in particular a rubber-like polymer material, for example from ethylene-propylene-diene rubber (called EPDM for short), or from a spring steel. A spring steel can also be encased by a polymer material, in particular a soft polymer material. The polymer material is preferably transparent. In one possible embodiment, the acoustic arrangement 20 is arranged in the vicinity of an ear region of a user of the vehicle seat 1. Furthermore, at least one or more of the loudspeakers 22, 23 can be adjusted variably by the flexible support 30. This permits optimum positioning of the side loudspeakers 22, 23 for the user and adaptation of the position of the side loudspeakers 22, 23 to the user.

[0038] The support 30 is in the form of a bow 31. The support 30 extends, for example, above the backrest part 11 on either side laterally away from the head restraint part 12. In particular, the support 30 has two lateral bows 31 protruding laterally from the head restraint part 12.

[0039] The central loudspeaker 21 is, for example, a low-frequency loudspeaker. The central loudspeaker 21 is integrated in particular in the head restraint part 12. The central loudspeaker 21 is, for example, designed as a boxless and open loudspeaker, in particular diaphragm loudspeaker or wall-mounted loudspeaker. In particular, the central loudspeaker 21 is designed as an acoustic dipole or a baffle loudspeaker. For example, a baffle or a diaphragm is held in the head restraint part 12, in particular inside the latter on a head restraint support. The central loudspeaker 21 is arranged in the head restraint part 12 in such a manner that a directly radiating acoustic sound or an indirectly radiating acoustic sound radiates in the direction of a head support surface on the head restraint part 12.

[0040] The central loudspeaker 21 can additionally be covered in the direction of the head support surface by an open covering 40, in particular a lattice structure. The open covering 40 designed as a lattice structure can furthermore be surrounded by a cover element 50, in particular a padded cover element, or a separate padding element.

[0041] The two side loudspeakers 22, 23 are, for example, combined mid-range and tweeter loudspeakers (also called mid-range and tweeter speakers). The two side loudspeakers 22, 23 are arranged and held, for example, in a receiving opening 32, 33 of the support 30. Each of the side loudspeakers 22, 23 is preferably designed as a boxless and open loudspeaker, in particular diaphragm loudspeaker or wall-mounted loudspeaker. In particular, each of the side loudspeakers 22, 23 is designed as an acoustic dipole or a baffle loudspeaker. For example, a baffle or a diaphragm is arranged and held in the respective receiving opening 32, 33 of the support 30. The respective side loudspeaker 22, 23 is arranged in such a manner that a directly radiating acoustic sound or an indirectly radiating acoustic sound radiates in the direction of ears of the user of the vehicle seat 1. The respective side loudspeaker 22, 23 can additionally be covered in the direction of the head support surface by an open covering, in particular a lattice structure. The lattice structure can be surrounded by a cover element 50, in particular a padded cover element, or a separate padding element.

[0042] The support 30 is in particular positioned and arranged on the vehicle seat 1 in such a manner that the two side loudspeakers 32, 33 can be arranged in the ear region of the user of the vehicle seat 1. The flexible design of the support 30 enables the latter to be set or positioned and held in a manner adapted to various user heights.

[0043] FIG. 2 shows a backrest 110 of a second exemplary embodiment with an acoustic arrangement 120. The backrest 110 is, for example, an assembly of a vehicle seat 1 shown in FIG. 3.

[0044] The backrest 110 comprises a backrest part 111 and a head restraint part 112. In the present case, the head restraint part 112 is arranged in a height-adjustable manner on the backrest part 111. The head restraint part 112 can be held here on the backrest part 111 by a head restraint support, in particular in the form of head restraint rods.

[0045] The acoustic arrangement 120 is arranged above the backrest part 111. The acoustic arrangement 120 comprises at least one central loudspeaker 121. The acoustic arrangement 120 furthermore comprises two side loudspeakers 122, 123, of which only one side loudspeaker 122 is shown for illustrative reasons. The description below of the side loudspeaker 122 relates, unless explicitly described differently, likewise also to the second side loudspeaker 123, shown in FIG. 3.

[0046] The central loudspeaker 121 is integrated in the head restraint part 112. The side loudspeaker 122 is arranged on a support 130 which is designed in the form of a bow 131. The loudspeakers 121, 122 can be wireless loudspeakers. Alternatively, cable lines can be guided in the support 130 or in other hollow support elements and can be connected to the loudspeakers 121, 122.

[0047] The support 130 can be elastic and/or flexible. In particular, the support 130 can be moved, in particular bent and/or deformed, for example permanently bent or deformed, in the event of mechanical stressing, for example during an adjustment movement and/or in the event of an impact by a triggered airbag. Alternatively or additionally, the support 130 can elastically yield or give way in the event of mechanical stressing.

[0048] The support 130 is formed, for example, from a corresponding material, in particular from a polymer material, in particular a rubber-like polymer material, for example from ethylene-propylene-diene rubber (called EPDM for short), or from a spring steel. A spring steel can also be encased by a polymer material, in particular a soft polymer material. The polymer material is preferably transparent.

[0049] The acoustic arrangement 120 has a volume regulator 160 in a lateral region of the head restraint part 112 or of the support 130. The volume regulator 160 can be used to set a volume of a noise profile reproduced by the acoustic arrangement 120. The acoustic arrangement 120 is arranged in the vicinity of an ear region of a user of the vehicle seat 1. The side loudspeaker 122 can be adjustable variably by the flexible support 130. This permits optimum positioning of the side loudspeaker 122 for the user and an adaptation of the position of the side loudspeaker 122 to the user.

[0050] The support 130 extends, for example, above the backrest part 111 laterally away from the head restraint part 112. In particular, the support 130 is designed as a lateral bow 131 or wire bow to the side of the head restraint part 112. A region surrounded by the bow 131 is preferably configured to be transparent for the user of the vehicle seat 1. The user of the vehicle seat 1 is intended in particular to be able to look between the side loudspeaker 122 and the head restraint part 112 when looking over their own shoulder.

[0051] The central loudspeaker 121 is, for example, a low-frequency loudspeaker. The central loudspeaker 121 is integrated in particular in the head restraint part 112. The central loudspeaker 121 is designed, for example, as a boxless and open loudspeaker, in particular diaphragm loudspeaker or wall-mounted loudspeaker. In particular, the central loudspeaker 121 is designed as an acoustic dipole or a baffle loudspeaker. For example, a baffle or a diaphragm is held in the head restraint part 112, in particular inside the latter on a head restraint support. The central loudspeaker 121 is arranged in the head restraint part 112 in such a manner that a directly radiating acoustic sound or an indirectly radiating acoustic sound radiates in the direction of a head support surface on the head restraint part 112.

[0052] The side loudspeaker 112, in particular the two lateral loudspeakers 122, 123 are, for example, mid-range and tweeter loudspeakers (also called mid-range and tweeter speakers). The side loudspeaker 122 is arranged and held, for example, in a receiving opening 132 of the support 130. For example, the side loudspeaker 122 is designed as a boxless and open loudspeaker, in particular diaphragm loudspeaker or wall-mounted loudspeaker. In particular, the side loudspeaker 122 is designed as an acoustic dipole or a baffle loudspeaker. For example, a baffle or a diaphragm is arranged and held in the receiving opening 132 of the bow-shaped or wire-shaped support 130. The respective side loudspeaker 122 is arranged in such a manner that a directly radiating acoustic sound or an indirectly radiating acoustic sound radiates in the direction of ears of a user of the vehicle seat 1. The respective side loudspeaker 122 can additionally be covered here in the direction of the head support surface by an open covering, in particular a lattice structure.

[0053] FIG. 3 shows a vehicle seat 1 according to the invention. The vehicle seat 1 for a motor vehicle has a side part 2 and a backrest 10; 110 which is adjustable in its inclination relative to the seat part 2. The backrest 10; 110 can be mounted pivotably on the seat part 2 by a fitting in order to adjust an inclination of the backrest 10; 110. The backrest 10; 110 comprises a backrest part 11; 111 and a head restraint part 12; 112. An acoustic arrangement 20; 120 which comprises a central loudspeaker 21; 121 and at least two side loudspeakers 22, 23; 122, 123 is arranged above the backrest part 11; 111.

LIST OF REFERENCE SIGNS

[0054] 1 Vehicle seat [0055] 2 Seat part [0056] 10; 110 Backrest [0057] 11; 111 Backrest part [0058] 12; 112 Head restraint part [0059] 20; 120 Acoustic arrangement [0060] 21; 121 Central loudspeaker [0061] 22; 122 Side loudspeaker [0062] 23; 123 Side loudspeaker [0063] 30; 130 Support [0064] 31; 131 Bow [0065] 32; 132 Receiving opening [0066] 33 Receiving opening [0067] 40 Covering [0068] 50 Cover element [0069] 160 Volume regulator