Headrest and backrest for backrest

Abstract

The invention relates to a headrest (2) for a backrest (1), in particular a headrest for a vehicle seat (S), comprising at least one base body (8), a retaining rod (9) arranged on the retaining rod (9), and a supporting frame (11), the base body (8) being arranged on the retaining rod (9), the supporting frame being arranged on the retaining rod (9) and / or in the region of the base body (8), the supporting frame (11) having at least one through-opening (3), the through-opening (3) being at least partially lined with a first cover plate (13) and a second cover plate (14), wherein the first cover plate (13) and the second cover plate (14) are arranged in such a way that their cover plate ends (24, 24A, 24B) are arranged inside the through-opening (3). The invention also relates to a backrest (1) with such a headrest (2).

Description

Technical Field

[0001] The invention relates to a headrest, which is arranged in particular on at least one retaining rod in a vehicle seat backrest, wherein a base body can be arranged on the retaining rod. In addition, the invention also relates to a backrest with such a headrest. Background Art

[0002] EP 2 154 020 B1 discloses a headrest, the base body of which is provided with a recess which is at least partially lined with a cover plate.

[0003] The prior art discloses some backrests with openings. For example, these openings are provided for the passage of safety belts and / or for ventilation and / or as decorative elements. In order to meet safety requirements, it is necessary to pay attention to the sharp edges of the opening lining. Summary of the invention

[0004] The object of the present invention is to provide a headrest which is improved compared to the prior art and which has an improved contour, in particular with regard to safety requirements. Another object of the present invention is to provide a backrest which is improved compared to the prior art and which has an improved contour with regard to comfort requirements and safety requirements, having such a backrest.

[0005] With regard to the headrest, this object is achieved according to the invention by the features of preferred embodiments. With regard to the backrest, this object is achieved according to the invention by the features of preferred embodiments.

[0006] According to the invention, the object is achieved by a headrest having a base and at least one retaining rod on which the base can be arranged or is arranged, and at least one supporting frame is provided, which is designed in such a way and can be arranged or is arranged on the retaining rod and / or in the area of ​​the base, for example on the base and / or in the base, so that a through opening is formed, which is at least partially lined with a first cover plate and a second cover plate.

[0007] In particular, the supporting frame has a through-opening extending in the longitudinal extension direction of the headrest.

[0008] For example, the through-opening is provided for the passage of a safety belt. By means of the cover plate, the through-opening and thus in particular the headrest, the backrest of the vehicle seat can be visually upgraded or enhanced.

[0009] The panels can have different decorative elements, ornamental elements, colors, patterns and / or coatings. The through-openings are provided, for example, for ventilation of vehicle seats. By means of the panels, in particular their shape and / or size, for example, the air circulation through the through-openings can be improved for temperature control.

[0010] Furthermore, the guard plate has guard plate ends, which point, for example, in the direction of the occupant and / or in the direction of an occupant sitting behind a respective vehicle seat, which are rounded and / or chamfered so that they comply with safety regulations and safety standards, for example, the ECE R17 standard. The open ends of the support frame are also rounded and / or chamfered so that they comply with safety regulations and safety standards, for example, the ECE R17 standard.

[0011] Furthermore, these cover plates are designed as aesthetic covers for visually improving the vehicle seat and the supporting frame. The vehicle seat is, for example, a sports seat.

[0012] In another embodiment, the supporting frame is arranged in the base body. For example, the supporting frame is arranged in the base body so that the supporting frame extends through the base body. The base body is configured, for example, as a headrest that is integrated or can be integrated into the backrest.

[0013] In another embodiment, the supporting frame is arranged, for example, below the base body, on the end of the holding rod. For example, the holding rod is designed as a U-shaped profile.

[0014] In another embodiment, the supporting frame is arranged on the underside of the base body. For example, the supporting frame is detachably or non-detachably fastened to the underside of the base body. For example, the supporting frame is integrated or can be integrated into the upper backrest region. For example, the supporting frame is arranged or can be arranged in the neck region and / or shoulder region of the backrest and / or in a headrest formed integrally with the backrest. Alternatively, the headrest has a headrest cushion which is designed to completely accommodate the base body and the supporting frame.

[0015] The dimensions and / or shape of the supporting frame correspond, for example, to the dimensions and / or shape of the base body and / or the backrest.

[0016] In another embodiment, the supporting frame is arranged between two, in particular parallel opposite, rod ends of the holding rod, wherein the through-opening extends between the rod ends of the holding rod. For example, the through-opening extends substantially perpendicularly to the rod ends.

[0017] In another embodiment, the supporting frame is arranged in the region of the base body, for example on and / or in the base body, so that the through-opening extends in the longitudinal extension direction of the base body. For example, the through-opening extends through the entire cross-section of the base body and / or between the two rod ends of the retaining rod. For example, the through-opening extends between two outer surfaces of the base body, for example support surfaces. For example, the through-opening extends between two outer surfaces of the headrest and / or backrest, for example support surfaces.

[0018] In one embodiment, the supporting frame has at least one dimension which is larger in the longitudinal extension direction of the base body. For example, at least one open end of the supporting frame protrudes beyond the outer surface of the base body, the headrest and / or the backrest.

[0019] The headrest and / or the backrest therefore have a through opening extending through its entire cross section, in particular in the longitudinal direction from front to rear, so that a person can look through the headrest and / or the backrest.

[0020] Here, the first guard plate and the second guard plate are arranged in the through-opening so that their guard plate ends are arranged within the through-opening. In particular, these guard plate ends are at a certain distance from the opening end of the through-opening.

[0021] Furthermore, the through-opening has an opening edge at its opening end with a radius equal to or greater than 2.5 millimeters, in particular 5 millimeters. According to the ECE R17 standard, the radius of the components located in the headrest area must be equal to or greater than 2.5 millimeters. For example, for aesthetic reasons, the radius of the guard plate is less than 2.5 millimeters. However, in order to meet the requirements of the ECE R17 standard, an additional and independent supporting frame is provided. The supporting frame can prevent contact and / or touching on the ends of the guard plate that are visible, in particular arranged in the area of ​​the opening end of the through-opening. For example, such a contact point and / or touch point is determined by a ball with a diameter of 165 millimeters.

[0022] In contrast, the casing can have a casing edge with a smaller radius at its casing end.

[0023] The panels are made in particular of plastic. The supporting frame is made in particular of plastic.

[0024] In another embodiment, at least one guard plate has a guard plate body having at least one groove. For example, the groove is a through opening. For example, the at least one guard plate is configured as a guard plate frame.

[0025] In another embodiment, the guard plates are substantially identical.

[0026] In another embodiment, a first guard plate end of the guard plate body of the at least one guard plate has a larger circumference than a second guard plate end of the same guard plate body. For example, the guard plate body is configured as a cone. For example, the shape of the guard plate body is substantially conical.

[0027] In one possible embodiment, at least one cover plate is connected to the supporting frame and / or the basic body, in particular in a snap-fitting manner.

[0028] According to another embodiment, one of the two cover plates is connected to the other cover plate, in particular in a latching manner. For example, the cover plates, which are in particular connected to each other in a latching manner, are arranged in the middle region of the through-opening as viewed in the direction of the longitudinal expansion.

[0029] For example, before two cover plates are connected to one another, for example in a snap-fitting manner, the two cover plates are partially pushed into one another. For example, one cover plate is at least partially pushed into the other cover plate. Furthermore, the two cover plates can be arranged abuttingly. This makes it very easy to compensate for manufacturing tolerances. Furthermore, the cover plates are suitable for through-openings or recesses of various shapes.

[0030] Headrest of the present invention has cushions usually, for example on all sides, and these cushions are covered by covers again.For example, the cover is fixed at least partially in the groove or the through-opening.

[0031] According to another embodiment of the present invention, the sleeve is at least partially arranged on one of the two guard plates. For example, this can be achieved by form fit, force fit and / or material fit.

[0032] According to another embodiment, the sleeve is arranged on the base body.

[0033] For example, the base body at least partially surrounds the holding rod. In particular, during the casting, injection molding or injection molding process of the base body, the holding rod is for example at least partially surrounded by the material of the base body.

[0034] The advantages achieved with the invention are in particular that such a headrest with a supporting frame has an inner cover plate in the region of the through-opening, the rounded outer contour of which meets the safety requirements of the ECE R17 standard.

[0035] The backrest according to the invention for a seat, in particular a vehicle seat, comprises at least one supporting structure and a headrest arranged on the supporting structure according to the above description.

[0036] In another embodiment, the supporting frame is arranged between the upper end of the supporting structure and the lower end of the basic body.

[0037] A seat, in particular a vehicle seat, can provide seating for one or more persons. Thus, the vehicle seat can also be a bench seat. A headrest is fastened to the backrest of the vehicle seat, for example in an adjustably manner, via a retaining rod. For example, the headrest and the backrest together form a continuous outer surface, in particular a support surface, for the occupant. The rear side of the backrest with such a headrest also has a continuous outer surface, wherein the through-opening extends through the entire cross section between the outer surfaces so that a person can look through the headrest and / or the backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Embodiments of the present invention are explained in detail with the aid of the accompanying drawings. In the accompanying drawings:

[0039] Figure 1 A front view of a vehicle seat is shown, which has a headrest and a through-opening in the region of the headrest and the backrest;

[0040] Figure 2 showing a side view of a vehicle seat;

[0041] Figure 3 An embodiment of a load-bearing structure for a vehicle seat is shown in a perspective view and in a partially sectional view;

[0042] Figure 4 A vertical cross-sectional view showing a through opening of a headrest;

[0043] Figure 5 A carrier frame and two cover plates for the through-opening are shown in the assembled state; and

[0044] Figure 6 Shown is a front view of a vehicle seat with a headrest and a through-opening.

[0045] In all the Figures, parts that correspond to one another are provided with the same reference symbols. DETAILED DESCRIPTION

[0046] The following describes the situation using three mutually perpendicular spatial directions. Figure 1 Schematically illustrated vehicle seat S in FIG. 1 . When the vehicle seat S is installed in a vehicle, the longitudinal direction X extends substantially horizontally and, for example, parallel to the vehicle longitudinal direction, which corresponds to the normal driving direction of the vehicle. The transverse direction Y, which is perpendicular to the longitudinal direction X, is also oriented horizontally in the vehicle and parallel to the vehicle transverse direction. The vertical direction Z is perpendicular to the longitudinal direction X and perpendicular to the transverse direction Y. When the vehicle seat S is installed in a vehicle, the vertical direction Z is, for example, parallel to the vehicle vertical axis.

[0047] The position and direction indicators used, such as front, rear, top and bottom, refer to the viewing direction of an occupant in a normal sitting position sitting in the vehicle seat S, wherein the vehicle seat S is installed in a vehicle, in a use position suitable for passenger transportation, with the backrest 1 upright and oriented in the direction of travel as usual. However, the vehicle seat S can also be installed or moved in a different orientation, for example transversely to the direction of travel.

[0048] Figure 1 Shown is a front view of a vehicle seat S. The vehicle seat S comprises a backrest 1 and a headrest 2 arranged on the backrest 1 . In the region of the headrest 2 , the vehicle seat S comprises a through-opening 3 .

[0049] The vehicle seat S, in particular the backrest 1 and the headrest 2, usually has, for example, a cushion 4 on all sides. The cushion 4 can in turn be covered by a cover 5. For example, the cover 5 is at least partially fixed in the through-opening 3.

[0050] Furthermore, the vehicle seat S comprises a support structure 7 (indicated by dashed lines) for the backrest 1 and the headrest 2 , in particular a profile frame structure and / or a rod structure.

[0051] Figure 2 A side view of a vehicle seat S is shown. The through-opening 3 extends in the longitudinal direction X of the headrest 2 from front to rear through the entire cross section, so that a person can look through the headrest 2 .

[0052] Furthermore, the vehicle seat S comprises a seat part 6 , on which the backrest 1 is arranged, in particular rotatably arranged.

[0053] like Figure 3 As shown, a supporting frame 11 for providing or forming a through opening 3 extends through the cushion 4. For example, the through opening 3 extends from a rear outer side 1.1, for example the rear side, to a front outer side 1.2, for example the support surface side for the occupant.

[0054] Figure 3 An embodiment of a support structure 7 for a vehicle seat S is shown in a perspective view and in a partially exploded view.

[0055] The headrest 2 of the present invention comprises a base body 8 and at least one holding rod 9. The holding rod 9 can be designed as a U-shaped bracket with two rod ends 10, or as two independent holding rods 9.

[0056] The base body 8 is arranged on a holding rod 9 .

[0057] Furthermore, the headrest 2 comprises at least one supporting frame 11 which can be arranged on the retaining rod 9 and / or on the base body 8 . In the exemplary embodiment, the supporting frame 11 is arranged on the retaining rod 9 between the rod ends 10 .

[0058] In particular, the supporting frame 11 is designed and can be arranged on the holding rod 9 and / or the basic body 8 in such a way that the through-opening 3 of the head restraint 2 is formed.

[0059] The supporting frame 11 is designed as a hollow profile or hollow body with a hollow space 12, which forms the through-opening 3. If the supporting frame 11 is arranged in a recess (not shown) in the base body 8 and / or between the two rod ends 10 of the retaining rod 9, the hollow space 12 extends through the entire cross section of the headrest 2, in particular through its base body 8.

[0060] For example, the supporting frame 11 is made of plastic.

[0061] The supporting frame 11 , in particular its hollow space 12 , is at least partially lined with a first casing 13 and a second casing 14 .

[0062] The through-opening 3 of the headrest 2 therefore extends through the entire cross section of the headrest 2 and is at least partially lined by means of the two cover plates 13 and 14 .

[0063] The two cover plates 13 , 14 are made, in particular, of plastic.

[0064] The guard plates 13, 14 each have a guard plate body 13.1, 14.1. For example, the guard plate body 13.1, 14.1 is each in the form of a guard plate frame with a continuous groove 13.2, 14.2. The groove 13.2, 14.2 is, for example, a through opening.

[0065] The guard bodies 13.1, 14.1 are conically shaped. Each guard body 13.1, 14.1 comprises a first guard end 24, 24A and a second guard end 24, 24B. The respective first guard end 24, 24A is visibly arranged on the supporting frame 11, in particular on the opening end 25 of the through-opening 3. Figure 4 As shown, the respective second sheet metal cover end 24 , 24B is arranged inside the supporting frame 11 , in particular the through-opening 3 , in particular in a substantially central region MB thereof.

[0066] The respective first panel ends 24, 24A of the panel bodies 13.1, 14.1 are larger in circumference than the respective second panel ends 24, 24B of the panel bodies 13.1, 14.1.

[0067] In one possible embodiment, at least one of the cover plates 13 is connected to the supporting frame 11 in a particularly locking manner. To this end, the first cover plate 13 has corresponding first locking elements 15, in particular locking projections, which in the assembled state cooperate in a locking manner with corresponding second locking elements 16, in particular locking tongues, of the supporting frame 11.

[0068] In the exemplary embodiment, pairs of first and second latching elements 15 , 16 are provided at the top and bottom on the inner side of the supporting frame 11 and on the outer side of the first casing 13 .

[0069] In addition, the second guard plate 14 is connected, in particular in a latching manner, to the first guard plate 13. For this purpose, the second guard plate 14 has, for example, a third latch element 17 on its outer side, which in the assembled state cooperates with a corresponding fourth latch element 18, in particular a latch opening, in a latching manner.

[0070] The guard plates 13.1, 14.1 are connected to each other inside the supporting frame 11, in particular inside the through opening 3. For example, Figure 4As shown, the inner second trim ends 24B are each connected to one another via a plug connection 30. In particular, the trim body 13.1, 14.1 of one of the trims 13, 14 is pushed, in particular inserted, into the other trim body 13.1, 14.1 of the other trim 13, 14. In the connected state of the trim bodies 13.1, 14.1, the grooves 13.2, 14.2 are connected to one another in such a way that they form a continuous opening, in particular a through opening 3. The grooves 13.2, 14.2 connected to one another extend through the entire cross section of the headrest 2 and / or the backrest 1.

[0071] In order to fix the supporting frame 11 on the holding rod 9, a fixing element 19 is arranged laterally in the supporting frame 11. In order to avoid sharp edges, a fixing cap 20 is provided, which is arranged between the supporting frame 11 and the head of the fixing element 19. The fixing cap 20 has a rounded brim 21 facing away from the supporting frame 11 and standing up from the supporting frame 11. The brim 21 has a protruding height, which is higher than the height of the head of the fixing element 19. The radius of the rounded brim 21 is equal to or greater than 2.5 mm, in particular, the radius is 5 mm.

[0072] Additionally, the first guard plate 13 may further include a groove 22 for receiving and clamping a functional element 23 such as letters or a light source.

[0073] Figure 4 A vertical section through the through-opening 3 of the headrest 2 is shown.

[0074] The through-opening 3 extends through the entire cross section of the supporting frame 11 and therefore also through the entire cross section of the headrest 2 .

[0075] Therefore, the headrest 2 has a continuous opening so that a person can see through the headrest 2 .

[0076] Here, the first cover plate 13 and the second cover plate 14 are arranged in the through-opening 3, in particular in the hollow space 12 of the supporting frame 11, so that their cover plate ends 24 are arranged inside the hollow space 12 of the supporting frame 11 and thus also inside the through-opening 3. In particular, the cover plate ends 24 of the two cover plates 13, 14 are arranged at a certain distance from the through-opening 3, in particular the opening end 25 of the hollow space 12.

[0077] Furthermore, the through-opening 3 , in particular the hollow space 12 , has at its opening end 25 a rounded opening edge 26 with a radius equal to or greater than 2.5 mm, in particular 5 mm.

[0078] Such rounded opening edges 26 in the headrest region therefore comply in particular with the ECE R17 standard, according to which components located in the headrest region, if they can be contacted with a ball with a diameter of 165 mm, should have a radius equal to or greater than 2.5 mm (energy dissipation test required) or better still 5 mm (energy dissipation test not required). Seat components with a hardness of less than 50 Shore-A (such as foam and trim strips) are not considered in this assessment.

[0079] In order to meet the test requirements of the radius, the present invention provides a load-bearing frame 11, which can prevent a ball with a diameter of 165 mm from contacting the inner guard plates 13, 14 during the test. The load-bearing frame 11 provides the required radius greater than 2.5 mm at all places where a 165 mm ball can contact.

[0080] In contrast, the casing panels 13 , 14 which are offset inwards and arranged and fixed in the supporting frame 11 can have casing panel edges with a smaller radius at their casing panel ends 24 .

[0081] The distance between the guard plate 24, 24A and the opening end 25 and / or the rounded opening edge 26 is selected so that, for example, the impact area formed by the head restraint in the event of an accident complies with safety standards, in particular the provisions of ECE R17. In the event of an accident, direct contact of the head with the guard plate 24, 24A is avoided as far as possible.

[0082] For example, the two guard plates 13, 14 are partially pushed into each other before forming, for example, a snap-on connection. In addition, the two guard plates 13, 14 can be arranged in abutment. This makes it easy to compensate for manufacturing tolerances. In addition, the guard plates 13, 14 are suitable for through-openings or recesses of various shapes.

[0083] According to another embodiment of the invention, the cover 5 is at least partially arranged on one of the two cover plates 13, 14. This can be done, for example, by a form fit, a force fit and / or a material fit.

[0084] The supporting frame 11 and / or the shell panels 13 , 14 can additionally be provided with reinforcement elements 27 , in particular longitudinal ribs or transverse ribs.

[0085] The supporting frame 11 is designed as a hollow body, in particular as a hollow profile. The opening edge 26 has a larger circumference than the hollow profile base of the supporting frame 11. The opening edge 26 is arranged at the end of the hollow profile base, for example, at the opening end 25 of the supporting frame 11. The opening edge 26 is connected to the end of the hollow profile base, for example, the opening end 25 of the supporting frame 11, for example, in a material fit, force fit and / or form fit manner. Alternatively, the hollow profile base is formed in one piece with the opening edge 26. The opening edge 26 forms, for example, an angled end of the hollow profile base, in particular an outwardly angled end, for example, an outwardly angled opening end 25 of the supporting frame 11. Here, outward means a direction away from the through-opening 13, for example in the direction of the vehicle interior. The opening edge 26 is formed, for example, in a form that protrudes outward, in particular protrudes.

[0086] Figure 5 The supporting frame 11 and the two cover plates 13 , 14 for the through-opening 3 of the headrest 2 are shown in the assembled state.

[0087] Figure 6 A front view of a vehicle seat S is shown with a headrest 2 and a through opening 3. The headrest 2 has a cushion 4. The headrest 2 is fixed to the backrest 1, in particular to a supporting structure 7 of the backrest 1, by means of retaining rods 9. The headrest 2 comprises, for example, a base body 8 and a supporting frame 11. The supporting frame 11 is surrounded by the cushion 4 together with the base body 8. The supporting frame 11 has a through opening 3, which is at least partially lined with a first cover plate 13 and a second cover plate 14.

[0088] In the exemplary embodiment shown, the supporting frame 11 is arranged, for example, in the base body 8 of the headrest 2 or beneath the base body 8 .

[0089] List of Reference Numerals

[0090] 1 Backrest

[0091] 1.1,1.2 Outer side

[0092] 2 Headrests

[0093] 3 Through opening

[0094] 4 Cushions

[0095] 5 sets

[0096] 6 Seat components

[0097] 7 Load-bearing structure

[0098] 8 Matrix

[0099] 9 Retention rod

[0100] 10 Rod end

[0101] 11 Loading frame

[0102] 12 Hollow Space

[0103] 13 First guard plate

[0104] 13.1 Guard body

[0105] 13.2 Grooves

[0106] 14 Second guard plate

[0107] 14.1 Guard body

[0108] 14.2 Grooves

[0109] 15 First locking element

[0110] 16 Second locking element

[0111] 17 Third locking element

[0112] 18 Fourth locking element

[0113] 19 Fixing elements

[0114] 20 Fixed cap

[0115] 21 Rounded brim

[0116] 22 grooves

[0117] 23 Functional elements

[0118] 24,24A,24B Guard plate end

[0119] 25 Open end

[0120] 26 Opening edge

[0121] 27 Reinforcement elements

[0122] 30 Plug connection

[0123] MB Middle Area

[0124] S Vehicle Seat

[0125] X vertical direction

[0126] Y horizontal direction

[0127] Z The vertical direction.

Claims

1. A headrest (2) for a seat backrest (1), comprising at least - a substrate (8); - a holding rod (9) on which the base body (8) is arranged; and a supporting frame (11) which is arranged on the retaining rod (9) and / or in the region of the base body (8), in, The supporting frame (11) has at least one through opening (3), which is at least partially lined with a first guard plate (13) and a second guard plate (14), wherein the first guard plate (13) and the second guard plate (14) are arranged in the through opening (3) so that their guard plate ends (24, 24A, 24B) are arranged inside the through opening (3).

2. The headrest (2) according to claim 1, wherein: The supporting frame (11) is arranged between the two rod ends (10) of the retaining rod (9), and the through-opening (3) extends between the rod ends (10) of the retaining rod (9).

3. The headrest (2) according to claim 1 or 2, wherein: The supporting frame (11) is arranged in the base body (8) such that the through-opening (3) extends in the longitudinal extension direction of the base body (8).

4. A headrest (2) according to claim 1 or 2, wherein: At least one of the guard plates (13, 14) comprises a guard plate body (13.1, 14.1) with a groove (13.2, 14.2).

5. A headrest (2) according to claim 4, wherein: Compared to a second guard plate end (24, 24B) of the guard plate body (13.1, 14.1), a first guard plate end (24, 24A) of the guard plate body (13.1, 14.1) has a larger circumference.

6. A headrest (2) according to claim 4, wherein: The casing body (13.1, 14.1) is conically designed.

7. A headrest (2) according to claim 1 or 2, wherein: The guard plate end (24, 24A) is arranged at a distance from the opening end (25) of the through-opening (3).

8. The headrest (2) according to claim 6, wherein: The through opening (3) has a rounded opening edge (26) at its opening end (25), and the radius of the opening edge is equal to or greater than 2.5 mm.

9. A headrest (2) according to claim 1 or 2, wherein: At least one of the guard plates (13, 14) is connected to the supporting frame (11), and the guard plates (13, 14) are connected to each other.

10. A headrest (2) according to claim 1 or 2, wherein: The first guard plate (13) has a first locking element (15), which cooperates with a corresponding second locking element (16) of the supporting frame (11) in a locking manner in an assembled state.

11. A headrest (2) according to claim 1 or 2, wherein: The second cover plate (14) has a third locking element (17) on its outer side, which cooperates with a corresponding fourth locking element (18) of the first cover plate (13) in a locking manner in the assembled state.

12. A headrest (2) according to claim 1 or 2, wherein: The first cover plate (13) additionally comprises a recess (22) for receiving and clamping the functional element (23).

13. A headrest (2) according to claim 1 or 2, wherein: In the connected state of the cover bodies (13.1, 14.1), the grooves (13.2, 14.2) are connected to each other so that they form a continuous opening.

14. A headrest (2) according to claim 1 or 2, wherein: The seat is a vehicle seat (S).

15. The headrest (2) according to claim 8, wherein: The radius of the opening edge is 5 mm.

16. The headrest (2) according to claim 9, wherein: At least one of the guard plates (13, 14) is connected to the supporting frame (11) in a locking manner.

17. The headrest (2) according to claim 9, wherein: The cover plates (13, 14) are connected to each other in a latching manner.

18. The headrest (2) according to claim 12, wherein: The functional element (23) is a letter or a lighting device.

19. The headrest (2) according to claim 3, wherein: The supporting frame (11) is arranged in the base body (8) such that the through opening (3) extends through the entire cross section of the base body (8).

20. A backrest (1) for a seat, comprising at least one supporting structure (7) and a headrest (2) according to one of the preceding claims 1 to 19, arranged on the supporting structure (7).

21. The backrest (1) according to claim 20, wherein: The supporting frame (11) is arranged between the upper end of the supporting structure (7) and the lower end of the base (8).

22. Backrest (1) according to claim 21, wherein The seat is a vehicle seat(S).

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