DE102022103908A1 - Bucket seat for a motor vehicle - Google Patents

Abstract

A shell seat (2) for a motor vehicle is specified, which has a seat shell (4) with a seat surface (6) and a backrest (8) arranged on the seat surface (6), and a backrest (8) at one end (10) of the backrest (8 ) arranged neck support (12). An essentially U-shaped head protection part (14) is arranged on the neck support (12) or the backrest (8) in such a way that a first leg (16a) of the head protection part (14) is on a first side (18a) of the neck support (12 ) is arranged and a second leg (16b) of the head protection part (14) is arranged on a second side (18b) of the neck support (12). The head protection part (14) is or can be arranged reversibly on the neck support (12) or on the backrest (8) by means of only two first fastening elements (20).

Description

The invention relates to a bucket seat for a motor vehicle and a motor vehicle.

Bucket seats are now widespread or even mandatory in motor vehicles, especially in sports cars and motorsport vehicles. Bucket seats are therefore not only characterized by their low weight compared to conventional car seats, but also offer the driver increased protection thanks to their stable construction.

This protection is also achieved in particular in that the driver, as already indicated by the name of the seat type, sits in a kind of shell and the seat thus at least partially surrounds the driver.

In order to prevent the driver's head from being thrown to the side in the direction of travel in the event of an accident, bucket seats usually have headrests with legs, the legs being colloquially referred to as “ears”. Viewed in the direction of travel, one leg extends forwards to the left and right at head height (in the direction of the windshield) and thus partially encloses the driver's head. In the event of an accident, the driver's head is then stopped by the leg or legs of the headrest and is not thrown any further in the respective lateral direction. This avoids severe injuries to the cervical spine.

However, such "ear bucket seats" are only permitted in motor sports, as they make it difficult or even impossible to look over your shoulder when turning on public roads. Therefore, this type of bucket seat is not an option, especially for street-legal sports cars.

Nevertheless, bucket seats of this type offer a higher degree of safety, particularly on track days, the so-called free driving on racetracks.

Proceeding from this, the invention is based on the object of specifying a bucket seat that offers a high degree of safety, is easy to adjust and at the same time can be used on public roads.

The object is achieved according to the invention by a shell seat for a motor vehicle with the features of claim 1. Advantageous refinements, developments and variants are the subject matter of the dependent claims.

Specifically, the task related to the shell seat is achieved by a shell seat for a motor vehicle, the shell seat having a seat shell with a seat surface. The seat shell with the seat surface can be the part of the seat on which a driver sits.

Furthermore, the bucket seat has a backrest arranged on the seat surface and a neck support arranged at one end of the backrest. An essentially U-shaped head protection part is arranged on the neck support or the backrest in such a way that a first leg of the head protection part is arranged on a first side of the neck support and a second leg of the head protection part is arranged on a second side of the neck support. In other words, the two legs thus form the ears mentioned at the outset, one of which is arranged on the left and one on the right (viewed in the direction of travel) of the neck support. Accordingly, the first side corresponds, for example, to the left side of the neck support and the second side to the right side of the neck support, or vice versa.

Furthermore, the head protection part is or can be arranged reversibly on the neck support or on the backrest by means of only two first fastening elements.

For the purposes of this application, the term “reversibly arrange” can be understood to mean that the head protection part can be removed from the bucket seat without great effort, e.g. within a few minutes, and without damaging it, so that the bucket seat can then be used on public roads and also approved. Furthermore, in this context, the term "arrange reversibly" can also be understood to mean that the head protection part is simply attached to the bucket seat and in particular to the backrest or the neck support when driving on a closed-off route to increase the safety of the driver can.

By arranging and fixing the head protection part by means of only two first fastening elements, a simple and low-effort arrangement and dismantling of the headrest part is also achieved. In addition, the two first fastening elements are preferably arranged in a plane that extends orthogonally to a direction of extension of the backrest. In other words, the first two fastening elements are arranged next to one another in a horizontal plane, with the result that a twisting occurs as a result hen or tilting of the head protection part is prevented in the assembled state.

According to one embodiment, the head protection part is designed in one piece with the two legs, that is to say monolithically. This means that the head protection part and the two legs are a single, common component that is arranged on the backrest or the neckrest. This simplifies the structure of the headrest part in comparison to known headrests in which the legs are designed as separate components.

According to a preferred embodiment, the legs each have a stiffening element, with the stiffening element being arranged on or in the backrest when the head protection part is in the assembled state. The stiffening element ensures additional stiffening and protection against twisting of the mounted head protection part. In the mounted state, the head protection part (relative to a shell seat mounted in a motor vehicle) can thus tilt or twist neither in the direction of the vehicle roof or floor nor in the direction of the front or the rear of the vehicle.

In a further development, the stiffening element of each leg is arranged on or in the backrest in the manner of a tongue and groove connection. This means that, for example, the part of the backrest on or in which the stiffening element is arranged has a groove into which a counterpart of the stiffening element designed as a spring is arranged, in particular pushed in, or vice versa. Thus, on the one hand, the stiffening element is arranged firmly enough on or in the backrest to offer the desired level of safety. On the other hand, the connection can be formed and, in particular, detached in a simple enough manner in order to give the seat the double functionality already described in a simple manner.

In a further embodiment, the head protection part can be arranged without tools on the backrest or the neck support. In the context of this application, the term “can be arranged without tools” can be understood to mean that the head protection part can be fitted and removed without tools, ie with the driver's bare hands, on the backrest or the neck support using the fastening elements. This greatly simplifies the functioning of the removable head protection part, since no tools are required that would also have to be carried in the vehicle.

In order to further increase the safety of the driver and to make the shell seat compatible, in particular for multi-point belts, e.g. 5 or 6-point belts, belt passage openings are formed when the head protection part is in the arranged state. The seat belt openings are delimited by the backrest, the neck support and the thighs. The belt passage openings are thus delimited in particular on the sides of the shell seat by the legs, so that while driving the belt routed through the belt passage openings cannot slip to the side or endanger or injure the driver in the event of an accident by slipping.

According to one embodiment, the two first fastening elements are designed as screw elements. Due to the design as screw elements, the first fastening elements have a high fastening effect on the one hand and, on the other hand, they can be detached more easily and in particular in a reusable manner, for example compared to rivets.

In one embodiment, the seat shell and the backrest and the neck support as well as the head protection part are made of a fiber-reinforced plastic, in particular a carbon-fiber-reinforced plastic. Carbon fiber reinforced plastics, also known as carbon, have proven to be particularly suitable in the construction of sports cars because they are light and offer high strength and thus safety for the driver. The entire bucket seat, with the exception of the head protection part, is preferably designed or manufactured in one piece, that is to say monolithically as a so-called full bucket seat. The seat shell, the backrest and the neck support are then manufactured as a common component.

In an alternative or supplementary embodiment, the seat surface, in particular the side of the seat surface facing the driver, has second fastening elements, by means of which the bucket seat is arranged on the motor vehicle and its inclination can be adjusted. This embodiment takes into account the fact that hitherto known bucket seats are usually screwed to the side of the motor vehicle on so-called consoles and can also be adjusted in a forward and backward inclination. For this purpose, the inclination of the seat is usually adjusted and fixed using screws in various holes in the console. This has the disadvantage that the screw on the side of the console and the seat facing the respective vehicle door is easily accessible. However, the screw on the opposite side, i.e. on the side of the center tunnel, is usually only possible after a complex removal of the entire seat including the console. Due to the second fastening elements in the seat surface of the bucket seat, the bucket seat no longer has to be removed to adjust the inclination. It is sufficient here, for example, to remove a seat cushion arranged on the seat surface, to loosen the second fastening elements and, after adjusting the inclination, to fasten the second fastening elements again. The second fastening elements are also preferably designed as screw elements.

In order to offer the driver sufficient comfort, at least one seat cushion is arranged on a side of the seat surface facing the driver and on a side of the backrest facing the driver.

• 1a: eine perspektivische Ansicht eines erfindungsgemäßen Schalensitzes mit angeordnetem Kopfschutzteil;
• 1b: eine Vorderansicht des erfindungsgemäßen Schalensitzes gemäß 1a;
• 1c: eine Rückansicht des erfindungsgemäßen Schalensitzes gemäß 1a;
• 2a: eine perspektivische Ansicht des erfindungsgemäßen Schalensitzes ohne angeordnetes Kopfschutzteil;
• 2b: eine Vorderansicht des erfindungsgemäßen Schalensitzes gemäß 2a sowie
• 2c: eine Rückansicht des erfindungsgemäßen Schalensitzes gemäß 2a.

An exemplary embodiment of the invention is explained in more detail below with reference to the figures. These show in a partially greatly simplified representation:

• 1a : a perspective view of a bucket seat according to the invention with a head protection part arranged;
• 1b : a front view of the bucket seat according to the invention 1a ;
• 1c : a rear view of the bucket seat according to the invention 1a ;
• 2a : a perspective view of the shell seat according to the invention without the head protection part arranged;
• 2 B : a front view of the bucket seat according to the invention 2a as well as
• 2c : a rear view of the bucket seat according to the invention 2a .

Components with the same effect are always shown with the same reference symbols in the figures.

The in the 1a , 1b 1c and 1c for a motor vehicle, not shown, has a seat shell 4, which has a seat surface 6 with a backrest 8 arranged thereon. A neck support 12 is arranged at one end 10 of the backrest 8 .

The bucket seat 2 according to 1a , 1b and 1c is designed as a full carbon bucket seat. Consequently, the seat shell 4, the backrest 8 and the neck support 12 are designed as a common component.

A substantially U-shaped head protection part 14 is arranged on the neck support 12 . A first leg 16a of the head protection part 14 is here arranged on a first side 18a of the neck support 12 . Consequently, a second leg 16b of the head protection part 14 is arranged on a second side 18b of the neck support 12 . The term "arranged" can be understood in this sense that the two legs 16a, 16b on the respective side 18a, 18b are directed forward, ie in the direction of the dashboard of the motor vehicle, not shown.

The head protection part 14 is arranged reversibly on the neck support 12 by means of only two first fastening elements 20 shown schematically. To form the reversible arrangement, the first fastening elements 20 are designed as screws, which are screwed from the front, i.e. the side of the shell seat 2 facing the driver, below the illustrated head cushion into the neck support 12 and into the head protection part 14 in order to mount the head protection part 14 .

Furthermore, the legs 16a, 16b each have a stiffening element 22, which is shown only schematically in the figures, through which the legs 16a, 16b are arranged on or in the backrest 8 when the head protection part 14 is in the assembled state. Preferably, the legs 16a, 16b are arranged on or in a shoulder part 24 of the backrest 8 in order to ensure additional reinforcement and anti-twist protection of the head protection part 14.

Furthermore, in the assembled state of the head protection part 14, belt passage openings 26 are formed, which are delimited by parts of the legs 16a, 16b, the neck support 12 and the backrest 8.

The bucket seat 2 also has second fastening elements 28, only one of which is shown in the figures. The second fastening elements 28 are arranged in the seat surface 6 in order to adjust an inclination of the seat. The second fastening elements 28 are also designed as screw elements.

The bucket seat 2 as in the 1a , 1b and 1c, with the head protection part 14 in place, is suitable for driving on racetracks. The legs 16a, 16b serve to provide increased protection for the head of the driver or front passenger when the bucket seat 2 is installed in the motor vehicle as a front passenger seat.

In the 2a , 2 B and 2c, the bucket seat 2 is shown without the head protection part 14 installed. Except for this change, the bucket seat corresponds to 2 according to 2 the bucket seat 2 described above from the 1a , 1b as well as 1c.

With the head protection part 14 not arranged, the bucket seat 2 is on public roads used because the legs 16a, 16b of the head protection part 14 do not restrict the lateral view.

The invention is not limited to the embodiment described above. On the contrary, other variants of the invention can also be derived from this by a person skilled in the art without departing from the subject matter of the invention. In particular, all of the individual features described in connection with the exemplary embodiment can also be combined with one another in other ways without departing from the subject matter of the invention.

Reference List

2

bucket seat

4

seat shell

6

seat

8th

backrest

10

end of the backrest

12

neck support

14

head protection part

16a, 16b

leg of the head protection part

18a, 18b

sides of the neck brace

20

first fastener

22

stiffening element

24

shoulder part

26

seat belt opening

28

second fastener

Claims (10)

Bucket seat (2) for a motor vehicle, comprising: - A seat shell (4) with a seat (6) and a backrest (8) arranged on the seat (6), and - a neck support (12) arranged at one end (10) of the backrest (8), on the neck support (12) or the backrest (8) an essentially U-shaped head protection part (14) is arranged in such a way that a first leg (16a) of the head protection part (14) on a first side (18a) of the neck support ( 12) and a second leg (16b) of the head protection part (14) is arranged on a second side (18b) of the neck support (12), wherein the head protection part (14) is or can be arranged reversibly on the neck support (12) or on the backrest (8) by means of only two first fastening elements (20). Bucket seat (2) after claim 1 , wherein the head protection part (14) with the two legs (16a, 16b) is formed in one piece. Bucket seat (2) after claim 1 or 2 wherein the legs (16a, 16b) each have a stiffening element (22), the stiffening element (22) being arranged on or in the backrest (8) when the head protection part (14) is assembled. Bucket seat (2) after claim 3 , wherein the stiffening element (22) is arranged in the manner of a tongue and groove connection on or in the backrest (8). Shell seat (2) according to one of the preceding claims, wherein the head protection part (14) can be arranged on or in the backrest (8) or the neck support (12) without the use of tools. Shell seat (2) according to one of the preceding claims, wherein in the arranged state of the head protection part (14) belt passage openings (26) are formed, which are delimited by the backrest (8), the neck support (12) and the legs (16a, 16b). Shell seat (2) according to one of the preceding claims, wherein the only two first fastening elements (20) are designed as screw elements. Shell seat (2) according to one of the preceding claims, wherein the seat shell (4) and the backrest (8) and the neck support (12) and the head protection part (14) are made of a fibre-reinforced plastic, in particular a carbon-fibre reinforced plastic. Shell seat (2) according to one of the preceding claims, wherein the seat shell (4), the backrest (8) and the neck support (12) are formed together as a common component. Shell seat (2) according to one of the preceding claims, wherein the seat surface (6), in particular the side of the seat surface (6) facing the driver, has second fastening elements (28), through which the shell seat (2) is arranged on the motor vehicle and in a inclination is adjustable.

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