Vehicle seat with seat belt system

Abstract

The invention relates to a vehicle seat (1) with a belt system (2), wherein the belt system (2) comprises a belt element (3) and a winding and unwinding mechanism (4) which is designed and configured to wind the belt element () up and down, and wherein the belt system (3) comprises a deflection unit (5) with a deflection element (6), wherein the deflection element (6) is designed and configured to deflect the belt element (3) towards a person, wherein the deflection unit (5) comprises a spacer element (7) which is arranged on the vehicle seat (1), and wherein the deflection element (6) is arranged on the spacer element (7) such that the deflection element (6) is spaced away from the vehicle seat (1), and wherein the spacer element (7) is elastically deformable.

Description

[0001] The present invention relates to a vehicle seat with a belt system, wherein the belt system has a belt element and a winding and unwinding mechanism which is provided and designed to wind and unwind the belt element, and wherein the belt system has a deflection unit with a deflection element, wherein the deflection element is provided and designed to deflect the belt element in the direction of a person.

[0002] Such systems are well known in the art, but generally have the disadvantage that they are relatively close to the vehicle seat or connected to the vehicle seat, so that a deflection or ergonomic belt guide for both tall and short drivers is not provided. Furthermore, it is also known from the prior art that the belt deflections or belt guides are relatively rigid, so that minor movements of the person sitting in the vehicle seat cannot be followed.

[0003] JP 2016-30 498 A shows a vehicle seat with a belt system, wherein the belt system has a belt element and a winding and unwinding mechanism.

[0004] DE 296 09 436 U1 concerns an anchorage for the buckle of a safety belt.

[0005] DE 10 2007 013 270 A1 shows a belt buckle group and a method for producing a belt buckle group with a buckle head and a fitting connected to the buckle head.

[0006] It is therefore the object of the present invention to provide a vehicle seat by means of which good belt guidance and deflection of the belt element is possible and the comfort for a person sitting on the vehicle seat can be significantly improved.

[0007] This underlying problem is solved by a vehicle seat with a belt system having the features of patent claim 1.

[0008] The core idea of ​​the present invention is to provide a vehicle seat with a belt system, wherein the belt system has a belt element and a winding and unwinding mechanism which is provided and designed to wind and unwind the belt element, and wherein the belt system has a deflection unit with a deflection element, wherein the deflection element is designed to deflect the belt element towards a person. The deflection unit has an elastically deformable spacing element which is arranged on the vehicle seat, and wherein the deflection element is arranged on the spacing element such that the deflection element is spaced from the vehicle seat.

[0009] The fact that the deflection element is spaced apart from the vehicle seat means that the deflection element is at a certain distance from the vehicle seat. The deflection element is therefore connected to the vehicle seat, particularly indirectly, by means of the spacing element.

[0010] Alternatively, the term "belt element" can also be understood as a belt strap. Likewise, the winding and unwinding mechanism can be understood as a belt retractor or belt winding element.

[0011] The wording "the belt element can be deflected toward a person" means, in particular, that the belt element can be guided and deflected by means of the deflection unit and, in particular, by means of the deflection element in such a way that the belt element can be deflected or guided toward the person by the winding and unwinding mechanism. In particular, the person is a person who has taken up a seat and is sitting on the vehicle seat.

[0012] As already mentioned, the spacing element acts as an intermediate element between the deflection element and the vehicle seat.

[0013] Because the spacer element is designed to be elastically deformable, it can lead to the elastically deformable element being elastically deformed, particularly when forces, more preferably tensile forces, occur. This means that the spacer element is arranged in its zero position in a state in which no forces act on the spacer element. If forces, in particular tensile forces, act on the elastically deformable spacer element, the forces or forces acting on the spacer element can cause the spacer element to be elastically deformed, i.e. the spacer element can be bent or curved into a deformed state. If the spacer element is in a deformed state and no further forces act on the spacer element, the spacer element moves from the deformed state back to its zero position.

[0014] The forces acting on the spacing element refer, in particular, to the forces that can be transmitted to the spacing element by means of or due to the forces acting on the belt element. For example, forces can act on the belt element when a person sitting on the vehicle seat moves, during acceleration maneuvers, during accidents, and the like. Because the person wishes to move relative to the vehicle seat in these cases, the person's movement is transmitted to the belt element and, accordingly, also to the spacing element.

[0015] It is therefore particularly preferred according to the present invention that even smaller movements of the person on the vehicle seat can be easily followed by the deformable spacing element, so that the person can be provided with improved comfort with regard to smaller movements on the vehicle seat.

[0016] The state of the art does not provide for such follow-ups of the spacing element, so that when forces occur on the belt element, the winding and unwinding mechanism is blocked and, accordingly, the movement of the person on the vehicle seat is also blocked.

[0017] This disadvantage is eliminated by the present invention, in particular the elastically deformable spacing element, and an improved and more comfortable belt guide is ensured.

[0018] It is provided that the elastically deformable spacing element is designed such that when the spacing element is deformed up to a predetermined limit angle, the deformation of the spacing element is elastic and from the limit angle onwards the deformation of the spacing element is plastic.

[0019] When the critical angle is reached, a load on the spacer element changes from a bending load to a tensile load, thereby changing from an elastic deformation to a plastic deformation.

[0020] Because the spacing element is or can be plastically deformed above a certain critical angle, this means that when particularly high or critical forces occur, the spacing element is plastically deformed, allowing forces to be absorbed to absorb the loads of the person sitting in the vehicle seat. For smaller force impacts, the spacing element is designed to be elastically deformed up to the critical angle. Accordingly, the plastic deformation or deformation has a safety aspect, particularly in the event of accidents, crashes, or similar events.

[0021] Particularly preferably, it can be provided that the predetermined limit angle is 45°.

[0022] In particular, the vehicle seat according to the invention, especially in conjunction with the predetermined limit angle, can meet the requirements or demands of SAE J2292 and also pass the tensile test defined therein.

[0023] According to a particularly preferred embodiment, the spacing element can be produced particularly simply if the elastically deformable spacing element is designed in layers. The spacing element therefore particularly preferably has a layered structure, and the layered structure preferably consists of at least two layers. In this case, it can preferably be provided that the layers of the layered structure are of identical design. In the case of multiple layers, i.e. with more than two layers, it can be provided that individual layers are of identical design to one another and further individual or further layers are of different design. This can make it possible to design the spacing element in accordance with the existing requirements.

[0024] According to a further preferred embodiment, it can be provided that the spacing element has a securing element which connects the various layers of the spacing element to one another and is preferably provided and designed to fail at an angle greater than the predetermined limit angle and therefore to enable the plastic deformation of the spacing element.

[0025] Furthermore, according to a preferred embodiment, the elastically deformable spacing element can be designed such that each layer of the layered structure is a leaf spring element. Particularly preferably, as already explained, the layers can be designed differently, so that the leaf spring elements can also be different from one another.

[0026] According to a further preferred embodiment, the spacing element can be elongated. Therefore, the spacing element preferably has a direction of extension in which the elongated extension of the spacing element extends. Furthermore, "elongated" means that, compared to the extension in the direction of extension, the height and width extensions are smaller than the extension in the direction of extension.

[0027] This makes it possible to position the spacing element conveniently on the vehicle seat and to adapt it to the challenges or needs of the vehicle seat with the belt system.

[0028] According to one embodiment, it is further preferred that the spacer element has a first end and a second end. Particularly preferably, the first end is connected to the vehicle seat. It is further preferred that the deflection element is arranged at the second end of the spacer element. It is preferably provided that the spacer element is firmly connected to the vehicle seat.

[0029] In order to further improve the comfort for a person sitting on the vehicle seat, it is particularly preferably provided that the elastically deformable spacing element is displaced and / or rotatably arranged relative to the vehicle seat. However, it may be possible for a person to adjust the position of the deflection element with respect to the vehicle seat so that the deflection element is arranged in the correct position for the driver. As mentioned, the elastically deformable spacing element can be displaced relative to the vehicle seat. For example, it is possible here to provide guidance by means of one or more tongue and groove elements, wherein the groove is preferably arranged on the spacing element and the tongue is arranged on the vehicle seat. Alternatively or cumulatively, it can be provided that the elastically deformable spacing element is arranged rotatably relative to the vehicle seat.This may mean that by rotating the spacer element, the spacer element can be aligned accordingly.

[0030] Particularly preferably, it can be provided that a displacement or a rotation of the spacing element relative to the vehicle seat represents a detachable connection, wherein the connection between the spacing element and the vehicle seat can be released and the spacing element can also be firmly connected to the vehicle seat again, in particular after a displacement and / or rotation of the spacing element.

[0031] Due to the fixed connection of the spacing element to the vehicle seat, an unwanted movement of the spacing element can be prevented in order to have a correspondingly good positioning of the deflection element relative to the vehicle seat and a good force effect or force deflection on the deflection element or the spacing element can be guaranteed.

[0032] The elastically deformable spacer element can be provided particularly advantageously if the spacer element consists of one or more metals and / or metal alloys. It can be particularly preferably provided that the spacer element consists of or is manufactured from a corrosion-resistant spring steel, in particular a stainless spring steel. By forming the spacer element from metals or metal alloys, a good balance between deformation and stability or rigidity can be achieved.

[0033] Corrosion-resistant spring steel is particularly preferred, as it can precisely meet the requirements for the spacer element. Stainless steel is also readily available and remains inexpensive.

[0034] To further increase comfort for a user of the vehicle seat or the person in the vehicle seat, according to a particularly preferred embodiment, the deflection element can be rotatably connected to the elastically deformable spacer element. This means that the deflection element is rotatably connected to the spacer element, whereby the belt element, which extends through the deflection element or can be deflected by the deflection element, can easily follow a deflection of the belt element due to lateral stresses, i.e., due to the application of forces perpendicular to a tensile force.

[0035] Furthermore, according to a preferred embodiment, the vehicle seat can have a backrest. It is further preferred that the elastically deformable spacer element be connected to the backrest. This connection between the spacer element and the backrest is preferably such that the spacer element is arranged on a rear part of the backrest, on a lateral part of the backrest, and / or on an upper part of the backrest.

[0036] This means that the spacer element and, accordingly, the deflection element can be positioned accordingly to enable the belt element to be positioned as effectively as possible with respect to the person sitting on the vehicle seat. The spacer element should be arranged in such a way that it does not cause any disruption to the person while driving or using the vehicle seat. It is particularly preferred for the spacer element to be arranged on the rear part of the backrest. This is particularly advantageous when the winding and unwinding mechanism is also arranged on the rear part of the backrest or behind the backrest. Fastening to a lateral part of the backrest depends on the space available to the left or right in the vehicle or with respect to the vehicle seat.The same applies, of course, to the upper part of the backrest, where a headrest may preferably be provided. If this headrest is provided, it is particularly preferred that the deflection element be arranged at the same height as the headrest.

[0037] According to a further preferred embodiment, the winding and unwinding mechanism can be arranged behind the backrest. Further preferably, the winding and unwinding mechanism can be arranged on a seat part of the vehicle seat and / or on a vehicle seat base. Accordingly, the seat part can be understood as the element of the vehicle seat on which the person can sit. The vehicle seat base can be understood as a support part on which the vehicle seat itself is arranged.

[0038] This arrangement of the roll-up and unrolling mechanism allows the roll-up and unrolling mechanism to move with the vehicle seat or the corresponding element when the vehicle seat is adjusted for length, width, and / or height. This also applies to rotation of the vehicle seat. This means that the roll-up and unrolling mechanism can move with the vehicle seat or the vehicle seat base, allowing this mechanism to be positioned accordingly.

[0039] According to a further preferred embodiment, a guide element for guiding the belt element can be arranged between the winding and unwinding mechanism and the deflecting element. This means that the guide element is intended and configured to guide the correspondingly provided belt element, i.e., in this case, to guide it toward the deflecting element.

[0040] According to a further preferred embodiment, the guide element can be arranged between the vehicle seat and the elastically deformable spacer element. This makes it possible to efficiently utilize the space between the vehicle seat and the spacer element, or between the backrest and the spacer element.

[0041] Alternatively, according to a further preferred embodiment, the guide element can be arranged on a side of the elastically deformable spacing element facing away from the vehicle seat. This allows the corresponding guide element to be designed particularly advantageously to ensure particularly good guidance of the belt element.

[0042] According to an alternative embodiment, the belt element can be arranged between the vehicle seat and the elastically deformable spacer element, whereby a guide element can be omitted. If the guide element is omitted and the belt element is arranged between the spacer element and the vehicle seat, the guidance of the belt element is already inherently predetermined.

[0043] Further developments and configurations in the embodiments are applicable to the other embodiments and can be freely combined with each other, provided they do not correspond to opposing embodiments.

[0044] Further objects, advantages and usefulness of the present invention will become apparent from the following description taken in conjunction with the drawings.

[0045] The invention is described in more detail below in conjunction with the figures.

[0046] They show: Fig. 1A a vehicle seat of the prior art; Fig. 1B shows a vehicle seat according to the invention; Fig. 1C a comparison of the vehicle seats according to the Fig. 1A and Fig. 1B; Fig. 2A shows the vehicle seat according to a preferred embodiment in a front view; Fig. 2B the vehicle seat according to Fig. 2A in a side view; Fig. 2C the vehicle seat according to Fig. 2A in a perspective view from behind; Fig. 3A shows a vehicle seat according to an embodiment in a front view; Fig. 3B the vehicle seat according to Fig. 3A in a rear view; Fig. 4A shows a vehicle seat according to an embodiment in a front view; Fig. 4B the vehicle seat according to Fig. 4A in a rear view; Fig. 5A shows a vehicle seat according to an embodiment in a front view; Fig. 5B the vehicle seat according to Fig. 5A in a rear view; Fig. 6A the spacing element in a zero position; Fig. 6B the spacing element in a deformed position; Fig. 6C the spacing element in a deformed position; Fig. 7 a sectional view of the deflection unit; Fig. 8A a side view of the deflection unit; Fig. 8B is a sectional view along BB; Fig. 8C a sectional view along CC; Fig. 8D is a sectional view along DD; Fig. 9A is a diagram of a connecting plate; Fig. 9B the connecting plate with mounted spacer element; Fig. 9C different rotational positions of the spacing element; Fig. 9D different displacement positions of the spacing element.

[0047] In the figures, identical components are identified by the corresponding reference symbols. For clarity, some components may not be provided with a reference symbol in some figures, but are identified elsewhere.

[0048] According to the Fig. 1A shows a vehicle seat 1 according to the known prior art, wherein the vehicle seat 1 has a backrest RL on which a deflection unit 5 with a deflection element 6 is shown. A belt system 2 with a belt element 3 and the winding and unwinding mechanism 4 has been omitted here for clarity.

[0049] As per the Fig. 1A, the deflection element 6 is arranged relatively close to the backrest RL, so that an ergonomic or comfortable guidance and deflection of a belt element 3 cannot be provided.

[0050] In contrast, in the Fig. 1B shows a vehicle seat 1 according to a preferred embodiment of the invention, wherein the deflection element 6 of the deflection unit 5 is arranged on the backrest RL of the vehicle seat 1. The deflection element 6 is connected to the backrest RL by means of a spacer element 7. The spacer element 7 makes it possible to arrange the deflection element 6, as shown, at a relatively large distance from the backrest RL.

[0051] A comparison between the vehicle seat 1 according to the prior art and the vehicle seat 1 according to the present invention is shown in the Fig. 1C, where it can be clearly seen how the arrangement of the respective deflection element 6 differs from the backrest RL or the vehicle seat 1.

[0052] The more outwardly positioned arrangement of the deflection element 6 enables better or more optimal ergonomics of the belt system 2 and guidance of the belt element 3. This is particularly preferred compared to the prior art from Fig. 1A, the deflection element 6 can be arranged more than 100 mm further outward in a width direction B and more than 50 mm further outward in a height direction H relative to the vehicle seat 1 compared to the prior art. Particularly preferably, the deflection element 6 can be arranged up to 130 mm further outward in the width direction B and up to 80 mm further outward in the height direction H compared to the prior art.

[0053] Further embodiments, designs and properties of the present invention are shown in more detail in the following figures.

[0054] In the Fig. 2A shows a vehicle seat 1 according to a preferred embodiment from the front, in which Fig. 2B in a side view and in the Fig. 2C in a perspective view from behind.

[0055] As can be seen, according to a preferred embodiment, the vehicle seat 1 comprises a backrest RL, a seat part ST, and a vehicle seat lower part UT, wherein the vehicle seat lower part UT is arranged below the seat part ST, and wherein the seat part ST is connected to the vehicle seat lower part UT. The vehicle seat lower part UT further preferably comprises a spring and / or damping unit 18, which is only identified by way of example in this example, and spring units and damping units per se have been omitted.

[0056] Furthermore, the vehicle seat 1 can comprise a headrest K.

[0057] Furthermore, the belt system 2 is shown with a belt element 3, wherein the belt system 2 can represent a 3-point belt known from the prior art. The deflection element 6 of the deflection unit 5 is connected to the vehicle seat 1, here to the backrest RL, by means of the spacing element 7 and spaced therefrom. The deflection element 6 is provided and designed to deflect the belt element 3 accordingly and guide it towards the person. The person is not shown here, but can be imagined sitting on the seat part ST or the vehicle seat 1. Further details regarding the 3-point belt can be omitted.

[0058] In the Fig. 2B, the vehicle seat 1 is in accordance with the Fig. 2A in a side view, wherein the rolling-up and unrolling mechanism 4 can now also be seen, which in this case is connected to the vehicle seat lower part UT and is preferably arranged and connected to the vehicle seat 1 behind the vehicle seat 1. The rolling-up and unrolling mechanism is here connected to the vehicle seat lower part UT, wherein it is also conceivable that the rolling-up and unrolling mechanism 4 can be connected to the seat part ST, the backrest RL or other elements of the vehicle seat 1.

[0059] In the Fig. 2C the vehicle seat is in accordance with Fig. 2A and Fig. 2B again shown in a perspective view from behind.

[0060] Particularly preferably, the deflection element 6 and the deflection unit 5 are designed in such a way that the belt element 3, which can be provided from the winding and unwinding mechanism 4, in the embodiments shown according to the Fig. 2A, Fig. 2B and Fig. 2C, by the winding and unwinding mechanism 4 from a position relatively far down with respect to the vehicle seat 1 and behind the vehicle seat 1 upwards and by the deflection element 6 from the top rear to the top front and back down again.

[0061] The various possibilities and embodiments regarding the guidance of the belt element 3 are shown in more detail in the following figures.

[0062] In the Fig. 3A and Fig. 3B, the belt guide is designed such that no further guide is arranged between the winding and unwinding mechanism 4 and the deflection element 6, ie that the belt element 3 is only guided by the winding and unwinding mechanism 4 and the deflection element 6 behind the backrest RL.

[0063] It is provided that the belt element 3 is arranged on a side of the spacing element 7 facing away from the vehicle seat 1. This means that, viewed in the longitudinal direction L, the spacing element is arranged behind the vehicle seat 1 and the belt element 3 is arranged behind the spacing element 7.

[0064] In the Fig. 4A and Fig. 4B is an alternative embodiment to the Fig. 3A and Fig. 3B, wherein the belt element 3 is now not arranged behind the spacing element 7, but rather such that the belt element 3 is arranged between the vehicle seat 1 and the spacing element 7. This means that the belt element 3 is arranged behind the vehicle seat 1, viewed in the longitudinal direction L, and the spacing element 7 is arranged behind the belt element 3.

[0065] According to the Fig. 5A and Fig. 5B shows a further embodiment of the guide of the belt element 3, wherein a guide element 16 is provided, which is arranged with respect to the belt element 3 or its guide between the winding and unwinding mechanism 4 and the deflection element 6. According to the present Fig. 5B, it is provided that the guide element 16 is connected to the spacing element 7.

[0066] In principle, it is also possible for the guide element 16 to be connected to the vehicle seat 1, for example, the backrest RL. The guide element 16 is designed in such a way that the belt element 3 can be guided and, if necessary, slightly deflected.

[0067] In the present embodiment according to the Fig. 5B, it is provided that the guide element 16 is arranged behind the spacing element 7 as seen in the longitudinal direction L and is connected to it.

[0068] It would also be possible in principle for the guide element 16 to be arranged between the vehicle seat 1 or the backrest RL and the spacing element 7; this is particularly advantageous if the belt guide of the belt element 3 is such that the belt element 3 is arranged between the vehicle seat 1 and the spacing element 7.

[0069] The further figures now show in more detail the functioning of the spacing element 7 as well as the configurations and designs with regard to the spacing element 7.

[0070] According to the invention, it is provided that the spacing element 7 is designed to be elastically deformable, i.e. it is designed as an elastically deformable spacing element 7. It is further preferably provided that, in the event that no force acts on the spacing element 7 as a result of a movement of the belt element 3, the spacing element 7 is in a zero position, i.e. is not deformed. However, if tensile forces in particular act on the spacing element 7 as a result of tensile forces acting on the belt element 3, the spacing element 7 is deformed accordingly and is therefore in a deformed state. Because tensile forces in particular act on the spacing element 7, the spacing element 7 is deformed accordingly in the direction of the pull, i.e. preferably forwards in the longitudinal direction L.

[0071] In the Fig. 6A shows the spacer element 7 in the zero position. This means that no forces act on the spacer element 7, since no forces act on the belt element 3.

[0072] In the Fig. 6B, however, the spacing element 7 is shown in a deformed state, whereby by the action of forces on the belt element 3 in the longitudinal direction L forwards, the forces can be transmitted to the spacing element 7 via the deflection element 6, which leads to the spacing element 7 being deformed forwards. Fig. 6B shows the embodiment in which the spacing element 7 is deformed forward. Fig. 6B shows the embodiment in which the belt element 3 is arranged in the zero position between the vehicle seat 1 and the spacing element 7, and is accordingly moved forward by the spacing element 7 with the deflection element 6.

[0073] In the Fig. 6C is the initial situation as in the Fig. 6B, however, in this case the belt element 3 is arranged behind the spacing element 7, so that the belt element 3 moves accordingly with the spacing element 7.

[0074] In the Fig. 7 shows a sectional view of a part of the vehicle seat 1, wherein the section is such that the spacing element 7, the deflection element 6 and further features of the deflection unit 5 can be seen in the sectional view.

[0075] It is particularly preferred that the deflecting element 6 has a slot 20, which is designed and intended to be plugged onto the spacing element 7, so that the spacing element 7 extends partially into the deflecting element 6. Further preferably, the slot 20 is designed such that it provides an installation space and a free space for the movement of the spacing element 7 upon deformation of the spacing element 7. Furthermore, it is provided that a first screw connection 19 is provided, which is also intended for the connection between the deflecting element 6 and the spacing element 7. The further embodiments of the first screw connection 19 are discussed in more detail in the following figures.

[0076] It can also be seen that the spacing element 7 has a layered structure 8 with at least a plurality of layers 9. The layers 9 are arranged such that they lie one above the other. Particularly preferably, the respective layers 9 are formed from a leaf spring element. This makes it possible to provide a particularly simple construction of the spacing element 7. In particular, the layered structure 8 with the layers 9 is such that the layers 9 can be moved relative to one another when the spacing element 7 is deformed, i.e. that the layers 9 can shift or move relative to one another. This is advantageous in order to be able to follow the deformation or movement of the spacing element 7 due to the action of forces.

[0077] In the Fig. 8A shows the spacing element 7 with the deflection element 6 again, whereby the vehicle seat 1 or the belt system 2 with the belt element 3 has been omitted. Fig. 8A shows further sections, one section BB, which is shown in the Fig. 8B, section CC, which is shown in the Fig. 8C, and a section DD, which is shown in the Fig. 8D is shown.

[0078] In the Fig. 8B, the deflection element 6 is shown in more detail. In particular, the deflection element 6 comprises a guide slot 21, which is provided and designed so that the belt element 3 can extend through the guide slot 21 from the back to the front through the deflection element 6. Furthermore, the first screw connection 19 is shown again, wherein the deflection element 6 further comprises a guide groove 22, which is designed so that the first screw connection 19 is arranged in the guide groove 22. The first screw connection 19 is arranged stationary relative to the spacing element 7, so that when the belt element 3 moves in the deflection element 6, for example the guide slot 21, the deflection element 6 moves due to a movement of the guide groove 22 relative to the first screw connection 19, so that the deflection element 6 can be rotated by an angle 23. The angle 23 is shown schematically in the Fig. 8B. The angle 23 is limited by the design or configuration of the guide groove 22, i.e., the length of the guide groove 22.

[0079] In the Fig. 8C and Fig. 8D shows a securing element 17 in more detail, which is designed to enable or provide the critical angle 10 of deformation. The securing element 17 is such that the layers 9 of the layer structure 8 are connected to one another by the securing element 17. The design of the securing element 17 will be discussed in more detail below. As can be seen, according to the Fig. 8C and Fig. 8D, the securing connections 24 are provided, which can particularly preferably also be designed as a screw connection. The first screw connection 19 can also function as a securing connection 24. The securing connections 24 are such that the layers 9 of the layer structure 8 of the spacing element 7 are connected to one another. On one side or the first side 25 of the spacing element 7, the securing connections 24 are inserted into corresponding holes 27 with a precise fit. The holes 27 are preferably designed as through-openings. On the other or the second side 26 of the spacing element 7, as in the Fig. As shown in Figure 8D, the securing connections 24 are each arranged in an elongated hole 28. Upon deformation of the spacing element 7, the layer structures shift relative to one another, so that the securing connections 24 also experience a corresponding movement. Due to the design or provision of elongated holes 28 on the second side 26, the securing connections 24 can easily follow this movement. The elongated holes 28 are designed such that the securing connections 24 can follow the movement of the spacing element 7 until the respective end of the elongated hole 28 has been reached. Reaching the end of the elongated hole 28 particularly preferably corresponds to the critical angle 10.

[0080] The connection or arrangement of the spacing element 7 on the vehicle seat 1 is shown in more detail in the following figures.

[0081] Particularly preferably, the spacing element 7 can be connected to the vehicle seat 1, for example, the backrest RL, by means of a connecting plate 29. The provided connecting plate 29 can provide additional functions regarding the rotatability or displaceability of the spacing element 7. This is further explained in the following figures.

[0082] The connecting plate 29 has in particular holes 30 which are provided and designed to be connected to the vehicle seat 1 or the backrest RL by means of a corresponding element which extends through the hole 30.

[0083] Furthermore, the connecting plate 29 has first holes 31 and second holes 32. Particularly preferably, the first holes 31 are provided above the second holes 32 in the height direction H. The first holes 31 are arranged spaced apart from one another in the width direction B. The same applies to the second holes 32.

[0084] Particularly preferably, the spacing element 7 is connected to the connecting plate 29 via a first hole 31 and a second hole 32.

[0085] Depending on which holes 31, 32 the spacing element 7 is connected to the connecting plate 29, different positions of the spacing element 7 can be realized with respect to the connecting plate 29 and accordingly with respect to the vehicle seat 1 or the backrest RL.

[0086] According to the present Fig. 9B shows a connecting plate 29 on which the spacing element 7 is arranged. It is provided that, on the one hand, the spacing element 7 is connected to a first hole 31 and a second hole 32, or can be connected to the connecting plate 29 via these holes 31, 32. Screw connections 34 are inserted into the holes 31, 32, which are such that the spacing element 7 can be connected to the connecting plate 29. The connection with respect to the first hole 31 is such that the spacing element forms a rotation axis 23 here. Further preferably, an elongated hole 35 is provided in the spacing element 7, which is designed such that the elongated hole 35 is movable relative to the screw connection 34. However, it is also preferably provided that the screw connection 34 allows the spacing element 7 to rest so tightly against the connecting plate 29 that a movement in the elongated hole 35 orof the elongated hole 35 is prevented. Rotation of the spacing element 7 is possible according to the configuration of the elongated hole 35.

[0087] In principle, it is conceivable that the spacer element 7 can be connected to the connecting plate 29 in any desired first hole 31 and any desired second hole 32. Depending on which holes 31, 32 are designed for fastening the spacer element 7 to the connecting plate 29, the positioning of the spacer element 7 with respect to the connecting plate 29 changes accordingly, as does the positioning of the spacer element 7 with respect to the vehicle seat 1.

[0088] It is also provided that the spacing element 7 is detachably connected to the connecting plate 29 so that during use of the vehicle seat 1 the positioning of the spacing element 7 can be adjusted according to the specifications of a person.

[0089] According to the Fig. Figure 9C shows the positioning of the spacer element 7, as just described. The spacer element 7 is detached from a first hole 31, rotated relative to the connecting plate 29, and connected to another first hole 31. The connection to the second hole 32 remains unchanged. As can be seen, the result is a rotation or pivoting of the spacer element 7 about the rotation axis formed by the second hole 32.

[0090] According to the Fig. 9D shows a further situation in which the positioning of the spacing element 7 has been changed in such a way that both the position or the connection to a first hole 31 and to a second hole 32 has been changed. List of reference symbols 1 vehicle seat 2 belt system 3 belt element 4 Winding and unwinding mechanism 5 Deflection unit 6 Deflection element 7 spacing element 8 Layer structure 9 layer 10 critical angles 11 first end of the spacing element 12 second end of the spacing element 13 rear part 14 side part 15 upper part 16 Guide element 17 Securing element 18 Spring and / or damping unit 19 first screw connection 20 slots 21 Guide slot 22 guide groove 23 angles 24 fuse connection 25 first page 26 second page 27 holes 28 slot 29 Connecting plate 30 holes 31 first hole 32 second hole 33 axis of rotation 34 screw connection 35 slot RL backrest ST seat part UT vehicle seat base K Headrest

Claims

[1] Vehicle seat (1) with a belt system (2), wherein the belt system (2) has a belt element (3) and a winding and unwinding mechanism (4) which is provided and designed to wind and unwind the belt element (3), and wherein the belt system (3) has a deflection unit (5) with a deflection element (6), wherein the deflection element (6) is provided and designed to deflect the belt element (3) in the direction of a person, wherein the deflection unit (5) has a spacing element (7) which is arranged on the vehicle seat (1), and wherein the deflection element (6) is arranged on the spacing element (7) in such a way that the deflection element (6) is spaced from the vehicle seat (1), and wherein the spacing element (7) is elastically deformable; characterized by , that the elastically deformable spacing element (7) is designed such that upon deformation of the spacing element (7) up to a predetermined limit angle (10), the deformation of the spacing element (7) is elastic and from the limit angle (10) onwards the deformation of the spacing element (7) is plastic. [2] Vehicle seat (1) according to claim 1, characterized by that the elastically deformable spacing element (7) is formed in a layered manner with at least two layers (9). [3] Vehicle seat (1) according to claim 2, characterized by that each layer (9) is a leaf spring element. [4] Vehicle seat (1) according to one of claims 1 to 3, characterized by in that the spacing element (7) is elongated and has a first end (11) and a second end (12), wherein the first end (11) is connected to the vehicle seat (1) and the deflection element (6) is arranged at the second end (12). [5] Vehicle seat (1) according to one of claims 1 to 4, characterized by that the elastically deformable spacing element (7) is arranged displaceably and / or rotatably relative to the vehicle seat (1). [6] Vehicle seat (1) according to one of claims 1 to 5, characterized by that the elastically deformable spacing element (7) consists of one or more metals and / or metal alloys. [7] Vehicle seat (1) according to one of claims 1 to 6, characterized by that the deflection element (6) is rotatably connected to the elastically deformable spacing element (7). [8] Vehicle seat (1) according to one of claims 1 to 7, characterized by that the vehicle seat (1) has a backrest (RL), wherein the elastically deformable spacing element (7) is connected to the backrest (RL). [9] Vehicle seat (1) according to claim 8, characterized by that the rolling up and down mechanism (4) is arranged behind the backrest (RL). [10] Vehicle seat (1) according to one of claims 1 to 9, characterized by that a guide element (16) is arranged between the winding and unwinding mechanism (4) and the deflection element (6) for guiding the belt element (3). [11] Vehicle seat (1) according to claim 10, characterized by that the guide element (16) is arranged between the vehicle seat (1) and the elastically deformable spacing element (7). [12] Vehicle seat (1) according to claim 10, characterized by that the guide element (16) is arranged on a side of the elastically deformable spacing element (7) facing away from the vehicle seat (1).

Images