Vehicle seat with seat depth adjustment device

Abstract

The present invention relates to a vehicle seat (1) having a seat portion frame (2) and a seat depth adjustment device (4) with a seat depth adjustment element (5) displaceable relative to the seat portion frame (2), wherein a first connecting element (6) is provided and designed to connect the seat depth adjustment element (5) to the seat portion frame (2) and guide the seat depth adjustment element (5) relative to the seat portion frame (2).

Description

Technical Field

[0001] The present invention relates to a vehicle seat having a seat frame and a seat depth adjustment device with a seat depth adjustment element, wherein the seat depth adjustment element is displaceable relative to the seat frame. Background Art

[0002] Prior art vehicle seats with seat depth adjustment devices for adjusting the seat depth, particularly the seat surface on which a person can sit, are known.

[0003] This seat depth adjustment mechanism is guided, for example, by means of several lever elements, along which corresponding seat depth adjustment elements are guided. The lever elements are rigidly connected to the seat frame. In terms of rigidity and load-bearing capacity, this design is suitable for normal use in traffic but not for off-road use. The corresponding adjustments are associated with considerable additional effort, particularly in designing the lever elements so that they do not detach from the seat frame even under heavy loads. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a vehicle seat by means of which the above-mentioned problems can be overcome and the number of required components can be reduced.

[0005] This objective is achieved by any of the vehicle seats of the present invention. Advantageous embodiments of the invention can be found in the detailed description.

[0006] The central idea of ​​the present invention is to provide a vehicle seat comprising a seat portion frame and a seat depth adjustment device including a seat depth adjustment element displaceable relative to the seat portion frame, wherein a first connecting element is provided and adapted to connect the seat depth adjustment element to the seat portion frame and guide the seat depth adjustment element relative to the seat portion frame.

[0007] The seat portion frame should be understood as the frame of the seat portion, where the seat portion refers to the part of the vehicle seat where a person can sit. Preferably, the seat portion has a cushion and / or cover on its upper side.

[0008] According to the present invention, the seat depth adjustment element is displaceable relative to the seat portion frame, preferably linearly. Particularly preferably, the displacement allows the seat depth adjustment element to be translated. Preferably, the seat depth adjustment element is displaceable in the longitudinal direction, which may correspond to the longitudinal direction of the vehicle seat. By displacing the seat depth adjustment element relative to the seat portion frame, the seat depth of the vehicle seat, particularly the seat portion, can be adjusted because the seat surface can be altered by the seat depth adjustment element.

[0009] According to a preferred embodiment, the travel of the seat depth adjustment device is up to 100 mm, more preferably 80 mm, and particularly preferably 60 mm. The travel of the seat depth adjustment device refers to the distance the seat depth adjustment element can displace relative to the seat portion frame. This means that the seat depth adjustment element can have a minimum displacement position and a maximum displacement position, where each position can lie between these displacement positions. Between the minimum displacement position and the maximum displacement position, the seat depth adjustment element travels a displacement path.

[0010] According to the present invention, it is therefore envisioned that instead of a guide rod element as known in the prior art, only at least one connecting element is provided, by means of which the seat depth adjustment element is connected to the seat portion frame, and by means of which the seat depth adjustment element can be guided relative to the seat portion frame. Thus, a dual function can be attributed to the connecting element.

[0011] Particularly preferably, the seat depth adjustment element is made of plastic, and preferably, the seat depth adjustment element can be manufactured during the injection molding process.

[0012] According to a particularly preferred embodiment, the seat portion frame includes a first extension hole, wherein a first connecting element extends through the first extension hole and wherein the first connecting element is guided by the first extension hole.

[0013] Preferably, the first extension hole is configured as a gap or recess in the seat portion frame, that is, the first extension hole is an integral part of the seat portion frame, so that additional guides extending beyond the seat portion frame, as known from the prior art, can be omitted.

[0014] Particularly preferably, the first extension hole is designed to extend in the longitudinal direction, making linear guidance of the seat depth adjustment element in the longitudinal direction possible.

[0015] Particularly preferably, the first connecting element is formed to extend perpendicular to the extension direction of the first extension hole, and preferably extends perpendicular to the longitudinal direction.

[0016] According to another preferred embodiment, the first connecting element is configured to be formed by a first connecting element portion and a second connecting element portion, wherein the first connecting element portion and the second connecting element portion are connected to each other at least non-positively, and preferably fixedly. It is conceivable that the first connecting element portion and the second connecting element portion are threaded together, riveted together, etc.

[0017] More preferably, the first connecting element portion or the second connecting element portion can be configured to be overmolded using plastic, wherein preferably, the first connecting element portion or the second connecting element portion is overmolded from the seat depth adjustment element.

[0018] According to another preferred embodiment, the first connecting element may be configured to include a first connecting portion and a second connecting portion, wherein more preferably, the first connecting portion is in direct contact with the seat depth adjustment element, and the second connecting portion is in direct or indirect contact with the seat portion frame, wherein indirect contact is particularly preferred.

[0019] The connecting part allows for a good connection between the first connecting element, the seat depth adjustment element, and the seat frame.

[0020] As described in the invention, this connection makes displacement of the seat depth adjustment element toward the seat portion frame possible.

[0021] According to a particularly preferred embodiment, a first spring unit, preferably a disc spring unit, may be provided that at least partially surrounds the first connecting element in the circumferential direction, wherein the first spring unit is operatively connected to the seat portion frame and the first connecting element such that a spring force acts on the first connecting element and on the seat portion frame.

[0022] Particularly preferably, the first spring unit is rigidly connected to the first connecting element.

[0023] More preferably, the first spring unit is designed such that the spring force acts in the height direction, which may correspond to the vehicle seat height direction or the extension direction of the first connecting element. Preferably, the first spring unit is designed such that the spring force acts in both the height and width directions, the height direction of which may correspond to the vehicle seat height direction or the extension direction of the first connecting element.

[0024] Particularly preferably, the first spring unit is connected to the second connecting portion of the first connecting element and the seat portion frame, thereby enabling tolerance compensation in a direction perpendicular to the first extension hole, and allowing for good guidance and displacement of the seat depth adjustment element within the first extension hole. More preferably, the first spring unit can be designed such that tolerance compensation of the first connecting element relative to the extension hole is also possible. Preferably, as seen in the longitudinal direction, the first spring element extends through the first extension hole and effectively contacts the first connecting element and the first extension hole.

[0025] According to another preferred embodiment, the first spring unit is configured to be made of plastic.

[0026] Particularly preferably, the plastic has elastic properties, making tolerance compensation between the first connecting element and the seat portion frame possible. More preferably, the first spring element can be used to adjust the connection strength between the seat portion frame and the first connecting element, for example, depending on how the first and second connecting element portions of the first connecting element are connected to each other, such as how far the connecting element portions are screwed into each other.

[0027] Particularly preferably, the first spring unit has sliding properties, thereby further improving the displacement of the seat depth adjustment element relative to the seat portion frame. For example, it is conceivable that the material of the first spring unit has sliding properties.

[0028] According to another preferred embodiment, a second connecting element may be provided, which is configured and designed to connect the seat depth adjustment element to the seat portion frame and guide the seat depth adjustment element relative to the seat portion frame, wherein the seat portion frame has a second extension hole, wherein the second connecting element extends through the second extension hole and wherein the second connecting element is guided by the second extension hole.

[0029] More preferably, a second connecting element and a third connecting element may be provided, which are configured to connect the seat depth adjustment element to the seat portion frame and guide the seat depth adjustment element relative to the seat portion frame, wherein the seat portion frame has a second extension hole and a third extension hole, wherein the second connecting element extends through the second extension hole and is guided by the second extension hole, wherein the third connecting element extends through the third extension hole and is guided by the third extension hole.

[0030] The description of the first connecting element, the first extension hole, the corresponding arrangement and implementation scheme can also be applied to the second connecting element, the third connecting element, and the second and third extension holes.

[0031] It is also conceivable that an nth connecting element and an nth extension hole could be provided beyond what has been described above, and thus the design and construction of the first connecting element and the first extension hole can also be conceivable here.

[0032] It is also conceivable that the first connecting element in its implementation differs from the implementation of other connecting elements. This also applies to the design of the extension holes that are related to each other, and correspondingly to the connection and arrangement.

[0033] By incorporating several connecting elements and extension holes, the guidance of the seat depth adjustment element relative to the seat section frame can be improved, for example, by eliminating possible rotation or other unwanted movements.

[0034] Preferably, the first connecting element is designed as a fixed bearing, while the second and third connecting elements are designed as floating bearings.

[0035] Therefore, the first connecting element is designed as a fixed bearing so that only a single degree of freedom is provided, namely, the movement in the longitudinal direction within the first extension hole.

[0036] Because the first connecting element is designed as a fixed bearing, it may be advantageous to design the second and third connecting elements as floating bearings to compensate for possible manufacturing tolerances in the assembly. Each floating bearing has two degrees of freedom: one is movement in the longitudinal direction within the first extension bore, and the other is movement perpendicular to the longitudinal direction in the width direction, which preferably corresponds to the width direction of the vehicle seat. This means that each connecting element can have a certain distance from the seat portion frame when viewed in the width direction.

[0037] Particularly preferably, the first extension hole, the second extension hole, and the necessary third extension hole can be arranged parallel to each other.

[0038] This also allows for further improvements in the displacement of the seat depth adjustment element relative to the seat frame.

[0039] The fundamental problem is also addressed by a vehicle seat having a seat portion frame and a seat depth adjustment device with a seat depth adjustment element that is displaceable relative to the seat portion frame. The seat portion frame has a first extension hole, and the seat depth adjustment element has a first guide element configured to be guided in the first extension hole. A first connecting element is also provided therein, extending through the first extension hole and connecting the seat depth adjustment element to the seat portion frame.

[0040] Particularly preferably, the first guide element is designed such that, when viewed at least in the width direction, it is complementary to the first extended hole, thus preventing free movement in that direction. Therefore, the first guide element is preferably designed as a fixed bearing.

[0041] Preferably, the first guide element is an integral part of the seat depth adjustment element, which means that the first guide element and the seat depth adjustment element are connected to each other so that the seat depth element and the first guide element are integral or one piece.

[0042] According to a preferred embodiment, the first guiding element is configured to include a first through-hole through which the first connecting element is at least partially received.

[0043] According to another preferred embodiment, a first spring unit, preferably a disc spring unit, is provided, which at least partially surrounds the first connecting element in the circumferential direction. The first spring unit is effectively connected to the first connecting element and the seat portion frame such that a spring force acts on both the first connecting element and the seat portion frame. Preferably, the spring force acts only in the height direction or in the extension direction of the first connecting element. The first spring unit is designed and configured such that the spring force acts only in the height direction or in the extension direction of the first connecting element.

[0044] Particularly preferably, the first spring unit is connected to the second connecting portion of the first connecting element and the seat portion frame, thereby allowing for tolerance compensation in a direction perpendicular to the first extension hole, and the seat depth adjustment element can have good guidance and displacement within the first extension hole. More preferably, the first spring unit can be designed such that tolerance compensation of the first connecting element relative to the extension hole is also possible. Preferably, as viewed in the longitudinal direction, the first spring element extends through the first extension hole and effectively contacts the first connecting element and the first extension hole.

[0045] According to another preferred embodiment, the first spring unit is configured to be made of plastic.

[0046] Particularly preferably, the plastic has elastic properties, making tolerance compensation between the first connecting element and the seat portion frame possible. More preferably, the first spring element can be used to adjust the connection strength between the seat portion frame and the first connecting element, for example, depending on how the first and second connecting element portions of the first connecting element are connected to each other, such as how far the connecting element portions are screwed into each other.

[0047] Particularly preferably, the first spring unit has sliding properties, thereby further improving the displacement of the seat depth adjustment element relative to the seat portion frame. For example, it is conceivable that the material of the first spring unit has sliding properties.

[0048] According to another preferred embodiment, a second connecting element may be provided, which is configured and designed to connect the seat depth adjustment element to the seat portion frame and guide the seat depth adjustment element relative to the seat portion frame, wherein the seat portion frame has a second extension hole, wherein the second connecting element extends through the second extension hole and wherein the second connecting element is guided by the second extension hole.

[0049] More preferably, a second connecting element and a third connecting element may be provided, which are configured to connect the seat depth adjustment element to the seat portion frame and guide the seat depth adjustment element relative to the seat portion frame, wherein the seat portion frame has a second extension hole and a third extension hole, wherein the second connecting element extends through the second extension hole and is guided by the second extension hole, wherein the third connecting element extends through the third extension hole and is guided by the third extension hole.

[0050] According to another preferred embodiment, a second spring element is provided, wherein the second spring element has a first end and a second end, wherein the first end is fixedly connected to the seat depth adjustment element, and the second end is in effective contact with the second extension hole so that the tolerance of the seat depth adjustment element to the second extension hole can be compensated.

[0051] According to a further preferred embodiment, a second spring element and a third spring element are provided, wherein the second spring element has a first end and a second end, wherein the first end is fixedly connected to the seat depth adjustment element, and the second end is effectively in contact with the second extension hole to compensate for the tolerance of the seat depth adjustment element to the second extension hole, and wherein the third spring element has a first end and a second end, wherein the first end is fixedly connected to the seat depth adjustment element, and the second end is effectively in contact with the third extension hole to compensate for the tolerance of the seat depth adjustment element to the third extension hole.

[0052] The second and third spring elements are designed to be floating bearings, while the first guide element is designed to be a fixed bearing. The second and third spring elements are designed to allow movement in the width direction in addition to movement along their corresponding extension holes.

[0053] According to a preferred embodiment, the first connecting element and, if applicable, other connecting elements are made of steel or the like.

[0054] Other advantageous implementation schemes are derived from specific implementation methods. Attached Figure Description

[0055] Further objects, advantages, and usefulness of the invention will become apparent from the following description taken in conjunction with the accompanying drawings. Hereinafter, it is shown that:

[0056] Figure 1A : A vehicle seat with seat depth adjustment in the first state according to the preferred embodiment;

[0057] Figure 1B :according to Figure 1A The vehicle seats in their second state;

[0058] Figure 2A :according to Figure 1BThe seat frame and seat depth adjustment device of the vehicle seat;

[0059] Figure 2B :according to Figure 1A The seat frame and seat depth adjustment device of the vehicle seat;

[0060] Figure 3A :according to Figure 2A A top view of the seat frame and seat depth adjustment device of a vehicle seat;

[0061] Figure 3B :according to Figure 2B A top view of the seat frame and seat depth adjustment device of a vehicle seat;

[0062] Figure 4A :along Figure 3B A cross-sectional view of axis A;

[0063] Figure 4B :along Figure 3B A cross-sectional view of axis B;

[0064] Figure 4C :along Figure 3B A cross-sectional view of axis C;

[0065] Figure 5A : A top view of the seat portion frame and seat depth adjustment device of a vehicle seat according to another embodiment;

[0066] Figure 5B : Figure 5A Detailed view;

[0067] Figure 5C : Figure 5A Detailed view;

[0068] Figure 6A :according to Figure 5A A perspective view of the seat depth adjustment device from below;

[0069] Figure 6B : Figure 6A Detailed view. Detailed Implementation

[0070] In the accompanying drawings, the same components should be understood to have corresponding reference numerals. For clarity, some components may not have reference numerals in some figures, but are indicated elsewhere.

[0071] exist Figure 1A In the preferred embodiment, vehicle seat 1 is shown in a first state Z1 and... Figure 1BThe image shows the seat depth adjustment element 5 in the second state Z2. States Z1 and Z2 refer to the positions of the seat depth adjustment element 5 of the seat depth adjustment device 4. The first state Z1 describes the state where the seat depth adjustment element 5 is displayed at its minimum position, i.e., at the minimum position of the available seat surface. Correspondingly, the second state Z2 describes the state where the seat depth adjustment element 5 is at its maximum position, i.e., at the maximum position of the available seat surface. The second state Z2 is achieved by forward displacement of the seat depth adjustment element 5 in the longitudinal direction L, while the first state Z1 is achieved by backward displacement of the seat depth adjustment element 5 in the longitudinal direction L. The seat depth adjustment element 5 undergoes maximum backward displacement in the first state Z1 and maximum forward displacement in the second state Z2. The displacement of the seat depth adjustment element should be understood relative to the seat frame 2.

[0072] The vehicle seat 1 has a seat portion frame 2 and preferably a backrest frame 3. In addition, the vehicle seat 1 includes a seat depth adjustment device 4 with seat depth adjustment elements 5.

[0073] Figure 2A and Figure 2B A perspective view of the seat portion frame 2 with seat depth adjustment device 4 is shown, wherein the second state Z2 is in Figure 2A As shown in the diagram, and in the first state Z1 Figure 2B Shown in.

[0074] Preferably, the seat depth adjustment element 5 can be configured to be at least partially complementary to the seat portion frame 2, thereby improving the guidance of the seat depth element 5. Particularly preferably, a seat depth adjustment element guide 17 can be provided, which is centrally arranged relative to the seat depth adjustment element 5. Preferably, the seat depth adjustment element guide 17 is prismatic, thereby allowing the first extension hole 7 to be formed on the upper side 18.

[0075] according to Figure 2A and Figure 2B The diagram shows a second connecting element 8 and a third connecting element 10, wherein the second connecting element 8 is guided in a second extension hole 9 and the third connecting element 10 is guided in a third extension hole 11. Preferably, viewed in the height direction H, a first extension hole 7 is arranged above the second extension hole 9 and the third extension hole 11, so that the first connecting element 6 is also arranged at least partially above the second connecting element 8 and the third connecting element 10, thereby preventing further undesirable movement.

[0076] Preferably, viewed in the longitudinal direction L, the first connecting element 6 is arranged in front of the second connecting element 8 and the third connecting element 10, thereby preventing the seat depth adjustment element 5 from tilting.

[0077] Figure 3A It shows Figure 2A Top view, Figure 3B It shows Figure 2B Top view.

[0078] Because connecting elements 6, 8, and 10 are offset in the longitudinal direction L, extension holes 7, 9, and 11 are also offset relative to each other in the longitudinal direction L. Therefore, it is conceivable to provide a first offset element 19 for the second connecting element 8 and a second offset element 20 for the third connecting element 10, to achieve offset relative to the first connecting element 6 in the longitudinal direction L.

[0079] Therefore, the first protrusion 21 of the seat portion frame 2 is also provided for the second offset element 19 and the second protrusion 22 of the seat portion frame 2 is provided for the second offset element 20 so that all components can be arranged in a space-saving manner.

[0080] This is because a first mounting surface 23 for the seat depth adjustment element 5 is provided, on which seat cushions, seat covers, etc., will be applied to provide a seating surface. To achieve a seat surface as stepless as possible, a second mounting surface 24 for the seat portion frame 2 is provided, which, when viewed in the height direction H, is arranged at approximately the same height as the first mounting surface 23. The second mounting surface 24 for the seat depth adjustment element 5 is provided with seat cushions, seat covers, etc., to provide a seat surface.

[0081] Preferably, the second connecting element 8 and the third connecting element 10 are positioned substantially the same in the longitudinal direction L and the height direction H.

[0082] Connecting elements 6, 8, and 10 are largely the same and are combined Figures 4A to 4C To describe in more detail.

[0083] Figure 4A Showing Figure 3B A portion of the cross section along axis A, Figure 4B Showing Figure 3B A portion of the cross section along axis B, Figure 4C Showing Figure 3B A portion of the cross section along axis C.

[0084] Connecting elements 6, 8, and 10 have a first connecting element portion 13 with a first connecting portion 25 and a second connecting element portion 14 with a second connecting portion 26. Connecting element portions 13 and 14 are connected to each other, preferably screwed together. The first connecting portion 25 is directly connected to the seat depth adjustment element 5, and the second connecting portion 26 is indirectly connected to the seat portion frame 2 by means of a first spring unit 12. The first connecting portion 25 is positioned above the second connecting portion 26. Connecting elements 6, 8, and 10 extend through extension holes 7, 9, and 11.

[0085] Figure 4A The first connecting element 6 is shown, which is designed as a fixed bearing. Therefore, the fixed bearing is only allowed to move along the first extension hole 7.

[0086] The first spring element 12 is designed as a disc spring unit, which is arranged circumferentially around the first connecting element 6 and rigidly connected to the first connecting element 6 by means of a connecting region 27. The first spring element is in effective contact with the seat portion frame 2. The disc spring unit has a first portion 29 and a second portion 30. The first portion 29 is connected to the first connecting element 6 and extends through the first extension hole 7 and contacts the inner side 31 of the first extension hole 7. The second portion 30 is connected to the first portion 29 and extends radially in the height direction H. The second portion 30 is connected to the seat portion frame 2 and the second connecting portion 26.

[0087] The first width 28 of the extension hole 7 ensures that when the first spring element 12 is inserted, the first spring element 12 is compressed in the width direction B, i.e., a spring force is generated in the width direction B, and the first connecting element 6 is immovable in the width direction B. Therefore, in the unloaded state, the extension of the first spring element 12 in the width direction B is greater than the extension of the first extension hole 7 in the width direction B.

[0088] The first spring unit 12 is preferably rotationally symmetrical.

[0089] Figure 4B The cross section along axis B is shown.

[0090] Figure 4C A cross-section along axis C is shown, thus revealing the second connecting element 8. Regarding this... Figure 4C The same explanation also applies to the third connecting element 10.

[0091] As can be seen, the first offset element 19 is partially identifiable, thereby slidably connecting to the seat portion frame 2. The second width 32 of the second extension hole 9 thus causes the extension of the first spring element 12 in the width direction B under no-load conditions to correspond to the extension of the second extension hole 9 in the width direction B, i.e., the first spring element 12 is unloaded. Therefore, it is conceivable that the first spring element 12 of the second connecting element 8 can withstand force in order to compensate for manufacturing tolerances in the width direction B. For this purpose, the first offset element 19 is also formed at a certain distance from the second extension hole 9 in the width direction B, making movement in the width direction B substantially possible.

[0092] Viewed in the width direction B, the second extension hole 9 has a first portion 33 and a second portion 34, which are spaced apart from each other in the width direction B and extend at least partially in the height direction H and overlap with the first offset element 19.

[0093] Because the second connecting element 8 can move in the longitudinal direction L and the width direction B, the second connecting element 8 is a floating bearing.

[0094] Figures 5A to 5C An alternative embodiment is shown, wherein the seat portion frame 2 includes a first extension hole 7 and the seat depth adjustment element 5 includes a first guide element 35, wherein the first guide element 35 is configured to be guided in the first extension hole 7, and wherein a first connecting element 6 is also provided, wherein the first connecting element 6 extends through the first extension hole 7 and connects the seat depth adjustment element 5 to the seat portion frame 2.

[0095] The first guide element 35 is integrally formed with the seat depth adjustment element 5. Preferably, the first guide element 35 is formed complementary to the first extension hole 7 at least in the width direction B. This means that the first guide element 35 cannot move in the width direction B, therefore according to Figures 5A to 5C The first guide element 35 is described as a fixed bearing.

[0096] The first guiding element 35 has a through hole 15 extending in the height direction H. The through hole 15 is formed so that the first connecting element 6 can extend through the through hole 15.

[0097] Regarding the second extension hole 9 and similarly to the third extension hole 11, the seat depth adjustment element 5 has a second spring element 16 and a third spring element 40, each preferably also integrally formed as part of the seat depth adjustment element 5. The second spring element 16 and the third spring element 40 have a first end 36 and a second end 37, wherein the first end 36 is disposed around the through hole 15, representing the through hole 15. The second end 37 is formed as a leg, similar to a leg spring, and contacts the second extension hole 9 on its inner side 31. The second end 37 extends in the longitudinal direction L and has a bend in the width direction B, which effectively connects to the second extension hole 9, thereby allowing movement in the width direction B; a floating bearing is described.

[0098] Figure 6A and Figure 6B A perspective bottom view of an alternative embodiment is shown. The second spring element 16 is arranged to be mirror images of each other with respect to the second extension hole 9 and the third extension hole 11 with respect to the longitudinal direction L.

[0099] Figure 6BA close-up view of the described second spring element is shown. Furthermore, a first guide 38 and a second guide 39 are shown, which, when moved along the width direction B, can interact with the upward-pointing portions 33 and 34 of the corresponding extension holes 9.

[0100] Parts 33 and 34 are therefore arranged between the guides 38 and 39 and the second spring element 16.

[0101] All features disclosed in the application are required to be necessary for the invention, provided that they are new individually or in combination compared to the prior art.

[0102] List of reference numerals

[0103] 1. Vehicle seats;

[0104] 2. Seating section frame;

[0105] 3. Backrest frame;

[0106] 4. Seat depth adjustment device;

[0107] 5. Seat depth adjustment element;

[0108] 6. First connecting element;

[0109] 7. First extension hole;

[0110] 8. Second connecting element;

[0111] 9. Second extension hole;

[0112] 10. Third connecting element;

[0113] 11. Third extension hole;

[0114] 12 First spring unit;

[0115] 13 First connecting element section;

[0116] 14. Second connecting element section;

[0117] 15 Through holes;

[0118] 16. Second spring unit;

[0119] 17. Seat depth adjustment unit guide;

[0120] 18 upper side;

[0121] 19 First offset element;

[0122] 20 Second offset element;

[0123] 21 First protrusion;

[0124] 22 Second protrusion;

[0125] 23 First mounting surface;

[0126] 24 Second mounting surface;

[0127] 25 First connecting part;

[0128] 26. Second connecting part;

[0129] 27. Connecting areas;

[0130] 28 First width;

[0131] 29 Part One;

[0132] 30 Part Two;

[0133] 31. Inner side;

[0134] 32 Second width;

[0135] 33 Part One;

[0136] 34 Part Two;

[0137] 35 First guiding element;

[0138] 36 First end;

[0139] 37. Second end;

[0140] 38 First guide element;

[0141] 39. Second guide component;

[0142] 40. Third spring unit;

[0143] Z1 First state;

[0144] Z2 Second State;

[0145] H represents the height direction;

[0146] L represents the longitudinal direction;

[0147] B. Width direction.

Claims

1. A vehicle seat (1), wherein the vehicle seat (1) has a seat portion frame (2) and a seat depth adjustment device (4) with a seat depth adjustment element (5), wherein the seat depth adjustment element (5) is displaceable relative to the seat portion frame (2). Its features are, A first connecting element (6) is configured and designed to connect the seat depth adjustment element (5) to the seat portion frame (2) and guide the seat depth adjustment element (5) relative to the seat portion frame (2), the seat portion frame (2) having a first extension hole (7), wherein the first connecting element (6) extends through the first extension hole (7) and wherein the first connecting element (6) is guided by the first extension hole (7). The first connecting element (6) includes a first connecting portion (25) and a second connecting portion (26). The first connecting portion (25) is in direct contact with the seat depth adjustment element (5), and the second connecting portion (26) is in direct or indirect contact with the seat frame (2). The first connecting element (6) is formed by a first connecting element portion (13) and a second connecting element portion (14), which are at least non-fixedly connected to each other. A first spring unit (12) is provided, which at least partially surrounds the first connecting element (6) in the circumferential direction. The first spring unit (12) is connected to the seat portion frame (2) and the first connecting element (6) such that a spring force acts on the first connecting element (6) and the seat portion frame (2). The first spring unit (12) extends through the first extension hole (7) and the spring force acts in the vehicle seat height direction and in the vehicle seat width direction.

2. The vehicle seat (1) according to claim 1, Its features The first spring unit (12) is a disc spring unit.

3. The vehicle seat (1) according to claim 1, Its features The first spring unit (12) is made of plastic.

4. The vehicle seat (1) according to claim 1, Its features The first connecting element part (13) and the second connecting element part (14) are fixedly connected to each other.

5. The vehicle seat (1) according to any one of claims 1 to 4, Its features A second connecting element (8) and a third connecting element (10) are provided, the second connecting element (8) and the third connecting element (10) being configured and designed to connect the seat depth adjustment element (5) to the seat portion frame (2) and guide the seat depth adjustment element (5) relative to the seat portion frame (2), wherein the seat portion frame (2) has a second extension hole (9) and a third extension hole (11), wherein the second connecting element (8) extends through the second extension hole (9) and wherein the second connecting element (8) is guided by the second extension hole (9), wherein the third connecting element (10) extends through the third extension hole (11) and wherein the third connecting element (10) is guided by the third extension hole (11).

6. The vehicle seat (1) according to any one of claims 1 to 4, Its features The first extension hole (7) extends in the longitudinal direction (L).

7. The vehicle seat (1) according to claim 5, Its features The first extension hole (7), the second extension hole (9) and the third extension hole (11) are arranged to be parallel to each other.

8. A vehicle seat (1), wherein the vehicle seat (1) includes a seat portion frame (2) and a seat depth adjustment device (4) with a seat depth adjustment element (5), wherein the seat depth adjustment element (5) is displaceable relative to the seat portion frame (2). Its features The seat portion frame (2) has a first extension hole (7) and the seat depth adjustment element (5) has a first guide element (35), the first guide element (35) being designed to be guided in the first extension hole (7). It also includes a first connecting element (6), which extends through the first extension hole (7) and connects the seat depth adjustment element (5) to the seat portion frame (2). The first guide element (35) is formed to be complementary to the first extension hole (7) at least in the width direction (B), wherein a first spring unit (12) is provided, the first spring unit (12) at least partially surrounding the first connecting element (6) in the circumferential direction, the first spring unit (12) being connected to the seat portion frame (2) and the first connecting element (6) such that a spring force acts on the first connecting element (6) and the seat portion frame (2), wherein the first spring unit (12) extends through the first extension hole (7) and the spring force acts in the vehicle seat height direction and in the vehicle seat width direction.

9. The vehicle seat (1) according to claim 8, Its features The first guiding element (35) has a first through hole (15), through which the first connecting element (6) is received at least partially.

10. The vehicle seat (1) according to claim 8, Its features The first spring unit (12) is a disc spring unit.

11. The vehicle seat (1) according to claim 8, Its features A second connecting element (8) and a third connecting element (10) are provided, the second connecting element (8) and the third connecting element (10) being configured and designed to connect the seat depth adjustment element (5) to the seat portion frame (2) and guide the seat depth adjustment element (5) relative to the seat portion frame (2), wherein the seat portion frame (2) has a second extension hole (9) and a third extension hole (11), wherein the second connecting element (8) extends through the second extension hole (9) and wherein the second connecting element (8) is guided by the second extension hole (9), wherein the third connecting element (10) extends through the third extension hole (11) and wherein the third connecting element (10) is guided by the third extension hole (11).

12. The vehicle seat (1) according to claim 11, Its features A second spring element (16) is provided, the second spring element (16) having a first end (36) and a second end (37), the first end (36) being fixedly connected to the seat depth adjustment element (5) and the second end (37) contacting the second extension hole (9) to compensate for the tolerance of the seat depth adjustment element (5) relative to the second extension hole (9).

13. The vehicle seat (1) according to claim 11, Its features A second spring element (16) and a third spring element (40) are provided. The second spring element (16) has a first end (36) and a second end (37). The first end (36) is fixedly connected to the seat depth adjustment element (5), and the second end (37) contacts the second extension hole (9) to compensate for the tolerance of the seat depth adjustment element (5) relative to the second extension hole (9). The third spring element (40) has a first end (36) and a second end (37), wherein the first end (36) is fixedly connected to the seat depth adjustment element (5), and the second end (37) contacts the third extension hole (11) to compensate for the tolerance of the seat depth adjustment element (5) relative to the third extension hole (11).

14. The vehicle seat (1) according to any one of claims 8 to 13, Its features The first connecting element (6) is guided by the first extension hole (7). The first connecting element (6) includes a first connecting portion (25) and a second connecting portion (26). The first connecting portion (25) is in direct contact with the seat depth adjustment element (5), and the second connecting portion (26) is in direct or indirect contact with the seat frame (2). The first connecting element (6) is formed by a first connecting element portion (13) and a second connecting element portion (14), and the first connecting element portion (13) and the second connecting element portion (14) are at least non-fixedly connected to each other.

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