vehicle seat

Abstract

The vehicle seat (2) is in particular equipped with an easy-entry function and has a seat frame (4) which is arranged longitudinally adjustable on a longitudinal rail (6), as well as a locking element (24) which reversibly engages in the longitudinal rail (6) and a release element (22) which acts on the locking element (24) to release it and which can be moved from a basic position to a release position by means of an actuating mechanism (28).The actuating mechanism (28) has an actuating element (18) whose movement is transmitted to the unlocking element (22). The actuating mechanism (28) further has a spring element (26) designed such that, in the event of over-actuation, if the actuating element (18) travels beyond the unlocked position of the unlocking element (22), this travel is absorbed by the spring element (26) by compression. This prevents overloading of the mechanism.

Description

[0001] The invention relates to a vehicle seat with a seat frame which is arranged longitudinally adjustable on a longitudinal rail, with a locking element which engages in the longitudinal rail in a reversibly releasable manner, and with a release element which acts on the locking element to release it and which can be moved from a basic position to a release position by means of an actuating mechanism, wherein the actuating mechanism has an actuating element whose movement is transferred to the release element.

[0002] In vehicles equipped with an easy-entry function, this type of operating mechanism automatically releases the locking element, allowing the vehicle seat to be moved forward to facilitate access to the rear seats. Typically, this involves unlocking the seat back and folding it forward. This action pivots an operating lever attached to the seat frame, which contains the actuating element. This lever then engages other components of the operating mechanism to release the locking element.

[0003] The locking element engages regularly in recesses on the longitudinal rail in a form-fitting manner. For sufficient crash safety, the locking mechanism is designed like a toothed comb, meaning the locking element has several teeth arranged one behind the other in the longitudinal direction, which engage simultaneously in several recesses in the longitudinal rail.

[0004] Due to the large number of components involved in this unlocking mechanism, incomplete unlocking or over-actuation can occur due to component and assembly tolerances. In the case of over-actuation, the actuating element continues to travel even after the unlocking element has already reached its unlocked position. The unlocked position is typically defined by a mechanical stop. This additional travel is also referred to as overtravel. Such over-actuation leads to an overload of the entire unlocking mechanism.

[0005] Based on this, the present invention aims to provide a vehicle seat, in particular with an easy-entry function, which has such a release mechanism and in which overload due to an overtravel is at least reduced or avoided.

[0006] The problem is solved according to the invention by a vehicle seat with the features of claim 1. The vehicle seat is in particular equipped with an easy-entry function and has a seat frame which is arranged longitudinally adjustable on a longitudinal rail. Furthermore, a locking element, in particular a comb lock, is provided which engages positively in the longitudinal rail so that a longitudinal position of the seat frame is locked. The locking element is usually held in a locked position by a spring. The locking element can generally be moved from the locked position to a release position. For this purpose, a release element is provided which acts on the locking element to release it, wherein the release element can be moved from a home position to a release position by means of an actuating mechanism.

[0007] The unlocking element is, for example, a bolt or unlocking pin which engages the locking element and pushes it upwards, so that one or more locking teeth of the locking element are pushed out of the recesses in the longitudinal rail.

[0008] The actuating mechanism includes an actuating element whose movement is transferred to the unlocking element, thus moving it from its initial position to the unlocked position. In the version with the Easy-Entry function, the actuating element automatically performs an actuating movement when the Easy-Entry function is activated, for example, by tilting the seat frame.

[0009] The actuating mechanism further includes a spring element which is designed and arranged in such a way that in the event of over-actuation, i.e., when the actuating element exceeds the unlocking position, this excess travel is absorbed by the spring element by a compression.

[0010] The spring element is generally interposed between the actuating element and the unlocking element and acts as a buffer, compensating for the travel. The actuating movement and force exerted by the actuating element are therefore transmitted to the unlocking element primarily via the spring element. When the unlocking element reaches its unlocked position, a further movement (travel) of the actuating element actuates the spring element, so that the travel is absorbed by a deformation of the spring element, referred to here as compression. The travel is thus converted into a spring deflection by the compression of the spring element, during which two sections of the spring element are offset relative to each other.

[0011] This measure, along with the compensation of any overtravel by the spring element, reliably prevents overloading of the unlocking mechanism.

[0012] The unlocking position for the unlocking element is formed in particular by a mechanical stop, so that after reaching the unlocking position, further movement of the unlocking element is no longer possible.

[0013] The release element and the actuating mechanism, together with the locking element, form the release mechanism. At least parts of the actuating mechanism are usually attached to an upper rail, which is adjustable along the longitudinal rail that serves as the lower rail. The seat frame is also attached to this upper rail and is therefore adjustable along its length. The actuating mechanism, or at least parts of it, is usually located laterally on the upper rail.

[0014] The vehicle seat is equipped with an easy-entry function, and the actuating element is part of an operating lever attached to the seat frame, which is rotatably supported on the upper rail. When the vehicle seat or a backrest is tilted forward, the operating lever and thus the actuating element pivot, so that it acts on other parts of the actuating mechanism and finally, via these, on the release element, pushing upwards to achieve the desired unlocking.

[0015] In a preferred embodiment, the spring element has a predetermined spring preload, dimensioned such that the spring element only compresses after reaching the unlocked position. The spring element is therefore sufficiently stiff so that, during the unlocking process, the actuating movement exerted by the actuating element is initially transmitted directly and virtually rigidly to the unlocking element via the further actuating mechanism to move it into the unlocked position. Only when the unlocked position is reached does the subsequent actuating movement (travel) cause the spring element to compress. This ensures reliable unlocking and prevents the actuating movement exerted by the actuating element from potentially being insufficient for complete unlocking due to premature compression.

[0016] The locking element is preferably held in the locked position by means of a further spring element actuated by a spring force. Generally, the locking element is held in the locked position by a locking force, exerted in particular by the further spring element. The spring preload of the spring element is generally dimensioned such that any unlocking force acting on the locking element by the locking element exceeds the locking force. This also ensures a virtually rigid transmission chain of the individual components of the actuating mechanism for reliable unlocking until the unlocking element reaches its unlocked position.

[0017] In a preferred embodiment, the spring element is mounted against the unlocking element.

[0018] According to a first embodiment, the spring element is indirectly mounted against the release element via an interposed component of the actuating mechanism. In this case, for example, one end of the spring element acts on this component, so that the actuating force transmitted via the spring element is indirectly transferred from this component to the release element.

[0019] According to a second embodiment, the spring element is mounted directly against the release element, i.e., the spring element is in direct contact with the release element. This allows the actuating force to be transferred directly from the spring element to the release element.

[0020] In a practical embodiment, the actuating mechanism features an actuating rocker, which is attached laterally to the aforementioned upper rail. The actuating rocker is generally rotatably mounted about a pivot axis and has a first actuating arm, which acts on the release element, and a second actuating arm, upon which the actuating element acts. The actuating element thus causes the actuating rocker to pivot about the pivot axis, so that the first actuating arm pushes or pulls the release element from its home position into the unlocked position. The two actuating arms are therefore generally lever arms of the actuating rocker.

[0021] In the first variant described above, where the spring element acts indirectly on the unlocking element, the first actuating arm is, for example, the aforementioned component through which the actuating force is transmitted to the unlocking element. In this case, the spring element engages the first actuating arm, particularly with one end of the spring.

[0022] In the second variant described above, in which the spring element acts directly on the unlocking element, at least a part of the spring element forms the first actuating arm or is at least a part of this first actuating arm.

[0023] In a preferred embodiment, particularly for this second variant, the actuating rocker has a support element on which the spring element is mounted, with a free end of the spring element resting against the unlocking element.

[0024] The spring element is designed, for example, as a spring rod or a spring sheet, which extends from the pivot axis towards the release element and rests against it. In particular, a U-shaped curved spring rod is used, the two ends of which each form a free end that rests against the release element. A bearing is preferably attached to the support element, particularly in the area of ​​the pivot axis. The spring element is held at this bearing and projects freely from it towards the release element.

[0025] In general, regardless of the specific design, a spring element is preferably made of spring steel, in particular of bent spring steel.

[0026] Particularly in the first variant described above, where the spring element acts only indirectly on the unlocking element, the spring element is preferably positioned between two actuating arms that are adjustable relative to each other. One actuating arm acts on the unlocking element, and the actuating element acts on the other, second actuating arm. The two actuating arms are therefore generally mounted to be adjustable relative to each other, for example, linearly displaceable and / or rotatable. The spring element is mounted between these two actuating arms and thereby transmits an actuating movement from the second actuating arm to the first actuating arm.

[0027] The two actuating arms are preferably, but not necessarily, the actuating arms of an actuating rocker, as mentioned previously.

[0028] In a practical design, the two actuating arms are adjustable relative to each other, allowing for a specific relative position between the actuating element and the second actuating arm. This adjustability of the two actuating arms relative to each other makes it possible to compensate for and account for tolerance effects during assembly, such as assembly tolerances and / or component tolerances. This ensures that the actuating mechanism can be appropriately adjusted for each vehicle seat, for example, to minimize overtravel.

[0029] Preferably, the two actuating arms can be fixed in a desired relative position to each other and, in particular, locked together so that they retain the relative position once set for future unlocking operations.

[0030] In particular, a detent mechanism is designed, which has a detent contour with, in particular, several detent positions on one actuating arm and a detent element engaging with this detent contour on the other actuating arm. To adjust the relative position to each other, the two actuating arms therefore only need to be moved into the desired relative position, in which they are then held by the detent mechanism.

[0031] The locking mechanism is designed such that, upon initial unlocking of the locking element, the relative position between the second actuating arm and the actuating element is automatically adjusted by a relative displacement between the two actuating arms to compensate for the overtravel. During the initial unlocking, the actuating mechanism first pushes the unlocking element into the unlocked position. An additional travel distance (overtravel) then causes the actuating element to further actuate the second actuating arm, adjusting it relative to the first. This moves the locking element into a suitable detent position, in which the two actuating arms are then fixed relative to each other.

[0032] Preferably, the two actuating arms are adjustable relative to each other in only one direction, specifically in the direction of the actuating element's travel during unlocking. This supports the previously described automatic adjustment, as it enables the desired automatic adjustment while simultaneously preventing resetting. This unidirectional adjustability is preferably achieved through a suitable design of the detent mechanism, for example, by a suitable design of interacting detent flanks of the detent contour and the detent element.

[0033] In a preferred embodiment, the two actuating arms, which are adjustable relative to each other, are the two actuating arms of the actuating rocker described above.

[0034] The actuating arms are mounted in such a way that they can rotate relative to each other and are mounted atop one another. Specifically, they can rotate relative to each other about the pivot axis.

[0035] In this embodiment, the spring element is preferably designed as a torsion spring that acts between the two actuating arms; that is, one end of the spring acts on one actuating arm and the other end acts on the other actuating arm. Twisting the two actuating arms causes the torsion spring to tighten or loosen.

[0036] As mentioned previously, the driver's seat is equipped with an Easy-Entry function, such that unlocking occurs automatically when the Easy-Entry function is activated.

[0037] The actuating element is, in particular, part of an actuating lever that can pivot about a pivot axis. The actuating lever is rotatably attached to the seat frame on one side and pivotable about the pivot axis on the upper rail on the other. For the easy-entry function, a rear seat lock is preferably unlocked so that the seat frame can be folded forward. This causes the actuating lever to pivot about the pivot axis, so that the actuating element attached to the actuating lever is pivoted and pressed against the further actuating mechanism and specifically against the second actuating arm.

[0038] Exemplary embodiments of the invention are explained in more detail below with reference to the figures. These show, in some cases in simplified form: Fig. 1 a partial side view of a vehicle seat with easy-entry function, in which the seat frame is folded forward, wherein the vehicle seat has an actuating mechanism according to a first variant, Fig. 2 An enlarged representation of an actuating rocker of the actuating mechanism according to the one in the Fig. 1. First variant shown, Fig. 3 a partial perspective view of the vehicle seat in the area of ​​the actuation mechanism according to a second variant, Fig. 4 a partial side view in the area of ​​the actuation mechanism according to the second variant as well as Fig. 5 a perspective exploded view of an actuating rocker for the second variant of the actuating mechanism.

[0039] One in the Fig. The vehicle seat 2 shown in Figure 1 has a seat frame 4 and a rail system with a lower rail, designated as the longitudinal rail 6, and an upper rail 8 mounted thereon so as to be longitudinally displaceable. The seat frame 4 is attached to the upper rail 8 and, together with the upper rail 6, is mounted so as to be longitudinally displaceable. In the exemplary embodiment, the seat frame 4 is connected to the upper rail 8, for example, in the manner of a four-joint kinematic system, via a front pivot lever 10 and a lever located approximately in the middle and designated as the actuating lever 12. The seat frame 4 also has a seat lock 14 in its rear area, which, in the normal position, is locked by a crossbar 16 attached to the upper rail 8. Fig. Figure 1 shows the unlocked position, in which the seat frame 4 for the Easy-Entry function is already folded forward and upward, thus enabling simplified access to a rear row of seats.

[0040] When the seat frame 4 pivots forward, an actuating movement of the operating lever 12 is transmitted via an actuating element 18 molded onto it to an actuating rocker 20. This element is thereby moved from a home position to an unlocked position; in the exemplary embodiment, the unlocking element 22 is pushed upwards.

[0041] In this process, a locking element 24 is moved from an unlocked position to a release position. In the exemplary embodiment, the locking element 24 is designed like a comb with multiple teeth and forms a so-called comb-like toothing with the longitudinal rail 6. For this purpose, a plurality of individual recesses are provided in the longitudinal rail 6, which are arranged in a longitudinal direction and into which a tooth of the locking element 24 engages. The locking element 24 is preferably held in the locked position by a spring element, in a manner not shown in detail here.

[0042] As shown by the Fig. 1 but also based on the Fig. As can be seen in Figure 3, the actuating element 18 in the exemplary embodiment is designed as a tab projecting from the rest of the actuating lever 12, which is bent over, particularly at its end, and thus extends in a transverse direction. The actuating lever 12 is rotatably mounted on a tab attached to the upper rail 8 about a pivot axis D.

[0043] The actuating rocker 20 is pivotally mounted on the upper rail 8 about a pivot axis S. The actuating rocker 20 is positioned transversely next to the upper rail 8.

[0044] The actuating rocker 20, in both embodiments, has a first actuating arm 20A, which interacts with the unlocking element 22 and transmits an actuating force to it. Additionally, the actuating rocker 20 has a second actuating arm 20B, on which the actuating element 18 acts. For the force transmission between the actuating element 18 and the actuating arm 20B, as well as for the force transmission to the locking element 22, the actuating arms 20A and 20B are each appropriately designed and, for example, have corresponding contact surfaces or support surfaces that extend in the transverse direction.

[0045] In both embodiments, the unlocking element 22 is preferably clamped or locked into the first actuating arm 20A, i.e., it is clamped between an upper area and a lower area of ​​the first actuating arm 20A.

[0046] During the Fig. In the first embodiment shown in Figure 2, the first actuating arm 20A has a support surface at its end and a clamping tab opposite it, between which the release element 22 is located in the assembled state.

[0047] The unlocking element 22 is - as can be seen in particular from Fig. 3 can be seen – in particular, it is designed in the form of a transverse bolt, which extends in the transverse direction and is also referred to as a release pin. The release element 22 is guided into the upper rail 8 via a lateral opening and engages with the locking element 24. The release element 22 can be moved from a lower initial position upwards into an unlocked position, in which it preferably abuts a mechanical stop, which is formed, for example, by an upper edge of the lateral opening in the upper rail. Alternatively, a mechanical stop is provided to limit the movement of the locking element 24.

[0048] In both versions, a spring element 26 is attached to the actuating rocker 20. The actuating rocker 20, the spring element 26, and the actuating element 18 form an actuating mechanism 28.

[0049] The actuating mechanism 28 together with the unlocking element 22 and the locking element 24 forms an unlocking mechanism.

[0050] The unlocking mechanism therefore comprises a large number of individual, interacting components. Due to assembly and component tolerances, the problem arises that the travel exerted by the actuating element 18 and transmitted to the locking element 24 for unlocking can vary from seat to seat. This can lead to incomplete unlocking if the travel is too short, or to over-actuation if it is too long. Over-actuation, in this context, refers to a travel or actuation of the actuating element 18 that occurs after the unlocking element 24 has already reached its unlocked position. In this unlocked position, the unlocking element 24 can no longer be moved.

[0051] The spring element 26 is now generally designed and arranged such that it compresses in the event of over-actuation and thus absorbs the excess travel without further stressing the actuating mechanism. Therefore, if the actuating element performs an excess travel after reaching the unlocked position of the unlocking element, this excess travel is absorbed by the spring element through compression, so that the further adjustment movement (excess travel) of the actuating element 18 is decoupled from the unlocking element 22 by this compression.

[0052] The spring element 26 has a sufficiently high spring preload so that it does not compress before the unlocked position is reached. This ensures that, until the unlocked position is reached, a virtually rigid force transmission from the actuating element 18 to the unlocking element 22 is guaranteed. Only when the unlocked position is reached does the spring element 26 compress and absorb the travel.

[0053] In the first version, as it appears in the Fig. 1 and Fig. As shown in Figure 2, the two actuating arms 20A, 20B are rotatably mounted to one another about the pivot axis S, with the spring element 26 acting between the two actuating arms 20A, 20B. The spring element 26 is specifically designed as a torsion spring, which is supported at one end against one actuating arm 20A and at the other end against the other actuating arm 20B.

[0054] If the unlocking element 22 is in its unlocked position, a further adjustment movement (overtravel) merely results in the second actuating arm 20B being pushed further downwards by the actuating element 18 and being rotated around the pivot axis S relative to the first actuating arm 20A, against the spring force of the spring element 26.

[0055] The actuating mechanism 28 according to the first design variant of the Fig. 1 and Fig. 2 is further equipped with an automatic adjustment mechanism for adjusting the relative position between the two actuating arms 20A, 20B and thus also for adjusting the relative position between the second actuating arm 20B and the actuating element 18.

[0056] For this purpose, the two actuating arms 20A, 20B have a detent mechanism, which is formed by a detent contour 30 on one actuating arm, in the exemplary embodiment on the first actuating arm 20A and a detent element 32 engaging in this on the other actuating arm, in the exemplary embodiment on the second actuating arm 20B.

[0057] Upon initial unlocking, the overtravel causes the two actuating arms 20A, 20B to rotate relative to each other. During this process, the detent element 32 successively engages in various detent recesses of the detent contour 30 until the end position is reached and the overtravel is compensated. This detent effectively fixes this relative position between the two actuating arms 20A, 20B.

[0058] The entire locking mechanism is now designed such that adjustment of the locking position can only occur in one direction, namely towards the unlocking element 22, i.e., in the direction of the actuating element 18's movement during unlocking. In the exemplary embodiment, this corresponds to a clockwise direction of rotation. Adjustment in the opposite direction is blocked by the locking mechanism. This is achieved, for example, by a corresponding design of the corresponding locking flanks on the locking contour 30 and / or on the locking element 32.

[0059] In the exemplary embodiment, the first actuating arm 20A has a curved arm, with the detent contour 30 and an inner recess of the first actuating arm 20A formed on the inside of this arm. Correspondingly, the second actuating arm 20B has a detent lug that forms the detent element 32, which engages in the recess. During relative rotation, the second actuating arm 20B therefore partially retracts into the first actuating arm 20A.

[0060] This automatic adjustment compensates for tolerance inaccuracies. The detent position, once set, is retained. Any initial overtravel is thereby at least reduced, as it is at least partially compensated for by the change in the relative position of the two actuating arms 20A, 20B to each other.

[0061] This automatic adjustment offers the distinct advantage of reducing inaccuracies due to tolerances. This allows for lower requirements regarding assembly and component tolerances. Preferably, the components of the release mechanism are initially assembled in such a way that an override occurs during the first unlocking operation, reliably ensuring secure unlocking.

[0062] In connection with the Fig. Sections 3 to 5 below explain the second variant for compensating for any overtravel by a compression of a spring element 26: In this second variant, an actuating rocker 20 is also provided, which is pivotably mounted about the pivot axis S. The spring element 26 is part of, or forms, the first actuating arm 20A. The spring element 26 rests directly against the release element 22, preferably from below. As in the first variant, the release element 22 is pressed upwards to unlock. In this second variant, the spring element 26 is specifically designed as a spring rod, and in particular as a U-shaped bent spring rod. Its free ends 34 rest against the release element 22.

[0063] As can be seen particularly from the Fig. 4 and Fig. As can be seen in Figure 5, the actuating rocker 20 has a support element 36 on which the spring element 26 is mounted. In the exemplary embodiment, a bearing point is formed, particularly in the region of the pivot axis S, and preferably on the underside of the support element 36. This bearing point is specifically designed as an annular bearing for a respective rod section. At its rear end, the support element 36 in the exemplary embodiment also has a web against which the spring element 26 is supported, particularly with its U-shaped curved end section. As can be seen specifically in the exploded view according to Figure 5, the spring element 26 has a support element 36 on which the spring element 26 is supported. Fig. As can be seen in Figure 5, the spring element 26 can be inserted into the support element 36 from the rear. The support element 36, together with the spring element 26, forms the actuating rocker 20. In its front area, the support element 36 has a longitudinally oriented clamping tab 38, which is preferably bent at its end. In the assembled end position, the release element 22 is clamped between the clamping tab 38 and the spring element 26.

[0064] When unlocking, the actuating lever 12 is again (see in particular the following). Fig. 3) pivoted clockwise so that the actuating element 18 acts on the second actuating arm 20B.

[0065] In this embodiment, this is achieved indirectly via an actuating lever 40, which is fixedly attached to a rotary rod 42. An actuating rod 44 is attached to the rotary rod, allowing the user to manually unlock the seat independently of the easy-entry function. The actuating rod 44 is, for example, connected to a handle lever, which the user can use to manually unlock the seat and adjust it to a desired seating position.

[0066] In any case, the adjusting movement of the actuating element 18 leads to a rotation of the actuating rocker 20 clockwise around the pivot axis S, so that the first actuating arm 20A pushes the unlocking element 22 upwards into its unlocked position.

[0067] In this embodiment, a transition now leads to the spring element 26 being deflected after reaching the unlocked position by bending the free ends 34 of the spring element 26 downwards.

[0068] The compensation of the travel using a spring element 26 is explained in the exemplary embodiments with reference to an actuating rocker 20, but is not limited to this. For example, it is also possible to use a linear spring element in which two sections are linearly offset from each other when compressed, as is the case, for example, with a coil spring. For example, the support surface of the actuating mechanism 28, on which the actuating element 18 engages, is mounted in a way that allows it to be linearly displaceable and resilient. Reference symbol list 2 vehicle seats 4 seat frame 6 Longitudinal rail 8 Upper rail 10 Linkage levers 12 operating levers 14 Seat lock 16 crossbars 18 Actuating element 20 rocker switch 22 Release element 24 locking element 26 spring element 28 Actuating mechanism 30 Rast contour 32 locking elements 34 Free Ends 36 support element 38 clamping tab 40 adjusting levers 42 Rotary rod 44 Actuating rod D axis of rotation S swivel axis

Claims

[1] Vehicle seat (2) with a seat frame (4) which is arranged longitudinally adjustable on a longitudinal rail (6), with a locking element (24) which engages reversibly in the longitudinal rail (6) and with a release element (22) which acts on the locking element (24) to release it and which can be moved from a home position to a release position by means of an actuating mechanism (28), wherein the actuating mechanism (28) has an actuating element (18) whose movement is transmitted to the release element (22), wherein the actuating mechanism (28) has a spring element (26) which is designed such that in the event of over-actuation, when an overtravel is carried out by the actuating element (18) after reaching the release position of the release element (22), this overtravel is absorbed by the spring element (26) by a spring action. [2] Vehicle seat (2) according to the preceding claim, wherein the spring element (26) has a predetermined spring preload which is dimensioned such that the spring element (26) only compresses after reaching the unlocked position. [3] Vehicle seat (2) according to one of the preceding claims, wherein the locking element (24) is spring-operated with a locking force held in the locking position and wherein the spring preload is dimensioned such that an unlocking force acting on the locking element (24) by the unlocking element (22) exceeds the locking force. [4] Vehicle seat (2) according to one of the preceding claims, wherein the spring element (26) is mounted against the unlocking element (22) and in particular directly abuts it. [5] Vehicle seat (2) according to one of the preceding claims, wherein the actuating mechanism (28) has an actuating rocker (20) rotatably mounted about a pivot axis (S), with a first actuating arm (20A) which acts on the unlocking element (22) and with a second actuating arm (20B) on which the actuating element (18) acts. [6] Vehicle seat (2) according to the preceding claim, wherein the actuating rocker (20) has a support element (36) on which the spring element (26) is mounted, wherein a free end of the spring element (26) rests against the release element (22) and the spring element (26) is in particular designed as a spring rod. [7] Vehicle seat (2) according to one of claims 1 to 5, wherein the spring element (26) is effective between two actuating arms (20A, 20B) that are adjustable relative to each other and the first actuating arm (20A) acts on the unlocking element (22) and the actuating element (18) acts on the second actuating arm (20B). [8] Vehicle seat (2) according to the preceding claim, wherein the two actuating arms (20A, 20B) are adjustable in their relative position to each other, so that a relative position between the actuating element (18) and the second actuating arm (20B) can be set. [9] Vehicle seat (2) according to the preceding claim, wherein the two actuating arms (20A, 20B) can be fixed in a desired relative position to each other and in particular can be locked in place. [10] Vehicle seat (2) according to one of the two preceding claims, wherein, by means of a locking mechanism (30, 32), an automatic adjustment of the relative position between the second actuating arm (20B) and the actuating element (18) is carried out upon the first unlocking of the locking element (24) as a result of a relative displacement between the two actuating arms (20A, 20B) to compensate for the overtravel. [11] Vehicle seat (2) according to one of claims 8 to 10, wherein the two actuating arms (20A, 20B) are adjustable in their relative position only in one direction, namely in the direction of the movement of the actuating element (18). [12] Vehicle seat (2) according to one of claims 7 to 11, wherein the two actuating arms (20A, 20B) are the two actuating arms (20A, 20B) of the actuating rocker (20) according to claim 5. [13] Vehicle seat (2) according to one of claims 7 to 12, wherein the two actuating arms (20A, 20B) are rotatable relative to each other, in particular rotatable about the pivot axis (S). [14] Vehicle seat (2) according to one of claims 7 to 13, wherein the spring element (26) is designed as a torsion spring which is effective between the two actuating arms (20A, 20B). [15] Vehicle seat (2) according to one of the preceding claims, which is equipped with an easy-entry function, such that unlocking occurs automatically when the easy-entry function is activated, wherein in a preferred embodiment the actuating element (18) is part of an actuating lever (12) which can be pivoted about a pivot axis (D) and by means of which the seat frame (4) is connected to an upper rail (8) which is mounted on the longitudinal rail (6).

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