Vehicle seat

Abstract

The utility model relates to a vehicle seat, comprising a longitudinal adjustment system having a first adjustment part, which can be adjusted in the longitudinal direction relative to a second adjustment part, a locking device and an operating part, which is movably mounted on the first adjustment part, a seating part, and an adjustment lock, the first adjusting part can be locked relative to the second adjusting part by means of a locking device, the locking device can be unlocked by actuating the operating part, and the seating part is supported on the second adjusting part through the first adjusting part. The adjustment lock has a locking element mounted on the operating part and a mating locking element fixed on the second adjustment part, the locking element being lockable with the mating locking element in at least one position of the first adjustment part relative to the second adjustment part.

Description

Technical Field

[0001] The utility model relates to a vehicle seat. Background Art

[0002] Depending on the corresponding place of use, especially the shape and size of the door opening of a vehicle with a vehicle seat, it may be desirable to free up as large an access area as possible. For this purpose, it is conceivable, for example, a vehicle seat in which the front folding of the backrest is combined with the unlocking of a longitudinal adjustment system in order to bring the vehicle seat into a convenient access position. However, in these cases, for example when the vehicle is on an uphill slope, the vehicle seat often automatically moves back from the convenient access position towards the use position due to its gravity. This can make it difficult to get into the vehicle and may also pose a risk of injury.

[0003] DE 10 2020 205 108 A1 describes a vehicle seat having a locking section integrated on a kinematic link for comfortably locking and unlocking the vehicle seat in a convenient access position.

[0004] DE 36 08 827 A1 describes a vehicle seat that can be longitudinally moved by tilting its backrest. However, the function of this vehicle seat is based on a relatively complex link design. Summary of the Utility Model

[0005] The task of the utility model is to describe a vehicle seat that is constructed as simply as possible.

[0006] This task is solved by a vehicle seat as follows.

[0007] Thus, the vehicle seat includes a longitudinal adjustment system and a seating part. The longitudinal adjustment system has a first adjustment part, a locking device, and an operating part movably supported on the first adjustment part. The first adjustment part can be adjusted longitudinally relative to a second adjustment part, and the first adjustment part can be locked relative to the second adjustment part by means of the locking device. The locking device can be unlocked by manipulating the operating part. The seating part is supported on the second adjustment part by the first adjustment part. In addition, the vehicle seat includes an adjustment lock having a locking element mounted on the operating part and a mating locking element fixed to the second adjustment part. Here, the locking element can be locked with the mating locking element in at least one position of the first adjustment part relative to the second adjustment part.

[0008] This structure allows locking with a particularly small number of additional components, for example, locking in the forward-shifted position of the vehicle seat. The additional components can also be implemented with a simple structure and can be simply manufactured, so that a vehicle seat that is constructed particularly simply can be achieved.

[0009] For example, the locking of the locking element and the mating locking element can be released by manipulating the operating part. This allows for particularly intuitive operation. The operating part also acquires a dual function, which contributes to simple construction.

[0010] The vehicle seat can include a kinematic system by which the seating part can move between at least one occupiable use position and a position shifted forward in the longitudinal direction. The kinematic system optionally connects the seating part to a longitudinal adjustment system. The kinematic system can include one or more pivot rods. Such a kinematic system enables a particularly far-forward shifted convenient access position for particularly comfortable getting in.

[0011] The kinematic system can be locked, for example, in the use position. Thereby, accidental adjustment of the seating part can be prevented.

[0012] Optionally, the vehicle seat includes an unlocking device by manipulating which the kinematic system and / or the longitudinal adjustment system can be unlocked, in particular the kinematic system and the longitudinal adjustment system can be unlocked together. This enables particularly intuitive and simple operation.

[0013] The kinematic system can have a hinge multi-link mechanism. For example, the kinematic system forms a hinge four-bar mechanism or a hinge seven-bar mechanism. Thus, the kinematic system can include, for example, at least two pivot rods each configured to be pivotable using the seating part and a first adjustment part.

[0014] Optionally, the locking element is spring-elastic. Thus, the locking element for locking with the mating locking element can be latched onto the mating locking element in a simple manner. This enables a simple and at the same time particularly stable design.

[0015] For example, the locking element is configured in the form of a leaf spring. Such a locking element can be manufactured particularly simply.

[0016] In addition, the mating locking element can have a lead-in ramp for the locking element. For example, a spring-elastic locking element can slide along the lead-in ramp in a particularly simple manner for locking. Alternatively, it can also be provided that the locking element is rigid and / or has a lead-in ramp, and the mating locking element is spring-elastic.

[0017] Optionally, the locking element has an eyelet. It can be provided that the mating locking element can be locked by being inserted into the eyelet. This enables a particularly stable and secure insertion of the mating locking element.

[0018] The locking element can be fastened to an arm of the operating part, in particular a lower arm, by means of which the locking device of the longitudinal adjustment system can be unlocked. Thereby, further simplification of the structure can be achieved.

[0019] The vehicle seat can also have an unlocking element pivotally supported on a first adjusting part, and the arm is operatively connected to the locking device of the longitudinal adjustment system by means of the unlocking element. This enables effective force transmission.

[0020] The operating part can in particular have a manually operable gripping section. The gripping section can be configured in a rod shape. This allows for particularly simple manufacture and intuitive operation.

[0021] The operating part is, for example, pivotally supported on the first adjusting part. This enables a particularly simple mechanical mechanism.

[0022] Optionally, the operating part is pre-tensioned by a spring into a position where the locking element can be locked with a mating locking element. Thus, it can be ensured that locking is achieved in the convenient access position.

[0023] The adjusting parts can move relative to each other along an adjustment path, wherein the locking element and the mating locking element are configured to lock the adjusting parts to each other at the ends of the adjustment path. Thereby, the vehicle seat can be comfortably held in the end positions. The adjusting parts can in particular be configured in the form of an upper track and a lower track. Thus, a particularly far-forward shifted convenient access position is possible, which is still comfortably latched with a small number of components. Description of the Drawings

[0024] Subsequently, the concept on which the present utility model is based will be elaborated in detail with reference to the embodiments shown in the drawings.

[0025] In the schematic diagrams:

[0026] Figure 1 A view of a vehicle seat having a seating part and a backrest is shown;

[0027] Figure 2 A view of the longitudinal adjustment system of a vehicle seat having an adjustment lock is shown; and

[0028] Figures 3 to 7 A view of the locking element and the mating locking element of the adjustment lock in different positions of the vehicle seat is shown. Detailed Description of the Embodiment

[0029] Figure 1 The schematically shown vehicle seat 1 has a seating part 10 and a backrest part 15 pivotally arranged relative to the seating part 10 via a swivel fitting mechanism 14, and the backrest part has a headrest 16. A seat user can sit on the seating part 10. Via the swivel fitting mechanism 14, the backrest part 15 can be swung relative to the seating part 10 in order to adjust the tilt position of the backrest part 15 relative to the seating part 10 and / or to bring the backrest part 15 into a forward-swing position.

[0030] This vehicle seat 1 can be configured as a front seat in a vehicle. However, this vehicle seat 1 can also be used, for example, as a rear seat in the second row of seats in a vehicle.

[0031] In the example shown, the seating part 10 of the vehicle seat 1 is coupled to the longitudinal adjustment system 13 via a kinematic system 12. The longitudinal adjustment system 13 bears the seating part 10. Since the backrest part 15 is supported on the seating part 10 in the example shown, the longitudinal adjustment system 13 also bears the backrest part 15. Thus, the gravity of the seating part 10 (and the backrest part 15), as well as the gravity of the seat user (if the seat user is sitting on the vehicle seat 1), is introduced into the longitudinal adjustment system 13 via the kinematic system 12.

[0032] The seating part 10 (together with the kinematic system 12 and the backrest part 15) can be connected to the vehicle floor FB of the vehicle via the longitudinal adjustment system 13 in a longitudinally adjustable manner and according to Figure 1 the connection. The longitudinal adjustment system 13 includes a first adjustment part in the form of an upper rail 130 here, which is movably supported in a longitudinal direction X on a second adjustment part in the form of a lower rail 131 here. The lower rail 131 can be fixedly connected to the vehicle floor FB and according to Figure 1 the connection. Currently, the vehicle seat 1 includes two such pairs of rails, which are located on one side of the vehicle seat 1 respectively. The vehicle seat can be adjusted in the longitudinal direction X by means of the longitudinal adjustment system 13.

[0033] The longitudinal adjustment system 13 includes a locking device 133, by means of which the upper rail 130 can be locked relative to the lower rail 131, that is, can be locked with the lower rail 131.

[0034] Currently, the adjustment part of the longitudinal adjustment system 13, that is, the upper rail 130 together, serves as the basis of the kinematic system 12.

[0035] The locking device 122 of the kinematic system 12 fixes the vehicle seat 1 in the use position, in which the seat user can sit on the seating part 10. If this locking device 122 is released, then the kinematic links 120, 121 of the kinematic system 12 can swing relative to the upper rail 130, so that the vehicle seat 1 can be transferred from the use position to a position shifted forward relative to this use position for providing an entry position. The seating part 10 is movably connected to the upper rail 130 via the kinematic links 120, 121 relative to the upper rail 130. Optionally, the kinematic system 12 is also used to adjust the seat height and allows different use positions to be set.

[0036] As will be explained in greater detail below, the vehicle seat 1 can be transferred into the entry position by a pivoting movement by means of the kinematic system 12 and a displacement movement by means of the longitudinal adjustment system 13. The entry position can also be referred to as the easy entry position.

[0037] The vehicle seat 1 comprises an unlocking device 17, which is illustrated here as an unlocking lever by way of example. Actuation of the unlocking device 17 leads to unlocking of the locking device 122 of the kinematic system 12 and the locking device 133 of the longitudinal adjustment system 13. In the example shown, a Bowden cable is provided, which can be pulled by the unlocking device 17 in order to unlock the two locking devices 122, 133. The vehicle seat 1 can then be pivoted forward and moved.

[0038] Figure 2 Two rails 130, 131 of the longitudinal adjustment system 13 are shown. In this case, it is pointed out that Figure 2 One of the two sides of a vehicle seat 1 is shown, wherein the vehicle seat 1 comprises a second side, in particular a mirror-image-constructed second side. Figure 2 The description of the side shown applies analogously to Figure 1 The second side of the vehicle seat 1 is shown.

[0039] Figure 1 The first kinematic bar 120 shown at the rear with respect to the longitudinal direction X is supported on the upper rail 130 in a manner that it can pivot on a rear pivot bearing S1. The second kinematic bar 121 at the front with respect to the longitudinal direction X is supported on the upper rail 130 in a manner that it can pivot about a front pivot bearing S2. In addition, the kinematic bars 120, 121 are each supported in a pivotable manner on the seating part 10. The upper rail, the two kinematic bars 120, 121 and the seating part 10 together form an articulated four-bar mechanism.

[0040] The articulated four-bar mechanism of the kinematic system 12 is designed so that the seating part 10 is first raised and then lowered again when it is displaced forwards or backwards between the use position and the easy entry position. The kinematic system 12 can therefore also be referred to as "bunny hop kinematics". Thus, a large forward displacement into the easy entry position is possible. This movement is currently supported by a preloaded spring 123, which preloads the seating part 10 in the direction of the easy entry position. The spring 123 is designed in the form of a helical spring extending around the pivot axis defined by the front pivot bearing S2.

[0041] In the example shown, the locking device 133 of the longitudinal adjustment system 13 has a comb-shaped part, which is supported on the upper rail 130 in a movable manner, for example in a pivotable manner, and can be locked into a hole on the lower rail 131 (for example, see Figure 1) The locking device 133 can be unlocked by a pin 137. Currently, the pin 137 can be displaced in a gap in the upper track 130, so that the comb-shaped part is lifted out of the hole and the relative movement of the tracks 130, 131 is released.

[0042] To unlock the locking device 133, an unlocking element 139 is provided. The unlocking element 139 is pivotably supported on the upper track 130 about a pivot axis. The lever arm of the unlocking element 139 is operatively connected to the pin 137. The pivoting movement of the unlocking element 139 raises the pin 137, thereby releasing the locking of the tracks 130, 131. The unlocking element 139 also has an additional lever arm.

[0043] To effect the pivoting movement of the unlocking element 139, the vehicle seat 1 includes an operating part 132. The operating part 132 is pivotably supported on the upper track 130. The operating part has a gripping section 135. The gripping section 135 is formed by a bent rod and can also be referred to as a "towel rod". The seat user can manipulate, more precisely: pull the gripping section 135 upwards. The operating part 132 also includes an arm 134. Currently, the operating part 132 also includes a rod 138 to which the gripping section 125 and the arm 134 are fastened, where other design variants are also conceivable. The rod 138 is straight. The gripping section 135 and the arm 134 are fixedly connected to each other via the rod 138 and are pivotably supported on the upper track 130. The spring 136 is spring-elastic preloaded and presses against the operating part 132 in the opposite direction to the unlocking position.

[0044] The arm 134 of the operating part 132 cooperates with the unlocking element 139, that is, currently with the additional lever arm of the unlocking element 139. If the arm 134 of the operating part 132 pivots relative to the upper track 130, then the arm 134 presses against the additional lever arm of the unlocking element 139, thereby pivoting the unlocking element.

[0045] The vehicle seat 1 also includes an adjustment lock 11, which has a locking element 110 mounted on the operating part 132 and a mating locking element 111 fastened to the second adjustment part (i.e., here the lower track 131), where the locking element 110 can be locked relative to the second adjustment part (i.e., the lower track 131) with the mating locking element 110 in at least one position of the first adjustment part (i.e., here the upper track 130).

[0046] The locking element 110 is currently mounted on the arm 134 of the operating part 132. The locking element 110 is configured in the form of a spring, i.e., in the form of a leaf spring in the illustrated example, where a coil spring or a spring of a different configuration is also conceivable. The locking element 110 is located on the arm 134 in a planar manner. The locking element is fastened on the arm 134 in the end region of the arm 134. The locking element 110 has an eyelet 113 at the opposite end. The locking element 110 is bent in the region of the eyelet 113, i.e., is currently bent in a U-shape.

[0047] The mating locking element 111 is fastened to the lower track 131. The mating locking element is currently bent in an S-shape. The mating locking element 111 has an open end. This open end can be locked with the locking element 110. For this purpose, the mating locking element 111 has a guiding ramp 112 along which the locking element 110 can slide during the movement of the upper track 130 relative to the lower track 131. Here, the locking element is elastically bent like a spring. When moving into the convenient access position, the eyelet 113 is lifted during the sliding along the guiding ramp 112 and snaps back once it has been pushed above the open end of the mating locking element 111. Thus, the eyelet 113 forms a locking engagement with the mating locking element 111. Here, the locking element 110 and the mating locking element 111 are configured to lock the tracks 130, 131 with each other at the end of the adjustment path.

[0048] This position is shown in Figure 3 and Figure 4 The eyelet 113 engages with the mating locking element 111, thereby preventing the upper track 130 from moving back relative to the lower track 131 in the direction towards the use position. The eyelet 113 strikes the open end of the mating locking element 111 and thus prevents further movement.

[0049] If the vehicle seat 1 should now be moved back from the forward-shifted position, i.e., the convenient access position, into the use position again, then it is sufficient to operate the operating part 132. This can be achieved manually at the gripping section 135. Optionally, the unlocking device 17 is configured to swing the operating part 132.

[0050] Figure 5 Shown is the operating part 132 in a position elevated compared to Figure 3 and Figure 4 In addition, the position of the locking element 110 is visible in this position of the operating part 132. The locking element 110, specifically the eyelet 113 of the locking element 110, is lifted from the mating locking element 111 and disengages from it.

[0051] Thus, through this unlocking, the upper track 130 together with the part of the vehicle seat 1 mounted thereon can be moved back from the forwardly displaced position to the use position relative to the lower track 131.

[0052] Figure 6 It is shown that the upper track 130 together with the part of the vehicle seat 1 mounted thereon has been moved back a certain distance from the forwardly displaced position towards the use position relative to the lower track 131.

[0053] Thus, the locking of the locking element 110 with the mating locking element 111 can be released in a simple manner by manipulating the operating part 132.

[0054] Finally, Figure 7 It is shown the position when the vehicle seat 1 is displaced forward again into the convenient access position, in which, when the operating part 132 is not manipulated, the locking element 110 strikes the lead ramp 112 of the mating locking element 111. From this point on, a further forward movement of the upper track 130 results in the eyelet 113 sliding along the lead ramp 112 and then latching onto the rigid mating locking element 111.

[0055] The operating part 132 is pre-tensioned by a spring 136 into the position where the locking element 110 can be locked with the mating locking element 111.

[0056] With the described adjustment lock 11, the number of components can be kept particularly low. In addition, the installation is particularly simple and no additional support positions are required. Painting of individual components can also be dispensed with.

[0057] It should be mentioned that, alternatively, the locking element 110 can instead be constructed rigidly, while the mating locking element 111 can be constructed spring-elastic, for example also in the form of a leaf spring.

[0058] List of reference numerals

[0059] 1 vehicle seat

[0060] 10 seating part

[0061] 11 adjustment lock

[0062] 110 locking element

[0063] 111 mating locking element

[0064] 112 lead ramp

[0065] 113 eyelet

[0066] 12 kinematic system

[0067] 120 first kinematic link

[0068] 121 Second kinematic link

[0069] 122 Locking device

[0070] 123 Spring

[0071] 13 Longitudinal adjustment system

[0072] 130 First adjustment part (upper track)

[0073] 131 Second adjustment part (lower track)

[0074] 132 Operating part

[0075] 133 Locking device

[0076] 134 Arm

[0077] 135 Gripping section

[0078] 136 Spring

[0079] 137 Pin

[0080] 138 Rod

[0081] 139 Unlocking element

[0082] 14 Rotating fitting mechanism

[0083] 15 Backrest part

[0084] 16 Headrest

[0085] 17 Unlocking device

[0086] FB Vehicle floor

[0087] S1, S2 Pivot bearings

[0088] X Longitudinal direction

Claims

1. Vehicle seat (1), said vehicle seat comprising: - A longitudinal adjustment system (13), said longitudinal adjustment system having a first adjustment part (130), a locking device (133) and an operating part (132) movably supported on the first adjustment part (130), said first adjustment part being adjustable relative to a second adjustment part (131) in the longitudinal direction (X), said first adjustment part (130) being lockable relative to the second adjustment part (131) by means of the locking device, and the locking device (133) being unlockable by manipulating the operating part. - A seating part (10), said seating part being supported on the second adjustment part (131) by means of the first adjustment part (130), and - An adjustment lock (11), said adjustment lock having a locking element (110) mounted on the operating part (132) and a mating locking element (111) fixed to the second adjustment part (131), wherein the locking element (110) can be locked with the mating locking element (111) in at least one position of the first adjustment part (130) relative to the second adjustment part (131).

2. The vehicle seat (1) according to claim 1, characterized in that, The locking of the locking element (110) with the mating locking element (111) can be released by manipulating the operating part (132).

3. The vehicle seat (1) according to claim 1, characterized in that Having a kinematic system (12), said seating part (10) being movable by means of the kinematic system between at least one use position for occupancy and a position displaced forward in the longitudinal direction (X).

4. The vehicle seat (1) according to claim 3, characterized in that, The kinematic system (12) can be locked in the use position.

5. The vehicle seat (1) according to claim 4, characterized in that Having an unlocking device (17), by manipulating the unlocking device, the kinematic system (12) and the longitudinal adjustment system (13) can be unlocked together.

6. The vehicle seat (1) according to claim 3, characterized in that, The kinematic system (12) constitutes a hinge multi-link mechanism.

7. The vehicle seat (1) according to claim 1, characterized in that, The locking element (110) is constructed spring-elastic.

8. The vehicle seat (1) according to claim 7, characterized in that, The locking element (110) is constructed in the form of a leaf spring.

9. The vehicle seat (1) according to claim 1, characterized in that, The mating locking element (111) has a lead-in ramp (112) for the locking element (110).

10. The vehicle seat (1) according to claim 1, characterized in that, The locking element (110) has an eyelet (113) into which the mating locking element (111) can be inserted for locking.

11. The vehicle seat (1) according to claim 1, characterized in that, The locking element (110) is fastened to an arm (134) of the operating part (132), and by means of the arm, the locking device (133) of the longitudinal adjustment system (13) can be unlocked.

12. The vehicle seat (1) according to claim 11, characterized in that Having an unlocking element (139) pivotally supported on the first adjustment part (130), by means of the unlocking element, the arm (134) is operatively connected to the locking device (133) of the longitudinal adjustment system (13).

13. The vehicle seat (1) according to claim 1, characterized in that, The operating part (132) has a manually manipulable gripping section (135).

14. The vehicle seat (1) according to claim 1, characterized in that, The operating part (132) is pivotally supported on the first adjustment part (130).

15. The vehicle seat (1) according to claim 1, characterized in that, The operating part (132) is pre-tensioned by means of a spring (136) into a position in which the locking element (110) can be locked with the mating locking element (111).

16. The vehicle seat (1) according to claim 1, characterized in that, The adjusting parts (130, 131) can move relative to each other on an adjusting path, wherein the locking element (110) and the mating locking element (111) are configured to lock the adjusting parts (130, 131) to each other at the ends of the adjusting path.

17. The vehicle seat (1) according to claim 3, characterized in that, The kinematic system (12) forms a hinge four-bar mechanism or a hinge seven-bar mechanism.

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