Vehicle seat with a rocking member and a locking unit that can be adjusted in a force-actuated manner

Abstract

The proposed solution relates to a vehicle seat having a seat part (S) which is adjustable in an externally actuated manner relative to a vehicle floor (B) on which the vehicle seat (F) is arranged, via at least one swingably supported swing member (SW2) and by means of a drive unit (1, 5) which is in operative connection with the swing member (SW2), and which is capable of being pivoted from a use position into an adjustment position for accessing a vehicle region located behind the vehicle seat (F), wherein at least one locking unit (4) is provided which blocks the seat part (S) against pivoting from the use position into the adjustment position in a locking position and permits pivoting of the seat part (S) from the use position into the adjustment position in a release position. Here, the operative connection between the drive unit (1) and the swing member (SW2) can be decoupled by bringing the locking unit (4) into its release position.

Description

Technical Field

[0001] The proposed solution involves vehicle seats with seating sections. Background Technology

[0002] It is known in practice that various types of vehicle seats exist, which have a seat portion that can be adjusted relative to the vehicle floor by means of at least one swinging member that is oscillatingly supported and a drive unit operatively connected to the swinging member. Thus, for example, an adjustment force can be generated by means of the drive unit to provide an electrically controllable entry assist on the vehicle seat. In this way, the seat portion, and consequently the vehicle seat, can be adjusted by means of external force to, for example, comfortably adjust the tilt of the seat portion, and / or to swing the vehicle seat forward by means of external force to facilitate easier entry and exit from the vehicle area located behind the vehicle seat.

[0003] Especially for emergency exits, it is known that such vehicle seats are additionally equipped with locking units, typically in the form of locks. These locking units, in the locked position, prevent the seat portion from flipping from a usable position to an adjustable position, which facilitates (easier) access to the vehicle area behind the seat. In the released position, the locking unit allows the seat portion to flip from the usable position to the adjustable position. Typically, this can be achieved by one or more locks in the area of ​​the vehicle seat backrest rotation point, allowing for manual flipping from one of several possible usable positions to a (forward-flipped) adjustable position that usually facilitates exit from the vehicle area behind the seat in an emergency. These locks allow targeted unlocking as needed. Thus, two locks (or similar locking units for the vehicle seat) are connected to each other, for example, via a Bowden tow bar or coupler. It is also known in this regard that the locking unit provides locking to the vehicle floor and thus allows the seat portion to flip from the usable position to the adjustable position in the released position.

[0004] In vehicle seats commonly used in practice to date, the drive unit for adjusting the seat portion by external force and the adjustment mechanism for flipping the seat portion from a use position to a forward-flipping adjustment position, such as for emergency exit, are independent of each other and therefore, in principle, decoupled and controllable independently. Whether the locking element of the vehicle seat, which releases the adjustment to the adjustment position, is in the locked or released position generally does not affect the function of the adjustment mechanism driven by the drive unit. Therefore, the adjustment mechanism for adjusting the seat portion by external force and the independent locking unit for preventing the seat portion from unintentionally flipping into the adjustment position often occupy relatively larger and more complex spaces. Summary of the Invention

[0005] Therefore, there is a need to improve vehicle seats in this regard.

[0006] This task is accomplished using a vehicle seat according to the present invention.

[0007] In the proposed car seat, the operative connection between the drive unit and the rocker member can be separated by placing at least one locking unit in its released position. Therefore, the operative connection can be interrupted via the locking unit, allowing an adjustment force generated by the drive unit through external force to be transmitted to at least one rocker member, thereby adjusting the seat portion of the vehicle seat through external force.

[0008] Therefore, in the proposed solution, the force flow between the drive unit and the rocking member can be interrupted via the locking unit, thereby enabling the seat portion to be transferred from a use posture to an adjustment posture independently of the drive unit. Furthermore, the adjustment mechanism, including the rocking member, configured for adjustment from the use posture to the adjustment posture, can be disengaged from the drive unit. In the locked position of the locking unit, there is an action connection between the drive unit and the rocking member, which can be released in the released position. In the released position of the locking unit, the seat portion can be transferred to the adjustment posture without transmitting the adjustment force generated by the drive unit to the rocking member, or even if necessary, without transmitting such an adjustment force to the rocking member at all. In the locked position of the locking unit, the adjustment force generated by the drive unit can be transmitted to the rocking member so that the seat portion can be adjusted by external force, and thus, for example, the tilt and / or height of the seat portion can be adjusted by external force, and / or the seat portion can be adjusted towards the adjustment posture or even adjusted into the adjustment posture, while the locking unit in its released position is configured to disengage the drive unit and the rocking member. Therefore, in the proposed solution, the locking unit provides at least a portion of the releasable mechanical connection between the drive unit and the rocking member in its locked position, so as to enable the adjustment force generated by the drive unit to be transmitted to the adjustment mechanism of the vehicle seat including the rocking member and to enable adjustment independent of the drive unit (e.g., manual) when needed.

[0009] Therefore, in principle, the proposed solution is based on the following basic idea: when the locking unit is in its locked position, the rocking member can be adjusted by external force via a drive unit, possibly an electric motor. The possibility of separating the kinetic connection between the drive unit and the rocking member in the released position of the locking unit, and thus disengaging them, allows the rocking member to continue swinging even in the event of a power failure or damage to the drive unit after a collision, when the locking unit is released and moved to its released position. Thus, a releasable mechanical connection between the drive unit and the rocking member is provided via the locking unit.

[0010] In one implementation variation, the locking unit locks in its locked position to a locking element connected to a rocking member or a rocking member adjustable by a drive unit. The locking element, such as a bolt-type locking element, particularly a latch, can be connected to the rocking member or rocking element indirectly or directly. For example, the locking element is rigidly connected to the rocking member or rocking member, meaning there is no possibility of relative movement. Therefore, when the locking unit is in its designated locked position and the seat portion is adjusted by external force via the drive unit, the portion of the adjusting force generated by the drive unit, guided via the locking element, acts directly on the rocking member or rocking member connected to the locking element, without any relative movement between the locking element and the rocking member or rocking member.

[0011] In the improved design, the swing element, adjustable by a drive unit, is oscillating, and a locking element is locked to the swing element when necessary. Thus, in the locked position of the locking unit, for example, the oscillation of the swing element controlled by the drive unit causes the swinging member to oscillate in such a way that a mechanical connection between the swing element and the swinging member is provided via the locking unit and the locking element. In the released position of the locking unit, the swinging member can be manually adjusted independently of the adjustment of the swing element. Therefore, the swinging member and the swing element are disengaged from each other.

[0012] In principle, the adjusting force applied by the drive unit can be transmitted from the oscillating element to the rocking member by a locking element that locks the locking unit in its locked position. Therefore, the locking element provides the aforementioned mechanical connection between the oscillating element and the rocking member.

[0013] In one implementation variation, the drive unit is mounted on the oscillating element. Therefore, when the seat portion needs to be adjusted in a controlled manner by means of external force, the drive unit can be adjusted together with the oscillating element. In this regard, for example, the housing of the drive unit is fixed to the oscillating element. Such a housing, for example, houses the drive motor and / or transmission mechanism of the drive unit. The drive unit can thus be compactly arranged on the oscillating element.

[0014] In an alternative implementation variant, the drive unit has a drive element that acts on the oscillating element to transmit the adjusting force generated by the drive unit. Therefore, the drive element is connected to the oscillating element if necessary, so that the adjusting movement of the oscillating element can be controlled by adjusting the drive element in a force-operated manner using the drive unit. Thus, in this variant, the drive unit is not located on the oscillating element itself, but acts on the oscillating element only via the drive element. The drive unit, and in particular the drive motor and possibly the transmission of the drive unit, can therefore be spatially spaced apart from the oscillating element, for example, arranged on the floor structure assembly of a vehicle seat, with the seat portion adjustable relative to the floor structure assembly, or arranged on the seat lateral portion of the seat portion, with the seat lateral portion adjustable relative to the vehicle floor.

[0015] In principle, the locking unit can be installed on the rocking member, on the rocking element that can be adjusted by means of the drive unit, or on the side part of the seat that can be adjusted relative to the vehicle floor.

[0016] For example, in one embodiment, the locking unit is disposed on the rocking member or the side portion of the seat. Here, the locking unit can lock with a locking element disposed on the rocking element, or with a locking element disposed on a component directly or indirectly and / or rigidly connected to the rocking element. If the locking unit is disposed on a rocking element that can be adjusted by means of a drive unit, the locking unit locks, for example, with a locking element disposed on the rocking member, or with a locking element disposed on a component directly or indirectly and / or rigidly connected to the rocking member. Therefore, in the two embodiments outlined above, regardless of whether the locking unit is disposed on the rocking member or the rocking element, a mechanical connection between the rocking member and the rocking element is provided when the locking unit is locked.

[0017] The locking unit is disposed on the rocking member, swing element, or seat lateral portion, particularly including: a locking member of the locking unit that is adjustable between a locked position and a released position (the locking position of the locking member corresponds to the locked position of the locking unit, and the released position of the locking member corresponds to the released position of the locking unit) and / or a housing of the locking unit accommodating such a locking member is disposed on the rocking member or swing element, for example, supported thereon. The locking member may, for example, include an adjustable, especially swingable, rotary latch of the locking unit.

[0018] In one embodiment, the rocking member is connected to the seat-side portion of the seat section to adjust and flip the seat section into an adjustable posture by means of external force. The rocking element is rotatably supported on the seat-side portion of the seat section or fastened to a seat member on the seat-side portion. In this embodiment, by placing the locking unit in its locked position, the rocking element, driven by a drive unit to perform the rocking motion, also transmits the adjusting force to the rocking member. The rocking element being supported on the seat-side portion or on the seat member fastened to the seat-side portion is, for example, combined with fastening the drive unit to the seat-side portion and the locking unit to the rocking member. In particular, the rocking element can be rotatably supported on a seat member, such as a cross tube or cross axle, that connects two opposing seat-side portions of the seat section to each other and is respectively fixed to the seat-side portions. The rocking member can be fastened to the seat member, for example, via a second end (anti-rotational), spaced apart from the rocking member's rotatably supported end.

[0019] In one implementation variation, the rocking member is supported in a rocking manner on a support member of the vehicle seat. The support member may, for example, be mounted on a movable track via which the vehicle seat can be adjusted along its longitudinal axis.

[0020] In one implementation variation, the swing element is also supported on the support member in a swingable manner. The swing element can be adjusted by means of a drive unit (and the swing element is connected to a locking element or a locking unit is provided on the swing element, the locking unit locking with the locking element in its locked position).

[0021] In one implementation variation, the drive unit has a translationally adjustable drive element. This translationally adjustable drive element acts on a oscillating element to transmit the adjusting force generated by the drive unit, and the oscillating element is supported on a support member in an oscillating manner. The translationally adjustable drive element can here be part of a spindle drive mechanism that cooperates with the drive unit. Therefore, the spindle drive mechanism is configured to transmit the adjusting force generated by the drive unit to the oscillating member via the oscillating element in the locked position of the locking unit.

[0022] In an alternative implementation variant, the drive unit has a rotatable drive element, such as a drive pinion, which meshes with the teeth of a support member. Thus, the rotatable drive element is, for example, part of a pinion transmission mechanism. This pinion transmission mechanism is thus configured such that, in the locked position of the locking unit, the adjusting force generated by the drive unit is transmitted to the rocking member via a rocking element supported on the support member in a swaying manner by meshing the drive pinion with the teeth of the support member. Here, for example, by rotating the drive element and meshing it with the (fixed) support member, the rocking element oscillates about a sway axis defined on the support member, thereby driving the rocking member. For this purpose, the drive element is supported on the rocking element in a swaying manner, so that the rotational movement of the drive element controlled by the drive unit causes the rocking element to oscillate relative to the support member. Providing a connection between the rocking element and the rocking member by placing the locking unit in its locked position also causes the rocking member to oscillate.

[0023] In principle, the seat portion can be flipped from a use position to an adjustment position together with the vehicle seat backrest. Therefore, the backrest is, for example, secured to the seat portion, so that the displacement of the seat portion via the swinging motion of at least one rocking member also causes the backrest to be adjusted (together). When the seat portion flips (forward) into the adjustment position, the backrest also moves along with it, so as to facilitate easier access to the vehicle area located behind the vehicle seat, for example, especially for emergency exits.

[0024] In principle, for emergency disembarkation, the seat could be manually folded into an adjustable position by placing the locking unit in its released position, without manipulating what is typically a motor-driven unit. However, the proposed solution is not limited to this. Folding the seat forward in the released position of the locking unit could also, in principle, provide comfortable boarding assistance and / or be part of a convenient entry mechanism. Attached Figure Description

[0025] The accompanying drawings clearly illustrate possible variations of the proposed solution.

[0026] in: Figure 1 The proposed vehicle seat variant is shown in sections, which has an adjustment device with a pinion gear transmission for adjusting the seat portion by means of external force via a rocker arm supported in a swingable manner and an electric motor-type drive unit connected to the rocker arm in a releasable manner. Figure 2 The vehicle seats are shown in sections, which have... Figure 1 The adjustment device is in an adjustment posture occupied by external force, in which the seat portion of the vehicle seat is flipped forward. Figures 3A to 3B Shown in different views Figure 1 and 2 The vehicle seats, where the adjustment mechanism is in Figure 2 In adjusting posture, however, Figure 3A and 3B In this case, the adjustment posture is manually occupied after the locking unit, which is operated by a lock, without the need to operate the drive unit; Figure 4A A further embodiment of the proposed vehicle seat is shown in truncated form, which includes an adjustment device with a main shaft drive to allow the seat portion to be oscillated by external force. Figure 4B Show Figure 4A The vehicle seat, in which the seat is manually flipped forward after the locking unit is operated and thus after the drive unit and the rocker arm of the vehicle seat, which is supported in a swingable manner, are mechanically disengaged from each other; Figures 5A to 5C A further embodiment of the proposed vehicle seat is shown in truncated form, the vehicle seat having an adjustment device with a pinion gear transmission, wherein the drive unit drives a drive pinion rotatably supported on the lateral portion of the seat. Figure 6 The vehicle seats are shown schematically and in perspective view, in which the use of Figures 1 to 3B Or the adjustment device from 4A to 4B. Detailed Implementation

[0027] Figure 6 The vehicle seat F is schematically shown in perspective. The vehicle seat has a seat portion S and a backrest R supported on the seat portion in a swingable manner. The vehicle seat F is arranged on the vehicle floor B and can move longitudinally on the vehicle floor B via a track device SA. Here, the track device SA includes track pairs SP1 and SP2 that extend along the longitudinal axis and are parallel to each other.

[0028] Two rocker arms, SW1 and SW2, are provided on each track pair SP1, SP2 to support the seat portion S on the track equipment SA. The rocker arms SW1 and SW2 support the lower frame of the seat cushion of the vehicle seat F of the seat portion S in an adjustable manner relative to the vehicle floor. Therefore, the pair of rear rocker arms SW2 are implemented in a swinging manner, so that the seat portion S and the backrest R fastened thereto can swing forward by external force and can also be manually tilted forward.

[0029] The rear rocker arm SW2 is swung towards the front rocker arm B1 by external force, for example, to adjust the seat tilt of the vehicle seat F. This facilitates easy entry and exit within the range of boarding assistance (especially when using vehicle seat F for the first or second row of seats) for boarding into or exiting the vehicle area located behind the vehicle seat F. In a seating system with such a boarding assistance vehicle seat F, it is usually also necessary to be able to manually flip the vehicle seat F forward for emergency exit. Typically, for this purpose, separate locking units in the form of locks are provided on both longitudinal sides of the vehicle seat F, each in the rear area.

[0030] Therefore, in a variant implementation of the proposed solution, the locking unit, which in the locked position prevents the seat portion S from flipping from a use posture to a forward-flipping adjustment posture, not only allows the seat portion S to flip to the forward-flipping adjustment posture in the released position, but also subsequently disengages the operative connection between the drive unit (e.g., electric motor type) and the rear rocker arm SW2. Thus, in the locked position, the locking unit mechanically connects the drive unit and the rocker arm SW2, thereby enabling force transmission to swing the rocker arm SW2 for externally manipulating the adjustment of the seat portion S. In the released position, the locking unit mechanically disengages, allowing the rocker arm SW2 to be manually swung using the adjustment mechanism of the vehicle seat F, including the rocker arm SW2, thereby allowing the seat portion S to flip. Therefore, when the locking unit is released, even in the event of a power failure or damage to the drive unit, the seat portion S can flip forward along with the backrest R independently of the drive unit.

[0031] Figures 1 to 3B 4A to 4B and 5A to 5B exemplarily show different implementation variations of the corresponding adjustment device for vehicle seat F.

[0032] exist Figure 1 , 2In embodiments 3A to 3B, the adjustment device for adjusting the seat portion S includes an electric motor-type drive unit 1, which is fixed to a support plate 100 that is a swing element configured as a swing arm 10. The swing arm 10 is supported on a support member 3 in a swingable manner. This support member 3 is fixed to the upper rail O of the track pair SP1, for example, by welding to a base 30. A rear rocker arm SW2, also swingable, is supported on the support member 3, which is fixed relative to the track, opposite the swing arm 10.

[0033] The support member 3 has a toothed section 31 protruding from the base 30, into which a drive pinion 2, rotatably supported, meshes. The drive pinion 2 is rotatably supported on the swing rod 10 away from the swing axis A. The rocker arm SW2 and the swing rod 10 are respectively supported on the support member 3 in a swinging manner around the swing axis. The drive pinion 2 can be driven to rotate by the drive unit 1. During rotation, the drive member 2 meshes with the toothed section 31 of the support member 3, and because the drive member is supported on the swing rod 10, it is adjusted along the toothed section 31 around the swing axis A. The rotation of the drive pinion 2 thus causes the swing rod 10 to swing about the swing axis A relative to the support member 3, which is fixed to a relative track.

[0034] In addition, the swing arm 10 is provided not only with the drive unit 1, but also with a locking element in the form of a bolt 11. The bolt 11 is rigidly connected to the support plate 100 of the swing arm 10, such that the bolt 11 protrudes from a first side of the swing arm 10, which faces away from the second side of the swing arm 10 on which the drive unit 1 is fixed. The bolt 11 protrudes laterally beyond the support member 3, allowing a locking unit in the form of a lock 4 to lock with it. This locking unit is fixed to the rocker arm SW2 opposite to the swing arm 10. The lock 4 is fixed to the inner side of the rocker arm SW2, which faces the swing arm 10. Therefore, the support member 3 is essentially located between the swing arm 10 and the rocker arm SW2 with the lock 4. The bolt 11 is located behind the support member 3 and its toothed section 31 in the longitudinal direction defined by the track pair SP1 (see also...). Figure 3A and 3B ).

[0035] The lock 4 has a housing 40, which in particular houses a locking member, a pivotable rotary latch 41, which is supported in an adjustable manner. The housing 40 is entirely disposed on and fixed to the inner side of the rocker arm SW2. In the locked position of the lock 4, the pivotal latch 41 is locked to the protruding bolt 11 of the pivot lever 10. Thus, the pivot lever 10 and the electric motor-type drive unit 1 mounted thereon are mechanically connected to the rocker arm SW2, which carries the lock 4, via the lock 4. Specifically, the pivot lever 10 and the rocker arm SW2 are therefore rigidly connected to each other mechanically via the lock 4. In this way, the pivoting motion of the pivot lever 10 causes the rocker arm SW2 to pivot synchronously about a common pivot axis A. The pivoting motion of the pivot lever 10 is controlled by the electric motor-type drive unit 1 and a pinion transmission device defined by a drive pinion 2 and a toothed section 31 of the support member 3 that meshes with the drive pinion.

[0036] The rocker arm SW2 is hinged to the seat-side portion ST of the seat section S on the side opposite to the swing axis A. Here, the end of the rocker arm SW2 at the seat-side portion is hinged to the region of the horizontal tube Q of the seat section S that connects the two opposing seat-side portions ST to each other. The swinging motion of the rocker arm SW2 about the swing axis A on the support member 3 thus introduces an adjusting force into the seat section S in the region of the horizontal tube Q, causing the seat-side portion ST, and consequently the seat section S, to adjust relative to the vehicle floor B. The rear region of the seat section S is thus adjusted by the swinging motion of the rocker arm SW2. Figure 1 The resting position shown (counterclockwise) is raised to Figure 2 The seat portion S (around the swing axis in the area of ​​the rocker arm SW1 constructed at the front) is positioned to swing forward, thus causing the seat portion S to tilt forward together with the backrest R.

[0037] Lock 4 allows disengagement of the drive unit 1 from the rear rocker arm SW2. If lock 4 is unlocked and thus moved to the released position where the rotary latch 41 releases the bolt 11, the rocker arm SW2 can swing about the swing axis A independently of the swing lever 10 and therefore independently of the drive unit 1. In other words, when lock 4 is unlocked, the mechanical connection between the swing lever 10 and the rocker arm SW2 can be separated, and thus the adjustment mechanism including the rocker arm SW2 can be disengaged from the drive unit 1 and the pinion gears 2 and 31. By manipulating lock 4 and thus releasing the lock from bolt 11, the seat portion S can be manually tilted forward without the drive unit 1 providing the adjustment force. Therefore, even if the drive unit 1 is no longer controllable or damaged after a collision, for example, for emergency disembarkation, the seat portion S can be moved to a tilted-forward adjustment position.

[0038] exist Figure 4A and 4B In the implementation variant, similar to Figure 1 , 2 In the implementation variations of 3A to 3B, lock 4 is mounted on (rear) rocker arm SW2, which is supported on support member 3 fixed relative to the track in a manner that allows it to swing about swing axis A. Similarly, a swing rod 10 is provided, which is supported on support member 3 about swing axis A, and the swing rod is mechanically connected to lock 4 via bolt 11 provided on swing rod 10 and rocker arm SW2.

[0039] and Figures 1 to 3B The implementation variant differs in that an electric motor-type drive unit 5 with a main shaft drive is provided instead of the pinion gear transmission devices 2 and 31. The drive motor 50 of the drive unit 5, fixed in the area of ​​the track equipment SA, drives the drive element of the drive shaft 51, which can be adjusted in a translational manner. The drive shaft 51 is connected to the swing arm 10 below the swing axis A of the support member 3 on the connecting arm 10a. More precisely, the translational adjustment of the drive shaft 51 along the adjustment direction V, which extends parallel to the longitudinal axis defined by the track for SP1, causes the swing arm 10 to swing about the swing axis A. Therefore, depending on whether the drive shaft 51 moves in or out, the swing arm 10 swings about the swing axis A in one swing direction or another on the support member 3. Here, with the lock 4 locked, the swing arm 3 drives the rocker arm SW2, and thus again allows adjustment of the rocker arm SW2, and consequently the seat part S, by external force in two different adjustment directions (towards the adjustment posture and back to the use posture).

[0040] According to Figure 4B When the lock 4 is unlocked and in the released position, the seat part S and the backrest R can be flipped forward by the swing of the rocker arm SW2 without the need to adjust the rocker arm 10 or operate the drive unit 5.

[0041] In order to relock lock 4 with bolt 11 and thus mechanically connect rocker arm SW2 with swing arm 10 and drive unit 5, it is only necessary to flip seat part S backward again (manually), so that the rotary latch 41 of lock 4 can automatically lock with bolt 11.

[0042] Unlike Figures 1 to 4B The diagram shows that even when the transmission device is fixed to the opposite side, the adjustment mechanism including the rocker arm SW 2 is separated from the transmission device connected to the drive unit 1 or 5 via the lock 4.

[0043] Figure 5A , 5BThe corresponding implementation variant for a vehicle seat F equipped with an adjustment device having a pinion drive is shown in different views and sections compared to 5C. Here, a drive unit 1 with a pinion drive is provided on the side portion ST. The drive unit 1, located on the outer side of the side portion ST, drives a drive pinion 2 that is rotatably supported on the opposite inner side of the side portion ST. This drive pinion 2 engages with the toothed section 13 of a swing arm 10, which is currently rotatably supported on a cross tube Q fixed to the side portion ST.

[0044] exist Figures 5A to 5C In the illustrated embodiment, lock 4 is mounted on rocker arm SW2 opposite to rocker arm SW2, so that lock 4 is completely contained within the gap between rocker arm SW2 and rocker arm SW2. Currently, lock 4 is locked to bolt 11 on rocker arm SW2. In the illustrated embodiment, bolt 11 is constructed on rocker arm SW2. Bolt 11 is... Figures 5A to 5C The rocker arm 10 is arranged adjacent to the toothed section 11. The locking bolt 11 protrudes vertically from the rocker arm 10 toward the rocker arm SW2, and when the lock 4 is locked, it allows mechanical connection between the rocker arm 10 and the rocker arm SW2, which is supported in a swingable manner on the support member 3 fixed to the relative track.

[0045] When lock 4 is locked, the drive pinion 2 is rotated by drive unit 1, and the drive pinion 2 engages with the toothed section 13 of the swing arm 10, thereby driving the swing arm 10 to swing about the axis of rotation defined by the cross tube Q relative to the seat lateral portion ST. Due to the mechanical connection via lock 4, the swinging motion of the swing arm 10 driven by drive unit 1 causes the rocker arm SW2 to swing about the swing axis A. Therefore, the rocker arm SW2 has one degree of freedom because it is rotatably supported on the support member 3 fixed relative to the track about the swing axis A. Therefore, the adjusting force introduced into the rocker arm SW2 at a distance from the swing axis A, with a force component oriented perpendicular to the swing axis A, causes the rocker arm SW2 to swing about the swing axis A. The swinging of the swing arm 10 thus causes the rocker arm SW2 to swing (when lock 4 is locked as specified) and thereby displaces the cross tube Q connected to the swing arm SW2. Since the cross tube Q is fastened to the two opposite seat lateral portions ST of the seat portion S, the seat portion S can be adjusted.

[0046] according to Figure 5C As shown, if lock 4 is not locked with bolt 11 of rocker arm 10, the seat section S can be manually flipped forward into an adjustable position by rocking rocker arm SW2. Rocker arm 10 and drive pinion 2 remain unchanged in their relative positions. Drive unit 1 and rocker arm SW2 are mechanically disengaged from each other.

[0047] Alternative or supplementary sites can, of course, be easily found relative to... Figure 1 and 2 The diagram shows the positions of the interchangeable lock 4 and bolt 11. Therefore, for example, the bolt 11 is set on the rocker arm SW2, and the lock 4 is set on the swing arm 10.

[0048] List of reference numerals

[0049] 1. Drive Unit

[0050] 10. Swing rod (swing element)

[0051] 100 support plate

[0052] 10a Connecting Arm

[0053] 11. Bolt (locking element)

[0054] 13 Tooth Section

[0055] 2. Drive pinion (drive element)

[0056] 3 Support components

[0057] 30 bases

[0058] 31 Tooth section

[0059] 4. Lock (locking unit)

[0060] 40 Housing

[0061] 41 Rotary Bumper Lock

[0062] 5 drive units

[0063] 50 drive motors

[0064] 51. Drive spindle (drive element)

[0065] A. Swing axis

[0066] B vehicle floor

[0067] F vehicle seats

[0068] O on track

[0069] Q horizontal tube

[0070] R Backrest

[0071] S Seating Section

[0072] SA Track Equipment

[0073] SP1 and SP2 orbital pairs

[0074] ST Seat Side Section

[0075] SW1 and SW2 rocker arms (swing components)

[0076] V Adjustment Direction

Claims

1. A vehicle seat having a seating portion (S). - The seat portion can be adjusted by external force relative to the vehicle floor (B) on which the vehicle seat (F) is arranged, via at least one swinging member (SW2) supported in a swinging manner and by means of a drive unit (1, 5) operatively connected to said swinging member (SW2), and - The seat portion can be flipped from a use position to an adjustable position for accessing the vehicle area located behind the vehicle seat (F). in, At least one locking unit (4) is provided, which in the locked position locks the seat portion (S) to prevent it from flipping from the use position to the adjustment position and in the released position allows the seat portion (S) to flip from the use position to the adjustment position. Its features are, By placing the locking unit (4) in its released position, the kinetic connection between the drive unit (1) and the rocking member (SW2) can be separated. The locking unit (4) is locked in its locked position to the locking element (11), which is connected to the rocking member (SW2) or to the rocking element (10) that can be adjusted by means of the drive unit (1, 5).

2. The vehicle seat according to claim 1, characterized in that, The oscillating element (10) is oscillating by means of the drive unit (1, 5).

3. The vehicle seat according to claim 1, characterized in that, The adjusting force applied by the drive unit (1, 5) can be transmitted from the swing element (10) to the rocking member (SW2) via the locking element (11).

4. The vehicle seat according to claim 1, characterized in that, The drive unit (1) is disposed on the swing element (10), or the drive unit (1, 5) has a drive element (2, 51) that acts on the swing element (10) to transmit the adjusting force generated by the drive unit (1, 5).

5. The vehicle seat according to claim 1, characterized in that, The locking unit (4) is disposed on the rocking member (SW2), or on the rocking element (10) that can be adjusted by means of the drive unit (1, 5), or on the seat side portion (ST) of the seat portion (S).

6. The vehicle seat according to claim 1, characterized in that, The rocking member (SW2) is connected to the seat side portion (ST) of the seat portion (S) so as to adjust the seat portion (S) by means of external force and flip the seat portion into the adjustment posture, and the rocking element (10) is rotatably supported on the seat side portion (ST) of the seat portion (S) or rotatably supported on the seat member (Q) fastened to the seat side portion.

7. The vehicle seat according to claim 1, characterized in that, The swing member (SW2) is supported on the support member (3) of the vehicle seat (F) in a swinging manner.

8. The vehicle seat according to claim 1, characterized in that, The swing member (SW2) is supported on the support member (3) of the vehicle seat (F) in a swingable manner, and the swing element (10) is also supported on the support member (3) in a swingable manner.

9. The vehicle seat according to claim 8, characterized in that, The drive unit (5) has a drive element (51) that can be adjusted in a translational manner, which acts on the oscillating element (10) to transmit the adjustment force generated by the drive unit (5).

10. The vehicle seat according to claim 7, characterized in that, The drive unit (1) has a rotatable drive element (2) that engages with the teeth of the support member (3).

11. The vehicle seat according to claim 1, characterized in that, The vehicle seat (F) can be adjusted along the longitudinal axis via a track device (SA) having at least one track (O) that is supported in a movable manner.

12. The vehicle seat according to claim 7, characterized in that, The vehicle seat (F) is adjustable along the longitudinal axis via a track device (SA) having at least one movable track (O) and the support member (3) is disposed on the at least one movable track (O).

13. The vehicle seat according to claim 1, characterized in that, The seat portion (S) can be flipped together with the backrest (R) of the vehicle seat (F) from a use posture to an adjustment posture.

Images