Oscillating frame for a vehicle seat, in particular a suspensing seat and / or commercial vehicle seat, and such a vehicle seat

Abstract

The invention relates to a swing frame (120) for a vehicle seat (100), in particular a swing seat and / or a commercial vehicle seat, comprising at least one subframe (210) and a swing arm (202a, 202b) which is movable, in particular oscillatable, relative to the subframe (210) and which is articulated to the subframe (210) at least at a lower swing end (202.1) via a crossbar (230 to 260). At least one position detection device (400) for detecting an assumed relative position of the crossbar (230 to 260) is arranged in the subframe (210). The crossbar (230 to 260) can be moved along with the movement of the swing arm (202a, 202b) about a rotation axis (252). The invention also relates to a vehicle seat (100).

Description

[0001] The invention relates to a swing frame for a vehicle seat, in particular a swing seat and / or a commercial vehicle seat, comprising at least one subframe and a swing arm which is movable relative to the subframe and which is articulated to the frame at least at a lower swing arm end via a crossbar, and to a vehicle seat. State of the art

[0002] From EP 2 321 149 B1 a vehicle seat, in particular a commercial vehicle seat, is known, having a scissor frame which can oscillate in a main oscillation direction and which has an upper frame, two first rockers and two second rockers which cross in pairs on a scissor axis running in the transverse direction of the seat, wherein the two first rockers are connected to one another at one end by means of a cross tube running in the transverse direction of the seat, which cross tube is rotatably mounted on the upper frame by means of at least one bearing device, wherein horizontal vibrations of the upper frame in the longitudinal direction of the seat are undamped by at least one oscillation device in the case of small deflections and damped by the bearing device in the case of large deflections. Task

[0003] The invention is based on the object of improving a swing frame of the type mentioned at the outset, in particular of enabling a measurement of a height, in particular a seat height, in a swing seat in a simple manner, and of providing a corresponding vehicle seat. Solution

[0004] This object is achieved according to the invention by a swing frame for a vehicle seat, in particular a swing seat and / or a commercial vehicle seat, comprising at least one subframe and a swing arm which is movable, in particular oscillatable, relative to the subframe and which is articulated to the frame at least at a lower swing end via a crossbar, wherein at least one position detection device for detecting an assumed relative position of the crossbar is arranged in the subframe, wherein the crossbar is movable when the swing arm moves about an axis of rotation.

[0005] Due to the fact that at least one position detection device for detecting an assumed relative position of the crossbar is arranged in the subframe, wherein the crossbar can be moved along with the movement of the swing arm about a rotation axis, a current height, in particular seat height, of the vehicle seat, in particular of a swing seat, can be monitored in a simple manner.

[0006] A suspension seat or a swing arm capable of oscillating is a seat or swing arm capable of deflecting, for example, due to uneven road surfaces. The suspension seat or swing arm capable of oscillating can counteract unpleasant shocks on poor road surfaces, for example, by dampening them. This can increase seating comfort, for example, on longer journeys.

[0007] The vehicle seat can, for example, be a suspension seat. The swing frame can be a suspension.

[0008] The arrangement of the position detection device within the subframe allows for a pre-assembled or pre-assembled and optionally testable assembly. Furthermore, this arrangement enables space-saving use of existing installation space.

[0009] Advantageous embodiments, which can be used individually or in combination with one another, are the subject of the subclaims.

[0010] For example, a level control system can be provided, whereby a deflection of the swing arm or the swing frame and / or a current height position of the vehicle seat can be determined by detecting the relative position of the crossbar resulting from a movement of the swing arm. If, for example, an actual height value deviates from a target value, usually due to a deflection of the swing arm or the swing frame, the level control system can be activated, for example, to counteract the deflection so that the actual value returns to the target value. The level control system can, for example, comprise at least one control device and a controllable suspension device.

[0011] The position detection device can be configured to determine a deflection of the swing arm and / or a height, in particular seat height, of the vehicle seat based on the detected relative position of the crossbar.

[0012] By determining, for example, the current deflection and / or the current height position, the height adjustment of the vehicle seat can also be improved. The setpoint for the height adjustment can be changed depending on the new height to be adjusted, so that the level control treats the current actual value as a deviation from the setpoint and adjusts the suspension frame to the desired new height.

[0013] The lower end of the swing arm can be connected to the crossbar in a rotationally fixed manner. This allows the crossbar to follow the movement, such as the deflection, of the swing arm.

[0014] In a further development, the crossbar can be controlled to move the swing arm. For different height positions of the vehicle seat, the crossbar can be adjusted by an angle, for example. For example, the crossbar can be rotated by 26° each time to adjust a height position.

[0015] The position detection device can be arranged in a linkage area of the crossbar in and / or on the lower frame. In particular, the position detection device can be arranged entirely within a cavity of the lower frame. Furthermore, no modifications to an existing metal structure or to the layer structures of the lower frame or upper frame are required.

[0016] At least one bearing element can be arranged in a cavity of the subframe, wherein the bearing element can comprise a bearing receptacle in which the crossbar can be held in a rotationally guided manner, wherein the position detection device can be arranged at a bearing end opposite the bearing receptacle.

[0017] The position detection device can comprise at least one angle sensor, which can be configured to detect an angular position of the crossbar as a relative position. A permanent magnet that interacts with the angle sensor can be arranged on and / or in the crossbar. The position detection device can comprise, for example, a magnetic angle sensor. The permanent magnet can be mounted centrally in the crossbar.

[0018] The angle sensor can be arranged on a rear side or front side of the bearing element and comprise at least one circuit board and a sensor element arranged thereon for measuring a rotation of the permanent magnet.

[0019] A sensor signal can be recorded non-linearly relative to the height of the oscillating frame. The sensor signal can be recorded as an absolute signal. The detection or measurement of the rotation, particularly the angular position, of the crossbar can be performed contactlessly. This can reduce wear.

[0020] In a further development, the position detection device can optionally be arranged in an upper frame of the oscillating frame. In a further development, the angle sensor can be arranged in and / or on the crossbar, and the permanent magnet can be arranged in and / or on the lower frame.

[0021] The seat height in a suspension seat can be measured by determining the adjustment angle. By determining the angle of the crossbar and thus the swing arm, the current seat height can be determined.

[0022] The crossbar can comprise a cavity in which a magnet carrier can be mounted. The magnet carrier can be secured in the cavity, for example, at least in a form-fitting, force-fitting, and / or material-fitting manner. The magnet carrier can have a magnet receptacle for accommodating the permanent magnet.

[0023] The swing arm can be designed to be capable of swinging, wherein an upper swing end of the swing arm can be held movably guided in the longitudinal direction of the seat via a sliding element on an upper frame, wherein a height of the upper frame relative to the lower frame can be changed by a movement of the swing arm.

[0024] At least one pair of swingable rockers can be provided, wherein the rockers can intersect at a scissor axis and can be pivoted relative to each other about the scissor axis. The pair of rockers can be designed as adjustable scissors, for example, height-adjustable scissors.

[0025] The oscillating frame can be designed as a scissor-type frame. The oscillating frame can, for example, have two pairs of rockers arranged at a distance from one another in the transverse direction. Two opposing rockers of the pair can be connected to one another via the crossbar. By determining the angle of the scissor-type frame, in particular of the height-adjusting scissors, the current height of the seat can be determined. By detecting the deflection during the oscillation of the scissor-type frame, which can be detected by the position detection device, the current height position, for example an actual height value, can be determined with the greatest possible accuracy, which ultimately can improve both level control and height adjustment.

[0026] The invention further relates to a vehicle seat, in particular a suspension seat and / or commercial vehicle seat, with at least one seat part and a swing frame connected to the seat part according to the previous description, wherein the swing frame comprises at least one subframe and a swing arm that is movable, in particular oscillatable, relative to the subframe and is articulated to the frame at least at one lower swing arm end via a crossbar. At least one position detection device for detecting an assumed relative position of the crossbar is arranged in the subframe of the swing frame, wherein the crossbar is movable along with the movement of the swing arm about a rotation axis. By means of the position detection device, a current height of the swing frame, in particular a seat height of the vehicle seat, in particular of a suspension seat, can be determined by means of an angle measurement in the swing kinematics.The vehicle seat can be a commercial vehicle seat, for example a so-called CV seat.

[0027] The swing frame can be a swing-capable and optionally height-adjustable scissor frame. The seat height can be determined by measuring the angle of a scissor kinematics. The swing frame, in particular a scissor frame, can comprise a lower frame, an upper frame arranged above it, and a pair of crossed rockers on each side. A scissor axis can connect the two intersection points of the rockers and at the same time define the axis about which the rockers can pivot relative to one another. The rockers can each be hinged at their rear end to the lower frame or upper frame and each have sliding elements, for example rotatable rollers, at their front end, by means of which they can be movably guided in or on the upper frame or lower frame in the longitudinal direction of the seat.This movement of the swing arms can change the height of the upper frame above the lower frame, also known as the height of the scissor frame. Figures and embodiments of the invention

[0028] The invention is explained in more detail below with reference to advantageous embodiments illustrated in the figures. However, the invention is not limited to these embodiments. They show: Fig. 1: a schematic representation of a vehicle seat with a longitudinal adjustment device according to the prior art, Fig. 2: schematically shows a perspective front view of an oscillating frame according to the invention, in particular an oscillating scissor frame, according to a first embodiment, Fig. 3: schematically a perspective rear view of the oscillating frame according to the invention, Fig. 4: schematically shows an enlarged section in the area of a subframe of the oscillating frame according to the invention, Fig. 5: schematically shows a further enlarged section in the area of the subframe of the oscillating frame according to the invention, Fig. 6: schematically shows in perspective a cover element for covering a position detection device of the oscillating frame according to the invention, Fig. 7: schematically shows in a perspective view a rod end of a crossbar according to a first embodiment, Fig. 8: schematically shows in perspective view a magnet carrier which can be arranged or is arranged in a crossbar according to a first embodiment, and Fig. 9: schematically shows in perspective view an angle sensor of the position detection device according to a first embodiment.

[0029] Corresponding parts are provided with the same reference numerals in all figures.

[0030] One in the Fig. A vehicle seat 100 schematically illustrated in FIG. 1 of the prior art is described below using three spatial directions running perpendicular to one another. In a vehicle seat 100 installed in the vehicle, a longitudinal direction x runs largely horizontally and preferably parallel to a vehicle longitudinal direction that corresponds to the usual direction of travel of the vehicle. A transverse direction y running perpendicular to the longitudinal direction x is also oriented horizontally in the vehicle and runs parallel to a vehicle transverse direction. A vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y. In a vehicle seat 100 installed in the vehicle, the vertical direction z preferably runs parallel to a vehicle vertical axis.

[0031] The position and direction information used, such as front, rear, top, and bottom, refer to a viewing direction of an occupant sitting in the vehicle seat 100 in a normal seating position, wherein the vehicle seat 100 is installed in the vehicle, in a position of use suitable for passenger transport with the backrest 104 upright and oriented in the direction of travel as usual. However, the vehicle seat 100 can also be installed or moved in a different orientation, for example, transversely to the direction of travel. Unless otherwise described, the vehicle seat 100 is constructed mirror-symmetrically to a plane running perpendicular to the transverse direction y.

[0032] The backrest 104 can be pivotably mounted on a seat part 102 of the vehicle seat 100. For this purpose, the vehicle seat 100 can optionally comprise a fitting 106, in particular an adjustment fitting, rotary fitting, locking fitting, or wobble fitting.

[0033] The position and direction specifications used, such as radial, axial, and circumferential, refer to a rotational axis 108 of the fitting 106. Radial means perpendicular to the rotational axis 108. Axial means in the direction of or parallel to the rotational axis 108.

[0034] The vehicle seat 100 can optionally include a longitudinal adjustment device 110. The longitudinal adjustment device 110 includes, for example, a rail arrangement 112 with a first rail element 114 and a second rail element 116. The first rail element 114 is adjustable in the longitudinal direction x relative to the second rail element 116. The first rail element 114 is attached to the seat part 102. The second rail element 116 is attached to a structural element of a vehicle, for example, a vehicle floor.

[0035] For clarity, the first rail element 114 is referred to as the upper rail 114 in the following description. This upper rail 114 (also called a running rail or carriage) is assigned to the vehicle seat 100 and is configured to support this vehicle seat 100. The second rail element 116 is referred to below as the lower rail 116. The lower rail 116 is fixed and connected, for example, to the floor of a vehicle.

[0036] Furthermore, an oscillating frame 120, for example an oscillating kinematics and / or height adjustment kinematics, can be arranged between the vehicle seat 100, in particular between the seat part 102, and the longitudinal adjustment device 110 and / or a vehicle floor.

[0037] The swing frame 120 can have a joint arrangement (I, II, III, IV) on each side of the seat part 102, for example a four-bar arrangement. The joint arrangements (I, II, III, IV) can be constructed essentially identically.

[0038] The seat part 102 can be displaced together with the swing frame 120 by means of two pairs of rails, whereby the vehicle seat 100 can be translationally adjusted in the longitudinal direction x. The two pairs of rails are offset from one another in the transverse direction y and arranged parallel to one another.

[0039] Fig. 2 schematically shows a perspective view of an oscillating frame 120 according to the invention, in particular an oscillating and optionally height-adjustable oscillating frame 120.

[0040] The swing frame 120 is in particular a scissor frame 200.

[0041] The swing frame 120, in particular the scissor frame 200, comprises at least one Fig. 3, a lower frame 210 and an upper frame 220 are shown in more detail. The lower frame 210 and the upper frame 220 are arranged at a distance from one another in the vertical direction z. The oscillating frame 120 comprises a pair of crossed rockers 202a, 202b on each side. The pairs of rockers 202a, 202b movably connect the two frames to one another. The pairs movably support the upper frame 220 on the lower frame 210.

[0042] A scissor axis 204 connects the two intersection points and simultaneously defines the axis about which the rockers 202a, 202b can pivot relative to one another. The rockers 202a, 202b are each hinged at their rear end 202.1 to the lower frame 210 or the upper frame 220, respectively, and each have sliding elements (not shown in detail) at their front end 202.2, for example, rotatable rollers, by means of which they are movably guided in or on the upper frame 220 or the lower frame 210 in the longitudinal direction x. This movement of the rockers 202a, 202b changes the height of the upper frame 220 above the lower frame 210, hereinafter also referred to as the height of the scissor frame 200.

[0043] For example, by means of a level control device not shown in detail, for example comprising at least a gas spring and a damper, the scissor frame 200 can be an oscillating system which increases seating comfort.

[0044] Fig. 3 schematically shows a perspective rear view of the oscillating frame 120 according to the invention, in particular the scissor frame 200.

[0045] The two pairs of crossed wings 202a, 202b each comprise a first wings 202a and a second wings 202b, wherein the inside of the first wings 202a and the outside of the second wings 202b face each other.

[0046] The two first rockers 202a are rigidly connected to one another at their upper, in this case rear, rocker end 202.1 by means of a crossbar 230 and are movably, in particular rotatably, hinged to the upper frame 220. The first rockers 202a are connected to one another at their lower, in this case front, rocker ends 202.2 by means of a further crossbar 240. The crossbar 240 can be movably guided on both sides in the longitudinal direction x by means of a bearing device (not shown in detail) on the lower frame 210.

[0047] The second rockers 202b are connected to one another at their lower, in this case rear, rocker ends 202.1 by means of a crossbar 250 and are movably, in particular rotatably, hinged to the lower frame 210. The crossbar 250 can be mounted directly on the lower frame 210 and / or by means of a bearing element 300. At their upper, in this case front, rocker ends 202.2, the second rockers 202b are also connected by means of a crossbar 260 and are movably guided in the longitudinal direction x, for example on both sides, by means of a bearing device (not shown in detail) in the upper frame 220.

[0048] The crossbars 230 to 260 each extend parallel to the scissor axis 204 in the transverse direction y. A movement, in particular a pivoting movement, of the first rockers 202a relative to the second rockers 202b about the scissor axis 204 changes the height of the upper frame 220 above the lower frame 210.

[0049] A control device (not shown in detail) can be provided and can be used both for level control, i.e. for maintaining a set height of the scissor frame 200 during driving operation, and optionally for height adjustment of the scissor frame 200.

[0050] At least one position detection device 400 is provided to determine a current height position of the oscillating frame 120, in particular of the scissor-type frame 200. The at least one position detection device 400 can be arranged, in particular, in one of the articulation areas 270 between one of the crossbars 230 to 260 and the lower frame 210 or the upper frame 220. As a result, the position detection device 400 can be arranged in the lower frame 210 and / or the upper frame 220 in a space-saving manner.

[0051] Because the current height position of the scissor-type frame 200 can be determined, a current height position of the vehicle seat 100 can be derived. This enables an improvement in level control and / or height adjustment when the scissor-type frame 200 experiences deflections, for example, due to uneven road surfaces. The deflection can therefore be monitored using the position detection device 400.

[0052] The scissor-type frame 200 can be displaceable in the longitudinal direction x by means of the longitudinal adjustment device 110. The vehicle seat 100 can further comprise a seat frame (not shown in detail), which can be attached to the upper frame 220. In a further development, the seat frame, for example a seat surface, can be formed integrally with the upper frame 220. The scissor-type frame 200 can be hinged directly to the seat frame of the vehicle seat 100 and connect it to the lower frame 210.

[0053] Fig. 4 schematically shows an enlarged section in the area of a subframe 210 of the oscillating frame 120 according to the invention, in particular of the scissor frame 200.

[0054] The lower frame 210, and optionally also the upper frame 220, can have a substantially U-shaped or C-shaped profile. The lower frame 210 can have a profile, for example in the form of a rail profile, which is at least partially open in the transverse direction y towards the crossbar 250 and accommodates the associated bearing element 300 for rotatably supporting the crossbar 250. The lower frame 210 can also have a closed profile with at least one through-opening for the passage of the crossbar 250. The bearing element 300 can, for example, be arranged in the cavity 212 of the lower frame 210. The cavity 212, in particular a profile opening, can be covered at the profile end of the lower frame 210 by a cover element 214.

[0055] For example, the position detection device 400 can be arranged at the profile end of the subframe 210 and in the articulation area 270 of the crossbar 250 and / or in the area of the bearing element 300.

[0056] The position detection device 400 arranged in the lower frame 210, or optionally in the upper frame 220, is provided for detecting a relative position assumed by the crossbar 250. The crossbar 250 can be moved about a rotation axis 252 when the associated rockers 202b move, for example, during a pivoting movement due to a deflection or height adjustment. The lower or rear rocker ends 202.1 of the rockers 202b are connected to the crossbar 250 in a rotationally fixed manner. During a deflection and also during a height adjustment of the scissor frame 200, the crossbar 250 can be moved, in particular pivoted or rotated. The respective rear rocker end 202.1 can be connected to the crossbar 250 at least in a materially bonded, positively bonded, and / or force-locked manner.

[0057] The rotation axis 252 runs parallel to the scissors axis 204 and to the transverse direction y.

[0058] Fig. 5 schematically shows a further enlarged section in the area of the subframe 210 of the oscillating frame 120 according to the invention, in particular of the scissor frame 200. The cover element 214 has been omitted in the illustrated embodiment for clarity.

[0059] The bearing element 300 is arranged in a cavity 212 of the subframe 210. The bearing element 300 comprises a bearing receptacle 302, for example, a bearing receptacle 302 that is continuous in the transverse direction y. The crossbar 250 is held in the bearing receptacle 302 for rotation. The position detection device 400 is arranged at an end opposite the bearing element 300 in the cavity 212 of the subframe 210. The bearing element 300 can flush cover an open profile side of a U-shaped or C-shaped subframe profile. The bearing element 300 can have a bearing housing 304. A first side of the bearing element 300, for example, a first housing side of the bearing housing 304, can cover the open profile side of the subframe profile. A second side of the bearing element 300 opposite the first side, in particular a second housing side of the bearing housing 304, can have a holder 306.The holder 306 can have at least two opposing holding elements 306.1. The holding elements 306.1 can be designed as holding arms. The holding elements 306.1 can form a holding rail.

[0060] The position detection device 400 comprises at least one angle sensor 402 configured to detect an angular position of the crossbar 250 as a relative position. The position detection device 400 comprises at least one permanent magnet 404 that interacts with the angle sensor 402. Based on magnetic field detection, the angle sensor 402 can determine an angular position of the crossbar 250.

[0061] The angle sensor 402 can be mounted in the holder 306 of the bearing element 300. For example, the angle sensor 402 can be fixed, for example, clamped or latched, between two holding elements 306.1 of the holder 306. Alternatively, the angle sensor 402 can be attached to an inner surface of the subframe 210.

[0062] The permanent magnet 404 can be arranged in and / or on a rod end 254 of the crossbar 250. In particular, the permanent magnet 404 can be arranged in and / or on a rod end 254 facing the angle sensor 402. The permanent magnet 404 can be rotationally fixedly mounted in and / or on the rod end 254.

[0063] When the crossbar 250 rotates about its rotational axis 252, the permanent magnet 404 moves with it, causing a change in the magnetic field orientation that can be detected by the angle sensor 402. This allows the angular position of the crossbar 250 to be determined.

[0064] Fig. 6 shows a schematic perspective view of a cover element 214 for covering a position detection device 400 of the oscillating frame 120 according to the invention, in particular the scissor frame 200.

[0065] In this embodiment, the cover element 214 is provided with a holder 216 for receiving the angle sensor 402.

[0066] The cover element 214 can have holding elements 216.1 extending in the longitudinal direction x. The holder 216 can have at least two opposing holding elements 216.1. The holding elements 216.1 can be designed as holding arms. The holding elements 216.1 can form a holding rail. The angle sensor 402 can be fastened in the holder 216 of the cover element 214. For example, the angle sensor 402 can be fixed, for example clamped or latched, between two holding elements 216.1 of the holder 216. Alternatively, the angle sensor 402 can be fastened to an inner surface of the subframe 210.

[0067] The cover element 214 may comprise a passage 218, for example an opening, for passing through a connecting cable 406 of the position detection device 400, in particular of the angle sensor 402. The connecting cable 406 may be a cable tail and / or a cable bundle.

[0068] Fig. 7 schematically shows in a perspective view a rod end 254 of a crossbar 250 according to a first embodiment.

[0069] The crossbar 250 can be formed as a tube. The crossbar 250 can include a cavity 256 or at least a recess at its end. The permanent magnet 404 can be rotationally fixedly mounted in the cavity 256. For this purpose, a magnet carrier 408 can be provided, for example. The magnet carrier 408 can be made of plastic, for example, polyamide (PA). The magnet carrier 408 can be rotationally fixedly mounted in the cavity 256 of the crossbar 250.

[0070] The magnet carrier 408 can have at least one magnet receptacle 408.1 in which the permanent magnet 404 can be arranged or can be arranged.

[0071] The permanent magnet 404 may, for example, be formed from a conventionally suitable magnetic material, such as ferrite.

[0072] Fig. 8 shows a schematic perspective view of a magnet carrier 408 that can be arranged or is arranged in a crossbar 250 according to a first embodiment.

[0073] The magnet carrier 408 can be a hollow cylindrical sleeve. The magnet carrier 408 can comprise a base body 408.2, for example, a sleeve body. The magnet receptacle 408.1 can, for example, be a cavity extending through the base body 408.2. The magnet carrier 408 can have a number of protruding, in particular radially protruding, fastening elements 408.3 on an outer circumference. The fastening elements 408.3 can, for example, be locking arms, locking lugs, or locking hooks. The magnet carrier 408 can be arranged at least in a form-fitting manner in the cavity 256 of the crossbar 250 via the fastening elements 408.3. The fastening elements 408.3 can be arranged at an angle to the outer circumference of the magnet carrier 408. This can simplify bracing, in particular clamping, of the magnet carrier 408 in the cavity 256. The magnet carrier 408, in particular the base body 408.2, may have a groove 408.4 indicating a pole direction of the permanent magnet 404. This can simplify correct alignment of the permanent magnet 404 during assembly.

[0074] Fig. 9 shows a schematic perspective view of an angle sensor 402 of the position detection device 400 according to an embodiment.

[0075] The angle sensor 402 can comprise a printed circuit board 402.1, for example a circuit board, and / or a suitable carrier, wherein the printed circuit board 402.1 and / or the carrier can be provided with at least one sensor element 402.2 for detecting a change in the pole orientation of the permanent magnet 404 relative to the angle sensor 402 and a connecting cable 406. The angle sensor 402 can, in particular, be designed to be space-saving and compact and can be easily installed or integrated into a frame part of the lower frame 210 or the upper frame 220. List of reference symbols 100 vehicle seats 102 Seat part 104 Backrest 106 Fittings 108 axis of rotation 110 Longitudinal adjustment device 112 Rail arrangement 114 First rail element (top rail) 116 Second rail element (bottom rail) 120 swing frame 200 scissor frame 202a, 202b swingarm 202.1 Swing arm end, in particular rear swing arm end 202.2 Swing arm end, in particular front swing arm end 204 Scissors axis 210 subframe 212 Cavity 214 Cover element 216 bracket 216.1 Holding element 220 upper frame 230 crossbar 240 crossbar 250 crossbar 252 axis of rotation 254 rod end 256 cavity 260 crossbar 270 linkage area 300 bearing element 302 bearing recording 304 bearing housing 306 bracket 306.1 Holding element 400 Position detection device 402 angle sensor 402.1 Printed circuit board 402.2 Sensor element 404 permanent magnet 406 connection cable 408 magnetic carriers 408.1 Magnetic holder 408.2 Basic body 408.3 Fastening element 408.4 Groove x longitudinal direction y transverse direction z Vertical direction QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 2 321 149 B1

[0002]

Claims

[1] Oscillating frame (120) for a vehicle seat (100), in particular a oscillating seat and / or a commercial vehicle seat, comprising at least one subframe (210) and a rocker arm (202a, 202b) which is movable, in particular oscillatable, relative to the subframe (210) and which is articulated to the subframe (210) at least at a lower rocker end (202.1) via a crossbar (230 to 260), wherein at least one position detection device (400) for detecting an assumed relative position of the crossbar (230 to 260) is arranged in the subframe (210), and wherein the crossbar (230 to 260) is movable about an axis of rotation (252) when the rocker arm (202a, 202b) moves. [2] Oscillating frame (120) according to claim 1, characterized bythat the position detection device (400) is configured to determine a deflection of the rocker (202a, 202b) and / or a height, in particular seat height, of the vehicle seat (100) on the basis of the detected relative position of the crossbar (230 to 260). [3] Oscillating frame (120) according to claim 1 or 2, characterized by that the lower end of the swing arm (202.1) is connected to the cross bar (250) in a rotationally fixed manner. [4] Oscillating frame (120) according to one of claims 1 to 3, characterized by that the position detection device (400) is arranged in a linkage region (270) of the crossbar (230 to 260) in and / or on the subframe (210). [5] Oscillating frame (120) according to one of claims 1 to 4, characterized bythat in a cavity (212) of the subframe (210) at least one bearing element (300) is arranged, which comprises at least one bearing receptacle (302) in which the crossbar (230 to 260) is held in a rotatably guided manner, wherein the position detection device (400) is arranged at an end in the cavity (212) of the subframe (210) opposite the bearing element (300). [6] Oscillating frame (120) according to one of claims 1 to 5, characterized by that the position detection device (400) comprises at least one angle sensor (402) which is designed to detect an angular position of the crossbar (230 to 260) as a relative position, wherein in particular a permanent magnet (404) cooperating with the angle sensor (402) is arranged on and / or in the crossbar (230 to 260). [7] Oscillating frame (120) according to one of claims 1 to 6, characterized bythat the crossbar (230 to 260) comprises a cavity (256) in which a magnet carrier (408) is fastened. [8] Oscillating frame (120) according to one of claims 1 to 7, characterized by that the rocker (202a, 202b) is designed to be capable of swinging, wherein an upper rocker end (202.2) of the rocker (202a, 202b) is held movably guided in the longitudinal direction (x) via a sliding element on an upper frame (220), and wherein a height of the upper frame (220) relative to the lower frame (210) can be changed by a movement of the rocker (202a, 202b). [9] Oscillating frame (120) according to one of claims 1 to 8, characterized by at least one oscillatable pair of rockers (202a, 202b) which intersect at a scissor axis (204), wherein the rockers (202a, 202b) are pivotable relative to one another about the scissor axis (204). [10] Vehicle seat (100), in particular a suspension seat and / or a commercial vehicle seat, with at least one seat part (102) and a suspension frame (120) connected to the seat part (102) according to one of claims 1 to 9. [11] Vehicle seat (100) according to claim 10, characterized by that the oscillating frame (120) is an oscillating scissor frame (200).

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