Vehicle seat with locking lever
By setting segments on the control lever of the vehicle seat that contact or are spaced out from the seat, the problems of seat misuse and structural complexity are solved, achieving simplified structure and safe seat use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BROSE FAHRZEUGTEILE GMBH & CO KG
- Filing Date
- 2021-02-19
- Publication Date
- 2026-06-23
AI Technical Summary
Existing vehicle seats are prone to unintentional misuse, which can lead to occupants being trapped or parts being damaged. Furthermore, existing end stops are complex and require numerous additional components.
By setting segments on the joystick so that it contacts or is spaced from the components of the seat, an end stop function is provided to prevent unintentional movement of the seat. The joystick also serves as a locking device, simplifying the structure.
It effectively prevents accidental misuse of vehicle seats, simplifies the structure, avoids component damage, and provides flexible seat use and safety.
Smart Images
Figure CN116829406B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a vehicle seat. Background Technology
[0002] This vehicle seat includes: a seat portion having a seat portion element; a base; and a lever rotatably connected to the seat portion element, wherein the seat portion element is supported on the base in a manner movably relative to the base via the lever.
[0003] Such a vehicle seat is described in DE 10 2019 101 551 A1. In this vehicle seat, a lock is mounted on a lever to lock the vehicle seat in a usable, occupant position. The lock can be released to move the vehicle seat to a convenient access position, which serves as the functional position. In the convenient access position, the seat portion and backrest move forward to facilitate passenger access to the row of vehicle seats located behind the vehicle seat.
[0004] Vehicle seats, as described above, are typically prone to unintentional misuse. For example, when a vehicle with a seat is parked on a steep street, the seat may tend to move from an easy-access position back to a usable position, posing a risk of occupants becoming trapped. When the vehicle seat is adjustable and / or can be moved to more than one functional position (such as an easy-access position and a fold-down position), there is a risk that the user may activate another function while the seat is in one functional position. Depending on the vehicle seat's structure, this could again lead to the risk of trapping the user and / or damaging vehicle seat components. Typically, corresponding countermeasures require complex construction.
[0005] While it is conceivable to provide end stops to limit unintended movement, these arrangements typically require a large number of additional components, which again leads to complex structures. Summary of the Invention
[0006] The purpose of this invention is to provide an improved vehicle seat.
[0007] This objective is achieved by a vehicle seat having the features of the present invention.
[0008] The vehicle seat includes a joystick having segments adapted to contact at least one component of the seat portion when the joystick is rotated relative to the seat portion components.
[0009] This cooperation between the joystick and at least one of the components allows for end stops to be provided for the movement of the vehicle seat without additional components or with very few additional components. This allows for the use of a simple structure to mitigate the potential effects of misuse of the vehicle seat. In particular, this allows for additional uses for the joystick, as it can be used as a locking device. In turn, the joystick itself can control the movement of components of the vehicle seat. This allows for the prevention of accidental misuse of the vehicle seat, and in particular, the prevention of unintentional movement of the vehicle seat or its components. At least the seat component element is supported on the base via the joystick. When an occupant occupies the vehicle seat in a usable seating position, the occupant's weight is transmitted via the seat component to the joystick and from the joystick to the base.
[0010] The seat portion may include a seat plate. The seat plate is adapted to support a user occupying a vehicle seat. For example, the seat plate includes and / or supports a seat cushion. For example, at least one component of the seat portion is attached to and / or forms part of the seat plate. This allows for a particularly simple structure.
[0011] The seat plate may be movable relative to the seat components, for example for height adjustment and / or for adjusting the vehicle seat between a seated position and a folded-down position, as will be further described below.
[0012] The at least one component may be or include a component (e.g., a bracket) fixed to the seat plate, such as a crossbar fixed to the seat plate, and the component is adapted to prevent movement of the seat plate relative to the seat portion elements, for example, when the vehicle seat is in the easy-access position, by cooperating with the segment of the lever. This allows for prevention of misuse, such as preventing activation of the fold-flat function when the vehicle seat is in the easy-access position.
[0013] Alternatively or additionally, the at least one component may be or include a component that can be fixed to the seat plate or a portion of the seat plate (e.g., a crossbar of the seat plate), and this component is adapted to prevent movement of the seat portion relative to the base, for example, when the vehicle seat is in a folded-flat position, by cooperating with the segment of the lever. This allows for prevention of misuse, such as preventing activation of the convenient access function when the vehicle seat is in a folded-flat position.
[0014] Optionally, the segment of the lever has a first surface adapted to contact one component of the seat portion (e.g., a bracket) and a second surface adapted to contact another component of the seat portion (e.g., a crossbar). This allows for dual use of the segment, thereby further reducing the complexity of the vehicle seat.
[0015] Alternatively, the first and second surfaces are disposed on different surfaces of the segment of the joystick, such as the end face and the side face. This allows for a simple and robust structure.
[0016] The joystick is rotatably connected to the base at a first pivot axis and rotatably connected to a seat component at a second pivot axis, wherein the segment faces away from the first pivot axis. The first pivot axis and the second pivot axis are spaced apart. The segment may extend at an angle relative to the straight line connecting the first and second pivot axes.
[0017] The vehicle seat has a kinematic arrangement including the control lever. The vehicle seat can be configured in at least one commutable use position and at least one functional position via this kinematic arrangement. This allows for particularly flexible use of the vehicle seat. Optionally, the kinematic arrangement includes a four-bar linkage. This four-bar linkage may include the base, the control lever, another control lever, and the seat portion. The four-bar linkage allows for very high stability and can precisely define the kinematics of the seat portion.
[0018] Alternatively, the segment of the joystick is adapted to cooperate with the at least one component in the at least one functional position to lock the movement of the components of the seat portion. This allows for the avoidance of misuse when presenting the functional position.
[0019] The segment of the joystick can be adapted to contact at least one component of the seat portion in the at least one functional position, and spaced apart from the at least one component in the at least one chauffeured use position. This allows for avoidance of misuse in the functional positions.
[0020] For example, the at least one functional position includes a convenient access position and / or a fold-down position. Vehicle seats define a designed seating position, in which an occupant occupying the vehicle seat in that designed position appears to have a front and rear. For example, the backrest of the vehicle seat is arranged at the rear or rear side of the vehicle seat, allowing the occupant to lean back against the backrest. Many vehicles include more than one row of vehicle seats, such as two or three rows. Some vehicles have two (or three) rows of vehicle seats, but only one (or two) doors on each side. To facilitate occupant access to the row of vehicle seats behind a row of vehicle seats having the vehicle seats described herein, the vehicle seat or at least a portion thereof can be moved forward, i.e., forward-facing, in the convenient access position, and thus the vehicle seat is configured to be forward-facing, i.e., forward-facing, in the convenient access position. Because the kinematic arrangement supports the seat portion, the seat portion moves forward and can provide particularly comfortable access to the next row. In other cases, it is desirable to convert the vehicle seat into a table or provide expanded storage space. Therefore, in the fold-down position, the backrest can be folded forward. The seat portion may include a seat plate movable relative to the seat portion elements to move the vehicle seat between a usable seating position and a folded-down position. Therefore, the kinematic arrangement may include a folding-down lever movably connecting the seat portion elements to the seat plate. To allow the backrest to be folded down, for example, to a flat position, the seat plate can be lowered via the kinematic arrangement, particularly to allow the backrest to fold down more deeply.
[0021] The kinematically arranged lever can be configured to rotate relative to seat components as the vehicle seat moves between a usable seating position and a convenient access position. Therefore, the lever can be used to support the seat portion and limit movement of at least a portion of the seat portion.
[0022] For example, at least one component of the seat portion is a crossbar, or a crossbar attached to the seat portion. This allows for solutions with exceptional rigidity, requiring little or no additional material.
[0023] Optionally, the vehicle seat includes a longitudinal adjustment device comprising at least an upper guide rail and a lower guide rail that are longitudinally adjustable relative to each other, wherein the base is at least partially formed by and / or mounted on the upper guide rail. Alternatively, a kinematically arranged lever is pivotally mounted on the vehicle floor. The longitudinal adjustment device allows for longitudinal adjustment of the vehicle seat in a usable seating position and / or allows for longitudinal displacement to present an easy entry position. Attached Figure Description
[0024] The foregoing and other advantages of this solution will be apparent to those skilled in the art upon consideration of the following description and accompanying drawings. Wherein:
[0025] Figure 1 The seat portion of the vehicle seat is shown in its folded-flat position;
[0026] Figure 2 The seat portion of the vehicle seat is shown in an easy-access position;
[0027] Figure 3 The diagram shows a joystick with the vehicle seat in a folded, flat position, and components that work in conjunction with the joystick to control the movement of parts of the vehicle seat.
[0028] Figure 4 The diagram shows the segments of the joystick in its folded, flat position, as well as details of the components that work with it.
[0029] Figure 5 A perspective view of the seat portion of a vehicle seat in an easy-access position is shown;
[0030] Figure 6 One of the levers shown is a lever in the kinematic arrangement of a vehicle seat in an easy-access position; and
[0031] Figure 7 A rear view of the vehicle seat in an easy-access position is shown. Detailed Implementation
[0032] Figure 1 This is a cross-sectional view of vehicle seat 1, showing the interior left side of vehicle seat 1. Vehicle seat 1 also includes a corresponding right side, which may include, for example, a portion that is the same as or a mirror image of the left side.
[0033] Generally, a vehicle seat 1 includes a seat portion 10 on which an occupant can sit, a base 11 supporting the seat portion 10, and a kinematic arrangement 12 movably connecting the seat portion 10 to the base 11. The vehicle seat 1 further includes a longitudinal adjustment device 13 that allows the seat portion 10 to move longitudinally relative to the vehicle floor VF. The vehicle seat 1 can be mounted on the vehicle floor VF via the longitudinal adjustment device 13, and is mounted on the vehicle floor VF via the longitudinal adjustment device 13. In other embodiments, the vehicle seat does not include the longitudinal adjustment device 13. In such embodiments, the base 11 can be mounted on and on the vehicle floor VF, or the vehicle floor VF can be used as a base.
[0034] The vehicle seat 1 further includes a lock 14 and a backrest 15, the lock 14 locking the seat portion 10 to the longitudinal adjustment device 13 in a releasable manner, and the backrest 15... Figure 1 Not shown in the text but Figure 7As can be seen. A pair of recliners 16 (see...) Figure 7 The seat portion 10 is connected to the backrest 15, allowing adjustment of the tilt of the backrest 15 relative to the seat portion 10. The backrest 15 is mounted on the seat portion 10. Therefore, movement of the seat portion 10 relative to the vehicle floor VF also causes movement of the backrest 15 relative to the vehicle floor VF.
[0035] The vehicle seat 1 can be adjusted to present one of multiple positions. In particular, the vehicle seat 1 can be configured in multiple usable seating positions. Figure 1 A seating position SU is shown in dashed lines. In this seating position SU, an occupant can sit in the vehicle seat 1; that is, this seating position SU is designed for sitting. Different seating positions SU may differ from each other due to factors such as the inclination of the backrest 15 relative to the seat portion 10, the longitudinal adjustment position via the longitudinal adjustment device 13, etc.
[0036] Furthermore, vehicle seat 1 can be configured in one of two functional positions, namely Figure 1 The folded and flattened position FF is shown in solid line in the middle, and Figure 2 The convenient access position EE is shown in the diagram. In other words, vehicle seat 1 offers both a fold-flat function and convenient access.
[0037] Below, the main references are as follows: Figure 1 Describe the folding and flattening function, then refer to the main references. Figure 2 Describe the convenient access function.
[0038] The seat portion 10 of the vehicle seat 1 includes two seat portion elements 100 (one on each side, one of which is in...) Figure 1 (as shown in the image) and seat plate 101. Figure 1 The following description of the visible seat component 100 corresponds to another seat component of the vehicle seat 1, and also applies to the components of the kinematic arrangement 12. Each seat component 100 is supported on the base 11 by two levers of the kinematic arrangement 12, which, for ease of reference, are referred to as the first access lever 120 and the second access lever 121. The first access lever 120 is positioned in front of the second (rear) access lever 121. The first access lever 120 is pivotally mounted on the base 11 via pivot axis A1. The seat component 100 is pivotally mounted on the first access lever 120 via pivot axis A2. The second access lever 121 is pivotally mounted on the base 11 via pivot axis A3. The seat component 100 is pivotally mounted on the second access lever 121 via pivot axis A4.
[0039] The base 11, the access levers 120 and 121, and the seat components 100 together form a four-bar linkage. Each of the access levers 120 and 121 is formed as a single piece.
[0040] Seat plate 101 includes two side portions 104 ( Figure 1 One of them is shown in the figure. The two side portions 104 are connected to each other by several crossbars 102, 103. The seat plate 101 is adapted to support the seat cushion. The seat plate 101 is supported by the seat part element 100. In the front portion, the seat plate 101 is movably connected to the seat part element 100 by a lever of the kinematic arrangement 12 (hereinafter referred to as the folding lever 122). The folding lever 122 is pivotally connected to the seat part element 100 via a pivot axis A5 and pivotally connected to the seat plate 101 via another pivot axis A6. At the rear end, the seat plate 101 includes arms 105 (on each of the left and right sides). The arms 105 are pivotally connected to the backrest 15 and spaced apart from the tilt axis (above) of the tilt adjuster 16 (see figure). Figure 7 Therefore, folding the backrest 15 forward (backward) causes the folding lever 122 to pivot forward (backward). As a result, when the backrest 15 folds forward, the seat plate 101 moves forward and lowers to... Figure 1 The folded-flat position FF is shown. This allows the backrest 15 to be folded into a horizontal or near-horizontal arrangement, for example, to be used as a table and / or to increase cargo space.
[0041] Lock 14 is locked in the seated position SU and the folded-flat position FF.
[0042] The folding function can be activated in the seat position SU by folding the backrest 15 onto the seat portion 10, for example by releasing the tilt adjuster 16 and manually folding the backrest 15, or by using an actuation device.
[0043] The longitudinal adjustment device 13 includes an upper guide rail 130 and a lower guide rail 131. The upper guide rail 130 is guided longitudinally on the lower guide rail 131. A base 11 is fixed to the upper guide rail 130 (or alternatively, the upper guide rail 130 serves as the base 11). The lower guide rail 131 is fixed to the vehicle floor VF.
[0044] Figure 2The vehicle seat is shown in the easy-access position EE. Lock 14 is released, i.e., hook 140 mounted on seat portion element 100 disengages from pin 141 mounted on upper guide rail 130 of longitudinal adjustment device 13. This allows movement of seat portion 10 (and backrest 15) relative to base 11 via kinematic arrangement 12. Starting from the décor position SU, after releasing lock 14, seat portion 10 and backrest 15 can move forward, wherein easy-access levers 120, 121 pivot forward on base 11 about their pivot axes A1, A3. Therefore, not only does backrest 15 fold forward, but seat portion also moves forward to allow particularly easy access to the row of seats located behind vehicle seat 1.
[0045] In the rideable position SU, the convenient access function is activated by unlocking the lock 14.
[0046] However, when the easy access function is activated while the vehicle seat 1 is in the folded-flat position FF, or when the folded-flat function is activated while the vehicle seat is in the easy access position EE, the unpredictable movement of the seat portion 10 and the backrest 15 will usually result in the user having difficulty operating the vehicle, or may even damage the components or pose a risk of trapping the user.
[0047] Therefore, the vehicle seat is equipped with a protective mechanism that prevents movement to the easy access position from the folded-flat position and also prevents movement to the folded-flat position from the easy access position. This mechanism has a particularly simple structure and includes a segment 123 of a first easy access lever 120, a rear crossbar 102, and a bracket 107 mounted on another crossbar 103, which is further mounted to the front of the vehicle seat 1. The segment 123 can be covered, for example, by an additional damping element.
[0048] Specifically, a segment 123 of the first convenient access lever 120 is adapted and arranged to: in at least one position of the first convenient access lever 120, when the lever is rotated relative to the seat portion element 100, contact and cooperate with at least one component (crossbar 102 and support 107) of the seat portion 10, wherein the segment 123 is adapted and arranged to cooperate with the at least one component (crossbar 102 and support 107) in the at least one functional position EE, FF, and spaced apart from and disengaged from the at least one component (crossbar 102 and support 107) in the at least one chaisetable use position SU. In the chaisetable use position SU, the segment 123 does not cooperate with the at least one component.
[0049] In this example, segment 123 of the first access lever 120 is adapted to cooperate with the crossbar 102 in the folded flat position FF and with the bracket 107 in the access position.
[0050] A segment 123 of the first access lever 120 protrudes from the remainder of the lever. The first access lever 120 includes a portion extending along a straight line between pivot axes A1 and A2, and segment 123 protrudes from this portion at an angle relative to the straight line. Segment 123 extends further away from pivot axis A2 at the seat component 100 from pivot axis A1 at the base 11. The distance of segment 123 to pivot axis A1 at the base 11 is greater than the distance between the two pivot axes A1 and A2.
[0051] Special Reference Figure 1 , Figure 3 and Figure 4 The cooperation of segment 123 of the first access lever 120 with the crossbar 102 in the folded flat position FF will now be described.
[0052] In the folded, flat position FF, segment 123 of the first easy-access lever 120 abuts against (rear side) the crossbar 102. Segment 123 of the first easy-access lever 120 may be adapted to contact the crossbar 102, for example, to provide a stop or to leave a gap therebetween, such as... Figure 4 As shown. Optionally, segment 123 is provided with a damping element.
[0053] Especially from Figure 3 As can be seen, segment 123 of the first convenient access lever 120 has a first surface 124A, which contacts or directly faces the crossbar 102 in the folded flat position FF. To increase stability, the first surface 124A is formed by a curved portion of the material forming the first convenient access lever 120.
[0054] When the user attempts to lie flat in the folded position FF (i.e., from...) Figure 1 , Figure 3 and Figure 4 When the access function is activated (starting from the position shown), the first access lever 120 will pivot in the forward direction, but this movement is blocked by the collision of segment 123 with the crossbar 102 (more precisely, its first surface 124A collides with the crossbar 102).
[0055] Therefore, it is particularly easy to prohibit moving the vehicle seat 1, which is configured in the folded-flat position FF, to the easy-access position EE.
[0056] Special Reference Figure 2 , Figure 5and Figure 6 The cooperation of segment 123 of the first convenient access lever 120 with bracket 107 in the convenient access position EE will now be described.
[0057] In the easy-access position EE, a segment 123 of the first easy-access lever 120 abuts against a bracket 107 mounted on a crossbar 103 (this crossbar 103 is spaced apart from the crossbar 102 that cooperates with the segment 123 in the folded-flat position FF). The segment 123 of the first easy-access lever 120 may be adapted to contact the bracket 107, for example, to provide a stop or to leave a gap therebetween, such as... Figure 6 As shown. As described above, optionally, this segment 123 is provided with a damping element.
[0058] Especially in Figure 6 As can be seen, segment 123 of the first access lever 120 has a second surface 124B, which contacts or directly faces the bracket 107 in the access position EE. To increase stability, the second surface 124B is formed by a curved portion of the material forming the first access lever 120. Through this curved portion, segment 123 can have an S-shaped cross-section.
[0059] A first surface 124A extends in a first flat plane, and a second surface 124B extends in a second flat plane. The first flat plane and the second flat plane extend orthogonally to each other (in other embodiments, they extend at another angle, typically at an angle to each other).
[0060] When a user attempts to access a convenient location EE (i.e., from...) Figure 2 , Figure 5 and Figure 6 When the folding and flattening function is activated (starting from the position shown), the first convenient access lever 120 will pivot in the rearward direction, but this movement is blocked by the collision of segment 123 with bracket 107 (more precisely, its second surface 124B collides with bracket 107).
[0061] Therefore, moving the vehicle seat 1, configured in the easy-access position EE, to the folded-flat position FF is prevented in a particularly simple manner. More specifically, when the vehicle seat 1 is configured in the corresponding other position, the two surfaces of the same segment 123 of the first easy-access lever 120 prevent activation of either the easy-access function or the folded-flat function. A simple yet effective mechanical barrier against the dual actuation of the easy-access function and the folded-flat function is provided by the segment 123 of the first easy-access lever 120 and its cooperating components.
[0062] List of reference numerals
[0063] 1. Vehicle Seats
[0064] 10 Seating Section
[0065] 100 Seat components
[0066] 101 Seat Plate
[0067] 102 Crossbar (component)
[0068] 103 Horizontal bar
[0069] 104 Side Part
[0070] 105 arms
[0071] 106 Attachment Area
[0072] 107 Bracket (Component)
[0073] 11. Base
[0074] 12. Kinematic Arrangement
[0075] 120 (First) Easy access to the joystick
[0076] 121 (Second) Convenient access to the joystick
[0077] 122 Folding and flattening control lever
[0078] 123 segmentation
[0079] 124A First Surface
[0080] 124B Second Surface
[0081] 13. Longitudinal adjustment device
[0082] 130 upper guide rail
[0083] 131 Lower guide rail
[0084] 14 locks
[0085] 140 hooks
[0086] 141 sales
[0087] 15 Backrest
[0088] 16 Tilt Adjuster
[0089] A1-A8 Pivot Axis
[0090] VF vehicle floor
[0091] EE Easy Access Location
[0092] FF Folded flat position
[0093] SU (Suitable Seat)
Claims
1. A vehicle seat (1), comprising: - Seat portion (10), said seat portion (10) having seat portion element (100). - Base (11), and - A joystick (120) is rotatably connected to the seat component (100), and the seat component (100) is supported on the base (11) in a movable manner relative to the base (11) via the joystick. Its features The joystick (120) has a segment (123) adapted to contact at least one component (102, 107) of the seat portion (10) by rotation of the joystick (120) relative to the seat portion element (100). The vehicle seat (1) also includes a kinematic arrangement (12) of the joystick (120), wherein the vehicle seat (1) can be configured by the kinematic arrangement (12) to at least one usable position (SU) and at least one functional position (EE, FF). The segment (123) of the joystick (120) is adapted to contact at least one component (102, 107) of the seat portion (10) in the at least one functional position (EE, FF) and to be spaced apart from the at least one component (102, 107) in the at least one usable position (SU).
2. The vehicle seat (1) according to claim 1, characterized in that, The seat portion (10) includes a seat plate (101), wherein at least one component (102, 107) of the seat portion (10) is fixed to the seat plate (101).
3. The vehicle seat (1) according to claim 2, characterized in that, The seat plate (101) is movable relative to the seat portion element (100).
4. The vehicle seat (1) according to claim 3, characterized in that, The at least one component (102, 107) includes a component (107) fixed to the seat plate (101), the component (107) being adapted to prevent the seat plate (101) from moving relative to the seat portion element (100) by cooperating with the segment (123) of the joystick (120).
5. The vehicle seat (1) according to claim 1, characterized in that, The at least one component (102, 107) includes a component (102) adapted to prevent the seat plate (101) from moving relative to the base (11) by cooperating with the segment (123) of the joystick (120).
6. The vehicle seat (1) according to claim 1, characterized in that, The segment (123) of the joystick (120) has a first surface (124A) adapted to contact one part (102) of the seat portion (10) and a second surface (124B) adapted to contact another part (107) of the seat portion (10).
7. The vehicle seat (1) according to claim 6, characterized in that, The first surface (124A) and the second surface (124B) are disposed on different surfaces of the segment (123) of the joystick (120).
8. The vehicle seat (1) according to claim 1, characterized in that, The joystick (120) is rotatably connected to the base (11) at a first pivot axis (A1) and rotatably connected to the seat component (100) at a second pivot axis (A2), wherein the segment (123) faces away from the first pivot axis (A1).
9. The vehicle seat (1) according to claim 1, characterized in that, The segment (123) of the joystick (120) is adapted to cooperate with the at least one component (102, 107) in the at least one functional position (EE, FF) to lock the movement of the components of the seat portion (10).
10. The vehicle seat (1) according to claim 1, characterized in that, The at least one functional position (EE, FF) includes at least one of an easy access position (EE) and a fold-flat position (FF).
11. The vehicle seat (1) according to claim 10, characterized in that, The joystick (120) of the kinematic arrangement (12) is configured such that when the vehicle seat (1) moves between the usable seating position (SU) and the convenient access position (EE), the joystick (120) rotates relative to the seat portion element (100).
12. The vehicle seat (1) according to claim 1, characterized in that, The at least one component (102, 107) of the seat portion (10) is a crossbar or is attached to a crossbar (103).