Slide rail assembly and seat translation driving mechanism

Abstract

The invention relates to the technical field of vehicle seats, in particular to a sliding rail assembly and a seat translation driving mechanism, which comprises a base, a seat bracket, a first rail, a second rail, a driving part and a transmission part, the first rail and the second rail are arranged in a relative sliding manner, and the base is fixedly arranged on a vehicle body; the seat bracket is movably arranged on the base; the first rail is slidably connected with the base, and the second rail is fixedly connected with the seat support. The driving piece is connected with the first rail and drives the first rail to slide relative to the base; the transmission part is connected between the first rail and the second rail, so that the second rail slides relative to the first rail. According to the sliding rail assembly, the first rail and the second rail which are segmented are adopted, the sliding stroke of the seat support is increased, the seat is horizontally moved to the aisle position to be rotated, and the sliding rail assembly is particularly suitable for the situation that the seat interval is small.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle seats, and in particular to a slide rail assembly and a seat translation driving mechanism. Background Art

[0002] In the prior art, the seats on vehicles have been transformed from fixed seats to rotatable seats with changeable directions. The seats need to slide and rotate during the position conversion process. At present, the mechanism for realizing the sliding of the seats is generally a crank mechanism, such as a crank slider self-locking mechanism and an electric rotating seat self-locking device disclosed in the patent with publication number CN118770026A. The crank slider is used to realize the sliding drive of the seat, but this method is still limited by the length of the slide rail, especially when the distance between adjacent seats is narrow, the insufficient sliding stroke will cause interference with the rotation of the seat. Summary of the invention

[0003] In order to solve the problem in the prior art that the electric seat has insufficient sliding stroke and causes rotation interference, the present invention provides a slide rail assembly with increased sliding stroke and a seat translation drive mechanism.

[0004] The technical solution adopted by the present invention to solve its technical problem is: A slide rail assembly, comprising: A base, wherein the base is fixedly arranged on the vehicle body; A seat bracket, wherein the seat bracket is movably arranged on the base; A first rail and a second rail are arranged to slide relative to each other, wherein the first rail is slidably connected to the base, and the second rail is fixedly connected to the seat bracket; A driving member, the driving member is connected to the first rail and drives it to slide relative to the base; The transmission member is connected between the first rail and the second rail so that the second rail slides relative to the first rail.

[0005] Furthermore, the transmission member includes a gear rotatably arranged on the first rail, a first rack is fixed on the base, a second rack is fixed on the seat support, and the gear is meshed between the first rack and the second rack.

[0006] Furthermore, the second rail includes a first inner guide rail, which is slidably matched with a first outer guide rail, a second inner guide rail is fixed on the base, and the second inner guide rail is slidably matched with a second outer guide rail, and the first outer guide rail and the second outer guide rail are fixed and constitute the first rail.

[0007] A seat translation drive mechanism includes the above-mentioned slide rail assembly, wherein the drive member includes a rocker rod, the rocker rod is rotatably connected to the seat bracket, the first end of the rocker rod is connected to a power mechanism that drives the rocker rod to swing, and the second end of the rocker rod is transmission-connected to the first rail and drives the first rail to slide relative to the base.

[0008] Furthermore, the power mechanism includes a driving plate rotatably arranged on the seat support, the driving plate is provided with a variable diameter track, and the second end of the rocker arm moves along the variable diameter track.

[0009] Furthermore, the swing rod is provided with a slide groove along its length direction, and a rotating member adapted to its width is provided in the slide groove, and the rotating member is rotatably mounted on the first rail.

[0010] Furthermore, a mounting seat is fixed on the first rail, and the gear and the rotating member are both rotatably arranged on the mounting seat.

[0011] Furthermore, the first outer guide rail and the second outer guide rail are fixedly connected via the mounting seat, which not only serves to mount the gear and the rotating member, but also can fix the first outer guide rail and the second outer guide rail, thus having good functionality and good overall structural integration.

[0012] Furthermore, the first outer guide rail and the second outer guide rail are arranged opposite to each other, so that the first inner guide rail and the second inner guide rail are symmetrically arranged on both sides of the first rail, and the spatial layout is reasonable.

[0013] Furthermore, the rotating member is a first bearing, the width of the slide groove matches the outer diameter of the first bearing, and both ends of the slide groove are provided with semicircular grooves matching the outer diameter of the first bearing. The semicircular groove fits the first bearing, and the movement process is smoother and more stable with less noise.

[0014] Beneficial effects: (1) The slide rail assembly of the present invention adopts a segmented first rail and a second rail, which increases the sliding stroke of the seat bracket and translates the seat to the aisle position for rotation, which is particularly suitable for situations where the seat intervals are small; (2) The relative sliding of the first rail and the second rail is achieved through the transmission of a gear rack, which has a simple structure, is easy to implement, and has high transmission accuracy; (3) The sliding of the first rail is achieved through the swing of a rocker arm, which can be set on the seat bracket and connected to a power mechanism at the first end of the rocker arm, which makes reasonable use of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the slide rail assembly of the present invention; Figure 2 It is a front structural schematic diagram of the seat translation drive mechanism of the present invention; Figure 3 It is a schematic diagram of the reverse structure of the seat translation driving mechanism of the present invention; Figure 4 This is a structural schematic diagram of the seat translation drive mechanism of the present invention with part of the base omitted; Figure 5 A schematic diagram of the structure of the mounting base.

[0017] 1. base, 2. seat bracket, 3. gear, 4. first rack, 5. second rack, 6. first inner guide rail, 7. first outer guide rail, 8. second inner guide rail, 9. second outer guide rail, 10. rocker arm, 101. slide groove, 11. drive plate, 111. variable diameter track, 12. rotating part, 13. mounting seat, 14. mounting frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0024] like Figure 1, is a slide rail assembly of the present invention, including a base 1, a seat bracket 2, a first rail, a second rail, a driving member and a transmission member, the base 1 is fixedly arranged on the vehicle body; the seat bracket 2 is movably arranged on the base 1, in addition, the seat bracket 2 is also provided with a motor and other devices for driving the main shaft of the seat to rotate, which are not repeated here; the first rail is slidably connected to the base 1, the second rail is fixedly connected to the seat bracket 2, and the second rail is slidably connected to the first rail; the driving member is connected to the first rail and drives it to slide relative to the base 1; the driving member can be a separately arranged motor or cylinder and other devices, which are installed on the base and drive the first rail to move, and can also be driven by a connecting rod and other structures.

[0025] The transmission member is connected between the first rail and the second rail so that the second rail slides relative to the first rail. The transmission member may be a cylinder. Preferably, the transmission member includes a gear 3 rotatably arranged on the first rail, a first rack 4 is fixed on the base 1, a second rack 5 is fixed on the seat support 2, and the gear 3 is meshed between the first rack 4 and the second rack 5.

[0026] The second rail includes a first inner rail 6, which is slidably matched with a first outer rail 7, a second inner rail 8 is fixed on the base 1, and the second inner rail 8 is slidably matched with a second outer rail 9, and the first outer rail 7 and the second outer rail 9 are fixed to form the first rail. In order to facilitate the setting of the positions of the first rack 4 and the second rack 5, the first outer rail 7 and the second outer rail 9 are arranged back to back.

[0027] like Figures 2~5 , is a seat translation drive mechanism of the present invention, including the above-mentioned slide rail assembly. In this embodiment, the driving member includes a rocker arm 10, which is rotatably connected to the seat bracket 2. The first end of the rocker arm 10 is connected to a power mechanism that drives it to swing, and the second end of the rocker arm 10 is transmission-connected to the first rail and drives the first rail to slide relative to the base 1.

[0028] In order to facilitate the connection between the swing rod 10 and the seat bracket 2, a mounting frame 14 can be fixed on the seat bracket 2, and the swing rod 10 is rotatably connected to the mounting frame 14. The rotation center of the swing rod 10 is as follows: Figure 3 and Figure 4 Point O is shown.

[0029] The power mechanism for driving the swing rod 10 to swing may include a motor, the output end of the motor may be connected to a rotating arm, and the rotating arm is in transmission connection with the swing rod 10 to realize the swing of the swing rod 10. As another embodiment of the present invention, the power mechanism includes a driving plate 11 rotatably arranged on the seat support 2, and a variable diameter track 111 is arranged on the driving plate 11, and the second end of the swing rod 10 moves along the variable diameter track 111. The swing rod 10 is provided with a slide groove 101 along its length direction, and a rotating member 12 adapted to its width is arranged in the slide groove 101, and the rotating member 12 is rotatably mounted on the first rail. As an embodiment, the rotating member 12 is a first bearing, and the width of the slide groove 101 matches the outer diameter of the first bearing, and semicircular grooves matching the outer diameter of the first bearing are arranged at both ends of the slide groove 101. In order to save costs, reduce friction and reduce noise, a second bearing can be installed on the swing rod 10, and the outer ring of the second bearing contacts the two side walls of the variable diameter track 111 and rolls along the variable diameter track 111.

[0030] A mounting seat 13 is fixed on the first rail, and the gear 3 and the rotating member 12 are both rotatably arranged on the mounting seat 13. The first outer guide rail 7 and the second outer guide rail 9 are fixedly connected via the mounting seat 13.

[0031] Working principle: The driving device such as the motor drives the driving plate 11 to rotate, and the rocker arm 10 swings, driving the first rail to slide relative to the base 1. At the same time, the gear 3 is engaged with the first rack 4 and the second rack 5, and the second rail slides relative to the first rail. Therefore, the sliding stroke of the seat bracket 2 is the sum of the strokes of the first rail and the second rail, so that the sliding stroke of the seat bracket 2 is increased.

[0032] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slide rail assembly, characterized in that: include: A base (1), wherein the base (1) is fixedly arranged on the vehicle body; A seat support (2), wherein the seat support (2) is movably arranged on the base (1); A first rail and a second rail arranged to slide relative to each other, the first rail being slidably connected to the base (1), and the second rail being fixedly connected to the seat support (2); A driving member, the driving member being connected to the first rail and driving the first rail to slide relative to the base (1); A transmission member, wherein the transmission member is connected between the first rail and the second rail so that the second rail slides relative to the first rail; The transmission member comprises a gear (3) rotatably arranged on the first rail, a first rack (4) is fixed on the base (1), a second rack (5) is fixed on the seat support (2), and the gear (3) is meshed between the first rack (4) and the second rack (5).

2. A slide rail assembly according to claim 1, characterized in that: The second rail comprises a first inner guide rail (6), the first inner guide rail (6) is slidably matched with a first outer guide rail (7), a second inner guide rail (8) is fixed on the base (1), the second inner guide rail (8) is slidably matched with a second outer guide rail (9), and the first outer guide rail (7) and the second outer guide rail (9) are fixed and constitute the first rail.

3. A seat translation drive mechanism, characterized in that: It comprises the slide rail assembly as claimed in claim 2, wherein the driving member comprises a rocker arm (10), the rocker arm (10) is rotatably connected to the seat bracket (2), the first end of the rocker arm (10) is connected to a power mechanism that drives the rocker arm to swing, and the second end of the rocker arm (10) is transmission-connected to the first rail and drives the first rail to slide relative to the base (1).

4. A seat translation drive mechanism according to claim 3, characterized in that: The power mechanism comprises a drive plate (11) rotatably arranged on a seat support (2), a diameter-changing track (111) being provided on the drive plate (11), and the second end of the rocker arm (10) moves along the diameter-changing track (111).

5. The seat translation drive mechanism according to claim 4, characterized in that: The swing rod (10) is provided with a slide groove (101) along its length direction, and a rotating member (12) adapted to its width is provided in the slide groove (101), and the rotating member (12) is rotatably mounted on the first rail.

6. The seat translation drive mechanism according to claim 5, characterized in that: A mounting seat (13) is fixed on the first rail, and the gear (3) and the rotating member (12) are both rotatably arranged on the mounting seat (13).

7. The seat translation drive mechanism according to claim 6, characterized in that: The first outer guide rail (7) and the second outer guide rail (9) are fixedly connected via the mounting seat (13).

8. The seat translation drive mechanism according to claim 7, characterized in that: The first outer guide rail (7) and the second outer guide rail (9) are arranged opposite to each other.

9. The seat translation drive mechanism according to claim 5, characterized in that: The rotating member (12) is a first bearing, the width of the slide groove (101) matches the outer diameter of the first bearing, and both ends of the slide groove (101) are provided with semicircular grooves that match the outer diameter of the first bearing.

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