Seat upper slide rail and seat slide rail assembly

Abstract

The present invention discloses an upper slide rail of a seat and a seat slide rail assembly, wherein the upper slide rail comprises a left component and a right component which are fixedly connected, wherein the upper edge of the right component is provided with a first flange, and the upper edge of the left component is provided with a second flange which covers the upper side of the first flange, wherein the middle portion of the first flange is recessed downward to form a first support platform, and the middle portion of the second flange is recessed downward to form a second support platform, and a transfer shaft mounting hole is provided on the second support platform, and the lower portions of the left component and the right component respectively have a left positioning plate and a right positioning plate which are arranged in a direction away from each other, and the left positioning plate and the right positioning plate form mounting cavities at positions corresponding to the transfer shaft mounting holes. The beneficial effects are as follows: the upper slide rail can be formed by a sheet metal stamping process, and has better manufacturing processability and material economy; the middle portion of the upper end of the upper slide rail has a recessed second support platform, which can provide an external mounting space for the transfer gear box, making the assembly of the slide rail assembly easier.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to an upper slide rail of a seat. Background Art

[0002] The bottom of the car seat is usually provided with a slide rail assembly, so that the driver and passengers can adjust the seat position according to their needs to obtain a more comfortable sitting posture. The slide rail assembly is generally two sets, symmetrically arranged on the vehicle body floor, and each set of slide rails consists of an upper slide rail and a lower slide rail. The upper slide rail is installed under the seat pan, and the lower slide rail is installed on the vehicle body floor. The upper slide rail slides forward and backward in the lower slide rail to achieve the front and rear adjustment of the seat.

[0003] In the early technology of seat slides, after the slides are assembled on the vehicle, the drive motor is located between the two sets of slides. The drive motor provides driving force from the inner side of the two sets of slides close to each other to the worm gear box inside the slides to control the upper slide to slide on the lower slide. Since the drive motor transmits driving force from the inner side of the slide to the gear box, after assembly, the upper and lower slide rail assemblies are exposed on the vehicle floor. For vehicles such as commercial vehicles that require a longer slide travel, the slides are exposed on the vehicle body floor, occupying the activity space of the passengers in the vehicle, and greatly affecting the interior of the vehicle, seriously reducing the high-end feel of the vehicle. In response to the technical problem of the slides being exposed on the vehicle body floor, the patent document with publication number CN111923788A discloses a slide assembly that can be hidden and installed. By inputting power into the slide assembly in a vertical manner from the upper end of the slide, the technical problem that the slides are exposed on the vehicle body floor after assembly, affecting the aesthetics of the interior, is solved.

[0004] However, in the above patent document, since the upper part of the upper slide rail is in a sheet-like structure and the lower part is in a block-like structure, the manufacturing processability and material economy of the upper slide rail are poor, and its structural form urgently needs to be further optimized. Summary of the invention

[0005] In view of this, the present invention provides a seat upper slide rail to solve the above problems existing in the existing upper slide rail.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A seat upper slide rail, the key of which is: it includes a left component and a right component that are fixedly connected, the left component and the right component are both constructed into a strip structure, the upper end edge of the right component is provided with a first flange, and the upper end edge of the left component is provided with a second flange covering the upper side of the first flange, wherein the middle part of the first flange is recessed downward to form a first support platform, and the middle part of the second flange is recessed downward to form a second support platform, and the second support platform is provided with a rotating shaft mounting hole, and the lower parts of the left and right components are respectively provided with a left positioning plate and a right positioning plate extending outward and downward, and the left positioning plate and the right positioning plate are formed with mounting cavities at the positions corresponding to the rotating shaft mounting holes.

[0008] With the above structure, the upper slide rail is formed by assembling a left component and a right component, and the left component and the right component are in a strip shape. When manufacturing the upper slide rail, both the left component and the right component can be formed by a sheet metal stamping process, so that the upper slide rail has better manufacturing processability and material economy. At the same time, the middle part of the upper end of the upper slide rail has a concave second support platform, which can provide an external installation space for the transfer gear box, thereby improving the feasibility of assembling the slide rail assembly.

[0009] Preferably, the middle parts of the left and right components are provided with a left connecting plate and a right connecting plate, respectively, and the left and right connecting plates are provided with inwardly formed bosses. The above structure is adopted so that the left and right components can be welded and fixed into one body through the bosses close to each other.

[0010] As a preferred embodiment, a riveting hole is provided on the boss. With the above structure, welding is performed first and then riveting is performed, which can further improve the connection strength between the left component and the right component.

[0011] Preferably, the first flange and the second flange are both in an arc-shaped structure, and the outer end of the second support platform has a widened portion extending outward. With the above structure, the arc-shaped flange structure can ensure that the upper slide rail has a high structural strength, and the widened portion is conducive to setting the central shaft mounting hole on the second support platform.

[0012] Preferably, a rotating shaft positioning component is provided on the rotating shaft installation hole, and the rotating shaft positioning component has a positioning sleeve extending downward, and fixing plates formed on both sides of the upper end of the positioning sleeve, and the lower sides of the fixing plates are provided with a latching tongue that is engaged with the lower edge of the rotating shaft installation hole. The first support platform is provided with an avoidance notch at the position corresponding to the positioning sleeve. The above structure is adopted to facilitate the installation of the rotating shaft when assembling the slide rail assembly.

[0013] Preferably, a support component is provided in the installation cavity, the support component includes a support plate and support sheets extending upward from the front and rear ends of the support plate, the end of the support sheet is provided with a support ear, the support ear is fixedly connected to the side wall of the installation cavity, and the support sheet is provided with a through hole for avoiding the screw rod. The above structure is adopted to facilitate the installation of the lower gear box when assembling the slide rail assembly.

[0014] As a preferred embodiment, the left component and the right component are both formed by stamping process. With the above structure, the manufacturing processability and material economy are better.

[0015] The present invention also provides a seat slide rail assembly, which mainly comprises:

[0016] Two sets of lower slide rails;

[0017] Two sets of upper slide rails, the upper slide rails are slidably connected with corresponding lower slide rails;

[0018] A transfer gearbox and a lower gearbox, wherein the transfer gearbox is fixed on the second support platform, and the lower gearbox is fixed in the mounting cavity;

[0019] The intermediate shaft is sleeved in the intermediate shaft mounting hole and is used to connect the power between the intermediate gear box and the lower gear box;

[0020] A lead screw is fixed in the lower slide rail and is threadedly sleeved with the worm wheel in the lower gear box; and a power source is arranged between the two sets of upper slide rails and is used to drive the transfer gear box to work.

[0021] The use of the seat slide rail assembly has the technical advantages of convenient assembly of various components, better manufacturing processability of the upper slide rail and better material economy.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The upper slide rail can be formed by sheet metal stamping process, which has better manufacturing processability and material economy than the existing upper slide rail.

[0024] 2. The upper structure of the upper slide rail adopts a flanged form with an arc structure, which can ensure that the upper slide rail has better structural strength.

[0025] 3. A concave second support platform is provided in the middle of the upper end of the upper slide rail, which can provide an external installation space for the transfer gear box and make the assembly of the slide rail assembly easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of the upper slide rail;

[0027] Figure 2 Schematic diagram of the exploded structure of the upper slide rail;

[0028] Figure 3 It is a structural schematic diagram of a positioning sleeve;

[0029] Figure 4 It is the structural schematic diagram of the left component;

[0030] Figure 5For the right component love you structural diagram;

[0031] Figure 6 It is a structural schematic diagram of a seat slide rail assembly;

[0032] Figure 7 It is a cross-sectional view of the seat slide rail assembly. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with embodiments and drawings.

[0034] like Figure 6 and 7 As shown, a seat slide rail assembly involves the following main components: two sets of upper slide rails A, two sets of lower slide rails B, a transfer gear box C, a lower gear box D, an intermediate shaft E, a screw rod F, a power source G, and a horizontal rotating shaft H. In this embodiment, the power source G is a dual-output motor, and the two ends of the dual-output motor are connected to the horizontal rotating shaft H, which is also connected to the transfer gear box C. The transfer gear box C and the lower gear box D are respectively assembled on the upper end and the inside of the upper slide rail A, and the transfer gear box C and the lower gear box D are connected via the intermediate shaft E. The screw rod F is fixedly installed along the length direction of the lower slide rail B, and the screw rod F is threadedly sleeved with the worm wheel in the lower gear box D, and the upper slide rail A and the lower slide rail B are slidably matched.

[0035] When the slide rail assembly is used on a car seat, the lower slide rail B can be completely installed under the bottom plate of the car body. The dual-output motors simultaneously drive the horizontal shafts H at both ends to rotate. The rotational force of the horizontal shaft H is transmitted to the lower gear box D through the transfer gear box C and the intermediate shaft E. Then, the upper slide rail A can be driven to slide back and forth in the lower slide rail B under the threaded cooperation of the worm wheel and the lead screw F in the lower gear box D.

[0036] like Figure 1 , 2 As shown in Figures 4 and 5, in order to be able to install the transit gear box C on the outside of the upper slide rail A to improve the efficiency of the seat slide rail assembly assembly, the upper slide rail A provided in this embodiment is composed of a left component 1 and a right component 2, both of which are strip structures, and the upper end edge of the right component 2 is provided with a first flange 2a, and the upper end edge of the left component 1 is provided with a second flange 1a covering the upper side of the first flange 2a, and the middle portion of the first flange 2a is recessed downward to form a first support platform 2b, and the middle portion of the second flange 1a is recessed downward to form a second support platform 1b, and the second support platform 1b covers the first support platform 2b, and the recessed structure here is used to assemble the transit gear box C, and the connection methods of the transit gear box C here include but are not limited to welding, bolt connection and the like.

[0037] A central shaft mounting hole 1c is provided on the second support platform 1b, and a rotating shaft positioning component 3 is mounted on the central shaft mounting hole 1c. The rotating shaft positioning component 3 has a positioning sleeve 3a extending downward, and fixing plates 3b formed on both sides of the upper end of the positioning sleeve 3a. The lower side of the fixing plate 3b is provided with a latch 3c that is engaged with the lower end edge of the central shaft mounting hole 1c. When assembling the seat slide rail assembly, the rotating shaft positioning component 3 is first buckled into the central shaft mounting hole 1c, and then the central shaft E is installed in the positioning sleeve 3a. The assembly is quite convenient.

[0038] like Figure 2 , 4 As shown, in order to ensure the structural strength of the upper slide rail A, the first flange 2a and the second flange 1a are both in arc-shaped structure, that is, the upper end of the upper slide rail A is in an arc-shaped structure. In order to be able to set the central shaft mounting hole 1c on the second support platform 1b, the outer end of the second support platform 1b has a widened portion 1f extending outward.

[0039] like Figure 5 As shown, during product assembly, in order to prevent the first support platform 2b from interfering with the positioning sleeve 3a of the shaft positioning component 3, an avoidance notch 2c is provided at a position corresponding to the positioning sleeve 3a.

[0040] For example Figure 1 and 2 As shown, in order to facilitate the assembly of the lower gear box D, the lower parts of the left component 1 and the right component 2 respectively have a left positioning plate 1d and a right positioning plate 2d arranged in a direction away from each other, and the middle parts of the left positioning plate 1d and the right positioning plate 2d form an installation cavity a, which is located below the rotating shaft installation hole 1c. A support component 4 is provided in the installation cavity a, and the support component 4 includes a support plate 4a and a support sheet 4b extending upward from the front and rear ends of the support plate 4a, and a support ear 4c is provided at the end of the support sheet 4b. The lower gear box D is installed in the space surrounded by the support plate 4a and the support sheet 4b, and then the lower gear box D and the support component 4 are placed in the installation cavity a as a whole, and finally the support ear 4c is locked to the inner side wall of the left positioning plate 1d by the screw e, and the lower gear box D can be assembled inside the upper slide rail A.

[0041] Since the upper slide rail A provided in this embodiment is composed of two parts, the left component 1 and the right component 2, both the left component 1 and the right component 2 can be integrally formed by a sheet metal stamping process, which has better manufacturing processability and material economy than the existing upper slide rail manufacturing process. After the left component 1 and the right component 2 are stamped, their middle parts have a left connecting plate 1e and a right connecting plate 2e, respectively. The left connecting plate 1e and the right connecting plate 2e are both provided with inwardly formed bosses c, and the left component 1 and the right component 2 can be welded and fixed as one through the bosses c that are close to each other. In order to further ensure the connection strength of the left component 1 and the right component 2, a rivet hole b is provided on the boss c. After the left component 1 and the right component 2 are welded and fixed as one, the rivet f can be further used to strengthen the connection between the two.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A seat upper slide rail (A), characterized in that: The invention comprises a left component (1) and a right component (2) which are fixedly connected, wherein the left component (1) and the right component (2) are both constructed into a strip structure, the upper edge of the right component (2) is provided with a first flange (2a), and the upper edge of the left component (1) is provided with a second flange (1a) covering the upper side of the first flange (2a), wherein the middle part of the first flange (2a) is recessed downward to form a first support platform (2b), and the middle part of the second flange (1a) is recessed downward to form a second support platform (1b), and the second support platform (1b) is provided with a central rotating shaft mounting hole (1c), and the lower parts of the left component (1) and the right component (2) are respectively provided with a left positioning plate (1d) and a right positioning plate (2d) extending outward and downward, and the left positioning plate (1d) and the right positioning plate (2d) are provided with mounting cavities (a) at positions corresponding to the central rotating shaft mounting hole (1c).

2. The seat upper slide rail according to claim 1, characterized in that: The left component (1) and the right component (2) are provided with a left connecting plate (1e) and a right connecting plate (2e) in the middle thereof, respectively. The left connecting plate (1e) and the right connecting plate (2e) are both provided with inwardly formed bosses (c).

3. The upper slide rail of the seat according to claim 2, characterized in that: The boss (c) is provided with a riveting hole (b).

4. The upper slide rail of the seat according to claim 1, characterized in that: The first flange (2a) and the second flange (1a) are both in an arc-shaped structure, and the outer end of the second support platform (1b) has a widened portion (1f) extending outwards.

5. The upper slide rail of the seat according to claim 1, characterized in that: The central rotating shaft mounting hole (1c) is provided with a rotating shaft positioning component (3), the rotating shaft positioning component (3) comprising a positioning sleeve (3a) extending downwardly, and fixing plates (3b) formed on both sides of the upper end of the positioning sleeve (3a), and the lower side of the fixing plate (3b) is provided with a latch tongue (3c) that is engaged with the lower end edge of the central rotating shaft mounting hole (1c).

6. The upper slide rail of the seat according to claim 5, characterized in that: The first support platform (2b) is provided with an avoidance notch (2c) at a position corresponding to the positioning sleeve (3a).

7. The upper slide rail of the seat according to claim 1, characterized in that: A support component (4) is provided in the installation cavity (a), and the support component (4) comprises a support plate (4a) and a support sheet (4b) extending upward from the front and rear ends of the support plate (4a), and a support ear (4c) is provided at the end of the support sheet (4b), and the support ear (4c) is fixedly connected to the side wall of the installation cavity (a), and a through hole (4d) for avoiding the screw rod is provided on the support sheet (4b).

8. The upper slide rail of the seat according to claim 1, characterized in that: The left component (1) and the right component (2) are both formed by a stamping process.

9. A seat slide rail assembly, characterized in that: include: Two sets of lower slide rails (B); Two sets of upper slide rails (A) according to any one of claims 1 to 8, wherein the upper slide rails (A) are slidably connected to the corresponding lower slide rails (B); A transfer gearbox (C) and a lower gearbox (D), wherein the transfer gearbox (C) is fixed on the second support platform (1b), and the lower gearbox (D) is fixed in the installation cavity (a); The intermediate shaft (E) is sleeved in the intermediate shaft mounting hole (1c) and is used to connect the power between the intermediate gear box (C) and the lower gear box (D); a lead screw (F) fixed in the lower guide rail (B) and threadedly connected to the worm gear in the lower gear box (D); and The power source (G) disposed between the two sets of upper slide rails (A) is used to drive the transfer gear box (C) to work.

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