A slide rail for a car seat

Abstract

The present invention discloses a slide rail for a car seat, relating to the technical field of car seat adjustment devices, comprising a slide rail, a base, a seat belt assembly mounting plate, a sliding mechanism, an adjustment mechanism, and a connector. The slide rail comprises a first slide rail and a second slide rail. The base is provided with a sliding mechanism mounted near the bottom thereof, the sliding mechanism being located on the first slide rail, the seat belt assembly mounting plate being located on the second slide rail, the base and the seat belt assembly mounting plate being fixedly connected via a connector, the connector being provided with an adjustment mechanism, and the adjustment mechanism being movably connected to the second slide rail. The present invention has a simple structure and is easy to manufacture and process. By adopting a dual slide rail design, when the car seat is subjected to a large external force, the external force can be dispersed to the first and second slide rails, thereby preventing deformation and damage to a single slide rail caused by concentrated force.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile seat adjusting devices, in particular to a slide rail of an automobile seat. Background Art

[0002] Currently, the fore-and-aft position adjustment of car seats is achieved through slide rails and adjustment assemblies. However, existing slide rails and adjustment assemblies have the following drawbacks: First, the slide rails and adjustment assemblies are complex in structure, with numerous components, requiring high machining precision, and are difficult to manufacture; second, the seat belt assembly is directly fixed to the seat frame. If subjected to large external forces (for example, in a collision), the force is concentrated on the slide rails, which can easily cause deformation and damage; third, the components are often fixed together by welding, which can easily deform during the welding and installation process, making product quality difficult to control. Summary of the Invention

[0003] The purpose of the present invention is to provide a slide rail for a car seat in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A slide rail for a car seat includes a slide rail, a base, a seat belt assembly mounting plate, a sliding mechanism, an adjustment mechanism and a connecting piece. The slide rail includes a first slide rail and a second slide rail. The base is equipped with a sliding mechanism near the bottom, the sliding mechanism is located on the first slide rail, and the seat belt assembly mounting plate is located on the second slide rail. The base and the seat belt assembly mounting plate are fixedly connected by a connecting piece. The adjusting mechanism is installed on the connecting piece, and the adjusting mechanism is movably connected to the second slide rail.

[0006] Preferably, the base is a seat frame or a base plate.

[0007] Preferably, a guide portion is provided on the side of the first slide rail close to the second slide rail, and the guide portion extends above the first slide rail; an adjustment portion is provided on the side of the second slide rail close to the first slide rail, and the adjustment portion extends above the second slide rail.

[0008] Preferably, a first bracket is provided at the bottom position of the base close to the first slide rail, and the sliding mechanism includes a sliding assembly and a guide assembly. The sliding assembly corresponds to the guide assembly, and the sliding assembly has several groups. The sliding assembly is installed at the bottom position of the first bracket, and the guide assembly is installed on the side of the first bracket. A guide assembly is installed on the base opposite to the side of the first bracket. Two oppositely arranged guide assemblies form a group, and the two oppositely arranged guide assemblies are located on both sides of the guide part.

[0009] Furthermore, the sliding assembly includes a second bracket, a roller and a rotating shaft, the roller is installed on the rotating shaft, the rotating shaft is installed on the second bracket, a first through groove is provided at the bottom of the first bracket, and a first mounting groove is processed opposite to the side of the first bracket and the side of the base, the first mounting groove corresponds to the position of the first through groove, the roller is located in the first through groove, and the rotating shaft is located in the first mounting groove.

[0010] Furthermore, the guide assembly includes a fixed frame, a fixed plate, a roller and a rotating shaft. The fixed frame cooperates with the fixed plate, and U-shaped grooves are provided at both ends of the fixed frame. A third through groove is provided on the fixed frame and the fixed plate. The roller is installed on the rotating shaft, and the rotating shaft is located in the U-shaped groove. The rotating shaft is vertically distributed, and the roller is located in the third through groove. The fixed plate is provided with spring plates near both ends of the third through groove, and the spring plates are in contact with the rotating shaft; the fixed frame and the second bracket are integrally formed.

[0011] The cam is secured to the base with a spring, and the cam is secured to the base with a spring, and the cam is secured to the base with a spring, the cam being secured to the base with a spring.

[0012] Furthermore, a slider is provided at one end of the engaging member away from the engaging portion, a first guide groove is provided at a corresponding position on the base, and the slider slides in the first guide groove; a second guide groove is provided at a position corresponding to the engaging portion on the seat belt assembly mounting plate, and the engaging portion slides in the second guide groove.

[0013] Furthermore, the slot is rectangular, the first tooth is rectangular, and the slot matches the first tooth.

[0014] Preferably, a friction block is provided at the bottom of the safety belt assembly mounting plate, and a second locking tooth is provided on the friction block.

[0015] The working principle of the present invention is that when it is necessary to adjust the front and rear position of the car seat, the adjusting rod located on the outer side of the base is pulled upward, the adjusting rod rotates around the supporting part, and the adjusting rod in contact with the engaging part squeezes the engaging part and slides downward so that the engaging groove on the engaging part is disengaged from the first engaging tooth on the adjusting part, and then the base is pulled or pushed. At this time, the roller of the sliding assembly can roll on the first slide rail, and at the same time, the roller of the guide assembly rolls along the side of the guide part to achieve the front and rear position adjustment of the base. The movement of the base simultaneously drives the safety belt assembly mounting plate to move forward and backward, so that the car seat and the safety belt assembly can achieve the effect of synchronous adjustment. During the movement of the base, the elastic sheet on the guide assembly can absorb the tolerance and prevent the guide part from deformation. When the car seat position adjustment is completed, the adjusting rod is released, and the restoring action of the spring causes the engaging part to slide upward. The engaging part slides upward so that the engaging groove on the engaging part is re-engaged with the first engaging tooth on the adjusting part, and the base and the safety belt assembly mounting plate return to the locked state, completing the position adjustment of the car seat.

[0016] The beneficial effects of the present invention are as follows: (1) the present invention consists of two major parts, a sliding mechanism and an adjusting mechanism, with a simple structure and low difficulty in production and processing; (2) a double-slide rail design is adopted, and when the car seat is subjected to a large external force impact, the external force can be dispersed to the first slide rail and the second slide rail, thereby avoiding deformation and damage of a single slide rail due to concentrated force; (3) the fixing frame and the second bracket are designed in an integrated molding manner, thereby reducing the number of parts and improving the stability of the parts; (4) the spring sheet on the guide assembly can absorb the tolerance and prevent the guide part from being deformed during the movement of the sliding assembly; (5) the card slot on the engaging part adopts a closed design, and when the car seat collides with the slide rail, the first card tooth on the adjusting part will not be separated from the card slot on the engaging part, and the stability of the adjusting assembly is high; (6) the installation of the parts adopts bolt fixing connection, which has good stability and avoids deformation of the parts caused by welding installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structural diagram of the present invention;

[0018] Figure 2 It is a structural diagram of the sliding mechanism of the present invention;

[0019] Figure 3 This is a structural diagram of the sliding mechanism of the present invention from a front perspective;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of part A in the middle;

[0021] Figure 5 This is a structural diagram of the fixing frame of the present invention from a front perspective;

[0022] Figure 6This is a structural diagram of the sliding mechanism of the present invention from a back perspective;

[0023] Figure 7 For the present invention Figure 6 Middle B is an enlarged view;

[0024] Figure 8 This is a structural diagram of the fixing frame of the present invention from a back perspective;

[0025] Figure 9 It is a side view assembly diagram of the sliding mechanism of the present invention;

[0026] Figure 10 It is a structural diagram of the regulating mechanism of the present invention;

[0027] Figure 11 An exploded view of the regulating mechanism of the present invention;

[0028] Figure 12 For the present invention Figure 11 Enlarged view of part C in the middle;

[0029] Figure 13 For the present invention Figure 11 Enlarged view of part D in the middle;

[0030] Figure 14 This is a structural diagram of the connector of the present invention;

[0031] Figure 15 This is a structural diagram of the engaging member of the present invention;

[0032] Figure 16 This is a structural diagram of the friction member of the present invention;

[0033] Figure 17 It is an assembly diagram of the adjustment mechanism of the present invention.

[0034] in:

[0035] 1. Slide rail; 11. First slide rail; 111. Guide portion; 12. Second slide rail; 121. Adjustment portion; 122. First latching tooth;

[0036] 2. Base; 21. First bracket; 211. First through slot; 212. Second through slot; 213. First mounting slot; 214. First guide slot;

[0037] 3. Safety belt assembly mounting plate; 31. Friction block; 311. Second latching tooth; 32. Second guide groove;

[0038] 4. Sliding mechanism; 41. Guide assembly; 411. Fixing bracket; 412. Fixing plate; 413. Third through slot; 414. Spring piece; 415. U-shaped slot; 42. Sliding assembly; 421. Second bracket; 422. Second mounting slot; 43. Roller; 44. Rotating shaft;

[0039] 5. Adjustment mechanism; 51. Guide rod; 52. Engaging member; 521. First slide groove; 522. Engaging portion; 523. Slot; 524. Slider; 53. Spring; 54. Adjustment rod; 541. Second slide groove; 55. Support portion;

[0040] 7. Mounting hole; 8. Connector; 81. Fixing block; 82. Groove. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings:

[0042] Example 1

[0043] like Figure 1 、 Figure 2 、 Figure 10 and Figure 17 As shown, a slide rail for a car seat includes a slide rail 1, a base 2, a seat belt assembly mounting plate 3, a sliding mechanism 4, an adjustment mechanism 5 and a connector 8. The slide rail 1 includes a first slide rail 11 and a second slide rail 12. The base 2 is provided with a sliding mechanism 4 near the bottom, and the sliding mechanism 4 is located on the first slide rail 11. The seat belt assembly mounting plate 3 is located on the second slide rail 12. The base 2 is fixedly connected to the seat belt assembly mounting plate 3 through the connector 8. The adjustment mechanism 5 is installed on the connector 8, and the adjustment mechanism 5 is movably connected to the second slide rail 12. The base 2 can be a seat frame or a base plate. In this embodiment, the base 2 is a seat frame.

[0044] like Figure 4 、 Figure 10 and Figure 17 As shown, a guide portion 111 is provided on one side of the first slide rail 11 close to the second slide rail 12, and the guide portion 111 extends above the first slide rail 11. An adjustment portion 121 is provided on one side of the second slide rail 12 close to the first slide rail 11, and the adjustment portion 121 extends above the second slide rail 12.

[0045] like Figure 1 、 Figure 4 、 Figure 13 and Figure 17 As shown, mounting holes 7 are provided on both the first rail 11 and the guide portion 111. Mounting holes 7 are also provided on the second rail 12 and the adjustment portion 121 at positions corresponding to the first rail 11 and the guide portion 111. The first and second rails 11, 12 are fixed to the vehicle body via bolts. Bolting the guide portion 111 and the adjustment portion 121 together provides good stability and prevents deformation caused by welding.

[0046] like Figure 3 、 Figure 4 、 Figure 6 and Figure 9As shown, a first bracket 21 is provided at the bottom position of the base 2 near the first slide rail 11, and the first bracket 21 is fixedly connected to the base 2 by welding. The sliding mechanism 4 includes a sliding assembly 42 and a guide assembly 41, and the sliding assembly 42 corresponds to the guide assembly 41. There are several groups of sliding assemblies 42, and the number of sliding assemblies 42 can be set as needed. In this embodiment, the number of sliding assemblies 42 is four groups. The sliding assembly 42 is installed at the bottom position of the first bracket 21. The guide assembly 41 is installed on the side of the first bracket 21, and the guide assembly 41 is installed on the base 2 opposite to the side of the first bracket 21. A second through groove 212 is processed on the first bracket 21 and the base 2, and the guide assembly 41 is installed at the position of the second through groove 212. The two oppositely arranged guide assemblies 41 are a group, and the two oppositely arranged guide assemblies 41 are located on both sides of the guide portion 111.

[0047] like Figure 4 and Figure 7 As shown, the sliding assembly 42 includes a second bracket 421, a roller 43, and a rotating shaft 44. The roller 43 is mounted on the rotating shaft 44. The second bracket 421 is machined with a second mounting groove 422, and the rotating shaft 44 is mounted within the second mounting groove 422 of the second bracket 421. A first through-slot 211 is defined at the bottom of the first bracket 21. A first mounting groove 213 is machined on the side of the first bracket 21 facing the side of the base 2, and the first mounting groove 213 corresponds to the position of the first through-slot 211. The roller 43 is located within the first through-slot 211, and the rotating shaft 44 is located within the first mounting groove 213.

[0048] like Figure 4 、 Figure 5 、 Figure 7 and Figure 8 As shown, the guide assembly 41 includes a fixed frame 411, a fixed plate 412, a roller 43 and a rotating shaft 44. The fixed frame 411 cooperates with the fixed plate 412. U-shaped grooves 415 are provided at both ends of the fixed frame 411. A third through groove 413 is provided on the fixed frame 411 and the fixed plate 412. The roller 43 is mounted on the rotating shaft 44, and the rotating shaft 44 is located in the U-shaped groove 415. The rotating shaft 44 is vertically distributed. The roller 43 is located in the third through groove 413. Spring pieces 414 are provided at both ends of the fixed plate 412 near the third through groove 413, and the spring pieces 414 are in contact with the rotating shaft 44. As shown Figure 5 and Figure 8 As shown, the fixing frame 411 and the second bracket 421 are integrally formed, which has the advantages of fewer parts and higher stability. The guide assembly 41 has a guiding function, so that the sliding assembly 42 has good stability during operation.

[0049] like Figure 10 、 Figure 11 、 Figure 12 and Figure 14 and Figure 17As shown, the connector 8 is provided with a fixing block 81 at each end. The fixing block 81 at one end of the connector 8 is fixedly connected to the seat belt assembly mounting plate 3 by bolts, and the fixing block 81 at the other end of the connector 8 is fixedly connected to the base 2 by bolts. The connector 8 causes the base 2 and the seat belt assembly mounting plate 3 to move synchronously, achieving the effect of simultaneously adjusting the position of the vehicle seat and the seat belt assembly. The fixing block 81 is provided with a groove 82. The adjustment mechanism 5 includes an adjustment rod 54, a support portion 55, a clamping member 52, a spring 53, and a guide rod 51. The guide rod 51 is mounted on the top of the connector 8. The spring 53 is mounted on the outside of the guide rod 51. The clamping member 52 and the adjustment rod 54 are sequentially mounted on the guide rod 51 above the spring 53. The clamping member 52 is located in the groove 82. The clamping member 52 is provided with a first slide groove 521, and the guide rod 51 is located in the first slide groove 521. One end of the adjustment rod 54 is slidably connected to the guide rod 51. A second slot 541 is defined at the end of the adjustment rod 54, and the guide rod 51 is positioned within the second slot 541. A support portion 55 is mounted on the base 2, away from the connector 8. The support portion 55 is rotatably connected to the adjustment rod 54, enabling the lever movement of the adjustment rod 54. The support portion 55 can be a rotating shaft, enabling the adjustment rod 54 to rotate about the shaft; alternatively, the support portion 55 can be another structure that provides a support point for the adjustment rod 54 to rotate.

[0050] like Figure 10 、 Figure 13 、 Figure 15 and Figure 17 As shown, the engaging member 52 has an engaging portion 522 at one end near the second slide rail 12. The engaging portion 522 has a slot 523 formed in a closed shape. In this embodiment, the slot 523 is rectangular, but it can also have other closed shapes, such as a circle, triangle, or diamond. The adjusting portion 121 has a first rectangular latch 122, with which the slot 523 engages. The closed shape of the slot 523 prevents the car seat from disengaging from the first latch 122 when impacted by external forces, thereby improving the stability of the car seat. The engagement or disengagement of the first latch 122 with the slot 523 allows the car seat and the seatbelt assembly to be locked or synchronized. A slider 524 is provided at the end of the engaging member 52 away from the engaging portion 522. A corresponding position on the base 2 provides a first guide groove 214, within which the slider 524 slides. The seat belt assembly mounting plate 3 is provided with a second guide groove 32 at a position corresponding to the engaging portion 522, and the engaging portion 522 slides in the second guide groove 32. The first guide groove 214 and the second guide groove 32 have a guiding function to ensure that the engaging member 52 moves up and down smoothly.

[0051] like Figure 16 and Figure 17As shown, a friction block 31 is provided at the bottom of the seat belt assembly mounting plate 3. The friction block 31 is provided with a second latch 311. The second latch 311 can contact the top of the adjustment portion 121. When the car seat is subjected to external force, the friction block 31 increases the friction between the car seat and the slide rail 1, thereby improving the stability of the car seat.

[0052] like Figure 1 、 Figure 10 、 Figure 12 、 Figure 13 、 Figure 15 and Figure 17 As shown, when the front and rear position of the car seat needs to be adjusted, the adjusting rod 54 located on the outside of the base 2 is pulled upward, and the adjusting rod 54 rotates around the support portion 55. The adjusting rod 54 in contact with the engaging member 52 squeezes the engaging member 52 and slides downward so that the slot 523 on the engaging portion 522 is disengaged from the first tooth 122 on the adjusting portion 121. Then, the base 2 is pulled or pushed. At this time, the roller 43 of the sliding assembly 42 can roll on the first slide rail 11. At the same time, the roller 43 of the guide assembly 41 rolls along the side of the guide portion 111 to achieve the front and rear position adjustment of the base 2. The base 2 moves simultaneously The seat belt assembly mounting plate 3 is driven to move forward and backward, so that the car seat and the seat belt assembly can be adjusted synchronously. During the movement of the base 2, the spring 414 on the guide assembly 41 can absorb the tolerance and prevent the guide part 111 from deformation; when the position adjustment of the car seat is completed, the adjusting rod 54 is released, and the reset action of the spring 53 causes the engaging part 52 to slide upward. The engaging part 52 slides upward so that the slot 523 on the engaging part 522 is re-engaged with the first engaging tooth 122 on the adjusting part 121, and the base 2 and the seat belt assembly mounting plate 3 return to the locked state, completing the position adjustment of the car seat.

[0053] Example 2

[0054] like Figure 1 and Figure 4 As shown, this embodiment differs from the first embodiment in that base 2 is a base plate. The base plate is welded to the first bracket 21, and bolted to the seat frame. The base plate and seat frame are detachably connected for easy maintenance. The remainder of this embodiment is identical to that of the first embodiment.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and intent of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A slide rail for a car seat, characterized in that: The cam is mounted on a first slide rail and a second slide rail, and the cam is mounted on a second slide rail, wherein the cam is mounted on a first slide rail and a second slide rail, wherein the cam is mounted on a second slide rail and the second slide rail, wherein the cam is mounted on a first slide rail and a second slide rail, wherein the cam is mounted on a second slide rail and the second slide rail, wherein the cam is mounted on a first slide rail and a second slide rail, wherein the cam is mounted on a second slide rail and the second slide rail, wherein the cam is mounted on a first slide rail and a second slide rail, wherein the cam is mounted on a A sliding assembly is installed, a guide assembly is installed on the side of the first bracket, and a guide assembly is installed on the base opposite to the side of the first bracket. Two oppositely arranged guide assemblies form a group, and two oppositely arranged guide assemblies are located on both sides of the guide part; the guide assembly includes a fixed frame, a fixed plate, a roller and a rotating shaft, the fixed frame cooperates with the fixed plate, both ends of the fixed frame are provided with a U-shaped groove, the fixed frame and the fixed plate are provided with a third through groove, the roller is installed on the rotating shaft, the rotating shaft is located in the U-shaped groove, the rotating shaft is vertically distributed, the roller is located in the third through groove, and the fixed plate is provided with spring plates near both ends of the third through groove, and the spring plates are in contact with the rotating shaft.

2. The slide rail of a car seat according to claim 1, characterized in that: The base is a seat frame or a base plate.

3. The slide rail of a car seat according to claim 2, characterized in that: A guide portion is provided on the side of the first slide rail close to the second slide rail, and the guide portion extends above the first slide rail; an adjustment portion is provided on the side of the second slide rail close to the first slide rail, and the adjustment portion extends above the second slide rail.

4. The slide rail of a car seat according to claim 1, characterized in that: The sliding assembly includes a second bracket, a roller and a rotating shaft. The roller is installed on the rotating shaft, and the rotating shaft is installed on the second bracket. A first through groove is provided at the bottom of the first bracket. The side surface of the first bracket and the side surface of the base are processed with first mounting grooves facing each other. The first mounting groove corresponds to the position of the first through groove. The roller is located in the first through groove, and the rotating shaft is located in the first mounting groove.

5. The slide rail of a car seat according to claim 1, characterized in that: The fixing frame and the second bracket are integrally formed.

6. The slide rail of a car seat according to claim 3, characterized in that: The cam is secured to the base with a spring, and the cam is secured to the base with a spring, and the cam is secured to the base with a spring, the cam being secured to the base with a spring, and the cam being secured to the base with a spring, the cam being secured to the base with a spring, and the cam being secured to the base with a spring, 7. The slide rail of a car seat according to claim 6, characterized in that: The engaging member is provided with a slider at one end away from the engaging portion, and a first guide groove is provided at a corresponding position on the base, and the slider slides in the first guide groove; the seat belt assembly mounting plate is provided with a second guide groove at a position corresponding to the engaging portion, and the engaging portion slides in the second guide groove.

8. The slide rail of a car seat according to claim 6, characterized in that: The clamping slot is rectangular, the first clamping tooth is rectangular, and the clamping slot matches the first clamping tooth.

9. The slide rail of a car seat according to claim 6, characterized in that: A friction block is provided at the bottom of the safety belt assembly mounting plate, and a second locking tooth is provided on the friction block.

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