Curtain handle sliding block structure of automobile awning system

Abstract

The invention discloses a curtain handle sliding block structure of an automobile backdrop system, and belongs to the technical field of automobile backdrops. The device comprises a sliding block and an inhaul cable connected with the sliding block, the sliding block is slidably embedded in a sliding rail of a sky screen system, the outer side of the sliding block is connected with a handle of a curtain, the inhaul cable comprises a front-section inhaul cable and a rear-section inhaul cable, the free end of the front-section inhaul cable and the free end of the rear-section inhaul cable are connected with the sliding block, and the front-section inhaul cable and the rear-section inhaul cable are connected with the sliding block. The curtain further comprises a brake pad arranged on the sliding block, and the brake pad is used for increasing the friction force of the sliding block when the curtain is stored. The brake pad is arranged on the sliding block through a rotating shaft, and the upper force arm of the brake pad is smaller than the lower force arm of the brake pad. The sliding block is simple in structure, the structure of the brake pad is additionally arranged on the sliding block, the friction force of the sliding block in the operation process of the sunshade curtain from an unfolded state to a rolled state is increased, and the sliding block is used for overcoming the pulling force provided by the rewinding shaft, so that the problem of negative load is solved, operation noise is reduced, the stability of a curtain system is improved, and the service life of the curtain system is prolonged.

Description

Technical Field

[0001] This invention relates to a slider structure for the handle of a car sunroof system, belonging to the field of car sunroof technology. Background Technology

[0002] Most mid-to-high-end cars are now equipped with panoramic sunroof systems. Below the panoramic sunroof glass, there is usually an operable sunshade. When the sunshade is open, the visible area of ​​the glass is larger than that of the sunroof itself, giving it a more premium feel. One type of sunshade requires steel cables for tension and operation. In simple terms, its principle is as follows... Figure 11 As shown, the winch and motor 11 in the figure can rotate clockwise or counterclockwise, driving the steel wire cable 12 to rotate. The fixed pulley 13 provides a limit to the steel wire cable 12 and reduces friction. The slider 6 is fixed to the steel wire cable 12. When the motor rotates, the slider 6 can follow the steel wire cable 12 forward or backward between the winch and the fixed pulley. Since the slider 6 is also fixed to the curtain 16, it drives the curtain 16 to open or close. This steel wire cable structure has the following characteristics: the forward and backward movement of the slider requires the tension of the steel wire cable. Figure 12 As shown, slider 6 pulls curtain 16 via handle 15. A rewind system 14 is located at the end of the curtain to keep it taut when unfolded; the tension comes from a spring in the rewind system 14. When the curtain is rolled up and stationary, as shown... Figure 11 As shown, the elastic potential energy of the rewind shaft in the rewind system is small, and the handle 15 and slider 6 will experience a relatively small rewind force, which is generally offset by the friction of the curtain system. When the curtain is in the unfolded state and stationary, as... Figure 12 As shown, the rewind shaft has a large elastic potential energy, and the handle 15 and slider 6 will be subjected to a large rewind force. At this time, the rewind force cannot be offset by the system friction force, and the motor is needed to offset the rewind force.

[0003] When the system starts retracting from the curtain unfolding state, that is, from... Figure 12 state to Figure 11 When the machine is in operation, the motor starts rotating clockwise, driving the steel cable and causing the slider to experience a retraction force Fm. Simultaneously, the handle receives a pulling force Fs from the rewinding shaft, which is transmitted to the slider. Since Fs is much greater than Fm, the slider's retraction speed exceeds the linear velocity supplied to the winch by the motor during clockwise rotation. This causes the slider to drive the motor to rotate via the steel cable, generating noise. This phenomenon is called "overload," and the noise affects the user experience and may also cause potential damage to the mechanical structure, shortening the equipment's lifespan. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a slider structure for the handle of a car sunroof system.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a slider structure for a car sunroof system curtain handle, including a slider and a cable connected to the slider. The slider is slidably embedded in the slide rail of the sunroof system. The outer side of the slider is connected to the handle of the curtain. The cable includes a front cable and a rear cable. The free ends of the front cable and the rear cable are respectively connected to the slider. The invention also includes a brake pad disposed on the slider. The brake pad is used to increase the friction of the slider when the curtain is retracted. The brake pad is mounted on the slider via a rotating shaft, and the upper lever arm of the brake pad is shorter than its lower lever arm.

[0006] The beneficial effects of this invention are as follows: When the curtain is retracted, the rear cable pulls the slider backward, and the combined torque generated by the friction between the brake pad and the upper and lower sliding surfaces rotates clockwise around the pivot point, resulting in a locked state. When the curtain is unfolded, the front cable pulls the slider forward, and the combined torque generated by the friction between the brake pad and the upper and lower sliding surfaces rotates counterclockwise around the pivot point, resulting in a relaxed state. When the curtain is unfolded, the slider can move forward under the action of the front cable; when the curtain is retracted, the slider can retract under the action of the rear cable. When the slider moves forward, the brake pad rotates counterclockwise; when the slider retracts, the brake pad rotates clockwise. By utilizing the characteristic that the brake pad provides different frictional forces at different angles due to the different interference amounts with the slide rail, it is ensured that the additional frictional force generated by the brake pad needs to be overcome when the slider retracts, thus forming damping and solving the problem of "negative load". This invention has a simple structure. By adding a brake pad to the slider, the friction of the slider during the operation of the sunshade curtain from the unfolded state to the retracted state is increased. This is used to overcome the tension provided by the rewind shaft, thereby solving the "negative load" problem, reducing operating noise, and improving the stability and service life of the curtain system.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the brake pad includes an upper contact portion and a lower contact portion, the upper contact portion being able to contact the upper sliding surface of the slide rail, and the lower contact portion being able to contact the lower sliding surface of the slide rail.

[0009] The beneficial effect of adopting the above-mentioned further solution is that when the brake pad rotates clockwise, the vertical distance between the upper contact part and the lower contact part increases, and its friction in the slide rail increases. The upper and lower contact parts interfere with the upper and lower sliding surfaces of the slide rail, respectively. The brake pad will provide a larger friction force to the slider, which can effectively solve the problem of "negative load" of the curtain system. When the brake pad rotates counterclockwise, the vertical distance between the upper and lower contact parts decreases, and its friction in the slide rail decreases. It may even not interfere with the upper and lower sliding surfaces of the slide rail. The brake pad will not provide additional friction force to the slider.

[0010] Furthermore, the line connecting the upper contact portion and the lower contact portion is inclined, with the upper contact portion near the front end of the slide rail and the lower contact portion near the rear end of the slide rail.

[0011] The beneficial effect of adopting the above-mentioned further solution is that when the curtain is unfolded, the slider moves forward under the action of the front cable, and the brake pad can rotate counterclockwise to make it slide; when the curtain is retracted, the slider can move backward under the action of the rear cable, and the brake pad can rotate clockwise to make it brake. The brake pad can provide additional friction to the slider, which can effectively solve the "negative load" problem.

[0012] Furthermore, the brake pad also includes a spring sheet, which is disposed on the rear side of the brake pad, and the slider is provided with a limiting part that acts on the spring sheet.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the brake pad rotates counterclockwise to enter a sliding state, without providing additional friction to the slider, while the brake pad rotates clockwise to enter a braking state, providing additional friction to the slider. However, due to manufacturing tolerance issues, relying solely on the friction between the brake pad and the slide rail to drive the brake pad rotation cannot guarantee that the brake pad can return to the braking state when the system switches between forward and backward displacement directions. Therefore, a spring is set on the brake pad. When the front cable is tensioned, it pulls the slider forward. At this time, the front cable is taut. Because the force generated by the taut front cable is large, the brake pad will be driven to rotate counterclockwise by the taut force of the front cable, entering a sliding state. At this time, there will be interference between the spring of the brake pad and the slider, and the spring will bend under pressure when the brake pad rotates counterclockwise. When the rear cable is tensioned, it pulls the slider backward. At this time, the front cable is not under tension and is in a slack state. Therefore, the brake pads are not subjected to the tension of the front cable. At this time, the small springs in the rear area of ​​the brake pads will rebound and cause the brake pads to rotate clockwise through the lever arm, so that the brake pads return to the braking state.

[0014] Furthermore, the brake pad is provided with a through groove for the front cable to pass through.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the free end of the front cable can pass through the through groove and be connected to the slider through the front rivet head. When the front cable is under tension and is in a taut state, the force generated by the taut front cable is large and can act on the brake pad through the through groove, which facilitates the counterclockwise rotation of the brake pad and makes it in a sliding state.

[0016] Furthermore, the through groove has a U-shaped structure.

[0017] The advantage of adopting the above-mentioned further solution is that the U-shaped through groove makes it easier for the front cable to pass through the brake pad and connect to the slider.

[0018] Furthermore, the front side of the bottom of the through groove has a planar structure.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the front cable is pulled forward by the tension, and the front cable is in a taut state in the through groove. The front cable can act on the front side of the bottom of the through groove. Since the force generated by the taut front cable is very large, the brake pad will easily rotate counterclockwise under the cooperation of the taut force of the front cable and its lever arm, so that it is in a sliding state and does not provide additional friction to the slider.

[0020] Furthermore, the slider is provided with a hollow column structure, and a tension spring is provided inside the hollow column structure. The free end of the rear cable passes through the tension spring and is connected to the rear rivet head. The rear rivet head can compress the tension spring and slide inside the hollow column structure.

[0021] The beneficial effects of adopting the above-mentioned further solution are that when the rear cable pulls the slider, the elastic action of the tension spring achieves buffering and stable connection of the rear rivet head, thereby effectively reducing the impact force and vibration generated by the rear cable during operation and improving the operational stability of the curtain system. In addition, the hollow column structure can also constrain the tension spring, effectively preventing the tension spring from shifting or twisting within the hollow column structure, thereby ensuring the smoothness and reliability of the movement of the rear rivet head.

[0022] Furthermore, the hollow column structure is provided with a step for positioning the tension spring, and the tension spring is located between the step and the rear rivet head.

[0023] The beneficial effect of adopting the above-mentioned further solution is that one end of the tension spring is pressed against the step, and the rivet head acts on the other end of the tension spring. When the rear cable is stretched, the rivet head is resisted by the tension spring force, so the rear cable can drive the slider to move backward, thereby realizing the retraction of the slider.

[0024] Furthermore, the slider is provided with a sliding shoe, which slides in cooperation with the slide rail.

[0025] The beneficial effects of adopting the above-mentioned further solution are that the sliding shoe effectively improves the sliding stability of the slider on the slide rail, reduces frictional resistance, and thus ensures smoother operation of the curtain handle. The tight fit between the sliding shoe and the slide rail can also prevent shaking or displacement caused by external forces, improving the reliability of the entire system. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the split structure of the present invention; Figure 2 This is a structural schematic diagram of the assembly state of the present invention; Figure 3 This is a structural schematic diagram of the slider angle of the present invention; Figure 4 This is a schematic diagram of the second angle of the slider of the present invention; Figure 5 This is a structural schematic diagram of the cable, slider, and slipper in the engagement state of the present invention; Figure 6 This is a schematic diagram of the slider and brake pad structure within the slide rail of the present invention; Figure 7 This is a schematic diagram of the brake pad's engagement with the slide rail during retraction, according to the present invention. Figure 8 This is a schematic diagram of the brake pad's engagement with the slide rail during forward movement, according to the present invention. Figure 9 This is a schematic diagram of the structure of the front cable in the pulled state of the present invention; Figure 10 This is a structural schematic diagram of the rear cable in the pulled state of the present invention; Figure 11 A simplified schematic diagram of the screen in its stowed state; Figure 12 A simplified schematic diagram of the curtain in its unfolded state; In the diagram, 1. Slide rail; 2. Slipper; 3. Front cable; 4. Rear cable; 5. Tension spring; 6. Slider; 61. Receiving hole; 62. Hollow column structure; 63. Step; 64. Limiting part; 7. Brake pad; 71. Upper contact part; 72. Lower contact part; 73. Through groove; 74. Spring piece; 8. Front pull rivet head; 9. Rear pull rivet head; 10. Rotating shaft; 11. Winch and motor; 12. Steel wire cable; 13. Fixed pulley; 14. Rewinding shaft system; 15. Handle; 16. Curtain. Detailed Implementation

[0027] The principles and features of the present invention are described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0028] like Figures 1-10As shown, a slider structure for a car sunroof system includes a slider 6 and a cable connected to the slider 6. The slider 6 is slidably embedded in the slide rail 1 of the sunroof system. The outer side of the slider 6 is connected to the handle of the screen 16. The cable includes a front cable 3 and a rear cable 4. The free ends of the front cable 3 and the rear cable 4 are respectively connected to the slider 6. The system also includes a brake pad 7 disposed on the slider 6. The brake pad 7 is used to increase the friction between the slider 6 and the slide rail 1 when the screen is retracted. The brake pad 7 is mounted on the slider 6 via a rotating shaft 10, and the upper lever arm of the brake pad 7 is smaller than its lower lever arm. When the curtain 16 is retracted, the rear cable 4 pulls the slider 6 backward, and the combined torque generated by the friction between the brake pad 7 and the upper and lower sliding surfaces rotates clockwise around the pivot point, thus locking the curtain. When the curtain 16 is unfolded, the front cable 3 pulls the slider 6 forward, and the combined torque generated by the friction between the brake pad 7 and the upper and lower sliding surfaces rotates counterclockwise around the pivot point, thus releasing the brake.

[0029] The brake pad 7 includes an upper contact portion 71 and a lower contact portion 72. The upper contact portion 71 can contact the upper sliding surface of the slide rail 1, and the lower contact portion 72 can contact the lower sliding surface of the slide rail 1. When the brake pad 7 rotates clockwise, the vertical distance between the upper contact portion 71 and the lower contact portion 72 increases, and its friction in the slide rail 1 increases. The upper and lower contact portions interfere with the upper and lower sliding surfaces of the slide rail, respectively. The brake pad provides a large friction force to the slider, which can effectively solve the problem of "negative load" of the curtain system. When the brake pad rotates counterclockwise, the vertical distance between the upper and lower contact portions decreases, and its friction in the slide rail decreases, or even does not interfere with the upper and lower sliding surfaces of the slide rail. The brake pad does not provide additional friction force to the slider.

[0030] The line connecting the upper contact portion 71 and the lower contact portion 72 is inclined, with the upper contact portion 71 near the front end of the slide rail 1 and the lower contact portion 72 near the rear end of the slide rail 1. When the curtain is unfolded, the slider moves forward under the action of the front cable, and the brake pad can rotate counterclockwise to make it slide; when the curtain is retracted, the slider can retract under the action of the rear cable, and the brake pad can rotate clockwise. The brake pad can provide additional friction to the slider, which can effectively solve the "negative load" problem.

[0031] The brake pad 7 also includes a spring 74, which is disposed on the rear side of the brake pad. The slider 6 has a limiting part 64 acting on the spring 74. When the brake pad 7 rotates counterclockwise to a sliding state, it does not provide additional friction to the slider 6. When it rotates clockwise, it provides additional friction to the slider 6. However, due to manufacturing tolerances and other issues, relying solely on the friction between the brake pad 7 and the slide rail 1 to drive the brake pad 7 to rotate cannot guarantee that the brake pad 7 can return to the braking state when the system switches its forward and backward displacement directions. Therefore, a spring 74 is provided on the brake pad 7. When the front cable 3 is pulled by tension, it pulls the slider 6 forward. At this time, the front cable 3 is taut under tension. The front area of ​​the groove bottom of the through groove 73 in the brake pad 7 contacts the front cable 3. Because the force generated by the taut front cable 3 is large, the brake pad 7 will be driven to rotate counterclockwise by the taut force of the front cable 3, thus putting it into a sliding state. At this point, the spring 74 of the brake pad 7 will interfere with the slider 6. When the brake pad 7 rotates counterclockwise to put it into a sliding state, the spring 74 will bend under pressure. The rear cable 4 is pulled by tension to pull the slider 6 backward. At this time, the front cable 3 is not under force and is in a slack state. Therefore, the front area of ​​the groove bottom of the brake pad 7 will not be subjected to the tension of the front cable 3. At this time, the small spring 74 in the rear area of ​​the brake pad 7 will rebound and cause the brake pad 7 to rotate clockwise through the lever arm, so that the brake pad 7 returns to the braking state.

[0032] The brake pad 7 has a through groove 73 through which the front cable 3 passes. The free end of the front cable 3 can pass through the through groove 73 and connect to the slider 6 via the front rivet head 8. When the front cable 3 is under tension and in a taut state, the force generated by the taut front cable 3 is large and can act on the brake pad 7 through the through groove 73, facilitating the counterclockwise rotation of the brake pad 7 and putting it into a sliding state. The connection between the front cable 3 and the slider 6 via the front rivet head 8 can effectively enhance the connection stability between the front cable 3 and the slider 6, making the connection convenient and maintenance easy.

[0033] The through groove 73 has a U-shaped structure. The U-shaped through groove makes it easier for the front cable to pass through the brake pad and connect to the slider.

[0034] The slider 6 is provided with a receiving hole 61 for mounting the brake pad. This allows the brake pad 7 to be mounted in the slider 6 via a rotating shaft. The receiving hole 61 is through the slider, facilitating the contact and engagement of the upper contact portion 71 and the lower contact portion 72 of the brake pad 7 with the upper and lower sliding surfaces of the slide rail 1.

[0035] The front cable 3 and the rear cable 4 can be two separate cables, which are independent of each other.

[0036] A gap is provided between the spring plate 74 and the brake pad. The spring plate 74 can provide elastic support by cooperating with the limiting part 64 of the slider 6 when the brake pad 7 rotates, ensuring that it maintains stable bending and rebound performance under different conditions. The existence of the gap provides sufficient elastic deformation space for the spring plate 74, allowing it to bend and rebound more flexibly when subjected to force.

[0037] The limiting part 64 has an inverted L-shaped cross-section. When the brake pad 7 rotates counterclockwise, the horizontal part of the inverted L-shaped limiting part 64 can act on the upper part of the spring 74, and its vertical part can act on the lower part of the spring 74, which can effectively limit the position of the spring 74, thereby limiting the position of the brake pad 7, enhancing the fit accuracy between the slider 6 and the brake pad 7. When the brake pad 7 rotates counterclockwise, it will not provide additional friction to the slider 6, making the entire system more stable during operation.

[0038] The front side of the bottom of the through groove 73 is a planar structure. When the front cable 3 is pulled by tension, the slider 6 slides forward. At this time, the front cable is taut in the through groove 73. Because the force generated by the taut front cable is large, the brake pad 7 is facilitated to rotate counterclockwise by the taut force of the front cable and its lever arm, so that it is in a sliding state and does not provide additional friction to the slider 6.

[0039] The slider 6 is equipped with a hollow column structure 62, within which a tension spring 5 is installed. The free end of the rear cable 4 passes through the tension spring 5 and connects to the rear rivet head 9. The rear rivet head 9 can compress the tension spring 5 to slide within the hollow column structure 62. When the rear cable 4 pulls the slider 6, the elasticity of the tension spring 5 achieves buffering and stable connection of the rear rivet head 9, effectively reducing the impact and vibration generated by the rear cable 4 during operation and improving the operational stability of the curtain system. In addition, the hollow column structure 62 can also constrain the tension spring 5, effectively preventing the tension spring 5 from shifting or twisting within the hollow column structure 62, thereby ensuring the smoothness and reliability of the movement of the rear rivet head 9.

[0040] The hollow column structure 62 has a step 63 for positioning the tension spring 5, and the tension spring 5 is located between the step 63 and the rear rivet head 9. One end of the tension spring 5 rests against the step 63, and the rear rivet head 9 acts on the other end of the tension spring 5. When the rear cable 4 is stretched, the rear rivet head 9 is resisted by the tension spring 5, so the rear cable 4 can drive the slider 6 to move backward, thereby realizing the retraction of the slider 6.

[0041] The slider 6 is equipped with a sliding shoe 2, which slides in conjunction with the slide rail 1. The sliding shoe 2 effectively improves the sliding stability of the slider 6 on the slide rail 1, reduces frictional resistance, and thus ensures smoother operation of the curtain handle. The tight fit between the sliding shoe 2 and the slide rail 1 also prevents shaking or displacement caused by external forces, improving the reliability of the entire system. The sliding shoe 2 is also in a clearance fit with the slide rail 1, allowing it to slide freely within the slide rail 1, while the slider 6 does not directly contact the slide rail 1. Figure 6 The cross-section of slider 6 is shown. Brake pad 7 is mounted in receiving hole 61 of slider 6 via rotating shaft 10. Brake pad 7 can rotate 15-25 degrees within slider 6. As described, brake pad 7 can rotate 20 degrees. The upper contact portion 71 at the top and the lower contact portion 72 at the bottom of brake pad 7 can maintain contact with the upper and lower sliding surfaces of slide rail 1.

[0042] Figure 7 The diagram illustrates the interaction between brake pad 7 and slide rail 1 in one state. In this state, slider 6 is pulled forward (to the left of the diagram) by the tension provided by the front cable 3. Since the surfaces of the upper contact portion 71 and the lower contact portion 72 of brake pad 7 are in contact with the sliding surface of slide rail 1, both surfaces experience frictional forces F1 and F2 acting in the opposite direction of motion, with F1 = F2. The lever arm corresponding to F1 is L1, and the lever arm corresponding to F2 is L2, where L1 is less than L2 (e.g., L1 = 2.5 mm, L2 = 5 mm). The torque generated by F1 * L1 causes brake pad 7 to rotate clockwise; the torque generated by F2 * L2 causes brake pad 7 to rotate counterclockwise. Because L1 is less than L2, the torque causing brake pad 7 to rotate clockwise is less than the torque causing it to rotate counterclockwise. Therefore, when slider 6 moves forward, brake pad 7 will rotate counterclockwise. At this time, brake pad 7 does not interfere with slide rail 1, and brake pad 7 does not provide much friction to slider 6.

[0043] Figure 8 This demonstrates another state of interaction between brake pad 7 and slide rail 1. Slider 6 is pulled backward (to the right) by the tension of the rear cable 4, and at this time, the direction of the frictional force on brake pad 7 is perpendicular to... Figure 6 On the contrary, the torque that causes brake pad 7 to rotate clockwise is greater than the torque that causes it to rotate counterclockwise. Therefore, when slider 6 moves forward, brake pad 7 will rotate clockwise. At this time, brake pad 7 has greater interference with slide rail 1, and brake pad 7 will provide greater friction to slider 6. The friction provided by brake pad 7 can effectively solve the "negative load" problem.

[0044] From the above Figure 6 and Figure 7It is known that when brake pad 7 rotates counterclockwise, it does not provide additional friction to slider 6, while when brake pad 7 rotates clockwise, it does provide additional friction to slider 6. However, due to manufacturing tolerances and other issues, relying solely on the friction between brake pad 7 and slide rail 1 to drive brake pad 7 to rotate cannot guarantee that brake pad 7 will return to its braking state when the system switches between forward and backward displacement directions. Therefore, Figure 9 As shown, the front cable 3 is pulled by tension, causing the slider 6 to slide forward. At this time, the front cable 3 is taut, and the front area of ​​the groove bottom 73 of the brake pad 7 is in contact with the front cable 3. Due to the large force generated by the taut front cable 3, the brake pad 7 will be rotated counterclockwise by the taut force of the front cable 3 through the lever arm L3, thus putting it into a sliding state. At this time, the spring 74 of the brake pad 7 will interfere with the slider 6. The brake pad 7 is a small spring 74, and when the brake pad 7 rotates counterclockwise, the spring 74 will bend under pressure. When the rear cable 4 is pulled by tension, causing the slider 6 to slide backward, the front cable 3 is not under tension and is in a relaxed state. Therefore, the front area of ​​the groove bottom 73 of the brake pad 7 will not be subjected to the taut force of the front cable 3. At this time, the small spring 74 in the rear area of ​​the brake pad 7 will rebound and cause the brake pad 7 to rotate clockwise through the lever arm L4, allowing the brake pad 7 to return to the braking state. This invention, by adding a brake pad 7 structure to the slider 6 and using a double safety mechanism of friction and a cable and spring 74 structure, ensures that the slider 6 rotates counterclockwise to enter a sliding state when moving forward, and rotates clockwise to enter a braking state when moving backward. Utilizing the characteristic that the brake pad 7 provides different frictional forces by varying the amount of interference with the slide rail 1 at different angles, this invention ensures that the slider 6 is not subjected to the frictional force provided by the brake pad 7 when moving forward, while overcoming the additional frictional force generated by the brake pad 7 when moving backward, thus solving the "negative load" problem.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slider structure for a car sunroof system, comprising a slider (6) and a cable connected to the slider (6), wherein the slider (6) is slidably embedded in a slide rail (1) of the sunroof system, the outer side of the slider (6) is connected to the handle of the screen (16), and the cable comprises a front cable (3) and a rear cable (4), the free ends of the front cable (3) and the rear cable (4) being respectively connected to the slider (6), characterized in that, It also includes a brake pad (7) disposed on the slider (6), the brake pad (7) being used to increase the friction between the slider (6) and the slide rail when the curtain (16) is stored; The brake pad (7) is mounted on the slider (6) via a rotating shaft (10), and the upper lever arm of the brake pad (7) is smaller than its lower lever arm.

2. The slider structure for the car sunroof system curtain handle according to claim 1, characterized in that, The brake pad (7) includes an upper contact portion (71) and a lower contact portion (72). The upper contact portion (71) can contact the upper sliding surface of the slide rail (1), and the lower contact portion (72) can contact the lower sliding surface of the slide rail (1).

3. The slider structure for the car sunroof system curtain handle according to claim 2, characterized in that, The line connecting the upper contact portion and the lower contact portion is inclined, with the upper contact portion near the front end of the slide rail and the lower contact portion near the rear end of the slide rail.

4. The slider structure for the car sunroof system curtain handle according to claim 2, characterized in that, The brake pad (7) also includes a spring (74), which is disposed on the rear side of the brake pad, and the slider (6) is provided with a limiting part (64) that acts on the spring (74).

5. The slider structure for the curtain handle of the automotive sunroof system according to claim 1, characterized in that, The brake pad (7) is provided with a through groove (73) through which the front cable (3) passes.

6. The slider structure for the curtain handle of the automotive sunroof system according to claim 5, characterized in that, The through groove (73) has a U-shaped structure.

7. The slider structure for the curtain handle of the automotive sunroof system according to claim 5, characterized in that, The front side of the bottom of the through groove (73) is a planar structure.

8. The slider structure for the curtain handle of the automotive sunroof system according to any one of claims 1-6, characterized in that, The slider (6) is provided with a hollow column structure (62), and a tension spring (5) is provided inside the hollow column structure (62). The free end of the rear cable (4) passes through the tension spring (5) and is connected to the rear rivet head (9). The rear rivet head (9) can compress the tension spring (5) and slide inside the hollow column structure (62).

9. The slider structure for the curtain handle of the automotive sunroof system according to claim 8, characterized in that, The hollow column structure (62) is provided with a step (63) for positioning the tension spring (5), and the tension spring (5) is located between the step (63) and the rear rivet head (9).

10. The slider structure for the curtain handle of the automotive sunroof system according to any one of claims 1-6, characterized in that, The slider (6) is provided with a sliding shoe (2), which slides in cooperation with the slide rail (1).

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