Sunshade apparatus for vehicle sunroof
By introducing a support plate and an improved roller assembly design into the vehicle sunroof sunshade device, the radial load problem of the roller assembly on the motor was solved, improving the reliability of the device and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- WEBASTO SHANGHAI
- Filing Date
- 2025-11-04
- Publication Date
- 2026-05-15
AI Technical Summary
In existing vehicle sunroof sunshade devices, the end of the roller assembly needs to bear the tension of the pull cord, which causes the motor to bear a large radial load, affecting the reliability and lifespan of the device.
The design incorporates a support plate and an improved reel assembly. The support plate bears part of the tension, reducing the radial load on the drive assembly. The support plate and receiver structure maintain the stable rotation of the reel assembly, reducing the burden on the motor from the drive shaft.
It reduces the radial load on the drive components, avoids adverse effects, improves the reliability and service life of the device, and simplifies the maintenance and assembly process.
Smart Images
Figure CN2025132449_15052026_PF_FP_ABST
Abstract
Description
vehicle sunroof sunshade device Technical Field
[0001] This application relates to the field of vehicle technology, and in particular to a sunroof sunshade device for vehicles. Background Technology
[0002] Some vehicles are equipped with sunroofs, or even panoramic sunroofs, to increase the amount of light entering the vehicle and improve the visibility for passengers. However, in environments with strong sunlight, the sunroof needs to be covered to reduce the amount of light entering the vehicle.
[0003] Sunshade devices can be installed at skylights to block sunlight. A typical sunshade device includes a curtain, a roller assembly, a pull cord, and a motor. The curtain is wound around the roller assembly and includes a free end. One end of the pull cord is connected to the end of the roller assembly, and the other end is connected to the free end of the curtain. The motor is connected to the end of the roller assembly via a drive shaft. Thus, the motor drives the roller assembly to rotate, which in turn drives the pull cord, causing the curtain to unwind from the roller and unfold to block the skylight, or to roll the curtain back onto the roller to reveal the skylight. However, when using this type of sunshade device, the end of the roller assembly bears the tension of the pull cord, and the drive shaft transmits this tension to the motor, subjecting it to a large radial load, which can adversely affect the motor. Summary of the Invention
[0004] To address the aforementioned technical problems, this application proposes a vehicle sunroof sunshade device. The vehicle sunroof sunshade device includes: a frame including a first mounting base extending along a first direction; a drive assembly; a roller assembly extending along the first direction and disposed in the first mounting base; the roller assembly includes a driving end and a driven end opposite to each other; a drive shaft extending along the first direction and including a first connecting section and a second connecting section opposite to each other; the first connecting section is connected to the driving end of the roller assembly, and the second connecting section is connected to the drive assembly, so that the drive assembly drives the roller assembly to rotate; a first pull cord extending along a second direction perpendicular to the first direction; the first pull cord is adapted to... The reel assembly is wound onto or released from the driving end of the reel assembly as it rotates; a second pull cord extends in a second direction and is spaced apart from the first pull cord in a first direction; the second pull cord is adapted to be wound onto or released from the driven end of the reel assembly as it rotates; and a support plate is disposed at a first end of a first mounting base and extends in a vertical direction perpendicular to the first and second directions; the support plate is configured with a receiving port corresponding to the first mounting base; the driving end of the reel assembly is adapted to be rotatably held within the receiving port.
[0005] In one embodiment, the cross-section of the active end of the reel assembly is circular; the circumferential edge of the receiving port is provided with a notch that extends vertically upward, and the size of the notch is less than or equal to the radial dimension of the active end of the reel assembly.
[0006] In one embodiment, the notch includes a first side and a second side, the first side being higher than the second side and the first side being adapted to stop the active end of the reel assembly.
[0007] In one embodiment, the reel assembly includes a reel body extending in a first direction and a first sheave, the first sheave being fixedly mounted at a first end of the reel body to form an active end; a first connecting section of the drive shaft is fixedly connected to the first end of the reel body and spaced apart from the first sheave.
[0008] In one embodiment, the first reel includes a first winding portion and an annular first mounting portion extending from the first winding portion in a first direction; a first pull rope is adapted to be wound onto or released from the first winding portion; the first mounting portion is located away from the reel body and is rotatably held within a receiving port.
[0009] In one embodiment, a circumferentially extending mounting groove is formed on the circumferential surface of the first mounting portion; at least a portion of the circumferential edge of the receiving port is fitted into the mounting groove, and the mounting groove is adapted to rotate relative to the receiving port.
[0010] In one embodiment, a first mounting opening is formed on the circumferential sidewall of the first end of the reel body; the first pulley is provided with a mounting sleeve extending in a first direction, and a first mounting protrusion is formed on the circumferential inner surface of the mounting sleeve; the mounting sleeve is adapted to be fitted onto the first end of the reel body, and the first mounting protrusion is adapted to engage with the first mounting opening.
[0011] In one embodiment, the first pulley is further provided with a plurality of clamping ribs protruding from the circumferential inner surface of the mounting sleeve; each clamping rib extends along a first direction; after the mounting sleeve is fitted onto the first end of the reel body, the plurality of clamping ribs abut against the circumferential outer surface of the first end of the reel body.
[0012] In one embodiment, the scroll body is cylindrical, and a second mounting port and a connecting hole offset from the second mounting port are formed on the circumferential sidewall of the first end of the scroll body; the first connecting section of the drive shaft is formed with a second mounting protrusion protruding from the circumferential surface of the first connecting section and a connecting hook offset from the second mounting protrusion; the first connecting section is adapted to be inserted into the scroll body, the second mounting protrusion is adapted to be fitted into the second mounting port, and the connecting hook is adapted to be fitted into the connecting hole.
[0013] In one embodiment, a plurality of abutting protrusions are provided on the circumferential outer surface of the first connecting segment; after the first connecting segment is inserted into the scroll body, the plurality of abutting protrusions abut against the inner surface of the scroll body.
[0014] In one embodiment, a first mounting hole is provided on the frame along a first direction, and a second mounting hole is provided on the drive assembly along the first direction; the drive assembly is adapted to be arranged on the frame along the first direction, and the second mounting hole is adapted to be aligned with the first mounting hole; fasteners along the first direction are provided in the first mounting hole and the second mounting hole to fasten the drive assembly to the frame along the first direction.
[0015] The beneficial effects of this application are as follows: According to the vehicle sunroof sunshade device of this application, when the first pull cord applies a pulling force along the second direction to the active end of the roller assembly, the support plate will bear a portion of the pulling force. This reduces the pulling force borne by the drive assembly and reduces the radial load borne by the drive assembly, avoiding adverse effects of a large radial load on the drive assembly. Attached Figure Description
[0016] With the aid of non-limiting examples of exemplary embodiments of this application, the present application will be further described in a detailed description following with reference to several accompanying drawings. The drawings are not drawn to scale.
[0017] Figure 1 schematically shows a vehicle according to one embodiment of this application.
[0018] Figure 2 schematically shows a vehicle sunroof sunshade device according to an embodiment of this application.
[0019] Figure 3 schematically shows a simplified structural diagram of a vehicle sunroof sunshade device.
[0020] Figure 4a schematically shows the state in which the active end and drive assembly of the reel assembly are positioned on the frame.
[0021] Figure 4b schematically shows an exploded view of Figure 4a.
[0022] Figure 5 schematically shows the mating relationship between the first pulley of the reel assembly and the receiving port of the support plate.
[0023] Figure 6 schematically shows a side view of a vehicle sunroof sunshade device, which schematically shows the roof panel and sunroof glass.
[0024] Figure 7 schematically shows the frame.
[0025] Figure 8 schematically shows the first end of the first mounting base.
[0026] Figure 9 schematically shows the second end of the first mounting base.
[0027] Figure 10 schematically shows the drive shaft.
[0028] Figure 11 schematically shows the reel assembly.
[0029] Figure 12 schematically shows an exploded view of the reel assembly, with the drive shaft shown.
[0030] Figure 13 schematically shows the mating relationship between the mounting groove of the first pulley and the protrusion on the support plate.
[0031] Figure 14 schematically shows the first rope pulley.
[0032] Figure 15 schematically shows the mounting sleeve of the first pulley.
[0033] Figure 16 schematically shows a cross-sectional view of the reel body, drive shaft and first pulley assembled together.
[0034] Figure 17 schematically shows a cross-sectional view of the spool body, drive shaft and first pulley assembled together, with the curtain fabric shown in the figure.
[0035] Figure 18 schematically shows the assembled state of the roller body, the second pulley, and the mounting plate, with the curtain fabric shown in the figure.
[0036] Figure 19 schematically shows the shaft hole on the transmission component.
[0037] List of reference numerals in the attached drawings: 1. Vehicle; 11. Sunroof opening; 12. Roof panel; 13. Sunroof glass; 2. Vehicle sunroof sunshade device; 201. Curtain; 202. Guide rail; 204a. First pull cord; 204b. Second pull cord; 205. Free edge of the curtain; 207. Tensioner; 206a. First pulley block; 206b. Second pulley block; 3. Frame; 301. First mounting base; 302. Second mounting base; 303. First mounting hole; 304. Mounting post; 305. Fastener; 31. Support plate; 311. Receiving port; 312. Notch; 313. First side of the notch; 314. Second side of the notch; 315. Circumferential edge of the receiving port; 316. Protrusion; 32. Mounting plate; 321. Receiving groove; 322. Flange; 4. Drive assembly; 41. Motor; 42. Transmission component; 421. Shaft hole; 422. Second mounting hole. 5. Mounting hole; 501. Reel assembly; 502. Driven end; 51. First rope pulley; 511. First winding section; 512. First mounting section; 513. Mounting groove; 514. Side wall of mounting groove; 515. Bottom wall of mounting groove; 516. Mounting sleeve; 517. First mounting protrusion; 518. Clamping rib; 52. Second rope pulley; 521. Second winding section; 522. Second mounting section; 53. Reel body; 531. First end of reel body; 532. Second end of reel body; 533. First mounting opening; 534. Second mounting opening; 535. Connecting hole; 6. Drive shaft; 61. First connecting section; 611. Connecting hook; 612. Second mounting protrusion; 613. Gap; 614. Abutment protrusion; 62. Second connecting section; X: First direction; Y: Second direction; Z: Vertical direction; C: Insertion direction of first connecting section. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0039] Figure 1 schematically shows a vehicle 1 according to an embodiment of this application. As shown in Figure 1, a sunroof opening 11 is provided on the roof panel 12 of the vehicle 1, and a sunroof glass 13 is provided at the sunroof opening 11 (as shown in Figure 6). In order to cover the sunroof glass 13 when needed, a vehicle sunroof sunshade device 2 (hereinafter simply referred to as sunshade device 2) is also installed at the sunroof opening 11. For example, as shown in Figure 6, the sunshade device 2 is located in the space between the sunroof glass 13 and the roof panel 12 along a vertical direction Z that is generally parallel to the height direction of the vehicle (i.e., the vertical direction Z is generally perpendicular to the roof panel 12).
[0040] The following describes the sunshade device 2.
[0041] As shown in Figure 2, the sunshade device 2 mainly includes a frame 3, a drive assembly 4, a roller assembly 5, a curtain 201, and two guide rails 202.
[0042] Frame 3 is constructed as a strip extending in a first direction X. Two guide rails 202 are respectively connected to both ends of frame 3 and extend forward in a second direction Y, which is generally perpendicular to the first direction X. For example, the first direction X is generally the width direction of the vehicle, and the second direction Y is generally the longitudinal direction of the vehicle. The vertical direction Z is generally perpendicular to the first direction X and the second direction Y.
[0043] Both the drive assembly 4 and the reel assembly 5 are mounted on the frame 3, and the drive assembly 4 and the reel assembly 5 are connected via a drive shaft 6 (see Figures 4a and 4b) so that the drive assembly 4 can drive the reel assembly 5 to rotate. In one embodiment, the reel assembly 5 includes a driving end 501 and a driven end 502 opposite to each other (as shown in Figure 11). The drive shaft 6 extends along a first direction X and includes a first connecting section 61 and a second connecting section 62 opposite to each other (as shown in Figure 10). The first connecting section 61 is connected to the driving end 501 of the reel assembly 5, and the second connecting section 62 is connected to the drive assembly 4.
[0044] As shown in Figure 3, at least a portion of the curtain fabric 201 is wound around the roller assembly 5 and has a free edge 205, at which a tensioner 207 is provided to stretch the curtain fabric 201 along a first direction X. The sunshade device 2 also includes two pull cords (i.e., a first pull cord 204a and a second pull cord 204b) extending generally along a second direction Y and two pulley sets (i.e., a first pulley set 206a and a second pulley set 206b). The first pull cord 204a and the second pull cord 204b extend along two guide rails 202, respectively. The first pull cord 204a is connected to a first end of the tensioner 207 and, after being redirected by the first pulley set 206a, is connected to the driving end 501 of the roller assembly 5. The second pull cord 204b is connected to a second end of the tensioner 207 and, after being redirected by the second pulley set 206b, is connected to the driven end 502 of the roller assembly 5. Thus, when the drive assembly 4 drives the roller assembly 5 to rotate in the first direction (e.g., clockwise), the two pull cords move backward along the two guide rails 202 (i.e., in the direction towards the roller assembly 5 in the second direction Y) and are wound onto the roller assembly 5. The free edge 205 of the curtain 201 is pulled by the two pull cords, thereby releasing the curtain 201 from the roller assembly 5 and moving forward along the two guide rails 202 (i.e., away from the roller assembly 5 in the second direction Y). In this way, the curtain 201 is released from the roller assembly 5 and covers the skylight glass. When the drive assembly 4 drives the roller assembly 5 to rotate in the second direction (e.g., counterclockwise), the two pull cords move forward along the two guide rails 202 and are released from the roller assembly 5, and the free edge 205 of the curtain 201 moves backward along the two guide rails 202 towards the roller assembly 5, thereby winding the curtain 201 onto the roller assembly 5 to reveal the skylight glass. The movement of the curtain 201 is well known to those skilled in the art and will not be described in detail here.
[0045] Referring to Figures 2 and 7, the frame 3 includes a first mounting base 301 extending along a first direction X. The reel assembly 5 extends along the first direction X and is disposed in the first mounting base 301.
[0046] As shown in Figure 8, a support plate 31 is provided at the first end of the first mounting base 301. The support plate 31 extends upward in the vertical direction Z. A receiving port 311 corresponding to the first mounting base 301 is formed on the support plate 31. As shown in Figure 9, a mounting plate 32 extending in the vertical direction Z is provided at the second end of the first mounting base 301. A receiving groove 321 corresponding to the first mounting base 301 is formed on the mounting plate 32. For example, a circular flange 322 is provided on the side of the mounting plate 32 facing the support plate 31, and the flange 322 defines the receiving groove 321. In other embodiments, the receiving groove 321 may also be constructed as a recess on the mounting plate 32.
[0047] The driving end 501 of the reel assembly 5 is rotatably held within the receiving port 311 (as shown in FIG. 5), and the driven end 502 of the reel assembly 5 is rotatably accommodated within the receiving groove 321 (as shown in FIG. 18). Thus, the reel assembly 5 is rotatably mounted on the first mounting base 301 (or frame 3). In one embodiment, the receiving port 311 is arc-shaped; the cross-section of the driving end 501 is circular and adapted to the receiving port 311; the receiving groove 321 is circular, and the cross-section of the driven end 502 is circular and matches the receiving groove 321. Therefore, the reel assembly 5 can rotate within the first mounting base 301.
[0048] The support plate 31 serves to hold the reel assembly 5 along the second direction Y. When the first pull rope 204a applies a tension force along the second direction Y to the drive end 501 of the reel assembly 5, the support plate 31 will bear part of the tension to reduce the tension on the drive assembly 4. As a result, the radial load on the drive assembly 4 will also be reduced, avoiding adverse effects on the drive assembly 4 caused by a large radial load.
[0049] In addition, the support plate 31 also supports the active end 501 of the roller assembly 5 in the vertical direction Z. This helps to maintain good coaxiality among the active end 501 of the roller assembly 5, the drive shaft 6 and the shaft hole 421 on the drive assembly 4 (as shown in Figure 4b), so as to ensure the good performance of the sunshade assembly 2.
[0050] As shown in Figure 8, a notch 312 is provided on the circumferential edge 315 of the receiving port 311, and the notch 312 is generally upward in the vertical direction Z. In this way, the active end 501 of the roller assembly 5 can be installed into the receiving port 311 through the notch 312, which facilitates the assembly of the sunshade assembly 2.
[0051] The size of the notch 312 is less than or equal to the radial dimension of the active end 501 of the roller assembly 5. This prevents the active end 501 of the roller assembly 5 from detaching from the receiving port 311 and causing damage to the sunshade assembly 2. In one embodiment, the support plate 31 has appropriate elasticity. Thus, when the roller assembly 5 is installed, the active end 501 of the roller assembly 5 expands the notch 312 to pass through the notch 312 and enter into the receiving port 311. Subsequently, the shape of the notch 312 returns to its original shape and retains the active end 501 of the roller assembly 5 within the receiving port 311.
[0052] In one embodiment, the support plate 31 may be made of a plastic material with suitable elasticity, so that the notch 312 can easily undergo elastic deformation and help reduce the weight of the sunshade device 2. For example, the plastic material may be glass fiber reinforced polypropylene. Of course, other suitable materials may also be used to manufacture the support plate, depending on the actual situation, which will not be elaborated here. Preferably, the support plate 31, the mounting plate 32, and the frame 3 are integrally injection molded, which simplifies the manufacturing of the sunshade device 2.
[0053] As shown in Figure 8, the notch 312 includes a first side 313 and a second side 314. The first side 313 is located in front of the second side 314 along the second direction Y, and the first side 313 is higher than the second side 314. When using the sunshade device 2, the active end 501 of the roller assembly 5 is mainly subjected to a forward pulling force from the first pull cord 204a along the second direction Y. Therefore, the circumferential edge portion of the receiving port 311 adjacent to the first side 313 will bear part of the pulling force and constrain the active end 501 of the roller assembly 5 along the second direction Y. The active end 501 of the roller assembly 5 is hardly subjected to a backward force along the second direction Y. Therefore, as long as the height of the second side 314 can stably hold the active end 501 of the roller assembly 5 within the receiving port 311, the height of the second side 314 can be appropriately lowered.
[0054] In some other embodiments, the heights of the first and second sides may also be substantially equal. In this case, the central angle corresponding to the notch should be less than 180 degrees (for example, the central angle corresponding to the circumferential edge of the receiving port may be between 200 and 270 degrees, and the central angle corresponding to the notch may be between 90 and 160 degrees) so that the active end of the reel assembly is not easily dislodged from the receiving port through the notch.
[0055] Referring to Figures 11 and 12, the reel assembly 5 includes a first pulley 51, a second pulley 52, and a tubular reel body 53 extending in a first direction X. The fabric 201 can be wound onto or released from the reel body 53. The first pulley 51 is fixedly mounted at a first end 531 of the reel body 53 to form an active end 501. The second pulley 52 is fixedly mounted at a second end 532 of the reel body 53 to form a driven end 502. A first connecting section 61 of the drive shaft 6 is connected to the first end 531 of the reel body 53 and spaced apart from the first pulley 51. For example, the first connecting section 61 of the drive shaft 6 is inserted into the interior of the first end 531 of the reel body 53, and the first pulley 51 is fitted onto the circumferential outer surface of the first end 531 of the reel body 53 (as shown in Figures 16 and 17). According to this structure, the drive shaft 6 directly drives the roller body 53 to rotate, and there is no connection between the drive shaft 6 and the first rope wheel 51 (in fact, the first rope wheel 51 and the second rope wheel 52 are driven to rotate by the roller body 53). Compared with the prior art where the drive shaft drives the rope wheel to rotate, and the rope wheel then drives the roller body to rotate (i.e., the rope wheel plays a transmission role between the drive shaft and the roller body), in the technical solution of this application, the first rope wheel 51 does not play a transmission role and has a smaller load, which helps to improve the working reliability of the sunshade device 2.
[0056] In addition, the first pulley 51 and the second pulley 52 are fixedly connected to the roller body 53. During the process of releasing or winding the curtain 201 from or onto the roller body 53, the first pulley 51 and the second pulley 52 always maintain the same rotational speed as the roller body 53, thereby ensuring that the movement speeds of the two ends of the tensioner 207 on the curtain 201 are equal, which helps to prevent wrinkles from forming on the curtain 201.
[0057] Let's examine the structure of the first reel 51. As shown in Figure 14, the first reel 51 includes a first winding portion 511 and a first mounting portion 512. For example, the first winding portion 511 is generally conical and has a spiral groove. The first pull rope 204a is wound in the spiral groove and can be wound onto or released from the first winding portion 511. The first mounting portion 512 extends from the first winding portion 511 along a first direction X and is away from the reel body 53. The first mounting portion 512 is annular and has a circumferentially extending mounting groove 513 on its circumferential surface. At least a portion of the circumferential edge 315 of the receiving port 311 fits into the mounting groove 513. For example, if the receiving port 311 is generally oblong, the arcuate portion of the circumferential edge 315 fits into the mounting groove 513; if the receiving port 311 is arcuate, the entire circumferential edge 315 can fit into the mounting groove 513. The first pulley 51 is rotatable relative to the receiving port 311. This allows the driving end 501 of the roller assembly 5 to be rotatably held within the receiving port 311. Furthermore, the mounting groove 513 and the support plate 31 are mutually constrained along the first direction X, preventing the support plate 31 from disengaging from the first pulley 51 along the first direction X. Additionally, the support plate 31 is spaced apart from the first winding portion 511 to avoid interfering with the winding or unwinding of the first pull rope 204a on the first winding portion 511, which helps improve the stability of the movement of the curtain 201.
[0058] In one embodiment, a lubricant may be applied between the circumferential edge 315 of the receiving port 311 and the mounting groove 513 to reduce the friction between the circumferential edge 315 of the receiving port 311 and the mounting groove 513, thereby reducing the load on the drive assembly 4 and reducing or avoiding noise generated by the friction between the receiving port 311 and the mounting groove 513.
[0059] As shown in Figure 13, the mounting groove 513 includes two opposing sidewalls 514 and a bottom wall 515 connecting the two sidewalls 514. A protrusion 316 is provided on one side surface of the support plate 31, and the protrusion 316 contacts the corresponding sidewall 514. This reduces the contact area between the side surface of the support plate 31 and the corresponding sidewall 514 of the mounting groove 513, thereby helping to reduce the load on the drive assembly 4. It should be understood that protrusions can also be provided on both side surfaces of the support plate, which will not be elaborated here.
[0060] The mounting of the first pulley 51 on the first end 531 of the reel body 53 is described below. As shown in FIG15, the first pulley 51 is configured with a mounting sleeve 516 extending along the first direction X. For example, the mounting sleeve 516 is located inside the first winding portion 511. A first mounting protrusion 517 is formed on the circumferential inner surface of the mounting sleeve 516.
[0061] As shown in Figures 12 and 16, a first mounting opening 533 is formed on the circumferential sidewall of the first end 531 of the scroll body 53. For example, the first mounting opening 533 extends from the edge of the first end 531 of the scroll body 53 along the first direction X toward the second end 532 of the scroll body 53.
[0062] When installing the first pulley 51, align the first mounting protrusion 517 with the first mounting opening 533, and then move the first pulley 51 towards the reel body 53 in the first direction X until the first mounting protrusion 517 engages with the first mounting opening 533 (as shown in Figure 16). In this way, the mounting sleeve 516 is fitted onto the first end 531 of the reel body 53, and the first pulley 51 is installed on the first end 531 of the reel body 53. The reel body 53 drives the first pulley 51 to rotate via the first mounting protrusion 517; in other words, the first mounting protrusion 517 acts similarly to a transmission key.
[0063] As shown in Figure 15, the first pulley 51 is also constructed with multiple clamping ribs 518 protruding from the circumferential inner surface of the mounting sleeve 516, which extend along the first direction X. When the mounting sleeve 516 of the first pulley 51 is fitted onto the first end 531 of the roller body 53, not only does the first mounting protrusion 517 engage with the first mounting opening 533, but these clamping ribs 518 also abut against the circumferential outer surface of the first end 531 of the roller body 53 (as shown in Figure 16), so that the first pulley 51 is fixedly assembled on the roller body 53 and rotates synchronously with the roller body 53. In addition, this installation method of the first pulley 51 does not require additional fasteners, which reduces the number of parts in the sunshade device 2 and lowers the cost of the sunshade device 2.
[0064] The assembly of the first connecting section 61 of the drive shaft 6 with the reel body 53 is described below. Referring to Figures 12, 16, and 17, a second mounting opening 534 and a connecting hole 535 are also constructed on the circumferential sidewall of the first end 531 of the reel body 53. The second mounting opening 534 extends from the edge of the first end 531 of the reel body 53 along a first direction X toward the second end 532 of the reel body 53, and the second mounting opening 534 and the first mounting opening 534 are offset from each other along the circumferential direction of the reel body 53. The connecting hole 535 is located away from the edge of the first end 531 of the reel body 53. In one embodiment, the connecting hole 535 is also offset from the second mounting opening 534 along the circumferential direction of the reel body 53, for example, by about 180 degrees.
[0065] As shown in Figure 10, the first connecting section 61 of the drive shaft 6 is constructed with a second mounting protrusion 612 protruding from the circumferential surface of the first connecting section 61 and a connecting hook 611 offset from the second mounting protrusion 612. The second mounting protrusion 612 corresponds to the second mounting opening 534, and the connecting hook 611 corresponds to the connecting hole 535.
[0066] When assembling the drive shaft 6 with the reel body 53, the second mounting protrusion 612 is aligned with the second mounting opening 534. Then, the drive shaft 6 is moved along the first direction X into the reel body 53 until the second mounting protrusion 612 engages with the second mounting opening 534, and the connecting hook 611 engages with the connecting hole 535. This engagement of the connecting hook 611 with the connecting hole 535 prevents the reel body 53 and the drive shaft 6 from separating along the axial direction of the reel body 53. The drive shaft 6 drives the reel body 53 to rotate via the second mounting protrusion 612; in other words, the second mounting protrusion 612 functions similarly to a drive key.
[0067] In addition, when assembling the sunshade device 2, the drive shaft 6 and the roller body 53 are first assembled together. Then, the second connecting section 62 of the drive shaft 6 is connected to the drive assembly 4. During this process, the engagement of the connecting hook 611 and the connecting hole 535 prevents the drive shaft 6 from disengaging from the roller body 53.
[0068] As shown in Figure 10, two slits 613 extending along a first direction X are constructed on the first connecting section 61 of the drive shaft 6. The two slits 613 are circumferentially spaced apart, and the connecting hook 611 is located between the two slits 613, which gives the connecting hook 611 appropriate elasticity. When the drive shaft 6 is inserted into the reel body 53, the connecting hook 611 is compressed by the reel body 53 and elastically deforms. When the connecting hook 611 reaches the connecting hole 535, the shape of the connecting hook 611 automatically returns to its original shape and fits into the connecting hole 535. When the first connecting section 61 of the drive shaft 6 is installed in place in the reel body 53, the shape of the connecting hook 611 automatically returns to its original shape and emits a clicking sound, which allows the operator to determine whether the drive shaft 6 and the reel body 53 are properly assembled.
[0069] As shown in Figure 10, a plurality of abutment protrusions 614 are provided on the circumferential outer surface of the first connecting section 61 of the drive shaft 6. After the first connecting section 61 of the drive shaft 6 is inserted into the roller body 53, these abutment protrusions 614 abut against the inner surface of the roller body 53 (as shown in Figure 17). In this way, the drive shaft 6 and the roller body 53 will not or hardly move relative to each other in the radial direction, thereby avoiding abnormal noise during use of the sunshade device 2.
[0070] In one embodiment, as shown in FIG10, with reference to the insertion direction C of the first connecting segment 61 of the drive shaft 6 into the reel body 53, the front surface of each abutment protrusion 614 is configured as a guide ramp, and the front surface of the connecting hook 611 is also configured with a similar guide ramp. When the first connecting segment 61 of the drive shaft 6 is inserted into the reel body 53, these guide ramps help to reduce the movement resistance of the drive shaft 6, thereby further facilitating the assembly of the drive shaft 6 and the reel body 53.
[0071] The structure of the second sheave 52 is generally similar to that of the first sheave 51; only the main differences are described below. Referring to Figures 11 and 18, the second sheave 52 includes a second winding portion 521 and a second mounting portion 522. The second mounting portion 522 extends from the second winding portion 521 along a first direction X and is located away from the reel body 53. The second pull rope 204b is adapted to be wound onto or released from the second sheave 52. It should be noted that the second mounting portion 522 does not have a structure similar to the mounting groove on the first sheave. In some other embodiments, the second sheave may be exactly the same as the first sheave, but the mounting groove on the second sheave is not used.
[0072] The second mounting part 522 is rotatably accommodated in the receiving groove 321 on the mounting plate 32. The connection method between the second rope pulley 52 and the second end 532 of the reel body 53 is basically the same as that of the first rope pulley 51, and will not be described again here.
[0073] In one embodiment, a suitable gap exists between the second mounting portion 522 of the second pulley 52 and the mounting plate 32 along the first direction X. This allows the position of the roller assembly 5 relative to the frame 3 (or the first mounting base 301) along the first direction X to be adjusted as needed during the assembly of the sunshade device 2, ensuring that the curtain fabric 201 is centered between the two guide rails 202. Furthermore, the aforementioned gap also absorbs the accumulated tolerances of the various components of the roller assembly 5 along the first direction X, further facilitating the assembly of the roller assembly 5.
[0074] The drive assembly 4 will now be described. As shown in Figures 4a and 4b, the drive assembly 4 includes a motor 41 and a transmission member 42. The transmission member 42 is configured with a shaft hole 421 along a first direction X. This drive assembly 4 is well known to those skilled in the art and will not be described in detail here.
[0075] As also shown in Figure 7, the frame 3 further includes a second mounting base 302. The second mounting base 302 extends along a first direction X and is arranged side by side with the first mounting base 301 along a second direction Y. For example, the second mounting base 302 and the guide rail 202 are respectively located on both sides of the first mounting base 301 along the second direction Y. Referring to Figures 4a and 4b, the motor 41 is disposed in the second mounting base 302 along the first direction X (for example, the output shaft of the motor (not shown in the figure) is substantially parallel to the first direction X), and the transmission member 42 extends from the second mounting base 302 to the first mounting base 301 along the second direction Y. The shaft hole 421 on the transmission member 42 is aligned with the receiving port 311 on the support plate 31 and the reel assembly 5, thereby connecting the first connecting section 61 of the transmission shaft 6 to the reel assembly 5 (or the reel body 53) and inserting the second connecting section 62 of the transmission shaft 6 into the shaft hole 421. When using the sunshade device 2, the motor 41 rotates and drives the drive shaft 6 to rotate through the transmission component 42, and the drive shaft 6 drives the roller assembly 5 to rotate.
[0076] Referring also to Figures 4b and 5, a first mounting hole 303 along the first direction X is provided on the frame 3. For example, mounting posts 304 extending in the vertical direction Z are respectively provided on both sides of the second mounting base 302 along the second direction Y. A first mounting hole 303 is provided on each mounting post 304. Two second mounting holes 422 along the first direction X are provided on the drive assembly 4 (e.g., transmission member 42). The two second mounting holes 422 correspond to the two first mounting holes 303 respectively.
[0077] When assembling the sunshade device 2, the drive assembly 4 is mounted onto the frame 3 along the first direction X. For example, the motor 41 is inserted into the second mounting base 302 along the first direction X, and the two second mounting holes 422 are aligned with the two first mounting holes 303 respectively. Then, fasteners 305 (e.g., bolts) are installed in the aligned second mounting holes 422 and first mounting holes 303 along the first direction X to fasten the drive assembly 4 onto the frame 3. According to the solution of this application, when maintaining and / or replacing the drive assembly 4, only the fasteners 305 need to be removed along the first direction X to pull the drive assembly 4 out of the frame 3, without removing the roof panel 12 and / or the sunroof glass 13. Similarly, the drive assembly 4 can also be inserted into the frame 3 along the first direction X, and the fasteners 305 can be installed along the first direction X, which also does not require removing the roof panel 12 and / or the sunroof glass 13. In existing technologies, fasteners and drive components are typically arranged vertically, which necessitates the removal of the roof panel and / or sunroof glass when maintaining and / or replacing the drive components. Compared to existing technologies, the solution presented in this application simplifies the maintenance and / or replacement of the drive components.
[0078] Furthermore, when installing the drive assembly 4, first align the shaft hole 421 on the transmission member 42 with the second connecting section 62 of the transmission shaft 6. Then, move the drive assembly 4 along the first direction X so that the second connecting section 62 of the transmission shaft 6 is inserted into the shaft hole 421 and the motor 41 enters the second mounting base 302. Finally, fasteners 305 are set along the first direction X to fix the drive assembly 4 to the frame 3 along the first direction X. During installation, the drive assembly 4 is not subjected to a force along the vertical direction Z, so the drive assembly 4 will not shift along the vertical direction Z. In this way, after the drive assembly 4 is installed, the shaft hole 421 on the transmission member 42 and the transmission shaft 6 maintain good coaxiality and fit well together, which helps to improve the performance of the sunshade assembly 2.
[0079] In addition, according to the technical solution of this application, when designing the sunshade device, by appropriately adjusting the position of the first mounting hole and / or the second mounting hole in the vertical direction, the drive assembly can be rotated and adjusted around the drive shaft to adapt the sunshade device to narrow installation spaces (e.g., the space between the roof panel and the sunroof glass), which simplifies the design process of the sunshade device.
[0080] Referring also to Figures 10 and 19, the shaft hole 421 is a polygonal hole, and the circumferential surface of the second connecting section 62 of the drive shaft 6 is configured to match the shape of the shaft hole 421 (e.g., generally prismatic). Thus, when the shaft hole 421 is fitted onto the second connecting section 62 of the drive shaft 6, the axis of the drive shaft 6 can be automatically aligned with the center of the shaft hole 421, ensuring good coaxiality between the drive shaft 6 and the shaft hole 421. Furthermore, this shape of the shaft hole 421 and the second connecting section 62 of the drive shaft 6 together ensures that the shaft hole 421 and the drive shaft 6 always rotate synchronously, preventing the motor 41 from idling, which further improves the performance of the sunshade assembly 2.
[0081] In one embodiment, the second connecting segment 62 of the drive shaft 6 is configured such that its cross-sectional dimensions gradually decrease away from the first connecting segment 61. The shape of the shaft hole 421 matches the shape of the second connecting segment 62 of the drive shaft 6. For example, the second connecting segment 62 of the drive shaft 6 is generally frustum-shaped; correspondingly, the shaft hole 421 is a generally frustum-shaped hole. When the drive assembly 4 is mounted onto the frame 3, the further the drive assembly 4 moves in the direction from the second connecting segment 62 to the first connecting segment 61, the tighter the shaft hole 421 fits onto the second connecting segment 62 of the drive shaft 6, thereby achieving a fixed and tight connection between the drive component 42 and the rotating shaft 6. It should be understood that, as described above, after the drive assembly 4 is mounted in place on the frame 3, the drive assembly 4 is then secured to the frame 3 using fasteners 305 to prevent the drive component 42 from becoming detached from the rotating shaft 6.
[0082] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.
Claims
1. A vehicle sunroof sunshade device, characterized in that, The vehicle sunroof sunshade device includes: The frame includes a first mounting base extending along a first direction; Driver components; A reel assembly extends along the first direction and is disposed in the first mounting base; the reel assembly includes an active end and a driven end opposite to each other; A drive shaft extends along the first direction and includes a first connecting segment and a second connecting segment opposite to each other; the first connecting segment is connected to the active end of the reel assembly, and the second connecting segment is connected to the drive assembly so that the drive assembly drives the reel assembly to rotate. A first pull cord extends along a second direction perpendicular to the first direction; the first pull cord is adapted to be wound onto or released from the drive end of the reel assembly as the reel assembly rotates. A second pull cord extends along the second direction and is spaced apart from the first pull cord along the first direction; the second pull cord is adapted to be wound onto or released from the driven end of the reel assembly as the reel assembly rotates; and A support plate is disposed at a first end of the first mounting base and extends in a vertical direction perpendicular to the first direction and the second direction; the support plate is configured with a receiving port corresponding to the first mounting base; the active end of the reel assembly is adapted to be rotatably held within the receiving port.
2. The vehicle sunroof sunshade device according to claim 1, characterized in that, The active end of the reel assembly has a circular cross-section; the circumferential edge of the receiving port is provided with a notch that extends upward in the vertical direction, and the size of the notch is less than or equal to the radial dimension of the active end of the reel assembly.
3. The vehicle sunroof sunshade device according to claim 2, characterized in that, The notch includes a first side and a second side, the first side being higher than the second side and the first side being adapted to block the active end of the reel assembly.
4. The vehicle sunroof sunshade device according to claim 1, characterized in that, The reel assembly includes a reel body extending along the first direction and a first pulley, the first pulley being fixedly mounted at a first end of the reel body to form the active end; The first connecting section of the drive shaft is fixedly connected to the first end of the reel body and spaced apart from the first pulley.
5. The vehicle sunroof sunshade device according to claim 4, characterized in that, The first pulley includes a first winding portion and an annular first mounting portion extending from the first winding portion along the first direction; the first pull rope is adapted to be wound onto or released from the first winding portion; The first mounting portion is located away from the reel body and is rotatably held within the receiving port.
6. The vehicle sunroof sunshade device according to claim 5, characterized in that, The first mounting portion has a circumferentially extending mounting groove formed on its circumferential surface; at least a portion of the circumferential edge of the receiving port fits into the mounting groove, and the mounting groove is adapted to rotate relative to the receiving port.
7. The vehicle sunroof sunshade device according to claim 4, characterized in that, A first mounting opening is formed on the circumferential sidewall at the first end of the scroll body; The first pulley is configured with a mounting sleeve extending along the first direction, and a first mounting protrusion is formed on the circumferential inner surface of the mounting sleeve; the mounting sleeve is adapted to be fitted onto the first end of the reel body, and the first mounting protrusion is adapted to engage with the first mounting opening.
8. The vehicle sunroof sunshade device according to claim 7, characterized in that, The first pulley is also constructed with a plurality of clamping ribs protruding from the circumferential inner surface of the mounting sleeve; each clamping rib extends along the first direction; After the mounting sleeve is fitted onto the first end of the reel body, the plurality of clamping ribs abut against the circumferential outer surface of the first end of the reel body.
9. The vehicle sunroof sunshade device according to claim 4, characterized in that, The scroll body is cylindrical, and a second assembly port and a connecting hole offset from the second assembly port are formed on the circumferential sidewall of the first end of the scroll body. The first connecting section of the drive shaft is configured with a second mounting protrusion protruding from the circumferential surface of the first connecting section and a connecting hook offset from the second mounting protrusion; the first connecting section is adapted to be inserted into the scroll body, the second mounting protrusion is adapted to be fitted into the second mounting opening, and the connecting hook is adapted to be fitted into the connecting hole.
10. The vehicle sunroof sunshade device according to claim 9, characterized in that, Multiple abutting protrusions are provided on the circumferential outer surface of the first connecting segment; after the first connecting segment is inserted into the scroll body, the multiple abutting protrusions abut against the inner surface of the scroll body.
11. The vehicle sunroof sunshade device according to claim 1, characterized in that, The frame is provided with a first mounting hole along the first direction, and the drive assembly is provided with a second mounting hole along the first direction; The drive assembly is adapted to be arranged on the frame along the first direction, and the second mounting hole is adapted to be aligned with the first mounting hole; Fasteners are provided in the first mounting hole and the second mounting hole along the first direction to secure the drive assembly to the frame along the first direction.