Front window sunshade and commercial vehicle

Abstract

A front window sunshade. The front window sunshade comprises a winding assembly (1), guide assemblies (3), and support assemblies (4). The winding assembly (1) is provided with a winding shaft (11), and the winding shaft (11) is used for winding or unwinding a sunshade fabric (300). The guide assemblies (3) each comprise a guide rod (31) and a sliding block (32), the sliding block (32) is fixedly connected to the side edge of the sunshade fabric (300), and the guide rod (31) is arranged parallel to a windscreen (200) and extends along the vertical direction of the windscreen (200). The support assemblies (4) each have a first end connected to the winding assembly (1) and a second end connected to the lower edge of the sunshade fabric (300); the support assemblies (4) are fitted to the sunshade fabric (300); and the support assemblies (4) are capable of folding as the sunshade fabric (300) is wound or unfolding as the sunshade fabric (300) is unwound. Also provided is a commercial vehicle comprising the front window sunshade. The provision of components such as the winding assembly avoids irregular swaying of the sunshade fabric, protects the field of vision of drivers, and improves driving safety.

Description

Front windshield sunshade and commercial vehicles

[0001] This application claims priority to Chinese Patent Application No. 202411540796.X, filed with the Chinese Patent Office on October 31, 2024, and Chinese Patent Application No. 202422649281.5, filed with the Chinese Patent Office on October 31, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of vehicle engineering technology, such as a windshield sunshade and a commercial vehicle. Background Technology

[0003] Commercial vehicle windshield sunshades typically use a pull-down design to block sunlight and prevent direct sunlight from affecting visibility while driving. Traditional windshield sunshades are vertically raised and lowered, which can obstruct the driver's view when unfolded. When the vehicle is parked, the windshield sunshade needs to be fully extended to prevent direct sunlight from shining on the vehicle's interior components, but because it is vertically raised and lowered, it cannot effectively block sunlight from reaching the center console.

[0004] In response, one related technology provides an electric sunshade that is driven by a motor to rise and fall along the windshield, avoiding obstruction of the driver's view while also effectively blocking the center console when fully extended. However, commercial vehicles have large windshields, so the sunshade curtain swings irregularly during vehicle operation, causing frequent changes in light at the driver's location, which greatly affects the driver's visibility and driving safety. Summary of the Invention

[0005] This application provides a windshield sunshade and a commercial vehicle to solve the problem of the curtain of the sunshade swinging during driving in the related art.

[0006] This application provides a windshield sunshade, including a retractable assembly, a drive assembly, a guide assembly, and a support assembly. The retractable assembly is mounted on the windshield's upper crossbeam and has a retractable shaft configured to retract or unfold the sunshade fabric. The drive assembly is configured to drive the retractable shaft to rotate to retract or unfold the sunshade fabric. The guide assembly includes a guide rod and a slider, with the slider slidably connected to the guide rod and fixedly connected to the side edge of the sunshade fabric. The guide rod is parallel to the windshield glass and extends along the vertical direction of the windshield glass. The first end of the support assembly is connected to the retractable assembly, and the second end of the support assembly is connected to the lower edge of the sunshade fabric. The support assembly fits snugly against the sunshade fabric and can fold as the sunshade fabric is retracted or unfold as the sunshade fabric is unfolded.

[0007] In some embodiments, the support assembly includes a hinge shaft, a first support rod, and a second support rod. The first support rod is connected to the winding assembly, and the second support rod is connected to the lower edge of the sunshade fabric. The first and second support rods are angled together, and the lower end of the first support rod and the upper end of the second support rod are hinged together by the hinge shaft.

[0008] In some embodiments, an elastic element is provided on the hinge shaft, the elastic element being configured to increase the angle between the first support rod and the second support rod to unfold the sunshade cloth.

[0009] In some embodiments, two support components are provided, and the two support components are symmetrically arranged on the sunshade fabric.

[0010] In some embodiments, the winding assembly further includes a housing, a cover plate, and two end caps. The housing and the cover plate are fixedly connected to form a receiving space. The winding shaft and the drive assembly are both disposed in the receiving space. The two end caps are fixedly connected to both ends of the housing, and the first support rod is hinged to the end caps.

[0011] In some embodiments, the guide assembly further includes a counterweight rod fixedly connected to the lower edge of the sunshade cloth, and a second support rod hinged to the counterweight rod.

[0012] In some embodiments, the guide assembly consists of two guide rods arranged in parallel and located on both sides of the sunshade cloth, and two sliders fixedly connected to both ends of the counterweight rod.

[0013] In some embodiments, the slider is provided with an elongated hole, and the guide rod passes through the elongated hole along the sliding direction of the slider. The wall of the elongated hole is provided with a chamfer.

[0014] In some embodiments, the drive component is a servo motor, and the output shaft of the servo motor is connected to the take-up shaft.

[0015] This application provides a commercial vehicle, including a cab assembly, which includes a windshield upper crossbeam and a windshield glass, and also includes a front windshield sunshade of any of the above embodiments. A retractable assembly is installed on the windshield upper crossbeam, and the sunshade is used to partially or completely cover the windshield glass. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the front windshield sunshade in the first view of the embodiment of this application;

[0017] Figure 2 is a schematic diagram of the front windshield sunshade in the second view of the embodiment of this application;

[0018] Figure 3 is a schematic diagram of the structure of the front windshield sunshade after the sunshade cloth, outer shell and cover plate are hidden in the embodiment of this application;

[0019] Figure 4 is a schematic diagram of the connection structure between the winding assembly and the guiding assembly in an embodiment of this application;

[0020] Figure 5 is a schematic diagram of the structure of the slider and guide rod in an embodiment of this application;

[0021] Figure 6 is a schematic diagram of the windshield sunshade after installation in an embodiment of this application.

[0022] In the picture:

[0023] 100. Windshield top beam; 200. Windshield glass; 300. Sunshade cloth;

[0024] 1. Rewinding assembly; 11. Rewinding shaft; 12. Housing; 13. Cover plate; 14. End cap; 15. Bracket;

[0025] 2. Drive components; 21. Servo motor; 22. Power supply connector;

[0026] 3. Guide assembly; 31. Guide rod; 32. Slider; 321. Chamfer; 33. Connector; 34. Fixing block; 35. Rivet nut; 36. Counterweight rod;

[0027] 4. Support assembly; 41. First support rod; 42. Second support rod; 43. Hinge shaft; 431. Elastic element. Detailed Implementation

[0028] In the description of this application, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0030] The embodiments of this application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used to explain this application.

[0031] As shown in Figures 1-5, this application provides a windshield sunshade, applicable to commercial vehicles such as trucks or buses. It is used to partially shade the windshield during vehicle operation to prevent light from affecting the driver, and also to completely shade the windshield when the vehicle is parked, preventing direct sunlight from accelerating the aging of interior components. The windshield sunshade includes a retractable assembly 1, a drive assembly 2, a guide assembly 3, and a support assembly 4. The retractable assembly 1 is installed on the windshield upper crossbeam 100 and can be embedded in the interior panel at the windshield upper crossbeam 100 to reduce space occupation and avoid affecting the driver's vision. The retractable assembly 1 is provided with a retractable shaft 11, and the upper edge of the sunshade fabric 300 is fixedly connected to the retractable shaft 11. The retractable shaft 11 is configured to retract or unfold the sunshade fabric 300. The drive assembly 2 is configured to drive the take-up shaft 11 to rotate to roll up or unroll the sunshade 300. For example, when the drive assembly 2 drives the take-up shaft 11 to rotate forward, the take-up shaft 11 rolls up the sunshade 300, and when it rotates in the opposite direction, it unrolls the sunshade 300. In other embodiments, the drive assembly 2 can also roll up the sunshade 300 when it drives the take-up shaft 11 to rotate forward, and roll up the sunshade 300 when it rotates in the opposite direction. By setting the drive assembly 2, there is no need to manually roll up or unroll the sunshade 300. When the vehicle is driving on a road with backlighting, the driver can control the drive assembly 2 to roll up or unroll the sunshade 300 by pressing a button or using a remote control, thereby ensuring driving safety. The guide assembly 3 includes a guide rod 31 and a slider 32. The slider 32 is slidably connected to the guide rod 31 and is fixedly connected to the side edge of the sunshade 300. The guide rod 31 is arranged parallel to the windshield 200 and extends along the vertical direction of the windshield 200. In some embodiments, the slider 32 is connected to the sunshade 300 at a location near the lower edge of the side edge of the sunshade 300, i.e., the lower left or lower right corner, to ensure that the sunshade 300 can be fully rolled up and that it remains flat after unfolding. The first end of the support component 4 is connected to the rolling component 1, and the second end of the support component 4 is connected to the lower edge of the sunshade 300. The support component 4 is attached to the sunshade 300. In some embodiments, the support component 4 can be attached to the side of the sunshade 300 closest to the windshield 200 to reduce the space occupied in front of the driver's line of sight and improve aesthetics. The support component 4 can fold as the sunshade 300 is rolled up or unfold as the sunshade 300 is unfolded, thereby providing reliable support for the sunshade 300, significantly reducing the amplitude and frequency of the sunshade 300's swaying during vehicle operation, thus reducing the impact on the driver's vision and improving driving safety. In addition, the guide rod 31 ensures that the sunshade 300 unfolds parallel to the windshield 200, avoiding any obstruction to the driver's view, while also effectively shielding the center console when fully unfolded.

[0032] In some embodiments, referring to Figures 1-3, the support assembly 4 includes a hinge shaft 43, a first support rod 41, and a second support rod 42. The top end of the first support rod 41 is connected to the winding assembly 1 via a hinge connection; the bottom end of the second support rod 42 is connected to the lower edge of the sunshade fabric 300 via a hinge connection. The first support rod 41 and the second support rod 42 are angled together, and the lower end of the first support rod 41 and the upper end of the second support rod 42 are hinged together via the hinge shaft 43. As the sunshade fabric 300 unfolds or rewinds, the distance between the lower edge of the sunshade fabric 300 and the winding assembly 1 increases or decreases, and the angle between the first support rod 41 and the second support rod 42 changes accordingly. Specifically, when the sunshade fabric 300 is rewinding, the angle between the first support rod 41 and the second support rod 42 decreases; when the sunshade fabric 300 is unfolding, the angle between the first support rod 41 and the second support rod 42 increases. Meanwhile, since the first support rod 41 and the second support rod 42 are respectively hinged to the winding assembly 1 and the lower edge of the sunshade cloth 300, that is, the position of the connection point does not move, the hinge shaft 43 moves along the curved trajectory during the change of the included angle of the first support rod 41 and the second support rod 42, so as to ensure the smooth unfolding or winding process of the sunshade cloth 300.

[0033] Taking the unfolding process of the sunshade cloth 300 as an example, the drive component 2 drives the take-up shaft 11 to rotate. Under the influence of the weight of the support component 4, the weight of the slider 32, and the weight of the sunshade cloth 300 itself, the sunshade cloth 300 tends to move downward. At the same time, the slider 32 slides downward along the guide rod 31, causing the sunshade cloth 300 to unfold downward. Meanwhile, the angle between the first support rod 41 and the second support rod 42 increases. The degree of unfolding of the sunshade cloth 300 depends on the angle at which the drive component 2 drives the take-up shaft 11 to rotate. When the specified position is reached, the sunshade cloth 300 no longer unfolds. The weight of the support component 4, the weight of the slider 32, and the weight of the sunshade cloth 300 are all borne by the drive component 2. In this embodiment, the drive component 2 is a servo motor 21, whose output shaft is connected to the take-up shaft 11 via gears or a coupling. In this embodiment, the output shaft of the servo motor 21 and the take-up shaft 11 are coaxially arranged and rigidly connected by a gear coupling. When the servo motor 21 stops, it can withstand a certain degree of external force without being forced to rotate, ensuring the reliability of the device. The servo motor 21 is electrically connected to a power supply connector 22, which connects to the vehicle's power supply module to supply power to the servo motor 21, thereby improving the standardization of components.

[0034] In some embodiments, an elastic element 431 is further provided on the hinge shaft 43. The elastic element 431 is configured to increase the included angle between the first support rod 41 and the second support rod 42 to unfold the sunshade cloth 300. During the unfolding process of the sunshade cloth 300, the elastic element 431 provides additional elastic force to the first support rod 41 and the second support rod 42, thereby enabling the sunshade cloth 300 to unfold to the preset position more quickly, and improving the flatness of the sunshade cloth 300 under the action of external force. The elastic element 431 can be a coil spring or a torsion spring. When the elastic element 431 is selected as a coil spring, the two ends of the coil spring are fixedly connected to the first support rod 41 and the second support rod 42 respectively; when the elastic element 431 is selected as a torsion spring, the two spring arms of the torsion spring abut against the first support rod 41 and the second support rod 42 respectively.

[0035] In some embodiments, as shown in Figures 1 and 3, the sum of the lengths of the first support rod 41 and the second support rod 42 in this embodiment is greater than the length of the maximum unfolding stroke of the sunshade 300. Therefore, even when the sunshade 300 is fully unfolded, there is still an angle between the first support rod 41 and the second support rod 42 to ensure that no dead points occur during the rewinding process, preventing jamming. Furthermore, due to the large size of the windshield of commercial vehicles, two support components 4 are provided in this embodiment, symmetrically arranged on the sunshade 300. This ensures that when the sunshade 300 is rewound, i.e., when both support components 4 are in a folded state, the two hinge axes 43 of the two support components 4 do not interfere with each other, ensuring that the sunshade 300 can be fully rewound.

[0036] In some embodiments, referring to Figures 1-2, the winding assembly 1 further includes a housing 12, a cover plate 13, and two end caps 14. The housing 12 is fixedly connected to the cover plate 13 and forms an accommodating space. The housing 12 has an arc-shaped or semi-circular shell structure. After being connected to the cover plate 13, it forms an accommodating space. To improve space utilization, the cover plate 13 is located on the side closer to the windshield glass 200, and the housing 12 is located on the side away from the windshield glass 200. The winding shaft 11 and the drive assembly 2 are both located within the accommodating space, and the two end caps 14 are respectively fixed to both ends of the housing 12. The first support rod 41 is hinged to the end cap 14, thereby ensuring that the first support rod 41 fits better with the sunshade cloth 300. The guide assembly 3 further includes a counterweight rod 36, which is fixedly connected to the lower edge of the sunshade cloth 300. The second support rod 42 is hinged to the counterweight rod 36, and the length of the counterweight rod 36 is greater than or equal to the length of the lower edge of the sunshade cloth 300. By setting a counterweight rod 36, the sunshade cloth 300 can be unfolded faster, and the counterweight rod 36 can pull the sunshade cloth 300 after it is unfolded, which can improve the flatness of the sunshade cloth 300 after it is unfolded.

[0037] In some embodiments, the winding assembly 1 further includes brackets 15, with a plurality of top brackets 15 configured to connect to the upper part of the vehicle body. Exemplarily, four brackets 15 may be provided.

[0038] In some embodiments, referring to Figures 1-4, two guide components 3 are provided. The guide rods 31 of the two guide components 3 are arranged in parallel and located on both sides of the sunshade 300. For example, the guide rods 31 are parallel to the side edges of the sunshade 300. The two sliders 32 of the two guide components 3 are fixedly connected to the two ends of the counterweight rod 36, thereby ensuring the synchronicity of the movement of the two sliders 32. The guide component 3 also includes a fixing block 34, a connector 33, and a rivet nut 35. The upper end of the connector 33 is fixedly connected to the end cap 14, and the lower end is riveted with a rivet nut 35. The upper end of the guide rod 31 is provided with an external thread, and the fixed connection is achieved by the rivet nut 35, thereby reducing the space occupied in the left and right direction of the vehicle. The fixing block 34 is a rubber part that is bonded or adsorbed onto the windshield 200. The lower end of the guide rod 31 is inserted into the fixing block 34 for fixation.

[0039] In some embodiments, as shown in FIG5, the slider 32 is provided with an elongated hole, and the guide rod 31 passes through the elongated hole and slides in contact with the inner wall of the elongated hole. The long axis of the elongated hole is parallel to or coincides with the extension of the axis of the counterweight rod 36, thereby avoiding motion interference between the two sliding pairs formed by the two guide components 3 in the horizontal direction. To reduce the friction between the guide rod 31 and the slider 32, chamfers 321 are provided above and below the wall of the elongated hole along the sliding direction of the slider 32, thereby reducing the friction between the two by reducing the contact area with the guide rod 31. At the same time, the slider 32 can be made of polyoxymethylene, which has the characteristics of self-lubrication and low coefficient of friction, to reduce the friction between the slider 32 and the guide rod 31.

[0040] As shown in Figure 6, this application provides a commercial vehicle, including a cab assembly. The cab assembly includes a windshield upper crossbeam 100 and a windshield glass 200, and also includes a front windshield sunshade in this embodiment. A retractable assembly 1 is installed on the front windshield upper crossbeam 100, and the sunshade 300 is configured to partially or completely cover the windshield glass 200. By setting the front windshield sunshade in this embodiment, the impact of backlight on the driver during driving is reduced, and direct sunlight is prevented from shining on the interior parts and interior panels when the vehicle is parked.

Claims

1. A windshield sunshade, comprising: A winding assembly (1) is installed on the upper crossbeam (100) of the windshield. The winding assembly (1) is provided with a winding shaft (11), which is configured to wind up or unwind the sunshade cloth (300). A drive assembly (2) configured to drive the take-up shaft (11) to rotate to take up or unfold the sunshade cloth (300); The guide assembly (3) includes a guide rod (31) and a slider (32). The slider (32) is slidably connected to the guide rod (31). The slider (32) is fixedly connected to the side edge of the sunshade (300). The guide rod (31) is arranged parallel to the windshield glass (200) and extends along the vertical direction of the windshield glass (200). A support component (4) is provided, with its first end connected to the winding component (1) and its second end connected to the lower edge of the sunshade fabric (300). The support component (4) is attached to the sunshade fabric (300) and can be folded as the sunshade fabric (300) is wound up or unfolded as the sunshade fabric (300) is unfolded.

2. The windshield sunshade according to claim 1, wherein, The support assembly (4) includes a hinge shaft (43), a first support rod (41), and a second support rod (42). The first support rod (41) is connected to the winding assembly (1), and the second support rod (42) is connected to the lower edge of the sunshade cloth (300). The first support rod (41) and the second support rod (42) are set at an angle, and the lower end of the first support rod (41) and the upper end of the second support rod (42) are hinged together by the hinge shaft (43).

3. The windshield sunshade according to claim 2, wherein, An elastic element (431) is provided on the hinge shaft (43), and the elastic element (431) is configured to increase the angle between the first support rod (41) and the second support rod (42) to unfold the sunshade cloth (300).

4. The windshield sunshade according to claim 2, wherein, The support components (4) are configured as two, and the two support components (4) are symmetrically arranged on the sunshade cloth (300).

5. The windshield sunshade according to claim 2, wherein, The winding assembly (1) further includes a housing (12), a cover plate (13) and two end caps (14). The housing (12) is fixedly connected to the cover plate (13) and forms a receiving space. The winding shaft (11) and the drive assembly (2) are both disposed in the receiving space. The two end caps (14) are respectively fixedly connected to both ends of the housing (12). The first support rod (41) is hinged to the end caps (14).

6. The windshield sunshade according to claim 2, wherein, The guide assembly (3) also includes a counterweight rod (36), which is fixedly connected to the lower edge of the sunshade cloth (300), and the second support rod (42) is hinged to the counterweight rod (36).

7. The windshield sunshade according to claim 6, wherein, The guide assembly (3) is configured as two, with the two guide rods (31) arranged in parallel and located on both sides of the sunshade cloth (300), and the two sliders (32) fixedly connected to both ends of the counterweight rod (36).

8. The windshield sunshade according to claim 6, wherein, The slider (32) is provided with an elongated hole, and the guide rod (31) passes through the elongated hole along the sliding direction of the slider (32). The wall of the elongated hole is provided with a chamfer (321).

9. The windshield sunshade according to claim 1, wherein, The drive component (2) is a servo motor (21), and the output shaft of the servo motor (21) is connected to the take-up shaft (11).

10. A commercial vehicle, comprising a cab assembly including a windshield upper crossbeam (100) and a windshield glass (200), and further comprising a windshield sunshade as described in any one of claims 1-9, wherein a retractable assembly (1) is mounted on the windshield upper crossbeam (100), and the sunshade cloth (300) is configured to partially or completely cover the windshield glass (200).

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