Retracting device, curtain assembly and vehicle

Abstract

The application relates to a retracting device, a curtain assembly and a vehicle, which can solve the problem that a device for fixing a projection curtain in the prior art is easily touched by a rear passenger in actual use, thereby causing deformation or even breakage of the device and poor use stability. The retracting device comprises a support, a retracting assembly and a guide piece. The guide piece is rotationally connected with the support and is used for guiding the retracting assembly to unfold or fold. The guide piece comprises a body part and a reinforcing part. The reinforcing part protrudes in the thickness direction of the body part relative to the body part. When the guide piece rotates relative to the support, the reinforcing part and the support avoid each other.

Description

Technical Field

[0001] This application relates to the field of automotive interior technology, and in particular to a retractable device, a curtain assembly, and a vehicle. Background Technology

[0002] As automotive technology continues to iterate and upgrade, automobiles are gradually transforming from traditional means of transportation into multifunctional mobile lifestyle carriers, leading to the rapid development of in-vehicle entertainment technologies. Among these, in-vehicle projection technology, with its strong scene adaptability and excellent visual experience, is widely used in automotive interior configurations.

[0003] In related technologies, vehicle projection technology generally adopts the method of setting up a partitioned projection screen in the middle of the cabin, and various devices for fixing the projection screen have also emerged.

[0004] However, in actual use, the devices used to fix the projection screen in the relevant technologies are prone to being accidentally touched by rear passengers, which can easily cause the device to deform or even break, resulting in poor stability. Summary of the Invention

[0005] Therefore, it is necessary to provide a retraction device, a screen assembly, and a vehicle to address the problem that devices used to fix projection screens in related technologies are prone to accidental contact by rear-seat passengers during actual use, which can easily cause deformation or even breakage of the device and result in poor stability.

[0006] On one hand, this application provides a retraction and extension device, the retraction and extension device comprising:

[0007] support;

[0008] Retraction and extension components;

[0009] A guide member is rotatably connected to the bracket and used to guide the unfolding or closing of the retracting assembly. The guide member includes a body portion and a reinforcing portion. The reinforcing portion protrudes relative to the body portion along the thickness direction of the body portion. The reinforcing portion is configured such that when the guide member rotates relative to the bracket, the reinforcing portion and the bracket avoid each other.

[0010] In one embodiment, the body portion has a first surface on the side opposite to the bracket, the surface of the reinforcing portion has a first thickness between it and the first surface, the retractable assembly includes a guide rail with a receiving cavity, and the first thickness is configured to be less than the width of the receiving cavity.

[0011] In one implementation, the first thickness ranges from 6mm to 10mm.

[0012] In one embodiment, the surface of the body portion opposite to the reinforcing portion is provided with a recessed portion, which is used to accommodate the filler.

[0013] In one embodiment, the sunken portion has a second surface, the main body portion has a first surface on the side opposite to the bracket, and the second surface has a sunken depth relative to the first surface, the sunken depth being in the range of 0.5mm-1mm.

[0014] In one embodiment, the body portion has a second thickness, the second thickness being in the range of 1.8 mm to 3.5 mm.

[0015] In one embodiment, the main body is provided with a rotating part, which is rotatably connected to the bracket.

[0016] In one embodiment, the rotating part includes a first positioning groove, and the thickness of the main body part corresponding to the position of the first positioning groove is greater than or equal to 2 mm.

[0017] In one embodiment, the main body is provided with a reinforcing structure, and the bracket is provided with a corresponding guide groove. The reinforcing structure is movably disposed in the guide groove, and the reinforcing structure can move relative to the bracket along the trajectory of the guide groove.

[0018] In one embodiment, the reinforcing structure includes a second positioning groove, and the thickness of the body portion corresponding to the position of the second positioning groove is greater than or equal to 2 mm.

[0019] In one embodiment, the surface of the guide member is provided with a weight-reducing groove.

[0020] In one embodiment, the weight reduction groove includes a first groove and a second groove, the first groove being formed on the side of the body portion away from the reinforcing portion, and the second groove being formed on the side of the guide member facing the reinforcing portion.

[0021] In one embodiment, the projections of the first groove and the second groove along the thickness direction of the guide are arranged to overlap each other.

[0022] In one embodiment, in the thickness direction of the guide member, the first groove and the second groove have a common bottom wall, the common bottom wall has a preset wall thickness, and the preset wall thickness is greater than or equal to 1 mm.

[0023] In one embodiment, the guide is provided with a transmission part, the retraction assembly includes a first decorative element, the bracket is provided with a clearance groove, and the transmission part passes through the clearance groove and is connected to the first decorative element.

[0024] In one embodiment, the reinforcing part is provided with a guide groove that passes through the guide member. The retracting assembly includes a guide rail with a guide member that is movably disposed in the guide groove. The guide member can move relative to the guide member along the trajectory of the guide groove.

[0025] In one implementation, the thickness of the support ranges from 2mm to 5mm.

[0026] In one implementation, the guide is configured as a single piece of cast steel.

[0027] On the other hand, this application provides a curtain assembly including the retraction and deployment device as described above, the curtain assembly further including a curtain mechanism for mounting on the retraction and deployment assembly when the retraction and deployment assembly is deployed.

[0028] The aforementioned retraction device and curtain assembly of this application effectively increase the local cross-sectional area and material thickness of the guide component by adding a protruding reinforcing part to the main body of the guide component of the retraction device. This structurally strengthens the bending, torsion, and compressive resistance of the guide component, significantly improving the overall structural strength of the guide component. As a result, it is less prone to bending deformation and local breakage when subjected to external forces caused by accidental contact by occupants, thus significantly improving the stability of the device in use.

[0029] In another aspect, this application provides a vehicle that includes the retraction device as described above, or the vehicle that includes the curtain assembly as described above.

[0030] In one embodiment, the vehicle further includes a countersegment to which the bracket is connected.

[0031] The aforementioned vehicle is equipped with the retraction / expansion device or screen assembly provided in this application, which effectively solves the problem of traditional in-vehicle projection screens being prone to deformation and breakage due to accidental contact, thus improving the stability of the in-vehicle projection system. Even if a rear-seat passenger accidentally touches the screen while the vehicle is in motion, the reinforced structural design of the retraction / expansion device can effectively resist external impacts, ensuring the normal retraction and expansion of the screen mechanism and stable operation of the projection function. Simultaneously, the device operates without jamming, abnormal noise, or screen wrinkles, providing passengers with a high-quality in-vehicle projection experience, enhancing the vehicle's interior intelligence and driving comfort, and strengthening the vehicle's market competitiveness. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the curtain assembly in the unfolded state according to one embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the curtain assembly in the closed state according to one embodiment of this application.

[0034] Figure 3 This is a schematic diagram of the structure of the curtain assembly retraction device in one embodiment of this application.

[0035] Figure 4 This is a schematic diagram of the structure of the guide member of the unfolding device in one embodiment of this application.

[0036] Figure 5 for Figure 4 Rear view of the guide component of the shown retraction device.

[0037] Figure 6 This is a schematic diagram of the structure of the guide member of the retracting device in another embodiment of this application.

[0038] Figure 7 This is a schematic diagram of the support structure of the unfolding device in one embodiment of this application.

[0039] Figure 8 This is a schematic diagram of a load test on the curtain assembly in one embodiment of this application.

[0040] Explanation of icon numbers d1, First thickness; d2, Second thickness; d3, Recessed depth; M, Locking point; N, Force application point; 10, Curtain assembly; 11, Retraction device; 12, Curtain mechanism; 13, Protective component; 100, Bracket; 110, Guide groove; 120, Clearance groove; 130, First positioning hole; 140, Locking hole; 200, Retraction assembly; 210, Guide rail; 211, Guide component; 220, First decorative component; 230, Second decorative component; 300, Guide. Components; 310, Body part; 311, First surface; 312, Recessed part; 3121, Second surface; 313, Rotating part; 3131, First positioning groove; 3132, Second positioning hole; 314, Reinforcing structure; 3141, Second positioning groove; 3142, Third positioning hole; 320, Reinforcing part; 321, Guide groove; 330, Weight reduction groove; 331, First groove part; 332, Second groove part; 333, Common bottom wall; 340, Transmission part. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] Please see Figure 1This application provides a screen assembly 10, which may include a retraction device 11 and a curtain mechanism 12. The curtain mechanism 12 is used to be installed on the retraction assembly 200 when the retraction assembly 200 is unfolded. The curtain mechanism 12 provides a dedicated projection carrier for the projection light, ensuring a clear presentation of the projected image.

[0043] This application makes the following improvements to the aforementioned retraction device 11.

[0044] Please see Figure 1 and Figure 2 The unfolding / retracting device 11 provided in this application may include a support 100, an unfolding / retracting assembly 200, and a guide 300. The guide 300 is rotatably connected to the support 100 and is used to guide the unfolding / retracting assembly 200 to unfold or retract. Wherein, combined with Figure 5 and Figure 6 As shown, the guide member 300 includes a body portion 310 and a reinforcing portion 320. The reinforcing portion 320 protrudes relative to the body portion 310 along the thickness direction of the body portion 310. The reinforcing portion 320 is configured such that when the guide member 300 rotates relative to the bracket 100, the reinforcing portion 320 and the bracket 100 avoid each other.

[0045] It should be noted that the bracket 100 can be connected to the opposite component (not shown) of the curtain assembly 10. The bracket 100 serves as a basic support structure, providing an installation base and movement track for the guide component 300. As a key intermediary connecting the bracket 100 and the retraction assembly 200, the guide component 300 provides precise movement guidance for the retraction assembly 200 through its own rotational movement, ensuring the smoothness of the retraction action.

[0046] Specifically, the aforementioned retraction device 11 of this application effectively increases the local cross-sectional area and material thickness of the guide member 300 by adding a protruding reinforcing part 320 to the main body 310 of the guide member 300. This structurally strengthens the bending, torsion, and compressive resistance of the guide member 300, significantly improving the overall structural strength of the guide member 300. This makes it less prone to bending deformation and local breakage when subjected to external forces caused by accidental contact by occupants, thus significantly improving the stability of the device in use.

[0047] Additionally, it should be noted that mutual avoidance means that when the guide member 300 rotates relative to the bracket 100, the reinforcing part 320 and the bracket 100 will not interfere with each other. This avoidance design precisely controls the protruding size and position of the reinforcing part 320 to match the contour structure of the bracket 100. This ensures that the outer contour of the reinforcing part 320 always maintains a safe clearance with the bracket 100 during the entire process of the guide member 300's circumferential rotation relative to the bracket 100, and there will be no collisions or jamming. This ensures both the flexibility and smoothness of the guide member 300's movement, and does not affect the structural reinforcement effect of the reinforcing part 320, thus achieving a dual guarantee of structural strength and motion performance.

[0048] On the other hand, this application provides a vehicle that may include the retraction device 11 as described above, or the vehicle may include the curtain assembly 10 as described above.

[0049] Specifically, by installing the retraction device 11 or screen assembly 10 provided in this application inside the vehicle, the problem of deformation and breakage of traditional in-vehicle projection screen devices due to accidental contact can be effectively solved, improving the stability of the in-vehicle projection system. Even if a rear passenger accidentally touches the screen while the vehicle is in motion, the reinforced structural design of the retraction device 11 can effectively resist external impacts, ensuring the normal retraction and expansion of the screen mechanism and stable operation of the projection function. Simultaneously, the device operates without jamming, abnormal noise, or screen wrinkles, providing a high-quality in-vehicle projection experience for passengers, enhancing the vehicle's interior intelligence and driving comfort, and strengthening the vehicle's market competitiveness.

[0050] In some embodiments, the vehicle also includes a counter (not shown), to which the bracket 100 is connected (not shown).

[0051] Specifically, the handpiece (not shown) can serve as a connecting carrier between the curtain assembly 10 and the interior of the car body, and undertake the function of fixing and supporting the overall structure, so as to ensure that the curtain assembly 10 is firmly installed in the car cabin and will not be displaced or loosened due to vehicle vibration.

[0052] More specifically, the aforementioned counterpart (not shown) in this application may be implemented as the B-pillar of a vehicle or other sheet metal parts. For example, in some embodiments, the curtain assembly 10 of this application may have two sets of retraction devices 11, and the two sets of retraction devices 11 may be respectively arranged on the B-pillars on both sides of the vehicle to achieve fixation of the two sides of the curtain mechanism 12 in the width direction.

[0053] Please continue reading. Figures 1 to 5In some embodiments, the main body 310 is provided with a rotating part 313, which is rotatably connected to the bracket 100. The rotating part 313 serves as the connection hub between the guide 300 and the bracket 100, providing a stable rotation center for the guide 300 and ensuring that the guide 300 can make flexible circular movements around the bracket 100.

[0054] Specifically, the rotating part 313 can be riveted to the bracket 100 for rotational connection. The riveting connection technology is mature and the connection is firm, which can ensure that the guide 300 and the bracket 100 will not loosen or fall off during long-term rotation. Moreover, the rotational resistance is uniform after riveting, and the guide 300 rotates smoothly without jamming.

[0055] Please see Figure 4 In some embodiments, the rotating part 313 may include a first positioning groove 3131, and the thickness of the main body 310 corresponding to the position of the first positioning groove 3131 is greater than or equal to 2 mm. The first positioning groove 3131 provides a dedicated positioning structure for the riveting process, ensuring the connection accuracy between the rivet and the guide 300. The thickness requirement of greater than or equal to 2 mm ensures the structural strength of the riveting position, preventing cracking and deformation due to excessive thickness at the riveting position under long-term rotational force and external impact, which could lead to the failure of the connection between the guide 300 and the bracket 100. This ensures the long-term reliable operation of the rotating part 313 and provides a solid guarantee for the stable rotation of the guide 300.

[0056] Optionally, the thickness of the body part 310 corresponding to the position of the first positioning groove 3131 can be, but is not limited to, 2.0mm, 2.2mm, 2.4mm, 2.6mm, etc.

[0057] In addition, the rotating part 313 enables the guide 300 to rotate synchronously with the movement trajectory of the retractable assembly 200 during the unfolding and closing process, achieving precise follow-up guidance and avoiding jamming and offset problems caused by asynchronous movement between the guide 300 and the retractable assembly 200. This improves the guiding effect on the retractable assembly 200 and ensures that the curtain retraction and unfolding actions are completed smoothly, accurately, and quickly.

[0058] Please combine Figure 1 and Figure 7 As shown, in some embodiments, the bracket 100 includes a first positioning hole 130, the rotating part 313 includes a second positioning hole 3132, and the guide member 300 is aligned and rotatably connected to the first positioning hole 130 of the bracket 100 through the second positioning hole 3132. Optionally, the first positioning hole 130 and the second positioning hole 3132 can be rotatably connected by riveting, but not limited to.

[0059] Specifically, the coaxial alignment assembly structure with dual positioning holes enables the quick and easy coaxial centering installation of the guide component 300 and the bracket 100, resulting in convenient assembly and high assembly efficiency.

[0060] Please see Figures 3 to 5 In some embodiments, the reinforcing part 320 is provided with a guide groove 321, which passes through the guide member 300. The retractable assembly 200 includes a guide rail 210, and the guide rail 210 is provided with a guide member 211. The guide member 211 is movably disposed in the guide groove 321 and can move relative to the guide member 300 along the trajectory of the guide groove 321. The cooperation between the guide groove 321 and the guide member 211 constitutes the power transmission structure between the retractable assembly 200 and the guide member 300, realizing precise transmission of motion.

[0061] Specifically, the guide 211 is used to push the inner wall of the guide groove 321 during the unfolding or closing of the unfolding assembly 200, converting the linear motion of the unfolding assembly 200 into the rotational motion of the guide 300, thereby driving the guide 300 to rotate around the bracket 100 to complete the unfolding guiding action. The through-type design of the guide groove 321 improves the ease of assembly of the guide 211, thereby improving the precision and controllability of the movement trajectory of the guide 211, preventing the guide 211 from falling off or getting stuck, ensuring efficient and stable power transmission, and providing stability support for the smooth unfolding of the unfolding assembly 200.

[0062] Please see Figures 1 to 5 as well as Figure 7 In some embodiments, the main body 310 may be provided with a reinforcing structure 314, and the bracket 100 is provided with a corresponding guide groove 110. The reinforcing structure 314 is movably disposed in the guide groove 110, and the reinforcing structure 314 can move relative to the bracket 100 along the trajectory of the guide groove 110.

[0063] Optionally, the reinforcing structure 314 may be riveted to the bracket 100, such that the reinforcing structure 314 may form a double pin riveting force with the rotating part 313.

[0064] Please see Figure 4 and Figure 5 In some embodiments, the reinforcing structure 314 includes a third positioning hole 3142, which is aligned with the guide groove 110. Optionally, the third positioning hole 3142 and the guide groove 110 may be connected by riveting, such that a rivet or pin (not shown) can move relative to the bracket 100 along the trajectory of the guide groove 110.

[0065] Specifically, the third positioning hole 3142 allows the rivet or pin to slide and engage with the guide groove 110. This serves two purposes: it limits the assembly of the reinforcing structure 314 and the bracket 100 via the rivet or pin, and it also constrains the movement trajectory of the rivet or pin using the guide groove 110, precisely limiting the sliding stroke and swing range of the guide member 300. The structure is simple and reliable. Please refer to [link / reference]. Figure 3 and Figure 4 In some embodiments, the reinforcing structure 314 may include a second positioning groove 3141, and the thickness of the body portion 310 corresponding to the position of the second positioning groove 3141 is greater than or equal to 2 mm. The second positioning groove 3141 provides a dedicated positioning structure for the riveting process between the reinforcing structure 314 and the bracket 100, and the thickness requirement of greater than or equal to 2 mm ensures the structural reliability at this position.

[0066] Specifically, the second positioning groove 3141 can improve the convenience of riveting and provide a dedicated positioning structure for the riveting process. This enables the riveting structure of the reinforcing structure 314 to be quickly positioned and connected with the guide groove 110 of the bracket 100, simplifying the assembly process and improving production efficiency.

[0067] In addition, the thickness of the body part 310 corresponding to the second positioning groove 3141 is greater than or equal to 2mm, which helps to ensure strength. The reinforcing structure 314 serves as an auxiliary support point for the guide member 300, and the force is more concentrated. A thickness of greater than or equal to 2mm can effectively resist the tension, pressure and torque at the riveting position, preventing cracking, deformation and detachment after long-term use, ensuring that the reinforcing structure 314 continues to play an auxiliary support and guiding role, and maintaining the stability of the dual-point support structure of the guide member 300.

[0068] Optionally, the thickness of the body portion 310 corresponding to the position of the second positioning groove 3141 can be, but is not limited to, 2.0 mm, 2.2 mm, 2.4 mm, 2.6 mm, etc.

[0069] Specifically, the reinforcement structure 314 can cooperate with the rotating part 313 and change the single-point force of the guide 300 to a double-point force, thereby shortening the distance between the force point and the farthest end of the guide 211. This reduction in distance decreases the length of the force-bearing cantilever, which in turn significantly reduces the bending moment and stress concentration of the guide 300 under force, and significantly improves the resistance to damage of the guide 300.

[0070] For ease of understanding, such as Figure 3As shown, if the riveting point is only the rotating part 313, the distance between the rotating part 313 and the farthest end of the guide 211 is greater than the distance between the reinforcing structure 314 and the farthest end of the guide 211. This makes it easy for the guide 300 to have an excessive bending moment when subjected to positive palm pressure, and the risk of deformation or breakage will increase sharply.

[0071] Therefore, the reinforcement structure 314 increases the stress points, effectively disperses the external force on the guide 300, reduces the length of the stress cantilever, and helps to improve the resistance to damage of the guide 300, making it less prone to deformation and breakage when accidentally touched by the occupant, thus improving the stability of the device.

[0072] Please combine Figure 1 , Figure 6 and Figure 7 In some embodiments, the guide member 300 is provided with a transmission part 340, the retractable assembly 200 includes a first decorative member 220, the bracket 100 is provided with a clearance groove 120, and the transmission part 340 passes through the clearance groove 120 and is connected to the first decorative member 220. The cooperation between the transmission part 340 and the clearance groove 120 realizes the rigid linkage between the guide member 300 and the first decorative member 220, improving the motion synchronization of the retractable assembly 200.

[0073] Specifically, the retractable assembly 200 may include a first decorative element 220, a second decorative element 230, and a guide rail 210. The guide rail 210 can be connected to the second decorative element 230. The first decorative element 220 and the second decorative element 230 can be unfolded or closed. When unfolded, the first decorative element 220 and the second decorative element 230 unfold and arrange themselves sequentially to form a complete curtain support frame. When closed, the first decorative element 220 and the second decorative element 230 overlap and are stored in a hidden space, saving interior cabin space. The transmission unit 340 passes through the clearance groove 120 and connects to the first decorative element 220, directly transmitting the rotational movement of the guide element 300 to the first decorative element 220. This helps improve the linkage between the guide element 300 and the first decorative element 220, ensuring that the movements of the first decorative element 220 and the guide element 300 are completely synchronized, avoiding problems such as movement lag or deviation. This helps improve movement stability and ensures that the unfolding and closing actions of the retractable assembly 200 are precise and consistent. In addition, the transmission part 340 passes through the clearance groove 120, which provides movement space for the transmission part 340, avoids interference between the transmission part 340 and the bracket 100, and makes full use of the internal space of the bracket 100 to improve the structural compactness, making the overall retractable device 11 smaller and more suitable for vehicle installation environment.

[0074] Optionally, the transmission part 340 may be implemented as a connecting post or connecting protrusion, etc.

[0075] Please combine Figure 1 and Figure 6In some embodiments, the body portion 310 has a first surface 311 on the side opposite to the bracket 100, and a first thickness d1 exists between the surface of the reinforcing portion 320 and the first surface 311. The retractable assembly 200 includes a guide rail 210, which has an accommodating cavity, and the first thickness d1 is configured to be smaller than the width of the accommodating cavity. The first thickness d1, as a core dimensional parameter of the reinforcing portion 320, directly determines the strengthening effect and spatial adaptability of the reinforcing portion 320. By setting the first thickness d1 to be smaller than the width of the accommodating cavity of the guide rail 210, precise spatial adaptation between the reinforcing portion 320 and the guide rail 210 is achieved.

[0076] Specifically, the first thickness d1 is configured to be smaller than the width of the accommodating cavity so that the reinforcing part 320 can be completely embedded inside the accommodating cavity of the guide rail 210. While achieving the effect of structural reinforcement, it will not come into contact, rub or interfere with the inner wall of the guide rail 210, avoiding problems such as the movement of the retractable assembly 200 being stuck or the rotation of the guide 300 being obstructed due to interference. At the same time, it makes full use of the internal space of the accommodating cavity of the guide rail 210, reducing the overall volume and space occupied by the retractable device 11, improving the structural compactness, making it more suitable for the narrow installation space of the car cabin, and meeting the spatial layout requirements of the vehicle interior.

[0077] In some embodiments, the first thickness d1 can range from 6mm to 10mm. This range is determined by combining the stress requirements, space constraints, and lightweight requirements of the retractable device 11, ensuring that the reinforcing part 320 has sufficient structural strength while avoiding problems such as increased weight and excessive space occupation due to excessive thickness. For example, the first thickness d1 can be, but is not limited to, 6mm, 7mm, 8mm, 9mm, 10mm, etc. By flexibly adjusting the value of the first thickness d1 within the range of 6mm-10mm, it can adapt to the personalized needs of different vehicle models and different usage scenarios. At the same time, this thickness range can ensure that a reasonable gap is maintained between the reinforcing part 320 and the accommodating cavity of the guide rail 210, without interference or excessive gaps, further improving the stability of the structure during operation.

[0078] Please see Figure 6 In some embodiments, the side surface of the main body 310 facing away from the reinforcing part 320 may be provided with a recessed part 312, which is used to accommodate the filler.

[0079] Specifically, the filler can fill the gap between the guide 300 and the inner wall of the cavity of the guide rail 210, eliminate the assembly gap between the guide 300 and the guide rail 210, thereby reducing the lateral and longitudinal swaying of the guide rail 210 under the action of external force, preventing the guide rail 210 from swaying and causing the curtain mechanism 12 to shift, thereby reducing the wrinkles and offset of the curtain mechanism 12, ensuring the flatness of the curtain mechanism 12 after it is unfolded, and improving the quality of the projected image.

[0080] In some embodiments, the recessed portion 312 forms a concave structure on the surface of the body portion 310, and the filler can be, but is not limited to, configured as a gasket. In this way, the recessed portion 312 can form a dedicated structure for connecting the guide 300 and the gasket, providing a precise installation position and a fixed foundation for the gasket, and preventing the gasket from shifting or falling off during use.

[0081] Meanwhile, the gasket is made of flexible and wear-resistant material, which can form a flexible buffer layer between the guide 300 and the guide rail 210, isolate the direct contact and friction between metal parts, effectively reduce the abnormal noise caused by the collision and friction of parts during the opening and closing process, improve the quietness of the device operation, and optimize the user experience of drivers and passengers.

[0082] Please see Figure 6 In some embodiments, the recessed portion 312 has a second surface 3121, and the main body portion 310 has a first surface 311 on the side opposite to the bracket 100. The second surface 3121 has a recess depth d3 relative to the first surface 311, and the recess depth d3 ranges from 0.5mm to 1mm. This recess depth d3 ensures that the recessed portion 312 has sufficient positioning capability without affecting the structural strength of the main body portion 310.

[0083] Specifically, the recessed depth d3 facilitates precise positioning of the gasket. A recessed depth of 0.5mm-1mm d3 allows the gasket sufficient volume to embed into the recessed portion 312. This ensures that the sidewalls of the recessed portion 312 effectively limit the gasket's movement in the horizontal direction, ensuring that the gasket does not shift or fall off during long-term use, and continues to perform its gap-filling and buffering noise-reducing functions. In addition, the range of this recessed depth d3 will not excessively weaken the material thickness of the body portion 310, avoiding the problem of insufficient local strength and easy breakage of the body portion 310 due to an excessively deep recessed portion 312, thus balancing positioning effectiveness and structural strength.

[0084] For example, the sinking depth d3 can be, but is not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1.0mm.

[0085] Please see Figure 6 In some embodiments, the body portion 310 has a second thickness d2, which ranges from 1.8 mm to 3.5 mm. The second thickness d2, as the basic thickness parameter of the body portion 310, directly determines the overall strength and lightweight level of the guide member 300. A value range of 1.8 mm to 3.5 mm is a better choice for balancing strength and lightweight.

[0086] For example, the second thickness d2 can be, but is not limited to, 1.8mm, 2.0mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3.0mm, 3.2mm, 3.5mm, etc.

[0087] Specifically, the second thickness d2, ranging from 1.8mm to 3.5mm, ensures sufficient strength for the main body 310. The minimum thickness of 1.8mm meets the basic support and guidance requirements of the main body 310, preventing it from bending or breaking easily due to excessive thinness. The maximum thickness of 3.5mm significantly improves the bending and torsional resistance of the main body 310, enabling it to withstand greater external impacts and adapt to high-load usage scenarios. Simultaneously, the main body 310 within this thickness range has a moderate weight, not increasing the overall load on the retractable device 11, which aligns with the lightweight design concept of automotive interiors.

[0088] Please see Figure 4 and Figure 5 In some embodiments, the surface of the guide member 300 is provided with a weight-reducing groove 330. As a lightweight optimization structure for the guide member 300, the weight-reducing groove 330 can remove excess material and reduce the weight of the guide member 300 without affecting structural strength, thus improving the portability of the device. Simultaneously, the weight-reducing groove 330 can effectively reduce air resistance and moment of inertia during the rotation and movement of the guide member 300, reducing component movement resistance, making the rotation of the guide member 300 smoother and the response faster, further improving the smoothness and stability of the unfolding and closing of the retractable assembly 200. Please refer to [link / reference]. Figure 4 and Figure 5 In some embodiments, the weight-reducing groove 330 may include a first groove portion 331 and a second groove portion 332. The first groove portion 331 is formed on the side of the main body portion 310 away from the reinforcing portion 320, and the second groove portion 332 is formed on the side of the guide member 300 facing the reinforcing portion 320. The design of the double-sided groove achieves a balance between lightweight and structural strength, making full use of the structural reinforcement advantages of the reinforcing portion 320.

[0089] Specifically, since the reinforcing part 320 has the effect of strengthening the structure of the guide 300, the structural strength of this part is sufficient. Therefore, a first groove 331 is opened on the side of the main body 310 away from the reinforcing part 320, and a second groove 332 is opened on the side of the guide 300 facing the reinforcing part 320. This can maximize the removal of excess material and achieve lightweight optimization without reducing the overall strength of the guide 300. At the same time, the double-sided groove design can make the stress distribution of the guide 300 more uniform, avoiding stress imbalance and bending deformation caused by single-sided groove. While maintaining the strengthening effect, it also takes into account the lightness and improves the overall performance of the guide 300.

[0090] Please see Figure 4 and Figure 5 In some embodiments, the first groove 331 and the second groove 332 are arranged to overlap each other along the thickness direction of the guide member 300.

[0091] Specifically, the symmetrical design of the first groove 331 and the second groove 332, whose projections overlap, helps to form a symmetrical structure in the thickness direction of the guide member 300, ensuring the structural symmetry and uniform stress distribution of the guide member 300. Furthermore, when the guide member 300 is under stress, the stress distribution on both sides is uniform, preventing problems such as localized stress concentration and bending deformation caused by groove asymmetry. This effectively guarantees the basic strength of the guide member 300. At the same time, the symmetrical groove design simplifies the manufacturing process, facilitates mass production, reduces processing difficulty and manufacturing costs, and improves product consistency.

[0092] Please see Figure 4 In some embodiments, in the thickness direction of the guide member 300, the first groove 331 and the second groove 332 share a common bottom wall 333, which has a preset wall thickness, the value of which is greater than or equal to 1 mm. The design of the common bottom wall 333 ensures the structural integrity of the guide member 300, while the preset wall thickness ensures the supporting strength of the bottom wall.

[0093] Specifically, the shared bottom wall 333 ensures that the guide component 300 remains a connected whole, preventing the guide component 300 from breaking or separating due to the connection between the first groove 331 and the second groove 332. This maintains the structural integrity and continuity of the guide component 300 and improves its overall strength and resistance to deformation. Furthermore, the preset wall thickness of 1mm or greater balances lightness and strength. The minimum preset wall thickness of 1mm ensures that the shared bottom wall 333 has sufficient support to withstand external forces during the operation of the guide component 300, preventing breakage due to excessive thinness. Simultaneously, this wall thickness does not excessively increase material usage, maintaining a lightweight advantage and achieving a triple guarantee of structural strength, lightness, and durability.

[0094] For example, the preset wall thickness can be, but is not limited to, 1.0mm, 1.1mm, 1.3mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, etc.

[0095] In some embodiments, the thickness of the bracket 100 ranges from 2mm to 5mm. As the basic support structure of the retractable device 11, the thickness of the bracket 100 directly determines the support strength and stability of the overall device. The thickness range of 2mm to 5mm is suitable for various needs of vehicle use.

[0096] For example, the thickness of the bracket 100 can be, but is not limited to, 2mm, 2.5mm, 2.8mm, 3mm, 3.2mm, 3.5mm, 3.8mm, 4mm, 4.5mm, 4.8mm, 5mm, etc., which can be flexibly selected according to the vehicle space and load-bearing requirements. The bracket 100 with this thickness range is easy to process and install firmly, and can stably support the operation of the retraction device 11 for a long time, ensuring the safety of the overall structure.

[0097] Specifically, a thickness of 2mm-5mm for the bracket 100 helps to improve its strength. The minimum thickness of 2mm can meet the basic support requirements and ensure that the bracket 100 is not easily deformed, making it suitable for small vehicles with high lightweight requirements. The maximum thickness of 5mm can significantly improve the rigidity and load-bearing capacity of the bracket 100, while resisting vehicle driving vibration and external force impact from occupants, making it suitable for medium and large vehicles and high-load usage scenarios.

[0098] In some embodiments, the guide member 300 is configured as a single piece of cast steel. The single-piece cast steel forming process is a key process for improving the structural strength and integrity of the component, and can eliminate strength defects in spliced ​​structures.

[0099] Specifically, one-piece cast steel molding helps to improve structural strength. Cast steel material itself has excellent properties such as high strength, high rigidity, wear resistance, and impact resistance. The one-piece molding process can make the guide component 300 weld-free and without splicing gaps, avoiding cracking and breakage at splicing parts due to stress concentration, and greatly improving the overall strength and durability of the component. At the same time, the one-piece cast steel molded components have high dimensional accuracy, smooth surface, and uniform movement clearance, which can further improve the smoothness and quietness of the operation of the retractable device 11, extend the service life of the device, and meet the requirements of long-term reliable use of automotive interiors.

[0100] In some embodiments, the guide 300 may be made of duplex stainless steel, but is not limited to.

[0101] In some embodiments, the guide 300 undergoes passivation and electrophoretic surface treatment processes to meet the 96H neutral salt spray requirement.

[0102] In some embodiments, the bracket 100 may be made of SUS303 stainless steel (Japanese standard SUS303 stainless steel, free-machining austenitic stainless steel).

[0103] In some embodiments, the stent 100 undergoes passivation and electrophoretic surface treatment processes to meet the 96H neutral salt spray requirement.

[0104] Please see Figure 8 This application conducts a load test on the curtain assembly 10 on the vehicle provided above.

[0105] Specifically, such as Figure 8As shown, the curtain assembly 10 also includes a protective member 13, which is used to house and protect the curtain assembly 10's retraction device 11. This protective member 13 can, but is not limited to, be fixed to the vehicle's B-pillar, wherein the bracket 100 is concealed within the protective member 13. It should be noted that, as... Figure 7 As shown, the bracket 100 is provided with a locking hole 140, which is used to lock with the body sheet metal. The position of the locking hole 140 corresponds to the locking point M on the protective component 13. The curtain assembly 10 used for load testing also has a force application point N. The test applies a load of force F to the force application point N in the thickness direction of the guide rail 210, and then measures the displacement of the guide rail 210 in the force application direction through simulation analysis or actual measurement.

[0106] For example, the support 100 of the screen assembly 10 provided in this application is made of SUS303 stainless steel, and the guide 300 is made of duplex stainless steel, serving as the test group. The support of the screen assembly provided in the control group is made of aluminum alloy, and the guide is made of stamped iron. A force load of 100N is applied to both the test group and the control group.

[0107] The test results showed that, in the control group, the displacement of the guide rail along the direction of the applied force F was 13mm-24mm within the range of lever arm L of 150mm-300mm. In the test group, the displacement of the guide rail 210 along the direction of the applied force F was 5mm-15mm within the range of lever arm L of 150mm-300mm.

[0108] Therefore, it can be concluded that the displacement of the guide rail 210 of the curtain assembly 10 described in this application is significantly smaller than that of the guide rail of a conventional curtain assembly. In other words, the curtain assembly 10 described in this application is less prone to bending deformation and local breakage when subjected to external force caused by accidental touch by passengers, which significantly improves the stability of the device.

[0109] In addition, according to the formula w=FL for calculating the deflection of the free end of a cantilever beam (one end fixed, one end free), 3 / 3EI (w is deflection, in mm; F: concentrated load, in N; L is lever arm, in mm; E is elastic modulus, in MPa; I is moment of inertia of section, in mm) 4 This further corroborates the test results of the increased stiffness of the curtain assembly 10 provided in this application.

[0110] Based on the above formula analysis, F and L in the test of this application are used as quantitative terms. Since the curtain assembly 10 provided in this application adds a reinforcing part 320 to the guide 300 and reinforces the guide 300 and the bracket 100 with materials, EI increases and w decreases. The smaller w is, the greater the increase in rigidity of the curtain assembly 10.

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A retractable device, characterized in that, The retraction / extension device includes: support; Retraction and extension components; A guide member is rotatably connected to the bracket and used to guide the unfolding or closing of the retracting assembly. The guide member includes a body portion and a reinforcing portion. The reinforcing portion protrudes relative to the body portion along the thickness direction of the body portion. The reinforcing portion is configured such that when the guide member rotates relative to the bracket, the reinforcing portion and the bracket avoid each other.

2. The retracting device according to claim 1, characterized in that, The main body has a first surface on the side opposite to the bracket, and the surface of the reinforcing part has a first thickness between it and the first surface. The retractable assembly includes a guide rail, and the guide rail has a receiving cavity. The first thickness is configured to be less than the width of the receiving cavity.

3. The retracting device according to claim 2, characterized in that, The first thickness ranges from 6mm to 10mm.

4. The retracting device according to claim 1, characterized in that, The main body has a recessed portion on the side surface opposite to the reinforcing portion, and the recessed portion is used to accommodate the filler.

5. The retracting device according to claim 4, characterized in that, The sunken portion has a second surface, and the main body portion has a first surface on the side opposite to the bracket. The second surface has a sunken depth relative to the first surface, and the value of the sunken depth ranges from 0.5mm to 1mm.

6. The retracting device according to claim 1, characterized in that, The body portion has a second thickness, which ranges from 1.8 mm to 3.5 mm.

7. The retracting device according to claim 1, characterized in that, The main body is provided with a rotating part, which is rotatably connected to the bracket.

8. The retracting device according to claim 7, characterized in that, The rotating part includes a first positioning groove, and the thickness of the main body part corresponding to the position of the first positioning groove is greater than or equal to 2 mm.

9. The retracting device according to claim 7, characterized in that, The main body is provided with a reinforcing structure, and the bracket is provided with a corresponding guide groove. The reinforcing structure is movably disposed in the guide groove, and the reinforcing structure can move relative to the bracket along the trajectory of the guide groove.

10. The retracting device according to claim 9, characterized in that, The reinforcing structure includes a second positioning groove, and the thickness of the main body corresponding to the position of the second positioning groove is greater than or equal to 2 mm.

11. The retracting device according to claim 1, characterized in that, The surface of the guide member is provided with a weight-reducing groove.

12. The retracting device according to claim 11, characterized in that, The weight reduction groove includes a first groove and a second groove. The first groove is located on the side of the main body away from the reinforcing part, and the second groove is located on the side of the guide member facing the reinforcing part.

13. The retraction and extension device according to claim 12, characterized in that, The projections of the first groove and the second groove along the thickness direction of the guide are arranged to overlap each other.

14. The retracting device according to claim 13, characterized in that, In the thickness direction of the guide member, the first groove and the second groove have a common bottom wall, and the common bottom wall has a preset wall thickness, the value of which is greater than or equal to 1 mm.

15. The retracting device according to claim 1, characterized in that, The guide member is provided with a transmission part, the retraction assembly includes a first decorative piece, the bracket is provided with a clearance groove, the transmission part passes through the clearance groove and is connected to the first decorative piece.

16. The retracting device according to claim 1, characterized in that, The reinforcing part is provided with a guide groove, which passes through the guide member. The retracting assembly includes a guide rail, which is provided with a guide member. The guide member is movably disposed in the guide groove and can move relative to the guide member along the trajectory of the guide groove.

17. The retracting device according to claim 1, characterized in that, The thickness of the bracket ranges from 2mm to 5mm.

18. The retraction and extension device according to any one of claims 1-17, characterized in that, The guide component is configured as a one-piece cast steel molding.

19. A screen assembly comprising a retraction / extension device as described in any one of claims 1-18, characterized in that, The curtain assembly also includes a curtain mechanism for mounting on the retractable assembly when the retractable assembly is deployed.

20. A vehicle, characterized in that, The vehicle includes a retraction device as described in any one of claims 1-18, or the vehicle includes a curtain assembly as described in claim 19.

21. The vehicle according to claim 20, characterized in that, The vehicle also includes a counter component, to which the bracket is connected.

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