Sunshade curtain with composite structure

Abstract

The utility model discloses a sunshade curtain with a composite structure, which relates to the technical field of automobile accessories and comprises curtain cloth, a curtain rod, a curtain rod, a curtain rod, a curtain rod and a curtain rod, wherein one transverse end is fixed on a reel while the other transverse end is fixed on a tie rod; the reel is used for providing winding force for winding the curtain cloth; the transverse pull rod is used for driving the curtain cloth to unfold or wind; the flexible supporting edge strips are fixed along the edges of the two longitudinal sides of the curtain cloth, are used for being buckled in the guide rail grooves and have the flexible characteristic that the flexible supporting edge strips can be wound on the reel; the rigid framework is transversely distributed in the middle area of the curtain cloth, the two ends of the rigid framework are supported by the guide rails, and the rigid framework has arch radian to improve the Z-direction head space of the sunshade curtain. The flexible supporting edge strips are fixedly arranged along the edges of the two longitudinal sides of the curtain cloth and used for being buckled in the guide rail grooves, the curtain cloth can be tightened transversely, and light leakage and wrinkles are eliminated. The rigid framework with the arched radian is transversely distributed in the middle area of the curtain cloth, Z-direction supporting is provided when the curtain cloth is unfolded, the curtain cloth is jacked upwards, the head space is increased, and the head of a passenger is prevented from being collided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, in particular to a composite structure sunshade curtain. BACKGROUND

[0002] With the development of the automobile industry, the automobile sunshade curtain as an important functional component plays a key role in coping with strong light and high temperature environment. The existing automobile sunshade curtain effectively reduces the temperature in the car by blocking solar radiation, and has become an indispensable configuration component of modern cars.

[0003] The pursuit of panoramic view in the current automobile design field is increasingly enhanced, and the mainstream vehicle type generally adopts panoramic sky roof and panoramic sunroof design. In theory, the larger the size of the sunroof opening, the stronger the outside experience and the perception of technology of the driver and passenger, which makes the research and development of the size of the sunroof opening in the industry show a continuous expansion trend. However, the traditional sunshade curtain structure faces significant technical bottlenecks in large stroke operation conditions: the curtain body collapses during the unfolding process, resulting in a decrease in the effective sunshade area; the curtain surface wrinkle problem affects the visual aesthetics; the gap between the sunshade curtain edge and the guide rail causes light leakage defects. Especially worth noting is that the curtain body collapse will compress the head space in the car, not only causing the risk of the passenger's head touching, but also affecting the driving comfort due to the reduced field of view height.

[0004] The above technical contradiction is more sensitive in the field of new energy vehicles. In order to meet the layout requirements of the battery pack, the floor of new energy vehicles is generally raised, which directly leads to a decrease of 100-150mm in the net height of the car compared with traditional fuel vehicles. Under this constraint condition, the existing sunshade curtain structure cannot meet the basic requirements of the head space due to the collapse of the unfolded curtain beyond the design allowable range, resulting in the forced abandonment of the sunshade curtain configuration in most new energy vehicle models (especially new energy sedans with more cramped head space). Although there are some small sunshade curtain products in the existing solutions, their effective sunshade area is less than 40% of the full-size sunroof, which seriously weakens the field of view advantage of the panoramic sunroof, and forms a significant contradiction with the core demand of users for panoramic visual experience. This technical dilemma has become an important bottleneck restricting the development of panoramic sunroof technology in new energy vehicles, and needs to be broken through by structural innovation. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a composite structure sunshade curtain to solve the problems existing in the prior art and avoid the phenomena of curtain body collapse leading to a decrease in head space and light leakage caused by the gap between the curtain cloth edge and the guide rail.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0007] A composite structure sunshade curtain, characterized in that it comprises:

[0008] A curtain fabric is fixed to the reel at one end and to the traverse rod at the other end;

[0009] A reel is provided to provide a winding force for winding the curtain fabric;

[0010] A traverse rod is provided to drive the curtain fabric to be unwound or wound;

[0011] Flexible support edges are fixed to the longitudinal edges of the curtain fabric to be clamped in the guide rail slots and have a flexible property that can be wound on the reel;

[0012] A rigid skeleton is distributed transversely in the middle region of the curtain fabric and is supported by the guide rail at both ends. The rigid skeleton has an arched curvature to lift the head space of the sunshade curtain Z.

[0013] In an exemplary embodiment, the arched curvature of the rigid skeleton can be flattened on the surface of the reel when winding, and restored to arch when unwinding to support the Z-space of the curtain fabric.

[0014] In an exemplary embodiment, the flexible support edges are fixed to the longitudinal edges of the curtain fabric by sewing, ultrasonic welding or gluing process.

[0015] In an exemplary embodiment, openings are provided at the connection between the curtain fabric and the axial ends of the rigid skeleton to release the stress at the connection position.

[0016] In an exemplary embodiment, the traverse rod is driven by a motor or manually operated to control the unwinding and winding of the curtain fabric.

[0017] In an exemplary embodiment, a spring pre-tightening mechanism is provided at one end of the reel to maintain the tensioned state of the curtain fabric.

[0018] In an exemplary embodiment, the rigid skeleton is a hollow structure with a notch in the axial direction, and the notch faces one side surface of the curtain fabric; the other side surface of the curtain fabric is provided with a fillet, the fillet is accommodated inside the hollow structure, the notch is used for the curtain fabric to pass through, and the opening width of the notch is less than the diameter of the fillet.

[0019] In an exemplary embodiment, the curtain fabric is fixed to the traverse rod at one end, and a fillet is provided at the end of the traverse rod, the traverse rod is provided with a cavity with a notch in the axial direction, the fillet is accommodated inside the cavity, the notch is used for the curtain fabric to pass through, and the opening width of the notch is less than the diameter of the fillet.

[0020] In an exemplary embodiment, the fillet is fixedly connected with the curtain fabric by sewing, ultrasonic welding or gluing process.

[0021] The utility model discloses relative to prior art has obtained following technical effect:

[0022] Through the flexible support edge strip of fixed setting along the longitudinal direction both sides edge of curtain cloth, be used for buckling in the guide rail groove, can be transversely tight curtain cloth, eliminate the light leakage and the wrinkle.

[0023] Through the rigid skeleton of transverse distribution with the arch radian in the middle area of curtain cloth, provide Z -direction support when curtain cloth is unfolded, lift curtain cloth upward, promote the head space, avoid the passenger to hit the head. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0025] Figure 1 The structure diagram of the composite structure sunshade curtain disclosed in a specific embodiment of the utility model is shown in the drawings.

[0026] Figure 2 For Figure 1 The top view is shown in the drawings.

[0027] Figure 3 For Figure 1 The structure diagram of the spool in the drawings.

[0028] Figure 4 For Figure 1 The structure diagram of the horizontal pull rod in the drawings.

[0029] Figure 5 For Figure 4 The enlarged view of B part in the drawings.

[0030] Figure 6 The cooperation relationship diagram of the flexible support edge strip and guide rail is shown in the drawings.

[0031] Figure 7 For Figure 1 The structure diagram of the rigid skeleton in the drawings.

[0032] Figure 8 For Figure 7 The enlarged view of C part in the drawings.

[0033] Figure 9 For Figure 2 The enlarged view of A part in the drawings.

[0034] Wherein, 1, curtain cloth; 2, reel; 3, cross pull rod; 4, flexible support edge strip; 5, rigid skeleton; 6, opening; 7, first gap; 8, fillet; 9, guide rail; 10, second gap. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, and persons skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the description. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by persons skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] The utility model discloses a kind of composite structure sunshade curtain, to solve the problems existing in prior art, avoid the phenomenon that the head space is reduced and curtain cloth edge and guide rail cooperation gap produce light leakage caused by curtain body down.

[0037] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0038] Please refer to Figures 1 to 9 The embodiment provides a kind of composite structure sunshade curtain, including curtain cloth 1, the one end of curtain cloth 1 is fixed in reel 2, the other end of transverse is fixed in cross pull rod 3;Reel 2 is used to provide the winding force of winding curtain cloth 1, and cross pull rod 3 is used to drive curtain cloth 1 to unfold or wind.

[0039] Flexible support edge strip 4 is fixedly arranged along the longitudinal two side edges of curtain cloth 1, with flexible characteristics that can be wound on reel 2. Flexible support edge strip 4 is used to be buckled in the guide rail groove of guide rail 9, and can be transversely tightened curtain cloth 1, to eliminate light leakage and wrinkle.

[0040] Rigid skeleton 5 is distributed in the middle region of curtain cloth 1 transversely, and the two ends of rigid skeleton 5 are supported by guide rail 9. Rigid skeleton 5 has an arch shape to improve the head space of sunshade curtain Z. The arch shape of rigid skeleton 5 provides Z-direction support when unfolded, and can lift curtain cloth 1 upwards, to improve the head space by 20-30mm, to avoid the head of the occupant.

[0041] Specifically, the one end of curtain cloth 1 can be fixed on the surface of reel 2 by high-strength adhesive (such as polyurethane adhesive) or hot pressing process. One end of reel 2 is provided with an end cover, and the other end is provided with a connecting shaft. The end cover is connected with reel 2 in a threaded connection manner, which is convenient for disassembly. The connecting shaft is used to connect a motor or a hand wheel, so that manual driving or motor driving can be set according to requirements, to realize winding.

[0042] The specific structure of the reel 2 can also adopt another invention patent with the same applicant and inventor of the present application, entitled "a car sunshade curtain reel 2 assembly with stop-on-pull function", application number "202310289028.0", which will not be described here.

[0043] The other end of the curtain fabric 1 is fixed to the cross rod 3 through the batten 8, and the cross rod 3 is provided with a cavity with a first notch 7, which is arranged along the axial direction of the cross rod 3. The batten 8 is combined with the curtain fabric 1 by means of adhesive process, ultrasonic welding process or pressing process, and then embedded in the cavity of the cross rod 3. The batten 8 is accommodated in the cavity, and the first notch 7 is used for the curtain fabric 1 to pass through, and the opening 6 of the first notch 7 is smaller than the diameter of the batten 8, which is locked by elastic deformation to prevent the batten 8 from coming out (see Figure 5 ). The embedded connection of the batten 8 and the cross rod 3 provides high mechanical strength, which can prevent the curtain fabric 1 from tearing in frequent winding.

[0044] The flexible support edge 4 is fixed along the longitudinal two side edges of the curtain fabric 1, and the fixing method can be: 1) directly sewn or ultrasonically welded to the curtain fabric 1, or bonded to the curtain fabric 1 by adhesive products; or 2) the flexible support edge 4 is first bonded to the curtain fabric 1 by double-sided tape, and then reinforced by sewing or ultrasonic welding; or 3) the flexible support edge 4 is first sewn to the cloth strip (or ultrasonically welded to the cloth strip, or bonded to the cloth strip by adhesive products), and then the cloth strip is sewn to the curtain fabric 1.

[0045] The material of the flexible support edge 4 can be polyester fiber reinforced TPU (thermoplastic polyurethane), which has flexibility and tensile resistance. The end of the flexible support edge 4 can be designed as a "V" shaped buckle (see Figure 6 ), which is in sliding cooperation with the guide rail groove, so that the flexible support edge 4 cannot come out of the guide rail groove, and the curtain fabric 1 is tightly stretched transversely. The "V" shaped buckle of the flexible support edge 4 is in sliding cooperation with the guide rail, which reduces the friction resistance, and at the same time, the curtain fabric 1 is tightly stretched transversely, eliminating light leakage and wrinkles.

[0046] The rigid skeleton 5 is transversely distributed in the middle region of the curtain fabric 1, and the two ends are supported by the guide rail 9. The arch of the rigid skeleton 5 can be flattened on the surface of the reel 2 when winding, and restored to arch shape to support the Z direction space of the curtain fabric 1 when unfolding.

[0047] The rigid skeleton 5 can be made of aluminum alloy or carbon fiber composite material, and the cross section is a hollow structure. A second notch 10 is formed in the hollow cavity along the axial direction, and the second notch 10 faces the one side surface of the curtain 1. The curtain 1 is connected with the rigid skeleton 5 through the fillet 8, and the fillet 8 is arranged on the other side surface of the curtain 1. The fillet 8 is accommodated in the hollow structure, and the second notch 10 is used for the curtain 1 to pass through. The diameter of the fillet 8 is slightly larger than the width of the second notch 10, and the fillet 8 can be pressed into the hollow cavity through a pressing process. After the elastic deformation of the second notch 10, the second notch 10 rebounds to form a mechanical locking (see Figure 8 ). The design of the hollow structure of the rigid skeleton 5 and the second notch 10 can firmly fix the fillet 8, and can also reduce the weight of the rigid skeleton 5.

[0048] At the connection between the curtain 1 and the axial ends of the rigid skeleton 5, an opening 6 with a length of 5-10 mm is cut along the longitudinal direction of the curtain 1 (see Figure 9 ). The direction of the opening 6 is perpendicular to the axial direction of the rigid skeleton 5. The opening 6 allows the curtain 1 to locally deform when it is rolled up, and releases the stress generated by the rigid skeleton 5. The setting of the stress release opening 6 reduces the material fatigue at the connection between the curtain 1 and the axial ends of the rigid skeleton 5, and prolongs the service life of the curtain 1.

[0049] The cross rod 3 can control the unfolding and rolling up of the curtain 1 through motor driving or manual operation:

[0050] Motor driving mode: The motor assembly is installed at the end of the cross rod 3. The cross rod 3 is fixedly provided with a first gear and a second gear at one end close to the one side guide rail 9. The motor assembly is in transmission connection with the first gear through a synchronous belt or an output gear. The surface of the guide rail 9 is provided with a rack structure engaged with the second gear. When the motor driving gear rotates, the cross rod 3 is driven to move along the guide rail 9, and the stable unfolding of the curtain 1 is realized. The motor driving mode is suitable for high-end vehicles, and provides an intelligent operation experience.

[0051] Manual operation mode: The cross rod 3 is provided with a pull handle or a non-slip pattern on the outer surface. The user drives the curtain 1 to move by manually pushing and pulling the cross rod 3. The manual mode simplifies the structure and reduces the cost, and is suitable for economy type vehicles. The damping mechanism improves the safety and prevents the damage of the parts caused by rapid rolling up.

[0052] The fillet 8 is a key component for connecting the curtain 1 and the rigid skeleton 5 and the cross rod 3. The fixing mode of the fillet 8 can be:

[0053] Gluing process: epoxy resin glue is coated on the surface of the fillet 8. After the fillet 8 is bonded with the curtain 1, pressure curing is carried out, which is suitable for curved surfaces or complex structures;

[0054] Ultrasonic welding: for high-strength polyester curtain 1, the fillet 8 and the curtain 1 are locally fused and combined through an ultrasonic welding machine to form a seamless connection, avoiding the aging problem of the adhesive;

[0055] Pressing process: using a special press to press the insert 8 with the cord fabric 1, while embedding the cavity of the rigid skeleton 5 or the cross bar 3, to ensure that the connection is smooth without protrusion.

[0056] The gluing process is suitable for curved surfaces or complex structures, the ultrasonic welding process is environmentally friendly and efficient, and there is no chemical residue, the pressing process ensures the precise matching of the insert 8 with the skeleton and the cross bar 3, and the diversified process adapts to different materials and production needs.

[0057] The composite sunshade curtain of the utility model realizes technical breakthrough through the following core design:

[0058] Three-dimensional support system: the transverse flexible support edge 4 solves the Y direction relaxation, the longitudinal rigid skeleton 5 improves the Z direction space, and the reel 2 and the cross bar 3 are linked to ensure the X direction tightness;

[0059] Modular connection mode: the mechanical locking design of the insert 8 and the cavity and the first gap 7 and the second gap 10 takes into account the strength and maintainability;

[0060] Adaptability optimization: the arched camber and the winding and flattening characteristics of the rigid skeleton 5 perfectly adapt to the low head space demand of new energy vehicles.

[0061] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0062] In the description of the utility model, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] If the utility model discloses or involves mutually fixed connection's component or structural member, then, except another declaration, fixed connection can be understood as: the fixed connection of detachable (for example uses bolt or screw connection), also can be understood as: the fixed connection of undetachable (for example riveting, welding), of course, mutually fixed connection can also be replaced by integral structure (for example using casting process integral forming manufacture) (obviously can not adopt integral forming process except).

[0064] In addition, the terms used to represent the position relationship or shape in any of the technical solutions disclosed in the utility model include the approximate, similar or close state or shape, unless otherwise stated.

[0065] Any component provided by the utility model can be assembled by multiple individual components or manufactured by integral forming process.

[0066] It should be understood that the structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not limit the implementation conditions of the utility model, so they do not have technical substantive significance.

[0067] It should be further pointed out that the same reference signs in the embodiments of the present application represent the same component or the same part.

[0068] Any adaptive change according to actual needs is within the protection scope of the utility model.

[0069] It should be pointed out that for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0070] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A composite type sunshade curtain, characterized by, It comprises: a curtain cloth (1) fixed at one end of the transverse direction on a winding shaft (2) and at the other end on a transverse pull rod (3); the winding shaft (2) for providing a winding force for winding the curtain cloth (1); the transverse pull rod (3) for driving the curtain cloth (1) to be unwound or wound; a flexible support edge strip (4) fixed along the longitudinal edges of the curtain cloth (1) for buckling in the guide rail groove and having a flexible property that can be wound on the winding shaft (2); a rigid skeleton (5) distributed in the middle region of the curtain cloth (1) in the transverse direction and supported at both ends by the guide rail, the rigid skeleton (5) having an arch shape to lift the head space of the sunshade curtain Z.

2. The composite type solar screen according to claim 1, characterized in that: The arch shape of the rigid skeleton (5) can be flattened on the surface of the winding shaft (2) when winding, and restored to arch shape to support the Z-direction space of the curtain cloth (1) when unwinding.

3. The composite solar screen according to claim 1, wherein: The flexible support edge strip (4) is fixed to the longitudinal edges of the curtain cloth (1) by sewing, ultrasonic welding or adhesive process.

4. The composite solar screen according to claim 1, wherein: The connection between the curtain cloth (1) and the axial ends of the rigid skeleton (5) is provided with an opening (6) for releasing the stress at the connection position.

5. The composite solar screen according to claim 1, wherein: The transverse pull rod (3) is driven by a motor or manually operated to control the unwinding and winding of the curtain cloth (1).

6. The composite solar screen according to claim 1, wherein: One end of the winding shaft (2) is provided with a spring pre-tightening mechanism for maintaining the tensioned state of the curtain cloth (1).

7. The composite solar screen of any of claims 1-6, wherein: The rigid skeleton (5) is a hollow structure with a notch in the axial direction, and the notch faces one side surface of the curtain cloth (1); the other side surface of the curtain cloth (1) is provided with a fillet (8) which is accommodated in the hollow structure, the notch is used for the curtain cloth (1) to pass through, and the opening width of the notch is less than the diameter of the fillet (8).

8. The composite overhang according to claim 7, wherein: The fillet (8) is fixedly connected with the curtain cloth (1) by sewing, ultrasonic welding or adhesive process.

9. The composite solar screen of any of claims 1-6, wherein: One end of the curtain cloth (1) fixed to the transverse pull rod (3) is provided with a fillet (8), the transverse pull rod (3) is provided with a cavity with a notch, the notch is arranged in the axial direction of the transverse pull rod (3), the fillet (8) is accommodated in the cavity, the notch is used for the curtain cloth (1) to pass through, and the opening width of the notch is less than the diameter of the fillet (8).

10. The composite solar screen according to claim 9, wherein: The fillet (8) is fixedly connected with the curtain cloth (1) by sewing, ultrasonic welding or adhesive process.

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