Folding structure of convertible roof and convertible car having the same

CN122645840APending Publication Date: 2026-08-28FUGU TIMES (NANJING) AUTOMOBILE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202611073629.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-17
Publication Date
2026-08-28

AI Technical Summary

Technical Problem

[0002]根据汽车的市场环境需求,现有很多种敞篷汽车,能够对汽车车顶进行折叠收纳,拆卸安装工作量大,导致使用不便

Benefits of technology

[0013] The beneficial effects of this invention are as follows: By setting up a fixed seat, a roof assembly, a crossbeam assembly, and a soft top structure; the fixed seat is located at the connection point between the trunk and the vehicle body near the middle of the vehicle body, serving as a fixing component to stabilize the entire structure; the roof assembly is a curved rectangular structure, with one end foldable and connected to the top of the fixed seat, forming the roof; the crossbeam assembly is a rod-shaped structure located on top of the roof assembly, allowing the roof assembly to fold along with it, cooperating with the roof assembly to support the soft top structure; the roof assembly is connected to a hydraulic pump inside the vehicle, allowing it to fold towards the trunk along with the crossbeam assembly and be located inside the trunk, and when unfolded, the roof assembly forms a roof frame with the crossbeam assembly; the soft top structure is laid on the roof frame, providing a covering function and folding along with the roof assembly. With the above settings, the roof assembly can fold along the preset path with the soft top structure. The overall components are fewer, and the folded thickness is thinner and the folded volume is smaller. The mounting position is higher than the bottom of the trunk cavity, so that when the folded roof is placed in the trunk, it is placed at an angle, further reducing the area occupied at the bottom of the trunk cavity.

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Abstract

The application relates to a folding structure of a convertible roof, which comprises a fixing base, a roof assembly, a crossbeam assembly and a soft roof structure; the fixing base is arranged at a position where a trunk of a vehicle is connected to a vehicle body near one end of the middle part of the vehicle body; one end of the roof assembly is foldably connected to the top of the fixing base; the crossbeam assembly is arranged on the top of the roof assembly, and the roof assembly can be folded with the crossbeam assembly; wherein the roof assembly is connected to a hydraulic pump in the vehicle interior, the roof assembly can be folded with the crossbeam assembly and the rear window curtain assembly to the direction of the trunk and located in the trunk, and the roof assembly forms a roof framework with the crossbeam assembly after being unfolded; the soft roof structure is arranged on the roof framework and has a shielding effect and can be folded with the roof assembly. The above arrangement solves the technical problem that the traditional stacking type folding needs more linkage folding structure components, which leads to large dismounting and mounting workload and inconvenient use.
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Description

Technical Field

[0001] This invention relates to the field of automotive technology, and more particularly to a folding structure for a convertible roof and a convertible car having the same. Background Technology

[0002] Based on the market demand for automobiles, there are many types of convertible cars that can fold down their roofs for storage. However, the disassembly and installation work is extensive, leading to inconvenience in use. Summary of the Invention

[0003] In view of this, this application provides a folding structure for a convertible roof, including a fixing seat, a roof assembly, a crossbeam assembly, and a soft top structure; the fixing seat is located at the connection point between the car's trunk and the vehicle body near the center of the vehicle body; the roof assembly is a curved rectangular structure, one end of which is foldably connected to the top of the fixing seat; the crossbeam assembly is a rod-shaped structure located on top of the roof assembly, and the roof assembly can fold along with the crossbeam assembly; wherein, the roof assembly is connected to a hydraulic pump inside the car, and the roof assembly, along with the crossbeam assembly and the rear curtain assembly, can fold towards the trunk and be located inside the trunk, and when unfolded, the roof assembly forms a roof frame with the crossbeam assembly; the soft top structure is laid on the roof frame, has a shielding function, and can fold together with the roof assembly.

[0004] In one possible implementation, the roof assembly includes a first folding body, a second folding body, and a third folding body connected sequentially from the trunk to the front of the vehicle; One end of the first folding body is rotatably connected to the fixed base, the other end of the first folding body is rotatably connected to one end of the second folding body, the other end of the second folding body is rotatably connected to one end of the third folding body, and the other end of the third folding body is detachably connected to the front of the vehicle.

[0005] In one possible implementation, the third folding body is rotated and folded toward the top of the second folding body, the second folding body is rotated and folded toward the top of the third folding body, and the third folding body rotates along the fixed seat toward the interior of the trunk.

[0006] In one possible implementation, the rear curtain assembly is a curved rod-shaped structure, with both ends of the rear curtain assembly fixedly connected to the first folding body and located on the inner side of the soft ceiling structure.

[0007] In one possible implementation, the rear curtain assembly and the mounting bracket form an angle of 45 degrees.

[0008] In one possible implementation, the first fold body, the second fold body, and the third fold body all have a preset curvature, and the curvature of the first fold body is greater than that of the second fold body.

[0009] In one possible implementation, the crossbeam assembly includes a first crossbeam member, a second crossbeam member, and a third crossbeam member; the first and second crossbeam members are both disposed on the first folding body, and the first crossbeam member is disposed parallel to the rear curtain assembly; the third crossbeam member is disposed on the third folding body, and the second crossbeam member is disposed parallel to the third crossbeam member.

[0010] In one possible implementation, the length of the projected area of ​​the folded roof assembly is one-third the length of the projected area of ​​the trunk.

[0011] A convertible car, wherein the roof of the convertible car is a folding structure of the convertible roof described above, and the trunk lid of the convertible car is rotatably connected to the body near the rear end of the car body, and can be opened from the fixed seat position to the rear of the car body.

[0012] In one possible implementation, a drive assembly and a movable connecting rod are provided inside the trunk, the bottom end of the movable connecting rod being connected to the drive assembly, and the top end of the movable connecting rod being connected to the trunk lid.

[0013] The beneficial effects of this invention are as follows: By setting up a fixed seat, a roof assembly, a crossbeam assembly, and a soft top structure; the fixed seat is located at the connection point between the trunk and the vehicle body near the middle of the vehicle body, serving as a fixing component to stabilize the entire structure; the roof assembly is a curved rectangular structure, with one end foldable and connected to the top of the fixed seat, forming the roof; the crossbeam assembly is a rod-shaped structure located on top of the roof assembly, allowing the roof assembly to fold along with it, cooperating with the roof assembly to support the soft top structure; the roof assembly is connected to a hydraulic pump inside the vehicle, allowing it to fold towards the trunk along with the crossbeam assembly and be located inside the trunk, and when unfolded, the roof assembly forms a roof frame with the crossbeam assembly; the soft top structure is laid on the roof frame, providing a covering function and folding along with the roof assembly. With the above settings, the roof assembly can fold along the preset path with the soft top structure. The overall components are fewer, and the folded thickness is thinner and the folded volume is smaller. The mounting position is higher than the bottom of the trunk cavity, so that when the folded roof is placed in the trunk, it is placed at an angle, further reducing the area occupied at the bottom of the trunk cavity. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the usage of Embodiment 2; Figure 2 This is a detailed structural diagram of Embodiment 2; Figure 3 This is a detailed structural diagram of Embodiment 1; Figure 4 This is a detailed structural diagram of the drive assembly and the movable connecting rod of this application; Figure 5 This is an assembly drawing of the drive assembly and movable connecting rod of this application. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols 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 intended to explain the invention, and should not be construed as limiting the invention.

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention or to simplify the description, 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. Therefore, they should not be construed as limitations on this invention.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," "hinging," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] Example 1 like Figures 1 to 5 As shown, the folding structure of the convertible roof includes a fixed base 100, a roof assembly 200, a crossbeam assembly 300, and a soft top structure 500. The fixed base 100 is located at the connection point between the car's trunk and the vehicle body near the middle of the trunk. The roof assembly 200 is a curved rectangular structure, with one end foldable and connected to the top of the fixed base 100. The crossbeam assembly 300 is a rod-shaped structure located on top of the roof assembly 200, allowing the roof assembly 200 to fold along with the crossbeam assembly 300. The roof assembly 200 is connected to a hydraulic pump inside the car, allowing it to fold towards the trunk along with the crossbeam assembly 300 and be located inside the trunk. When unfolded, the roof assembly 200 and the crossbeam assembly 300 form the roof frame. The soft top structure 500 is laid on the roof frame, providing a covering function, and can also fold along with the roof assembly 200.

[0021] Specifically, the folding structure of the convertible roof mainly includes a fixing seat 100, a roof assembly 200, a crossbeam assembly 300, and a soft top structure 500. The fixing seat 100 is a plate-like structure, fixed to the trunk near the center of the vehicle body. The fixing seat 100 is a fixed component of the entire structure, and its height is higher than the bottom of the trunk compartment. The roof assembly 200 and the crossbeam assembly 300 are designed to work together to form the vehicle roof. Furthermore, the roof assembly 200 is a curved rectangular frame structure. One end of the roof assembly 200 is rotatably connected to the fixing seat 100, and the other end is detachably connected to the top of the vehicle's front windshield 700. The crossbeam assembly 300 and the rear curtain assembly 400 are located at the top of the roof lining. It should be noted that the crossbeam assembly 300 is on top of the roof lining assembly 200 and connects both sides of the roof lining assembly 200 to form the car roof. A soft top structure 500 is provided to make the overall structure more complete. The soft top structure 500 is equivalent to a roof cover, laid on the roof frame, providing a covering function, and can be folded together with the roof lining assembly 200. It should also be noted that the other end of the roof lining assembly 200 can be folded towards the trunk, and then located within the trunk cavity.

[0022] The roof assembly 200 is connected to a hydraulic pump inside the vehicle. The roof assembly 200, along with the crossbeam assembly 300, can fold towards the trunk and be positioned inside the trunk. When unfolded, the roof assembly 200 and the crossbeam assembly 300 form a roof frame, with the soft top structure 500 laid on the roof frame. Through this configuration, the roof assembly 200 can fold along a predetermined path with the soft top structure 500. The overall design has fewer components, a thinner folded surface, and a smaller overall volume. The mounting base 100 is positioned higher than the bottom of the trunk cavity, allowing the folded roof to be placed at an angle inside the trunk, further minimizing its footprint at the bottom of the trunk cavity. Furthermore, its automatic folding mechanism facilitates easy use.

[0023] In one possible implementation, the roof assembly 200 includes a first folding body 210, a second folding body 220, and a third folding body 230 connected sequentially from the trunk to the front of the vehicle. One end of the first folding body 210 is rotatably connected to a mounting base 100, the other end of the first folding body 210 is rotatably connected to one end of the second folding body 220, the other end of the second folding body 220 is rotatably connected to one end of the third folding body 230, and the other end of the third folding body 230 is detachably connected to the front of the vehicle. The third folding body 230 rotates and folds towards the top of the second folding body 220, the second folding body 220 rotates and folds towards the top of the third folding body 230, and the third folding body 230 rotates along the mounting base 100 into the trunk. The first folding body 210, the second folding body 220, and the third folding body 230 all have a preset curvature, and the curvature of the first folding body 210 is greater than the curvature of the second folding body 220.

[0024] Specifically, such as Figure 3 As shown, the roof assembly 200 mainly includes a first folding body 210, a second folding body 220, and a third folding body 230 connected sequentially from the trunk to the front of the vehicle. The first folding body 210 is a rectangular open-ended structure with a preset curvature, and is rotatably connected to the mounting base 100. The second folding body 220 is also a rectangular open-ended structure, and is rotatably connected to the first folding body 210. The third folding body 230 is a hollow rectangular structure, with one end rotatably connected to the other end of the second folding body 220, and the other end detachably connected to the vehicle's front window 700. It should be noted that the third folding body 230 and the second folding body 220, the second folding body and the first folding body 210, and the first folding body 210 and the mounting base 100 are all connected by pins. It should be noted that the preset curvature of the first folding body 210, the second folding body 220, and the third folding body 230 can be the same or different. The curvature is determined according to the desired shape of the roof. It can be processed and manufactured according to specific car models and roofs.

[0025] Furthermore, such as Figures 1 to 3As shown, the curvature of the first folding body 210 is greater than that of the second folding body 220, and the curvature of the third folding body 230 is the same as that of the second folding body 220. The folding path is as follows: the other end of the third folding body 230 faces the trunk, and after rotating one end of the third folding body 230 clockwise by a preset angle, it is located on top of the second folding body 220. The other end of the second folding body 220 faces the trunk, and after rotating one end of the second folding body 220 clockwise by a preset angle, it presents a rhombus shape when viewed from the side. Then, one end of the first folding body 210 rotates clockwise, and the second folding body 220 and the third folding body 230 rotate clockwise and enter the trunk cavity.

[0026] In one possible implementation, the rear curtain assembly 400 is a curved rod-like structure, with both ends of the rear curtain assembly 400 fixedly connected to the first folding body and located on the inner side of the soft top structure. Normally, a car has a rear window; the rear curtain assembly 400 and the roof assembly 200 form the roof portion of the car's rear window, including the rear window, making the overall structure more complete.

[0027] In one feasible configuration, the rear curtain assembly 400 forms an angle of 45 degrees with the horizontal plane. This arrangement allows the frame formed by the rear curtain assembly 400 and the headliner assembly 200 to better conform to the shape of the rear window of the oversized vehicle.

[0028] In one possible implementation, the crossbeam assembly 300 includes a first crossbeam member 310, a second crossbeam member 320, and a third crossbeam member 330; both the first crossbeam member 310 and the second crossbeam member 320 are disposed on the first folding body 210, and the first crossbeam member 310 is disposed parallel to the rear curtain assembly 400; the third crossbeam member 330 is disposed on the third folding body 230, and the second crossbeam member 320 is disposed parallel to the third crossbeam member 330.

[0029] Specifically, such as Figure 3 The crossbeam assembly 300 is provided in multiple quantities. Taking this embodiment as an example, the crossbeam assembly 300 includes a first crossbeam 310, a second crossbeam 320, and a third crossbeam 330. The second crossbeam 320 and the third crossbeam 330 are both rectangular hollow structures with openings, and the openings of the second crossbeam 320 and the third crossbeam 330 face towards the bottom of the vehicle. Furthermore, the first crossbeam 310 is located on top of the first folding body 210 and is parallel to the rear curtain assembly. Through this arrangement, and the cooperation of the first folding body 210, the second folding body 220, and the third folding body 230, and considering the required number of folds, folding can be completed while minimizing the number of parts. Furthermore, reducing the number of parts and creating a more regular structure reduces the complexity and error rate of production assembly, improving the overall vehicle assembly quality and production efficiency. In one feasible implementation, the length of the projected area of ​​the folded roof assembly 200 is one-third the length of the projected area of ​​the trunk. Since the mounting bracket 100 is positioned above the bottom of the trunk cavity, the folded roof assembly can be placed diagonally within the trunk cavity. Furthermore, the folded roof assembly 200 has a relatively thin overall structure, occupying less space in the trunk.

[0030] More specifically, a pressure strip 600 is also provided. The pressure strip 600 is an arc-shaped rod structure, and both sides of the pressure strip 600 are connected to the fixing base 100. It should be noted that the pressure strip 600 can also rotate relative to the fixing base 100. One end of the soft ceiling structure 500 is connected to the pressure strip 600, and the other end of the soft ceiling structure 500 is connected to the other end of the ceiling assembly 200. Both sides of the soft ceiling structure 500 are connected to both sides of the ceiling assembly 200, so that the soft ceiling structure 500 fully covers the ceiling assembly 200, the beam assembly 300 and the back curtain assembly 400.

[0031] Example 2 like Figures 1 to 3 As shown, a convertible car has a folding roof structure as described above, and the opening of the trunk faces the front of the car. A drive assembly 610 and a movable connecting rod 620 are provided inside the trunk. The bottom end of the movable connecting rod 620 is connected to the drive assembly 610, and the top end of the movable connecting rod 620 is connected to the trunk lid. There is a preset angle between the movable connecting rod 620 and the drive assembly 610, and the preset angle is no greater than 60 degrees.

[0032] A convertible car, wherein the roof of the convertible car is a folding mechanism of the convertible roof described above. It should be noted that the opening of the trunk of this application faces the front of the car. Furthermore, a drive assembly 610 and a movable connecting rod 620 are provided in the trunk cavity. The movable connecting rod 620 is telescopically connected to the drive assembly 610. The drive assembly 610 can control the extension and retraction of the movable connecting rod 620. The top end of the movable connecting rod 620 is connected to the trunk cover. The movable connecting rod 620 can move the rear shell downwards.

[0033] Furthermore, a connector 630 is provided on the movable connecting rod 620 and the trunk housing 800800 bracket. The connector 630 is rotatably connected to the top of the movable connecting rod 620. This arrangement allows the trunk lid to be opened or closed more smoothly when the movable connection is extended or retracted.

[0034] This system includes sensors and limiters, which are located inside the convertible's body. The sensors and limiters are connected to the vehicle's onboard system, which in turn is connected to a hydraulic pump. The hydraulic pump controls the opening and closing of the roof assembly 200. The sensors monitor the running trajectory to prevent collisions, the pins facilitate folding, and the limiters detect when folding is complete and close the trunk.

[0035] When this application is used, the vehicle system transmits a folding signal to the hydraulic pump according to the actual needs. At this time, the pressure strip with the canvas end first rotates counterclockwise at a preset angle. After the pressure strip leaves the trunk, the trunk lid opens through the drive assembly and the movable connecting rod. At the same time, the third folding body folds the top of the second folding body, and the second folding body folds slightly towards the top of the first folding body. Then, the first folding body, along with the second folding body, the third folding body, and the pressure strip, enters the trunk. Finally, the trunk lid is closed by pulling the drive assembly and the movable connecting rod.

[0036] With the above settings, this application achieves the following results: Space utilization: The unique "stacked" storage layout significantly reduces the horizontal projection area of ​​the storage bag compared to the traditional side-by-side folding method, freeing up more usable and orderly space in the trunk and directly improving the daily practicality of the vehicle.

[0037] Quiet and wear-free: The structure is stable after folding, and the parts fit together tightly, which fundamentally eliminates friction noise and fabric wear during driving.

[0038] Durable sealing: The robust linkage mechanism ensures that the canopy can accurately return to its original position every time it is deployed, maintaining excellent waterproof sealing performance over the long term.

[0039] Simplified control: A single drive source enables the linkage of multiple mechanisms, simplifying the circuit and control program.

[0040] Assembly optimization: Fewer parts and a more regular structure reduce the complexity and error rate of production assembly, thereby improving the overall vehicle assembly quality and production efficiency.

[0041] Experience optimization: The operation can be "one-click opening and closing", and the opening and closing process is quick and smooth, which greatly improves the convenience and comfort of driving and riding.

[0042] Easy to use: Simple one-button operation enhances driving comfort and practicality.

[0043] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A folding structure for a convertible roof, characterized in that, Includes mounting bases, ceiling components, beam components, and soft ceiling structure; The mounting bracket is located at the connection point between the trunk of the car and the car body, near the middle of the vehicle body. The canopy assembly is a rectangular structure with an arc, and one end of the canopy assembly is foldable and connected to the top of the fixing base; The crossbeam assembly is a rod-shaped structure and is located on top of the canopy assembly. The canopy assembly can be folded along with the crossbeam assembly. The roof assembly is connected to a hydraulic pump inside the vehicle. The roof assembly, along with the crossbeam assembly and the rear curtain assembly, can be folded towards the trunk and located inside the trunk. When unfolded, the roof assembly forms a roof frame with the crossbeam assembly. The soft top structure is laid on the roof frame, providing a covering function, and can be folded together with the roof assembly.

2. The folding structure of the convertible roof according to claim 1, characterized in that, The roof assembly includes a first folding body, a second folding body, and a third folding body connected sequentially from the trunk to the front of the vehicle; One end of the first folding body is rotatably connected to the fixed base, the other end of the first folding body is rotatably connected to one end of the second folding body, the other end of the second folding body is rotatably connected to one end of the third folding body, and the other end of the third folding body is detachably connected to the front of the vehicle.

3. The folding structure of the convertible roof according to claim 2, characterized in that, The third folding body rotates and folds towards the top of the second folding body, the second folding body rotates and folds towards the top of the third folding body, and the third folding body rotates along the fixed seat into the trunk.

4. The folding structure of the convertible roof according to claim 1, characterized in that, The rear curtain assembly is a rod-shaped structure with an arc, and both ends of the rear curtain assembly are fixedly connected to the first folding body, located on the inner side of the soft ceiling structure.

5. The folding structure of the convertible roof according to claim 4, characterized in that, The rear curtain assembly and the fixing seat form an angle of 45 degrees.

6. The folding structure of the convertible roof according to claim 3, characterized in that, The first folded body, the second folded body, and the third folded body all have a preset curvature, and the curvature of the first folded body is greater than that of the second folded body.

7. The folding structure of the convertible roof according to claim 6, characterized in that, The crossbeam assembly includes a first crossbeam member, a second crossbeam member, and a third crossbeam member; The first crossbeam and the second crossbeam are both mounted on the first folding body, and the first crossbeam is arranged parallel to the rear curtain assembly. The third crossbeam is disposed on the third folding body, and the second crossbeam is disposed parallel to the third crossbeam.

8. The folding structure of the convertible roof according to claim 1, characterized in that, The length of the projected area of ​​the folded roof assembly is one-third the length of the projected area of ​​the trunk.

9. A convertible car, characterized in that, The convertible car has a folding roof structure as described in any one of claims 1-8, and the trunk lid of the convertible car is rotatably connected to the car body near the rear end, and can be opened from the fixed seat position to the rear of the car body.

10. The convertible automobile according to claim 9, characterized in that, A drive assembly and a movable connecting rod are provided inside the trunk. The bottom end of the movable connecting rod is connected to the drive assembly, and the top end of the movable connecting rod is connected to the trunk lid.