Blind device attached to projection curtain device

Abstract

The utility model relates to a curtain device attached to a projection curtain device, which comprises a curtain component and a curtain driving unit, the curtain component is arranged on one side or two sides of a projection cloth curtain of the projection curtain device, a shielding cloth curtain of the curtain component can be unfolded and folded along with the projection cloth curtain, and when the projection cloth curtain is unfolded, the curtain driving unit drives the curtain component to rotate. The shielding curtain driving unit can independently drive the unfolded shielding cloth curtain to transversely move, stretch out and reset from the back side of the projection cloth curtain, so that when the projection cloth curtain of the motor vehicle projects an image, a user can select to generate the shielding cloth curtain for maintaining personal privacy on the side edge of the projection cloth curtain.

Description

Technical Field

[0001] This utility model relates to a projection curtain device, and more particularly to a projection curtain device that can be attached to a motor vehicle and provides privacy protection during use. Background Technology

[0002] Previously, the entertainment systems in motor vehicles used the dashboard display in front of the driver's seat as the image display screen. Due to the limitation of the display screen size, the rear passengers were far away from the dashboard display screen in front of the driver's seat, making it difficult to comfortably watch the entertainment images displayed on the dashboard display screen.

[0003] In recent years, the number of people engaging in leisure activities such as road trips and outdoor camping has increased, leading to higher demands on in-vehicle entertainment systems. Therefore, some have further developed the practice of installing projection curtain devices in motor vehicles, paired with small projectors, allowing connection to in-vehicle entertainment systems or external audio-visual playback systems. The enlarged projection curtain serves as the display screen for the projected images, enhancing the visual comfort of the in-vehicle entertainment system or external audio-visual playback system.

[0004] Generally, automotive projection screens combine a projection curtain with a curtain retraction mechanism. The retraction mechanism is installed under the roof, allowing the projection curtain to be opened and closed. While existing automotive projection screens do achieve the desired large display size and space-saving design when closed, the interior space of most motor vehicles is typically narrower at the top and wider at the bottom. To avoid interfering with passenger movement, current projection screens are usually located on the roof, and their length is shorter than the width of the interior space. Therefore, when the projection curtain is open, the interior space is open on both sides, lacking privacy. People watching videos inside the vehicle are easily seen by those outside, compromising privacy and making it difficult for passengers to comfortably watch videos inside the car. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a curtain device attached to a projection curtain device, which solves the problem that when the projection curtain device in a motor vehicle is opened to view the projected image, the left and right sides of the projection curtain are not covered, resulting in a lack of privacy.

[0006] The technical solution proposed by this utility model is: to provide a curtain device for attaching to a projection curtain device, which can be attached to a projection curtain device inside a motor vehicle. A projection curtain assembly in the projection curtain device has a projection curtain that can be operated to open and close, and has a base disposed at the top of the projection curtain and a curtain side panel disposed at the bottom of the projection curtain. The curtain device includes:

[0007] One or two sets of curtain assemblies are disposed on one or both sides of the projection curtain. The curtain assemblies are located on the back side of the projection curtain and connect the base and the curtain side panel. Each curtain assembly includes a curtain roller assembly and a shielding curtain that can be automatically rolled up and released by the curtain roller assembly. The shielding curtain can unfold and retract along with the projection curtain on the back side.

[0008] A curtain drive unit is disposed on the side of the base and connected to the curtain assembly, and is capable of driving each of the unfolded curtains to extend laterally from the back side of the projection curtain to create a curtain and return to its original position.

[0009] In the projection curtain device as described above, the bottom edge of the shielding curtain is connected to the shielding roller assembly, and can be automatically rolled up and released by the shielding roller assembly. The shielding roller assembly is movably mounted on the curtain side panel of the projection curtain device. The top edge of the shielding curtain is provided with a sliding member, which is movably mounted on the base. The shielding roller assembly is provided with a lower outer frame, which is movably mounted on the curtain side panel. The shielding drive unit is connected to the shielding roller assembly and the sliding member, and can drive the shielding assembly to extend and return laterally from the side of the projection curtain assembly.

[0010] In the projection curtain device as described above, the base is provided with an upper guide rail, and the curtain is slidably mounted on the upper guide rail of the base by means of the sliding member; the curtain side panel is provided with a lower guide rail, and the curtain roller assembly is slidably mounted on the lower guide rail of the curtain side panel by means of the lower outer frame.

[0011] In the projection curtain device attached to the above-described projection curtain device, the curtain drive unit is a pull-wire drive mechanism, which includes a motor, a drive wheel and a pull-wire assembly. The motor is combined with the drive wheel and is disposed on one side of the base. The pull-wire assembly connects the drive wheel, the sliding member and the lower outer frame. The motor can drive the curtain assembly to extend and return laterally from the side of the projection curtain assembly through the drive wheel and the pull-wire assembly.

[0012] In the curtain device attached to the projection curtain device as described above, the pull cord assembly includes multiple pull cords, and the drive wheel is connected in a configuration in which the multiple pull cords form a single loop.

[0013] In the curtain device attached to the projection curtain device as described above, the pull cord assembly further includes a tensioner connected to the pull cord and capable of maintaining the tension of the pull cord.

[0014] In the curtain device attached to the projection curtain device as described above, the pull cord assembly further includes one or more adjusters, through which the pull cord is connected and the length of the pull cord can be adjusted.

[0015] In the projection curtain device attached to the projection curtain device as described above, the top of the projection curtain of the projection curtain device is assembled on the base via a projection curtain roller, and the projection curtain assembly is operated to open and close the projection curtain by an electric drive unit mounted on the base in conjunction with a transmission assembly. The transmission assembly includes two linkage groups symmetrically arranged between the base and the curtain side panel; part of the pull cord of the pull cord assembly passes through the two linkage groups respectively.

[0016] In the curtain device attached to the projection curtain device as described above, the pull cord assembly further includes a tensioner and one or more adjusters. The tensioner is connected to the pull cord and is able to maintain the tension of the pull cord. The adjusters are connected to the pull cord and are able to adjust the length of the pull cord.

[0017] In the curtain device attached to the projection curtain device as described above, one or more wire components are provided on the linkage group to guide the pull wire through.

[0018] This utility model of a curtain device can be configured on a projection curtain device in a motor vehicle, and it can achieve the following beneficial effects:

[0019] 1. Providing privacy: The curtain device of this utility model is attached to the projection curtain device of a motor vehicle. While the projection curtain of the projection curtain device provides a large display screen for the projector, when the projection curtain is open, the shielding curtain of the curtain device, in addition to opening along with the back of the projection curtain, can also be driven to extend outward from the back of the open projection curtain to provide a privacy shielding curtain without affecting the display of the projection screen. This prevents people watching audio-visual content inside the vehicle from being seen by people outside the vehicle.

[0020] 2. Independent and free control of the shielding curtain: As mentioned above, the shielding curtain device of this utility model can be movably configured on the back side of the projection curtain device. While the projection curtain of the projection curtain device is operated to open and close, the shielding curtain of the shielding device is located on the back side of the projection curtain and can be operated to open and close along with the projection curtain, without affecting the display of the projection screen. When people are watching audio-visual content in the car and do not want to be seen by people outside the car, the user can drive the opened shielding curtain to move laterally from the back side of the projection curtain and return to its original position through the shielding curtain drive unit, so that the shielding curtain can be independently and freely controlled.

[0021] 3. Ease of Operation: As mentioned above, the curtain device of this utility model is movably configured on the back side of the projection curtain device. While the projection curtain of the projection curtain device is operated to open and close, the shielding curtain of the curtain device can also be operated to open and close along with the projection curtain on the back side. When the user needs to create a shielding screen on the side of the projection curtain, the user only needs to drive the opened shielding curtain to move laterally from the back side of the projection curtain through the curtain drive unit, and it can be driven to return to its original position independently. The shielding curtain can be operated to close upward along with the projection curtain. Therefore, the shielding device of this utility model has good ease of use and operation.

[0022] 4. Reduced space occupied by the device: As mentioned above, the curtain device of this utility model is movably configured on the back side of the projection curtain device. The curtain drive motor is assembled on the roof of the motor vehicle. When the projection curtain of the projection curtain device is operated to open and close, the shielding curtain of the curtain device can be located on the back side of the projection curtain and operated to open and close together with the projection curtain. When the projection curtain is open, the shielding curtain can be independently driven to move outward from the back side of the projection curtain to form a shielding curtain. When closing, the shielding curtain assembly is driven to close on the back side of the projection curtain assembly without exceeding the length of the projection curtain assembly, so that the curtain device attached to the projection curtain device can reduce the space occupied in the vehicle interior after closing.

[0023] The curtain drive unit in the curtain device of this utility model can be further selected as a pull-wire drive mechanism. The curtain assembly is moved laterally from the side of the projection curtain assembly and retracted by the pull-wire assembly driven by the electric motor and the drive wheel. The pull-wire assembly has the characteristics of being flexible and having transmission, so that the pull-wire assembly can drive the curtain assembly to move more smoothly and without interference.

[0024] Furthermore, the pull cord assembly can also utilize the systematic configuration structure of multiple pull cords forming a single loop, enabling it to easily control the forward and reverse rotation of the drive wheel driven by the motor. That is, the pull cord assembly can drive the curtain of the curtain assembly to move outward from the back side of the projection curtain and to retract. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the front view of an embodiment of the curtain device of this utility model, which is attached to a projection curtain device and generates a curtain screen on each of the left and right sides of the projection curtain.

[0026] Figure 2 yes Figure 1 The illustrated embodiment of the curtain device is attached to the projection curtain device and generates a curtain screen on both the left and right sides of the projection curtain, showing a three-dimensional view from the back side.

[0027] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0028] Figure 4 yes Figure 2 A three-dimensional schematic diagram after partial cross-section.

[0029] Figure 5 yes Figure 4 A partial sectional view of the upper part.

[0030] Figure 6 yes Figure 4 A partial sectional view of the lower part.

[0031] Figure 7 yes Figure 2 A plan view of the electric drive unit after removing the projection curtain device.

[0032] Figure 8 yes Figure 2 A partial 3D schematic diagram of the electric drive unit after the projection curtain device has been removed.

[0033] Figure 9 yes Figure 8 Enlarged view of a specific area.

[0034] Figure 10 yes Figure 9 A partial plan view of the housing of the curtain drive unit after the bottom cover has been removed.

[0035] Figure 11 yes Figure 2 A magnified 3D view of the lower section.

[0036] Figure 12This is a three-dimensional schematic diagram of an embodiment of a curtain device attached to a projection curtain device in the closed state.

[0037] Figure 13 yes Figure 12 A plan view.

[0038] Figure 14 This is a three-dimensional schematic diagram showing the projection curtain of the projection curtain device in an unfolded state, with the shielding curtain of the shielding device unfolded behind the projection curtain. Detailed Implementation

[0039] The following description, in conjunction with the accompanying drawings and embodiments of the present invention, further illustrates the technical solutions adopted by the present invention to achieve its intended purpose.

[0040] like Figure 1 As shown, this invention discloses an embodiment of the curtain device 2, which can be attached to a projection curtain device 1 installed inside a motor vehicle. The projection curtain device 1 can be an existing manual or electric projection curtain device, or it can be selected from... Figure 1 The illustrated motorized projection curtain device is not limited to this. Essentially, the projection curtain device 1 is a display device for providing a display screen for projected images. The projection curtain device includes a projection curtain assembly having a projection curtain operable to be opened and closed, with the projection curtain serving as the display screen for the projected image.

[0041] exist Figure 1 and Figure 2 In the disclosed embodiment of the projection curtain device 1, the projection curtain device 1 includes a base 10, a projection curtain assembly 20, an electric drive unit 30, and a transmission assembly 40. Wherein:

[0042] like Figure 1 and Figure 2 As shown, the base 10 can be installed on the roof of a motor vehicle. In this embodiment, the base 10 is installed on the bottom surface of the roof of the motor vehicle through a plurality of positioning components 101 provided on its top.

[0043] like Figure 1 and Figure 2As shown, the projection curtain assembly 20 is installed in the base 10 and includes a projection curtain roller assembly 21 and a projection curtain 22 that can be automatically rolled up and released by the projection curtain roller assembly 21. The two opposite sides (front and back sides) of the projection curtain 22 are a front and a back side, respectively, with the front side serving as the display screen for the projected image. In this embodiment, the projection curtain roller assembly 21 is installed in the base 10, the top edge of the projection curtain 22 is connected to the projection curtain roller assembly 21, and the bottom edge of the projection curtain 22 is provided with a curtain edge plate 23. The projection curtain 22 can be rolled upwards into the projection curtain roller assembly 21 and unfolded downwards. The projection curtain roller assembly 21 can be an existing product, and its specific structure will not be described in detail here.

[0044] like Figures 2 to 3 In the embodiment shown, the electric drive unit 30 is mounted on the base 10, and the transmission assembly 40 is mounted between the base 10 and the curtain side panel 23 and connected to the electric drive unit 30. The transmission assembly 40 can be a linkage group 41a, 41b, or a pull-wire transmission assembly or other similar transmission assembly 40, so that the electric drive unit 30 drives the curtain side panel 23 to rise and fall through the transmission assembly 40. Combined with the function of the projection curtain roller assembly 21 to automatically roll up and release the projection curtain 22, the opening and closing of the projection curtain 22 is controlled.

[0045] like Figures 2 to 4 As shown, the transmission assembly 40 includes two symmetrically arranged linkage groups 41a and 41b, which are located between the base 10 and the curtain side panel 23. The electric drive unit 30 can be a combination of a motor 31, a gearbox 32 connected to the motor 31, and two driven rods 33. The two linkage groups 41a and 41b are respectively connected to the driven rods 33 at corresponding positions, so that the electric drive unit 30 can drive the two linkage groups 41a and 41b to move synchronously through the gearbox 32 driven by the motor 31 and the two driven rods 33, thereby driving the projection curtain 22 to open and close electrically.

[0046] like Figures 2 to 4As shown, the rack gearbox 32 can be an existing product. Basically, the rack gearbox 32 includes a transmission wheel assembly and two racks installed in a housing. The transmission wheel assembly is connected to the motor 31. The two racks are arranged vertically and mesh with a gear in the transmission wheel assembly. The two racks extend from the left and right sides of the housing and are connected to corresponding connecting rod assemblies 41a and 41b via driven rods 33. In this embodiment, each connecting rod assembly 41a and 41b has two pivotally connected connecting rods 411 and 412. The upper connecting rod 411 is pivotally mounted in an upper pivot seat 42 and is mounted on the base 10 via the upper pivot seat 42. The lower connecting rod 412 is pivotally mounted in a lower pivot seat 43 and is mounted on the curtain side panel 23 via the lower pivot seat 43.

[0047] like Figures 1 to 2 As shown, the curtain device 2 of this utility model includes one or two sets of curtain assemblies 50a and 50b, and a curtain drive unit 60. When the curtain assembly is a set, it is arranged on one side (left or right) of the back side of the projection curtain assembly 20; when the curtain assemblies 50a and 50b are two sets, they are arranged on both sides (left and right) of the back side of the projection curtain assembly 20. The curtain drive unit 60 is connected to the curtain assemblies 50a and 50b, and can independently and controllably drive the curtain assemblies 50a and 50b to extend and return laterally from one or both sides of the back side of the projection curtain assembly 20.

[0048] like Figures 1 to 4 As shown, in this embodiment, the curtain assemblies 50a and 50b include a curtain roller assembly 51 and a curtain 52. The curtain roller assembly 51 is movably mounted on the curtain side panel 23 of the projection curtain device 1. The curtain roller assembly 51 is provided with a lower outer frame 54, which can be slidably mounted on the curtain side panel 23. The curtain 52 can be made of blackout fabric. The bottom edge of the curtain 52 is connected to the curtain roller assembly 51. The curtain roller assembly 51 can automatically roll up and release the curtain 52. The curtain roller assembly 51 can be an existing product, and its specific composition and structure will not be described in detail here. The top edge of the shielding curtain 52 is provided with a sliding member 53. The sliding member 53 is movably mounted on the base 10. The shielding curtain 52 can be opened and closed together with the projection curtain 22 on the back side. The curtain drive unit 60 is connected to the curtain roller assembly 51 and the sliding member 53, and can independently drive the curtain assemblies 50a and 50b to extend and return laterally from the side of the projection curtain assembly 20.

[0049] like Figures 2 to 6As shown, the base 10 has one or two upper guide rails. The sliding member 53 of the top edge of the curtain 52 is mounted on the upper guide rail 11 of the base 10 and can move laterally along the upper guide rail 11. The curtain side panel 23 has one or two lower guide rails. Each curtain roller assembly 51 has a lower outer frame 54. The lower outer frame 54 is mounted on the lower guide rail 231 of the curtain side panel 23 and can move laterally along the lower guide rail 231, thereby guiding the curtain assemblies 50a and 50b to extend and retract laterally from the side of the projection curtain assembly 20, and improving the smoothness of the movement of the curtain assemblies 50a and 50b.

[0050] like Figures 7 to 11 As shown, in this embodiment, the curtain drive unit 60 uses a cable-driven drive mechanism of types 63a, 63b, 63c, 63d, and 63e, which includes a motor 61, a drive wheel 62, and a cable assembly 63. The motor 61, together with the drive wheel 62, is disposed on one side of the base 10. The motor 61 and the drive wheel 62 can also be installed in a housing 600, which is used to install the unit inside a motor vehicle. The motor 61 and the drive wheel 62 can transmit power to each other through a combination of worm gear and worm or other gear transmission components. The cable assembly 63 connects the drive wheel 62, the sliding member 53, and the lower outer frame 54, enabling the motor 61 to drive the curtain assemblies 50a and 50b to extend and return laterally from the side of the projection curtain assembly 20 via the drive wheel 62 and the cable assembly 63.

[0051] like Figures 7 to 11 As shown, in this embodiment, the pull cord assembly 63 includes multiple pull cords 63a, 63b, 63c, 63d, and 63e, which are connected to the drive wheel 62 in a systematic configuration of a single or multiple loops. Preferably, the pull cord assembly 63 adopts a simplified single-loop systematic configuration, which allows it to utilize the forward and reverse rotation control of the drive wheel 62 to more easily and conveniently drive the curtain assemblies 50a and 50b to extend and return laterally from the side of the projection curtain assembly 20.

[0052] like Figures 7 to 11As shown, to ensure that the configuration of the pull cord assembly 63 can efficiently transmit force and smoothly drive the curtain assemblies 50a and 50b, the pull cords 63a, 63b, 63c, 63d, and 63e used in the pull cord assembly 63 can be steel cables or other flexible and unbreakable wires. The pull cord assembly 63 also includes a tensioner 631, which connects to the pull cords 63a, 63b, 63c, 63d, and 63e to maintain tension on the pull cords 63a, 63b, 63c, 63d, and 63e, providing a stable force to the curtain assemblies 50a and 50b, and preventing the pull cord assembly 63 from disengaging from the drive wheel 62 due to excessive slack in the pull cords 63. Furthermore, the draw cable assembly 63 may further include one or more adjusters 632, which are connected to the draw cables 63a, 63b, 63c, 63d, and 63e to adjust the lengths of the draw cables 63a, 63b, 63c, 63d, and 63e, thereby compensating for dimensional tolerances between the draw cables 63a, 63b, 63c, 63d, and 63e and the components they are connected to. Preferably, the tensioner 631 is located on the side of the drive wheel 62, and one adjuster 632 is provided on each of the sliding member 53 and the connecting rod assemblies 41a and 41b.

[0053] like Figure 2 , Figures 7 to 11 As shown, when the curtain device 2 has two sets of curtain assemblies 50a and 50b arranged on the left and right, the transmission assembly 40 of the projection curtain device 1 has two sets of connecting rods 41a and 41b arranged on the left and right on the back side of the projection curtain 22. The motor 61 and its connected drive wheel 62 are arranged on the outer side of one end of the base 10. The first set of connecting rods 41a and the first set of curtain assemblies 50a are located on the side adjacent to the motor 61, and the second set of connecting rods 41b and the second set of curtain assemblies 50b are located on the side away from the motor 61. The pull cord assembly 63 includes 5 pull cords and a steering and winding component 633. The steering and winding component 633 is pivotally mounted in the middle section of the back side of the base 10. The 5 pull cords are a first pull cord 63a, a second pull cord 63b, a third pull cord 63c, a fourth pull cord 63d and a fifth pull cord 63e, wherein;

[0054] One end of the first pull line 63a is connected to the drive wheel 62, and the other end of the first pull line 63a is connected to the lower outer frame 54 of the first set of curtain assembly 50a. Preferably, the first pull line 63a extends along the first set of connecting rods 41a and the curtain side panel 23.

[0055] One end of the second pull line 63b is connected to the lower outer frame 54 of the first set of curtain assembly 50a, and the other end of the second pull line 63b is connected to the sliding member 53 of the second set of curtain assembly 50b; preferably, the second pull line 63b extends along the curtain side panel 23, the second set of connecting rods 41b and the base 10.

[0056] One end of the third pull line 63c is connected to the sliding member 53 of the second set of curtain assembly 50b, and the third pull line 63c extends in the opposite direction around the turning and winding member 633, and the other end of the third pull line 63c is connected to the lower outer frame 54 of the second set of curtain assembly 50b; preferably, the third pull line 63c is arranged to extend along the base 10, the second set of connecting rods 41b and the curtain side panel 23.

[0057] One end of the fourth pull line 63d is connected to the lower outer frame 54 of the second set of curtain assembly 50b, and the other end of the fourth pull line 63d is connected to the sliding member 53 of the first set of curtain assembly 50a; preferably, the fourth pull line 63d extends along the curtain side panel 23, the first set of connecting rods 41a and the base 10.

[0058] One end of the fifth pull line 63e is connected to the slider 53 of the first set of curtain assembly 50a. The fifth pull line 63e extends in the opposite direction around the steering winding component 633, and the other end of the fifth pull line 63e is connected to the drive wheel 62. Preferably, the fifth pull line 63e is configured to extend along the base 10.

[0059] like Figure 2 , Figures 7 to 11As shown, with the aforementioned composition and configuration of the pull cord assembly 63, when the motor 61 drives the drive wheel 62 to rotate clockwise, the drive wheel 62 winds the first pull cord 63a while simultaneously releasing the fifth pull cord 663e. Utilizing the winding and releasing action of the drive wheel 62 on the first pull cord 63a and the fifth pull cord 63e, the first pull cord 63a drives the lower outer frame 54 of the first set of curtain assemblies 50a to move outward along the transverse curtain side panel 23. Then, via the lower outer frame 54 of the first set of curtain assemblies 50a, the second pull cord 63b drives the sliding member 53 of the second set of curtain assemblies 50b to move outward along the transverse base 10. Simultaneously, the sliding member 53 of the second set of curtain assemblies 50b drives the third pull cord 63c. The third pull cord 63c, through the turning and winding member 633, turns and pulls the second set of curtain assemblies 50a. The lower outer frame 54 of 0b moves outward along the curtain side panel 23, and pulls the fourth pull line 63d via the lower outer frame 54 of the second set of curtain assembly 50b. The fourth pull line 63d drives the sliding member 53 of the first set of curtain assembly 50a, and in conjunction with the drive wheel 62, releases the action of the fifth pull line 63e connected to the sliding member 53 of the first set of curtain assembly 50a. This causes the shielding curtains 52 of the two sets of curtain assemblies 50a and 50b to extend from the left and right sides of the back of the projection curtain 22, respectively, to create a shielding screen that can provide privacy. The shielding curtains 52 that extend laterally can be controlled independently, and since the shielding screens extend laterally from the back of the projection curtain 22, they will not affect the display of the projection curtain 22 and can prevent people watching the audio-visual content inside the car from being seen by people outside the car.

[0060] like Figures 12 to 14 As shown, when the left and right curtain assemblies 50a and 50b are reset, the drive wheel 62 is rotated in the opposite direction by the motor 61. This allows the curtain assemblies 50a and 50b to be synchronously driven back to the back of the projection curtain 22 via the aforementioned pull cord assembly 63. Then, as... Figures 12 to 13 As shown, the electric drive unit 30 of the projection curtain device 1, combined with the transmission component 40, drives the projection curtain 22 to close and retract, and also drives the shielding curtain 52 on the back side of the projection curtain 22 to close and retract, so that the shielding device 2 has good ease of use and operation, and the shielding device 2 can be independently controlled by the shielding drive unit 60.

[0061] In the aforementioned embodiments, the pull wire assembly 63 is configured as a single-loop system by combining multiple pull wires 63a, 63b, 63c, 63d, 63e and a steering winding component 633. In this pull cord assembly 63, some of the pull cords are respectively connected to the two linkage groups 41a and 41b. Furthermore, the left and right linkage groups 41a and 41b assist in the configuration of pull cords 63a, 63b, 63c, 63d, and 63e. Alternatively, the lengths of pull cords 63a, 63b, 63c, 63d, and 63e in the pull cord assembly 63 can be adjusted by the adjuster 632 provided on the slider 53 and the linkage groups 41a and 41b. Alternatively, the tension of pull cords 63a, 63b, 63c, 63d, and 63e can be maintained by the tensioner 631. Alternatively, one or more wire components 64 can be provided on the linkage groups 41a and 41b to guide the pull cords 63a, 63b, 63c, 63d, and 63e through, so that the pull cord assembly 63 can drive the side curtain assemblies 50a and 50b to move more smoothly and without interference.

[0062] When the curtain device 2 has a set of curtain components, the composition of the pull cord assembly 63 that matches a single set of curtain components is different from the composition of the pull cord assembly 63 that matches two sets of curtain components. It reduces the number of pull cords and by analogy changes the configuration of the pull cords so that it can form a systematic configuration of a single loop. It can also achieve the same technical effect by having the pull cord assembly 63 drive the curtain components to move.

[0063] The above description is merely an embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A curtain device for attaching to a projection curtain device, which can be attached to a projection curtain device inside a motor vehicle, wherein a projection curtain assembly of the projection curtain device has a projection curtain operable to be opened and closed, and has a base disposed at the top of the projection curtain and a curtain side panel disposed at the bottom of the projection curtain, characterized in that, The curtain device comprises: one or two sets of curtain assemblies arranged on one or both sides of the projection curtain, the curtain assemblies are arranged on the back side of the projection curtain and connected to the base and the curtain side plate, the curtain assemblies comprise a curtain roller set and a shading curtain capable of being automatically rolled up and released by the curtain roller set, the shading curtain can be unfolded and folded with the projection curtain on the back side of the projection curtain; and a curtain drive set arranged on the side of the base and connected to the curtain assemblies, and capable of driving the unfolded shading curtain to move transversely from the back side of the projection curtain to generate a shading curtain and reset.

2. The projection shade attachment shade device of claim 1, wherein, The bottom edge of the shading curtain is connected to the curtain roller set and can be automatically rolled up and released by the curtain roller set, the curtain roller set can be transversely movably arranged on the curtain side plate of the projection curtain device, the top edge of the shading curtain is provided with a sliding member, the sliding member can be transversely movably arranged on the base, the curtain roller set is provided with a lower outer frame, the lower outer frame can be transversely movably arranged on the curtain side plate, the curtain drive set is connected to the curtain roller set and the sliding member, and can drive the curtain assembly to move transversely from the side of the projection curtain assembly and reset.

3. The projection shade attachment shade device of claim 2, wherein, An upper guide rail is arranged in the base, and the sliding member of the shading curtain is transversely movably arranged on the upper guide rail of the base; the curtain side plate is provided with a lower guide rail, and the lower outer frame of the curtain roller set is transversely movably arranged on the lower guide rail of the curtain side plate.

4. The projection screen apparatus according to claim 2 or 3, wherein The curtain drive set is a pull wire type drive mechanism, which comprises a motor, a drive wheel and a pull wire assembly, the motor is arranged on one side of the base in combination with the drive wheel, the pull wire assembly is connected to the drive wheel, the sliding member and the lower outer frame, and the motor can drive the curtain assembly to move transversely from the side of the projection curtain assembly and reset through the drive wheel and the pull wire assembly.

5. The projection shade attachment shade device of claim 4, wherein, The pull wire assembly comprises a plurality of pull wires, and the plurality of pull wires are connected to the drive wheel in a configuration mode of forming a single loop.

6. The projection shade attachment shade device of claim 5, wherein, The pull wire assembly further comprises a tensioner connected to the pull wires and capable of maintaining the tension of the pull wires.

7. The projection shade attachment shade device of claim 5, wherein, The pull wire assembly further comprises one or more adjusters connected to the pull wires and capable of adjusting the length of the pull wires.

8. The projection shade attachment shade device of claim 5, wherein, The top of the projection curtain of the projection curtain device is arranged on the base by a projection curtain roller set, and the projection curtain assembly operates the unfolding and folding of the projection curtain by a motorized drive set arranged on the base in combination with a transmission assembly, the transmission assembly comprises two link sets symmetrically arranged between the base and the curtain side plate; part of the pull wires of the pull wire assembly pass through the two link sets respectively.

9. The projection shade attachment shade device of claim 8, wherein, The pull wire assembly further comprises a tensioner connected to the pull wires and capable of maintaining the tension of the pull wires, and one or more adjusters connected to the pull wires and capable of adjusting the length of the pull wires.

10. The projection shade attachment shade device of claim 8, wherein, One or more wire guide members are arranged on the link sets to guide the pull wires.

Images