Bending guide rail mechanism

Abstract

The invention provides a bending guide rail mechanism, which is mounted in a vehicle and distributed in a side trim space of a vehicle body trim side wall, and comprises a fixedly arranged rotating shaft, a curtain movable guide rail rotatably mounted on the rotating shaft, a form switching driving source and a switching transmission unit, the form switching driving source is connected with the curtain movable guide rail through the switching transmission unit, drives the curtain movable guide rail to rotate outwards until the curtain movable guide rail is stored in the side interior trim space, and drives the curtain movable guide rail to rotate inwards until the curtain movable guide rail is in a vertical state. By switching the form of the curtain movable guide rail, the curtain movable guide rail has a guide rail function during projection and is stored in the interior space of the vehicle when projection is not carried out, the occupied space of the bent guide rail mechanism at the moment is reduced, the abrupt feeling in the interior environment of the vehicle is avoided, and the attractiveness of the interior environment of the vehicle when projection is not carried out is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a bending guide rail mechanism. Background Technology

[0002] To meet the increasingly sophisticated passenger experience demands of the automotive market, some vehicle models are equipped with dedicated mobile screen systems for rear passengers. However, the development costs of mobile screen systems are high, and the development of the screen movement mechanism is also complex. Therefore, dedicated projection screen systems for rear passengers have been introduced to the market as a viable alternative to mobile screen systems.

[0003] Typically, a mobile screen system includes a screen retraction mechanism and a projector. For example, Chinese Utility Model Patent Application No. 202320608041.3 discloses a projection device for use inside a vehicle. This device places the projection screen between the left and right B-pillars of the vehicle and the projector below the vehicle's roof. The projection screen is rolled up on a roller shutter tube, both ends of which are rotatably mounted on a U-shaped frame. The U-shaped frame includes vertically arranged curtain rails at both ends, which are connected to the B-pillars of the vehicle body via connecting plates. The free end of the projection screen has a sliding foot that slides along the curtain rails. The U-shaped frame has a drive mechanism for driving the sliding foot to reciprocate along the curtain rails. The drive mechanism moves the sliding foot along the curtain rails, thus enabling the projection screen to be retracted and unfolded.

[0004] However, the aforementioned existing projection devices for vehicle interiors have the following drawbacks: the projection screen unfolds into a rectangular shape, while the vehicle's left and right B-pillars are V-shaped (or trapezoidal), resulting in a mismatch in shape. Consequently, when the projection screen is unfolded, a large triangular gap is formed between the left and right sides of the screen and the vehicle's left and right B-pillars. To address this, the existing projection devices for vehicle interiors incorporate a large decorative panel to conceal the curtain rails and connecting plates within the U-shaped frame, thereby also concealing the triangular gap. This results in the fixed frame portion of the projection screen, which secures it to the B-pillars, occupying a significant amount of space. After installation, the decorative panel appears unusually obtrusive and unsightly within the vehicle's interior environment. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by the present invention is to provide a bending guide rail mechanism that can switch forms and be folded into the interior space of the vehicle when not in use, thereby reducing the space occupied at this time.

[0006] To achieve the above objectives, the present invention provides a bending guide rail mechanism, which is installed in the side interior space of a vehicle body. The bending guide rail mechanism includes a fixedly mounted rotating shaft, a curtain movable guide rail rotatably mounted on the rotating shaft, a form switching drive source, and a switching transmission unit. The form switching drive source is connected to the curtain movable guide rail through the switching transmission unit, driving the curtain movable guide rail to rotate outward to be housed in the side interior space, and driving the curtain movable guide rail to rotate inward to a vertical state.

[0007] Furthermore, the bending guide rail mechanism is installed in the side interior space formed by the vehicle interior trim and the B-pillar; the curtain movable guide rail rotates outward or inward along the width direction of the vehicle;

[0008] When the curtain movable guide rail is rotated outward to be stored in the side interior space, the curtain movable guide rail is in an inclined state, and the inclined direction of the curtain movable guide rail is the same as the inclined direction of the B-pillar of the vehicle body.

[0009] Furthermore, the switching transmission unit includes a fixed guide rail housed in the side interior space and fixed to the vehicle frame, a fixedly installed and rotatable drive gear, a drive rack meshing with the drive gear, and a first transmission link. The form switching drive source is connected to the drive gear. The two ends of the first transmission link are rotatably connected to the drive rack and the curtain movable guide rail, respectively. The fixed guide rail has a rack groove that slides with the drive rack.

[0010] Furthermore, the switching transmission unit also includes a passive link, one end of which is slidably engaged with the rack groove in the fixed guide rail, and the other end is rotatably connected to the curtain movable guide rail. The passive link is distributed on the lower side of the first transmission link and forms an acute angle with the first transmission link.

[0011] Furthermore, a stop is fixed on the drive rack, and a sliding block is fixed to the end of the passive connecting rod. The sliding block is slidably accommodated in the fixed guide rail.

[0012] When the curtain movable guide rail rotates inward to a vertical position, the sliding block abuts against the upper side of the stop.

[0013] Furthermore, the switching transmission unit includes a fixing nut housed in the side interior space and fixed to the vehicle frame, a transmission screw or transmission lead screw threaded into the fixing nut, and a second transmission link. The form switching drive source is connected to the transmission screw or transmission lead screw, and the two ends of the second transmission link are respectively rotatably connected to the transmission screw or transmission lead screw and the curtain movable guide rail.

[0014] Furthermore, the bending guide rail mechanism also includes a decorative panel mechanism, which includes a decorative panel that can rotate around a fixed axis and a decorative panel transmission unit. The decorative panel is connected to the curtain movable guide rail through the decorative panel transmission unit.

[0015] When the curtain's movable guide rail is stored in the side interior space, the decorative panel is also stored in the side interior space;

[0016] When the curtain movement guide rail is in a vertical state, at least a portion of the decorative panel extends from the side interior space and covers the gap formed between the curtain movement guide rail and the vehicle interior.

[0017] Furthermore, the decorative panel includes several movable decorative panels rotatably connected to a rotating shaft. Two adjacent movable decorative panels are respectively an inner movable decorative panel and an outer movable decorative panel. The decorative panel transmission unit includes a compression spring, a transmission recess on the outer movable decorative panel, and a transmission protrusion on the inner movable decorative panel. The innermost movable decorative panel among the several movable decorative panels is fixed to the curtain movable guide rail. One end of the compression spring is fixedly installed, and the other end is connected to the outer movable decorative panel. The transmission protrusion can engage with the transmission recess.

[0018] Furthermore, the decorative panel includes several movable decorative panels rotatably connected to a rotating shaft. Two adjacent movable decorative panels are respectively an inner movable decorative panel and an outer movable decorative panel. The decorative panel transmission unit includes a decorative panel transmission link, a transmission pin fixed on the decorative panel transmission link, and a transmission groove formed in the outer movable decorative panel. The innermost movable decorative panel among the several movable decorative panels is fixed to the curtain movable guide rail. One end of the decorative panel transmission link is movable and connected to the transmission component in the switching transmission unit. The other end of the decorative panel transmission link is rotatably connected to the curtain movable guide rail. The transmission pin is movably accommodated in the transmission groove.

[0019] As described above, the bending guide mechanism of the present invention has the following beneficial effects:

[0020] The screen's movable guide rail in this application is a switchable movable structure. When projection is not needed, the screen's movable guide rail is in a retracted state. In this state, the screen's movable guide rail and the bending guide rail mechanism are all housed within the side interior space, without protruding from the vehicle's interior. This minimizes the space occupied by the bending guide rail mechanism, especially as it does not additionally occupy the interior space, avoiding any obtrusive appearance and significantly improving the aesthetics of the vehicle's interior environment in this state. When projection is needed, the screen's movable guide rail is in a vertical state. The two vertical screen movable guide rails on the left and right are rectangular, matching the rectangular shape of the projection screen itself, and providing guidance for the screen sliders on both sides of the screen. Therefore, this application, by switching the form of the screen's movable guide rail, allows it to function as a guide rail during projection and be retracted into the vehicle's interior space when not projecting, thus enhancing the aesthetics of the vehicle's interior environment when projection is not in use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation of the vehicle projection screen system of this application inside the vehicle.

[0022] Figure 2 This is a diagram showing the stowed state of the vehicle projection screen system in this application.

[0023] Figure 3 This is a diagram showing the unfolded state of the vehicle projection screen system of this application.

[0024] Figure 4 for Figure 2 Cross-sectional view of the vehicle projection screen system.

[0025] Figure 5 for Figure 5 A schematic diagram of the structure of a vehicle projection screen system.

[0026] Figure 6 for Figure 6 The main view.

[0027] Figure 7 for Figure 3 Cross-sectional view of the vehicle projection screen system.

[0028] Figure 8 for Figure 7 A schematic diagram of the structure of a vehicle projection screen system.

[0029] Figure 9 for Figure 8 The main view.

[0030] Figure 10 This is a front view of Embodiment 1 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0031] Figure 11 for Figure 10 Front view of the central curtain's movable guide rail in a vertical position.

[0032] Figure 12 This is a front view of Embodiment 2 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0033] Figure 13 for Figure 12 Front view of the central curtain's movable guide rail in a vertical position.

[0034] Figure 14 This is a front view of Embodiment 3 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0035] Figure 15 for Figure 14 Front view of the central curtain's movable guide rail in a vertical position.

[0036] Figure 16 This is a front view of Embodiment 4 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0037] Figure 17 This is a front view of Embodiment 1 of the decorative panel mechanism in this application, in which the decorative panel is in a stowed state.

[0038] Figure 18 for Figure 17 The front view of the decorative panel when it is not fully unfolded.

[0039] Figure 19 for Figure 17 Front view of the decorative panel in its fully extended state.

[0040] Figure 20 This is a front view of Embodiment 2 of the decorative panel mechanism in this application, in which the decorative panel is in a stowed state.

[0041] Figure 21 for Figure 20 Front view of the decorative panel in its fully extended state.

[0042] Figure 22 for Figure 21 Assembly diagram of a vehicle projection screen system.

[0043] Component designation explanation

[0044] 10. Vehicle interior

[0045] 20 Frame

[0046] 21. Top interior space

[0047] 22 Side interior space

[0048] 23. Car roof

[0049] 24. A-pillar of the car body

[0050] 25. B-pillar of the car body

[0051] 26. C-pillar of the car body

[0052] 30 Rotation axis

[0053] 40 Curtain Motion Rail

[0054] 50. Mode switching driver source

[0055] 61 Fixed guide rail

[0056] 62 Drive gear

[0057] 63 Drive rack

[0058] 64 First transmission link

[0059] 65 Passive Link

[0060] 66 Stop section

[0061] 67 Sliding Block

[0062] 68. Fixing nut

[0063] 69. Transmission screw

[0064] 610 Second transmission link

[0065] 71 Inner movable trim panel

[0066] 72. Exterior movable trim panel

[0067] 81 Compression Spring

[0068] 82 Transmission protrusion

[0069] 83 Trim Panel Stop Block

[0070] 84 trim panel drive linkage

[0071] 85 Transmission Pin

[0072] 86 Transmission groove

[0073] 90 Projection equipment

[0074] 111 Curtain Frame

[0075] 112. Curtain Body

[0076] 113 Curtain Slider

[0077] 114 Curtain Fixing Rail Detailed Implementation

[0078] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0079] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0080] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0081] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0082] This invention provides a bending guide rail mechanism for use in offices, automobiles, and other fields. The following embodiments use an automobile as an example. Based on this, the invention also provides a vehicle projection screen system incorporating the bending guide rail mechanism. Furthermore, for ease of description, in the following embodiments, the width direction of the vehicle is defined as the left-right direction, the length direction as the front-back direction, and the height direction as the up-down direction.

[0083] like Figure 1As shown, the vehicle has a frame 20 and an interior trim 10 fixed within the frame 20. The frame 20 typically includes a roof 23, A-pillars 24 extending forward from the left and right sides of the front end of the roof 23, B-pillars 25 extending outward and downward from the left and right sides of the roof 23, and C-pillars 26 extending rearward from the left and right sides of the rear end of the roof 23. The A-pillars 24, B-pillars 25, and C-pillars 26 are the side panels of the vehicle body. An interior space is formed between the frame 20 and the interior trim 10. Therefore, interior spaces are formed between the roof 23, A-pillars 24, B-pillars 25, and C-pillars 26 and the interior trim 10. The interior space formed between the roof 23 and the body interior 10 is defined as the top interior space 21, and the interior space formed between the B-pillar 25 and the C-pillar 26 and the body interior 10 is defined as the side interior space 22. The top interior space 21 is located at the top of the body interior 10, and the side interior space 22 is located on the sides of the body interior 10. Furthermore, since the B-pillar 25 extends outwards and downwards, such as... Figure 4 and Figure 7 As shown, this makes the B-pillars on the left and right sides of the vehicle form a V-shape, or a trapezoidal shape.

[0084] like Figures 2 to 4 ,as well as Figure 7 As shown, the vehicle projection screen system includes a projector, a screen retraction mechanism, and a bending guide rail mechanism. The projector is housed in the overhead interior space 21 above the second-row parking spaces. The curtain retraction mechanism is located between the left and right B-pillars 25 of the vehicle body and installed in the overhead interior space 21. The mechanism includes a curtain frame 111 fixedly installed in the overhead interior space 21, a curtain body 112 retractably mounted on the curtain frame 111, curtain sliders 113 fixed along the width of the curtain body 112 on both sides of its lower edge, curtain fixing rails 114 distributed along the width of the curtain body 112 on both sides of its left and right sides, a retraction drive source, and a retraction transmission unit. The curtain frame 111 is fixed to the roof 23, and the curtain fixing rails 114 are fixed to the curtain frame 111 and have vertically extending first grooves. The retraction drive source is connected to the curtain sliders 113 via the retraction transmission unit, driving the curtain sliders 113 to move up and down. The curtain body 112 is rectangular, and its width direction is consistent with the width direction of the vehicle.

[0085] Furthermore, such as Figure 4 and Figure 7As shown, there are two bending guide rail mechanisms, which are respectively installed in the left and right side interior spaces 22 and arranged close to the left and right side B-pillars 25 of the vehicle body. The two bending guide rail mechanisms are distributed on the left and right sides of the curtain retraction mechanism, and are installed in the side interior spaces 22 formed by the vehicle interior 10 and the vehicle B-pillars 25. Each bending guide rail mechanism includes a fixed rotating shaft 30 that extends front and rear, a curtain movable guide rail 40 rotatably mounted on the rotating shaft 30 at its upper end, a form switching drive source 50, and a switching transmission unit. The rotating shaft 30 is fixed to the roof 23 or the curtain frame 111. The curtain movable guide rail 40 has a second sliding groove. The form switching drive source 50 is connected to the curtain movable guide rail 40 through the switching transmission unit, driving the curtain movable guide rail 40 to rotate outward to be stored in the side interior space 22, and driving the curtain movable guide rail 40 to rotate inward to a vertical state.

[0086] Of course, in other embodiments, the curtain retraction mechanism and the bending guide rail mechanism can be located at the C-pillar 26 of the vehicle body.

[0087] Furthermore, the interior trim 10 has a first opening at the screen retraction mechanism, which communicates with the top interior space 21 and allows the screen body 112 to pass through. The interior trim 10 also has a second opening at the bending guide rail mechanism, which communicates with the side interior space 22 and allows the screen movement guide rail 40 to pass through. Finally, the interior trim 10 has a third opening that allows the lens at the front of the projector to be exposed.

[0088] like Figures 4 to 6 As shown, when the form switching drive source 50 drives the curtain movable guide rail 40 to rotate outward through the switching transmission unit until it is stored in the side interior space 22, the first slide rail and the second slide rail intersect, and the curtain body 112 is stored in the top interior space 21. At this time, due to the first slide rail and the second slide rail, the outer end of the curtain slider 113 is disengaged from the second slide rail, so the retraction drive source cannot drive the curtain slider 113 to move downward along the first slide rail and the second slide rail, so the curtain body 112 always remains stored in the top interior space 21. Meanwhile, the bending guide rail mechanism is completely housed between the B-pillar 25 of the vehicle body and the interior trim 10, without protruding from the interior trim 10 and being exposed in the interior environment. This makes the bending guide rail mechanism occupy very little space at this time, especially without additionally occupying the interior environment inside the interior trim 10. The curtain retraction mechanism is completely housed between the roof 23 and the interior trim 10, without protruding from the interior trim 10 and being exposed in the interior environment. Ultimately, when the bending guide rail mechanism and the curtain retraction mechanism are in the retracted state, neither additionally occupies the interior environment inside the interior trim 10, greatly improving the aesthetics of the interior environment in this state.

[0089] like Figures 7 to 9 As shown, when the form-changing drive source 50 drives the curtain movable guide rail 40 to rotate inward to a vertical state via the switching transmission unit, the curtain movable guide rail 40 extends from the side interior space 22. The second slide rail is collinear with the first slide rail, and the two are aligned and connected. At this time, the curtain slider 113 can slide and engage with the first and second slide rails. When the retraction drive source drives the curtain slider 113 to move downward in the first and second slide rails via the retraction transmission unit, the curtain slider 113 drives the lower edge of the curtain body 112 to move downward together, causing the curtain body 112 to unfold and extend from the lower edge of the curtain body 112. Figure 2 and Figure 4 Switching to storage mode Figure 3 and Figure 7 In its unfolded state, the screen body 112 can be turned on after unfolding, and the projector can be aimed at the screen body 112 to display the projected content to the passengers in the second row. When the retraction drive source drives the screen slider 113 to move upward in the first and second slide grooves through the retraction transmission unit, the screen slider 113 drives the lower edge of the screen body 112 to move upward together, causing the screen body 112 to be stored in the top interior space 21, thus retracting the screen body 112 from... Figure 3 and Figure 7 The expanded state in the middle is switched to Figure 2 and Figure 4 The storage status within.

[0090] Therefore, this application sets the screen movable guide rail 40 as a movable structure, which can switch the form of the screen movable guide rail 40, allowing it to switch between a retracted state and a vertical state. When projection is not needed, the screen movable guide rail 40 can be stored in the side interior space 22, without protruding from the vehicle interior 10 and being exposed in the vehicle interior environment. This reduces the space occupied by the bending guide rail mechanism at this time, and in particular, it reduces the additional space occupied by the bending guide rail mechanism in the vehicle interior environment 10, so that it does not have an abrupt feeling in the vehicle interior environment, and greatly improves the aesthetics of the vehicle interior environment in this state.

[0091] Preferably, the curtain movable guide rail 40 rotates outward or inward along the width direction of the vehicle. Furthermore, when the curtain movable guide rail 40 rotates outward and is stored within the side interior space 22, it is in an inclined state, with the inclination direction of the curtain movable guide rail 40 being the same as the inclination direction of the B-pillar 25 of the vehicle body. Thus, the left and right curtain movable guide rails 40 form a figure-eight shape or a trapezoidal shape. The left and right curtain movable guide rails 40 can switch between trapezoidal and rectangular shapes to achieve both non-deployable and deployable curtain bodies 112.

[0092] The following presents four preferred embodiments of the bending guide mechanism.

[0093] Example 1 of bending guide rail mechanism

[0094] like Figure 10 As shown, the form-changing drive source 50 is a motor, housed in the top interior space 21, and fixed to the roof 23 or the curtain frame 111. The switching transmission unit includes a fixed guide rail 61, a drive gear 62, a drive rack 63, and a first transmission link 64; the drive gear 62 is housed in the top interior space 21 and fixed to the output shaft of the form-changing drive source 50; the drive rack 63 is movably housed in the top interior space 21 and the side interior space 22, and meshes with the drive gear 62; the two ends of the first transmission link 64 are rotatably connected to the lower end of the drive rack 63 and the curtain movable guide rail 40, respectively; the fixed guide rail 61 is housed in the side interior space 22 and fixed to the B-pillar 25 of the vehicle body, and the fixed guide rail 61 is distributed on the outside of the curtain movable guide rail 40. Both the curtain frame 111 and the fixed guide rail 61 have rack grooves that slide with the drive rack 63. In this switching transmission unit, a single motor drives the drive racks 63 on both the left and right sides simultaneously. In other words, the two sets of bending guide rail mechanisms on the left and right sides share the same form switching drive source 50, thereby reducing costs.

[0095] when Figure 10 When the form-switching drive source 50 rotates clockwise, it drives the two drive racks 63 to move in opposite directions. The ends of the drive racks 63 then move downwards along the rack grooves, driving the curtain movable guide rail 40 to rotate inwards around the rotation axis 30 via the first transmission link 64, until the curtain movable guide rail 40 rotates to a vertical position. Figure 11 As shown. By calculating the value of the rotation of the form-switching drive source 50, which causes the change in the length of the drive rack 63, and the final angle value of the curtain movable guide rail 40, it is ensured that the curtain movable guide rail 40 is vertical in the fully opened state. Conversely, when... Figure 11 When the form-changing drive source 50 rotates counterclockwise, it drives the two drive racks 63 to move towards each other. The ends of the drive racks 63 move upward along the rack grooves, driving the curtain movable guide rail 40 to rotate outward around the rotation axis 30 through the first transmission link 64, until it is completely stored in the side interior space 22. Furthermore, the self-locking of the form-changing drive source 50 achieves self-locking of the entire mechanism of the switching transmission unit.

[0096] In other cases, the drive rack 63 can be made of wire rope, as long as it can mesh with the drive gear 62.

[0097] Example 2 of bending guide rail mechanism

[0098] Embodiment 2 of the bending guide rail mechanism adds a passive connecting rod 65 to Embodiment 1. Specifically, as follows... Figure 12As shown, the switching transmission unit of the bending guide rail mechanism embodiment 2 also includes a passive link 65. The passive link 65 is distributed on the lower side of the first transmission link 64. One end of the passive link 65 is slidably engaged with the rack groove in the fixed guide rail 61, and the other end of the passive link 65 is rotatably connected to the curtain movable guide rail 40. An acute angle is formed between the passive link 65 and the first transmission link 64.

[0099] like Figure 12 and Figure 13 As shown, the passive link 65 does not transmit power, but it unfolds in tandem with the inward movement of the first transmission link 64, or retracts outward with the outward movement of the first transmission link 64, performing essentially the same actions. When the form-changing drive source 50 drives the curtain movable guide rail 40 to rotate inward to a vertical position via the drive gear 62, drive rack 63, and first transmission link 64, the passive link 65 forms an angle of 80° to 90° with the fixed guide rail 61. The passive link 65, the first transmission link 64, the fixed guide rail 61, and the curtain movable guide rail 40 form two triangles, reliably increasing the self-locking stability of the structure, especially in the front-to-back direction within the vehicle.

[0100] Example 3 of bending guide rail mechanism

[0101] The difference between Embodiment 3 and Embodiment 2 of the bending guide mechanism lies only in: Figure 14 and Figure 15 As shown, a stop 66 is fixed to the lower end of the drive rack 63. This stop 66 is either a block-shaped component or a hook-shaped component. A sliding block 67 distributed in the fixed guide rail 61 is fixed to the outer end of the passive connecting rod 65. When the mode switching drive source 50 drives the curtain movable guide rail 40 to rotate inward to a vertical state through the drive gear 62, drive rack 63 and first transmission connecting rod 64, the sliding block 67 at the outer end of the passive connecting rod 65 just abuts against the stop 66 at the lower end of the drive rack 63, and the passive connecting rod 65 and the fixed guide rail 61 form an angle of 80° to 90°. In this way, when the curtain movable guide rail 40 is in a vertical state, the abutment between the sliding block 67 and the stop 66 better realizes the self-locking of the bending guide rail mechanism, and prevents shaking when the bending guide rail mechanism is subjected to force in the front and rear directions or acceleration in various directions when the vehicle is driven. At the same time, when the curtain movable guide rail 40 in the vertical state begins to rotate outward and retract, the sliding block 67 abuts against the stop part 66, hooking the outer end of the passive connecting rod 65 to move upward, breaking the 80° to 90° angle between the passive connecting rod 65 and the fixed guide rail 61, and releasing the self-locking state.

[0102] Example 4 of bending guide rail mechanism

[0103] The only difference between Embodiment 4 of the bending guide mechanism and Embodiment 1 is that the structure of the switching transmission unit is different. Specifically, in Embodiment 4 of the bending guide mechanism, as... Figure 16 As shown, the switching transmission unit includes a fixing nut 68 housed in the side interior space 22 and fixed to the B-pillar 25 of the vehicle body, a transmission screw 69 threaded into the fixing nut 68, and a second transmission link 610. The form switching drive source 50 is connected to the transmission screw 69, and the two ends of the second transmission link 610 are rotatably connected to the transmission screw 69 and the curtain movable guide rail 40, respectively. Alternatively, the transmission screw 69 can be replaced with a transmission lead screw. In this case, the form switching drive source 50 is connected to the transmission lead screw, and the two ends of the second transmission link 610 are rotatably connected to the transmission lead screw and the curtain movable guide rail 40, respectively. In the fourth embodiment of the bending guide rail mechanism, each of the two bending guide rail mechanisms uses one form switching drive source 50. When the shape switching drive source 50 in each bending guide rail mechanism drives the transmission screw 69 or transmission lead screw to rotate, the transmission screw 69 or transmission lead screw also moves along its own length direction, thereby driving the curtain movable guide rail 40 to rotate outward or inward through the second transmission link 610, so that the left and right curtain movable guide rails 40 switch between trapezoidal and rectangular shapes.

[0104] Furthermore, when the curtain movement guide 40 is rotated inward and in a vertical position, a triangular gap is formed between the curtain movement guide 40 and the interior trim 10 on the outside of the B-pillar 25 of the vehicle body. To cover this triangular gap in this state, such as... Figure 4 and Figure 7 As shown, the vehicle projection screen system also includes two sets of trim panel mechanisms, distributed on the left and right sides of the screen body 112; each trim panel mechanism includes a decorative panel that can rotate around a fixed axis and a trim panel transmission unit, the decorative panel being connected to the screen movable guide rail 40 via the trim panel transmission unit. When the screen movable guide rail 40 is retracted into the side interior space 22, as... Figures 4 to 6 As shown, the decorative panel is also housed within the side interior space 22. When the curtain movement rail 40 extends from the side interior space 22 and is in a vertical position, as... Figures 7 to 9 As shown, at least a portion of the decorative panel extends from the side interior space 22 and covers the gap formed between the curtain movement guide 40 and the body interior 10 on the outside of the B-pillar 25, thereby enhancing the aesthetics of the curtain body 112 when it is unfolded.

[0105] Two preferred embodiments of the trim panel mechanism are given below.

[0106] Example 1 of Decorative Panel Mechanism

[0107] In the first embodiment of the decorative panel mechanism, such as Figure 17As shown, the decorative panel includes several movable panels. Two adjacent movable panels are designated as an inner movable panel 71 and an outer movable panel 72, respectively. The upper ends of both the inner and outer movable panels 71 and 72 are rotatably connected to the rotating shaft 30. The number of movable panels is determined by the size of the gap formed between the curtain movable guide rail 40 and the vehicle interior trim 10 after the curtain movable guide rail 40 extends; typically, it is 2-5 panels. In this embodiment, the decorative panel consists of two movable panels. The panel transmission unit includes a compression spring 81, a transmission recess on the outer movable panel 72, and a transmission protrusion 82 on the inner movable panel 71. The inner movable panel 71 is fixed to the curtain movable guide rail 40. The outer end of the compression spring 81 is fixedly installed, and the inner end of the compression spring 81 is connected to the outer movable panel 72. The transmission protrusion 82 can engage with the transmission recess. The spring force applied by the compression spring 81 to the outer movable trim panel 72 causes the outer movable trim panel 72 to press tightly against the B-pillar 25 of the vehicle body, thus counteracting the tension at the traction point formed by the transmission protrusion 82. In other embodiments, when there are three or more movable trim panels, the innermost movable trim panel 71 is fixed to the curtain movable guide rail 40; the connection structure between adjacent movable trim panels is the same.

[0108] When the form-changing drive source 50 drives the curtain's movable guide rail 40, which is in the retracted state, to rotate inward, as... Figure 17 and Figure 18 As shown, the inner movable decorative panel 71 rotates inward together with the curtain movable guide rail 40; simultaneously, the transmission protrusion 82 at the lower end of the inner movable decorative panel 71 moves towards the transmission recess at the lower end of the outer movable decorative panel 72. When the transmission protrusion 82 is not engaged in the transmission recess, the outer movable decorative panel 72 remains stationary; then, as the curtain movable guide rail 40 and the inner movable decorative panel 71 continue to rotate inward, the transmission protrusion 82 engages in the transmission recess; subsequently, as the curtain movable guide rail 40 and the inner movable decorative panel 71 continue to rotate inward, as... Figure 18 and Figure 19 As shown, overcoming the spring force of the compression spring 81, the inner movable trim panel 71 engages with the transmission recess through the transmission protrusion 82, causing the outer movable trim panel 72 to rotate inward together. The triangular gap is covered by the inner movable trim panel 71 and the outer movable trim panel 72, thus beautifying the vehicle interior.

[0109] In this embodiment, the decorative panel is configured as a rotatable inner movable panel 71 and an outer movable panel 72, which reduces the space occupied by the decorative panel in the stored state, facilitates its storage within the relatively small side interior space 22, and enhances the appearance of the vehicle interior when stored. In other embodiments, the inner movable panel 71, the outer movable panel 72, and the curtain movement guide rail 40 can rotate around different fixed axes, but the fixed axes are located in close proximity. The inner movable panel 71 and the outer movable panel 72 are preferably assembled from multiple individual parts, facilitating demolding and accommodating different panel materials.

[0110] Preferably, such as Figure 17 As shown, the trim panel mechanism also includes a fixedly installed trim panel stop block 83, which is fixed to the B-pillar 25 of the vehicle body or the fixed guide rail 61. When the trim panel is also stored in the side interior space 22, the trim panel stop block 83 abuts against the B-pillar 25 of the vehicle body and the outer movable trim panel 72; or, the trim panel stop block 83 abuts against the fixed guide rail 61 and the outer movable trim panel 72 to prevent abnormal noise caused by the outer movable trim panel 72 being in close contact with the B-pillar 25 of the vehicle body or the fixed guide rail 61.

[0111] Based on the action of the compression spring 81 and the trim panel stop block 83, when the trim panel mechanism is in the retracted state, the compression spring 81 and the trim panel stop block 83 apply two opposite forces to the outer movable trim panel 72; when the trim panel mechanism is in the semi-expanded state, the compression spring 81 and the trim panel stop block 83 apply two opposite forces to the outer movable trim panel 72; when the trim panel mechanism is in the unfolded state, the compression spring 81 and the traction point apply two opposite forces to the outer movable trim panel 72.

[0112] Example 2 of the decorative panel mechanism

[0113] In the second embodiment of the decorative panel mechanism, such as Figure 20 As shown, the decorative panel consists of two movable panels, namely an inner movable panel 71 and an outer movable panel 72. The upper ends of both the inner and outer movable panels 71 and 72 are rotatably connected to the rotating shaft 30. The panel transmission unit includes a panel transmission link 84, a transmission pin 85 fixed on the panel transmission link 84, and a transmission groove 86 formed in the outer movable panel 72. The inner movable panel 71 is fixed to the curtain movable guide rail 40. One end of the panel transmission link 84 is movable and connected to the drive rack 63 in the switching transmission unit. The other end of the panel transmission link 84 is rotatably connected to the curtain movable guide rail 40. The transmission pin 85 is movably accommodated in the transmission groove 86. Preferably, the panel transmission link 84 is the aforementioned first transmission link 64. In other embodiments, when there are three or more movable decorative panels, the innermost movable decorative panel 71 is fixed to the curtain movable guide rail 40; the connection structure between adjacent movable decorative panels is the same.

[0114] When the form-changing drive source 50 drives the curtain's movable guide rail 40, which is in the retracted state, to rotate inward, as... Figures 20 to 22 As shown, the inner movable trim panel 71 rotates inward together with the curtain movable guide rail 40; at the same time, the transmission pin 85 on the trim panel transmission linkage 84 moves downward. Before the transmission pin 85 abuts against the lower end of the transmission slide 86, the outer movable trim panel 72 remains stationary; then, as the curtain movable guide rail 40 and the inner movable trim panel 71 continue to rotate inward, the transmission pin 85 abuts against the lower end of the transmission slide 86; then, as the curtain movable guide rail 40 and the inner movable trim panel 71 continue to rotate inward, the inner movable trim panel 71 drives the outer movable trim panel 72 to rotate inward together through the abutment of the transmission pin 85 against the transmission slide 86. The inner movable trim panel 71 and the outer movable trim panel 72 cover the triangular gap, beautifying the vehicle interior.

[0115] Example 3 of Decorative Panel Mechanism

[0116] In Embodiment 3 of the decorative panel mechanism, the decorative panel is a single piece of panel. The upper end of the decorative panel is rotatably connected to the rotating shaft 30. Simultaneously, the decorative panel is fixedly connected to the curtain movable guide rail 40 and is directly driven to rotate by the curtain movable guide rail 40. This structure is suitable for larger side interior spaces 22, where a single rotatable decorative panel can conceal the triangular gap. It eliminates the need for the compression spring 83, transmission recess, and transmission protrusion 84 associated with Embodiment 1 of the decorative panel mechanism, or the transmission pin 85 and transmission groove 86 associated with Embodiment 2 of the decorative panel mechanism, simplifying the structure and reducing costs.

[0117] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0118] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A bending guide rail mechanism, installed in the side interior space (22) of the side wall of the vehicle body interior (10), characterized in that: The bending guide rail mechanism includes a fixed rotating shaft (30), a curtain movable guide rail (40) rotatably mounted on the rotating shaft (30), a form switching drive source (50), and a switching transmission unit. The form switching drive source (50) is connected to the curtain movable guide rail (40) through the switching transmission unit, driving the curtain movable guide rail (40) to rotate outward to be housed in the side interior space (22), and driving the curtain movable guide rail (40) to rotate inward to a vertical state.

2. The bending guide rail mechanism according to claim 1, characterized in that: The bending guide rail mechanism is installed in the side interior space (22) formed by the vehicle interior (10) and the vehicle B-pillar (25); the curtain movable guide rail (40) rotates outward or inward along the width direction of the vehicle; When the curtain movable guide rail (40) is rotated outward to be stored in the side interior space (22), the curtain movable guide rail (40) is in an inclined state, and the inclined direction of the curtain movable guide rail (40) is the same as the inclined direction of the B-pillar (25) of the vehicle body.

3. The bending guide rail mechanism according to claim 1, characterized in that: The switching transmission unit includes a fixed guide rail (61) housed in the side interior space (22) and fixed to the frame (20), a fixed and rotatable drive gear (62), a drive rack (63) meshing with the drive gear (62), and a first transmission link (64). The form switching drive source (50) is connected to the drive gear (62). The two ends of the first transmission link (64) are rotatably connected to the drive rack (63) and the curtain movable guide rail (40), respectively. The fixed guide rail (61) has a rack groove that slides with the drive rack (63).

4. The bending guide rail mechanism according to claim 3, characterized in that: The switching transmission unit also includes a passive link (65), one end of which is slidably engaged with the rack groove in the fixed guide rail (61), and the other end is rotatably connected to the curtain movable guide rail (40). The passive link (65) is distributed on the lower side of the first transmission link (64) and forms an acute angle with the first transmission link (64).

5. The bending guide rail mechanism according to claim 4, characterized in that: The drive rack (63) is fixed with a stop (66), and the end of the passive connecting rod (65) is fixed with a sliding block (67), which is slidably accommodated in the fixed guide rail (61). When the curtain movable guide rail (40) rotates inward to a vertical position, the sliding block (67) abuts against the upper side of the stop part (66).

6. The bending guide rail mechanism according to claim 1, characterized in that: The switching transmission unit includes a fixing nut (68) housed in the side interior space (22) and fixed to the frame (20), a transmission screw (69) or transmission lead screw threaded in the fixing nut (68), and a second transmission link (610). The form switching drive source (50) is connected to the transmission screw (69) or transmission lead screw. The two ends of the second transmission link (610) are rotatably connected to the transmission screw (69) or transmission lead screw and the curtain movable guide rail (40), respectively.

7. The bending guide rail mechanism according to claim 1, characterized in that: It also includes a decorative panel mechanism, which includes a decorative panel that can rotate around a fixed axis and a decorative panel transmission unit, wherein the decorative panel is connected to the curtain movable guide rail (40) through the decorative panel transmission unit; When the curtain movement rail (40) is stored in the side interior space (22), the decorative panel is also stored in the side interior space (22); When the curtain movement guide (40) is in a vertical state, at least a portion of the decorative panel extends from the side interior space (22) and covers the gap formed between the curtain movement guide (40) and the vehicle interior (10).

8. The bending guide rail mechanism according to claim 7, characterized in that: The decorative panel includes several movable decorative panels that are rotatably connected to the rotating shaft (30). Two adjacent movable decorative panels are an inner movable decorative panel (71) and an outer movable decorative panel (72). The decorative panel transmission unit includes a compression spring (81), a transmission recess on the outer movable decorative panel (72), and a transmission protrusion (82) on the inner movable decorative panel (71). The innermost movable decorative panel (71) among the several movable decorative panels is fixed to the curtain movable guide rail (40). One end of the compression spring (81) is fixedly set, and the other end is connected to the outer movable decorative panel (72). The transmission protrusion (82) can engage with the transmission recess.

9. The bending guide rail mechanism according to claim 7, characterized in that: The decorative panel includes several movable decorative panels that are rotatably connected to the rotating shaft (30). Two adjacent movable decorative panels are respectively an inner movable decorative panel (71) and an outer movable decorative panel (72). The decorative panel transmission unit includes a decorative panel transmission link (84), a transmission pin (85) fixed on the decorative panel transmission link (84), and a transmission groove (86) opened in the outer movable decorative panel (72). The innermost movable decorative panel (71) among the several movable decorative panels is fixed to the curtain movable guide rail (40). One end of the decorative panel transmission link (84) is movable and connected to the transmission component in the switching transmission unit. The other end of the decorative panel transmission link (84) is rotatably connected to the curtain movable guide rail (40). The transmission pin (85) is movably accommodated in the transmission groove (86).

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