Interior ceiling system

Abstract

The present invention discloses a vehicle interior ceiling system, comprising a trim panel, a ceiling, a trigger unit, a sliding unit, a lifting unit, and an elastic unit. The trigger unit is mounted on the trim panel and connected to the sliding unit. The sliding unit is capable of sliding relative to the lifting unit, and the lifting unit is connected to the elastic unit. Before triggering, the trigger unit and the sliding unit apply a downward thrust to the lifting unit, the elastic unit stores energy, and the trim panel and the ceiling overlap. During the deployment of the side curtain airbag, the side curtain airbag triggers the trigger unit, which drives the sliding unit to slide relative to the lifting unit, so that the trigger unit and the sliding unit no longer apply a downward thrust to the lifting unit. The elastic unit drives the lifting unit to move upward, and after the lifting unit connects with the ceiling, it lifts the ceiling upward, separating the ceiling from the trim panel. The present invention can lift the interior ceiling out of the vehicle before the side curtain airbag is released, ensuring that the curtain airbag is smoothly released from the ceiling.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle interior roof system. Background Art

[0002] Vehicle side curtain airbags are installed on the side panels above the left and right sides of the vehicle's interior ceiling. Before they can fully deploy and protect occupants, they must use their own deployment force to push open the ceiling and pass over the trim panel while maintaining the integrity of both the airbag and the trim panel. The following issues often arise during vehicle development:

[0003] 1. The side curtain airbags are stuck between the roof and the B-pillar trim, resulting in the side curtain airbags being unable to provide effective protection for the occupants;

[0004] 2. The B-pillar trim panel breaks or falls off, causing additional injuries to the occupants.

[0005] Therefore, it is necessary to design a car ceiling system that can push out the interior roof of the car before the side air curtain breaks away from the car, so as to ensure that the air curtain breaks away from the roof smoothly. Summary of the Invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a vehicle interior ceiling system that can push out the vehicle interior ceiling before the side air curtain is released, thereby ensuring that the air curtain is smoothly released from the ceiling.

[0007] The technical solution of the present invention provides a vehicle interior ceiling system, comprising a trim panel, a ceiling, a trigger unit, a sliding unit, a lifting unit and an elastic unit;

[0008] The trigger unit is mounted on the decorative plate, the trigger unit is connected to the sliding unit, the sliding unit is capable of sliding relative to the lifting unit, and the lifting unit is connected to the elastic unit;

[0009] Before triggering, the trigger unit and the sliding unit apply a downward thrust to the lifting unit, the elastic unit stores energy, and the decorative panel overlaps the ceiling;

[0010] During the deployment of the side air curtain, the side air curtain triggers the trigger unit, and the trigger unit drives the sliding unit to slide relative to the lifting unit, so that the trigger unit and the sliding unit no longer apply a downward thrust to the lifting unit. The elastic unit drives the lifting unit to move upward, and the lifting unit lifts the ceiling upward after docking with the ceiling, and the ceiling is separated from the trim panel.

[0011] Furthermore, the trigger unit includes a trigger button and a trigger link, the trigger button is arranged below the side air curtain or in contact with the side air curtain, and the trigger link is connected to the sliding unit.

[0012] Furthermore, the decorative panel includes a first plate, and the trigger link is also provided with a first limiter. The trigger key is installed on the first plate and protrudes upward from the first plate. The first limiter is located below the first plate and is used to limit the height of the trigger key protruding from the first plate.

[0013] Furthermore, the decorative panel also includes a second plate, and the trigger link is also provided with a second limiter, the second plate is located below the first plate, the trigger link passes through the second plate, the second limiter is located above the second plate, and the second limiter is used to limit the Y-direction and Z-direction displacement of the trigger unit.

[0014] Furthermore, the sliding unit includes a roller and a top block, the top block is fixedly connected to the lifting unit, and the roller is rotatably connected to the top block;

[0015] Before triggering, the roller abuts against the top block;

[0016] After being triggered, the trigger unit drives the roller to roll relative to the top block and separate from the top block.

[0017] Furthermore, the sliding unit includes a ball and a slider, the slider is fixedly connected to the lifting unit, and the ball is mounted on the slider;

[0018] Before triggering, the trigger unit abuts against the ball;

[0019] After being triggered, the trigger unit slides relative to the ball, and the trigger unit is separated from the ball.

[0020] Furthermore, the elastic unit is a spring, and the spring is installed below or above the lifting unit.

[0021] Furthermore, when the spring is below the lifting unit, a guide sleeve extends downward from the lower surface of the lifting unit, and the spring is installed in the guide sleeve.

[0022] Furthermore, when the spring is above the lifting unit, one end of the spring is connected to the lifting unit, and the other end is connected to the decorative plate.

[0023] Furthermore, the lower edge of the ceiling is provided with a flange, the lifting unit is located below the flange or in contact with the flange, the decorative panel includes a decorative panel body, and the decorative panel body is located below the ceiling; before triggering, the upper edge of the decorative panel body overlaps with the lower edge of the ceiling.

[0024] The above technical solution has the following beneficial effects:

[0025] Before triggering, the trigger unit and the sliding unit exert a downward force on the ejection unit, thereby maintaining the roof in an overlapping position with the trim panel. When the side curtain airbag is deployed, the trigger unit is triggered, releasing the force on the ejection unit. The ejection unit, under the action of the elastic unit, lifts the roof upward, separating the roof from the trim panel. During deployment, the side curtain airbag can smoothly escape through the gap between the two panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0027] Figure 1 This is a schematic diagram of the vehicle ceiling system in the first embodiment of the present invention after omitting the ceiling;

[0028] Figure 2 yes Figure 1 Schematic diagram on the back;

[0029] Figure 3 yes Figure 2 The schematic diagram after the jacking unit is omitted;

[0030] Figure 4 This is a schematic diagram of the interior ceiling system and the side curtain airbags before they are triggered in the first embodiment of the present invention;

[0031] Figure 5 1 is a schematic diagram of the internal structure of the vehicle ceiling system before and after triggering in the first embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of triggering the overlap of the front trim panel and the ceiling in the first embodiment of the present invention;

[0033] Figure 7 is a schematic diagram of triggering the separation of the rear trim panel and the ceiling in the first embodiment of the present invention;

[0034] Figure 8 Schematic diagram of the internal structure of the vehicle ceiling system in the first embodiment of the present invention;

[0035] Figure 9 is a partial enlarged view of the vehicle interior ceiling system in the first embodiment of the present invention;

[0036] Figure 10 is a schematic diagram of the trigger link and the roller in the first embodiment of the present invention;

[0037] Figure 11 is a partial enlarged view of the sliding unit in the first embodiment of the present invention;

[0038] Figure 12 is a partial enlarged view of the elastic unit in the first embodiment of the present invention;

[0039] Figure 13 Schematic diagram of the internal structure of the vehicle ceiling system in the second embodiment of the present invention;

[0040] Figure 14 is a partial enlarged view of the sliding unit in the second embodiment of the present invention;

[0041] Figure 15 It is a partial enlarged view of the ball and the slider in the second embodiment of the present invention.

[0042] Reference table of accompanying symbols:

[0043] Trim panel 1: first panel 11, second panel 12, trim panel body 13, trim panel guide post 14;

[0044] Roof 2: flange 21;

[0045] Trigger unit 3: trigger button 31, trigger link 32, first limiter 33, second limiter 34;

[0046] Sliding unit 4: roller 41, top block 42, ball 43, slider 44;

[0047] Lifting unit 5: guide sleeve 51;

[0048] Elastic unit 6 and side curtain airbag 10. DETAILED DESCRIPTION

[0049] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0050] It is easy to understand that according to the technical solution of the present invention, a variety of structural modes and implementation modes can be replaced with each other by those skilled in the art without changing the essential spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the invention.

[0051] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to the structure shown in the drawings. They are relative concepts and may vary depending on the location and usage of the device. Therefore, these or other directional terms should not be interpreted as restrictive.

[0052] Example 1:

[0053] See also Figure 1-12 , which is a schematic diagram of the vehicle interior ceiling system in Example 1 of the present invention.

[0054] The vehicle interior ceiling system includes a trim panel 1, a ceiling 2, a trigger unit 3, a sliding unit 4, a lifting unit 5, and an elastic unit 6;

[0055] The trigger unit 3 is mounted on the trim panel 1 and is connected to the sliding unit 4. The sliding unit 4 is capable of sliding relative to the lifting unit 5. The lifting unit 5 is connected to the elastic unit 6.

[0056] Before triggering, the trigger unit 3 and the sliding unit 4 exert a downward thrust on the lifting unit 5, the elastic unit 6 stores energy, and the decorative panel 1 overlaps the ceiling 2;

[0057] During the deployment of the side air curtain, the side air curtain 10 triggers the trigger unit 3, and the trigger unit 3 drives the sliding unit 4 to slide relative to the lifting unit 5, so that the trigger unit 3 and the sliding unit 4 no longer apply a downward thrust to the lifting unit 5. The elastic unit 6 drives the lifting unit 5 to move upward. After the lifting unit 5 docks with the ceiling 2, it lifts the ceiling 2 upward, and the ceiling 2 and the trim panel 1 are relatively separated.

[0058] Specifically, Figure 1-2 As shown, the trim panel 1 includes a first panel 11, a second panel 12, and a trim panel body 13. The trim panel body 13 covers the exterior of the vehicle's B-pillar, with the front of the trim panel body 13 facing the interior of the vehicle. The first and second panels 11, 12 are integrally formed with the trim panel body 13 and extend upward relative to the trim panel body 13. The trigger unit 3 is mounted on the first and second panels 11, 12. After the roof 2 overlaps the trim panel body 13, the first and second panels 11, 13 are hidden behind the back of the roof 2.

[0059] like Figure 4 As shown, the trigger unit 3 contacts the side curtain airbag 10 installed on the inner side of the roof 2, triggering the front side curtain airbag 10 to be folded and retracted.

[0060] Optionally, the trigger unit 3 may not be in contact with the side curtain airbag 10 before being triggered. The side curtain airbag 10 is only in contact with the trigger unit 3 and triggered after it is deployed.

[0061] like Figure 5 As shown, before triggering, the trigger unit 3 and the sliding unit 4 apply a downward thrust to the lifting unit 5, and the lifting unit 5 pushes the elastic unit 6 downward, and the elastic unit 6 stores energy.

[0062] like Figure 6 As shown, before being triggered, the lifting unit 5 and the ceiling 2 maintain a relatively fixed position relationship. At this time, the lifting unit 5 and the ceiling 2 are in a position of overlapping with the decorative panel 1 downward. The "overlap" here means that there is a certain amount of overlap at the connection between the ceiling 2 and the decorative panel 1, which reduces the gap between the ceiling 2 and the decorative panel 1 and makes the appearance quality of the ceiling 2 and the decorative panel 1 higher.

[0063] like Figure 5 As shown, when the vehicle is hit, the side air curtain 10 is ignited and deployed, pushing the trigger unit 3 downward. The trigger unit 3 drives the sliding unit 4 to slide relative to the lifting unit 5′ (indicating the lifting unit after being triggered). After the sliding unit 4 slides, the downward thrust on the lifting unit 5′ is released, and the lifting unit 5′ is lifted upward under the action of the elastic unit 6.

[0064] like Figure 7 As shown, after the lifting unit 5 is lifted upward, it docks with the roof 2 and drives the roof 2 upward, causing the roof 2 to separate from the trim panel 1. During deployment, the side curtain airbag 10 can smoothly escape from the gap between the roof 2 and the trim panel 1, facilitating the rapid deployment of the side curtain airbag 10 into the vehicle body and effectively protecting the human body. Furthermore, due to the docking structure formed between the roof 2 and the lifting unit 5, the side curtain airbag 10 can smoothly escape from the gap created by the relative separation of the roof 2 and the trim panel 1. The guiding effect of the docking relationship between the lifting unit 5 and the roof 2 reduces the impact on the trim panel 1, preventing damage to the human body caused by trim panel fragments.

[0065] In this embodiment, before triggering, the lifting unit 5 is in contact with the ceiling 2. Alternatively, before triggering, the lifting unit 5 may not be in contact with the ceiling 2. Only when the lifting unit 5 is lifted upwards does it dock with the ceiling 2.

[0066] Furthermore, if Figure 6-7 As shown, the lower edge of the ceiling 2 is provided with a flange 21, the lifting unit 5 is in contact with the flange 21, and the trim panel 1 includes a trim panel body 13, which is located below the ceiling 2; before triggering, the upper edge of the trim panel body 13 overlaps with the lower edge of the ceiling 2.

[0067] The flange 21 can ensure a certain overlap between the lower portion of the ceiling 2 and the decorative panel body 13 .

[0068] Optionally, the lifting unit 5 can also be located only below the flange 21 before being triggered. Only when the lifting unit 5 is lifted upwards, the lifting unit 5 is docked with the flange 21.

[0069] Furthermore, if Figure 8 As shown, the trigger unit 3 includes a trigger button 31 and a trigger link 32 . The trigger button 31 contacts the side air curtain 10 , and the trigger link 32 is connected to the sliding unit 4 .

[0070] Specifically, the trigger button 31 is a flat rectangular block or a circular structure, and has a sufficient area to contact the side curtain airbag 10. The trigger link 32 is a rod structure, connecting the trigger button 31 and the sliding unit 4.

[0071] The trigger button 31 is arranged at an angle to facilitate contact with the side air curtain 10; the trigger link 32 extends obliquely downward, bends, and then continues to extend vertically downward.

[0072] Optionally, the structures of the trigger key 31 and the trigger link 32 are not limited to Figure 8 The trigger key 31 can also be hemispherical, cylindrical, or other irregular shapes; the trigger link 32 can also be a curved rod or a straight rod.

[0073] Furthermore, if Figure 8 As shown, the trim panel 1 includes a first plate 11, and a first limiter 33 is provided on the trigger link 32. The trigger key 31 is installed on the first plate 11 and protrudes upward from the first plate 11. The first limiter 33 is located below the first plate 11 and is used to limit the height of the trigger key 31 protruding from the first plate 11.

[0074] Specifically, the first limit member 33 is a plate structure, the first limit member 33 is fixedly connected to the trigger link 32, the first limit member 33 is located below the first plate 11, the trigger link 32 passes through the first plate 11, and the trigger key 31 is located above the first plate 11.

[0075] The first limiting member 33 is located below the first plate 11 and is used to limit the height of the trigger key 31 protruding from the first plate 11 and to limit the trigger key 31 from escaping from the first plate 11 .

[0076] Optionally, the first limit member 33 can also be other structures, such as a limit protrusion, a mechanical limiter, or an electronic limiter, and is not limited to being installed on the trigger link 32 or below the first plate 11.

[0077] Furthermore, if Figure 8 As shown, the trim panel 1 also includes a second plate 12, and a second limit member 34 is also provided on the trigger link 32. The second plate 12 is located below the first plate 11, and the trigger link 32 passes through the second plate 12. The second limit member 34 is located above the second plate 12. The second limit member 34 is used to limit the Y-direction and Z-direction displacement of the trigger unit 3.

[0078] Specifically, the second stopper 34 is a stopper protrusion provided on the trigger link 32, and the second stopper 34 is located between the first plate 11 and the second plate 12. Since the trigger link 32 is arranged at an angle, when the second stopper 34 contacts the second plate 12, it can limit the Y-direction and Z-direction displacement of the trigger unit 3.

[0079] Optionally, the second limiting member 34 may also be other limiting members, such as a limiting plate, a mechanical limiter, or an electronic limiter. The second limiting member 34 may also be installed at other positions or components.

[0080] Further, if Figure 9-11 As shown, the sliding unit 4 includes a roller 41 and a top block 42, the top block 42 is fixedly connected to the lifting unit 5, and the roller 41 and the top block 42 are rotatably connected;

[0081] Before triggering, the roller 41 abuts against the top block 42;

[0082] After being triggered, the trigger unit 3 drives the roller 41 to roll relative to the top block 42 and separate from the top block 42 .

[0083] Specifically, Figure 10 As shown, the roller 41 is installed at the bottom end of the trigger link 32 , and the roller 41 is rotatably connected relative to the trigger link 32 .

[0084] Before triggering, the roller 41 abuts against the top block 42, which can transmit the downward thrust of the trigger unit 3 to the lifting unit 5;

[0085] After triggering, the trigger unit 3 is pushed downward, and the roller 41 moves toward the top block 42. Figure 11 The right side of the trigger unit 3 rolls and disengages from the top block 42. The trigger unit 3 no longer applies a downward thrust to the lifting unit 5.

[0086] In this embodiment, Figure 12 As shown, the lifting unit 5 is a plate-like structure, with a guide sleeve 51 extending downward from its lower surface. The elastic unit 6 is a spring, which is installed in the guide sleeve 51. The trim panel 1 also includes a trim panel guide post 14, which is integrally formed with the trim panel body 13. The spring sleeve is mounted on the outside of the trim panel guide post 14 and then inserted into the guide sleeve 51. The guide sleeve 51 and the trim panel guide post 14 guide the spring, while the guide sleeve 51 also acts as a compression spring.

[0087] In this embodiment, the trigger unit, sliding unit, lifting unit and elastic unit are arranged to keep the roof and the trim panel in an overlapping state before triggering; after triggering, the roof can be lifted upward to facilitate the side air curtain to detach from the ceiling, so that the human body can be protected in time; and the damage to the trim panel is reduced, avoiding injury to the human body, thereby improving safety performance.

[0088] Example 2:

[0089] The difference from the first embodiment is that the structure of the sliding unit 4 and the arrangement of the elastic unit 6 are different.

[0090] Specifically, Figure 13 As shown, when the spring is above the lifting unit 5 , one end of the spring is connected to the lifting unit 5 , and the other end is connected to the second plate 12 .

[0091] Before triggering, the spring is stretched; after triggering, the spring pulls the lifting unit 5 upward.

[0092] Optionally, the elastic unit 6 may also be other elastic members, such as an elastic rubber member, a spring sheet, etc.

[0093] Furthermore, if Figure 14-15 As shown, the sliding unit 4 includes a ball 43 and a slider 44. The slider 44 is fixedly connected to the lifting unit 5, and the ball 43 is mounted on the slider 44.

[0094] Before triggering, the trigger unit 3 abuts against the ball 43;

[0095] After being triggered, the trigger unit 3 slides relative to the ball 43 , and the trigger unit 3 is separated from the ball 43 .

[0096] Specifically, a slider 44 is fixedly mounted on the lifting unit 3, and a ball bearing 43 is rotatably connected to the slider 44. The bottom end of the trigger link 32 of the trigger unit 3 is flat. Before triggering, the bottom surface of the trigger link 42 abuts the ball bearing 43, allowing the downward thrust of the trigger unit 3 to be transmitted to the lifting unit 5. After triggering, the trigger link 32 slides relative to the ball bearing 43 until it disengages from the ball bearing 43, releasing the downward thrust of the trigger unit 3 on the lifting unit 5.

[0097] Alternatively, the sliding unit 4 may be any other structure that can ensure relative movement, such as a roller, a ball, a roller, a slider, etc. The ball or roller may also be mounted on the trigger link 32, sliding and disengaging relative to the slider or the top block together with the trigger link 32.

[0098] The in-vehicle ceiling system of the present invention can lift the ceiling after being triggered, eliminate the overlap between the ceiling and the trim panel, effectively reduce the squeezing pressure of the ceiling on the side air curtains, and ensure that the side air curtains can be smoothly removed from the ceiling; at the same time, the non-closed edges on the air curtain deployment path are eliminated (the overlapping structure is changed to a docking structure), and a guide structure is added for the deployment of the side air curtains to ensure that the side air curtains can be smoothly removed from the ceiling.

[0099] The above description is only the principle and preferred embodiment of the present invention. It should be noted that for those skilled in the art, several other variations can be made based on the principle of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A vehicle interior ceiling system, characterized in that: It includes a decorative panel, a roof, a trigger unit, a sliding unit, a lifting unit and an elastic unit; The trigger unit is mounted on the decorative plate, the trigger unit is connected to the sliding unit, the sliding unit is capable of sliding relative to the lifting unit, and the lifting unit is connected to the elastic unit; Before triggering, the trigger unit and the sliding unit apply a downward thrust to the lifting unit, the elastic unit stores energy, and the decorative panel overlaps the ceiling; During the deployment of the side curtain airbag, the side curtain airbag triggers the trigger unit, which drives the sliding unit to slide relative to the lifting unit, so that the trigger unit and the sliding unit no longer apply a downward thrust to the lifting unit. The elastic unit drives the lifting unit to move upward, and the lifting unit docks with the roof to lift the roof upward, separating the roof from the trim panel. The trigger unit includes a trigger button and a trigger link, wherein the trigger button is arranged below the side curtain airbag or in contact with the side curtain airbag, and the trigger link is connected to the sliding unit; The lower edge of the ceiling is provided with a flange, the lifting unit is located below the flange or in contact with the flange, the decorative panel includes a decorative panel body, and the decorative panel body is located below the ceiling; before triggering, the upper edge of the decorative panel body overlaps with the lower edge of the ceiling.

2. The vehicle interior ceiling system according to claim 1, characterized in that: The decorative panel includes a first plate, and the trigger link is also provided with a first limiter. The trigger key is installed on the first plate and protrudes upward from the first plate. The first limiter is located below the first plate and is used to limit the height of the trigger key protruding from the first plate.

3. The vehicle interior ceiling system according to claim 2, characterized in that: The decorative panel also includes a second plate, and a second limit member is also provided on the trigger link. The second plate is located below the first plate, and the trigger link passes through the second plate. The second limit member is located above the second plate. The second limit member is used to limit the Y and Z displacements of the trigger unit.

4. The vehicle interior ceiling system according to claim 1, characterized in that: The sliding unit includes a roller and a top block, the top block is fixedly connected to the lifting unit, and the roller is rotatably connected to the trigger unit; Before triggering, the roller abuts against the top block; After being triggered, the trigger unit drives the roller to roll relative to the top block and separate from the top block.

5. The vehicle interior ceiling system according to claim 1, characterized in that: The sliding unit includes a ball and a slider, the slider is fixedly connected to the lifting unit, and the ball is mounted on the slider; Before triggering, the trigger unit abuts against the ball; After being triggered, the trigger unit slides relative to the ball, and the trigger unit is separated from the ball.

6. The vehicle interior ceiling system according to claim 1, characterized in that: The elastic unit is a spring, and the spring is installed below or above the lifting unit.

7. The vehicle interior roof system according to claim 6, characterized in that: When the spring is below the lifting unit, a guide sleeve extends downward from the lower surface of the lifting unit, and the spring is installed in the guide sleeve.

8. The vehicle interior ceiling system according to claim 6, characterized in that: When the spring is above the lifting unit, one end of the spring is connected to the lifting unit, and the other end is connected to the decorative plate.

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