Vehicle seat

Abstract

The present application relates to a vehicle seat, which effectively shields the gap of the backrest angle adjuster area through a follow-up shielding mechanism without manual operation, thus improving the appearance and safety of the vehicle seat. The vehicle seat comprises a seat cushion including a seat cushion framework, a backrest including a backrest framework capable of rotating relative to the seat cushion framework through an angle adjuster, and a follow-up shielding mechanism including an angle adjuster cover, a shielding cover plate and a driving component, the angle adjuster cover is configured to shield the angle adjuster, the shielding cover plate is connected to the angle adjuster cover through a rotating shaft and is provided with a blocking part, and the driving component is arranged on the backrest framework and is configured to drive the shielding cover plate to rotate around the central axis of the rotating shaft relative to the angle adjuster cover by pushing the blocking part when the backrest framework rotates from a first position forming a first included angle with the seat cushion framework to a second position forming a second included angle with the seat cushion framework, so as to shield the gap between the angle adjuster cover and the seat cushion.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle components. More specifically, this invention relates to a vehicle seat with a follow-up shielding mechanism for the backrest adjuster area. Background Technology

[0002] As vehicle seats become more functional, an increasing number of vehicle seats can be folded back so that the front of the backrest is roughly flush with the top of the seat cushion, creating a bed-like configuration. For example... Figure 1A As shown, the defect of the vehicle seat in the prior art is that when the backrest 100 is flipped back at a large angle by the adjuster, the area of ​​the backrest adjuster will expose obvious gaps, such as the gap G between the adjuster cover 300 and the seat cushion 200 shown. This gap G not only affects the overall aesthetics of the vehicle seat, but may also cause foreign objects to fall in or hands to be pinched, posing a safety hazard. Summary of the Invention

[0003] The purpose of this invention is to provide a vehicle seat that effectively conceals the gap in the backrest adjuster area through a follow-up shielding mechanism, eliminating the need for manual operation and thus improving the aesthetics and safety of the vehicle seat.

[0004] Therefore, the present invention provides a vehicle seat, comprising: a seat cushion including a seat cushion frame; a backrest including a backrest frame, the backrest frame being rotatable relative to the seat cushion frame via an adjuster; and a follow-up shielding mechanism including an adjuster cover, a shielding cover plate, and a drive component, wherein the adjuster cover is configured to shield the adjuster, the shielding cover plate is connected to the adjuster cover via a pivot and is provided with a blocking portion, the drive component is disposed on the backrest frame and configured to, when the backrest frame rotates rearward from a first position forming a first angle with the seat cushion frame to a second position forming a second angle with the seat cushion frame, push the blocking portion to drive the shielding cover plate to rotate relative to the adjuster cover about the central axis of the pivot in a first direction, thereby shielding the gap between the adjuster cover and the seat cushion.

[0005] Based on the above-described technical concept, the present invention may further include any one or more of the following optional forms.

[0006] In some alternative configurations, in the first position, the front of the backrest forms a predetermined obtuse angle with the top surface of the seat cushion, and in the second position, the front of the backrest is approximately flush with the top surface of the seat cushion.

[0007] In some alternative configurations, the drive component is configured to move away from the blocking portion when the backrest frame is flipped forward from the first position.

[0008] In some alternative configurations, the vehicle seat further includes a first connecting plate and a second connecting plate, the first connecting plate being fixed to the backrest frame and connected to one end of the adjuster, and the second connecting plate being fixed to the seat cushion frame and connected to the other end of the adjuster, wherein the driving component is a push arm disposed on the first connecting plate.

[0009] In some alternative forms, one of the shielding cover and the angle adjuster cover is provided with the pivot, and the other of the shielding cover and the angle adjuster cover is provided with a shaft hole, the pivot being mounted to the shaft hole by a first fastener and being able to rotate in the shaft hole.

[0010] In some alternative forms, one of the shielding cover and the angle adjuster cover is provided with a guide post, and the other of the shielding cover and the angle adjuster cover is provided with an arc-shaped guide groove centered on the central axis of the shaft hole. The guide post is mounted to the guide groove by a second fastener and is able to slide along the guide groove.

[0011] In some alternative forms, the follow-up shielding mechanism is configured to allow the guide post to slide from one end of the guide groove to the other end of the guide groove when the backrest frame rotates from the first position to the second position.

[0012] In some alternative forms, the follow-up shielding mechanism further includes a reset component configured to drive the shielding cover to rotate relative to the adjuster cover about the central axis of the pivot in a second direction opposite to the first direction when the backrest frame rotates forward from the second position.

[0013] In some alternative forms, the reset component is a coil spring, with a first end of the coil spring connected to the angle adjuster cover and a second end of the coil spring connected to the shielding cover.

[0014] In some alternative forms, the shielding cover is provided with the pivot, and the angle adjuster cover is provided with the pivot hole. The follow-up shielding mechanism further includes a drive plate, the drive plate and the coil spring are provided on the side of the angle adjuster cover opposite to the shielding cover, wherein the drive plate is fixed to the pivot by the first fastener, and the second end of the coil spring is connected to the drive plate.

[0015] The beneficial technical effects of the vehicle seat according to the present invention are particularly evident in the addition of a drive component disposed on the backrest frame, an improved adjuster cover, and a shielding cover disposed on the adjuster cover. This allows for the automatic and effective shielding of the gap between the adjuster cover and the seat cushion, for example, when the backrest is flipped back so that the front of the backrest is approximately flush with the top surface of the seat cushion to form a double bed configuration. This enhances the aesthetics and safety of the vehicle seat. Furthermore, this follow-up shielding mechanism has a simple structure, is easy to install, and has a low cost, making it widely applicable to various types of vehicle seats. Attached Figure Description

[0016] Other features and advantages of the invention will be better understood through the following detailed description of preferred embodiments in conjunction with the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.

[0017] Figure 1A This is a schematic diagram showing a gap in the backrest adjuster area of ​​a vehicle seat in the double bed mode in the prior art.

[0018] Figure 1B This is a schematic diagram of the vehicle seat according to the present invention covering the aforementioned gap by means of a follow-up shielding mechanism.

[0019] Figure 2A This is a schematic diagram showing the installation position of the follow-up shielding mechanism on the vehicle seat.

[0020] Figure 2B This is a schematic diagram of the follow-up shielding mechanism installed on a vehicle seat.

[0021] Figure 3 This is a schematic diagram of the first and second connecting plates of a vehicle seat adjuster according to an embodiment of the present invention.

[0022] Figure 4 This is an exploded view of the vehicle's seat's adaptive shielding mechanism.

[0023] Figure 5 This is a three-dimensional view of the shielding cover plate of the follow-up shielding mechanism.

[0024] Figure 6 This is a three-dimensional view of the angle adjuster cover of the follow-up shielding mechanism.

[0025] Figure 7 This is a schematic diagram showing the fit between the shielding cover and the angle adjuster cover.

[0026] Figure 8A and Figure 8B This is a schematic diagram showing the installation of the coil spring and drive plate on the adjuster cover.

[0027] Figure 8CThis is a schematic diagram showing the fit between the coil spring and the angle adjuster cover.

[0028] Figure 8D This is a 3D view of the driver board.

[0029] Figure 8E This is a schematic diagram showing the interaction between the coil spring and the drive plate.

[0030] Figures 9A to 9E These are schematic diagrams showing the various states of the follow-up shielding mechanism when the seat cushion and backrest of the vehicle are in different positions.

[0031] The elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to exact scale. It should be understood that these drawings are not only for explaining and illustrating the invention, but also, where necessary, for defining the invention. Detailed Implementation

[0032] The implementation and use of specific embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of particular ways of implementing and using the invention, and are not intended to limit the scope of the invention.

[0033] In this specification, the descriptions of the structural positions of various components, such as up, down, front, back, horizontal, vertical, clockwise, and counterclockwise, are not absolute but relative. These directional descriptions are appropriate when the components are positioned as shown in the figures, but they should be changed accordingly when the positions of the components change.

[0034] In this specification, unless otherwise expressly specified and limited, terms such as "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0035] In this specification, the terms “first”, “second”, etc., are used to describe various elements without intending to limit the positional, temporal, or importance relationships of these elements; such terms are only used to distinguish one element from another.

[0036] The purpose of this invention is to provide a vehicle seat to overcome... Figure 1A The defect shown is as described. Figure 1BAs shown, in the vehicle seat according to the present invention, when the backrest 100 is flipped back at a large angle by the angle adjuster to form, for example, a double bed mode, the gap G between the angle adjuster cover 300 and the seat cushion 200 can be covered by the follow-up rotation of the cover plate 400 of the follow-up cover mechanism, thereby ensuring the aesthetics and safety of the vehicle seat in this state and preventing foreign objects from falling or hands from being pinched due to the presence of the gap G.

[0037] More specifically, in combination Figure 1B , Figure 2A , Figure 2B and Figure 3 As shown, the vehicle seat according to the present invention includes a backrest 100, a seat cushion 200, an adjuster cover 300, a shielding cover 400, and an adjuster 500. The seat cushion 200 includes a seat cushion frame, which includes a bottom frame frame 210 and a connecting rod 230 (see reference). Figures 9A to 9E The upper frame 220 is connected to the lower frame 210, which is slidably connected to the vehicle floor, for example, via a lower seat rail. The upper frame 220 can be slightly raised and moved forward relative to the lower frame 210 via a link 230. The backrest 100 includes a backrest frame 110, which is rotatably connected to the seat cushion frame via an adjuster 500, more specifically to the lower frame 210, to achieve angle adjustment of the backrest 100 by rotation relative to the seat cushion frame. In the illustrated embodiment, the backrest 100 includes a first connecting plate 120, which is fixed to the backrest frame 110 by means such as welding and has a first connecting hole 121. The seat cushion 200 includes a second connecting plate 240, which is fixed to the bottom frame frame 210 by means such as screws and has a second connecting hole 241. One end of the adjuster 500 is connected to the first connecting hole 121, and the other end of the adjuster 500 is connected to the second connecting hole 241. That is, the first connecting plate 120 constitutes the upper connecting plate of the adjuster 500, and the second connecting plate 240 constitutes the lower connecting plate of the adjuster 500. The adjuster cover 300 is connected to the seat cushion frame and covers the adjuster 500 to prevent the adjuster 500 from being exposed in the carriage and affecting the aesthetics. For example, the adjuster cover 300 can be fixed to the outside of the second connecting plate 240 by means of screws and / or snap-fit. The shielding cover 400 is connected to the outside of the adjuster cover 300 via a pivot 411, and can rotate relative to the adjuster cover 300 about the central axis of the pivot 411 under the drive of a drive component mounted on the backrest frame 110. Therefore, the adjuster cover 300, the shielding cover 400, and the drive component together constitute the follow-up shielding mechanism for the backrest adjuster area of ​​the vehicle seat (see reference). Figure 2A and Figure 2B(The area within the dashed box in the text). According to one embodiment, the backrest frame 110 can also be rotatably connected to the seat base via the adjuster 500, meaning that the backrest frame 110 can rotate independently of the seat cushion frame but relative to it. In this case, the adjuster cover 300 is also connected to the seat base and conceals the adjuster 500.

[0038] like Figures 4 to 7As shown, in this embodiment, the adjuster cover 300 includes a generally flat first body 310 and a flange 320 extending generally perpendicularly from the edge of the first body 310. The first body 310 is provided with a shaft hole 311 and an optional arc-shaped guide groove 312 centered on the center of the shaft hole 311. Correspondingly, the shielding cover 400 includes a generally flat second body 410 arranged parallel to the first body 310, an extension 420 extending generally perpendicularly from a portion of the edge of the second body 410, and a bent portion 430 extending generally parallel to the second body 410 from the end of the extension 420. The second body 410 is provided with a pivot 411 and an optional guide post 412. The pivot 411 is mounted to the shaft hole 311 by a first fastener and is rotatable in the shaft hole 311. The guide post 412 is mounted to the guide groove 312 by a second fastener and is slidable along the guide groove 312. Preferably, the rotating shaft 411 has a first screw hole, and the first fastener includes a first screw 710 screwed into the first screw hole and a first washer 720 sandwiched between the head of the first screw 710 and the rotating shaft 411. Similarly, preferably, the guide post 412 has a second screw hole, and the second fastener includes a second screw 610 screwed into the second screw hole and a second washer 620 sandwiched between the head of the second screw 610 and the guide post 412. It is understood that the positions of the shaft hole 311 and the rotating shaft 411 can be interchanged; that is, the rotating shaft 411 can be placed on the first body 310 of the adjuster cover 300, while the shaft hole 311 can be placed on the second body 410 of the shielding cover 400. Similarly, the positions of the guide groove 312 and the guide post 412 can be interchanged. That is, the guide post 412 can be set on the first body 310 of the adjuster cover 300, while the guide groove 312 is set on the second body 410 of the shielding cover 400. In addition, in this embodiment, the bent portion 430 of the shielding cover 400 is provided with a blocking portion, such as the protruding post 431 shown, and the driving component of the follow-up shielding mechanism is preferably a push arm 122 integrally set on the first connecting plate 120. Therefore, when the backrest frame 110 is flipped backward relative to the bottom frame frame 210 via the adjuster 500, if the push arm 122 contacts the protrusion 431, the push arm 122 can drive the shielding cover 400 to rotate relative to the adjuster cover 300 about the central axis of the pivot 411 in a first direction. Simultaneously, the guide post 412 can slide between the two ends of the guide groove 312 to provide guidance for the rotation of the shielding cover 400. It is understood that the location of the drive component is not limiting; according to other embodiments of the invention, the drive component can be directly disposed at any suitable location on the backrest frame 110.

[0039] The follow-up shielding mechanism preferably also includes a reset component for driving the shielding cover 400 to rotate relative to the adjuster cover 300 about the central axis of the pivot 411 in a second direction opposite to the first direction when the backrest frame 110 is flipped forward to reset, thereby achieving the reset of the shielding cover 400. Figures 8A to 8E As shown, the reset component is, for example, a coil spring 730. The first end 731 of the coil spring 730 is connected to the adjuster cover 300, and the second end 732 of the coil spring 730 is connected to a pivot 411 on the shielding cover 400. More specifically, in this embodiment, a first locking pin 313 is provided on the first body 310 of the adjuster cover 300, and the first end 731 of the coil spring 730 engages with the first locking pin 313. Furthermore, the follow-up shielding mechanism may optionally include a drive plate 740. The drive plate 740 and the coil spring 730 are disposed on the side of the adjuster cover 300 opposite to the shielding cover 400. The drive plate 740 includes, for example, a circular base plate 741 and a central protrusion 742 and a second locking pin 743 protruding from the same side surface of the base plate 741, such that the drive plate 740 can be fixed to the pivot 411, for example, by a first screw 710 passing through the base plate 741. In other words, by tightening the first screw 710, the first washer 720 can be clamped between the head of the first screw 710 and the surface of the substrate 741 facing away from the central protrusion 742. The rotating shaft 411, passing through the shaft hole 311, can extend into the central hole of the central protrusion 742 and tightly abut against the substrate 741, allowing the drive plate 740 to rotate synchronously with the rotating shaft 411. A coil spring 730 is disposed around the central protrusion 742, and the second end 732 of the coil spring 730 engages with the second locking pin 743. Therefore, when the drive plate 740 rotates along the first direction with the rotating shaft 411, the drive plate 740 can drive the second end 732 of the coil spring 730 to move, thereby deforming the coil spring 730 to accumulate elastic potential energy. It is understood that the placement of the coil spring 730 is not restrictive. For example, according to one implementation variation, the coil spring 730 can also be disposed between the adjuster cover 300 and the shielding cover 400, simply by connecting the first end 731 of the coil spring 730 to the adjuster cover 300 and the second end 732 of the coil spring 730 to the shielding cover 400.

[0040] The following uses Figures 9A to 9E To describe in detail the working principle of the vehicle seat's follow-up shielding mechanism. Figures 9A to 9E For the vehicle seat from Figure 9A The design shows the passenger mode switching to Figure 9E The process shown is the double bed mode. Similarly, the vehicle seats can also be adjusted from... Figure 9E The large bed mode shown is reversed and reset to... Figure 9A The design of the seating mode is shown.

[0041] like Figure 9A As shown, in the designed seating mode, the seat cushion frame of the vehicle seat remains stationary, meaning the upper frame 220 is in a low position relative to the lower frame 210 and does not move relative to it. At this time, the backrest frame 110 is connected to the lower frame 210 via the adjuster 500, allowing the backrest 100 to be adjusted in the seating position by flipping the backrest frame 110 forward and backward, thereby meeting the passenger's seating comfort needs. It is understood that when the angle of the backrest 100 is within this comfort adjustment range, the push arm 122 (i.e., the drive component) will not contact the protrusion 431 (i.e., the blocking part), meaning the cover plate 400 remains stationary relative to the adjuster cover 300 and does not rotate.

[0042] When switching to the king-size bed mode, firstly, the upper frame 220 of the seat cushion 200 is slightly raised and moved forward relative to the bottom frame 210 via the connecting rod 230, until the upper frame 220 reaches... Figure 9B The high position is shown. Then, the backrest frame 110 and the first connecting plate 120 are flipped backward relative to the bottom frame frame 210 by the angle adjuster 500 until the first connecting plate 120 reaches the high position. Figure 9C The first position is shown. In this first position, the push arm 122 begins to contact the protrusion 431, and at this time, the front surface of the backrest 100 (i.e., the surface facing the passenger) forms a first angle with the top surface of the seat cushion 200, that is, a predetermined first obtuse angle, for example, between 120° and 150°. In other words, in this first position, the front surface of the backrest 100 is flipped backward relative to the vertical position by a predetermined angle, for example, between 30° and 60°. Then, the backrest frame 110 and the first connecting plate 120 continue to be flipped backward relative to the bottom frame frame 210 by the angle adjuster 500 until the first connecting plate 120 is... Figure 9D After reaching the middle position shown Figure 9E The second position is shown. In this second position, the front of the backrest 100 and the top surface of the seat cushion 200 form a second angle, for example, the front of the backrest 100 and the top surface of the seat cushion 200 are approximately flush to form a double bed mode, that is, the front of the backrest 100 is rotated to a roughly horizontal position. During the rotation of the backrest frame 110 from the first position to the second position, the push arm 122 and the protrusion 431 remain in contact, so that the push arm 122 can drive the cover plate 400 relative to the adjuster cover 300 about the central axis of the pivot 411 in the first direction (i.e., Figures 9A to 9EThe cover plate 400 rotates clockwise, thereby enabling it to cover the gap G between the adjuster cover 300 and the seat cushion 200 in the second position, thus improving the aesthetics and safety of the vehicle seat in this state. Furthermore, during the rotation of the backrest frame 110 from the first position to the second position, the guide post 412 slides from the first end of the guide groove 312 to the second end of the guide groove 312, providing guidance for the rotation of the cover plate 400 and providing end-position limiting of the rotation of the cover plate 400. It is understood that damping elements can be provided on the guide post 412 or at both ends of the guide groove 312 to provide cushioning and noise reduction. In addition, as mentioned earlier, the rotation of the cover plate 400 in the first direction can cause the coil spring 730 (i.e., the reset component) to deform and accumulate elastic potential energy.

[0043] When it is necessary to return to the designed seating mode, the backrest frame 110 and the first connecting plate 120 are adjusted relative to the bottom frame frame 210 via the angle adjuster 500. Figure 9E The second position shown flips forward, at which point the coil spring 730 can drive the shielding cover 400 relative to the adjuster cover 300 about the central axis of the pivot 411 in a second direction opposite to the first direction (i.e., ... Figures 9A to 9E The cover plate 400 is rotated counterclockwise to reset the backrest frame 110. During the reset process, the guide post 412 slides from the second end of the guide groove 312 to the first end of the guide groove 312 to guide the rotation of the cover plate 400 and to limit the rotation of the cover plate 400 at the end, preventing the cover plate 400 from colliding with the adjuster cover 300 (more specifically, the extension 420 of the cover plate 400 and the flange 320 of the adjuster cover 300). When the backrest frame 110 is reset to its original position... Figure 9C In the first position shown, the cover plate 400 completes its reset and stops rotating, while the backrest frame 110 can continue to flip forward from this first position until... Figure 9B The position is indicated, and during this process, the push arm 122 moves away from the protrusion 431. Then, the upper frame 220 of the seat cushion returns to its original position via the connecting rod 230 until the vehicle seat is fully returned to its original position. Figure 9A The design of the seating mode is shown.

[0044] The technical content and features of the present invention have been disclosed above. However, it is understood that under the creative concept of the present invention, those skilled in the art can make various flexible changes and improvements to the above-disclosed concept, but all of them fall within the protection scope of the present invention.

[0045] The above description of the embodiments is exemplary and not restrictive, and the scope of protection of the present invention is determined by the claims.

Claims

1. A vehicle seat, characterized in that, include: Seat cushion, including the seat cushion frame; A backrest, including a backrest frame, the backrest frame being rotatable relative to the seat cushion frame via an adjuster; as well as The follow-up shielding mechanism includes an angle adjuster cover, a shielding cover plate, and a drive component, wherein, The angle adjuster cover is configured to shield the angle adjuster. The shielding cover is connected to the angle adjuster cover via a pivot and is provided with a blocking part. The drive component is disposed on the backrest frame and configured such that when the backrest frame rotates backward from a first position forming a first angle with the seat cushion frame to a second position forming a second angle with the seat cushion frame, it pushes the blocking part to drive the shielding cover to rotate relative to the adjuster cover about the central axis of the rotating shaft in a first direction, so as to shield the gap between the adjuster cover and the seat cushion.

2. The vehicle seat according to claim 1, characterized in that, In the first position, the front of the backrest forms a predetermined obtuse angle with the top surface of the seat cushion, and in the second position, the front of the backrest is approximately flush with the top surface of the seat cushion.

3. The vehicle seat according to claim 1, characterized in that, The drive component is configured to move away from the blocking portion when the backrest frame is flipped forward from the first position.

4. The vehicle seat according to claim 1, characterized in that, The vehicle seat further includes a first connecting plate and a second connecting plate. The first connecting plate is fixed to the backrest frame and connected to one end of the adjuster. The second connecting plate is fixed to the seat cushion frame and connected to the other end of the adjuster. The driving component is a push arm disposed on the first connecting plate.

5. The vehicle seat according to claim 1, characterized in that, One of the shielding cover and the angle adjuster cover is provided with the pivot, and the other of the shielding cover and the angle adjuster cover is provided with the shaft hole. The pivot is installed to the shaft hole by a first fastener and is able to rotate in the shaft hole.

6. The vehicle seat according to claim 5, characterized in that, One of the shielding cover and the angle adjuster cover is provided with a guide post, and the other of the shielding cover and the angle adjuster cover is provided with an arc-shaped guide groove centered on the central axis of the shaft hole. The guide post is installed to the guide groove by a second fastener and can slide along the guide groove.

7. The vehicle seat according to claim 6, characterized in that, The follow-up shielding mechanism is configured such that when the backrest frame rotates from the first position to the second position, the guide post slides from one end of the guide groove to the other end of the guide groove.

8. The vehicle seat according to claim 5, characterized in that, The follow-up shielding mechanism further includes a reset component configured to drive the shielding cover to rotate relative to the adjuster cover about the central axis of the pivot in a second direction opposite to the first direction when the backrest frame rotates forward from the second position.

9. The vehicle seat according to claim 8, characterized in that, The reset component is a coil spring, with a first end connected to the angle adjuster cover and a second end connected to the shielding cover.

10. The vehicle seat according to claim 9, characterized in that, The shielding cover is provided with the rotating shaft, and the angle adjuster cover is provided with the shaft hole. The follow-up shielding mechanism also includes a drive plate. The drive plate and the coil spring are provided on the side of the angle adjuster cover opposite to the shielding cover. The drive plate is fixed to the rotating shaft by the first fastener, and the second end of the coil spring is connected to the drive plate.

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