Automobile seat capable of forming bed

Abstract

The invention relates to the technical field of automobile seats, and discloses an automobile seat capable of forming a bed, which comprises a seat cushion group and a backrest group, the seat cushion group comprises a seat cushion framework, a main seat cushion and an extension seat cushion, and the first driving module can drive the main seat cushion to lift the rear end of the main seat cushion to be at the same height as the front end of the main seat cushion; the second driving module can drive the extension seat cushion to rotate relative to the main seat cushion; the backrest group comprises a support and a backrest main body; the third driving module can drive the backrest main body to rotate; when the automobile seat is switched into a bed, the backrest set is located at the rear end of the seat cushion set, and a gap exists between the backrest set and the main seat cushion. The third driving module drives the backrest main body to lie backwards; the first driving module drives the rear end of the main seat cushion to lift; the second driving module drives the extending seat cushion to rotate, the gap is filled with the extending seat cushion, and the main seat cushion and the backrest body are connected to be flat. The automobile seat has the advantages that the automobile seat can be used as a bed, the structure is simple, the bed forming operation is convenient, and the comfort is good after the bed is formed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to a bed-forming automobile seat. BACKGROUND

[0002] In many vehicle models, the automobile seat is provided with a one-key bed-forming function to facilitate passengers to lie on the bed-formed automobile seat for rest.

[0003] In the existing mainstream bed-forming methods: one is to remove the headrest of the front seat, and then the backrest of the front seat is turned over backward to form a bed with the rear seat. The other is to turn the second and third seats forward to form a bed. In the first bed-forming method, there is a gap between the front seat and the rear seat after bed-forming, and between the backrest and the seat cushion of the front seat, which affects the comfort of passengers, and generally requires additional components to level. In the second bed-forming method, multiple steps are required, which is complicated, and the back side of the backrest contacts the passenger after bed-forming, which is not comfortable. SUMMARY

[0004] In view of the above problems in the prior art, the technical problem to be solved by the present application is to provide a bed-forming automobile seat which can form a bed by itself, has a simple structure, is convenient to operate, and is comfortable after bed-forming.

[0005] The technical solution adopted by the present application to solve the technical problem is to provide a bed-forming automobile seat, comprising:

[0006] The seat cushion group and the backrest group are both arranged on the automobile body, and at least one of them can slide forward and backward on the automobile body;

[0007] The seat cushion group comprises a seat cushion framework, a main seat cushion and an extension seat cushion, the seat cushion framework is provided with a first driving module, the main seat cushion is movably arranged on the seat cushion framework and connected with the first driving module, the first driving module can drive the main seat cushion to lift the rear end of the main seat cushion to the same height as the front end of the main seat cushion, and the extension seat cushion is rotatably arranged at the rear end of the main seat cushion, the main seat cushion is provided with a second driving module, and the second driving module is connected with the extension seat cushion, the second driving module can drive the extension seat cushion to rotate relative to the main seat cushion;

[0008] The backrest group comprises a support and a backrest body, the backrest body is rotatably arranged on the support, and the backrest group is provided with a third driving module, the third driving module is connected with the backrest body and can drive the backrest body to rotate;

[0009] When the car seat is switched into a bed: the backrest group is at the rear end of the seat cushion group, and there is a gap between the backrest group and the main seat cushion; the third drive module drives the backrest body to lie down backward; the first drive module drives the rear end of the main seat cushion to lift up; the second drive module drives the extension seat cushion to rotate, and the extension seat cushion fills the gap to connect the main seat cushion and the backrest body.

[0010] Further, the first drive module is configured as a first screw rod motor, and the first screw rod motor has a first telescopic end;

[0011] The rear end of the main seat cushion is provided with a first connecting bracket rotatably connected thereto, and the first connecting bracket is hinged to the first telescopic end;

[0012] When the first telescopic end extends, the rear end of the main seat cushion is driven to lift up; when the first telescopic end retracts, the rear end of the main seat cushion is driven to descend.

[0013] Further, the second drive module is configured as a second screw rod motor, and the second screw rod motor has a second telescopic end;

[0014] The extension seat cushion is provided with a second connecting bracket rotatably connected thereto, and the second connecting bracket is hinged to the second telescopic end;

[0015] When the second telescopic end extends, the extension seat cushion is driven to rotate upward relative to the main seat cushion; when the second telescopic end retracts, the extension seat cushion is driven to rotate downward relative to the main seat cushion.

[0016] Further, the rear end of the main seat cushion is configured with a connecting rod;

[0017] The extension seat cushion includes a first U-shaped bracket and a second U-shaped bracket, both ends of the first U-shaped bracket are rotatably connected to both ends of the connecting rod respectively; the second U-shaped bracket is arranged on the inner side of the first U-shaped bracket, and both ends of the second U-shaped bracket are fixedly connected to both ends of the first U-shaped bracket respectively;

[0018] The second connecting bracket is connected to the middle part of the second U-shaped bracket.

[0019] Further, the main seat cushion has multiple passenger seating areas side by side, and multiple passengers can be seated on the multiple passenger seating areas;

[0020] One end of the seat cushion framework close to the connecting rod is provided with one of the first drive modules, and the other end of the seat cushion framework close to the connecting rod is provided with another one of the first drive modules;

[0021] The first connecting support is rotatably connected with the connecting rod, and each of the two ends of the connecting rod is provided with a first connecting support.

[0022] Further, after the car seat is turned into a bed, the rear end of the main seat cushion is level with the front end of the main seat cushion, and both are in a horizontal state; the extension seat cushion is horizontally arranged at the rear end of the main seat cushion.

[0023] Further, the front end of the main seat cushion is provided with a leg support group, which includes a leg support, a connecting rod mechanism and a third screw motor; the third screw motor is arranged at the front end of the main seat cushion and connected with the connecting rod mechanism; the leg support is installed at the front end of the main seat cushion through the connecting rod mechanism;

[0024] The third screw motor can drive the leg support to unfold forward through the connecting rod mechanism, so that the leg support is level with the front end of the main seat cushion; and can drive the leg support to fold backward through the connecting rod mechanism, so that the leg support is folded onto the main seat cushion.

[0025] Further, the third drive module includes a first motor, a first synchronous rod and a first angle adjuster;

[0026] The backrest group includes two supports arranged at intervals, and each side of the backrest body is provided with a first angle adjuster between the two supports; the two ends of the first synchronous rod are connected with the two first angle adjusters respectively;

[0027] The first motor drives the first angle adjuster through the first synchronous rod, so that the backrest body rotates relative to the two supports.

[0028] Further, the backrest body includes an upper backrest, a middle transfer support, a second motor, a second synchronous rod and a second angle adjuster;

[0029] Each of the two supports is provided with a middle transfer support, and the first angle adjuster is arranged between the support and the middle transfer support;

[0030] Each of the two middle transfer supports is provided with a second angle adjuster relative to the upper backrest; the two ends of the second synchronous rod are connected with the two second angle adjusters respectively;

[0031] The second motor drives the second angle adjuster through the second synchronous rod, so that the upper backrest rotates relative to the middle transfer support.

[0032] Furthermore, the vehicle body is equipped with a first electric slide rail and a second electric slide rail, the seat cushion assembly is mounted on the first electric slide rail, the backrest assembly is mounted on the second electric slide rail, and the first electric slide rail and the second electric slide rail can respectively drive the seat cushion assembly and the backrest assembly to slide back and forth.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] In this invention, the seat cushion assembly includes a seat cushion frame, a main seat cushion, and an extension seat cushion. The extension seat cushion is rotatably mounted at the rear end of the main seat cushion. In the normal seating mode of the car seat, the extension seat at the rear end of the main seat cushion is folded down below the backrest and at the rear end of the main seat cushion. When the car seat is assembled into a bed, a third drive module drives the backrest body to recline backward; a first drive module drives the rear end of the main seat cushion to rise, making the rear end of the main seat cushion level with the front end; a second drive module drives the extension seat cushion to rotate upward, filling the gap between the main seat cushion and the backrest body, connecting the main seat cushion and the backrest body level, ensuring that the car seat is seamless after being assembled into a bed, thereby improving passenger comfort. No additional leveling components are needed; the car seat itself can be assembled into a bed without needing to cooperate with other seats, and the structure is simple and the assembly operation is convenient.

[0035] In this invention, the extension seat cushion includes a first U-shaped bracket and a second U-shaped bracket fixedly connected to each other, ensuring that the extension seat cushion has sufficient rigidity and strength. The car seat can be used or not in a specific seating position. The main seat cushion, however, must be used, therefore requiring higher strength. The rear end of the main seat cushion is raised by two first lead screw motors synchronously driving the left and right sides of the main seat cushion, while the extension seat cushion is driven by a second lead screw motor.

[0036] In this invention, a leg support assembly is also provided at the front end of the main seat cushion. The third screw motor in the leg support assembly can drive the leg support to unfold forward through a linkage mechanism, so that the leg support is flush with the front end of the main seat cushion. After the car seat is assembled into a bed, the length of the bed can be increased, thereby providing passengers with a larger rest area and activity space. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the seat cushion assembly, leg support assembly, and first electric slide rail in this invention;

[0038] Figure 2 for Figure 1 A structural diagram from another perspective;

[0039] Figure 3 for Figure 1 A floor plan;

[0040] Figure 4 for Figure 3A perspective view of the automobile seat in a bed state;

[0041] Figure 5 A perspective view of the automobile seat in a bed state; Figure 4

[0042] Figure 6 A perspective view of the automobile seat in a bed state;

[0043] Figure 7 A perspective view of the automobile seat in a bed state; Figure 6 A perspective view of the automobile seat in a bed state;

[0044] Figure 8 A perspective view of the automobile seat in a bed state; Figure 6

[0045] Figure 9 A perspective view of the automobile seat in a bed state. Figure 8 In the figure:

[0046] 1, seat cushion group; 10, seat cushion framework; 11, main seat cushion; 110, first connecting bracket; 111, connecting rod; 12, extended seat cushion; 120, second connecting bracket; 121, first U-shaped bracket; 122, second U-shaped bracket; 13, first driving module; 130, first telescopic end; 14, second driving module; 140, second telescopic end; 150, gap;

[0047] 2, backrest group; 20, support; 21, backrest body; 210, upper backrest; 211, transfer bracket; 212, second motor; 213, second synchronous rod; 214, second angle adjuster; 22, third driving module; 220, first motor; 221, first synchronous rod; 222, first angle adjuster;

[0048] 3, leg support group; 30, leg support; 31, connecting rod mechanism; 32, third screw motor;

[0049] 4, first electric sliding rail;

[0050] 5, second electric sliding rail.

[0051] DETAILED DESCRIPTION The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.​​

[0054] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0057] This embodiment describes a car seat that can be converted into a bed, typically used in the rear seats of five-seater vehicles and the third row of seats in seven-seater vehicles, such as in some MPVs and SUVs. Generally, no additional seat is installed behind this car seat; its extended seat cushion 12 is located near the car's trunk for easy storage, and the extended seat cushion 12 is less likely to get dirty by passengers.

[0058] like Figures 6-9 As shown, a car seat that can be converted into a bed in this embodiment mainly includes: a seat cushion assembly 1, a backrest assembly 2, and a leg support assembly 3. Both the seat cushion assembly 1 and the backrest assembly 2 are mounted on the car body, and at least one of them can slide back and forth on the car body.

[0059] In this embodiment, the seat cushion assembly 1 can slide back and forth on the vehicle body independently; the backrest assembly 2 can slide back and forth on the vehicle body independently; or both the seat cushion assembly 1 and the backrest assembly 2 can slide back and forth on the vehicle body. Preferably, in this embodiment, both the seat cushion assembly 1 and the backrest assembly 2 can slide back and forth on the vehicle body.

[0060] Specifically, in the embodiment, the first electric slide rail 4 and the second electric slide rail 5 are arranged on the car body respectively, the seat cushion group 1 is arranged on the first electric slide rail 4, and specifically, the seat cushion group 1 is arranged on the upper slide rail of the first electric slide rail 4, the upper slide rail is slidably arranged on the lower slide rail, the first electric slide rail 4 can drive the upper slide rail to slide forward and backward along the lower slide rail, and thus the seat cushion group 1 slides forward and backward along with the upper slide rail.

[0061] The backrest group 2 is arranged on the second electric slide rail 5, and specifically, the backrest group 2 is arranged on the upper slide rail of the second electric slide rail 5, the upper slide rail is slidably arranged on the lower slide rail, the second electric slide rail 5 can drive the upper slide rail to slide forward and backward, and thus the backrest group 2 slides forward and backward along with the upper slide rail. That is, the first electric slide rail 4 and the second electric slide rail 5 respectively drive the seat cushion group 1 and the backrest group 2 to slide forward and backward on the car body. In the embodiment, only the mode that the seat cushion group 1 and the backrest group 2 can slide forward and backward is further described in detail, and the other two modes are not described again. Moreover, the electric slide rail is prior art in the existing car seat, and thus is not described again.

[0062] In the embodiment, the seat cushion group 1 comprises a seat cushion framework 10, a main seat cushion 11 and an extension seat cushion 12, the seat cushion framework 10 is provided with a first driving module 13, the main seat cushion 11 is movably arranged on the seat cushion framework 10 and connected with the first driving module 13, the first driving module 13 can drive the main seat cushion 11 to lift the rear end of the main seat cushion 11 to the same height as the front end of the main seat cushion 11, and in the normal sitting posture, the height of the front end of the main seat cushion 11 is generally higher than that of the rear end to ensure the comfort of the passenger. After the bed is formed, the front and rear ends of the main seat cushion 11 are flat, and the comfort of the passenger is higher. The extension seat cushion 12 is rotatably arranged at the rear end of the main seat cushion 11, the main seat cushion 11 is provided with a second driving module 14, and the second driving module 14 is connected with the extension seat cushion 12, and the second driving module 14 can drive the extension seat cushion 12 to rotate relative to the main seat cushion 11.

[0063] In the normal sitting posture, the user generally does not need to use the extension seat cushion 12, so the extension seat cushion 12 is folded at the rear end of the main seat cushion 11. Of course, the user can choose to use the extension seat cushion 12 in the sitting posture to increase the area of the seat cushion.

[0064] In the embodiment, the backrest group 2 comprises a support 20 and a backrest body 21, the backrest body 21 is rotatably arranged on the support 20, the backrest group 2 is provided with a third driving module 22, the third driving module 22 is connected with the backrest body 21 and can drive the backrest body 21 to rotate to realize the adjustable inclination of the backrest body 21.

[0065] When the car seat is switched into bed: the backrest group 2 is at the rear end of the seat cushion group 1, and there is a gap 150 between the backrest body 21 and the main seat cushion 11. The third drive module 22 drives the backrest body 21 to lie down backward, that is, the backrest body 21 rotates backward to be substantially horizontal. The first drive module 13 drives the rear end of the main seat cushion 11 to be lifted, so that the rear end and the front end of the main seat cushion 11 are consistent in height, and are substantially horizontal. The second drive module 14 drives the extension seat cushion 12 to rotate, and the extension seat cushion 12 fills the gap 150 to connect the main seat cushion 11 and the backrest body 21, and the extension seat cushion 12 is also substantially horizontal at this time.

[0066] That is, after the car seat is switched into bed, the front end and the rear end of the main seat cushion 11, the extension seat cushion 12 and the backrest body 21 are substantially horizontal, the extension seat cushion 12 connects the main seat cushion 11 and the backrest body 21, and there is no need to additionally set a leveling component. Further, when the passenger lies on the car seat, the sitting surface of the main seat cushion 11 faces upward and can contact the passenger, and the leaning surface of the backrest body 21 faces upward and can contact the passenger, and the sitting surface of the main seat cushion 11 and the leaning surface of the backrest body 21 are both comfortable surfaces, and contacting the passenger can improve the comfort of the passenger, instead of the back of the main seat cushion 11 or the back of the backrest body 21 facing upward.

[0067] After the car seat in the embodiment is switched into bed, the rear end of the main seat cushion 11 is consistent with the front end of the main seat cushion 11, and both are in a horizontal state, the extension seat cushion 12 is arranged horizontally at the rear end of the main seat cushion 11, and the backrest body 21 is arranged horizontally at the rear end of the extension seat cushion 12, that is, the car seat can be truly flat after being switched into bed.

[0068] In actual use, the seat cushion group 1 of the embodiment includes a seat cushion framework 10, a main seat cushion 11 and an extension seat cushion 12, the extension seat cushion 12 is arranged rotatably at the rear end of the main seat cushion 11, in a normal riding mode of the car seat, the extension seat cushion at the rear end of the main seat cushion 11 is retracted below the backrest, and the rear end of the main seat cushion 11. When the car seat is switched into bed, the third drive module 22 drives the backrest body 21 to lie down backward, the first drive module 13 drives the rear end of the main seat cushion 11 to be lifted, so that the rear end of the main seat cushion 11 is consistent with the front end, and the second drive module 14 drives the extension seat cushion 12 to rotate upward, the extension seat cushion 12 fills the gap 150 between the main seat cushion 11 and the backrest body 21, connects the main seat cushion 11 and the backrest body 21, and ensures that there is no gap or step after the car seat is switched into bed, thereby improving the comfort of the passenger, and there is no need to additionally set a leveling component, and the problem of the gap or step between the backrest and the seat cushion after the traditional seat is switched into bed is effectively solved.

[0069] The automobile seat of the embodiment forms a continuous and flat sleeping plane after final bed formation, and the comfort is improved. The automobile seat can form a bed by itself without cooperation with other front or rear seats, and the overall structure is simple and the bed formation operation is simple.

[0070] As shown in Figures 1-5 In the embodiment, the first driving module 13 is configured as a first screw motor, and the first screw motor has a first telescopic end 130. Understandably, a screw sleeve is arranged on the output screw of the first screw motor, the output screw rotates to drive the screw sleeve to move along the output screw, and the first telescopic end 130 is arranged on the screw sleeve. The driving is realized through a screw nut mechanism, the transmission precision is high, the self-locking property is good, and the movement is stable.

[0071] The rear end of the main seat cushion 11 is provided with a first connecting support 110 rotatably connected with the first driving module 13, and the first connecting support 110 is hinged with the first telescopic end 130. In actual use, when the first telescopic end 130 is stretched, the rear end of the main seat cushion 11 is driven to lift; when the first telescopic end 130 is retracted, the rear end of the main seat cushion 11 is driven to descend. That is, when the first screw motor drives the screw sleeve on the output screw to move away from itself, the rear end of the main seat cushion 11 is lifted; when the first screw motor drives the screw sleeve on the output screw to move close to itself, the rear end of the main seat cushion 11 is lowered.

[0072] The second driving module 14 is configured as a second screw motor, and the second screw motor has a second telescopic end 140. Understandably, a screw sleeve is arranged on the output screw of the second screw motor, the output screw rotates to drive the screw sleeve to move along the output screw, and the second telescopic end 140 is arranged on the screw sleeve. Similarly, the driving is realized through a screw nut mechanism, the transmission precision is high, the self-locking property is good, and the movement is stable.

[0073] The second connecting support 120 is arranged on the extension seat cushion 12 and rotatably connected with the extension seat cushion 12, and the second connecting support 120 is hinged with the second telescopic end 140. In actual use, when the second telescopic end 140 is stretched, the extension seat cushion 12 is driven to rotate upward relative to the main seat cushion 11; when the second telescopic end 140 is retracted, the extension seat cushion 12 is driven to rotate downward relative to the main seat cushion 11. That is, when the second screw motor drives the screw sleeve on the output screw to move away from itself, the extension seat cushion 12 is driven to rotate from bottom to top; when the second screw motor drives the screw sleeve on the output screw to move close to itself, the extension seat cushion 12 is driven to rotate from top to bottom.

[0074] Further, the rear end of the main seat cushion 11 is provided with a connecting rod 111, the extended seat cushion 12 comprises a first U-shaped support 121 and a second U-shaped support 122, both ends of the first U-shaped support 121 are rotatably connected with both ends of the connecting rod 111 respectively; the second U-shaped support 122 is arranged on the inner side of the first U-shaped support 121, and both ends of the second U-shaped support 122 are fixedly connected with both ends of the first U-shaped support 121 respectively. The second connecting support 120 is arranged at the middle part of the second U-shaped support 122. In comparison, since the second U-shaped support 122 is close to the second connecting support 120, and the first U-shaped support 121 is far away from the second connecting support 120, the middle part of the second connecting support 120 and the second U-shaped support 122 are rotatably connected, so as to avoid that the span of the second connecting support 120 is too large, and the supporting strength and rigidity of the second connecting support 120 are affected.

[0075] The main seat cushion 11 is provided with multiple sitting areas side by side, and the multiple sitting areas can be used by multiple passengers. Preferably, in the embodiment, the main seat cushion 11 is provided with three sitting areas side by side, and the three sitting areas can generally be used by three passengers. When the automobile seat is in the bed state, the width of the bed can be ensured to be sufficient, so as to ensure that the passengers have sufficient space for rest and activity, and the comfort of the passengers is improved.

[0076] The seat cushion framework 10 is provided with a first driving module 13 close to one end of the connecting rod 111, and is provided with another first driving module 13 close to the other end of the connecting rod 111. The first connecting support 110 is rotatably connected with the connecting rod 111, and is provided with a first connecting support 110 close to each end of the connecting rod 111. The first extension end 130 of the two first driving modules 13 is rotatably connected with the two first connecting supports 110 respectively. That is, in the embodiment, the rear end of the main seat cushion 11 is lifted by synchronous driving of the two first lead screws, and the two second lead screws are arranged close to the left and right sides of the main seat cushion 11 respectively, so as to ensure that sufficient lifting force can be provided, and the supporting strength of the main seat cushion 11 after being lifted can be ensured.

[0077] In actual use, the extended seat cushion 12 in the embodiment comprises the first U-shaped support 121 and the second U-shaped support 122 which are fixedly connected with each other, so as to effectively ensure that the extended seat cushion 12 has sufficient rigidity and strength. The automobile seat can be used without the extended seat cushion 12 in the sitting state, or can be used with the extended seat cushion 12. When the extended seat cushion 12 is used in the sitting state, the extended seat cushion 12 can lengthen the main seat cushion 11, and increase the seatable space of the passengers.

[0078] In the riding posture, the main seat cushion 11 must be used, so the strength requirement of the main seat cushion 11 is higher, and the strength requirement of the extension seat cushion 12 is relatively low. The rear end of the main seat cushion 11 is lifted, and the left and right sides of the main seat cushion 11 are synchronously driven by two first screw rod motors, and the extension seat cushion 12 is driven by a second screw rod motor.

[0079] Preferably, in the embodiment, the front end of the main seat cushion 11 is provided with a leg support group 3, the leg support group 3 includes a leg support 30, a connecting rod 111 mechanism 31 and a third screw rod motor 32; the third screw rod motor 32 is arranged at the front end of the main seat cushion 11 and connected with the connecting rod 111 mechanism 31; the leg support 30 is installed at the front end of the main seat cushion 11 through the connecting rod 111 mechanism 31.

[0080] In use, the third screw rod motor 32 can drive the leg support 30 to unfold forward through the connecting rod 111 mechanism 31, so that the leg support 30 is flush with the front end of the main seat cushion 11. After the car seat is formed into a bed, the leg support 30 unfolded forward is flush with the front end of the main seat cushion 11, which can effectively lengthen the length of the bed and provide more space for passengers to rest and move. The bed is formed by the leg support 30, the main seat cushion 11, the extension seat cushion 12 and the backrest body 21 in sequence from front to back, forming a bed through from front to back, and fully utilizing the space in the car.

[0081] When the car seat is in the normal riding posture, the third screw rod motor 32 can drive the connecting rod 111 mechanism 31 to make the leg support 30 unfold forward to the desired angle, so as to support the passenger's shins and avoid the shins being suspended, which can improve the comfort of the passenger when riding. The leg support 30 can also be driven backward by the connecting rod 111 mechanism 31 to be folded on the main seat cushion 11, so as to ensure that the leg support group 3 does not occupy extra space in the car.

[0082] Need to be explained, the connecting rod mechanism 31 in the leg support group 3 of the embodiment is prior art, the leg support group 3 can be set as a six-way leg support or a four-way leg support, and the connecting rod mechanism 31 can adopt a six-connecting-rod mechanism, etc. Since it belongs to prior art, it will not be described again. For example, it can adopt the six-connecting-rod mechanism in CN221698553U, the leg support transmission mechanism in CN120439907A, and the leg support mechanism connecting rod assembly in CN222629175U, etc.

[0083] In actual use, the front end of the main seat cushion 11 of the embodiment is also provided with a leg support group 3, the third screw rod motor 32 in the leg support group 3 can drive the leg support 30 to unfold forward through the connecting rod 111 mechanism 31, so that the leg support 30 is flush with the front end of the main seat cushion 11. After the car seat is formed into a bed, the length of the bed can be lengthened, and then more space for passengers to rest and move can be provided.

[0084] like Figures 6-9 As shown, in this embodiment, the third drive module 22 includes a first motor 220, a first synchronizing rod 221, and a first angle adjuster 222. The backrest assembly 2 includes two spaced-apart supports 20, which are symmetrically arranged, and the distance between the two supports 20 is greater than the width of the seat cushion assembly 1. A first angle adjuster 222 is provided on each side of the backrest body 21 between it and the two supports 20. The two ends of the first synchronizing rod 221 are respectively connected to the two first angle adjusters 222. The first motor 220 drives the first angle adjusters 222 through the first synchronizing rod 221, causing the backrest body 21 to rotate relative to the two supports 20.

[0085] Specifically, the first motor 220 drives the first synchronizing rod 221 to rotate, and the first synchronizing rod 221 synchronously drives the first angle adjusters 222 at both ends of the first synchronizing rod 221, so that the backrest body 21 rotates relative to the two supports 20, thereby realizing the tilt angle adjustment of the backrest body 21. The setting of the first synchronizing rod 221 ensures that the first angle adjusters 222 on the left and right sides of the backrest body 21 operate synchronously, preventing the backrest body 21 from tilting or getting stuck during rotation.

[0086] With the car seat in a normal sitting position, the first motor 220 drives the first synchronizer 221, which in turn drives the two first angle adjusters 222 to adjust the tilt angle of the backrest body 21. This allows the passenger to be in various postures, such as a zero-gravity posture, which evenly distributes the pressure on the passenger's body, achieving optimal relaxation and recovery effects and ensuring high passenger comfort. When the car seat is assembled into a bed, the first motor 220 drives the first synchronizer 221, which in turn drives the two first angle adjusters 222 to tilt the backrest body 21 backward, ensuring that the backrest body 21 remains in a horizontal position.

[0087] As a preferred method:

[0088] In the embodiment, the backrest body 21 comprises an upper backrest 210, a transfer bracket 211, a second motor 212, a second synchronous rod 213 and a second angle adjuster 214. The second motor 212 is arranged on the upper backrest 210, each of the two supports 20 is provided with a transfer bracket 211, and the two transfer brackets 211 are rotatably arranged on the two supports 20 respectively. The first angle adjuster 222 is arranged between the support 20 and the transfer bracket 211, each of the two transfer brackets 211 is provided with a second angle adjuster 214 between the upper backrest 210, and the two ends of the second synchronous rod 213 are connected with the two second angle adjusters 214 respectively. In actual use, the second motor 212 drives the second angle adjuster 214 through the second synchronous rod 213, so that the upper backrest 210 rotates relative to the transfer bracket 211.

[0089] Specifically, the second motor 212 drives the second synchronous rod 213 to rotate, the second synchronous rod 213 drives the second angle adjusters 214 at both ends to rotate, so that the upper backrest 210 rotates relative to the two transfer brackets 211, and the inclination angle adjustment of the upper backrest 210 is realized. As an optional embodiment, when the automobile seat is converted into a bed, the rear end of the main seat cushion 11 can be connected with the upper backrest 210 by extending the seat cushion 12, so that the use range of the automobile seat is wider, and the optional mode is richer.

[0090] That is, in the preferred embodiment, the backrest body 21 is divided into the upper backrest 210 and the transfer bracket 211, two-stage rotation (the backrest body 21 rotates relative to the support 20 and the upper backrest 210 rotates relative to the transfer bracket 211) is realized through two sets of angle adjusters, and more rich posture adjustment possibilities are provided.

[0091] In the embodiment, the principle of converting the automobile seat from a conventional riding posture into a bed is as follows:

[0092] The second electric slide rail 5 drives the backrest group 2 to move backward, and / or the first electric slide rail 4 drives the seat cushion group 1 to move forward, so that the backrest group 2 and the seat cushion group 1 have a certain distance, to provide space for the extension of the extended seat cushion 12;

[0093] The rotation of the first screw rod of the first screw motor makes the first extension end 130 extend, drives the first connecting bracket 110 to rotate, makes the rear end of the main seat cushion 11 lift, the rear end of the main seat cushion 11 keeps flat with the front end of the main seat cushion 11, and both are in a horizontal state, and the lifting of the rear end of the main seat cushion 11 is completed.

[0094] The first motor 220 drives the first synchronous rod 221 to rotate, and the first synchronous rod 221 drives the two first angle adjusters 222 at the two ends to rotate, so that the backrest body 21 rotates from front to back, that is, the backrest body 21 lies down backward, until the backrest body 21 is in a horizontal state;

[0095] The screw rod of the second screw rod motor rotates, so that the second telescopic end 140 extends, drives the second connecting support 120 to rotate, and makes the extension seat cushion 12 rotate from bottom to top, and the extension seat cushion 12 is in a horizontal state, that is, a bed state, and the extension seat cushion 12, the main seat cushion 11 and the backrest body 21 are all in a horizontal state, so that the pure flatness is achieved;

[0096] In addition, the third screw rod motor 32 drives the connecting rod 111 mechanism 31, and the connecting rod 111 mechanism 31 drives the leg support 30 to extend forward from the front end of the main seat cushion 11, and the leg support 30 is in a horizontal state with the front end of the main seat cushion 11, so that the pure flatness of the automobile seat is further achieved, and the bed state is completed.

[0097] The principle of the automobile seat in the embodiment from the bed state to the conventional sitting state is as follows:

[0098] The first motor 220 drives the first synchronous rod 221 to rotate reversely (that is, reversely to the rotating direction in the bed state), and the first synchronous rod 221 drives the two first angle adjusters 222 at the two ends to rotate reversely (that is, reversely to the rotating direction in the bed state), so that the backrest body 21 rotates from back to front relative to the two supports 20, that is, the backrest body 21 recovers from the lying down state to the upright state;

[0099] The screw rod of the first screw rod motor rotates reversely (that is, reversely to the rotating direction in the bed state), so that the first telescopic end 130 retracts, drives the first connecting support 110 to rotate reversely (that is, reversely to the rotating direction in the bed state), and makes the rear end of the main seat cushion 11 descend, that is, the rear end of the main seat cushion 11 descends relative to the front end, so that the main seat cushion 11 recovers to the conventional sitting state, and a front end high and rear end low effect is formed;

[0100] The screw rod of the second screw rod motor rotates reversely (that is, reversely to the rotating direction in the bed state), so that the second telescopic end 140 retracts, drives the second connecting support 120 to rotate reversely (that is, reversely to the rotating direction in the bed state), and makes the extension seat cushion 12 rotate from top to bottom, and the extension seat cushion 12 is folded downward;

[0101] In addition, the third screw rod motor 32 drives the connecting rod 111 mechanism 31, and the connecting rod 111 mechanism 31 drives the leg support 30 to fold from front to back to below the front end of the main seat cushion 11, so that the seat cushion group 1 and the leg support group 3 are reset, and there is a gap between the backrest group 2 and the seat cushion group 1;

[0102] The second electric slide rail 5 drives the backrest group 2 to move forward, and / or the first electric slide rail 4 drives the seat cushion group 1 to move backward, so that the backrest group 2 is engaged with the seat cushion group 1, and the automobile seat returns to the normal riding posture.

[0103] In the scheme, the automobile seat can be a bed by itself. After the automobile seat is quickly converted into a bed, a large bed is provided for the passenger to lie down and rest, which can meet the needs of long-distance travel, temporary rest and the like. Moreover, the overall structure of the automobile seat capable of being converted into a bed is simple, the operation of conversion into a bed is convenient, and the comfort after conversion into a bed is good.

Claims

1. A bed-formable car seat, characterized by, The application relates to an automobile seat which can be switched into a bed, and belongs to the field of automobile seats. The seat cushion group and the backrest group are arranged on a car body, and at least one of the two groups can slide on the car body; The seat cushion group comprises a seat cushion framework, a main seat cushion and an extended seat cushion, the seat cushion framework is provided with a first driving module, the main seat cushion is movably arranged on the seat cushion framework and connected with the first driving module, the first driving module can drive the main seat cushion to lift the rear end of the main seat cushion to the same height as the front end of the main seat cushion, the extended seat cushion is rotatably arranged on the rear end of the main seat cushion, the main seat cushion is provided with a second driving module, and the second driving module is connected with the extended seat cushion, and the second driving module can drive the extended seat cushion to rotate relative to the main seat cushion; The backrest group comprises a support and a backrest body, the backrest body is rotatably arranged on the support, and the backrest group is provided with a third driving module, the third driving module is connected with the backrest body and can drive the backrest body to rotate; When the automobile seat is switched into a bed, the backrest group is located at the rear end of the seat cushion group and has a gap with the main seat cushion, the third driving module drives the backrest body to lie backward, the first driving module drives the rear end of the main seat cushion to lift, and the second driving module drives the extended seat cushion to rotate, so that the extended seat cushion fills the gap and connects the main seat cushion and the backrest body.

2. The convertible car seat of claim 1, wherein, The first driving module is a first screw rod motor, and the first screw rod motor has a first telescopic end; The rear end of the main seat cushion is provided with a first connecting bracket which is rotatably connected with the rear end, and the first connecting bracket is hinged with the first telescopic end; When the first telescopic end extends, the rear end of the main seat cushion is driven to lift, and when the first telescopic end retracts, the rear end of the main seat cushion is driven to descend.

3. The bed-formable car seat according to claim 2, wherein The second driving module is a second screw rod motor, and the second screw rod motor has a second telescopic end; The extended seat cushion is provided with a second connecting bracket which is rotatably connected with the extended seat cushion, and the second connecting bracket is hinged with the second telescopic end; When the second telescopic end extends, the extended seat cushion is driven to rotate upward relative to the main seat cushion, and when the second telescopic end retracts, the extended seat cushion is driven to rotate downward relative to the main seat cushion.

4. The convertible car seat of claim 3, wherein, The rear end of the main seat cushion is provided with a connecting rod; The extended seat cushion comprises a first U-shaped bracket and a second U-shaped bracket, the two ends of the first U-shaped bracket are rotatably connected with the two ends of the connecting rod respectively, the second U-shaped bracket is arranged on the inner side of the first U-shaped bracket, and the two ends of the second U-shaped bracket are fixedly connected with the two ends of the first U-shaped bracket respectively; The second connecting bracket is connected with the middle part of the second U-shaped bracket.

5. The convertible car seat of claim 4, wherein, The main seat cushion is provided with multiple sitting areas which are arranged side by side, and the multiple sitting areas can be used by multiple passengers; One end of the seat cushion framework close to the connecting rod is provided with one first driving module, and the other end close to the connecting rod is provided with another first driving module. The first connecting support is rotatably connected with the connecting rod, and one first connecting support is arranged near each end of the connecting rod.

6. The convertible car seat of claim 1, wherein, After the bed is formed, the rear end of the main seat cushion is level with the front end of the main seat cushion, and both are in a horizontal state; the extension seat cushion is arranged horizontally at the rear end of the main seat cushion.

7. The convertible car seat of claim 1, wherein, The front end of the main seat cushion is provided with a leg support group, which includes a leg support, a connecting rod mechanism and a third screw motor; the third screw motor is arranged at the front end of the main seat cushion and connected with the connecting rod mechanism; the leg support is installed at the front end of the main seat cushion through the connecting rod mechanism. The third screw motor can drive the leg support to unfold forward through the connecting rod mechanism, so that the leg support is level with the front end of the main seat cushion; and the third screw motor can drive the leg support to fold backward through the connecting rod mechanism, so that the leg support is folded to the main seat cushion.

8. The convertible car seat of claim 1, wherein, The third drive module includes a first motor, a first synchronous rod and a first angle adjuster; The backrest group includes two supports arranged at intervals, and a first angle adjuster is arranged between each side of the backrest body and each support; the two ends of the first synchronous rod are connected with the two first angle adjusters respectively; The first motor drives the first angle adjuster through the first synchronous rod, so that the backrest body rotates relative to the two supports.

9. The convertible car seat of claim 8, wherein, The backrest body includes an upper backrest, a middle transfer support, a second motor, a second synchronous rod and a second angle adjuster; Each middle transfer support is arranged between the support and the middle transfer support; Each second angle adjuster is arranged between the middle transfer support and the upper backrest; the two ends of the second synchronous rod are connected with the two second angle adjusters respectively; The second motor drives the second angle adjuster through the second synchronous rod, so that the upper backrest rotates relative to the middle transfer support.

10. The convertible car seat of claim 1, wherein, The first electric slide rail and the second electric slide rail are arranged on the automobile body respectively, the seat cushion group is arranged on the first electric slide rail, the backrest group is arranged on the second electric slide rail, and the first electric slide rail and the second electric slide rail can respectively drive the seat cushion group and the backrest group to slide forward and backward.

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