Seat assembly of a vehicle

Abstract

The present application discloses a seat assembly for a vehicle, which may include: a support portion having a lower end portion connected to the vehicle floor; a seat frame having a connecting portion disposed above the support portion and having an overall slope, and when the connecting portion slides, the overall slope is changed by the curvature of the connecting portion, and the connecting portion is formed as a curve or a curved surface; and a seat mounted on the seat frame and configured to be tilted by the slope of the seat assembly, and when the seat frame slides on the support portion, the slope changes together with the seat frame.

Description

Technical Field

[0001] The present invention relates to a seat assembly for a vehicle, which can move inside and outside the vehicle, and the seat is tilted by the slope of the seat assembly. When the seat frame slides on the support portion, the slope changes with the seat frame. Background Art

[0002] Seats are provided in vehicles for a driver to sit and drive or for another passenger to sit and rest. Traditional vehicle seats have such limitations: the seats can move back and forth inside the vehicle, but the moving range is very limited, and the backrest can be tilted, but the driver or passenger cannot significantly change their posture from the basic sitting position.

[0003] As autonomous vehicles will be commercially available in the future, there will be no need for a driver. Therefore, when the vehicle is moving, passengers on the vehicle will perform various activities, such as resting or working in a more comfortable position. However, for passengers sitting on traditional vehicle seats, there are many inconveniences when performing these activities.

[0004] Therefore, there is a need for a vehicle seat that allows for more freedom of movement inside the vehicle and allows passengers sitting on the seat to adopt a more comfortable posture and perform various activities.

[0005] The information included in this background art section is only for enhancing the understanding of the general background of the present invention and should not be construed as an admission or any form of suggestion that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0006] Various aspects of the present invention relate to providing a seat assembly for a vehicle, which can move inside and outside the vehicle, and allows passengers to adopt a more comfortable posture on the seat through the slope of the seat assembly. The slope changes smoothly as the entire cocoon-shaped seat frame slides, and the convenience of passengers can be promoted by the provided display and main board.

[0007] According to various exemplary embodiments of the present invention, a seat assembly for a vehicle includes: a support portion having a lower end portion connected to the vehicle floor; a seat frame having a connecting portion disposed above the support portion and having an overall slope, and when the connecting portion slides, the overall slope is changed by the curvature of the connecting portion, and the connecting portion is formed as a curve or a surface; and a seat mounted on the seat frame and configured to be tilted by the slope of the seat assembly, and when the seat frame slides on the support portion, the slope changes together with the seat frame.

[0008] The seat frame may have a hemispherical or cocoon-shaped structure. The connecting portion may be formed as a curve or a curved surface along the outer surface of the seat frame, and the connecting portion and the seat frame slide integrally, whereby the overall inclination of the seat frame can be changed.

[0009] The seat frame may have such a shape that the front portion of the seat frame is open and an internal space is formed in the seat frame, and the seat is installed in the internal space of the seat frame. Thus, when a passenger sits on the seat, the seat frame can wrap around the back and sides of the passenger.

[0010] The connecting portion may be formed to face multiple directions, and when the seat frame slides in multiple directions, the inclination of the seat frame can be changed in multiple directions.

[0011] The connecting portion may be a guide rail formed on the seat frame, and the guide rail is formed as a curve or a curved surface and slides on the support portion, whereby the inclination of the seat frame can be changed.

[0012] The fixing portion may be provided in the support portion or the connecting portion, and when the fixing portion selectively fixes the support portion and the connecting portion, the inclination of the seat frame can be selectively fixed according to the operation of the fixing portion.

[0013] The lower end portion of the support portion may move along a guide groove on the floor, the guide groove is provided on the floor of the vehicle, and the guide groove may be formed to wrap around the lower end portion of the support portion to prevent the support portion from separating upward.

[0014] One end portion of the guide groove may extend toward the opening portion of the vehicle and may be connected to the outside of the vehicle, where the door of the vehicle is provided in the opening portion, and the seat frame can enter and leave the vehicle through one end portion of the guide groove.

[0015] When the floor is inclined, the seat frame slides in the opposite direction due to the inclination of the floor, whereby the seat provided in the seat frame can remain horizontal relative to the ground.

[0016] A display may be provided on the seat frame, and the display can be selectively displayed with an inclination, and the inclination is changed according to the height of the passenger's eyes.

[0017] The seat frame may be provided with a left table board and a right table board, and when the two table boards are coupled, the left table board and the right table board can selectively contact to form a single table board.

[0018] The left table board and the right table board may be provided with magnets. When the magnet of one table board protrudes and attaches to the magnet in the slot, the two table boards are coupled, where the slot is formed in the other table board, and when the magnet is separated by a spring provided behind the protruding magnet, the two table boards can be separated.

[0019] The method and apparatus of the present invention have other features and advantages, which will be elaborated in detail in the accompanying drawings incorporated herein and the following detailed description and will become apparent, wherein the drawings and the detailed description together are used to explain the basic principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a side view of a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0021] Figure 2A and Figure 2B is an enlarged view of a connecting portion of a support part and a seat frame of a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0022] Figure 3 is a view exemplarily showing a seat assembly of a vehicle moving along a guide groove in the vehicle according to various exemplary embodiments of the present invention.

[0023] Figure 4 is a view exemplarily showing a state in which a display and a table board are exposed in a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0024] Figure 5 is a view exemplarily showing a structure of a display of a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0025] Figure 6 is a view exemplarily showing a state in which side table boards of a seat assembly of a vehicle according to various exemplary embodiments of the present invention are coupled.

[0026] It should be understood that the drawings are not necessarily to scale and present simplified illustrations of various features of the basic principles of the present invention to some extent. Specific design features of the present disclosure disclosed herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined by the specific intended application and the usage environment.

[0027] In the drawings, reference numerals refer to the same or equivalent parts in the present invention throughout the several views. DETAILED DESCRIPTION

[0028] Reference will now be made in detail to various embodiments of the present invention, which are illustrated in the accompanying drawings and described below. Although the present invention will be described in conjunction with the exemplary embodiments of the present invention, it should be understood that this description is not intended to limit the present invention to those exemplary embodiments. On the other hand, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various alternatives, modifications, equivalents, and other embodiments, which may be included within the spirit and scope of the present invention as defined by the appended claims.

[0029] Figure 1 is a side view of a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0030] Figure 2A and Figure 2B is an enlarged view of a connection portion between a support portion and a seat frame of a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0031] Figure 3 is a view exemplarily showing a seat assembly of a vehicle moving along a guide groove in the vehicle according to various exemplary embodiments of the present invention.

[0032] Figure 4 is a view exemplarily showing a state in which a display and a table board are exposed in a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0033] Figure 5 is a view exemplarily showing a structure of a display of a seat assembly of a vehicle according to various exemplary embodiments of the present invention.

[0034] Figure 6 is a view exemplarily showing a state in which both side table boards of a seat assembly of a vehicle according to various exemplary embodiments of the present invention are coupled.

[0035] Figure 1 is a side view of a seat assembly of a vehicle according to various exemplary embodiments of the present invention. The seat assembly of a vehicle according to various exemplary embodiments of the present invention includes: a support portion 100 having a lower end portion connected to a floor of the vehicle; a seat frame 110 having a connection portion disposed above the support portion 100 and having an overall slope that is changed by a curvature of the connection portion when the connection portion slides, the connection portion being formed as a curve or a surface; and a seat 120 configured to be tilted by the slope thereof, the slope being changed together with the seat frame 110 when the seat frame 110 slides.

[0036] Conventional seats are only configured for limited movement in the forward and backward directions, and even when tilted, the change in the backrest angle is limited. Therefore, it is difficult for passengers to use the space in the vehicle and they are uncomfortable due to restricted postures. The seat assembly of a vehicle according to various exemplary embodiments of the present invention has a different structure from conventional seats, and as a seat assembly of a vehicle, it can move inside and outside the vehicle, and the connection portion between the support portion 100 and the seat frame 110 is formed as a curve or a surface so that tilting is achieved when the entire seat frame 110 slides.

[0037] The seat frame 110 is positioned on the upper end portion of the support part 100, and a connecting part connecting to the support part 100 is formed in a curve or a curved surface on the outer surface of the seat frame 110. The connecting part slides in a specific direction based on the support part 100. Accordingly, the entire seat frame 110 moves and its inclination changes, and thus the inclination of the seat 120 provided inside the seat frame 110 also changes.

[0038] In other words, unlike a conventional seat which realizes reclining by changing the backrest angle, the seat assembly of a vehicle according to various exemplary embodiments of the present invention realizes reclining by moving the entire seat frame 110. Accordingly, a passenger will be able to use the vehicle more comfortably by taking a posture of lying on the seat.

[0039] In addition, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, a frame support member for supporting the seat frame 110 may be provided at the upper end portion of the support part 100. The frame support member is formed in the support part 100 and extends widely along the surface of the seat frame 110 to support the seat frame 110 more stably and more widely, and when the connecting part provided on the seat frame 110 slides along one side of the frame support member, the inclination of the seat frame 110 may be changed. At the upper end portion of the support part 100, a protruding part is formed on one side of the frame support member, and when supporting the seat frame 110, the protruding part may slide by engaging with the connecting part formed on the seat frame 110. Accordingly, the connecting part of the seat frame 110 is supported by the frame support member and at the same time, slides based on the protruding part of the frame support member, and the inclination of the seat frame may be changed.

[0040] Meanwhile, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, the seat frame 110 has a hemispherical or cocoon-type structure, the connecting part is formed in a curve or a curved surface along the outer surface of the seat frame 110, and the connecting part and the seat frame slide integrally, whereby the overall inclination of the seat frame may be changed. When the seat frame 110 has a hemispherical or cocoon-type structure, the connecting part having a curve or a curved surface shape can be formed on the outer surface of the seat frame 110 with the same curvature as the seat frame 110. Accordingly, when a passenger adjusts the inclination, the entire hemispherical or cocoon-type seat frame moves integrally, whereby the inclination of the seat frame is changed more smoothly.

[0041] In addition, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, the seat frame 110 has a shape in which the front part is open and an internal space is formed in the seat frame, and the seat 120 is disposed in the internal space of the seat frame 110. Thus, when a passenger sits on the seat 120, the seat frame 110 can wrap around the back and sides of the passenger. Unlike a conventional seat including a seating part and a backrest part, the seat assembly of a vehicle according to various exemplary embodiments of the present invention allows a passenger to use the vehicle in a more independent space than a conventional seat by mounting the seat 120 in the internal space of the seat frame 110. In addition, when the vehicle is docked with the outside, the seat assembly leaves the vehicle while the passenger is seated on the seat, and can externally protect the passenger seated on the seat from the side and the back.

[0042] Meanwhile, a seat backrest support is disposed inside the seat frame 110 such that the seat 120 can be disposed, and the seat 120 is disposed on the seat backrest support. The seat 120 may include: a seating part disposed at a lower end part of the seat backrest support; a lumbar support disposed at an upper end part of the seating part; a backrest part disposed at an upper end part of the lumbar support; and a headrest part disposed at an upper end part of the backrest part. Thus, since the seat 120 supports the passenger's body in all directions, the passenger can take a more comfortable posture.

[0043] In addition, in a state where the seat frame 110 is fixed, even if the seat frame 110 does not slide, the seat 120 can independently slide inside the seat frame 110, whereby the inclination of the seat 120 itself can be changed. By separately adjusting the inclinations of the seat frame 110 and the seat 120, a more precise inclination can be achieved, and the passenger can generate a more comfortable seat space for himself or herself by using the achieved inclination.

[0044] Meanwhile, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, when the floor is inclined, the seat frame 110 slides in the opposite direction by the inclination of the floor, whereby the seat 120 disposed in the seat frame 110 can be kept horizontal with respect to the ground. By mounting a gyro sensor and a controller on the support part 100 and the seat frame 110, when the vehicle shakes or passes over a speed bump, even if the vehicle is inclined, the inclination can be reflected in real time, such that the connecting part of the seat frame 110 slides in the opposite direction of the inclination. Therefore, even when the vehicle is inclined, the seat frame 110 always remains horizontal, and the passenger seated on the seat can use the vehicle comfortably and smoothly.

[0045] Figure 2A and Figure 2BIt is an enlarged view of the connection part between the support part of the seat assembly of a vehicle and the seat frame according to various exemplary embodiments of the present invention. In the seat assembly of a vehicle according to various exemplary embodiments of the present invention, the connection part 200 is formed to face multiple directions, and as the seat frame slides in multiple directions, the inclination of the seat frame can be changed in multiple directions. For example, when the connection part 200 is formed on the outer surface of the seat frame 110 in three directions, the seat frame 110 can move forward, backward, and laterally. Therefore, the passenger can freely tilt the seat frame 110 in the desired direction, so as to use the seat in various postures.

[0046] In addition, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, the connection part 200 is a guide rail formed on the seat frame, and the guide rail is formed in a curve or a curved surface and slides on the support part, so that the inclination of the seat frame 110 can be changed. Therefore, the seat frame 110 slides along the guide rail (i.e., the connection part 200), and the guide rail can not only be a sliding path, but also be constructed to prevent the seat frame 110 from separating from the support part 100.

[0047] Meanwhile, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, the fixing part 210 is provided in the support part 100 or the connection part 200, and when the fixing part 210 selectively fixes the support part 100 and the connection part 200, the inclination of the seat frame 110 can be selectively fixed according to the operation of the fixing part 210. After the passenger adjusts the inclination of the seat frame 110 or the seat 120 in the desired direction, it is necessary to fix the seat frame 110 or the seat 120 so that it no longer moves. For example, a plurality of holes are formed along the connection part 200 and a hole is also formed in the support part 100. The fixing part 210 is provided in the support part 100 or the connection part 200, and the fixing part 210 provided on one side is inserted into the other side, thereby realizing a locking mechanism.

[0048] Therefore, when the fixing part 210 provided in the support part 100 or the connection part 200 is inserted and penetrates the holes of the connection part 200 and the support part 100, the seat frame 110 can be fixed so that it no longer moves. The fixing part 210 not only inserts and penetrates the connection part 200 and the support part 100, but also penetrates the seat back support, thereby fixing the seat frame 110, and the fixing part is constructed to fix the seat 120 even when the seat 120 slides by itself.

[0049] When the seat frame 110 or the seat 120 slides again, pull out the fixing part 210 from the hole, slide the seat frame 110 or the seat 120 to adjust the inclination of the seat frame 110 or the seat 120, and then insert the fixing part 210 again, so that the seat frame 110 or the seat 120 is fixed.

[0050] In an exemplary embodiment of the present invention, the connection portion 200 is formed to branch from a predetermined portion to form a plurality of branch connection portions 200. Figure 2A and Figure 2B As shown in , the fixing portion 210 is located on a predetermined portion of the connecting portion 200 .

[0051] Figure 3 1 is a view exemplarily showing that a seat assembly of a vehicle according to various exemplary embodiments of the present invention moves along a guide groove in a vehicle. In the seat assembly of a vehicle according to various exemplary embodiments of the present invention, a lower end portion of a support portion 100 may move on a floor along a guide groove 500 provided on a floor of the vehicle, and the guide groove 500 may be formed to wrap around a lower end portion of the support portion 100 to prevent the support portion 100 from being separated upward.

[0052] If the autonomous driving technology is developed in the future, the vehicle will be able to move without a driver. Therefore, when the vehicle moves, the passengers on the vehicle can rest or perform various activities. However, the conventional seats have limitations when moving the seats, and thus space limitations are formed accordingly. Therefore, in the seat assembly of the vehicle according to various exemplary embodiments of the present invention, when the guide groove 500 is formed on the floor of the vehicle, the support portion 100 is allowed to move along the guide groove 500.

[0053] A plate with wheels is formed at the lower end portion of the support portion 100 so that the support portion 100 moves in the guide groove 500, and the guide groove 500 has a structure with a wider inner width and has an upper end portion that covers the lower end portion of the support portion to prevent the support portion 100 from being separated from the floor. Therefore, the passenger can use the space of the vehicle by moving the seat of the vehicle as desired inside the vehicle.

[0054] Furthermore, one end portion of the guide groove 500 extends toward an opening portion in which a door of the vehicle is provided and is connected to the outside of the vehicle, and the seat frame 110 can enter and leave the vehicle through the one end portion of the guide groove 500. In other words, when the vehicle docks with the outside of the vehicle or when a passenger gets on or off the vehicle, the seat frame 110 can enter and leave the vehicle through the guide groove 500, whereby a passenger can get on and off the vehicle while sitting on the seat, or an unnecessary seat frame 110 can be taken out of the vehicle to secure space in the vehicle.

[0055] Figure 4 2 is a view exemplarily showing a state in which a display and a table are exposed in a seat assembly of a vehicle according to various exemplary embodiments of the present invention. Figure 5It is a view exemplarily showing the structure of a display of a seat assembly of a vehicle according to various exemplary embodiments of the present invention. Figure 6 It is a view exemplarily showing a state in which both side tables of a seat assembly of a vehicle according to various exemplary embodiments of the present invention are coupled. In the seat assembly of a vehicle according to various exemplary embodiments of the present invention, a display 300 may be provided on a seat frame 110, and the display 300 may be selectively shown to have an inclination that changes according to the height of a passenger's eyes.

[0056] When not in use, the display 300 may be accommodated in a side surface of the seat frame 110 and taken out from the seat frame 110 if needed. The display 300 is formed in a curved surface and specifically includes a display guide 310, a hinge 320, and a curved display screen 330. When taking out the display 300, the display guide 310 pushes the curved display screen 330 out, and the display guide 310 is located on a side surface of a passenger's head. The taken-out curved display screen 330 bends smoothly and is located in front of the passenger's head. In addition, the hinge 320 is located at a portion where the curved display screen 330 is connected to the display guide 310 so that the inclination of the curved display screen 330 can be adjusted. Therefore, a passenger can comfortably use the display by adjusting the inclination of the curved display screen 330 according to his or her own eye height.

[0057] Meanwhile, in the seat assembly of a vehicle according to various exemplary embodiments of the present invention, the seat frame 110 is provided with a left table 410 and a right table 420, and when the two tables are coupled, the left table 410 and the right table 420 can selectively contact to form a single table 400. When not in use, the left table 410 and the right table 420 can be accommodated in a side surface of the seat frame 110 and taken out from the seat frame 110 when in use to be positioned in front of a passenger. Therefore, a passenger can use a wider table by coupling the left table 410 and the right table 420.

[0058] In addition, the left table 410 and the right table 420 are provided with magnets 440 and 450. When the magnet 440 of one table protrudes and is attached to the magnet 450 in a groove formed in the other table, the two tables are coupled, and when the magnets 440 and 450 are separated by a spring 430 provided at the rear side of the protruding magnet, the two tables can be separated.

[0059] After removing the left table board 410 and the right table board 420 from the side surface of the seat frame 110, the passenger positions the left table board 410 and the right table board 420 in front of the passenger and couples the left table board 410 and the right table board 420 by using magnetic force, and uses the coupled table boards as a single table board 400. At this time, an N - pole magnet 440 is provided at an end portion of the left table board 410, an S - pole magnet 450 is provided at an end portion of the right table board 420, and a groove into which the N - pole magnet 440 can be inserted is provided at the end portion of the right table board 420. Therefore, when the left table board 410 meets the right table board 420, the N - pole magnet 440 of the left table board 410 protrudes by magnetic force and is inserted into the groove of the right table board 420, and the N - pole magnet 440 is located at the middle portion of the table board 400. Therefore, compared with when only magnetic force coupling is used, the table board 400 can bear a greater vertical load by using the N - pole magnet as a support.

[0060] Thereafter, when the table board 400 is not needed, the N - pole magnet 440 and the S - pole magnet 450 can be separated. In an exemplary embodiment of the present invention, the N - pole magnet 440 and the S - pole magnet 450 can be separated by using a spring 430 on the rear side of the N - pole magnet 440, and the left table board 410 and the right table board 420 can be separated.

[0061] The seat assembly of a vehicle according to various exemplary embodiments of the present invention can move inside and outside the vehicle, and a passenger can take a more comfortable posture on the seat through the inclination of the seat assembly, and the inclination smoothly changes as the entire cocoon - type seat frame slides, and the convenience of the passenger can be promoted by the provided display and main board.

[0062] In addition, the terms “controller”, “control unit” or “control device” refer to a hardware device including a memory or a processor configured to execute one or more steps interpreted as an algorithmic structure. The memory stores the algorithm steps, and the processor executes the algorithm steps to perform one or more processes of the method according to various exemplary embodiments of the present invention. The controller according to an exemplary embodiment of the present invention can be implemented by a non - volatile memory configured to store an algorithm for controlling the operation of various components of the vehicle or data on software commands for executing the algorithm, and a processor configured to perform the operations described above using the data stored in the memory. The memory and the processor can be separate chips. Alternatively, the memory and the processor can be integrated in a single chip. The processor can be implemented as one or more processors.

[0063] The controller or control unit can be at least one microprocessor operated by a predetermined program, and the predetermined program can include a series of commands for executing the method according to various exemplary embodiments of the present invention.

[0064] The foregoing invention may also be embodied as computer-readable code on a computer-readable recording medium. A computer-readable recording medium is any data storage device that can store data that can be subsequently read by a computer system. Examples of computer-readable recording media include hard disk drives (HDDs), solid state drives (SSDs), silicon disk drives (SDDs), read-only memories (ROMs), random access memories (RAMs), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, etc., and are implemented as carrier waves (e.g., transmitted via the Internet).

[0065] In an exemplary embodiment of the present invention, each of the above operations may be performed by a controller, and the controller may be configured by a plurality of controllers or a single integrated controller.

[0066] For convenience of explanation and for the accurate definition in the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper part", "lower part", "upward", "downward", "front", "rear", "rear part", "inner side", "outer side", "inward", "outward", "inside", "outside", "inner", "outer", "forward" and "backward" are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the drawings. It should also be understood that the term "connected" or its derivatives refer to both direct and indirect connections.

[0067] For purposes of illustration and description, the foregoing description of specific exemplary embodiments of the present invention has been presented. They are not intended to be exhaustive of the present invention or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described to explain certain principles of the present invention and its practical applications to enable others skilled in the art to make and utilize various exemplary embodiments of the present invention and its various alternatives and modifications. The scope of the present invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A seat assembly for a vehicle, the seat assembly comprising: A support portion having a lower end portion connected to the vehicle floor; A seat frame; A connecting portion disposed above the support portion, formed as a curve or a curved surface, and joining the support portion and the seat frame, wherein the connecting portion has an overall slope, and when the connecting portion slides, the overall slope of the connecting portion is changed by the curvature of the connecting portion; and A seat mounted on the seat frame and configured to achieve tilting of the seat by having a slope, and when the seat frame slides on the support portion, the slope of the seat changes together with the seat frame, Wherein the connecting portion is formed to face multiple directions, and wherein when the seat frame slides in the multiple directions, the overall slope of the seat frame changes in the multiple directions.

2. The seat assembly according to claim 1, wherein, The connecting portion is formed as a curve or a curved surface along the outer surface of the seat frame, and wherein the connecting portion and the seat frame slide integrally to change the overall slope of the seat frame.

3. The seat assembly according to claim 1 further includes a fixing portion, wherein, The connecting portion includes a plurality of holes while the support portion includes one hole, and wherein when the fixing portion is inserted into one of the plurality of holes in the connecting portion and the one hole in the support portion, the seat frame is configured to be locked.

4. The seat assembly according to claim 3, wherein, The fixing portion is disposed in the support portion or the connecting portion, and wherein when the fixing portion selectively fixes the support portion and the connecting portion through one of the plurality of holes, the overall slope of the seat frame is selectively fixed according to the operation of the fixing portion.

5. The seat assembly according to claim 1, wherein, The seat frame has a hemispherical structure or a cocoon-like structure.

6. The seat assembly according to claim 1, wherein, The front portion of the seat frame is open and an internal space is formed in the seat frame, and wherein the seat is mounted in the internal space of the seat frame, whereby when a passenger sits on the seat, the seat frame is configured to wrap around the back and sides of the passenger.

7. The seat assembly according to claim 1, wherein, The connecting portion is a guide rail formed on the seat frame, and wherein the guide rail is formed as a curve or a curved surface and slides on the support portion to change the overall slope of the seat frame.

8. The seat assembly according to claim 1, wherein, A fixing portion is disposed in the support portion or the connecting portion, and wherein when the fixing portion selectively fixes the support portion and the connecting portion, the overall slope of the seat frame is selectively fixed according to the operation of the fixing portion.

9. The seat assembly according to claim 8, wherein, The connecting portion is formed to branch from a predetermined portion to form a plurality of branch connecting portions, and wherein the fixing portion is located on the predetermined portion of the connecting portion.

10. The seat assembly according to claim 1, wherein, The lower end portion of the support portion can move on the floor along a guide groove provided on the vehicle floor, and wherein the guide groove can slidably engage with the lower end portion of the support portion to prevent the support portion from separating upward.

11. The seat assembly according to claim 10, wherein, One end portion of the guide groove extends toward an opening portion of the vehicle and is connected to the outside of the vehicle, a door of the vehicle is provided in the opening portion, and wherein, the seat frame can enter and leave the vehicle through the one end portion of the guide groove.

12. The seat assembly according to claim 1, wherein, When the floor is inclined, the seat frame slides in a direction opposite to the slope of the floor by the slope of the floor, so that the seat provided in the seat frame remains horizontal with respect to the ground.

13. The seat assembly according to claim 1, wherein, A display is provided on the seat frame, and wherein, the display is selectively shown to have a slope, and the slope of the display is changed according to the height of the passenger's eyes.

14. The seat assembly according to claim 1, wherein, The seat frame is provided with a first table board and a second table board, and wherein, when the first table board is coupled to the second table board, the first table board and the second table board selectively contact to form one table board.

15. The seat assembly according to claim 14, wherein, The first table board is provided with a first magnet and the second table board is provided with a second magnet, wherein, when the first magnet of the first table board protrudes and is attached to the second magnet in a groove formed in the second table board, the first table board is coupled to the second table board.

16. The seat assembly according to claim 15, wherein, When the first table board and the second table board are separated by a spring, the first table board and the second table board are separated, and the spring is provided at the rear side of the protruding magnet among the first magnet and the second magnet.

17. The seat assembly according to claim 1 further includes a display, the display being slidably disposed on the seat frame, wherein, The display includes a display guide, a hinge, and a curved display screen, wherein, when the display is taken out from the seat frame, the display guide pushes the curved display screen and comes out of the seat frame, and wherein, the hinge is provided at a portion where the curved display screen is connected to the display guide so as to adjust the slope of the curved display screen.

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