Structure to prevent sliding doors from shaking

Abstract

The present invention relates to a structure for preventing a sliding door from shaking, comprising: a track installed along a first direction, the first direction being the longitudinal direction of a vehicle body; a track roller unit, which is rollably connected to the track; a sliding module, which is configured to apply a driving force in the first direction to the track roller unit through a cable; a slider, which is installed on the track roller unit; a moving support unit, which is configured to support the sliding door, wherein a first side of the moving support unit is fixed to the sliding door, and a second side of the moving support unit is rollably connected to the slider; and a swivel assembly, which is configured to operate a swivel between the sliding door and the track to move the sliding door in a second direction perpendicular to the first direction.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of Korean Patent Application No. 10-2020-0133516 filed on October 15, 2020 in the Korean Intellectual Property Office, which is incorporated herein by reference. Technical Field

[0003] The invention relates to a structure for preventing a sliding door from shaking. Background Art

[0004] Generally, a vehicle has a passenger compartment having a predetermined size in which a driver or an accompanying passenger can sit, and a passenger compartment opening / closing door is installed at a vehicle body to open or close the passenger compartment.

[0005] The sliding passenger compartment opening / closing door includes a front sliding door and a rear sliding door, the front sliding door is installed at the front side along the longitudinal direction of the vehicle, and the rear sliding door is installed at the rear side along the longitudinal direction of the vehicle. The front sliding door and the rear sliding door are usually installed to move along a track installed on the vehicle body or the door.

[0006] However, the sliding passenger compartment opening / closing door in the related art requires three rails (upper rail, middle rail and lower rail) which respectively support the upper, middle and lower parts of the door during the process of opening or closing the door, and also requires rail-related components. For this reason, the sliding passenger compartment opening / closing door in the related art has the following problems: the weight of the vehicle increases and the number of components increases, and the degree of freedom of design of the vehicle deteriorates.

[0007] Therefore, a dual-track door system for a vehicle has been developed in which a sliding door is slidably supported only by a middle track and a lower track. For example, Korean Patent No. 10-1684536 and corresponding U.S. Publication No. 2016 / 356069 (a sliding door system for a vehicle) in the related art disclose that a door track (i.e., a middle track) is mounted on the sliding door, a body track (i.e., a lower track) is mounted on the vehicle body, and the sliding door is opened or closed as a center slider coupled to the door track and a lower slider coupled to the body track move.

[0008] However, reference Figure 1In the sliding structure of the related art, as supporting points for supporting the sliding door, two supporting points are formed along the vertical direction, including a contact point A between the vehicle body rail and the lower slider and a contact point B between the middle rail and the central slider. However, there is a problem that the sliding door rotates around an imaginary axis X connecting the contact points. In addition, the supporting points for the sliding door are formed only on the imaginary axis X, so when a load of the sliding door is applied, only one contact point A remains in the load direction (the direction of the imaginary axis X), so there is a problem in that the sliding door cannot be stably supported and the sliding door shakes when moving. Summary of the invention

[0009] The present invention relates to a structure for preventing a sliding door from shaking. A specific embodiment relates to a structure for preventing a sliding door from shaking, which can prevent the sliding door from shaking in a vehicle on which the sliding door is installed and which has only a lower track.

[0010] An embodiment of the present invention provides a novel structure capable of preventing the swing of a sliding door and supporting a load when the sliding door is opened or closed in a vehicle in which the sliding door is installed and has only a lower rail.

[0011] An exemplary embodiment of the present invention provides a structure for preventing a sliding door from shaking, the structure comprising: a track installed along the longitudinal direction of a vehicle body; a track roller unit rollably connected to the track; a sliding module configured to apply a driving force in a first direction to the track roller unit via a cable; a slider installed on the track roller unit along the longitudinal direction; a moving support unit fixed to the vehicle door on one side of the moving support unit, rollably connected to the slider on the other side of the moving support unit, and configured to support the vehicle door; and a swivel assembly configured to operate a swivel between the vehicle door and the track to move the vehicle door in a second direction.

[0012] According to the embodiments of the present invention, the following effects are achieved.

[0013] First, a rotation factor required for rotating the door in a vehicle equipped with a sliding door in the related art is eliminated, and thus, shaking of the door when the door is operated can be minimized.

[0014] Second, an upper member and a center member configured to move a door in a related art vehicle equipped with a sliding door are removed, and therefore, it is possible to improve the degree of freedom in designing the vehicle and to secure the entire interior space.

[0015] Third, when the door is operated, the moving support unit and the track roller unit can prevent the door from shaking while supporting the door.

[0016] Fourth, in order to prevent the door from shaking, when the door moves in any one of the first direction and the second direction, the movement of the door in the other direction is controlled and restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram showing a supporting point at which a sliding door for a vehicle having only a middle rail and a lower rail in the related art is supported.

[0018] Figure 2 1 is a schematic diagram illustrating a state in which a structure for preventing a sliding door from shaking according to an exemplary embodiment of the present invention is applied to a vehicle door.

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged portion E.

[0020] Figure 4 is a schematic diagram illustrating a state in which a sliding module according to an exemplary embodiment of the present invention is connected to a lower rail.

[0021] Figure 5 1 is a schematic diagram illustrating a state in which a slider is engaged with a track roller unit according to an exemplary embodiment of the present invention.

[0022] Figure 6 To show along Figure 5 Schematic diagram of a cross section obtained along line SS′ in FIG.

[0023] Figure 7 2 is a schematic diagram illustrating a state in which a rail roller unit is connected to a lower rail according to an exemplary embodiment of the present invention.

[0024] Figure 8 1 is a schematic diagram illustrating a state in which a swivel assembly and a moving support unit are connected to a vehicle door according to an exemplary embodiment of the present invention.

[0025] 9A to 9C 1 is a schematic diagram illustrating a state in which a structure for preventing a sliding door from shaking according to an exemplary embodiment of the present invention operates when the vehicle door moves from a closed state to an open state. DETAILED DESCRIPTION

[0026] Hereinafter, an exemplary embodiment of a structure for preventing a sliding door from shaking will be described in detail with reference to the accompanying drawings. The terms or words used herein should not be interpreted as limited to the usual meaning or dictionary meaning, and should be interpreted as meanings and concepts that conform to the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to describe his / her own invention in the best way.

[0027] According to an exemplary embodiment of the present invention, the vehicle has only a lower rail 100 (a rail provided at the lower side of the vehicle), and has neither a middle rail 20 (a rail provided at the lower side of the vehicle) nor a middle rail 20 (a rail provided at the lower side of the vehicle). Figure 1 The center track of the vehicle shown) is also missing, nor is the upper track 30 (set at Figure 1 The track on the upper side of the vehicle shown).

[0028] The sliding door 1 includes a front door and a rear door, and the structure for preventing the sliding door from shaking according to the exemplary embodiment of the present invention is applied to the lower track 100 of the front door or the rear door. Therefore, the structures for preventing the sliding door from shaking respectively applied to the front door and the rear door are the same in configuration and working principle. However, in this specification, an example in which the structure for preventing the sliding door from shaking is applied to any one of the sliding doors 1 will be described.

[0029] Figure 2 is a schematic diagram showing a state in which a structure for preventing a sliding door from shaking according to an exemplary embodiment of the present invention is applied to a vehicle door, and Figure 3 for Figure 2 Schematic diagram of the enlarged portion E.

[0030] refer to Figure 2 and Figure 3 The structure for preventing the sliding door from shaking according to the exemplary embodiment of the present invention is disposed at the lower side of the vehicle body 2 and the door 1, and includes a lower rail 100, a rail roller unit 200, a slider 300, a moving support unit 400 (see Figure 8 ) and a swivel assembly 500.

[0031] In this case, the track roller unit 200 moves in the longitudinal direction (T direction) of the vehicle body 2, and the T direction is defined as the first direction in this specification. In addition, the mobile support unit 400 moves in the width direction (L direction) of the vehicle body 2, and the L direction is defined as the second direction in this specification.

[0032] Figure 4 Schematic diagram showing a state in which a sliding module according to an exemplary embodiment of the present invention is connected to a lower track. Meanwhile, for the convenience of description, Figure 4 The track roller unit 200 is omitted.

[0033] refer to Figure 4 , the lower rail 100 extends in the longitudinal direction of the vehicle body 2 and is mounted to the vehicle body 2. In an exemplary embodiment of the present invention, the lower rail 100 is a linear type rail.

[0034] A roller groove (not shown in the figure) is formed on one surface (the surface facing the vehicle door 1) of the lower rail 100. The driving sliding module 110 is located near the other surface (the surface facing the vehicle body 2) of the lower rail 100, and the first sliding module 120 and the second sliding module 130 are located near both sides of the lower rail 100 in the longitudinal direction (the fully closed position or the fully opened position of the vehicle door 1).

[0035] The driving sliding module 110 provides a driving force to the track roller unit 200 so that the track roller unit 200 can move in the longitudinal direction (first direction) along the lower track 100. The driving sliding module 110 includes a motor that can rotate in the forward or reverse direction. The driving sliding module 110 and the first sliding module 120 are connected to the 1-1 cable 112, and the driving sliding module 110 and the second sliding module 130 are connected to the 2-1 cable 114. The first sliding module 120 changes the direction of the 1-1 cable 112 and guides the 1-1 cable 112 to one side of the lower track 100, thereby defining the 1-2 cable 122. The 1-2 cable 122 is converted to the first direction by being guided by the first pulley 102 installed on one side of the lower track 100, and then connected to the track roller unit 200. The second sliding module 130 changes the direction of the 2-1 cable 114 and guides the 2-1 cable 114 to the other side of the lower track 100, thereby defining the 2-2 cable 134. The 2-2nd cable 134 is converted to the first direction by being guided by the second pulley 104 installed at the other side of the lower rail 100 , and then connected to the rail roller unit 200 .

[0036] When the motor driving the sliding module 110 rotates in one direction, the 1-1 cable 112 and the 1-2 cable 122 are pulled toward the driving sliding module 110, so that the track roller unit 200 rotates in any direction of the first direction (for example, in the direction based on Figure 4 On the contrary, when the motor driving the sliding module 110 rotates in the other direction, the 2-1 cable 114 and the 2-2 cable 134 are pulled toward the driving sliding module 110, so that the track roller unit 200 moves in the other direction of the first direction (for example, in the left direction based on Figure 4 Therefore, the track roller unit 200 can be moved in the first direction by the driving force of the sliding module 110.

[0037] Figure 5 2 is a schematic diagram showing a state in which a slider is engaged with a track roller unit according to an exemplary embodiment of the present invention, Figure 6 To show along Figure 5 A schematic diagram of a cross section obtained by line SS′ in FIG. Figure 72 is a schematic diagram illustrating a state in which a rail roller unit is connected to a lower rail according to an exemplary embodiment of the present invention.

[0038] refer to Figure 3 , Figure 5 and Figure 7 , the track roller unit 200 is rollably connected to the lower track 100. The first roller 202 is provided on one surface of the track roller unit 200 to be inserted into a roller groove (whose reference numeral is not shown) of the lower track 100. When the first roller 202 is inserted into the roller groove, the track roller unit 200 can roll along the lower track 100 in the first direction. In this case, the first roller 202 serves as a bearing.

[0039] The cable holders 204 and 206 are provided at both sides of the track roller unit 200. One end of the 1-2 cable 122 is connected to the first cable holder 204, and one end of the 2-2 cable 134 is connected to the second cable holder 206.

[0040] The slider 300 is fixedly mounted to the track roller unit 200 at one side in the longitudinal direction thereof. The slider 300 has a predetermined length and a predetermined width. In this case, the predetermined length refers to a length when the slider does not interfere with the door 1 in a state where the door 1 is fully closed. The predetermined width refers to a width when the slider can support the door 1. The length and width of the slider 300 can be set without restriction.

[0041] The inner space extends in the longitudinal direction of the slider 300, and the moving support unit 400 described below can be inserted into the inner space. The inner space can be called a moving route, and the moving support unit 400 can roll along the moving route. There is no limitation on the position of the inner space formed in the slider 300. In addition, the area of ​​the slider 300 other than the inner space can have a structure and material that can maintain the rigidity of the slider 300.

[0042] refer to Figure 6 The internal space has roller moving paths 304a and 304b, and a supporting member moving path 302, in which a second roller 412 to be described below can move, and in which a supporting member 410 can move. Figure 6 It is illustrated that the roller moving paths 304 a and 304 b are formed at both sides of the supporting member moving path 302 , but the shape of the inner space may vary according to the shape of the moving supporting unit 400 .

[0043] Figure 8 1 is a schematic diagram illustrating a state in which a swivel assembly and a moving support unit are connected to a vehicle door according to an exemplary embodiment of the present invention.

[0044] The mobile support unit 400 includes a support member 410 and a second roller 412. One end of the support member 410 may be fixedly mounted to the vehicle door 1 by a mounting bracket 420. The support member 410 may have a structure sufficient to support the vehicle door 1 and may be made of a material having a rigidity sufficient to support the vehicle door 1. The second roller 412 is disposed at the other end of the support member 410. According to an exemplary embodiment of the present invention, the second rollers 412 are disposed at both sides of the support member 410, but the positions of the second rollers 412 disposed on the support member 410 and the number of the second rollers 412 are not limited.

[0045] As described above, the moving support unit 400 can be inserted into the inner space of the slider 300 having a shape corresponding to the shape of the moving support unit 400, and the moving support unit 400 can roll. In this case, the second roller 412 serves as a bearing. When the moving support unit 400 installed on the door 1 and the slider 300 installed on the track roller unit 200 are connected to each other, the door 1 and the vehicle body 2 face each other. In this case, the moving support unit 400 can move in the second direction relative to the slider 300.

[0046] The swivel assembly 500 is used to move the vehicle door 1 in the second direction, and includes a fixing unit 510 , a swivel 520 , and a swivel guide unit 530 .

[0047] One surface of the fixing unit 510 is fixedly coupled to the slider 300. The fixing unit 510 has a swivel seat 512 such that the swivel 520 is inserted into the swivel seat 512. A threaded corresponding portion (not shown) is formed on the inner circumferential surface of the swivel seat 512. In addition, the fixing unit 510 has a guide seat 514 such that the swivel guide unit 530 is inserted into the guide seat 514.

[0048] The swivel 520 is arranged in the length direction and connected and inserted into the swivel seat 512. A threaded portion is formed on the outer circumferential surface of the swivel 520. The threaded portion of the swivel 520 is threadedly engaged with a threaded counterpart formed on the inner circumferential surface of the swivel seat 512. Therefore, the swivel 520 can be threadedly moved in the length direction relative to the swivel seat 512 fixed to the fixing unit 510.

[0049] One end of the swivel 520 is rotatably mounted to the mounting bracket 420 fixed to the vehicle door 1, and the other end of the swivel 520 is connected to the guide bracket 522. The swivel motor 540 is connected to the guide bracket 522. The swivel motor 540 is a motor that rotates in the forward or reverse direction and provides a driving force to the swivel 520, so that the swivel 520 can move in the length direction (second direction).

[0050] At the same time, the swivel guide unit 530 guides the movement of the swivel 520. The swivel guide units 530 are inserted into the guide seat 514 and are arranged on both sides of the swivel 520 in the length direction. One end of the swivel guide unit 530 may be fixedly connected to the mounting bracket 420, and the other end of the swivel guide unit 530 is connected to the guide bracket 522. However, the position and number of the swivel guide units 530 are not limited.

[0051] On the other hand, the structure according to the exemplary embodiment of the present invention further includes a position sensor (not shown) and a control unit (not shown) connected to the driving slide module 110 and the swivel motor 540 .

[0052] The position sensor (not shown) measures the position of the door 1 on the lower rail 100 and sends the measured position to the control unit. The fully closed position and the fully opened position of the door on the lower rail 100 are set in advance.

[0053] The control unit receives the measured value from the position sensor, rotates the motor driving the sliding module 110 and the swivel motor 540, and controls the opening, closing and movement operations of the door 1. For example, when the fully opened position is measured by the position sensor while the door 1 is opened, the control unit controls and stops the movement of the door 1.

[0054] When the door 1 moves in either direction, the control unit may control and limit the movement of the door 1 in the other direction. For example, when the motor driving the sliding module 110 rotates, the control unit may limit the rotation of the swivel motor 540.

[0055] 9A to 9C 1 is a schematic diagram illustrating a state in which a structure for preventing a sliding door from shaking according to an exemplary embodiment of the present invention operates when the vehicle door moves from a closed state to an open state.

[0056] In the following, reference will be made to 9A to 9C An operation process of a structure for preventing a sliding door from shaking according to an exemplary embodiment of the present invention is described.

[0057] Fig.9A The vehicle door 1 is shown in a closed state. The track roller unit 200 is located at a fully closed position of the vehicle door 1 on the lower track 100. The swivel 520 is fully rotated in one direction, and the moving support unit 400 is fully inserted into the slider 300.

[0058] Fig. 9B Shown in Fig.9AThe operation of opening the door 1 is performed in the state shown. In order to perform the operation of opening the door 1 in the fully closed state of the door 1, the door 1 needs to be moved to a position where the door 1 and the vehicle body 2 do not interfere with each other. Therefore, the control unit controls and causes the swivel motor 540 to rotate in the other direction. Then, the swivel 520 rotates in the other direction and moves in any one direction in the second direction (the direction in which the door 1 and the vehicle body 2 move away from each other). In this case, the support member 410 moves the door 1 in the same direction while moving along the internal space of the slider 300.

[0059] In this case, the distance that the door 1 moves in the second direction may be variously set to a distance that prevents interference between the door 1 and the vehicle body 2 .

[0060] When performing the operation of opening the vehicle door 1, the moving support unit 400 is used to prevent the vehicle door 1 from shaking while supporting the load of the vehicle door 1. Specifically, in an exemplary embodiment of the present invention, the rotation axis of the second roller 412 is formed in the first direction and connected to the support member 410, and the support member 410 moves in the second direction, thereby preventing the vehicle door 1 from shaking in the T direction. In addition, since the support member 410 bears the load of the vehicle door 1 when the vehicle door 1 moves, the vehicle door 1 is prevented from shaking in the H direction (the width direction of the vehicle body 2). In addition, even when the vehicle door 1 moves in the second direction, the friction force generated by the threaded engagement of the rotary shaft 520 can prevent the vehicle door 1 from shaking in the L direction.

[0061] On the other hand, there is a problem that when the door 1 is opened, if the door 1 moves in both the first direction and the second direction, the door 1 will shake. In order to prevent this problem, when the door 1 is opened, the control unit according to the exemplary embodiment of the present invention controls and prevents the track roller unit 200 from moving in the first direction.

[0062] When the operation of opening the door 1 is completed, the control unit rotates the motor driving the sliding module 110 in the other direction to move the door 1 in any one of the first directions (the directions of opening the door 1). In this case, the control unit controls and stops the movement of the rotary shaft 520 so that the door 1 no longer moves in the second direction.

[0063] refer to Fig. 9C The control unit controls and moves the vehicle door 1 in the first direction so that the vehicle door 1 moves to a fully opened position on the lower track 100 .

[0064] The moving support unit 400 and the track roller unit 200 are used to prevent the vehicle door 1 from shaking while the vehicle door 1 moves. Specifically, in an exemplary embodiment of the present invention, the rotation axis of the first roller 202 is formed in the second direction and connected to the track roller unit 200, and the track roller unit 200 moves in the first direction, thereby preventing the vehicle door 1 from shaking in the L direction. In addition, since the first roller 202 is inserted into the roller groove formed in the lower track 100 in the up-down direction, the vehicle door 1 is prevented from shaking in the H direction. In addition, since the support member 410 bears the load of the vehicle door 1 when the vehicle door 1 moves, the vehicle door 1 is prevented from shaking in the H direction.

[0065] at the same time, 9A to 9C A process of opening the door 1 in a fully closed state and then moving the door 1 is shown, and a process of moving the door 1 in a fully opened state and then closing the door 1 may be performed by reversely performing the above process.

[0066] As described above, even if the vehicle body 2 has only the lower rail 100 , the structure for preventing the sliding door from shaking according to the exemplary embodiment of the present invention can prevent the vehicle door 1 from shaking while opening, closing, and moving the vehicle door 1 .

[0067] The present invention has been described with reference to limited exemplary embodiments and drawings, but the present invention is not limited thereto. The described exemplary embodiments can be variously changed or modified by those skilled in the art within the technical spirit of the present invention and within the scope equivalent to the appended claims.

Claims

1. A structure for preventing a sliding door from shaking, the structure include: A track configured to be installed along a first direction, the first direction being a longitudinal direction of the vehicle body; a track roller unit rollably connected to the track; a sliding module configured to apply a driving force in a first direction to the track roller unit through a cable; a slider mounted on the track roller unit; a mobile support unit configured to support the sliding door, wherein a first side of the mobile support unit is configured to be fixed to the sliding door and a second side of the mobile support unit is rollably connected to the slider; and a swivel assembly configured to operate a swivel between the sliding door and the track to move the sliding door in a second direction perpendicular to the first direction, the second direction being a width direction of the vehicle body; In which, the sliding module and the swivel assembly are configured to operate separately to prevent the sliding door from shaking according to the stage of the opening or closing process during the process of opening or closing the sliding door, so that the sliding door moves in any one of the first and second directions in the first stage of the opening or closing process, and then moves in the other direction of the first and second directions in the second stage of the opening or closing process.

2. The structure for preventing a sliding door from shaking according to claim 1, in, The rail is configured to be disposed on a lower side of a vehicle body and to have a straight line shape.

3. The structure for preventing a sliding door from shaking according to claim 1, in, The track roller unit has a cable holder to which a cable is connected.

4. The structure for preventing a sliding door from shaking according to claim 1, in, The track has a pulley configured to guide a cable to the track roller unit.

5. The structure for preventing a sliding door from shaking according to claim 1, in, The slider has an inner space into which the moving support unit is inserted.

6. The structure for preventing a sliding door from shaking according to claim 5, in, The inner space includes a rolling path for moving the supporting unit.

7. The structure for preventing a sliding door from shaking according to claim 1, in, The mobile support unit comprises: a support member configured to be mounted to the sliding door in a second direction; and A roller is configured to be rotatably connected to the support member.

8. The structure for preventing a sliding door from shaking according to claim 7, in, The rollers are arranged on both sides of the supporting member.

9. The structure for preventing a sliding door from shaking according to claim 1, in, The sliding door is configured to move in the second direction during a first phase of an opening process and to move in the first direction during a second phase of an opening process.

10. The structure for preventing a sliding door from shaking according to claim 1, in, The sliding door is configured to move in a first direction during a first phase of a closing process and then move in a second direction during a second phase of a closing process.

11. A structure for preventing a sliding door from shaking, the structure include: A track configured to be installed along a first direction, the first direction being a longitudinal direction of the vehicle body; a track roller unit configured to be rollably coupled to the track; a sliding module configured to apply a driving force in a first direction to the track roller unit through a cable; a slider mounted on the track roller unit; a mobile support unit configured to support the sliding door, wherein a first side of the mobile support unit is configured to be fixed to the sliding door, and a second side of the mobile support unit is configured to be rollably connected to the slider; and A swivel assembly configured to operate a swivel between a sliding door and a track so as to move the sliding door in a second direction perpendicular to the first direction, wherein the second direction is a width direction of the vehicle body, wherein the swivel assembly comprises: a fixing unit fixed to the slider; a swivel connected to the fixing unit so as to be threadably movable relative to the fixing unit; and A rotary shaft motor configured to rotate the rotary shaft in a forward or reverse direction; In which, the sliding module and the swivel assembly are configured to operate separately to prevent the sliding door from shaking according to the stage of the opening or closing process during the process of opening or closing the sliding door, so that the sliding door moves in any one of the first and second directions in the first stage of the opening or closing process, and then moves in the other direction of the first and second directions in the second stage of the opening or closing process.

12. The structure for preventing a sliding door from shaking according to claim 11, in, The swivel assembly further includes a swivel guide unit disposed parallel to the swivel and configured to guide the threaded movement of the swivel relative to the fixing unit.

13. The structure for preventing a sliding door from shaking according to claim 11, in, The fixing unit has a swivel seat, and the swivel seat is threadedly engaged with the swivel.

14. A vehicle, include: Car body; a sliding door coupled to the vehicle body; A rail mounted on the lower side of the vehicle body along a first direction, wherein the first direction is a longitudinal direction of the vehicle body; a track roller unit rollably connected to the track; a sliding module configured to apply a driving force in a first direction to the track roller unit through a cable; a slider mounted on the track roller unit; a mobile support unit configured to support the sliding door, wherein a first side of the mobile support unit is configured to be fixed to the sliding door, and a second side of the mobile support unit is configured to be rollably connected to the slider; and a swivel assembly configured to operate a swivel between the sliding door and the track to move the sliding door in a second direction perpendicular to the first direction, the second direction being a width direction of the vehicle body; In which, the sliding module and the swivel assembly are configured to operate separately to prevent the sliding door from shaking according to the stage of the opening or closing process during the process of opening or closing the sliding door, so that the sliding door moves in any one of the first and second directions in the first stage of the opening or closing process, and then moves in the other direction of the first and second directions in the second stage of the opening or closing process.

15. The vehicle according to claim 14, in, The track has a straight shape.

16. The vehicle according to claim 14, in: The track roller unit has a cable holder to which the cable is connected; The track has a pulley configured to guide the cable to the track roller unit; The slider has an inner space into which the moving support unit is inserted, wherein the inner space includes a rolling path for the moving support unit.

17. The vehicle according to claim 14, in, The mobile support unit comprises: a support member mounted to the sliding door in a second direction; and Rollers are provided at both sides of the support member and are rotatably connected to the support member.

18. The vehicle according to claim 14, in, The swivel assembly comprises: a fixing unit fixed to the slider, wherein the fixing unit has a swivel seat; a swivel threadedly engaged to the fixing unit; a swivel motor configured to rotate the swivel in a forward or reverse direction; and The swivel guide unit is arranged parallel to the swivel and configured to guide the threaded movement of the swivel relative to the fixing unit.

19. The vehicle according to claim 14, in, The sliding door is configured to move in the second direction during a first phase of the opening process and then move in the first direction during a second phase of the opening process.

20. The vehicle according to claim 14, in, The sliding door is configured to move in a first direction during a first phase of a closing process and then move in a second direction during a second phase of a closing process.

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