Door opening and closing device

Abstract

A vehicle door opening and closing device includes a vehicle door; a track configured to be mounted on a vehicle body; a roller unit mounted on the vehicle door and configured to allow the vehicle door to open and close in a sliding mode and a swing mode, wherein in the sliding mode the vehicle door is configured to slide along the track and in the swing mode the vehicle door is configured to swing at a predetermined position on the track; and a holding lock that releasably holds the vehicle door in an open position or releasably holds the vehicle door in a closed position when the vehicle door is opened and closed in the sliding mode, respectively.

Description

Technical Field

[0001] This disclosure relates to a door opening and closing device. Background Technology

[0002] The vehicle has doorways for passengers to enter and exit the passenger compartment. Doors close to block the doorways, and doors open to allow passengers to pass through them into and out of the passenger compartment. Doors are divided into swing doors and sliding doors. Swing doors open and close by swinging about hinges mounted between the swing door and the vehicle body. Sliding doors open and close by causing rollers mounted on the sliding door to slide along tracks mounted on the vehicle body.

[0003] Swing doors are very easy to open and close, allowing passengers to enter and exit quickly. However, when a swing door is open, the space available for entry and exit is relatively small. When the vehicle is in a confined space, the swing trajectory of the door cannot be guaranteed, making the opening and closing operation difficult.

[0004] Even when the vehicle is in a confined space, sliding doors are very easy to open and close. When a sliding door is open, the space available for entry and exit is relatively large. However, sliding doors require relatively more force and time to open and close, which hinders the quick entry and exit of passengers.

[0005] According to relevant technologies, since car doors are operated using a single opening and closing method, it may be difficult to fully respond to the needs of customers seeking ease of use, versatility, and novelty.

[0006] The vehicle also includes an open-retaining lock that releasably holds the door in the open position and a close-retaining lock that releasably holds the door in the closed position. An open strike pin can be mounted on the vehicle body and positioned corresponding to the open position of the door. The latch of the open-retaining lock can releasably engage with the open strike pin. The door can be releasably held by the open-retaining lock and the open strike pin. A close strike pin can be mounted on the vehicle body and positioned corresponding to the closed position of the door. The latch of the close-retaining lock can releasably engage with the close strike pin. The door can be releasably held by the close-retaining lock and the close strike pin.

[0007] However, because the doors of the relevant technologies have two releasable retaining locks (open retaining lock and closed retaining lock) that hold different strikers, the doors may have a complex structure, require a relatively large number of parts, increase the amount of assembly work, provide poor door operation quality, and increase cost and weight.

[0008] The information described above in this background section is intended to help understand the background of the inventive concept and may include any technical concept known to those skilled in the art that is not considered prior art. Summary of the Invention

[0009] The embodiments disclosed herein can solve the problems that exist in the prior art, while maintaining the advantages achieved by the prior art.

[0010] This disclosure relates to a vehicle door opening and closing device. Specific embodiments relate to a vehicle door opening and closing device that allows a vehicle door to open and close in a mode selectable from a sliding mode and a swing mode.

[0011] Embodiments of this disclosure provide a door opening and closing device that allows the door to open and close in one of a swing mode and a sliding mode, thereby meeting customer needs.

[0012] According to embodiments of this disclosure, a vehicle door opening and closing device may include: a vehicle door; a track mounted on the vehicle body; a roller unit mounted on the vehicle door and allowing the vehicle door to open and close in one of a sliding mode and a swing mode, wherein in the sliding mode the vehicle door slides along the track and in the swing mode the vehicle door swings at a predetermined position on the track; and a retaining lock that releasably retains the vehicle door in the open position and releasably retains the vehicle door in the closed position when the vehicle door is opened and closed in the sliding mode.

[0013] The retaining lock may include a first latch and a second latch, the first latch being releasably engaged with a first striker mounted on the vehicle body and positioned corresponding to a closed position, and the second latch being releasably engaged with a second striker mounted on the vehicle body and positioned corresponding to an open position.

[0014] The retaining lock may include a first pawl operatively connected to a first latch and a second pawl operatively connected to a second latch.

[0015] The first and second latches can partially overlap each other, forming a single, integral structure, and can pivot via a first hinge axis.

[0016] The first latch may include a first main slot for receiving a first firing pin, and the second latch may include a second main slot for receiving a second firing pin.

[0017] The first latch can move between a first engaged position and a first released position. The first engaged position can refer to the position where the first latch engages with the first firing pin, and the first released position can refer to the position where the first latch releases the first firing pin. The second latch can move between a second engaged position and a second released position. The second engaged position can refer to the position where the second latch engages with the second firing pin, and the second released position can refer to the position where the second latch releases the second firing pin.

[0018] The first and second latches can be biased to the first and second release positions by the first biasing element.

[0019] The first and second jaws can pivot via the second hinge axis.

[0020] The first latch and the second latch can form an integral one-piece structure. The first latch can be aligned with the second latch, and the second latch can be aligned with the first latch. The first latch can have a first locking shoulder that can be releasably engaged with the second latch, and the second latch can have a second locking shoulder that can be releasably engaged with the first latch.

[0021] The first chuck can move between a locked position and a released position. The locked position can refer to the position where the first chuck is locked to the second locking shoulder, and the released position can refer to the position where the first chuck is released from the second locking shoulder. The second chuck can move between a locked position and a released position. The locked position can refer to the position where the second chuck is locked to the first locking shoulder, and the released position can refer to the position where the second chuck is released from the first locking shoulder.

[0022] The first and second jaws can be biased to the first jaw locking position and the second jaw locking position by the second biasing element.

[0023] The retaining lock may also include a first release lever operatively connected to a first pawl and a second release lever operatively connected to a second pawl, and the first pawl, the second pawl, the first release lever and the second release lever may pivot via a second hinge axis.

[0024] The retaining lock may further include a first release lever pivoting with a first jaw and a second release lever pivoting with a second jaw, and the first and second release levers may be connected to a cable. When the cable is pulled, the first release lever may be configured to allow the first latch to release the first striking pin, and when the cable is pulled, the second release lever may be configured to allow the second latch to release the second striking pin.

[0025] The retaining lock may further include a first lever operatively connected to a first jaw and a second lever operatively connected to a second jaw, and the first and second levers may be connected to a cable. When the cable is pulled, the first lever may be configured to allow the first latch to release the first striking pin, and when the cable is pulled, the second lever may be configured to allow the second latch to release the second striking pin.

[0026] The first and second latches can be connected by a connecting part, and the first latch can be spaced apart from the second latch. Attached Figure Description

[0027] The above and other objects, features and advantages of embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 A door opening and closing device according to an exemplary embodiment of the present disclosure is shown, which is mounted on the rear door of a vehicle;

[0029] Figure 2 The selector of the outer handlebar of the adjacent vehicle, the actuator connected to the selector, and the retaining lock are shown;

[0030] Figure 3 It shows Figure 1 The door in its open state in sliding mode;

[0031] Figure 4 It shows Figure 1 The door is in the open state in swing mode;

[0032] Figure 5 The diagram illustrates the movement of the upper roller unit and the lower roller unit along the upper and lower rails in a door opening and closing device according to an exemplary embodiment of the present disclosure, when the door is opened and closed in sliding mode;

[0033] Figure 6 The diagram illustrates the state in which the door pivots via the upper roller unit and the lower roller unit when the door is opened and closed in a swing mode in a door opening and closing device according to an exemplary embodiment of the present disclosure;

[0034] Figure 7 An upper roller unit and a lower roller unit in a door opening and closing device according to an exemplary embodiment of the present disclosure are shown;

[0035] Figure 8 A perspective view of an upper roller unit and a lower roller unit in a door opening and closing device according to an exemplary embodiment of the present disclosure is shown;

[0036] Figure 9 The image shows a state in which a retaining lock is mounted on the body of a roller unit in a door opening and closing device according to an exemplary embodiment of the present disclosure;

[0037] Figure 10 A perspective view of a retaining lock in a door opening and closing device according to an exemplary embodiment of the present disclosure is shown;

[0038] Figure 11 It shows Figure 10 The side view of the retaining lock shown;

[0039] Figure 12 It shows Figure 10A perspective view of the first and second latches, the first and second pawls, and the first and second release levers in the retaining lock shown;

[0040] Figure 13 It shows Figure 10 The diagram shows a plan view of the first and second latches, the first and second pawls, and the first and second release levers in the retaining lock.

[0041] Figure 14 It shows Figure 10 The first and second latches in the retaining lock are shown;

[0042] Figure 15 It shows Figure 14 Side view of the first and second latches shown;

[0043] Figure 16 It shows Figure 10 A perspective view of the first pawl in the retaining lock shown;

[0044] Figure 17 It shows Figure 10 A perspective view of the second pawl in the retaining lock shown;

[0045] Figure 18 It shows Figure 10 A perspective view of the first release lever in the retaining lock shown;

[0046] Figure 19 It shows Figure 10 A perspective view of the second release lever in the retaining lock shown;

[0047] Figure 20 It shows the use of Figure 10 A perspective view of the mounting plate for the retaining lock shown;

[0048] Figure 21 It shows Figure 10 The lock's first pawl is shown in the first released position.

[0049] Figure 22 This shows the state in which the first latch begins to engage with the first upper striker and the first lower striker when the door approaches the first closed position;

[0050] Figure 23 This shows the state in which the first latch is fully engaged with the first upper striker and the first lower striker when the door is fully moved to the first closed position;

[0051] Figure 24 It shows Figure 10 The second latch of the retaining lock is shown in the second released position;

[0052] Figure 25 This shows the state in which the second latch begins to engage with the second upper striker and the second lower striker when the door approaches the first open position;

[0053] Figure 26 This shows the state in which the second latch is fully engaged with the second upper striker and the second lower striker when the door is fully moved to the first open position;

[0054] Figure 27 This illustrates the state in which the first release lever and the second release lever pivot in the direction of movement of the first and second levers when the first and second levers are pulled by the cable;

[0055] Figure 28 This shows the state in which the first pawl and the second pawl move to the first pawl release position and the second pawl release position when the first release lever and the second release lever are pivoted;

[0056] Figure 29 The diagram shows the states of the first latch and the second latch moving to the first release position and the second release position when the first latch and the second latch move to the first release position and the second release position, respectively.

[0057] Figure 30 The main latch and main strike pin mounted on the door are shown;

[0058] Figure 31 A perspective view of an intermediate track in a door opening and closing device according to an exemplary embodiment of the present disclosure is shown;

[0059] Figure 32 It shows Figure 31 A cross-sectional view of the swing guide of the central track shown;

[0060] Figure 33 It shows Figure 31 A cross-sectional view of the sliding guide of the middle track shown;

[0061] Figure 34 A perspective view of a central roller unit received in a swing guide on a central track is shown;

[0062] Figure 35 The operation of the central roller unit being released from the swing guide of the central track is shown;

[0063] Figure 36 An exemplary embodiment of the present disclosure is shown of a door opening and closing device applied to the front door of a vehicle when the front door is open in sliding mode.

[0064] Figure 37 It shows Figure 36 The front door is open in swing mode;

[0065] Figure 38 An exemplary embodiment of the present disclosure illustrates a door opening and closing device for a vehicle, with the front and rear doors open in sliding mode; the door opening and closing device is applied to the front and rear doors of the vehicle; and

[0066] Figure 39 It shows Figure 38 The front and rear doors are open in swing mode. Detailed Implementation

[0067] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals will always be used to denote the same or equivalent elements. Furthermore, detailed descriptions of well-known technologies associated with the present disclosure will be omitted so as not to unnecessarily obscure the gist of the disclosure.

[0068] Terms such as first, second, A, B, (a), and (b) may be used to describe elements in exemplary embodiments of this disclosure. These terms are used only to distinguish one element from another, and the inherent characteristics, order, or sequence of corresponding elements are not limited by the terms. Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as those commonly understood by one of ordinary skill in the art to which this disclosure pertains. These terms, as defined in commonly used dictionaries, shall be interpreted as having the same meaning as in the context of the relevant field, and should not be interpreted as having an ideal or overly formal meaning unless clearly defined as having such a meaning in this application.

[0069] The door opening and closing device according to an exemplary embodiment of the present disclosure can allow the door to be selectively opened and closed in either a sliding mode or a swing mode. In other words, the door opening and closing device according to an exemplary embodiment of the present disclosure can be a transformable door opening and closing device. The sliding mode allows the door to open and close by sliding in the longitudinal direction of the vehicle, and the swing mode allows the door to open and close by swinging inward and outward.

[0070] refer to Figure 1 The vehicle body 1 may have multiple door openings 2 and 3, and these multiple door openings 2 and 3 may be divided into front opening 2 and rear opening 3. Multiple doors 4 and 5 may include a front door 4 that covers and exposes the front opening 2, and a rear door 5 that covers and exposes the rear opening 3. When the front door 4 is open, the front door 4 can expose the front opening 2, and when the front door 4 is closed, the front door 4 can cover the front opening 2. When the rear door 5 is open, the rear door 5 can expose the rear opening 3, and when the rear door 5 is closed, the rear door 5 can cover the rear opening 3.

[0071] The door opening and closing device according to the exemplary embodiments of this disclosure can be applied to the front door 4, the rear door 5, etc. Figures 1 to 4 A door opening and closing device according to an exemplary embodiment of the present disclosure is shown, which is applied to a rear door 5. Hereinafter, the rear door 5 will be referred to as door 5, and the rear opening 3 will be referred to as door opening 3.

[0072] A door opening and closing device according to an exemplary embodiment of this disclosure may include one or more rails 11 and 12 mounted on the vehicle body 1, and the rails 11 and 12 may extend in the longitudinal direction of the vehicle. (See reference...) Figure 1 The upper rail 11 can be installed on the upper edge of the vehicle body 1, and the lower rail 12 can be installed on the lower edge of the vehicle body 1. The upper rail 11 and the lower rail 12 can extend in the longitudinal direction of the vehicle. The upper rail 11 can be set on the upper edge of the doorway 3, and the lower rail 12 can be set on the lower edge of the doorway 3.

[0073] According to an exemplary embodiment of this disclosure, the door opening and closing device may include roller units 21 and 22 guided along tracks 11 and 12. Roller units 21 and 22 may allow the door 5 to open and close in one of a sliding mode and a swing mode. Specifically, roller units 21 and 22 may be releasably held in predetermined positions on tracks 11 and 12 by retaining locks 31 and 32. Specifically, when roller units 21 and 22 are held in predetermined positions on tracks 11 and 12 by retaining locks 31 and 32, the door 5 may open and close in a swing mode in which the door swings at the predetermined positions on tracks 11 and 12. When roller units 21 and 22 are released by retaining locks 31 and 32, the door 5 may open and close in a sliding mode in which the door slides along tracks 11 and 12.

[0074] refer to Figure 1 and Figure 3 The upper roller unit 21 can be installed on the upper end of the door 5, and the upper roller unit 21 can slide along the upper track 11. The lower roller unit 22 can be installed on the lower end of the door 5, and the lower roller unit 22 can slide along the lower track 12.

[0075] refer to Figure 2 The door 5 may include an outer handle 6, and a selector 40 for selecting a sliding mode and a swing mode may be provided on the outer handle 6 or on the door adjacent to the outer handle 6. The selector 40 may have a first switch 41 for selecting a sliding mode and a second switch 42 for selecting a swing mode.

[0076] When the user presses the first switch 41 and selects the sliding mode, the door 5 can slide along the outer handle 6 as the user pushes it forward or pulls it backward. Figure 3The upper track 11, lower track 12, and center track 13 shown slide. In sliding mode, the door 5 can move between a first open position OP1 where the door 5 is fully open and a first closed position CP1 where the door 5 is fully closed, as shown. Figure 1 and Figure 3 As shown.

[0077] When the user presses the second switch 42 and selects the swing mode, the door 5 can open as the user pushes or pulls the outer handle 6 towards the passenger compartment or towards the outside of the vehicle. Figure 4 The door 5 swings as shown. In the swing mode, the door 5 can move between the second open position OP2 where the door 5 is fully open and the second closed position CP2 where the door 5 is fully closed, as shown. Figure 6 As shown. In particular, when the door 5 is held in the first closed position CP1, it can be operated in swing mode.

[0078] The upper roller unit 21 may have an upper retaining lock 31, and the vehicle body 1 may have a first upper striking pin 31a and a second upper striking pin 31b extending downward from the top of the vehicle body 1. The first upper striking pin 31a may be aligned with or adjacent to the virtual axis of the first closed position CP1, and the second upper striking pin 31b may be aligned with or adjacent to the virtual axis of the first open position OP1.

[0079] According to exemplary embodiments, such as Figure 1 and Figure 3 As shown, the upper retaining lock 31 can releasably retain the first upper striking pin 31a in the first closed position CP1, and releasably retain the second upper striking pin 31b in the first open position OP1. (See reference) Figures 9 to 29 The upper retaining lock 31 can selectively retain the first upper striking pin 31a and the second upper striking pin 31b. Because the upper retaining lock 31 retains the first upper striking pin 31a, the upper roller unit 21 can be securely held in the first closed position CP1, allowing the door 5 to remain in the first closed position CP1. Because the upper retaining lock 31 retains the second upper striking pin 31b, the upper roller unit 21 can be securely held in the first open position OP1, allowing the door 5 to remain in the first open position OP1.

[0080] According to another exemplary embodiment, the upper retaining lock 31 can releasably retain the first upper striking pin 31a in the first closed position CP1, so that the door 5 can be held in the first closed position CP1. That is, the upper retaining lock 31 can be an upper closing retaining lock, which holds the closed state of the door 5 in the first closed position CP1. An upper opening retaining lock (not shown) can be mounted on the upper roller unit 21, and can releasably retain the second upper striking pin 31b in the first open position OP1. That is, the upper closing retaining lock that releasably retains the first upper striking pin 31a in the first closed position CP1 and the upper opening retaining lock that releasably retains the second upper striking pin 31b in the first open position OP1 can be separately mounted on the upper roller unit 21.

[0081] refer to Figure 4 The upper roller unit 21 may have an upper rotation axis CX1, and the door 5 may rotate about the upper rotation axis CX1. When the upper roller unit 21 is securely held in the first closed position CP1 by the upper retaining lock 31 and the first upper striking pin 31a, the door 5 may rotate about the upper rotation axis CX1.

[0082] The lower roller unit 22 may have a lower retaining lock 32, and the vehicle body 1 may have a first lower striking pin 32a and a second lower striking pin 32b extending upward from the bottom of the vehicle body 1. The first lower striking pin 32a may be aligned with or adjacent to the virtual axis of the first closed position CP1, and the second lower striking pin 32b may be aligned with or adjacent to the virtual axis of the first open position OP1.

[0083] According to exemplary embodiments, such as Figure 1 and Figure 3 As shown, the lower retaining lock 32 can releasably retain the first lower striking pin 32a in the first closed position CP1, and releasably retain the second lower striking pin 32b in the first open position OP1. (Reference) Figures 9 to 29 The lower retaining lock 32 can selectively retain the first lower striking pin 32a and the second lower striking pin 32b. Because the lower retaining lock 32 retains the first lower striking pin 32a, the lower roller unit 22 can be securely held in the first closed position CP1, allowing the door 5 to remain in the first closed position CP1. Because the lower retaining lock 32 retains the second lower striking pin 32b, the lower roller unit 22 can be securely held in the first open position OP1, allowing the door 5 to remain in the first open position OP1.

[0084] According to another exemplary embodiment, the lower retaining lock 32 can releasably retain the first lower striking pin 32a in the first closed position CP1, so that the door 5 can be held in the first closed position CP1. That is, the lower retaining lock 32 can be a lower closing retaining lock, which holds the closed state of the door 5 in the first closed position CP1. The lower opening retaining lock (not shown) can be mounted on the lower roller unit 22, and can releasably retain the second lower striking pin 32b in the first open position OP1. That is, the lower closing retaining lock that releasably retains the first lower striking pin 32a in the first closed position CP1 and the lower opening retaining lock that releasably retains the second lower striking pin 32b in the first open position OP1 can be separately mounted on the lower roller unit 22.

[0085] According to an exemplary embodiment, the vehicle door 5 can be releasably held in the first closed position CP1 by the upper retaining lock 31 and the lower retaining lock 32, such that the vehicle door 5 can be held in the first closed position CP1 by the upper retaining lock 31 and the lower retaining lock 32. That is, the upper retaining lock 31 and the lower retaining lock 32 can be used as a closing retaining lock to hold the vehicle door 5 in the first closed position CP1.

[0086] refer to Figure 4 The lower roller unit 22 may have a lower rotation axis CX2, and the door 5 may rotate about the lower rotation axis CX2. When the lower roller unit 22 is securely held in the first closed position CP1 by the lower retaining lock 32 and the first lower striking pin 32a, the door 5 may rotate about the lower rotation axis CX2.

[0087] like Figure 4 As shown, the upper rotation axis CX1 and the lower rotation axis CX2 can be vertically aligned, and the door 5 can rotate around the vertically aligned upper rotation axis CX1 and lower rotation axis CX2.

[0088] refer to Figure 2 Selector 40 can be electrically connected to actuator 43, and actuator 43 can be configured to operate upper retaining lock 31 and lower retaining lock 32.

[0089] When the user selects selector 40, actuator 43 can selectively perform a holding operation in which upper holding lock 31 holds the first upper striker 31a and lower holding lock 32 holds the first lower striker 32a, and a release operation in which upper holding lock 31 releases the first upper striker 31a and lower holding lock 32 releases the first lower striker 32a.

[0090] When the user presses the first switch 41 of the selector 40 with the door 5 closed, the upper retaining lock 31 releases the first upper striking pin 31a through the release operation of the actuator 43, and at the same time, the lower retaining lock 32 releases the first lower striking pin 32a. Therefore, the user can slide the door 5 in the longitudinal direction of the vehicle body 1, so that the door 5 can be opened and closed in sliding mode.

[0091] When the user presses the second switch 42 of the selector 40 with the door 5 closed, the actuator 43 engages the upper retaining lock 31 to hold the first upper striking pin 31a, and simultaneously the lower retaining lock 32 to hold the first lower striking pin 32a. The upper roller unit 21 and the lower roller unit 22 are also securely held in the first closed position CP1. Therefore, the user can swing the door 5 towards the interior and exterior of the vehicle, allowing the door 5 to open and close in a swing mode.

[0092] According to exemplary embodiments, such as Figure 2 As shown, an actuator 43 can operate the upper retaining lock 31 and the lower retaining lock 32 simultaneously.

[0093] According to another exemplary embodiment, the actuator of the operably holding lock 31 and another actuator of the operably holding lock 32 can be separately connected to the selector 40.

[0094] refer to Figure 5 Each of the upper rail 11 and the lower rail 12 can be mounted on the vehicle body 1 by a mounting bracket 15, and the mounting bracket 15 can have a shape corresponding to the shape of the upper rail 11 and the lower rail 12. Each of the upper rail 11 and the lower rail 12 can have a first extension portion 51 extending in a straight line in the longitudinal direction of the vehicle, and a second extension portion 52 extending from the first extension portion 51 toward the interior space of the vehicle. The second extension portion 52 can be bent at a predetermined angle relative to the first extension portion 51.

[0095] refer to Figure 7 and Figure 8 Each of the upper roller unit 21 and the lower roller unit 22 may include a roller bracket 64 having rollers 65 and 66 that roll along tracks 11 and 12, and a body 60 connecting the roller bracket 64 and the door 5.

[0096] The roller bracket 64 can rotatably support rollers 65 and 66, and rollers 65 and 66 can roll along the upper rail 11 and the lower rail 12. Figure 8 As shown, the intermediate roller 65 and two side rollers 66 disposed on both sides of the intermediate roller 65 can be rotatably mounted on the roller bracket 64. The rotation axis of the intermediate roller 65 can be perpendicular to the rotation axis of the side rollers 66.

[0097] The main body 60 can be bent so as not to interfere with the first extension 51 and the second extension 52. The main body 60 may have a first end 61 facing the interior of the vehicle and a second end 62 facing the exterior of the vehicle. The first end 61 of the main body 60 may be fixed to a roller bracket 64 by welding, using fasteners, etc., and the second end 62 of the main body 60 may be pivotally connected to the door 5 by a pivot pin 63. The door 5 may swing about the pivot pin 63 adjacent to the second end 62 of the main body 60.

[0098] refer to Figure 7 and Figure 8 The roller bracket 64 can be directly connected to the first end 61 of the body 60 by welding, fasteners, etc., and the second end 62 of the body 60 can be pivotally connected to the door 5 by a pivot pin 63. The first pivot bracket 68 can be fixed to the door 5 by welding, fasteners, etc., and the second pivot bracket 69 can be fixed to the second end 62 of the body 60 by welding, fasteners, etc. The first pivot bracket 68 may have a lug 68a, and the second pivot bracket 69 may have a recess 69a. The lug 68a of the first pivot bracket 68 can be inserted into the recess 69a of the second pivot bracket 69, and the pivot pin 63 can pass through the lug 68a of the first pivot bracket 68 and the second pivot bracket 69. The upper rotation axis CX1 and the lower rotation axis CX2 can be defined by the pivot pin 63. For example, the upper rotation axis CX1 and the lower rotation axis CX2 can be virtual axes extending vertically along the center point of the pivot pin 63, and the upper rotation axis CX1 and the lower rotation axis CX2 can be vertically aligned, allowing the door 5 to swing about the vertical rotation axis that actually connects the upper rotation axis CX1 and the lower rotation axis CX2. The upper retaining lock 31 can be fixed to the body 60 of the upper roller unit 21, and the lower retaining lock 32 can be fixed to the body 60 of the lower roller unit 22.

[0099] When the upper retaining lock 31 securely holds the body 60 of the upper roller unit 21 in the first closed position CP1 and the lower retaining lock 32 securely holds the body 60 of the lower roller unit 22 in the first closed position CP1, the door 5 can swing about the upper rotation axis CX1 of the upper roller unit 21 and the lower rotation axis CX2 of the lower roller unit 22. The door 5 can move between the second closed position CP2 where the door 5 is fully closed and the second open position OP2 where the door 5 is fully open.

[0100] According to specific exemplary embodiments, such as Figures 9 to 29 As shown, the upper retaining lock 31 can selectively retain the first upper striking pin 31a and the second upper striking pin 31b, and the lower retaining lock 32 can selectively retain the first lower striking pin 32a and the second lower striking pin 32b.

[0101] refer to Figure 9 and Figure 10 Each of the upper retaining lock 31 and the lower retaining lock 32 may include a first latch 101 releasably engaged with the first upper striker 31a and the first lower striker 32a, a first claw 102 operatively connected to the first latch 101, a first release lever 103 operatively connected to the first claw 102, a first pull rod 104 operatively connected to the first release lever 103, a second latch 201 releasably engaged with the second upper striker 31b and the second lower striker 32b, a second claw 202 operatively connected to the second latch 201, a second release lever 203 operatively connected to the second claw 202, and a second pull rod 204 operatively connected to the second release lever 203.

[0102] The first upper impact pin 31a and the first lower impact pin 32a can be aligned with or adjacent to the first closed position CP1, and the second upper impact pin 31b and the second lower impact pin 32b can be aligned with or adjacent to the first open position OP1. Therefore, the first upper impact pin 31a can face the second upper impact pin 31b in the longitudinal direction of the vehicle, and the first lower impact pin 32a can face the second lower impact pin 32b in the longitudinal direction of the vehicle.

[0103] refer to Figures 11 to 14 The first latch 101 and the second latch 201 may be spaced apart from each other in the vertical direction, and the first latch 101 and the second latch 201 may partially overlap each other. Specifically, the first latch 101 may be located below the second latch 201. (See reference) Figure 15 The first latch 101 and the second latch 201 can be integrally connected via the connecting portion 150, allowing the first latch 101 and the second latch 201 to form a single, one-piece structure. The hinge hole 111 can extend through the first latch 101, the connecting portion 150, and the second latch 201. Specifically, when the first hinge shaft 131 extends through the hinge hole 111, the first hinge shaft 131 can pass through the first latch 101, the connecting portion 150, and the second latch 201. The first latch 101 and the second latch 201 can be pivotally mounted on the mounting plate 120 via the first hinge shaft 131, allowing the first latch 101 and the second latch 201 to pivot together.

[0104] The first latch 101 may have a first main slot 113 for receiving a first upper striking pin 31a and a first lower striking pin 32a, and the first latch 101 may have a first locking shoulder 115. The second latch 201 may have a second main slot 213 for receiving a second upper striking pin 31b and a second lower striking pin 32b, and the second latch 201 may have a second locking shoulder 215. The first latch 101 may have a first sub-slot 114 aligned with the second main slot 213 of the second latch 201, and the second latch 201 may have a second sub-slot 214 aligned with the first main slot 113 of the first latch 101.

[0105] The first latch 101 can engage or release the first upper striking pin 31a and the first lower striking pin 32a. The first latch 101 can be in a first engaged position (see...) Figure 23 ) and the first release position (see Figure 21 The first engagement position refers to the position where the two parts move together. Figure 23 The first closed position CP1 shown is the position where the first latch 101 engages with the first upper striking pin 31a and the first lower striking pin 32a. The first released position refers to... Figure 21 The first latch 101 shown is in the position where the first upper striking pin 31a and the first lower striking pin 32a are released. When the first latch 101 is in the position shown... Figure 23 In the first engagement position shown, the first latch 101 can engage with the first upper striker 31a and the first lower striker 32a, so that the upper roller unit 21 and the lower roller unit 22 of the door 5 can be held in the first closed position CP1. When the first latch 101 is in the position shown... Figure 21 In the first release position shown, the first latch 101 can release the first upper striker 31a and the first lower striker 32a, so that the first upper striker 31a can be released from or received in the first main slot 113 of the first latch 101 of the upper retaining lock 31, and the first lower striker 32a can be released from or received in the first main slot 113 of the first latch 101 of the lower retaining lock 32.

[0106] The second latch 201 can engage or release the second upper striking pin 31b and the second lower striking pin 32b. The second latch 201 can be in the second engaged position (see...). Figure 26 ) and second release position (see Figure 24 The second engagement position refers to the position between ( ). Figure 26 The first open position OP1 shown is the position where the second latch 201 engages with the second upper striker 31b and the second lower striker 32b. The second release position refers to... Figure 24The second latch 201 is shown in the position where the second upper striking pin 31b and the second lower striking pin 32b are released. Second release position (see...) Figure 24 ) can be used with the first release position (see Figure 21 Basically the same. When the second latch 201 is in the position as Figure 26 In the second engagement position shown, the second latch 201 can engage with the second upper striker 31b and the second lower striker 32b, allowing the upper roller unit 21 and the lower roller unit 22 of the door 5 to remain in the first open position OP1. When the second latch 201 is in the position shown... Figure 24 In the second release position shown, the second latch 201 can release the second upper striker 31b and the second lower striker 32b, such that the second upper striker 31b can be released from or received in the second main slot 213 of the second latch 201 of the upper retaining lock 31, and the second lower striker 32b can be released from or received in the second main slot 213 of the second latch 201 of the lower retaining lock 32.

[0107] The first latch 101 and the second latch 201 can be biased to a first release position and a second release position, respectively, by a first biasing element 301, such as a torsion spring. The first biasing element 301 can be arranged around the first hinge axis 131.

[0108] The first latch 102 and the second latch 202 can be pivotally mounted on the mounting plate 120 via the second hinge pin 132. The first latch 102 can be positioned above the second latch 202. The first latch 102 can be aligned with the second latch 201, and the second latch 202 can be aligned with the first latch 101. (Reference) Figure 16 The first pawl 102 may have a hinge hole 102a into which the second hinge shaft 132 is inserted, and a first locking protrusion 112 that is releasably locked to the second latch 201 on the second locking shoulder 215. (See reference) Figure 17 The second pawl 202 may have a hinge hole 202a into which the second hinge shaft 132 is inserted, and a second locking protrusion 212 that is releasably locked to the first locking shoulder 115 of the first latch 101.

[0109] The first chuck 102 can be in the first chuck locking position (see...) Figure 23 ) and the release position of the first chuck (see Figure 21 Move between ( ). For example, Figure 23 As shown, the first pawl locking position refers to the position where the first locking protrusion 112 of the first pawl 102 is locked to the second locking shoulder 215 of the second latch 201. Figure 21As shown, the first pawl release position refers to the position where the first locking protrusion 112 of the first pawl 102 releases from the second locking shoulder 215 of the second latch 201. For example... Figure 23 As shown, when the first pawl 102 is in the first pawl locked position, the first locking protrusion 112 of the first pawl 102 can lock onto the second locking shoulder 215 of the second latch 201, so that the movement (rotation) of the first latch 101 and the second latch 201, which form an integral one-piece structure, can be restricted by the first pawl 102, and therefore the first latch 101 can be held in the first engaged position. Figure 21 As shown, when the first pawl 102 is in the first pawl release position, the movement (rotation) of the first latch 101 and the second latch 201 is not restricted by the first pawl 102. Therefore, the first latch 101 can move from the first engagement position to the first release position. The first pawl 102 can be aligned with the second latch 201 at the same height. When the first locking protrusion 112 of the first pawl 102 is locked to the second locking shoulder 215 of the second latch 201, the first latch 101 can avoid interfering with the first pawl 102.

[0110] The second chuck 202 can be in the second chuck locking position (see...) Figure 26 ) and the second claw release position (see Figure 24 Move between ( ). For example, Figure 26 As shown, the second pawl locking position refers to the position where the second locking protrusion 212 of the second pawl 202 is locked to the first locking shoulder 115 of the first latch 101. For example... Figure 24 As shown, the second pawl release position refers to the position where the second locking protrusion 212 of the second pawl 202 is released from the first locking shoulder 115 of the first latch 101. Figure 26 As shown, when the second pawl 202 is in the second pawl locked position, the second locking protrusion 212 of the second pawl 202 can lock onto the first locking shoulder 115 of the first latch 101, so that the movement (rotation) of the first latch 101 and the second latch 201, which form an integral one-piece structure, can be restricted by the second pawl 202, and therefore the second latch 201 can be held in the second engagement position. Figure 24 As shown, when the second latch 202 is in the second latch release position, the movement (rotation) of the first latch 101 and the second latch 201 is not restricted by the second latch 202. Therefore, the second latch 201 can move from the second engagement position to the second release position. The second latch 202 can be aligned with the first latch 101 at the same height. When the second locking protrusion 212 of the second latch 202 is locked to the first locking shoulder 115 of the first latch 101, the second latch 201 can avoid interfering with the second latch 202.

[0111] The first jaw 102 and the second jaw 202 can be respectively biased to the first jaw locking position by a second biasing element 302 such as a torsion spring (see...). Figure 23 ) and the second claw locking position (see Figure 26 The second biasing element 302 may be disposed around the second hinge axis 132, and the second biasing element 302 may have a first elastic leg 302a supported on the first jaw 102 and a second elastic leg 302b supported on the second jaw 202.

[0112] The first release lever 103 and the second release lever 203 can be pivotally mounted on the mounting plate 120 via the second hinge shaft 132. That is, the first pawl 102, the second pawl 202, the first release lever 103, and the second release lever 203 can be pivotally mounted on the mounting plate 120 via the second hinge shaft 132. (Reference) Figure 18 The first release lever 103 may have a hinge hole 103a into which the second hinge shaft 132 is inserted and a pivot hole 103c to which the first pull rod 104 is pivotally hinged. (See reference) Figure 16 The first pawl 102 may have a bead 102b extending toward the first release lever 103. (See reference) Figure 18 The first release lever 103 may have a slot 103b into which a bead-like member 102b of the first pawl 102 is inserted. Therefore, the first release lever 103 can pivot together with the first pawl 102 in the same direction. (See reference) Figure 19 The second release lever 203 may have a hinge hole 203a into which the second hinge shaft 132 is inserted and a pivot hole 203c to which the second pull rod 204 is pivotally hinged. (See reference) Figure 17 The second pawl 202 may have a bead-like element 202b extending toward the second release lever 203. (See reference) Figure 19 The second release lever 203 may have a slot 203b into which a bead-like member 202b of the second pawl 202 is inserted. Therefore, the second release lever 203 can pivot together with the second pawl 202 in the same direction.

[0113] A first pull rod 104 is pivotally connected to a first release rod 103, and a second pull rod 204 is pivotally connected to a second release rod 203. The first pull rod 104 and the second pull rod 204 are connected to a cable 75, which is connected to an actuator 43 or an outer handle 6. When the cable 75 is pulled by the actuator 43 or the outer handle 6, the first latch 101 of the upper retaining lock 31 and the first latch 101 of the lower retaining lock 32 release the first upper striker 31a and the first lower striker 32a, and the second latch 201 of the upper retaining lock 31 and the second latch 201 of the lower retaining lock 32 release the second upper striker 31b and the second lower striker 32b.

[0114] refer to Figure 20 The mounting plate 120 may have a first through hole 121 for mounting a first hinge shaft 131 and a second through hole 122 for mounting a second hinge shaft 132.

[0115] When door 5 is closed in sliding mode (i.e., door 5 moves to the first closed position CP1), such as Figure 21 As shown, the main body 60 of roller units 21 and 22 can move toward the first upper striking pin 31a and the first lower striking pin 32a, and the first main slot 113 of the first latch 101 and the second sub-slot 214 of the second latch 201 can open toward the first upper striking pin 31a and the first lower striking pin 32a. The first latch 101 can be in the first released position, and the first pawl 102 can be in the first pawl released position.

[0116] When door 5 approaches the first closed position CP1, such as Figure 22 As shown, the main body 60 of roller units 21 and 22 can move closer to the first upper striking pin 31a and the first lower striking pin 32a, so that the first upper striking pin 31a and the first lower striking pin 32a can begin to receive in the first main slot 113 of the first latch 101 and the second sub-slot 214 of the second latch 201, and the first latch 101 and the second latch 201 can pivot counterclockwise about the first hinge axis 131 (see...). Figure 22 Arrow R1).

[0117] Then, when door 5 is fully moved to the first closed position CP1, as follows Figure 23 As shown, the first latch 101 and the second latch 201 can rotate completely around the first hinge axis 131, and the first pawl 102 can be biased to the first pawl locking position by the second biasing element 302. Therefore, the first locking protrusion 112 of the first pawl 102 can be locked to the second locking shoulder 215 of the second latch 201. When the first latch 101 is fully engaged with the first upper striker 31a and the first lower striker 32a by the biasing force of the second biasing element 302, the roller units 21 and 22 of the door 5 can be held in the first closed position CP1.

[0118] With the roller units 21 and 22 of the door 5 in the first closed position CP1, the user can open and close the door 5 in swing mode. After closing the door 5 in swing mode, the user can select the first switch 41 of the selector 40 to open and close the door 5 in sliding mode. When the cable 75 is pulled by the release operation of the actuator 43, the first lever 104 and the second lever 204 can move away from the first latch 101 and the second latch 201, and thus the first pawl 102 can move to the first pawl release position, and the second pawl 202 can move to the second pawl release position. The first latch 101 and the second latch 201 can be moved to the first release position and the second release position by the biasing force of the first biasing element 301, and the first latch 101 can release the first upper striker 31a and the first lower striker 32a.

[0119] When door 5 is opened in sliding mode (i.e., door 5 moves to the first open position OP1), such as Figure 24 As shown, the main body 60 of roller units 21 and 22 can move toward the second upper striker 31b and the second lower striker 32b, and the second main slot 213 of the second latch 201 and the first sub-slot 114 of the first latch 101 can open toward the second upper striker 31b and the second lower striker 32b. The second latch 201 can be in the second release position, and the second claw 202 can be in the second claw release position.

[0120] like Figure 25 As shown, when the main body 60 of roller units 21 and 22 moves closer to the second upper striking pin 31b and the second lower striking pin 32b, the second upper striking pin 31b and the second lower striking pin 32b can begin to receive in the second main slot 213 of the second latch 201 and the first sub-slot 114 of the first latch 101, and the second latch 201 and the first latch 101 can pivot clockwise about the first hinge axis 131 (see...). Figure 25 Arrow R3).

[0121] Then, when door 5 is fully moved to the first open position OP1, as... Figure 26 As shown, the second latch 201 and the first latch 101 can rotate completely around the first hinge axis 131, and the second latch 202 can be biased to the second latch locking position by the second biasing element 302. Therefore, the second locking protrusion 212 of the second latch 202 can be locked to the first locking shoulder 115 of the first latch 101. When the second latch 201 is fully engaged with the second upper striker 31b and the second lower striker 32b by the biasing force of the second biasing element 302, the roller units 21 and 22 of the door 5 can be held in the first open position OP1.

[0122] In order for the door 5 to be fully opened in sliding mode and for the roller units 21 and 22 of the door 5 to remain in the first open position OP1, the second latch 201 releases the second upper striker 31b and the second lower striker 32b. When the user pulls the outer handle 6, the cable 75 can be pulled by the release operation of the actuator 43. The first pull rod 104 can move away from the first latch 101 in the pulling direction P1 of the cable 75 (see...). Figure 27 Arrow P2), and the second lever 204 can move away from the second latch 201 in the pulling direction P1 of the cable 75 (see arrow P2). Figure 27 (See arrow P3). The first release lever 103 can pivot clockwise in the direction of movement of the first pull lever 104 (see arrow P2). Figure 27 (See arrow R6), and the second release lever 203 can pivot counterclockwise in the direction of movement of the second pull rod 204 (see arrow P3) (see arrow R6). Figure 27 (Arrow R7).

[0123] refer to Figure 28 The first pawl 102 can pivot clockwise in the same manner as the first release lever 103 (see...). Figure 28 (arrow R8), and the second pawl 202 can pivot counterclockwise in the same manner as the second release lever 203 (see arrow R8). Figure 28 (Arrow R9). Reference Figure 29 When the second bias element 302 is compressed, the first jaw 102 can move to the first jaw release position, and the second jaw 202 can move to the second jaw release position. The first latch 101 and the second latch 201 can be moved to the first release position and the second release position by the first bias element 301 (see...). Figure 29 (Arrow R10).

[0124] refer to Figure 30 The main latch 80 can be mounted on the rear end of the door 5, and the main striker 81 can be fixed to the body 1. The main latch 80 can be releasably engaged with the main striker 81. When the door 5 is in the first closed position CP1 or the second closed position CP2, the main latch 80 can be engaged with the main striker 81 by engaging the outer handle 6, so that the door 5 can be locked in the first closed position CP1 or the second closed position CP2. When the door 5 is in the first closed position CP1 or the second closed position CP2, the main latch 80 can release the main striker 81 by releasing the outer handle 6, so that the door 5 can move in a sliding mode or a swing mode. When the door 5 is held in the first closed position CP1 and the main latch 80 releases the main striker 81, the center roller unit 23 can be released from the center rail 13, and therefore the door 5 can be opened and closed in a swing mode.

[0125] According to an exemplary embodiment of this disclosure, the door opening and closing device may further include a central rail 13 installed at the center portion of the vehicle body 1, and a central roller unit 23 guided along the central rail 13.

[0126] refer to Figure 1 and Figure 3 The central track 13 can extend from the rear edge of the door opening 3 along the longitudinal direction of the vehicle. The central roller unit 23 can be pivotally mounted on the central portion of the door 5. In particular, the central roller unit 23 can be mounted adjacent to the rear end of the door 5. The central roller unit 23 can be guided along the central track 13.

[0127] refer to Figure 31 The center track 13 may include a sliding guide 91 extending in a straight line in the longitudinal direction of the vehicle and a swing guide 92 extending from the sliding guide 91 toward the inside of the vehicle. The swing guide 92 may be bent relative to the sliding guide 91 at a predetermined angle by a bending portion 93, and the bending portion 93 may be bent by a predetermined radius.

[0128] refer to Figures 32 to 34 The central roller unit 23 may include a roller bracket 108 and rollers 105 and 106 rotatably mounted on the roller bracket 108. The roller bracket 108 may be pivotally mounted on the central portion of the door 5. Rollers 105 and 106 may roll along the central track 13. Figure 34 As shown, the intermediate roller 105 and two side rollers 106 disposed on both sides of the intermediate roller 105 can be rotatably mounted on the roller bracket 108. The rotation axis of the intermediate roller 105 can be perpendicular to the rotation axis of the side rollers 106. The rollers 105 and 106 of the center roller unit 23 can be located on the upper part of the center track 13.

[0129] When the door 5 slides in the longitudinal direction of the vehicle in the selected sliding mode, the sliding guide 91 can guide the rollers 105 and 106 of the center roller unit 23.

[0130] refer to Figure 31 and Figure 33The sliding guide 91 may include a stop wall 95 to prevent the rollers 105 and 106 of the center roller unit 23 from separating from the sliding guide 91. The sliding guide 91 may have an opening to the outside of the vehicle, and the stop wall 95 may be located above the opening of the sliding guide 91. Specifically, the stop wall 95 may be positioned facing the rollers 105 and 106 of the center roller unit 23, such that the stop wall 95 can guide the movement of the rollers 105 and 106. The stop wall 95 may extend along the length of the sliding guide 91 and the length of the curved portion 93. The stop wall 95 may extend vertically downward from the upper end of the sliding guide 91. Since the stop wall 95 closes the upper part of the sliding guide 91 and the upper part of the curved portion 93, it can prevent the center roller unit 23 from moving away from the sliding guide 91 toward the outside of the vehicle, such as... Figure 23 As shown.

[0131] When the door 5 is opened and closed in swing mode, the swing guide 92 can guide the rollers 105 and 106 of the center roller unit 23 to be released from the center track 13 because the swing mode is selected.

[0132] The outer side of the swing guide 92 can be fully opened towards the external space of the vehicle. A guide protrusion 94 extends upward from the bottom of the swing guide 92 and can extend along the length of the swing guide 92. When the door 5 swings along the swing trajectory T1 from the second closed position CP2 to the second open position OP2, it can guide the intermediate roller 105 of the center roller unit 23 along the guide protrusion 94, such as... Figure 32 As shown.

[0133] The front end 95a of the stop wall 95 of the sliding guide 91 and the rear end 94a of the guide protrusion 94 can be positioned so as not to interfere with the swing trajectory T1 of the door 5. Additionally, as... Figure 35 As shown, the axis X1 of the sliding guide 91 and the axis X2 of the swing guide 92 can intersect at a predetermined angle α. In particular, the angle α between the axis X1 of the sliding guide 91 and the axis X2 of the swing guide 92 can be an obtuse angle, so that the rollers 105 and 106 of the central roller unit 23 can be easily released from the swing guide 92 of the central track 13 or can be easily received in the swing guide 92 of the central track 13.

[0134] The central track 13 may include a space 98 that allows the rollers 105 and 106 of the intermediate roller unit 23 to be released from or received within the central track 13 when the door 5 is swinging in swing mode. The space 98 may be defined between the front end 95a of the stop wall 95 and the rear end 94a of the guide protrusion 94 when the front end 95a of the stop wall 95 and the rear end 94a of the guide protrusion 94 are spaced apart from each other. Due to the space 98, there is no interference when the rollers 105 and 106 of the central roller unit 23 are released from or received within the central track 13 in swing mode.

[0135] Figures 1 to 35 A door opening and closing device according to an exemplary embodiment of the present disclosure is shown applied to a rear door 5. However, in addition to the rear door, the door opening and closing device according to an exemplary embodiment of the present disclosure can also be applied to various doors, such as front doors.

[0136] Figure 36 and Figure 37 A door opening and closing device according to an exemplary embodiment of the present disclosure is shown applied to the front door 4. Figure 36 The image shows the front door 4 in sliding mode with open, and Figure 37 The image shows the front door 4 in swing mode with open.

[0137] Figure 38 and Figure 39 A door opening and closing device according to an exemplary embodiment of the present disclosure is shown, applied to the front door 4 and the rear door 5. Figure 38 The image shows the front door 4 and rear door 5 in sliding mode with the doors open. Figure 39 The front door 4 and rear door 5 are shown in the open state in swing mode.

[0138] As described above, the door opening and closing device according to the exemplary embodiments of this disclosure can perform door opening and closing operations by selectively switching between a sliding mode and a swing mode, thereby meeting customer needs such as convenience and versatility. Furthermore, it can improve convenience and quality by selecting the door opening and closing operation based on the customer's situation and environment.

[0139] In particular, when the car door is opened and closed in sliding mode, a holding lock can releasably hold the car door in the open position and releasably hold the car door in the closed position, thereby simplifying the door holding mechanism, reducing the number of parts and assembly workload, improving the operating quality of the car door, and reducing cost and weight.

[0140] In terms of vehicle specifications, regardless of the vehicle model, the door opening and closing structure can be standardized. Therefore, manufacturing and investment costs can be significantly reduced.

[0141] This application claims the benefit of Korean Patent Application No. 10-2020-0121748, filed on September 21, 2020, with the Korean Intellectual Property Office, which is incorporated herein by reference.

[0142] In the foregoing, although the present disclosure has been described with reference to exemplary embodiments and accompanying drawings, the present disclosure is not limited thereto, but can be modified and altered by those skilled in the art without departing from the spirit and scope of the present disclosure as claimed in the appended claims.

Claims

1. A door opening and closing device, wherein, The door opening and closing device includes: Car door; The rails are installed on the vehicle body; A roller unit, mounted on the door, is configured to allow the door to open and close in a sliding mode and a swing mode. In the sliding mode, the door is configured to slide along the track, and in the swing mode, the door is configured to swing at a predetermined position on the track. The lock holds the door in the open position or in the closed position when the door is opened and closed in the sliding mode, respectively. The retaining lock includes a first latch and a second latch. The first latch is configured to releasably engage with a first striking pin, which is mounted on the vehicle body and positioned corresponding to the closed position. The second latch is configured to releasably engage with a second striking pin, which is mounted on the vehicle body and positioned corresponding to the open position. The first and second latches partially overlap each other; The first and second buckles form a single, integrated structure; and The first and second latches are configured to pivot via a first hinge axis.

2. The device according to claim 1, wherein: The first latch includes a first main slot configured to receive the first firing pin; and The second latch includes a second main slot configured to receive the second striker.

3. The device according to claim 1, wherein: The first latch is configured to move between a first engaged position and a first released position; The first latch engages with the first striker at the first engagement position; The first firing pin is released from the first latch at the first release position; The second latch is configured to move between a second engaged position and a second released position; The second latch engages with the second firing pin at the second engagement position; and The second latch is released from the second firing pin in the second release position.

4. The device according to claim 3, wherein, The first latch and the second latch are configured to be biased to the first release position and the second release position by a first biasing element.

5. The device according to claim 1, wherein: The first buckle and the second buckle are connected by a connecting part; and The first buckle is spaced apart from the second buckle.

6. A door opening and closing device, wherein, The door opening and closing device includes: Car door; The rails are installed on the vehicle body; A roller unit, mounted on the door, is configured to allow the door to open and close in a sliding mode and a swing mode. In the sliding mode, the door is configured to slide along the track, and in the swing mode, the door is configured to swing at a predetermined position on the track. A retaining lock, which releasably holds the vehicle door in the open position or the vehicle door in the closed position when the door is opened and closed in the sliding mode, respectively, wherein the retaining lock includes: A first latch is configured to releasably engage with a first striking pin, the first striking pin being configured to be mounted on the vehicle body and positioned corresponding to the closed position; The second latch is configured to releasably engage with the second striker, which is configured to be mounted on the vehicle body and positioned corresponding to the open position. The first jaw is operatively connected to the first latch; and The second jaw is operatively connected to the second latch.

7. The device according to claim 6, wherein, The first jaw and the second jaw pivot via the second hinge axis.

8. The device according to claim 6, wherein: The first buckle and the second buckle form a single, one-piece structure. The first claw aligns with the second latch; The second claw aligns with the first latch; The first latch has a first locking shoulder configured to releasably engage with the second claw; and The second latch has a second locking shoulder configured to releasably engage with the first latch.

9. The device according to claim 8, wherein: The first jaw is configured to move between a first jaw locked position and a first jaw released position; The first chuck is locked to the second locking shoulder in the first chuck locking position; The first chuck is released from the second locking shoulder at the first chuck release position; The second jaw is configured to move between a second jaw locking position and a second jaw release position; The second chuck is locked to the first locking shoulder in the second chuck locking position; and The second chuck is released from the first locking shoulder in the second chuck release position.

10. The device according to claim 9, wherein, The first jaw and the second jaw are configured to be biased to the first jaw locking position and the second jaw locking position by a second biasing element.

11. The device according to claim 6, wherein: The retaining lock further includes a first release lever operatively connected to the first jaw and a second release lever operatively connected to the second jaw; and The first jaw, the second jaw, the first release lever, and the second release lever are configured to pivot via a second hinge axis.

12. The device according to claim 6, wherein: The retaining lock further includes a first release lever configured to pivot together with the first jaw, and a second release lever configured to pivot together with the second jaw; The first release lever and the second release lever are connected to the cable; When the cable is pulled, the first release lever is configured to allow the first latch to release the first striker; and When the cable is pulled, the second release lever is configured to allow the second latch to release the second striker.

13. The device according to claim 6, wherein: The retaining lock further includes a first lever operatively connected to the first jaw and a second lever operatively connected to the second jaw; The first and second tie rods are connected to the cable; When the cable is pulled, the first lever is configured to allow the first latch to release the first striker; and When the cable is pulled, the second lever is configured to allow the second latch to release the second striker.

14. A vehicle, wherein, The vehicles include: Body; The door is connected to the vehicle body; The track is mounted on the vehicle body in the longitudinal direction of the vehicle body; A roller unit, mounted on the door, is configured to allow the door to open and close in a sliding mode and a swing mode. In the sliding mode, the door is configured to slide along the track, and in the swing mode, the door is configured to swing at a predetermined position on the track. The lock holds the door in the open position or in the closed position when the door is opened and closed in the sliding mode, respectively. The retaining lock includes a first latch and a second latch. The first latch is configured to releasably engage with a first striking pin, which is mounted on the vehicle body and positioned corresponding to the closed position. The second latch is configured to releasably engage with a second striking pin, which is mounted on the vehicle body and positioned corresponding to the open position. The first and second latches partially overlap each other; The first and second buckles form a single, integrated structure; and The first and second latches are configured to pivot via a first hinge axis.

15. The vehicle according to claim 14, wherein: The first latch includes a first main slot configured to receive the first firing pin; and The second latch includes a second main slot configured to receive the second striker.

16. The vehicle according to claim 14, wherein: The first latch is configured to move between a first engaged position and a first released position; The first latch engages with the first striker at the first engagement position; The first firing pin is released from the first latch at the first release position; The second latch is configured to move between a second engaged position and a second released position; The second latch engages with the second firing pin at the second engagement position; and The second latch is released from the second firing pin in the second release position.

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