Open locking device for a sliding door, and vehicle which has this device

Abstract

Open-hold locking device of a sliding door (10) configured to limit or release a rotation of a pivot arm (40) without interference with a rail (20), wherein the open-hold locking device comprises: a trap unit (100) comprising a trap bolt (110) which serves as a pivot point of the pivot arm (40), a trap (120) mounted on the trap bolt (110), and a latch release lever (130) rotatably mounted on the trap bolt (110); a latch unit (200) comprising a latch bolt (210) arranged on one side of the pivot arm (40) and a latch (220) rotatably mounted on the latch bolt (210) and configured to be lockable with or unlockable from the latch (120); and a cable pull unit (300) which is connected to the latch release lever (130) and is configured to rotate the latch release lever (130), wherein the latch release lever (130) is configured to rotate in one direction to rotate the latch (220), wherein the outer circumference of the latch bolt (110) has a flat section (115) and a curved section (117) and the trap (120) has an inner circumference of a shape that corresponds to the shapes of the flat section (115) and the curved section (117) in order to fit onto the trap bolt (110).

Description

[0001] The invention relates to an open locking device for a sliding door, and to a vehicle which has this device.

[0002] Generally, a vehicle has a passenger compartment of a predetermined size to accommodate a driver or a passenger, and a vehicle body is equipped with a passenger compartment opening door to open or close the passenger compartment.

[0003] A sliding passenger compartment door has a front sliding door installed in a forward position along the longitudinal axis of the vehicle and a rear sliding door installed in a rear position along the longitudinal axis of the vehicle. The front and rear sliding doors are typically installed to move along a track mounted to the vehicle body or door.

[0004] Recently, a B-pillarless door has been used, which expands the open space of the passenger compartment by removing a B-pillar to facilitate the transport of cargo or entering or exiting the vehicle in a small space.

[0005] Meanwhile, the vehicle equipped with the sliding door is fitted with an open locking device which maintains an open state of the sliding door to prevent the sliding door from closing unexpectedly when an occupant enters or leaves the vehicle, or when cargo is loaded into or unloaded from the vehicle.

[0006] A prior art holding-open locking device, as disclosed in KR 10 0 836 114 B1 entitled “Holding-open locking arrangement of a sliding door for a vehicle”, is configured such that a latch rotatably connected to a lower roller holder and a latch lever connected to a locking cable with the same axis of rotation as the latch are operated in conjunction with each other to cause a locking bar to be received or released by an actuating rotor, thereby realizing a locking structure.

[0007] Furthermore, another open-holding locking device of the prior art, as disclosed in KR 10 0 821 006 B1 entitled “Open-holding locking device of a sliding door for a vehicle”, is configured such that a bolt rotatably coupled to a sliding door, a claw lever engaged with the bolt, and a cable pull lever connected to the claw lever via a cable pull are operated in conjunction with each other, so that the bolt engages with a locking bar.

[0008] Furthermore, US 2008 / 0231074A1 discloses an open-holding locking device for a sliding door, comprising: a latch unit having a latch bolt serving as a pivot point of the swing arm, a latch mounted on the latch bolt, and a latch release lever; a latch unit having a latch bolt arranged on one side of the swing arm and a latch rotatably mounted on the latch bolt and configured to lock with or unlock from the latch; and a cable unit connected to the latch release lever and configured to rotate the latch release lever, the latch release lever being configured to rotate in one direction to rotate the latch.

[0009] Furthermore, another locking device for a sliding door that keeps the door open is known from DE 10 2019 118 542 A1.

[0010] However, conventional devices are problematic because the bolt is not fixed to the locking bar if the sliding door's path of movement deviates from the path of movement of the track, meaning the sliding door cannot be stably fixed in an open position. A simple, easy-to-install, open-hold locking device is needed for this purpose.

[0011] The invention provides an open-holding locking device for a sliding door with a structure that can stably support a sliding door in an open state, even if a difference occurs between a door movement path and a rail movement path, and that can limit the rotation of a pivot arm without interference between a rail and the pivot arm.

[0012] To solve the problem, the invention provides an open-holding locking device for a sliding door with the features of claim 1 and a vehicle with the features of claim 12. Further advantageous embodiments of the locking device and the vehicle are described in the respective dependent claims.

[0013] This means that an open locking device for a sliding door is configured to limit or release the rotation of a swing arm without interference from a rail, wherein the device comprises a latch unit (or catch unit) comprising a latch bolt (or catch bolt) serving as a pivot point of the swing arm, a latch (or catch hook) mounted on (or placed or fitted over) the latch bolt, and a latch release lever rotatably mounted on (or placed or fitted over) the latch bolt, and a latch unit comprising a latch bolt located on one side of the swing arm and a latch rotatably mounted on (or placed or fitted over) the latch bolt.(which is rotatably mounted or fitted over the latch bolt) so that it can be locked to or unlocked from the trap, and has a cable assembly connected to the latch release lever in such a way that it rotates the latch release lever. Here, the latch release lever, which rotates in one direction, rotates the latch. Furthermore, an outer circumference of the latch bolt has a flat section and a curved section, and the trap has an inner circumference of a shape that corresponds to the shapes of the flat section and the curved section in order to fit onto the latch bolt.

[0014] The invention is explained in more detail below with reference to the drawing. The drawing shows: Fig. 1 a view representing a state in which an open-holding locking device according to an embodiment of the invention is mounted on a vehicle; Fig. 2 an enlarged view of the open locking device Fig. 1; Fig. 3 a view representing a state in which a trap unit, a latch unit and a cable pull unit are coupled together according to an embodiment of the invention; Fig. 4 a view representing a state in which the trap unit, the latch unit and the cable pull unit are separated from each other according to an embodiment of the invention; Fig. 5 a view representing a state in which a sliding door of a vehicle equipped with an open locking device according to an embodiment of the invention is closed; Fig. 6 a cut along line AA' in Fig. 5th view from above; Fig. 7 a view showing a state in which a sliding door of a vehicle equipped with the open-holding locking device according to an embodiment of the invention is open; Fig. 8 a cut along line DD' in Fig. 7 viewed from above; Fig. 9 a view showing a change in the open locking device before and after pulling a cable in the state in which a sliding door is open; and Fig. 10 a view showing the changes of a latch and a trap Fig. 9 represents.

[0015] It is understood that the attached drawings are not necessarily to scale and represent a somewhat simplified depiction of various features that illustrate the basic principles of the invention. The specific design features of the present invention, which include, for example, specific dimensions, orientations, positions, and shapes as disclosed herein, are partly determined by the intended application and environment of use.

[0016] In the figures, the reference numerals refer to the same or equivalent parts of the present invention throughout the individual figures of the drawing.

[0017] Various embodiments of the present invention will now be discussed in detail, examples of which are illustrated in the accompanying drawings and described below. Although the invention is described in connection with exemplary embodiments, it is understood that the present description is not intended to limit the invention to these exemplary embodiments.

[0018] Various embodiments of the invention are discussed in detail below, examples of which are shown in the accompanying drawings and described below.

[0019] Fig. Figure 1 is a view depicting a state in which an open-holding locking device according to an embodiment of the invention is mounted on a vehicle, and Fig. Figure 2 is an enlarged view of the open locking device. Fig. 1.

[0020] According to one embodiment of the invention, a rail 20, which is mounted on a vehicle body B, is designed in a longitudinal direction of the vehicle body B (see Fig. 5 and Fig. 7) One end of a roller unit 30 is inserted into the rail 20 in such a way that it is coupled to it in a rolling manner. The roller unit 30 is guided by the rail 20 in such a way that it moves in the longitudinal direction of the vehicle.

[0021] As in Fig. As shown in Figure 1, the other end of the roller unit 30 is rotatably connected to a swivel arm 40, and the swivel arm 40 is rotatably connected to a mounting bracket 50, which is fixedly mounted on the inside of the sliding door 10 (hereinafter referred to as the door). Therefore, when the door 10 moves, the swivel arm 40 can rotate about the roller unit 30 and move in a straight line along the track 20.

[0022] The door 10 is composed of a front door and a rear door. The open-hold locking device of the opposing-type sliding door according to the embodiment of the invention is used on the front door and / or the rear door. Therefore, the open-hold locking devices of the sliding door used on the front door and the rear door have the same configuration and the same operating principle. However, for the sake of simplicity, an example is given herein in which the open-hold locking device of the sliding door is used on each of the doors 10.

[0023] Furthermore, according to one embodiment of the invention, the open-holding locking device of the sliding door is used on rail 20, which is mounted on a lower section of the vehicle body B. However, the device can also be used on another rail (not shown) mounted on the vehicle.

[0024] The locking device for holding the sliding door open, according to one embodiment of the invention, is connected to a remote control unit 60 via a cable C. Therefore, a tensile force F can be exerted on or released from the cable C under the control of the remote control unit 60.

[0025] The open-holding locking device of the sliding door according to one embodiment of the invention is mounted on the pivot arm 40 in a position opposite to an end of the pivot arm 40 connected to the roller unit 30. Therefore, the open-holding locking device of the sliding door according to one embodiment of the invention does not interfere with the rail 20.

[0026] With reference to Fig. 2 The open-holding locking device of the sliding door according to an embodiment of the invention comprises a latch unit 100, a latch unit 200 and a cable pull unit 300.

[0027] Fig. Figure 3 is a view representing a state in which the trap unit, the latch unit and the cable pull unit are coupled together according to an embodiment of the invention, and Fig. Figure 4 is a view showing a state in which the trap unit, the latch unit and the cable pull unit are separated from each other according to an embodiment of the invention.

[0028] With regard to the Fig. 3 and Fig. 4 The trap unit 100 has a trap bolt 110, a trap 120 and a latch release lever 130.

[0029] The latch bolt 110 has an essentially cylindrical shape and is connected to both ends of the mounting bracket 50. The swivel arm 40 is rotatably connected to the latch bolt 110 between both ends of the mounting bracket 50. The latch bolt 110 does not rotate and serves as a pivot point for the swivel arm 40.

[0030] More specifically, a first flat section 111 and a first curved section 113 are formed on the outer circumference of one end of the latch bolt 110. An inner circumference of one end of the mounting bracket 50, into which the latch bolt 110 is inserted, has a shape that corresponds to the shapes of the first flat section 111 and the first curved section 113. Since the first flat section 111 limits the rotation of the latch bolt 110, the latch bolt 110 does not rotate after it is inserted into the mounting bracket 50. Furthermore, because an inner circumference of one end of the pivot arm 40, into which the latch bolt 110 is inserted, has a circular shape, the pivot arm 40 can rotate about the latch bolt 110.

[0031] Meanwhile, the latch bolt 110 has a second flat section 115 and a second curved section 117. Since such a configuration relates to the rotation of the latch 120 and the latch release lever 130, it will be described later.

[0032] A step 118 is provided on one side of the second flat section 115 and the second curved section 117 such that it projects radially from the latch bolt 110.

[0033] The trap 120 is mounted on the trap bolt 110 through a trap insertion opening 121 and is moved. The movement of the trap 120 is stopped by the step 118. The trap insertion opening 121 has a shape that corresponds to the shapes of the second flat section 115 and the second curved section 117. Since the second flat section 115 limits the rotation of the trap 120, the trap 120 is not rotated after it is mounted on the trap bolt 110.

[0034] The trap 120 has a movement path section 122 which has a substantially curved shape and a locking path section 123 which extends from the movement path section 122.

[0035] The motion path section 122 forms a path along which a latch 220, described below, can move without interference with the catch 120. Since the latch 220 rotates as the pivot arm 40 rotates, the motion path section 122 has a curved shape according to one embodiment of the invention. However, the motion path section 122 can have various shapes, without being limited to them.

[0036] The locking path section 123 is shaped such that it is bent from the movement path section 122 and extends to an inner side of the latch 120, forming a locking path along which the latch 220 can be locked. In one embodiment of the invention, the locking path section 123 has a substantially straight shape, but can have any shape as long as the latch 220 can be locked.

[0037] A guide pin insertion opening 124 is designed in a position of the trap 120 such that one end of a guide pin 126 is inserted therein.

[0038] The latch release lever 130 is rotatably mounted on the latch bolt 110 through a latch release lever insertion opening 131. Since the latch release lever insertion opening 131 is circular, the latch release lever 130 can be rotatably mounted on the latch bolt 110.

[0039] The latch release lever 130 has a seat section 132 that projects radially from the latch release lever insertion opening 131, and a release section 133 that extends from the seat section 132. The release section 133 is shaped such that it projects further radially from the latch release lever insertion opening 131 than the seat section 132. In one embodiment of the invention, a connecting section between the seat section 132 and the release section 133 has an inclined surface that is inclined at a predetermined angle. Naturally, the connecting section between the seat section 132 and the release section 133 can have various shapes, such as a curved surface.

[0040] A spring-loaded locking section 134 is formed on one side of the latch release lever 130. The spring-loaded locking section 134 can have any shape, as long as a latch spring 160 can be locked.

[0041] A first bolt insertion opening 135 is designed in the other side of the latch release lever 130 such that it is rotatably connected to a connecting lever 140, which is described below.

[0042] A second bolt insertion opening 145 is formed in one side of the connecting lever 140 such that it is rotatably connected to the pawl release lever 130, while a connecting element insertion opening 141 is formed in the other side such that it is connected to the cable pull unit 300. The connecting lever 140 and the pawl release lever 130 are rotatably connected to each other by inserting a pawl release lever bolt 144 into the first bolt insertion opening 135 and the second bolt insertion opening 145. A cable pull connecting element 310 is inserted into the connecting element insertion opening 141, and the cable C is connected to the cable pull connecting element 310.

[0043] A guide opening 146, which has the form of an elongated hole, is formed in the connecting lever 140. The other end of the guide pin 126 is inserted into the guide opening 146. As described above, since one end of the guide pin 126 is connected to the latch 120 and the other end of the guide pin 126 is connected to the connecting lever 140, the connecting lever 140 is movable while being guided by the guide pin 126, which is inserted into the guide opening 146.

[0044] Meanwhile, according to one embodiment of the invention, the trap unit 100 has a trap disc 150. The trap disc 150 is mounted on the trap bolt 110 through a trap disc insertion opening 151. The trap disc insertion opening 151 has a shape that corresponds to the shapes of the second flat section 115 and the second curved section 117. Since the second flat section 115 limits the rotation of the trap disc 150, the trap disc 150 is not rotated after it is mounted on the trap bolt 110. The trap disc 150 serves to maintain the positions of the trap 120 and the latch release lever 130, which are mounted on the trap bolt 110.

[0045] Meanwhile, the latch spring 160 is formed on the latch bolt 110. Ring-shaped latch spring ring sections 164a and 164b are formed at both ends of the latch spring 160. One latch spring ring section 164a is attached to the spring locking section 134, while the other latch spring ring section 164b is connected to the mounting bracket 50 or the pivot arm 40. Therefore, when an external force is applied to the latch release lever 130 to rotate it in one direction, a spring force is exerted. Conversely, when the external force is removed, the latch release lever 130 is rotated in the opposite direction by a spring-like restoring force.

[0046] With regard to the Fig. 3 and Fig. 4 The latch unit 200 has a latch bolt 210 and a latch 220.

[0047] The latch bolt 210 is connected to the pivot arm 40 such that it is located on one side of the latch bolt 110, while having a substantially cylindrical shape. Therefore, when the pivot arm 40 rotates about the latch bolt 110, the latch bolt 210 rotates along the pivot arm 40. A step 218, projecting in a radial direction along the latch bolt 210, is formed in a substantially central position along the latch bolt 210.

[0048] The latch 220 is mounted on the latch bolt 210 through a latch insertion opening 221 and is moved. The movement of the latch 220 is stopped by the step 218. Since the latch insertion opening 221 has a circular shape, the latch 220 is rotatably mounted on the latch bolt 210.

[0049] The latch 220 has a movement section 222, which has a substantially curved shape, and a locking section 223, which extends from the movement section 222.

[0050] The motion section 222 has a shape that corresponds to the shape of the motion path section 122 of the latch 120. In one embodiment of the invention, the motion path section 122 has a convex shape, while the motion section 222 has a concave shape. When the pivot arm 40 rotates, the motion section 222 can move while opposite the motion path section 122. Therefore, as the motion section 222 moves along the motion path section 122, the latch 120 and the catch 220 do not collide with each other.

[0051] The locking section 223 is bent from the movement section 222 and has a shape that corresponds to the shape of the locking path section 123 of the latch 120. In the embodiment of the invention, the locking section 223 has a substantially straight shape, but can have any shape as long as the locking section 223 can be locked to the locking path section 123.

[0052] A latch release bolt insertion opening 224 is configured in a position of the latch 220 such that one end of a latch release bolt 226 is inserted therein. In one embodiment of the invention, the latch release bolt 226 is arranged close to the locking section 223. The other end of the latch release bolt 226 can be located on the seat section 132 or the unlocking section 133 of the latch release lever 130. A spring-loaded locking groove 227 is formed on the other side of the latch 220.

[0053] Meanwhile, according to one embodiment of the invention, the latch unit 200 has a latch disc 250. The latch disc 250 is mounted on the latch bolt 210 through a latch disc insertion opening 251. Since the latch disc insertion opening 251 has a substantially circular shape, the latch disc 250 is rotatably mounted on the latch bolt 210. The latch disc 250 serves to maintain the position of the latch 220, which is mounted on the latch bolt 210.

[0054] Meanwhile, the latch spring 260 is formed on the latch bolt 210. Ring-shaped latch spring ring sections 264a and 264b are formed at both ends of the latch spring 260. One latch spring ring section 264a is locked with the spring locking groove 227, while the other latch spring ring section 264b is connected to the pivot arm 40. Therefore, when an external force is applied to the latch 220 to rotate it in one direction, a spring force is exerted. Conversely, when the external force is released, the latch 220 is rotated in the opposite direction by a spring-like restoring force.

[0055] With regard to the Fig. 3 and Fig. 4 The cable pull unit 300 has the cable pull connecting element 310 and a cable pull guide section 320.

[0056] The cable connecting element 310 is inserted into the connecting element insertion opening 141 of the connecting lever 140, and one end of the cable C is firmly connected to the cable connecting element 310. The other end of the cable C is guided by the cable guide section 320 such that it is connected to the remote control device 60. Here, the cable guide section 320 is fixed to a cable holder 330, which is mounted on the inside of the door 10.

[0057] Fig. Figure 5 is a view representing a state in which a sliding door of a vehicle equipped with an open locking device according to an embodiment of the invention is closed. Fig. 6 is a section along line AA' in Fig. 5 viewed from above, Fig. Figure 7 is a view depicting a state in which a sliding door of a vehicle equipped with the open-holding locking device according to an embodiment of the invention is open, and Fig. 8 is a section along the line DD' in Fig. View from 7 above.

[0058] The following refers to the Fig. Figures 5 to 8 describe the configuration of the open locking device when door 10 is closed and open. Meanwhile, the Fig. 5 to 8 a state in which no tensile force F is exerted on the cable pull C.

[0059] With regard to the Fig. 5 and Fig. 6, when the door 10 is closed, the pivot arm 40 is folded in. Here, the movement section 222 of the latch 220 and the movement path section 122 of the catch 120 are opposite each other, and the locking section 223 and the latch release bolt 226 of the latch 220 are arranged at a distance from the locking path section 123 of the catch 120. The guide bolt 126 is inserted into one side of the guide opening 146.

[0060] With regard to the Fig. 7 and Fig. 8. When the door 10 is open, the pivot arm 40 is extended. As the door 10 rotates from the closed to the open position, the latch unit 100 does not rotate, and the latch unit 200 rotates along the pivot arm 40. Here, the movement section 222 of the latch 220 deviates from the movement path section 122 of the latch 120, and the locking section 223 of the latch 220 is in contact with the locking path section 123 of the latch 120. Therefore, because the latch 120 and the latch 220 interlock, the pivot arm 40 cannot rotate in the direction in which it is folded.

[0061] In this case, the latch release bolt 226 is located on the seat section 132 of the latch release lever 130 and is opposite the locking path section 123. The guide bolt 125 is continuously inserted into one side of the guide opening 146.

[0062] Fig. Figure 9 is a view showing a change in the open locking device before and after pulling the cable in the state where the sliding door is open, and Fig. 10 is a view which shows the changes to the latch and the trap. Fig. 9 represents.

[0063] The following will refer to the Fig. 9 and Fig. 10 describes the states before and after the application of the pulling force F to the rope C when the door 10 is open.

[0064] As in Fig. 9 shows that when the tensile force F is in the state of Fig. 8 is exerted on the cable pull C, the connecting lever 140, to which the cable pull C is connected, is guided by the guide pin 126 in such a way that it moves to one side (right side in Fig. 9) moves. Then the latch release lever 130, which is connected to the connecting lever 140, rotates in one direction (clockwise). Fig. 9) Therefore, the latch release bolt 226, which is located on the seat section 132, moves from the seat section 132 across the inclined surface to the release section 133. Since the release section 133 projects further than the seat section 132, the latch 220 is moved by the release section 133 in one direction (clockwise). Fig. 9) rotated. As the latch 220 rotates, the locking section 223 deviates from the locking path section 123. As a result, the pivot arm 40 can be rotated in the direction in which it is folded.

[0065] With reference to Fig. 10 represents the locked state (see X in Fig. 10) the trap 120 and the latch 220 before the pulling force F is applied to the cable C and the unlocked state (see X' in Fig. 10) the trap 120 and the latch 220 after the pulling force F has been applied to the rope pull C.

[0066] According to the embodiments of the invention, it is possible to limit the rotation of a pivot arm with a rail without impairment, so that a sliding door is kept stably open regardless of a difference between a door movement path and a rail movement path.

[0067] Furthermore, according to the embodiments of the invention, a latch on a latch bolt is not rotated, and a locking path is provided so that a locking or unlocking operation between a latch and a latch is carried out stably by rotating a latch release lever.

Claims

[1] Open locking device of a sliding door (10) configured to limit or release a rotation of a pivot arm (40) without interference with a rail (20), wherein the open locking device comprises: a trap unit (100) comprising a trap bolt (110) which serves as a pivot point of the pivot arm (40), a trap (120) mounted on the trap bolt (110), and a latch release lever (130) rotatably mounted on the trap bolt (110); a latch unit (200) comprising a latch bolt (210) arranged on one side of the pivot arm (40) and a latch (220) rotatably mounted on the latch bolt (210) and configured to be lockable with or unlockable from the latch (120); and a cable pull unit (300) which is connected to the latch release lever (130) and is configured to rotate the latch release lever (130), wherein the latch release lever (130) is configured to rotate in one direction to rotate the latch (220), wherein the outer circumference of the latch bolt (110) has a flat section (115) and a curved section (117) and the trap (120) has an inner circumference of a shape that corresponds to the shapes of the flat section (115) and the curved section (117) in order to fit onto the trap bolt (110). [2] Open-holding locking device according to claim 1, wherein the latch (220) has a movement section (222) which is configured to move while facing the latch (120) by rotating the pivot arm (40). [3] Open-holding locking device according to claim 2, wherein the latch (220) has a locking section (223) which is bent and extends from the movement section (222) and which is configured to be lockable with the latch (120) to limit rotation of the pivot arm (40) from one direction to another. [4] Open locking device according to claim 3, wherein the latch (120) has a motion path section (122) to define a motion path of the motion section (222) while it is opposite the motion section (222). [5] Open locking device according to claim 4, wherein the latch (120) has a locking path section (123) which is bent from the movement path section (122) such that it extends to an inside of the latch (120) and which forms a locking path with which the locking section (223) can be locked. [6] Open locking device according to any one of claims 1 to 5, wherein a latch release bolt (226) is provided on one side of the latch (220) such that the latch release lever (130) is configured to rotate the latch (220). [7] Open locking device according to claim 6, wherein the latch release lever (130) comprises: a seat section (132) on which the latch release bolt (226) is configured such that it can be positioned by rotating the swivel arm (40); and a release section (133) projecting from the seat section (132), wherein the latch release bolt (226) is configured to move along the release section (133) by rotating the latch release lever (130). [8] Open locking device according to claim 7, further comprising: a sloping surface between the seat section (132) and the unlocking section (133). [9] Open locking device according to any one of claims 1 to 8, further comprising: a connecting lever (140) with a first side rotatably connected to the latch release lever (130) and a second side connected to the cable pull unit (300). [10] Open locking device according to claim 9, wherein: a guide opening (146) is provided in the connecting lever (140); and a guide pin (126) is provided on the latch (120) and is configured such that it is inserted into the guide opening (146). [11] Open locking device according to any one of claims 1 to 10, wherein: a latch spring (160) is provided on the latch bolt (110) and is configured to exert a spring force on the latch release lever (130); and a latch spring (260) is provided on the latch bolt (210) and is configured such that it exerts a spring force on the latch (220). [12] Vehicle comprising: a vehicle body (B); a rail (20) which is mounted on the vehicle body (B); a roller unit (30) of which a first end is inserted into the rail (20) and a second end is rotatably connected to a swivel arm (40); and a sliding door (10) comprising a mounting bracket (50) to which the pivot arm (40) is rotatably connected, and further comprising an open-holding locking device configured to limit or release rotation of the pivot arm (40) without interference with the rail (20), wherein the open-holding locking device comprises: a trap unit (100) comprising a trap bolt (110) which serves as a pivot point of the pivot arm (40), a trap (120) mounted on the trap bolt (110), and a latch release lever (130) rotatably mounted on the trap bolt (110); a latch unit (200) comprising a latch bolt (210) arranged on one side of the pivot arm (40) and a latch (220) rotatably mounted on the latch bolt (210) and configured to be lockable with or unlockable from the latch (120); and a cable pull unit (300) which is connected to the latch release lever (130) and is configured to rotate the latch release lever (130), wherein the latch release lever (130) is configured to rotate in one direction to rotate the latch (220), wherein an outer circumference of the latch bolt (110) has a flat section (115) and a curved section (117), and the trap (120) has an inner circumference of a shape that corresponds to the shapes of the flat section (115) and the curved section (117) in order to fit onto the trap bolt (110). [13] Vehicle according to claim 12, wherein the latch (220) comprises: a movement section (222) which is configured to move while facing the trap (120) by rotating the pivot arm (40); and a locking section (223) which is curved and extends from the movement section (222) and which is configured to be lockable with the latch (120) to limit rotation of the pivot arm (40) from one direction to another. [14] Vehicle according to claim 13, wherein the trap (120) comprises: a motion path segment (122) to define a motion path of the motion segment (222) while it is opposite the motion segment (222); and a locking path section (123) which is bent from the movement path section (122) such that it extends to an inside of the trap (120) and which forms a locking path with which the locking section (223) can be locked. [15] Vehicle according to one of claims 12 to 14, wherein a pawl release bolt (226) is provided on one side of the pawl (220) such that the pawl release lever (130) is configured to rotate the pawl (220). [16] Vehicle according to claim 15, wherein the pawl release lever (130) comprises: a seat section (132) on which the latch release bolt (226) is configured such that it can be positioned by rotating the swivel arm (40); and a release section (133) projecting from the seat section (132), wherein the latch release bolt (226) is configured to move along the release section (133) by rotating the latch release lever (130), the vehicle further comprises a sloping surface between the seat section (132) and the unlocking section (133). [17] Vehicle according to any one of claims 12 to 16, further comprising: a connecting lever (140) with a first side rotatably connected to the latch release lever (130) and a second side connected to the cable pull unit (300). [18] Vehicle according to claim 17, wherein: a guide opening (146) is provided in the connecting lever (140); and a guide pin (126) is provided on the latch (120) and is configured such that it is inserted into the guide opening (146). [19] Vehicle according to any one of claims 12 to 18, wherein: a latch spring (160) is provided on the latch bolt (110) and is configured to exert a spring force on the latch release lever (130); and a latch spring (260) is provided on the latch bolt (210) and is configured such that it exerts a spring force on the latch (220).

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