Sliding door device for vhiecle

Abstract

A sliding door device for a vehicle according to one embodiment of the present invention comprises: a door for opening and closing a door opening formed in a vehicle body; a door arm having one end rotatably connected to one end of the door and the other end configured to move along a side sill of the vehicle body; a lower slider coupled to the other end of the door arm and configured to move linearly along a side sill of the vehicle body; a lower arm plate connecting the other end of the door arm and the lower slider, configured to rotate and move linearly when the lower slider moves along the side sill; a door power connection part configured between the lower slider and one end of the door arm; and a vehicle power connection part configured at a position corresponding to the door power connection part on the vehicle body, and forming an electrical connection with the door power connection part according to the rotation of the door arm.

Description

Technology Field

[0001] The present invention relates to a sliding door device for a vehicle, and more specifically, to a sliding door device for a vehicle configured to slide forward and backward along the longitudinal direction of the vehicle to open and close a door opening of the vehicle body. Background Technology

[0002] Generally, a vehicle is formed with a passenger compartment of a predetermined size in which a driver or a passenger can ride, and a passenger compartment opening and closing door is installed on the vehicle body to open and close the said passenger compartment.

[0003] In the case of a passenger car, the above-mentioned door for opening and closing the vehicle is equipped with a front door installed at the front along the longitudinal direction of the vehicle and a rear door installed at the rear along the longitudinal direction of the vehicle, and the front door and the rear door are typically installed to be rotatable via hinges on the vehicle body.

[0004] In the case of a passenger van capable of carrying many people, the above-mentioned passenger compartment door is designed to open and close the passenger compartment by sliding back and forth along the length of the vehicle.

[0005] The sliding door of a passenger van is designed so that the door moves backward along the longitudinal direction of the vehicle to open the passenger compartment, while moving forward along the longitudinal direction of the vehicle to close the passenger compartment. This has the advantage of requiring less space for opening and closing the door compared to a hinged door of a passenger car, and allows the door opening formed in the vehicle body to be fully opened even in a narrow space.

[0006] However, conventional sliding passenger cabin doors have a problem in that, due to the fixed sliding door arm structure, the door arm encroaches excessively into the vehicle's side sill when opening or closing, requiring the vehicle's floor height to be increased to secure this space.

[0007] Furthermore, conventional power sliding cabin doors must automatically close after opening via the operation of a switch or outside handle, and power cables are responsible for transmitting power and signals for this purpose. This power cable configuration leads to increased costs and difficulties in layout design. The problem to be solved

[0008] Accordingly, the present invention aims to solve the above-mentioned problems. According to the present invention, by adopting a door power connection structure of the slip ring type that is connected along the movement trajectory of the door arm, it is possible to implement a power sliding door without a power cable and to solve the problem of excessive space in which the door arm intrudes into the side sill of the vehicle. means of solving the problem

[0009] A sliding door device for a vehicle according to one embodiment of the present invention comprises: a door for opening and closing a door opening formed in a vehicle body; a door arm having one end rotatably connected to one end of the door and the other end configured to move along the side sill of the vehicle body; a lower slider coupled to the other end of the door arm and configured to move linearly along the side sill of the vehicle body; a lower arm plate connecting the other end of the door arm and the lower slider, configured to rotate and move linearly when the lower slider moves along the side sill; a door power connection part electrically connected to the lower arm plate and extended through the door arm to transmit power required for the door; a power plate configured in the movement path of the lower arm plate of the side sill and electrically connected to the door power connection part; and a vehicle power connection part electrically connected to the power plate and transmitting power required for the door to the door power connection part via the power plate.

[0010] A plurality of first rollers are formed protruding at regular intervals on the lower arm plate, and the first rollers can be inserted into and moved on a plurality of rails formed on the upper surface of the side sill.

[0011] The first roller is configured such that two rollers having a first height and two rollers having a second height smaller than the first height are arranged alternately, and the rail may be formed in multiple numbers with a depth corresponding to the height of each of the four rollers.

[0012] The first roller is coupled to the circumference of a roller shaft protruding on the lower arm plate, and a roller electrode is provided inside the roller shaft that penetrates the roller shaft in a direction perpendicular to the lower arm plate, and the upper end of the roller electrode contacts the power plate to form an electrical connection, and the lower end of the roller electrode contacts the door power connection part to form an electrical connection.

[0013] The above door power connection and the above vehicle power connection may be made of electric wires.

[0014] The above power plate may be made of a copper (Cu) plate.

[0015] The above door power connection can be inserted into a groove provided along the longitudinal direction of the door arm within the lower arm plate.

[0016] The roller electrode may be provided inside the roller shaft to which the roller having a first height among the first rollers is coupled.

[0017] The other end of the door arm, the lower slider, and the lower arm plate are connected in the vertical direction of the vehicle body by an arm pin, and the door arm and the lower arm plate may be configured to rotate around the arm pin.

[0018] The other end of the door arm is provided in a double layer in the vertical direction, and the lower slider can be coupled between the other ends of the door arm provided in the double layer by the arm pin.

[0019] The lower arm plate can be rotatably coupled to the upper surface of the door arm by the arm pin.

[0020] One end of the above door arm can be connected to the above door so as to be hinge-rotatable by a door pin.

[0021] A second roller may be formed protrudingly on the upper surface between one end and the other end of the door arm so that the door arm moves along a path that pivots toward the outside of the vehicle body. Effects of the invention

[0022] According to one embodiment of the present invention, by adopting a door power connection structure of the slip ring type that is connected along the movement trajectory of the door arm, the power cable configuration can be eliminated, thereby reducing costs and improving layout freedom.

[0023] In addition, the amount of door arm intrusion into the vehicle body is eliminated to realize a flat body structure, thereby allowing the step height to be reduced. Brief explanation of the drawing

[0024] FIG. 1 is a schematic diagram showing a sliding door device of a vehicle according to one embodiment of the present invention. Figure 2 is a drawing showing an enlarged view of section 'B' of Figure 1. FIG. 3 is a plan view showing a sliding door device of a vehicle according to one embodiment of the present invention as viewed from above. Figure 4 is a drawing showing an enlarged view of section 'D' of Figure 3. Figure 5 is an enlarged view of section 'C' of Figure 1. FIG. 6 is a diagram showing the operating state of a sliding door device of a vehicle according to one embodiment of the present invention. Figure 7 is an enlarged view of section 'E' of Figure 6. Figure 8 is a drawing showing an enlarged view of the 'F' portion of Figure 6. Figure 9 is a diagram showing the view cut along the line 'G-G' of Figure 8. Figure 10 is a drawing showing an enlarged view of the 'H' portion of Figure 9. Specific details for implementing the invention

[0025] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0026] In addition, in various embodiments, components having the same configuration are described using the same reference numerals, and in one representative embodiment, only configurations different from one embodiment are described.

[0027] It should be noted that the drawings are schematic and not drawn to scale. The relative dimensions and proportions of parts in the drawings are exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are merely illustrative and not limiting. Additionally, the same reference numeral is used to denote similar features for the same structure, element, or part appearing in two or more drawings. Where one part is referred to as being "on" or "on" another part, it may be directly on top of the other part or may enclose other parts in between.

[0028] The embodiments of the present invention specifically illustrate one embodiment of the present invention. As a result, various variations of the illustration are expected. Accordingly, the embodiments are not limited to the specific form of the illustrated area and include, for example, variations in form resulting from manufacturing.

[0029] Hereinafter, with reference to the attached drawings, the structure of a sliding door device of a vehicle according to an embodiment of the present invention will be described in detail.

[0030] FIG. 1 is a schematic drawing of a sliding door device of a vehicle according to one embodiment of the present invention, FIG. 2 is an enlarged drawing of part 'B' of FIG. 1, and FIG. 3 is a top view of a sliding door device of a vehicle according to one embodiment of the present invention.

[0031] Referring to FIG. 1, a sliding door device of a vehicle according to one embodiment of the present invention can be applied to the lower side, i.e., part 'A', of a rear door (10) installed at the rear along the longitudinal direction of the vehicle, and can be applied to a structure in which the rear door (10) is opened and closed by movement in the inner and outer directions of the vehicle and forward and backward sliding movement along the longitudinal direction of the vehicle. In addition, the structure of a sliding door device of a vehicle according to one embodiment of the present invention can be applied not only to the rear door (10) but also to the front door.

[0032] Referring to FIGS. 2 and 3, a sliding door device of a vehicle according to one embodiment of the present invention includes a door (10), a door arm (20), a lower slider (30), a lower arm plate (40), a door power connection part (70), a power plate (60), and a vehicle power connection part (80).

[0033] The door (10) opens and closes a door opening formed in the vehicle body, and the door arm (20) is connected to the door (10) and the vehicle body. One end of the door arm (20) may be rotatably connected to one side of the door (10), and the other end of the door arm (20) may be rotatably and linearly movably connected to the side sill (15) of the vehicle body. The side sill (15) may be positioned in the longitudinal direction of the vehicle body at the lower side of the vehicle body, and the side sill (15) may be provided with a side rail (not shown) that provides a path for the other end of the door arm (20) to move.

[0034] A lower slider (30) is attached to the other end of the door arm (20), and the lower slider (30) can move in a straight line along a side rail provided along the longitudinal direction of the side sill (15).

[0035] Additionally, a lower arm plate (40) is coupled to the other end of the door arm (20) to connect the other end of the door arm (20) and the lower slider (30), and the lower arm plate (40) can rotate and move linearly when the lower slider (30) moves along a side rail provided on the side sill (15). The lower arm plate (40) may also be provided to rotate cycloidally along a cycloid rail formed longitudinally on the vehicle body provided on the side sill (15).

[0036] Meanwhile, a plurality of first rollers (50) may be formed protruding from the lower arm plate (40) at regular intervals along the circumferential direction of the lower arm plate (40), and the first rollers (50) may be inserted into and moved by four rails (62) provided in the side sill (15). At this time, the rails (62) may be made of cycloid rails so that the lower arm plate (40) can rotate cycloidally as the first rollers (50) are inserted and moved.

[0037] Meanwhile, the first roller (50) may be provided such that two rollers (52) having a first height and two rollers (54) having a second height smaller than the first height are arranged alternately, and the rail may be formed in multiple numbers with a depth corresponding to the height of each of the rollers (52, 54).

[0038] The other end of the door arm (20), the lower slider (30), and the lower arm plate (40) can be joined in the vertical direction of the vehicle body by an arm pin (45), and the door arm (20) and the lower arm plate (40) can be rotated relative to the lower slider (30) around the arm pin (45).

[0039] Additionally, a second roller (55) may be formed protrudingly on the upper surface between one end and the other end of the door arm (20) so that the door arm (20) moves along a path that pivots toward the outside of the vehicle body.

[0040] The door power connection part (70) can be electrically connected to the lower arm plate (40) and can be extended along the length of the door arm (20) through the door arm (20) to transmit power required for the door. The other end of the door arm (20) can be provided in two layers in the vertical direction of the vehicle body, and the door power connection part (70) can be positioned and extended between the other ends of the door arm (20) provided in two layers. The door power connection part (70) can be made of an electric wire.

[0041] The power plate (60) may be provided on the side sill (15) of the vehicle body and may be provided on the movement path of the lower arm plate (40) and electrically connected to the door power connection part (70). The power plate (60) may be made of a copper (Cu) plate.

[0042] The vehicle power connection part (80) is electrically connected to the power plate (60) and can transmit the power required for the door (10) to the door power connection part (70) via the power plate (60). The vehicle power connection part (80) may be made of an electric wire.

[0043] Figure 4 is a drawing showing an enlarged view of section 'D' of Figure 3.

[0044] Referring to FIG. 4, the electrical connection between the door power connection part (70) and the power plate (60) can be made at the side of two first rollers (52) having a first height. That is, the first rollers (52) having a first height are rotatably coupled around a roller shaft (53) protruding on the lower arm plate (40), and a roller electrode (56) that penetrates the roller shaft (53) in a direction perpendicular to the lower arm plate (40) can be provided inside the roller shaft (53). The power plate (60) can make contact with the upper end of the roller electrode (56) to form an electrical connection, and the door power connection part (70) can make contact with the lower end of the roller electrode (56) to form an electrical connection.

[0045] The door power connection part (70) can be inserted into a groove (42) provided along the longitudinal direction of the door arm (20) within the lower arm plate (40). The roller electrodes (56) can be provided as a pair arranged side by side, and a plurality of door power connection parts (70) and power plates (60) that contact each roller electrode (56) can be provided, equal to the number of roller electrodes (56).

[0046] Figure 5 is an enlarged view of section 'C' of Figure 1.

[0047] As illustrated in FIG. 5, one end of the door arm (20) can be hinge-rotatably connected to the door (10) by a door pin (25). The door pin (25) can connect the door arm (20) to the door (10) by penetrating the one end of the door arm (20) vertically through a protrusion formed in the door (10).

[0048] FIG. 6 is a drawing showing the operating state of a sliding door device of a vehicle according to one embodiment of the present invention, and FIG. 7 is a drawing showing an enlarged view of part 'E' of FIG. 6.

[0049] Referring to FIGS. 6 and 7, a power plate (60) is provided along the longitudinal direction of the side sill (15) of a vehicle in the path of the lower arm plate (40), one side of which is electrically connected to a roller electrode (56) provided on the lower arm plate (40), and the other side of which is electrically connected to a vehicle power connection part (80). The vehicle power connection part (80) may be provided in the side sill (15) and may extend toward the opposite side of the door (10). The vehicle power connection part (80) may be provided in multiple numbers to contact each power plate (60), equal to the number of power plates (60).

[0050] Figure 8 is an enlarged view of section 'F' of Figure 6, Figure 9 is a view cut along the line 'G-G' of Figure 8, and Figure 10 is an enlarged view of section 'H' of Figure 9.

[0051] Referring to FIGS. 8 and 9, a plurality of rails (62) may be formed on the upper surface of the side seal (15) at a depth corresponding to the height of the first roller (52), and a roller electrode (56) is provided inside the roller shaft (53) that surrounds the outer surface of the first roller (52), penetrating the roller shaft (53) vertically. At this time, the first roller (52) may be a roller having a first height.

[0052] As illustrated in FIG. 10, a power plate (60) is attached along the rail (62) on the upper surface of the rail (62), and the upper end of the roller electrode contacts the power plate. Additionally, the lower end of the roller electrode contacts a door power connection inserted into a groove provided along the longitudinal direction of the door arm (20) inside the lower arm plate. Thus, an electrical connection can be made between the door power connection (70) and the power plate (60) through the roller electrode.

[0053] Due to this connection structure, contact with the power plate (60) by the roller electrode (56) is maintained even while the first roller (50) moves along the rail (62), so the power required for the door (10) can be continuously delivered without interruption of the electrical connection even when the door (10) is opened and closed.

[0054] In this way, according to one embodiment of the present invention, by adopting a door power connection structure of the slip ring type that is connected along the movement trajectory of the door arm, the power cable configuration can be eliminated, thereby reducing costs and improving layout freedom.

[0055] In addition, the amount of door arm intrusion into the vehicle body is eliminated to realize a flat body structure, thereby allowing the step height to be reduced.

[0056] Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and includes all modifications within the scope recognized as equivalent that can be easily made by those skilled in the art from the embodiments of the present invention. Explanation of the symbols

[0057] 10: Door 15: Side sill 20: Door arm 25: Door pin 30: Lower slider 40: Lower arm plate 42: Home 45: Female pin 50, 52, 54: 1st roller 53: Roller shaft 55: Second roller 56: Roller electrode 60: Power plate 62: Rail 70: Door power connector 80: Vehicle power connector

Claims

Claim 1 A sliding door device for a vehicle comprising: a door for opening and closing a door opening formed in a vehicle body; a door arm having one end rotatably connected to one end of the door and the other end configured to move along a side sill of the vehicle body; a lower slider coupled to the other end of the door arm and configured to move linearly along a side sill of the vehicle body; a lower arm plate connecting the other end of the door arm and the lower slider to each other and configured to rotate and move linearly when the lower slider moves along the side sill; a door power connection part electrically connected to the lower arm plate and extending through the door arm to transmit power required for the door; a power plate configured in the movement path of the lower arm plate of the side sill and electrically connected to the door power connection part; and a vehicle power connection part electrically connected to the power plate and transmitting power required for the door to the door power connection part via the power plate. Claim 2 A sliding door device of a vehicle according to claim 1, wherein a plurality of first rollers are formed protruding at regular intervals on the lower arm plate, and the first rollers are inserted into and moved on a plurality of rails formed on the upper surface of the side sill. Claim 3 In claim 2, the first roller is configured such that two rollers having a first height and two rollers having a second height smaller than the first height are arranged alternately, and the rail is formed in multiple numbers with a depth corresponding to the height of each of the four rollers, a sliding door device of a vehicle. Claim 4 A sliding door device of a vehicle according to claim 3, wherein the first roller is coupled to the circumference of a roller shaft protruding on the lower arm plate, and a roller electrode is provided inside the roller shaft that penetrates the roller shaft in a direction perpendicular to the lower arm plate, the upper end of the roller electrode contacts the power plate to form an electrical connection, and the lower end of the roller electrode contacts the door power connection part to form an electrical connection. Claim 5 In claim 1, the sliding door device of a vehicle, wherein the door power connection part and the vehicle power connection part are formed by an electric wire. Claim 6 In claim 1, the power plate is a sliding door device of a vehicle made of a copper (Cu) plate. Claim 7 In claim 1, the door power connection is a sliding door device of a vehicle that is inserted into a groove provided along the longitudinal direction of the door arm within the lower arm plate. Claim 8 In claim 4, the roller electrode is a sliding door device of a vehicle provided inside a roller shaft to which a roller having a first height among the first rollers is coupled. Claim 9 A sliding door device for a vehicle according to claim 1, wherein the other end of the door arm, the lower slider, and the lower arm plate are connected in the vertical direction of the vehicle body by an arm pin, and the door arm and the lower arm plate are configured to rotate around the arm pin. Claim 10 A sliding door device of a vehicle, wherein, in claim 9, the other end of the door arm is provided in a double layer in the vertical direction, and the lower slider is coupled by the arm pin between the other ends of the door arm provided in the double layer. Claim 11 In claim 10, the lower arm plate is a sliding door device of a vehicle rotatably coupled to the upper surface of the door arm by the arm pin. Claim 12 A sliding door device of a vehicle, wherein one end of the door arm is hinge-rotatably connected to the door by a door pin in the first paragraph. Claim 13 In claim 12, a sliding door device of a vehicle having a second roller protruded from the upper surface between one end and the other end of the door arm so that the door arm moves along a path of pivoting toward the outside of the vehicle body.

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