Slide transmission device for vehicle

Abstract

A slide transmission device for a vehicle includes: a first rail portion fixed to a vehicle body; a second rail portion rail-coupled to the first rail portion to slide in the front-rear direction and coupled to a movement guide protruding from the first rail portion; and a damper mounted in a mounting hole formed in the second rail portion and configured to support the movement guide inserted into the mounting hole of the second rail portion.

Description

Technical Field

[0001] The present disclosure relates to a slide transfer device for a vehicle, and more particularly, to a slide transfer device for a vehicle capable of improving performance of absorbing vibration and compensating for shaft misalignment when an upper rail slides along a lower rail. Background Art

[0002] Generally, a vehicle console is a structure provided in a space between a driver's seat and a passenger seat in a vehicle interior, and is used as a storage location for storing items used by the driver and the passengers.

[0003] In addition to storing items, the vehicle console is also used to allow the driver's arms to rest thereon to reduce the driver's fatigue caused by long-term driving.

[0004] For these purposes, a general vehicle console has a box shape with an openable top and includes: a console body coupled to a floor surface between a driver seat and a passenger seat; and a cover member hinged to one side of the top of the console body to cover the open top.

[0005] Here, the console body has a box shape with an openable top, and a storage space for storing items is formed therein.

[0006] The cover member is hinged to one side of the top of the console body and is used to open or close the open top of the console body. The cover member also serves as an armrest, allowing the driver to rest his arms comfortably after the cover member covers the top of the console body.

[0007] The cover member is mounted to be slidably movable from the console body to selectively slide relative to the position of the driver's arm.

[0008] However, in a structure provided with a bearing for sliding movement of a cover member, a gap is inevitably generated in a state where the bearing is assembled to a moving rail, and therefore additional components may be included in the structure to compensate for the gap, which leads to problems such as an increase in the number of assembly processes and the number of components.

[0009] Furthermore, due to the gap, vibration from the vehicle body is transmitted to the cover member through the console body and the moving rail and then to the driver through the cover member, thereby causing problems of quality degradation and deteriorated operational feel due to high operating force generated by the gap.

[0010] The information included in this background of the disclosure is only for enhancement of understanding of the general background of the disclosure and may not be taken as an acknowledgment or any form of suggestion that this information forms the prior art already known to a person skilled in the art. Summary of the invention

[0011] Various aspects of the present disclosure are directed to providing a sliding transfer device for a vehicle, the device comprising: a structure in which an upper rail slides along a lower rail and the upper rail slides in a longitudinal direction of a moving guide protruding from the lower rail; and a bearing mounted in a mounting hole formed in the upper rail and into which the moving guide is inserted, so that the bearing absorbs vibration generated when the upper rail slides, thereby enabling stable sliding movement.

[0012] In one aspect, the present disclosure provides a sliding transfer device for a vehicle, the sliding transfer device comprising: a first rail portion fixed to a vehicle body; a second rail portion, the rail being connected to the first rail portion to slide in a front-rear direction and connected to a movable guide protruding from the first rail portion; and a damper mounted in a mounting hole formed in the second rail portion and configured to support the movable guide inserted into the mounting hole of the second rail portion.

[0013] In an exemplary embodiment of the present disclosure, the moving guide may extend from an upper surface of the first rail portion at an inclined angle and may be inserted into the mounting hole of the second rail portion.

[0014] In another exemplary embodiment of the present disclosure, the damper may include a diameter corresponding to an inner diameter of the mounting hole, and a center portion of the damper may surround an outer peripheral surface of the moving guide.

[0015] In still another exemplary embodiment of the present disclosure, the damper may include a plurality of holes which are radially formed from a central portion of the damper and surround an outer peripheral surface of the moving guide.

[0016] In still another exemplary embodiment of the present disclosure, the damper may be made of an elastic material and may have one side opened to allow the moving guide to be positioned in a center portion thereof.

[0017] In still another exemplary embodiment of the present disclosure, the damper may be provided in plural, and at least one damper may be installed in the installation hole.

[0018] In another exemplary embodiment of the present disclosure, the first rail portion may include a front panel assembly and a rear panel assembly configured to support a lead screw, the lead screw is configured to transmit an operating torque to the second rail portion, and the front panel assembly and the rear panel assembly may include a support guide configured to support the lead screw, a drive motor configured to rotate the lead screw, and a reducer configured to reduce the rotational speed of the drive motor.

[0019] In yet another exemplary embodiment of the present disclosure, the front panel assembly and the rear panel assembly may include bearing members respectively installed in the support guide and the reducer and coupled to outer peripheral surfaces of lead screws of the support guide and the reducer around an axis.

[0020] In still another exemplary embodiment of the present disclosure, the bearing member may be made of an elastic material and may include a plurality of holes radially formed from a center portion thereof.

[0021] In another exemplary embodiment of the present disclosure, the sliding conveyor may further include a cable portion and a cable body, wherein the cable portion is connected to a main wire configured to slide with the second rail portion and is in electrical contact with the main wire, and the cable body is configured to allow the cable portion to be selectively pulled out or pulled in when the second rail portion slides in the front-rear direction of the first rail portion.

[0022] In another exemplary embodiment of the present disclosure, the cable portion may include: a connector member that electrically contacts the main wire; and a pull-out member that is connected to the connector member, extends in the left-right direction of the second rail portion, and is wound around the inside of the cable body fixed to the first rail portion.

[0023] In yet another exemplary embodiment of the present invention, the draw-out member may be a flexible flat cable (FFC).

[0024] Other aspects and exemplary implementations of the disclosure are discussed below.

[0025] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally include motor vehicles, such as passenger vehicles (including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles), marine vessels (including various ships and boats), aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle having two or more sources of power, for example, a vehicle powered by both gasoline and electricity.

[0026] The methods and apparatus of the present disclosure have other features and advantages that will be apparent from or set forth in more detail in the accompanying drawings and the following detailed description incorporated herein, which together serve to explain certain principles of the present disclosure.

[0027] The above and other features of the present disclosure are discussed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a view exemplarily showing a sliding transmission device for a vehicle according to an exemplary embodiment of the present disclosure;

[0029] Figure 2 is an exploded perspective view of a sliding transmission device for a vehicle according to an exemplary embodiment of the present disclosure;

[0030] Figure 3 is a view exemplarily showing a second rail portion of a slide transfer device for a vehicle according to an exemplary embodiment of the present disclosure;

[0031] Figure 4 is a view exemplarily showing a state in which a damper according to an exemplary embodiment of the present disclosure is installed in a slide transmission device for a vehicle;

[0032] Figure 5 is a view exemplarily showing a damper of a sliding transmission device for a vehicle according to an exemplary embodiment of the present disclosure;

[0033] Figure 6 It is shown Figure 1 A section AA of a first rail portion and a second rail portion of a slide transfer device for a vehicle according to an exemplary embodiment of the present disclosure in a state where the first rail portion and the second rail portion are track-coupled to each other;

[0034] Figure 7 is a view exemplarily illustrating a state in which a damper according to an exemplary embodiment of the present disclosure is coupled to a moving guide of a slide transmitting apparatus for a vehicle;

[0035] Figure 8 is a view exemplarily showing a front panel assembly and a rear panel assembly of a slide transfer device for a vehicle according to an exemplary embodiment of the present disclosure;

[0036] Fig. 9 and Fig.10 yes Figure 8 A view of region A, region B, and region B′ showing the structure of a support guide and a speed reducer of a sliding transmission device for a vehicle according to an exemplary embodiment of the present disclosure; and

[0037] Fig.11 2 is a view exemplarily illustrating a cable portion and a cable body of a slide transmission device for a vehicle according to an exemplary embodiment of the present disclosure.

[0038] It will be appreciated that the accompanying drawings are not necessarily drawn to scale, and that they present somewhat simplified representations of various features illustrating the basic principles of the present disclosure. The intended design features of the present disclosure as included herein (including, for example, specific dimensions, orientations, locations, and shapes) will be determined in part by the specific intended application and use environment.

[0039] In the drawings, the same or similar reference numerals refer to the same or equivalent parts of the present disclosure throughout the several figures of the drawing. DETAILED DESCRIPTION

[0040] Reference will now be made in detail to various embodiments of the present disclosure, examples of which are shown in the accompanying drawings and described below. Although the present disclosure will be described in conjunction with exemplary embodiments of the present disclosure, it should be understood that this specification is not intended to limit the present disclosure to those exemplary embodiments of the present disclosure. On the other hand, the present disclosure is intended to cover not only the exemplary embodiments of the present disclosure, but also various replacements, modifications, equivalents and other embodiments that may be included in the spirit and scope of the present disclosure as defined by the appended claims.

[0041] Now, a detailed description will be given according to exemplary embodiments included herein with reference to the accompanying drawings.

[0042] Advantages and features of the present disclosure and methods of achieving the present disclosure will be apparent with reference to exemplary embodiments described in detail below.

[0043] However, the present disclosure may be embodied in various forms and should not be construed as being limited to the exemplary embodiments set forth herein. Instead, exemplary embodiments are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. The present disclosure is limited only by the categories of the claims.

[0044] In describing the present disclosure, if a detailed explanation of a related known function or structure is considered to unnecessarily obscure the gist of the present disclosure, such explanation has been omitted but will be understood by those skilled in the art.

[0045] Figure 1 is a view of a sliding transmission device for a vehicle according to an exemplary embodiment of the present disclosure, Figure 2 is an exploded perspective view of a slide transmission device for a vehicle according to an exemplary embodiment of the present disclosure.

[0046] Figure 3 is a view exemplarily showing a second rail portion of a slide transfer device for a vehicle according to an exemplary embodiment of the present disclosure, Figure 4 is a view exemplarily showing a state in which a damper according to an exemplary embodiment of the present disclosure is installed in a slide transmission device for a vehicle, and Figure 5 is a view exemplarily illustrating a damper of a slip transmission apparatus for a vehicle according to an exemplary embodiment of the present disclosure.

[0047] Figure 6 It is shown Figure 1 A cross section AA of a state in which a first rail portion and a second rail portion of a slide transfer device for a vehicle according to an exemplary embodiment of the present disclosure are track-coupled to each other, and Figure 7 is a view exemplarily illustrating a state in which a damper according to an exemplary embodiment of the present disclosure is coupled to a moving guide of a slide transmitting apparatus for a vehicle.

[0048] Figure 8 is a view exemplarily showing a front panel assembly and a rear panel assembly of a slide transfer device for a vehicle according to an exemplary embodiment of the present disclosure, Fig. 9 and Fig.10 yes Figure 8 A view of region A, region B, and region B′ showing the structure of a support guide and a speed reducer of a sliding transmission device for a vehicle according to an exemplary embodiment of the present disclosure, and Fig.11 2 is a view illustrating a cable portion and a cable body of a slide transmission device for a vehicle according to an exemplary embodiment of the present disclosure.

[0049] Typically, a slidable transfer structure (e.g., a vehicle center console) is provided in a space between a driver's seat and a passenger seat in a vehicle interior, the slidable transfer structure is installed with various types of electrical components such as a universal serial bus (USB) and a wire conversion (SBW), and the slidable transfer structure is used as a storage location for storing items used by the driver and passengers.

[0050] A vehicle center console may be slidably mounted between a driver seat and a passenger seat to provide maximum convenience for rear seat occupants in vehicles including two or more rows of seats.

[0051] To this end, the slide transmitting apparatus for a vehicle according to the present exemplary embodiment includes a first rail portion 100 and a second rail portion 200 .

[0052] The first rail portion 100 and the second rail portion 200 are rail-coupled to each other, and the second rail portion 200 is rail-coupled to the first rail portion 100 and slides in the front-rear direction of the first rail portion 100 , which has a length and is fixedly coupled to the vehicle body.

[0053] The first rail portion 100 and the second rail portion 200 may be a lower rail and an upper rail, respectively.

[0054] Therefore, when a structure such as a center console moves between the first row of seats and the second row of seats in a state where the second rail portion 200 (upper rail) is slidably mounted to the guide rail 110 of the first rail portion 100 (lower rail), the second rail portion 200 to which the structure is connected slides in the front-rear direction of the first rail portion 100 including the guide rail 110.

[0055] Here, the first rail part 100 may include a moving guide 131 protruding toward the second rail part 200. Because the moving guide 131 is bent from the upper surface of the first rail part 100 at a predetermined inclination and inserted into the mounting hole H in the second rail part 200 (see Figure 3 and Figure 7 ), so the second rail portion 200 can slide stably without being separated from the first rail portion 100.

[0056] The first rail portion 100 including the guide rail 110 includes a front portion and includes a rear portion, a front panel assembly 120 shielded from the outside by a cover 120a is coupled to the front portion, and a rear panel assembly 130 shielded from the outside by a cover 130a is coupled to the rear portion. The front panel assembly 120 and the rear panel assembly 130 include a stopper, a drive motor, etc., and are configured to fix and support the lead screw 200a. Therefore, when the lead screw 200a is rotated in the forward and reverse directions by the operation of the drive motor, the second rail portion 200 screwed to the front panel assembly 120 and the rear panel assembly 130 by the lead screw 200a can be rotated on the lead screw 200a (see Figure 2 ) slides and reciprocates in the longitudinal direction of the device.

[0057] However, in the rail connection structure including the first rail portion 100 and the second rail portion 200 of the above-mentioned structure, when the movable guide 131 is inserted into the mounting hole H, a gap may be generated between the inner peripheral surface of the mounting hole H and the outer peripheral surface of the movable guide 131, thereby causing noise and vibration when the second rail portion 200 slides.

[0058] Similarly, in the structure of the front panel assembly 120 and the rear panel assembly 130 configured to fix and support opposite ends of the lead screw 200a, noise and vibration may also occur due to a gap generated by the structure for supporting the lead screw 200a for rotation.

[0059] In order to reduce noise and vibration, the sliding transmission apparatus for a vehicle according to an exemplary embodiment of the present disclosure may include a damper 300, such as Figure 3 and Figure 4 shown.

[0060] The damper 300 is installed in the mounting hole H, and supports one end portion of the moving guide 131 inserted into the mounting hole H. Figure 7 As shown, one end is a rounded head 132 .

[0061] The damper 300 is made of an elastic material and has a circular shape in its initial state. When the damper 300 is installed in the mounting hole H, one side of the damper 300 may be deformed to be open, that is, one side thereof may be broken. As described above, the damper 300 installed in a just-in-time manner supports the head 132 of the moving guide 131 in the mounting hole H.

[0062] The damper 300 has a diameter corresponding to the inner diameter of the mounting hole H, and includes a structure surrounding and supporting the outer peripheral surface of the head 132 at the center portion of the mounting hole H.

[0063] Here, the damper 300 includes a predetermined height (and as shown in FIG. Figure 5 As shown in FIG. 1 , the damper includes a plurality of holes 300a formed radially (ie, in a height direction) from a central portion.

[0064] The holes 300 a may include a predetermined pattern and be regularly arranged in the damper 300 , or may each have a different size and be irregularly arranged in the damper 300 .

[0065] The hole 300a is used to achieve damping in its vertical and horizontal directions. The hole 300a absorbs impacts generated in the vertical and horizontal directions when the second rail part 200 slides along the first rail part 100, thereby reducing noise and vibration that may be generated when the second rail part 200 slides.

[0066] Furthermore, the hole 300a allows a lubricant (such as grease) applied to the head 132 to penetrate and be retained therein, enabling easy sliding movement even with a relatively small force.

[0067] In other words, when the second rail portion 200 slides in a state where the lubricant is applied to the head portion 132 and the damper 300 is in contact with the head portion 132 of the moving guide 131, the lubricant is configured to penetrate into the plurality of holes 300a by interfacial tension acting between the damper 300 and the moving guide 131, and then during the damping action of the sliding movement, the lubricant penetrated into the holes 300a is discharged to the outside and applied to the contact surface between the head portion 132 and the damper 300. Therefore, the friction force on the contact surface can be effectively reduced, in other words, the state where the lubricant is applied to the contact surface can be maintained, so that the second rail portion 200 can be easily slidably moved with a relatively small force.

[0068] Here, the damper 300 may be provided in plural such that at least one damper may be installed in the mounting hole H. The number of dampers 300 installed in the mounting hole H may increase as the weight of a structure such as a center console installed on the second rail portion 200 increases.

[0069] In an exemplary embodiment of the present disclosure, the damper 300 further includes a slot 300 b connecting the inner hole 300 c to the hole 300 a .

[0070] At the same time, if Fig. 9 and Fig.10 As shown, the front panel assembly 120 and the rear panel assembly 130 are provided with: a pair of support guides 122 configured to support opposite sides of the lead screw 200a ( Figure 8and a reducer 134, configured to reduce the speed of the drive motor, the drive motor M is configured to rotate the lead screw 200a ( Figure 8 Since the pair of support guides 122 and the speed reducer 134 are configured to fix and support the front and rear sides of the lead screw 200a in the front panel assembly 120 and the rear panel assembly 130, noise and vibration are generated while supporting the lead screw 200a for rotation, as described above.

[0071] For the present reason, the front panel assembly 120 and the rear panel assembly 130 may be provided with bearing members 122a and 134a. Here, the bearing members 122a and 134a are respectively installed in the support guide 122 and the reducer 134, and are axis-coupled to the outer peripheral surface of the lead screw 200a of the support guide 122 and the reducer 134.

[0072] The bearing members 122a and 134a may include the same structure as the damper 300. In other words, the bearing members 122a and 134a may each include a plurality of holes radially formed from a center portion thereof.

[0073] As a result, a pair of support guides 122 (configured to support the lead screw 200a) and a reducer 134 (including a drive motor M configured to transmit the operating torque to the second rail portion 200) are also respectively installed with bearing members 122a and 134a therein to offset the gap with the lead screw 200a in the installation area and allow the use of a hollow structure for damping, thereby effectively absorbing the noise and vibration generated by the lead screw 200a when the second rail portion 200 slides.

[0074] like Fig.11 As shown, the slide transmission device for a vehicle according to an exemplary embodiment of the present disclosure may further include a cable portion 400 and a cable body 500 .

[0075] The cable portion 400 is in electrical contact with the main wire W in the housing, which slides with the second rail portion 200 (as described above).

[0076] The cable portion 400 may include a connector member 410 and a draw-out member 420 .

[0077] The connector member 410 is disposed at each of opposite sides of the main wire W located on the second rail portion 200 , and is in electrical contact with the main wire W. As shown in FIG.

[0078] The connector member 410 includes a printed circuit board, and is configured to electrically connect the printed circuit board to the main wire W.

[0079] In addition, the draw-out member 420 is connected to the connector member 410 , extends in the left-right direction of the second rail part 200 , and is wound around the inside of the cable body 500 installed at each of opposite sides of the first rail part 100 .

[0080] The extraction member 420 may be a common flexible flat cable (FFC) made of a flexible flat cable, in which a solid wire layer including a plurality of conductors is embedded, and the common flexible flat cable may be deformed into various shapes. Therefore, the extraction member 420 may be disposed in a relatively narrow space, such as the space between the driver's seat and the passenger seat.

[0081] When the second rail portion 200 slides in the front-rear direction of the first rail portion 100 , the cable portion 400 wound inside the cable body 500 may be selectively pulled out or pulled in.

[0082] The cable main body 500 is mounted to the first rail part 100 by protruding from each of opposite sides of the first rail part 100 , and is shielded from the outside by a separate cover.

[0083] Furthermore, the cable main body 500 accommodates the cable portion 400 including the FFC therein and elastically supports the cable portion 400 .

[0084] In other words, the cable main body 500 provides elastic force in a direction to wind the cable portion 400 therein, maintaining tension even when the cable portion 400 is pulled out.

[0085] Therefore, when the second rail part 200 slides, the cable part 400 connected to the main wire W can be pulled out from the cable body 500 and the length of the cable part 400 can be adjusted relative to the sliding direction of the second rail part 200. Therefore, it is possible to prevent the quality problem that may occur when the length of the wire W becomes longer and thus causes interference to the surroundings or damages the main wire W.

[0086] As is apparent from the above description, the present disclosure provides the following effects.

[0087] According to an exemplary embodiment of the present disclosure, the sliding transfer device includes the following structure: the upper rail slides along the lower rail and the upper rail slides in the longitudinal direction of a movable guide protruding from the lower rail, and a bearing is installed inside a mounting hole, formed in the upper rail and the movable guide is inserted into the bearing, so that the bearing absorbs vibrations generated when the upper rail slides, thereby enabling stable sliding movement.

[0088] In addition, the bearing is also applied to a reducer of a lead screw configured to transmit an operating torque to an upper rail when a drive motor operates, thereby absorbing vibrations and compensating for shaft misalignment to prevent problems such as shaft distortion caused by vibrations.

[0089] In addition, when the upper rail slides in a state where the bearing is in contact with the movable guide, the lubricant that penetrates into the multiple through holes formed in the bearing by the interfacial tension acting between the bearing and the movable guide is discharged to the outside and is evenly applied to the contact surface between the bearing and the movable guide, thereby effectively reducing the friction on the contact surface, and thus being able to slide and move easily with relatively small force.

[0090] For ease of explanation and accurate definition of the appended claims, the terms "up", "down", "inside", "outside", "upward", "downward", "upwardly", "downwardly", "front", "back", "rear", "inside", "outside", "inwardly", "outwardly", "interior", "exterior", "interior", "exterior", "forward", and "rearward" are used to describe features of the exemplary embodiments with reference to the locations of such features as shown in the drawings. It should be further understood that the term "connected" or its derivatives refer to both direct and indirect connections.

[0091] The term "and / or" may include any combination of the multiple related listed items or the multiple related listed items. For example, "A and / or B" includes all three cases, such as "A", "B" and "A and B".

[0092] In this specification, unless otherwise stated, a singular expression includes a plural expression unless the context clearly indicates otherwise.

[0093] In an exemplary embodiment of the present invention, “at least one of A and B” may refer to “at least one of A or B” or “at least one of a combination of at least one of A and B”. Furthermore, “one or more of A and B” may refer to “one or more of A or B” or “one or more of a combination of one or more of A and B”.

[0094] In the exemplary embodiments of the present disclosure, it should be understood that terms such as “including” or “having” are intended to specify the presence of features, quantities, steps, operations, elements, parts, or a combination thereof described in the specification, and do not exclude the possibility of adding or existing one or more other features, quantities, steps, operations, elements, parts, or a combination thereof.

[0095] For the purpose of illustration and description, the foregoing descriptions of specific exemplary embodiments of the present disclosure have been presented. They are not intended to be exhaustive or to limit the present disclosure to the precise form disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. In order to illustrate certain principles of the present invention and their practical applications, exemplary embodiments have been selected and described to enable other persons skilled in the art to carry out and utilize various exemplary embodiments of the present disclosure and various substitutions and modifications thereof. The scope of the present disclosure is intended to be limited by the appended claims and their equivalents.

Claims

1. A sliding transmission device for a vehicle, the sliding transmission device include: a first rail portion fixed to the vehicle body; a second rail portion, the rail being coupled to the first rail portion to slide in a front-rear direction of the first rail portion, and the second rail portion being slidably coupled to a moving guide protruding from the first rail portion; as well as A damper is mounted in a mounting hole formed in the second rail portion and is configured to support the moving guide inserted into the mounting hole of the second rail portion.

2. The sliding transmission device according to claim 1, in, The moving guide extends from an upper surface of the first rail portion at an inclined angle and is inserted into the mounting hole of the second rail portion.

3. The sliding transmission device according to claim 1, in, The damper has a diameter corresponding to an inner diameter of the mounting hole, and wherein a center portion of the damper surrounds an outer peripheral surface of the moving guide.

4. The sliding transmission device according to claim 1, in, The damper includes a plurality of holes which are radially formed from a center portion of the damper and surround an outer peripheral surface of the moving guide.

5. The sliding transmission device according to claim 4, in, The damper also includes: an inner hole surrounding an outer peripheral surface of the moving guide; and A slot connects the inner bore to the plurality of holes.

6. The sliding transmission device according to claim 1, in, The damper includes an elastic material, and has one side opened to allow the moving guide to be positioned in a center portion of the damper.

7. The sliding transmission device according to claim 1, in, The damper is provided in plurality, and the plurality of dampers are installed in the installation hole.

8. The sliding transmission device according to claim 1, in, The first track portion includes a front panel assembly and a rear panel assembly configured to support a lead screw configured to transmit operating torque to the second track portion, and Wherein, the front panel assembly and the rear panel assembly include: a support guide configured to support the lead screw; a drive motor configured to rotate the lead screw; and a reducer configured to reduce the rotation speed of the drive motor.

9. The sliding transmission device according to claim 8, in, The front panel assembly and the rear panel assembly include bearing members which are respectively installed in the support guide and the speed reducer and are coupled to outer peripheral surfaces of the lead screws of the support guide and the speed reducer around an axis.

10. The sliding transmission device according to claim 9, in, The bearing member comprises an elastic material and includes a plurality of holes formed radially from a central portion thereof.

11. The sliding transmission device according to claim 1, further comprising: include: a cable portion connected to a main wire configured to slide with the second rail portion and in electrical contact with the main wire; as well as The cable body is configured to allow the cable portion to be selectively pulled out or pulled in when the second rail portion slides in the front-rear direction of the first rail portion.

12. The sliding transmission device according to claim 11, in, The cable portion comprises: a connector member in electrical contact with the main wire; and A draw-out member is connected to the connector member, extends in the left-right direction of the second rail portion, and is wound around an inside of the cable main body fixed to the first rail portion.

13. The sliding transmission device according to claim 12, in, The draw-out member is a flexible flat cable.

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