Sliding door driving mechanism

Abstract

According to the sliding door driving mechanism, the attractiveness, durability and easiness in installation of a vehicle can be improved. The sliding door driving mechanism is used for driving a sliding door to open and close and comprises a guide rail; a hinge; the door closing stay wire is connected with the end head of the door closing stay wire; the door opening pull wire is connected with the door opening pull wire end; the guide rail is provided with a baffle extending downwards relative to the sliding face, and the end of the door closing pull wire is arranged at the position where the door closing pull wire moves along the baffle when the end of the door closing pull wire is driven by the door closing pull wire in the vertical direction. And the end of the door opening stay wire is arranged in the vertical direction at a position where the door opening stay wire slides in the space above the sliding surface in the guide rail when the end of the door opening stay wire is driven by the door opening stay wire.

Description

Technical Field

[0001] The utility model relates to a sliding door driving mechanism, and in particular to a sliding door driving mechanism for a vehicle. Background Art

[0002] In the prior art, a sliding door drive mechanism for a vehicle is known, in which a motor drives a cable, thereby driving the sliding door using a hinge connected to a cable bracket to which the cable is fixed. For example, Patent Document 1 discloses a sliding door drive mechanism. To reduce the amount of intrusion of the front pulley seat into the vehicle interior space in the vehicle width direction, the front pulley seat and cable are arranged below the guide rail. Furthermore, a middle guide rail is provided on the inner side of the rear window glass, and a rear window trim is provided below the rear window glass. The rear window trim is fixed to the outer sheet metal of the vehicle body. The cable bracket that drives the cable passes through the gap between the rear window trim and the middle guide rail. A cable baffle is provided on the side of the middle guide rail facing away from the slide groove. The cable baffle extends below the middle guide rail, allowing the cable to move in the space formed below the middle guide rail and between the inner side of the rear window trim and the cable baffle.

[0003] Prior art literature

[0004] Patent document 1: Chinese invention patent CN116084790A.

[0005] However, the sliding door drive mechanism in Patent Document 1 has the following problems: first, since the pull wire baffle is set separately, the installation is complicated and the number of parts increases; second, there is a gap between the rear window trim and the guide rail. When observing from the front, the internal sheet metal structure can be observed through the gap, and the existence of the gap itself also affects the aesthetics of the vehicle; in addition, the pull wires used for opening and closing the door all move under the guide rail, and the door hinges connected to the pull wire bracket interfere with the rear window trim during the door opening and closing process. After a long period of operation, the rear window trim may cause deformation, wear, and dirt, affecting the aesthetics of the vehicle. Utility Model Content

[0006] The purpose of the utility model is to provide a sliding door driving mechanism that can improve the aesthetics, durability and ease of installation of a vehicle.

[0007] The sliding door driving mechanism of a technical solution of the present invention is used for driving the sliding door to open and close, and comprises: a guide rail, a front pulley seat is provided in front of the guide rail, and a rear pulley seat is provided behind the guide rail; a hinge, one end of which is connected to the sliding door, and a load-bearing wheel is provided at the other end of the hinge; a door closing cable, which is connected to the hinge through the door closing cable end and is guided by the front pulley provided on the front pulley seat; a door opening cable, which is connected to the hinge through the door opening cable end and is guided by the rear pulley provided on the rear pulley seat; and a motor, which is connected to the The door opening pull wire is connected to the door closing pull wire, driving the door opening pull wire or the door closing pull wire to pull the hinge, so that the load-bearing wheel slides back and forth along the sliding surface of the guide rail to drive the sliding door to open and close, and the guide rail has a baffle extending downward relative to the sliding surface, and the end of the door closing pull wire is arranged in the up and down direction at a position where the door closing pull wire moves along the baffle when driven by the door closing pull wire, and the end of the door opening pull wire is arranged in the up and down direction at a position where the door opening pull wire slides in the space above the sliding surface in the guide rail when driven by the door opening pull wire.

[0008] According to this technical solution, the guide rail has a baffle extending downward relative to the sliding surface, and the end of the door closing wire is arranged in the up and down directions at a position where the door closing wire moves along the baffle when driven by the door closing wire. The door opening wire moves in the space above the sliding surface in the guide rail, and the door closing wire moves along the baffle below the guide rail. That is, the guide rail with the baffle also serves as a wire baffle for the door closing wire, and there is no need to additionally produce a door closing wire baffle, thereby reducing the number of parts.

[0009] In the above technical solution, preferably, the baffle is formed by bending the guide rail.

[0010] Thus, the baffle can be formed by bending the plate forming the guide rail, without requiring additional parts or additional assembly work, thereby reducing the number of parts and improving ease of assembly.

[0011] In the above technical solution, preferably, a rubber strip is fixed to the baffle, and a pair of limiting ribs extending along the length direction of the rubber strip are provided on the rubber strip, and the door closing pull wire moves along the rubber strip between the pair of limiting ribs.

[0012] As a result, when viewing the vehicle's side from a level perspective, when the sliding door is closed, the door opening cable is hidden by the guide rail. When the sliding door is open, the door closing cable is exposed outside the rubber strip but is obscured by the sliding door itself, thus not affecting the vehicle's appearance. Furthermore, a simple structure such as a pair of limiting ribs effectively guides the movement of the door closing cable along the rubber strip. Furthermore, the hinge is located outside the rubber strip in the vehicle's width direction, avoiding direct contact with the strip, thus preventing deformation and excessive wear. Furthermore, the rubber strip also serves as a cable stop for the door closing cable, reducing the number of parts.

[0013] In the above technical solution, preferably, the rubber strip has a fixed portion and an extension portion, a recess is formed in the fixed portion, the rubber strip is fixed to the baffle by inserting the baffle into the recess, the extension portion extends from the lower end of the fixed portion to abut against the vehicle body sheet metal, and the door closing cable moves along the outer side surface of the fixed portion.

[0014] As a result, the rubber strip can be installed on the baffle in a simple manner, and since the rubber strip extends to abut the body sheet metal, when observing the side of the vehicle from a straight-ahead perspective, there is no gap between the rubber strip and the guide rail, and the internal sheet metal structure cannot be observed, which can improve the aesthetics.

[0015] In the above technical solution, preferably, a guide bracket is provided in front of the rubber strip, the guide bracket is fixed under the guide rail, and an opening for the door closing pull wire to enter and exit is provided on the guide bracket. After passing through the opening, the door closing pull wire moves along the rubber strip.

[0016] Therefore, since the guide bracket is arranged in front of the rubber strip, the door closing cable that bypasses the front pulley seat can be effectively guided to the rubber strip, and the front end of the rubber strip is protected from being worn by the door closing cable.

[0017] In the above technical solution, preferably, the guide bracket is provided with a locking portion, and the guide rail is provided with a locked portion, and the guide bracket is fixed to the guide rail by locking the locking portion and the locked portion.

[0018] Thus, the guide bracket is fixed to the guide rail by a snap-fit ​​method, which is simple to operate and saves work time. In addition, the guide bracket can be installed on the pull wire and delivered together during delivery.

[0019] In the above technical solution, preferably, a recessed portion is provided at a portion of the guide bracket that contacts the door closing wire, and lubricating grease is stored in the recessed portion.

[0020] Therefore, by arranging the recessed portion on the guide bracket, lubricating grease can be added to the recessed portion during maintenance, which is convenient to operate and can reduce the wear of the rubber strip.

[0021] In the above technical solution, preferably, a storage space is formed below the sliding surface of the guide rail and between the baffle, and a portion of the front pulley seat is disposed in the storage space.

[0022] In this way, the space below the guide rail can be effectively utilized to configure the front pulley seat, and the front pulley can be brought closer to the guide bracket, thereby reducing the possibility of interference between the door closing cable and other components.

[0023] In the above technical solution, preferably, the hinge is further provided with a guide wheel, which guides the movement of the hinge along the guide rail, and the end of the door opening cable is arranged below the guide wheel in a coaxial manner with the guide wheel.

[0024] Therefore, the door opening wire end can be installed by utilizing the shaft of the guide wheel, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a partial schematic diagram of a vehicle to which the sliding door driving mechanism of the present invention is applied.

[0026] Figure 2 It is a perspective view showing the sliding door driving mechanism according to this embodiment.

[0027] Figure 3 It is a side view showing the sliding door drive mechanism according to this embodiment.

[0028] Figure 4 It is a partial perspective view showing the sliding door driving mechanism according to the present embodiment.

[0029] Figure 5 It is a cross-sectional view showing the sliding door drive mechanism according to this embodiment.

[0030] Figure 6 It is a plan view showing the sliding door drive mechanism according to this embodiment.

[0031] Figure 7 It is a longitudinal sectional view showing the sliding door driving mechanism according to the present embodiment.

[0032] Figure 8 It is a perspective view showing the guide bracket according to this embodiment.

[0033] Figure 9 It is a perspective view showing the front end portion of the guide rail according to this embodiment.

[0034] Explanation of symbols

[0035] 1 vehicle

[0036] 2 car body

[0037] 2a Body sheet metal

[0038] 2s side

[0039] 10 Sliding door drive mechanism

[0040] 11 Upper guide rail

[0041] 12 middle guide rails (guide rails)

[0042] 12b fixed part

[0043] 13 lower guide rail

[0044] 15 sliding surface

[0045] 16 baffles

[0046] 17 guide rail cover

[0047] 18 rubber strips

[0048] 18a, 18b limiting ribs

[0049] 180 fixed part

[0050] 181 extension

[0051] 182 concavity

[0052] 21 upper hinge

[0053] 22 hinges (hinge)

[0054] 23 lower hinge

[0055] 24 load-bearing wheels

[0056] 25 guide wheel

[0057] 25s shaft

[0058] 3 Door opening

[0059] 4 car body

[0060] 5 front pulley seat

[0061] 51 front pulley

[0062] 6 rear pulley seat

[0063] 61 rear pulley

[0064] 7 motors

[0065] 8 Door closing pull cord

[0066] 80 door closing wire sleeve

[0067] 81 door closing wire end

[0068] 9 Door pull cord

[0069] 90 door pull wire sleeve

[0070] 91 door opening cable end

[0071] 88 guide bracket

[0072] 88a Opening

[0073] 88b Locking part

[0074] 88c recessed part

[0075] S Storage Space

[0076] X vehicle front and rear direction

[0077] Y vehicle width direction

[0078] Z is the vehicle's up and down direction. DETAILED DESCRIPTION

[0079] In the drawings, X indicates the vehicle front-rear direction, Y indicates the vehicle width direction, and Z indicates the vehicle up-down direction (vertical direction).

[0080] like Figure 1 As shown, the vehicle 1 of this embodiment includes a sliding door 4 for opening and closing a door opening 3 provided on the side 2s of the vehicle body 2. Specifically, the vehicle 1 is provided with a plurality of guide rails (upper guide rail 11, middle guide rail 12, lower guide rail 13) extending in the vehicle longitudinal direction X, and a plurality of hinges (upper hinge 21, middle hinge 22, lower hinge 23) connected to these guide rails. In other words, the sliding door 4 of this embodiment is supported on the side 2s of the vehicle body 2 via these guide rails and hinges. Furthermore, the hinges move relative to the guide rails in the direction in which the guide rails extend, thereby allowing the sliding door 4 of this embodiment to move in the vehicle longitudinal direction X while remaining along the side 2s of the vehicle body 2.

[0081] That is, the sliding door 4 of this embodiment is opened toward the front side of the vehicle ( Figure 1 The door opening 3 is fully closed by moving toward the rear of the vehicle (the right side in the figure) and fully opened to allow passengers of the vehicle 1 to board and disembark through the door opening 3. Furthermore, the vehicle 1 of this embodiment is provided with a sliding door drive mechanism 10 that opens and closes the sliding door 4 based on a driving force generated by an actuator driven by a motor 7.

[0082] The sliding door drive mechanism 10 of this embodiment is applied to the middle guide rail 12 (an example of the guide rail claimed in the present invention). Figures 2 to 9The sliding door driving mechanism 10 will be described in detail.

[0083] The sliding door driving mechanism 10 for driving the sliding door 4 to open and close includes a guide rail 12 , a hinge 22 , a door closing cable 8 , a door opening cable 9 and a motor 7 .

[0084] A front pulley seat 5 is provided in front of the guide rail 12. More specifically, see Figure 5 、 6 9, a front pulley seat 5 is provided on the vehicle inner side of the curved portion of the front end of the guide rail 12 that curves inward in the vehicle width direction Y, and a front pulley 51 is provided on the front pulley seat 5. A rear pulley seat 6 is provided at the rear of the guide rail 12, see Figure 6 The rear pulley seat 6 is located behind the rear end of the guide rail 12 in the vehicle front-rear direction X but is arranged close to the rear end of the guide rail 12. A rear pulley 61 is provided on the rear pulley seat 6. In the present utility model, the rear pulley seat 6 is provided behind the guide rail 12 as long as the rear pulley seat 6 is provided on the rear side of the guide rail 12 relative to the front pulley seat 5. The rear pulley seat 6 does not necessarily need to be located behind the guide rail 12 in the front-rear direction.

[0085] See also Figure 7 The guide rail 12 has a baffle 16 extending downward relative to the sliding surface 15, and the baffle 16 is formed by bending the guide rail 12. Specifically, the guide rail 12 is formed by bending a plate to form the sliding surface 15 on which the load-bearing wheel 24 provided on the hinge 22 slides, and the baffle 16 extending downward from the sliding surface 15 in the vehicle vertical direction Z.

[0086] Furthermore, a rubber strip 18 is fixed to the baffle 16. The rubber strip 18 has a fixing portion 180 and an extension portion 181. A recess 182 is formed in the fixing portion 180. The baffle 16 is inserted into the recess 182 to fix the rubber strip 18 to the baffle 16. The extension portion 181 extends from the lower end of the fixing portion 180 to abut against the vehicle body sheet metal 2a. For more details, see Figure 7 The extension portion 181 extends downward from the lower end of the fixing portion 180, slanting outward in the vehicle width direction Y, and ultimately abuts the upper surface of the body sheet metal 2a. Because the rubber strip 18 abuts the body sheet metal 2a in this manner, when viewed from the outside of the vehicle, there is no gap between the rubber strip 18 and the body sheet metal 2a due to the abutment, and the body sheet metal 2a on the inside of the vehicle is not exposed.

[0087] The rubber strip 18 is provided with a pair of limiting ribs 18a and 18b extending along its length. The door closing cable 8, described below, moves between the limiting ribs 18a and 18b along the rubber strip 18. Since the door closing cable 8 moves along the outer side of the fixing portion 180, the rubber strip 18 covers the fixing portion 180 in its length direction, corresponding to the entire travel of the door closing cable 8.

[0088] One end of the hinge 22 is connected to the sliding door 4. More specifically, one end of the hinge 22 is pivotally connected to the sliding door 4. A load-bearing wheel 24 is provided at the other end of the hinge 22, and a guide wheel 25 is provided at the hinge 22 to guide the movement of the hinge 22 along the guide rail 12. In addition, a door opening cable end 91 and a door closing cable end 81 are provided at the hinge 22. The door closing cable 8 is connected to the hinge 22 through the door closing cable end 81 and is guided by the front pulley 51. Specifically, the door closing cable 8 is installed on the door closing cable end 81, and the door closing cable end 81 is installed on the hinge 22. The door opening cable 9 is connected to the hinge 22 through the door opening cable end 91 and is guided by the rear pulley 61. Specifically, the door opening cable 9 is installed on the door opening cable end 91, and the door opening cable end 91 is installed on the hinge 22. The door opening wire end 91 is arranged below the guide wheel 25 in a coaxial manner with the guide wheel 25. More specifically, the door opening wire end 91 and the guide wheel 25 have the same axis 25s.

[0089] More specifically, a door closing wire end mounting component for mounting the door closing wire end 81 is provided on the hinge 22. The door closing wire end mounting component is, for example, an axis provided in a manner protruding from the hinge 22. The door closing wire 8 is mounted on the door closing wire end 81. The door closing wire end 81 is mounted on the door closing wire end mounting component and is connected to the hinge 22.

[0090] In addition, a door opening pull wire terminal mounting component for mounting the door opening pull wire terminal 91 is provided on the hinge 22. The door opening pull wire terminal mounting component is, for example, an axis provided in a manner protruding from the hinge 22 (as described above, in this embodiment, the axis of the door opening pull wire terminal mounting component is coaxial with the axis 25s of the guide wheel 25). The door opening pull wire 9 is mounted on the door opening pull wire terminal 91, and the door opening pull wire terminal 91 is mounted on the door opening pull wire terminal mounting component and connected to the hinge 22.

[0091] The door closing wire end 81 is arranged in the vehicle up-down direction Z at a position where the door closing wire 8 moves along the baffle 16 when driven by the door closing wire 8, and the door opening wire end 91 is arranged in the vehicle up-down direction Z at a position where the door opening wire 9 slides in the space above the sliding surface 15 in the guide rail 12 when driven by the door opening wire 9.

[0092] Specifically, see Figure 7 One end of the hinge 22 extends to the outside of the guide rail cover 17 (which may also be a window glass) and is connected to the sliding door 4 via a connecting mechanism (not shown). A load-bearing wheel 24 is provided at the other end of the hinge 22, and a guide wheel 25 is provided above the load-bearing wheel 24. The guide wheel 25 slides in a guide groove in the guide rail 12, ensuring that the load-bearing wheel 24 slides along the sliding surface 15 without deviating from the guide rail 12.

[0093] The door opening wire 9 drives the door opening wire end 91 which is coaxially arranged below the guide wheel 25 to pull the hinge 22 to move, and the door opening wire 9 slides along the inner side surface of the guide rail 12 in the vehicle width direction Y.

[0094] The door closing cable 8 drives the door closing cable end 81 which is arranged below the load-bearing wheel 24 in the vehicle vertical direction Z and outside in the vehicle width direction Y to pull the hinge 22 to move, and the door closing cable 8 moves along the rubber strip 18.

[0095] See also Figure 4 、 8 A guide bracket 88 is provided in front of the rubber strip 18 and is fixed below the guide rail 12. An opening 88a is provided in the guide bracket 88 for the door closing cable 8 to enter and exit. After passing through the opening 88a, the door closing cable 8 moves along the rubber strip 18. Thus, the guide bracket 88 smoothly guides the door closing cable 8 to the moving surface between the limiting ribs 18a and 18b on the rubber strip 18.

[0096] The guide bracket 88 is provided with a locking portion 88b, and the guide rail 12 is provided with a locked portion 12b. The locking portion 88b and the locked portion 12b are locked to fix the guide bracket 88 to the guide rail 12. The locking portion 88b is, for example, a claw, and the locked portion 12b is, for example, an opening.

[0097] A recessed portion 88c is provided at the portion of the guide bracket 88 that contacts the door closing cable 8, and lubricating grease is stored in the recessed portion 88c. Figure 4 The recessed portion 88 c is a structure that is recessed from the outside to the inside in the vehicle width direction Y. By storing lubricating grease in the recessed portion 88 c, the door closing cable 8 can be effectively lubricated.

[0098] See also Figure 9 A storage space S is formed below the sliding surface 15 of the guide rail 12 and between the baffle 16, and a portion of the front pulley seat 5 is arranged in the storage space S. In this embodiment, the storage space S is close to the opening 88a of the guide bracket 88, and the door closing cable 8 led out from the front pulley 51 can be directly introduced into the guide bracket 88 without interfering with other components, and then guided to the rubber strip 18 after further lubrication.

[0099] The door closing cable 8 is led out through the door closing cable sleeve 80 and is led to the front pulley 51 . After being guided by the front pulley 51 , it continues to pass through the guide bracket 88 and is connected to the door closing cable end 81 to be installed on the hinge 22 .

[0100] The door opening wire 9 is led out through the door opening wire sleeve 90 and is led to the rear pulley 61 . After being guided by the rear pulley 61 , it is connected to the door opening wire end 91 and is installed on the hinge 22 .

[0101] The motor 7 is connected to the door opening cable 9 and the door closing cable 8. The motor 7 drives the actuator, which drives the door closing cable 8 or the door opening cable 9, thereby driving the bearing wheel 24 of the hinge 22 connected to the door closing cable 8 and the door opening cable 9 to slide back and forth along the sliding surface 15 of the guide rail 12, thereby driving the sliding door 4 to open and close. Figure 6 2 shows the front and rear range in which the hinge 22 can move along the guide rail 12 .

[0102] When observing the side of the vehicle from a level perspective, when the sliding door 4 is closed, the door opening cable 9 is located in the guide rail 12 and is blocked by the guide rail cover 17. When the sliding door 4 is opened, the door closing cable 8 is exposed on the outside of the rubber strip 18, but will be blocked by the sliding door 4 itself, so the appearance of the vehicle is good.

[0103] In addition, since the door closing cable end 81 is located on the outside of the rubber strip 18 in the vehicle width direction Y, the door closing cable end 81 can be easily designed so that the door closing cable end 81 will not be in direct contact with the rubber strip 18 during movement, and will not cause deformation and excessive wear of the rubber strip 18.

[0104] While preferred embodiments of the present invention have been described above, various modifications are possible in these embodiments.

[0105] For example, in the above embodiment, the sliding door driving mechanism is shown as being used in a vehicle, but the present invention is not limited thereto, and the sliding door driving mechanism can be applied to any sliding door.

[0106] For example, in the above embodiment, the sliding door 4 that opens rearward is shown, but the present invention is not limited thereto, and the sliding door 4 may also be a sliding door that opens forward.

[0107] For example, in the above embodiment, a recess 182 is formed in the fixing portion 180 of the rubber strip 18, and the baffle 16 is inserted into the recess 182 to fix the rubber strip 18 to the baffle 16. However, the present invention is not limited to this. The fixing portion 180 and the extending portion 181 of the rubber strip 18 may be a whole sheet-type rubber strip, and the fixing portion 180 may be bonded and fixed to the outer surface of the vehicle side of the baffle 16 by an adhesive.

[0108] For example, in the above embodiment, a structure is shown in which a locking portion 88b is provided on the guide bracket 88 and a locked portion 12b is provided on the guide rail 12, but the present invention is not limited to this. It can also be a structure in which a locked portion is provided on the guide bracket and a locking portion is provided on the guide rail.

[0109] For example, in the above embodiment, a structure in which the hinge and the cable end bracket are integrated is shown, but the present invention is not limited thereto, and the hinge may also be a structure that is separate from the cable end bracket.

[0110] The present invention has been described above with reference to a specific example. However, the present invention is not limited to this specific example. Any design obtained by a person skilled in the art by making appropriate design changes to this specific example, as long as it has the characteristics of the present invention, is also included in the scope of the present invention.

Claims

1. A sliding door drive mechanism for driving a sliding door to open and close, characterized in that: have: A guide rail, wherein a front pulley seat is provided in front of the guide rail and a rear pulley seat is provided behind the guide rail; a hinge, one end of which is connected to the sliding door, and a load-bearing wheel is provided at the other end of the hinge; a door closing cable connected to the hinge via a door closing cable end and guided by a front pulley provided on the front pulley seat; a door opening cable connected to the hinge via a cable end and guided by a rear pulley provided on the rear pulley seat; as well as A motor is connected to the door opening cable and the door closing cable, driving the door opening cable or the door closing cable to pull the hinge, so that the load-bearing wheel slides back and forth along the sliding surface of the guide rail to drive the sliding door to open and close. The guide rail has a baffle extending downward relative to the sliding surface, and the end of the door closing pull wire is arranged in the up and down directions at a position where the door closing pull wire moves along the baffle when driven by the door closing pull wire, and the end of the door opening pull wire is arranged in the up and down directions at a position where the door opening pull wire slides in the space above the sliding surface in the guide rail when driven by the door opening pull wire.

2. The sliding door drive mechanism according to claim 1, wherein: The baffle is formed by bending the guide rail.

3. The sliding door driving mechanism according to claim 1, wherein: A rubber strip is fixed to the baffle, and a pair of limiting ribs extending along the length direction of the rubber strip are provided on the rubber strip, and the door closing cable moves between the pair of limiting ribs along the rubber strip.

4. The sliding door driving mechanism according to claim 3, wherein: The rubber strip has a fixed portion and an extending portion, wherein a recess is formed in the fixed portion. The rubber strip is fixed to the baffle by inserting the baffle into the recess. The extending portion extends from the lower end of the fixed portion to abut against the vehicle body sheet metal, and the door closing cable moves along the outer side surface of the fixed portion.

5. The sliding door driving mechanism according to claim 3, wherein: A guide bracket is provided in front of the rubber strip, and the guide bracket is fixed below the guide rail. An opening for the door closing cable to enter and exit is provided on the guide bracket. After passing through the opening, the door closing cable moves along the rubber strip.

6. The sliding door driving mechanism according to claim 5, wherein: The guide bracket is provided with a locking portion, and the guide rail is provided with a locked portion. The guide bracket is fixed to the guide rail by locking the locking portion and the locked portion.

7. The sliding door driving mechanism according to claim 5, wherein: A recessed portion is provided at a portion of the guide bracket that contacts the door closing wire, and lubricating grease is stored in the recessed portion.

8. The sliding door driving mechanism according to claim 1, wherein: A storage space is formed between the lower portion of the sliding surface of the guide rail and the baffle, and a portion of the front pulley seat is disposed in the storage space.

9. The sliding door driving mechanism according to any one of claims 1 to 8, wherein: The hinge is further provided with a guide wheel, which guides the hinge to move along the guide rail. The door opening cable end is arranged below the guide wheel in a coaxial manner with the guide wheel.

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