Upper sliding rail structure and upper sliding rail system of sliding door

Abstract

The utility model provides a sliding door upper sliding rail structure and an upper sliding rail system, and belongs to the technical field of automobiles, and the sliding door upper sliding rail structure comprises an upper sliding rail and a rear support. The rear end of the upper sliding rail is connected with a rear support, and a feeding opening allowing the rollers of the upper hinge to pass through is formed in the lower end of the upper sliding rail and located in the front side of the rear support. According to the upper sliding rail structure of the sliding door, the feeding opening is formed in the bottom of the upper sliding rail, and the feeding opening is formed in the front side of the rear support; when entering the upper slide rail through the input port, the roller does not need to pass through the joint of the rear bracket and the upper slide rail, so that the roller is prevented from being in contact with the cut edge of the metal plate at the end part of the upper slide rail, the rolling surface of the roller is prevented from being collided, and the problem of abnormal rolling sound caused by pits on the surface of the roller is solved; due to the fact that the assembly positions of the idler wheels of the upper hinge are changed, the rear support can be shortened and optimized, the size of the rear support of the upper sliding rail is reduced, and the weight is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, and more specifically, it relates to a sliding door upper rail structure and upper rail system. Background Technology

[0002] Sliding doors use a pulley mechanism to move the door along the vehicle body's guide rails, moving as a whole along a trajectory to open and close the door.

[0003] Sliding door retainers are components that connect the sliding door to the vehicle body, including the upper hinge, middle hinge, lower hinge, and the upper, middle, and lower slide rails or other supporting parts of the sliding door. Among them, the slide rail is a key component of the sliding door retainer, which not only directly affects the smoothness of the sliding door's movement, but also plays a decisive role in passing the regulatory tests for sliding door retainers.

[0004] In existing sliding door assembly, the rear end of the upper sliding rail is connected to a rear bracket for sealing the upper sliding rail. An insertion port is located at the end of the rear bracket, through which the upper hinge roller moves left and right into the sliding rail. Because there is a sheet metal cut edge at the interface between the upper sliding rail and the rear bracket, the roller, after entering the rear bracket through the insertion port and then moving forward to the upper sliding rail, will collide with the sheet metal cut edge of the upper sliding rail during this movement, causing dents on the roller's surface. When the sliding door opens and closes, the upper hinge roller will make abnormal rolling noise due to these dents. Utility Model Content

[0005] The purpose of this utility model is to provide a sliding door upper rail structure and upper rail system, which aims to solve the problem of the rollers being bumped during the assembly of the upper hinge, resulting in abnormal noise when the rollers roll.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sliding door upper rail structure and upper rail system are provided, including an upper rail and a rear support; the rear end of the upper rail is connected to the rear support, and the lower end of the upper rail is provided with an access port that allows the roller of the upper hinge to pass through, and the access port is located on the front side of the rear support.

[0007] The beneficial effects of the sliding door upper slide rail structure provided by this utility model are as follows: Compared with the prior art, the insertion port of the sliding door upper slide rail structure of this utility model is located on the front side of the rear support. When the roller enters the upper slide rail through the insertion port, it does not need to pass through the connection between the rear support and the upper slide rail. Moreover, when entering the insertion port, the roller is located in the center of the insertion port. During the process of moving laterally into the upper slide rail, it is always in the center line of the upper slide rail, avoiding contact between the roller and the sheet metal, preventing the rolling surface of the roller from being bumped, and solving the problem of abnormal rolling noise caused by pits on the surface of the roller.

[0008] In another embodiment of this application, the upper slide rail is a U-shaped structure with the opening facing downwards. The opening end of the U-shaped structure has an inwardly bent edge structure. The bent edge structure cooperates with the U-shaped structure to form a channel for accommodating the movement of the roller. The inlet is opened on the bent edge structure below the channel.

[0009] The advantage of this embodiment is that it facilitates the assembly of the rollers.

[0010] In another embodiment of this application, two clearance notches are provided on the lower part of the two side plates of the upper slide rail, and the two clearance notches are connected to the input port.

[0011] The beneficial effect of this embodiment is that it reduces the probability of the rollers bumping into each other when passing through the inlet, and makes it easier for the rollers to enter the upper slide rail smoothly.

[0012] In another embodiment of this application, the cross-section of the inlet is rectangular, and the length of the inlet is greater than the width of the inlet.

[0013] The beneficial effect of this embodiment is that it increases the length of the inlet and reduces the probability of the rollers bumping into each other when passing through the inlet.

[0014] In another embodiment of this application, the length of the inlet is at least 20 mm greater than the diameter of the roller.

[0015] The beneficial effect of this embodiment is that it allows sufficient space to flow on both sides of the roller.

[0016] In another embodiment of this application, the rear bracket is U-shaped, with two side plates of the rear bracket respectively attached to the side plate portions on both sides of the upper slide rail, and the closed end of the rear bracket attached to the top of the upper slide rail. At least one of the side plates has an extension on its rear side, and the extension is horizontally bent to block the end of the upper slide rail.

[0017] The beneficial effect of this embodiment is that the extension is bent laterally to form a sealing structure, which closes the end of the upper slide rail.

[0018] In another embodiment of this application, both side plates have the extension portion, and the two extension portions are arranged in an overlapping manner.

[0019] The beneficial effect of this embodiment is that the two overlapping extensions further improve the support strength of the rear bracket at the end of the upper slide rail.

[0020] In another embodiment of this application, the rear support has an extension section between it and the inlet.

[0021] The beneficial effect of this embodiment is that the extension section provides installation space for the upper hinge, improving the ease of assembly.

[0022] As another embodiment of this application, the top plate of the extension section has mounting holes.

[0023] The beneficial effect of this embodiment is that the mounting holes are used for bolts or rivets to pass through, so as to fix the upper slide rail to the vehicle body structure.

[0024] A sliding rail system is also provided, characterized in that it includes the above-mentioned sliding door sliding rail structure, and further includes an upper hinge, wherein a pin is connected to the end of the upper hinge, and a roller is connected to the upper end of the pin; the roller enters the upper sliding rail from the insertion port and slides in cooperation with the upper sliding rail.

[0025] The advantages of the upper sliding rail system provided by this utility model are as follows: Compared with the prior art, the upper sliding rail system of this utility model adopts the above-mentioned upper sliding rail structure of the sliding door and has all its advantages; the upper sliding rail and the upper hinge slide together, and the roller is connected to the end of the upper hinge by means of a pin. The upper hinge drives the roller to enter the channel inside the upper sliding rail through the inlet. After entering the channel inside the upper sliding rail, the roller slides together with the upper sliding rail; when the roller enters the upper sliding rail from bottom to top through the inlet, it does not need to pass through the rear end of the upper sliding rail, and when entering the inlet, the roller is located in the center of the inlet. During the process of moving laterally into the upper sliding rail, it is always in the center line of the upper sliding rail, avoiding contact between the roller and the sheet metal, preventing the rolling surface of the roller from being bumped, and solving the problem of abnormal rolling noise caused by the surface pit of the roller; the rear bracket can be shortened and optimized to reduce the size of the rear bracket of the upper sliding rail and reduce the weight. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the upper slide rail structure of the sliding door provided in an embodiment of the present utility model;

[0028] Figure 2 A bottom view of the upper slide rail structure of the sliding door provided in this embodiment of the utility model;

[0029] Figure 3 A front view of the upper slide rail system provided in an embodiment of this utility model;

[0030] Figure 4 A first sectional view of the upper slide rail system provided in an embodiment of this utility model;

[0031] Figure 5 This is a second cross-sectional view of the upper slide rail system provided in an embodiment of the present utility model.

[0032] In the diagram: 1. Upper slide rail; 2. Rear bracket; 3. Mounting hole; 4. Pin; 5. Input port; 6. Extension; 7. Extension section; 8. Roller; 9. Folded edge structure. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] Please see Figures 1 to 5 The sliding door upper rail structure and upper rail system provided by this utility model will now be described. The upper rail structure of the sliding door includes an upper rail 1 and a rear support 2; the rear end of the upper rail 1 is connected to the rear support 2, and the lower end of the upper rail 1 has an inlet 5 that allows the roller 8 of the upper hinge to pass through, and the inlet 5 is located on the front side of the rear support 2.

[0035] Compared with the prior art, the sliding door upper slide rail structure provided by this utility model has an upper slide rail 1 horizontally arranged along the X-axis direction. The upper slide rail 1 is used to connect the roller 8 of the upper hinge, so that the roller 8 can move horizontally along the upper slide rail 1. To facilitate the installation of the roller 8, an insertion port 5 is provided at the bottom of the upper slide rail 1, and the insertion port 5 is located on the front side of the rear bracket 2. Unlike the prior art where the insertion port is located on the rear bracket 2, when the roller 8 enters the upper slide rail 1 through the insertion port 5 at the bottom of the upper slide rail 1, the center line of the roller 8 coincides with the center line of the upper slide rail 1. Then the roller 8 moves laterally into the upper slide rail 1, avoiding contact with the sheet metal at the end of the upper slide rail 1, preventing the rolling surface of the roller 8 from being bumped, and solving the problem of abnormal rolling noise caused by pits on the surface of the roller 8.

[0036] In addition, the rear bracket 2 is located at the end of the upper slide rail 1 and is mainly used to limit the movement trajectory of the roller 8. Since the assembly position of the roller 8 of the upper hinge has changed, it is not necessary to open an opening at the rear end of the rear bracket 2. Therefore, the rear bracket 2 can be shortened and optimized, reducing the size of the rear bracket 2 of the upper slide rail 1 and reducing the weight.

[0037] The length direction of the slide rail 1 is the X direction, the width direction is the Y direction, and the height direction is the Z direction.

[0038] The upper slide rail 1 is fixed to the vehicle body structure. Both ends of the upper slide rail 1 need to be fixed and sealed with brackets. The end of the upper slide rail 1 closest to the C-pillar cavity of the side wall is the rear end, and the bracket sealing the rear end of the upper slide rail 1 is the rear bracket 2. The inlet 5 is opened on the lower end face of the upper slide rail 1, avoiding the rear bracket 2 and preventing an opening on the rear bracket 2. The roller 8 enters the upper slide rail 1 from bottom to top through the inlet 5 and slides in cooperation with the upper slide rail 1.

[0039] In some possible embodiments, please refer to Figure 1 , Figure 2 and Figure 4 The upper slide rail 1 is a U-shaped structure with the opening facing downwards. At the opening end of the U-shaped structure, there is a folded edge structure 9 that bends inwards. The folded edge structure 9 and the U-shaped structure cooperate to form a channel for accommodating the movement of the roller 8. The inlet 5 is opened on the folded edge structure 9 below the channel.

[0040] The top of the U-shaped upper slide rail 1 is fixed to the vehicle body structure. The opening of the upper slide rail 1 faces downwards, and the edge is folded inwards at the opening to form a folded edge structure 9. The folded edge structure 9 cooperates with the main structure of the U-shaped upper slide rail to form a channel. The roller 8 enters the channel through the inlet 5 and moves along the length of the channel.

[0041] To facilitate the entry of the roller 8 into the channel of the upper slide rail 1 through the inlet 5, the inlet 5 is located at the bottom of the upper slide rail 1, i.e. on the folded edge structure 9.

[0042] Specifically, a notch is provided on the folded edge structure 9, which exposes the lower part of the channel, forming an insertion port 5. Due to the notch on the folded edge structure 9, the roller 8 can smoothly enter the channel of the upper slide rail 1.

[0043] Optionally, two clearance notches are provided at the lower part of the side plates on both sides of the upper slide rail 1, and the two clearance notches are connected to the inlet 5. The two clearance notches are symmetrically arranged so that the center line of the inlet 5 coincides with the center line of the channel of the upper slide rail 1.

[0044] The folded edge structure 9 is located at the lower end of the upper slide rail main body structure. A gap is formed between the folded edge structures 9 on both sides to allow the pin shaft 4 connected to the roller 8 to pass through. The gap width between the folded edge structures is smaller than the diameter of the roller 8, so the roller 8 cannot disengage from the upper slide rail through the gap.

[0045] During installation, the roller 8 is first driven by the upper hinge into the lower part of the inlet 5, and is held in the center of the inlet 5 to prevent it from hitting the edge of the inlet 5 as it passes through it from bottom to top. After entering the channel of the upper slide rail 1, the upper hinge moves laterally, and the roller 8 enters the channel and is limited by the folded edge structure 9 at the lower end of the upper slide rail 1. The pin 4 connecting the roller 8 and the upper hinge is located in the gap between the two folded edge structures 9.

[0046] The inlet 5 has a rectangular cross-section, and its length is greater than its width. The length of the inlet 5 is aligned with the length of the upper slide rail 1, and its width is also aligned with the width of the upper slide rail 1. To reduce the probability of the roller 8 colliding with the inlet 5, the inlet 5 is enlarged as much as possible. Optionally, the length of the inlet 5 is at least 20mm greater than the diameter of the roller 8. When the roller 8 passes through the inlet 5, it is located at the center of the inlet 5, and the distance between the edge of the roller 8 and the two edges of the inlet 5 along its length is at least 10mm.

[0047] During installation, the upper slide rail 1 is mounted on the vehicle body, and the upper hinge is mounted on the door body. After the door body and vehicle body are installed, the upper hinge slides in conjunction with the upper slide rail, and the roller 8 of the upper hinge is located inside the upper slide rail and slides in conjunction with it. Because there are supporting structures such as support rails between the door body and the vehicle body, after installation, the roller 8 of the upper hinge is positioned in the middle of the upper slide rail 1 in the height direction, with a gap between its lower end and the folded edge structure 9 at the lower end of the upper slide rail 8. Under the action of the supporting structure, the roller 8 of the upper hinge is located in the middle of the upper slide rail 1 and moves along the length of the upper slide rail 1.

[0048] In some possible embodiments, please refer to Figure 1 The rear bracket 2 is U-shaped. The two side plates of the rear bracket 2 are respectively attached to the side plate portions on both sides of the upper slide rail 1. The closed end of the rear bracket 2 is attached to the top of the upper slide rail 1. At least one side plate has an extension 6 on its rear side. The extension 6 is horizontally bent to block the end of the upper slide rail 1.

[0049] The rear bracket 2 covers the rear end of the upper slide rail 1, and the structure of the rear bracket 2 is the same as that of the front bracket. The rear bracket 2 has a U-shaped structure, and the closed end of the rear bracket 2 is attached to the top of the upper slide rail 1. The two side plates of the rear bracket 2 are located on both sides of the top closed end and are bent downward. The side plates are attached to the side plate part of the upper slide rail 1, but the lower edge of the side plate does not extend beyond the lower end of the upper slide rail 1.

[0050] To achieve closure of the end of the upper slide rail 1, the two side plates of the rear bracket 2 have extensions 6 extending rearward in the X direction at the rear end that fits against the upper slide rail 1. The extensions 6 are laterally bent to form a sealing structure that closes the end of the upper slide rail 1.

[0051] The extension 6 can be one or two. When there is one extension 6, it is located on either side plate, bent laterally at 90°, and its length is not less than the width of the upper slide rail 1. When there are two extensions 6, they are located on two side plates respectively, bent at 90° towards each other, and overlapped, completely closing the end of the upper slide rail 1 after overlapping. The two overlapping extensions 6 further enhance the support strength of the rear bracket 2 at the end of the upper slide rail 1.

[0052] When there are two extensions 6, the length of each extension 6 is greater than or equal to half the width of the upper slide rail 1. When the length of the extension 6 is greater than half the width of the upper slide rail 1, one extension 6 is first bent and fitted to the end of the upper slide rail 1, and then the second extension 6 is bent, fitting against the outer wall of the first extension 6. The two extensions 6 overlap to completely seal the port of the upper slide rail 1. When the length of the extension 6 is equal to half the width of the upper slide rail 1, both extensions 6 need to be bent simultaneously, with the edges of the bent extensions 6 fitting together. The two extensions 6 completely seal the port of the upper slide rail 1 with their end faces fitting together.

[0053] During installation, it is only necessary to connect and fix the side plate of the rear bracket 2 to the upper slide rail 1. The extension 6 is integrally formed with the side plate of the rear bracket 2 and does not need to be connected to the upper slide rail 1 or the top of the rear bracket 2.

[0054] The rear bracket 2 is only used to connect to the upper slide rail 1, and there is no need to consider opening an opening to allow the roller 8 to pass through, so the length and volume of the rear bracket 2 can be reduced. The side plate of the rear bracket 2 is only used for fixed connection with the upper slide rail 1, and the extension 6 of the rear bracket 2 is used to block the port of the upper slide rail 1.

[0055] In some possible embodiments, please refer to Figure 1 The rear bracket 2 has an extension section 7 between it and the inlet 5. The rear bracket 2 is installed at the rear end of the upper slide rail 1, and the front side of the rear bracket 2 is the extension section 7 of the upper slide rail 1. This extension section 7 provides installation space for the upper hinge and improves the ease of assembly.

[0056] The top plate of the extension 7 of the upper slide rail 1 has mounting holes 3. The mounting holes 3 are for bolts or rivets to pass through, so as to fix the upper slide rail 1 to the vehicle body structure.

[0057] Please see Figures 1 to 5 The system also provides an upper sliding rail system, including the above-mentioned upper sliding rail structure of the sliding door, and an upper hinge. The end of the upper hinge is connected to a pin 4, and the upper end of the pin 4 is connected to a roller 8. The roller 8 enters the upper sliding rail 1 from the inlet 5 and slides in cooperation with the upper sliding rail 1.

[0058] The sliding rail system provided by this utility model, compared with the prior art, adopts the above-mentioned upper sliding rail structure of the sliding door and has all its beneficial effects; the upper sliding rail 1 is slidably engaged with the upper hinge, and the roller 8 is connected to the end of the upper hinge by means of a pin 4. The upper hinge drives the roller 8 to enter the channel inside the upper sliding rail 1 through the inlet 5. After entering the channel inside the upper sliding rail 1, the roller 8 is slidably engaged with the upper sliding rail 1; when the roller 8 enters the upper sliding rail 1 through the inlet 5, it does not need to pass through the connection between the rear bracket 2 and the upper sliding rail 1 again, thus avoiding the roller 8 from contacting the upper sliding rail. The sheet metal cut-edge contact at the end of 1 prevents the rolling surface of roller 8 from being bumped. When entering the inlet, the roller is located in the center of the inlet. During the lateral movement into the upper slide rail, it is always in the center line of the upper slide rail, avoiding contact between the roller and the sheet metal. This solves the problem of abnormal rolling noise caused by pits on the surface of roller 8. In addition, since the assembly position and assembly method of roller 8 of the upper hinge have changed, it is not necessary to open a through-hole on the rear bracket 2. Therefore, the rear bracket 2 can be shortened and optimized, reducing the size of the rear bracket 2 of the upper slide rail 1 and reducing the weight.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding door upper track structure, characterized in that, It includes an upper slide rail (1) and a rear support (2); the rear end of the upper slide rail (1) is connected to the rear support (2), and the lower end of the upper slide rail (1) is provided with an inlet (5) that allows the roller (8) of the upper hinge to pass through, and the inlet (5) is located on the front side of the rear support (2).

2. The sliding door upper slide rail structure as described in claim 1, characterized in that, The upper slide rail (1) is a U-shaped structure with the opening facing downwards. At the opening end of the U-shaped structure, there is a folded edge structure (9) that bends inwards. The folded edge structure (9) cooperates with the U-shaped structure to form a channel for accommodating the movement of the roller (8). The inlet (5) is opened on the folded edge structure (9) below the channel.

3. The sliding door upper slide rail structure as described in claim 2, characterized in that, The lower part of the two side plates of the upper slide rail (1) has two clearance notches facing each other, and the two clearance notches are connected to the input port (5).

4. The sliding door upper slide rail structure as described in claim 1, characterized in that, The inlet (5) has a rectangular cross-section, and the length of the inlet (5) is greater than the width of the inlet (5).

5. The sliding door upper slide rail structure as described in claim 4, characterized in that, The length of the inlet (5) is at least 20 mm greater than the diameter of the roller (8).

6. The sliding door upper slide rail structure as described in claim 1, characterized in that, The rear bracket (2) is U-shaped. The two side plates of the rear bracket (2) are respectively attached to the side plate portions on both sides of the upper slide rail (1). The closed end of the rear bracket (2) is attached to the top of the upper slide rail (1). At least one of the side plates has an extension (6) on its rear side. The extension (6) is bent horizontally to block the end of the upper slide rail (1).

7. The sliding door upper slide rail structure as described in claim 6, characterized in that, Both side panels have the extension (6), and the two extensions (6) are arranged in an overlapping manner.

8. The sliding door upper slide rail structure as described in claim 1, characterized in that, The rear support (2) has an extension section (7) between it and the inlet (5).

9. The sliding door upper slide rail structure as described in claim 8, characterized in that, The top plate of the extension section (7) has mounting holes (3).

10. An upper slide rail system, characterized in that, The sliding door upper slide rail structure as described in any one of claims 1-9 also includes an upper hinge, the end of which is connected to a pin (4), and the upper end of the pin (4) is connected to a roller (8); the roller (8) enters the upper slide rail (1) from the inlet (5) and slides in cooperation with the upper slide rail (1).

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