Sliding rail facilitating gap adjustment and vehicle

Abstract

The invention provides a slide rail convenient for gap adjustment and a vehicle, and relates to the technical field of slide rails, the slide rail comprises a lower slide rail, an upper slide rail and a lower slide rail, the lower slide rail is internally provided with a mounting chamber, and the inner wall of the mounting chamber is provided with a fillet structure; the upper sliding rail is mounted in the mounting chamber and can move in the extending direction of the lower sliding rail; the roller support is installed on the upper sliding rail, and a plurality of clamping grooves are formed in the roller support; the pin rollers are rotatably installed at the clamping grooves, the pin rollers and the clamping grooves are detachably installed, the axes of the pin rollers are parallel to the movable direction of the upper sliding rail, the pin rollers are located at the gap between the upper sliding rail and the lower sliding rail, and the circumferential surfaces of the pin rollers make contact with the fillet structures. In the assembling process, clearance elimination is completed by selecting and using the pin rollers with different diameter specifications, the requirement for the precision of the production technology is low, the assembling production efficiency is remarkably improved, the contact area of the pin rollers and the lower sliding rail is larger compared with a traditional bearing, the upper sliding rail and the lower sliding rail are not prone to deformation under stress, and the upper sliding rail assembly is more stable and reliable in the moving process.

Description

Technical Field

[0001] This invention relates to the field of slide rail technology, and in particular to slide rails and vehicles that facilitate adjustable clearance. Background Technology

[0002] In traditional slide rail structures, such as Figure 5 Generally, bearings are riveted to the upper slide rail, allowing the upper slide rail assembly to move within the lower slide rail. Clearance-eliminating bearings and plastic parts are used to eliminate the gap between the upper and lower slide rails. The main drawback of this structure is that the bearings are generally not very effective at eliminating gaps, and the riveting process between the bearings and the upper slide rail often requires high precision, making it difficult to further improve production and assembly efficiency. The large number of bearings (clearance-eliminating bearings and running bearings) also increases costs. In response to the above-mentioned drawbacks, this application is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a slide rail and vehicle that facilitates gap adjustment, using rollers to eliminate the gap between the upper and lower slide rails, and serving as a moving functional component, thereby reducing the precision requirements of the production process and lowering costs.

[0004] To solve the above problems, the present invention provides a slide rail that facilitates gap adjustment, comprising:

[0005] Lower slide rail: The lower slide rail is provided with an installation chamber, and the inner wall of the installation chamber is provided with a rounded corner structure;

[0006] Upper slide rail: Installed in the mounting chamber, it can move along the extension direction of the lower slide rail;

[0007] Roller bracket: mounted on the upper slide rail, the roller bracket is provided with several slots;

[0008] Roller: The roller is rotatably mounted in the slot, and the roller and the slot are detachably installed. The axis of the roller is parallel to the movable direction of the upper slide rail. The roller is located in the gap between the upper slide rail and the lower slide rail. The circumferential surface of the roller is in contact with the rounded corner structure. The roller is used to eliminate the gap between the upper slide rail and the lower slide rail and serves as a moving functional component.

[0009] Based on the gap between the upper and lower slide rails, select rollers of appropriate diameter for installation to easily eliminate the gap.

[0010] Alternatively, the clearance can be eliminated by simply replacing rollers of different diameters; it can also be achieved by changing the size of the roller bracket, which can be configured with several sizes, and the appropriate size can be selected when adjusting the clearance; or it can be achieved by replacing both the roller and the roller bracket.

[0011] The rollers contact the rounded corners of the lower slide rail. Since the axis of the rollers is in the same direction as the extension of the lower slide rail, the contact area between the rollers and the lower slide rail is larger than that of traditional bearings. This makes the upper and lower slide rails less prone to deformation under stress, and the movement of the upper slide rail assembly is more stable and reliable.

[0012] The rollers are rotatably mounted, which avoids the problem of reduced service life caused by continuous wear in a single location.

[0013] The rollers also serve as moving components, eliminating the need for bearings and reducing the cost of the slide rails.

[0014] According to one embodiment of the present invention, 2 to 4 sets of the rounded corner structures are provided and symmetrically arranged on the inner walls of both sides of the installation chamber.

[0015] Preferably, four sets of rounded corner structures are provided, the mounting chamber of the slide rail is a square cavity, and the four sets of rounded corner structures are respectively set at the four corners, with rollers also set at the four corners to improve the stability of the slide rail.

[0016] Optionally, the roller bracket and the upper slide rail can be an integral structure or a separate structure.

[0017] When an integrated structure is adopted, the roller bracket and the upper slide rail are integrally formed, or fixed to the upper slide rail by non-disassembly methods such as welding.

[0018] When a split structure is adopted, the roller bracket and the upper slide rail are connected by means of snap-fit, bolt connection, plug-in connection, etc.

[0019] Preferably, the upper slide rail is provided with a fixing hole, and the roller bracket is provided with a fixing member that mates with the fixing hole, and the fixing member is engaged with the fixing hole.

[0020] According to one embodiment of the present invention, the upper slide rail is provided with a flanged portion, the flanged portion is provided with a roller contact portion, and the roller and the roller contact portion are in contact and engaged.

[0021] The flanged parts are located on both sides of the upper slide rail. They can be formed by flanging the upper slide rail body or by assembly.

[0022] The roller contact portion and the rounded corner structure contact the two sides of the roller respectively, further improving the compactness of the structure, ensuring the stability of the relative movement of the upper and lower slide rails, and improving the load-bearing capacity of the slide rail.

[0023] According to one embodiment of the present invention, the lower slide rail is provided with an anti-disengagement hook, which forms a hook stop with the flange portion. The hook stop is used to limit the lateral position of the upper slide rail in the lower slide rail and to restrict the flange portion between the inner wall of the installation chamber and the anti-disengagement hook. This facilitates positioning and assembly and prevents the lower slide rail from separating from the upper slide rail during use, thus ensuring stability during use.

[0024] According to one embodiment of the present invention, the inner core of the roller is made of metal, and the outer coating layer is made of polymer material. The metal inner core ensures that the roller has high strength, and the polymer material of the coating layer effectively reduces frictional resistance.

[0025] According to one embodiment of the present invention, the inner core material is high-carbon chromium bearing steel, and the cladding layer is polytetrafluoroethylene.

[0026] Optionally, the lower slide rail is made of aluminum alloy or steel, and the upper slide rail is made of aluminum alloy or steel.

[0027] A vehicle includes the aforementioned adjustable slide rail, which is commonly used as a seat slide rail in automobiles.

[0028] It should be noted that the adjustable slide rail in this solution is not limited to automotive seat slide rails; it can be applied in any field or scenario.

[0029] The beneficial effects of this invention are that by setting detachable rollers, which are located in the gap between the upper and lower slide rails and contact the rounded corner structure, the gap can be eliminated during assembly by selecting rollers of different diameters. This makes installation quick and convenient, reduces the precision requirements of the manufacturing process, and significantly improves assembly efficiency. Compared with traditional bearings, the rollers have a larger contact area with the lower slide rail, making the upper and lower slide rails less prone to deformation under stress, and the upper slide rail assembly moves more smoothly and reliably. The rollers also serve as moving functional components, eliminating the need for bearings and reducing the cost of the slide rails. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 A schematic diagram of the slide rail cross-section for easy adjustment of the clearance;

[0032] Figure 2 An exploded structural diagram of a slide rail designed for easy gap adjustment;

[0033] Figure 3 A schematic diagram of the upper slide rail, roller bracket, and rollers;

[0034] Figure 4 This is a schematic diagram showing the fit between the roller and the upper and lower slide rails.

[0035] Figure 5 This is a schematic diagram of the existing slide rail structure;

[0036] In the figure: lower slide rail 10; anti-disengagement hook 11; rounded corner structure 12; mounting chamber 13; roller 20; roller bracket 30; slot 31; fastener 32; upper slide rail 40; fixing hole 41; flanged part 42; roller contact part 421; upper slide rail bracket 50. Detailed Implementation

[0037] The following description is only intended to disclose the invention so that those skilled in the art can practice it. The embodiments described below are merely examples, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the invention.

[0038]

Example 1

[0039] Slide rails that facilitate gap adjustment, such as Figures 1-4 It includes a lower slide rail 10, an upper slide rail 40, a roller bracket 30, a roller 20, and an upper slide rail bracket 50.

[0040] like Figure 2 The lower slide rail 10 is made of aluminum alloy. In order to adapt to the body floor of different vehicle models, the lower slide rail 10 is made of aluminum alloy material that can be quickly formed, is lightweight and has high strength. The lower slide rail 10 is provided with an installation chamber 13. The installation chamber 13 has a square cross section. The four corners of the installation chamber 13 are provided with rounded corner structures 12 (R corners). The rounded corner structures 12 are provided along the extension direction of the lower slide rail 10.

[0041] The top of the mounting chamber 13 has an opening for connecting the upper slide rail bracket 50 to the upper slide rail 40.

[0042] The top wall of the installation chamber 13 has symmetrical downward protrusions on the left and right sides to form anti-detachment hooks 11.

[0043] like Figure 3 The upper slide rail 40 is installed in the mounting chamber 13 and can move along the extension direction of the lower slide rail 10. In this embodiment, the upper slide rail 40 is made of steel, with the two sides turned upward to form a flange 42. The upper slide rail bracket 50 is installed on the top of the upper slide rail 40 and extends outward through the top opening of the mounting chamber 13. The upper slide rail bracket 50 is used to connect with external structures, such as car seat frames.

[0044] The flanged part 42 is provided with a number of fixing holes 41 for cooperating with the roller bracket 30. Each roller bracket 30 is preferably provided with two sets of fixing holes 41.

[0045] The top height of the flange 42 is higher than that of the anti-disengagement hook 11. The anti-disengagement hook 11 and the flange 42 form a hook stop. The hook stop is used to limit the lateral position of the upper slide rail 40 in the lower slide rail 10, and to restrict the flange 42 between the inner wall of the mounting chamber 13 and the anti-disengagement hook 11. This facilitates positioning and assembly, and prevents the lower slide rail 10 from separating from the upper slide rail 40 during use, thus ensuring stability during use.

[0046] like Figure 4 The upper and lower areas of the flanged part 42 have arc-shaped transitions, forming two roller contact parts 421.

[0047] like Figure 3 Several roller brackets 30 are installed on both sides of the upper slide rail 40 and arranged at a set interval along the extension direction of the upper slide rail 40. The roller brackets 30 are provided with several slots 31 for mounting the rollers 20. Preferably, the roller brackets 30 are provided with slots 31 on both the upper and lower sides. Since the bottom is subjected to greater force, the number of slots on the lower side of the roller brackets 30 is greater than that on the upper side. In this embodiment, two slots 31 are provided on the lower side and one on the upper side.

[0048] The roller bracket 30 is provided with a fastener 32 that mates with the fixing hole 41.

[0049] In a single model of slide rail, the roller bracket 30 can be configured with only a single size specification or multiple sizes specification. When multiple sizes specification is set, it can be used in conjunction with different rollers 20 to eliminate and adjust the gap.

[0050] The fixing hole 41 can be a bolt hole, and the fastener 32 can be a bolt, which is tightened to fix the device.

[0051] The fixing hole 41 can be a through hole, and the fixing member 32 is an expansion screw assembly. After the expansion sleeve is inserted into the fixing hole 41, the screw is screwed in to expand and fix the expansion sleeve.

[0052] In this embodiment, a snap-fit ​​connection is preferred for easy and quick assembly and disassembly. The fixing hole 41 is a through hole.

[0053] The fastener 32 is a snap-fit ​​body with a hook. After being squeezed and deformed, it is inserted into the fixing hole 41, and the snap-fit ​​body hooks onto the back of the fixing hole 41 to achieve snap-fit.

[0054] The roller 20 is cylindrical in shape and is rotatably mounted in the slot 31. The roller 20 and the slot 31 are detachably mounted. The inner walls on both sides of the slot 31 are provided with protruding shafts. The roller 20 is provided with shaft holes at both ends for the shafts to be inserted. The roller 20 is pressed into the slot 31 to achieve connection. Alternatively, shafts can be provided at both ends of the roller 20, and shaft holes can be provided on the inner wall of the slot 31. The shaft and the shaft hole can be selected to be engaged by extrusion deformation, or the shaft can be placed in the shaft hole and the shaft position is held in the shaft hole by the mounting structure.

[0055] The inner core of the roller 20 is made of metal, preferably high-carbon chromium bearing steel, which has high strength. The outer coating of the inner core is made of polymer material, preferably polytetrafluoroethylene, which effectively reduces frictional resistance.

[0056] The axis of the roller 20 is parallel to the movable direction of the upper slide rail 40. The roller 20 is located in the gap between the upper slide rail 40 and the lower slide rail 10 and contacts the rounded corner structure 12. The roller 20 is used to eliminate the gap between the upper slide rail 40 and the lower slide rail 10 and serves as a moving functional component.

[0057] like Figure 4 The roller contact part 421 and the rounded corner structure 12 contact the two sides of the roller 20 respectively, further improving the compactness of the structure and ensuring the stability of the relative movement of the upper slide rail 40 and the lower slide rail 10. The pressure from above is transmitted to the lower slide rail through the flange part 42 and the roller 20 for dispersion, thereby improving the load-bearing capacity of the slide rail.

[0058] The rollers 20 are available in various sizes. The rollers 20 of the appropriate diameter are selected for installation according to the gap between the upper slide rail 40 and the lower slide rail 10, so as to achieve the effect of conveniently eliminating the gap.

[0059] The roller 20 contacts the rounded corner structure 12 of the lower slide rail 10. Since the axis of the roller 20 is in the same direction as the extension of the lower slide rail 10, the roller 20 has a larger contact area with the lower slide rail 10 than traditional bearings, making the upper and lower slide rails less prone to deformation under force, and the upper slide rail assembly moves more smoothly and reliably.

[0060] like Figure 5 The axial length of traditional running bearings is limited by the width of the slide rail, making it difficult to increase further. Only part of the circumferential surface of the running bearing contacts the lower slide rail. In this solution, the axis of the roller 20 is in the same direction as the extension of the lower slide rail 10. The length of the roller 20 is not limited by the width of the slide rail. Moreover, the roller 20 is cylindrical, and its outer circumference contacts the lower slide rail, resulting in a contact area that is significantly larger than that of traditional bearings.

[0061] The roller 20 is rotatably mounted. During the use of the slide rail, the roller 20 can rotate to a certain extent, avoiding the problem of continuous wear in a single position leading to a reduction in service life.

[0062] In some other embodiments, the roller 20 may be non-rotatably mounted in the slot 31. In this case, the roller 20 continuously rubs against the lower slide rail 10 at the same position, and the service life of this type of slide rail is shorter than that of the slide rail with rotatably mounted roller 20.

[0063] During assembly, the upper slide rail 40 and the upper slide rail bracket 50 are welded together to form a single component.

[0064] Multiple rollers 20 are respectively inserted into the corresponding slots on the upper and lower sides of the roller bracket 30 to form a component.

[0065] The roller 20 is available in various diameters to better fit the gap between the upper slide rail 40 and the lower slide rail 10.

[0066] During assembly, the assembly consisting of roller 20 and roller bracket 30 can be quickly inserted into the fixing hole 41 at the flange 42 of the upper slide rail 40, and then pushed together into the inner cavity of the lower slide rail 10.

[0067] This structure is simpler and faster to assemble than traditional slide rails. If there is an unsuitable roller 20, the roller 20 and roller bracket 30 assembly can be quickly removed from the upper slide rail 40 and replaced with a suitable roller 20 and roller bracket 30 assembly.

[0068] A vehicle includes the aforementioned adjustable slide rail, which serves as a seat slide rail in an automobile.

[0069] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations and modifications can be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A slide rail that facilitates gap adjustment, characterized in that: include: Lower slide rail (10): The lower slide rail (10) is provided with an installation chamber (13), and the inner wall of the installation chamber (13) is provided with a rounded corner structure (12). Upper slide rail (40): Installed in the mounting chamber (13), it can move along the extension direction of the lower slide rail (10); Roller bracket (30): mounted on the upper slide rail (40), the roller bracket (30) is provided with several slots (31); Roller (20): The roller (20) is rotatably mounted in the slot (31), and the roller (20) and the slot (31) are detachably mounted. The axis of the roller (20) is parallel to the movable direction of the upper slide rail (40). The roller (20) is located in the gap between the upper slide rail (40) and the lower slide rail (10) and is in contact with the rounded corner structure (12). The roller (20) is used to eliminate the gap between the upper slide rail (40) and the lower slide rail (10) and serves as a moving functional component.

2. The slide rail for easy gap adjustment according to claim 1, characterized in that: The rounded corner structure (12) is provided in 2 to 4 sets and is symmetrically arranged on both sides of the inner wall of the installation chamber (13).

3. The slide rail for easy gap adjustment according to claim 1, characterized in that: The roller bracket (30) and the upper slide rail (40) are either an integral structure or a separate structure.

4. The slide rail for easy gap adjustment according to claim 1, characterized in that: The upper slide rail (40) is provided with a fixing hole (41), and the roller bracket (30) is provided with a fixing member (32) that cooperates with the fixing hole (41).

5. The slide rail for easy adjustment of clearance according to any one of claims 1-4, characterized in that: The upper slide rail (40) is provided with a flange (42), and the flange (42) is provided with a roller contact part (421). The roller (20) and the roller contact part (421) are in contact and cooperate.

6. The slide rail for easy gap adjustment according to claim 5, characterized in that: The lower rail (10) is provided with an anti-disengagement hook (11), which forms a hook block with the flange (42).

7. The slide rail for easy adjustment of clearance according to claim 1 or 6, characterized in that: The inner core of the roller (20) is made of metal, and the outer coating layer is made of polymer material.

8. The slide rail for easy adjustment of clearance according to claim 7, characterized in that: The inner core is made of high-carbon chromium bearing steel, and the cladding layer is made of polytetrafluoroethylene.

9. The slide rail for easy adjustment of clearance according to claim 7, characterized in that: The lower slide rail (10) is made of aluminum alloy or steel, and the upper slide rail (40) is made of aluminum alloy or steel.

10. A vehicle, characterized in that: Includes the slide rail that facilitates gap adjustment as described in any one of claims 1-9.

Images