Guide rail assembly of automobile seat

Abstract

The utility model discloses a guide rail assembly of an automobile seat, and relates to the field of automobile spare parts, the guide rail assembly comprises a guide rail piece and a sliding piece installed in the guide rail piece in a sliding mode, and the sliding piece comprises a body and a plurality of ball sliding mechanisms installed on the two side faces of the body; the ball sliding mechanism comprises a ball frame, two notch positions are formed in the ball frame, and two upper ball mounting positions which are horizontally separated are formed by matching the notch positions with the side face of the body. The guide rail assembly is provided with graphite lubrication design, long-time self-lubrication can be achieved when the balls slide, and the service life of the guide rail assembly of the automobile seat is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile parts, in particular to a guide rail assembly for automobile seat. BACKGROUND

[0002] The existing guide rail assembly for automobile seat is usually fixedly installed and cannot be disassembled and replaced after the vehicle assembly stage. The main structure of the guide rail assembly includes inner and outer slides, and the front and rear sliding adjustment function of the seat is realized through the rolling of the balls. The design goal is to ensure the stability and durability of the seat sliding to meet the comfort needs of the driver and passengers. However, during long-term use, the traditional guide rail assembly will expose some technical defects, which seriously affect the use performance and user experience.

[0003] Firstly, due to the repeated sliding and vibration of the seat on the guide rail assembly, the lubrication effect of the internal balls will gradually weaken. Although lubricating grease is applied to the contact surface of the ball and the slide during the manufacturing stage, the lubricating grease will gradually be lost or contaminated over time, resulting in an increase in the friction coefficient between the ball and the slide. The direct consequence of this is that the guide rail assembly will not slide smoothly or even be stuck, and in severe cases, the seat may not be adjusted smoothly. In addition, the position of the ball in the traditional guide rail assembly is usually designed inside the slide, which is hidden and difficult to directly contact, making it difficult for users to re-lubricate or maintain the ball. Therefore, the extension of the service life often requires the replacement of the entire guide rail assembly, which obviously increases the maintenance cost and resource waste. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to overcome at least one deficiency in the prior art, and to provide a guide rail assembly for an automobile seat, which has a graphite lubrication design and can achieve long-term self-lubrication during ball sliding, thereby improving the service life of the guide rail assembly for the automobile seat.

[0005] To achieve the above-mentioned purpose, the present application discloses a guide rail assembly for an automobile seat, which comprises a guide rail piece and a sliding piece slidingly installed in the guide rail piece. The sliding piece comprises a body and a plurality of ball sliding mechanisms installed on both side surfaces of the body. The ball sliding mechanism comprises a ball holder having two notched positions. The notched positions cooperate with the side surfaces of the body to form two horizontally spaced upper ball installation positions. The upper edge of the ball holder is turned by flanging to form an intermediate installation position communicating with the two upper ball installation positions. Upper balls are installed in the two upper ball installation positions, and an upper rolling sliding assembly is installed in the intermediate installation position. The upper rolling sliding assembly comprises two graphite blocks respectively partially inserted into the upper ball installation positions and contacting the upper balls in two directions, and a spring clamped between the two graphite blocks. The spring pushes the graphite blocks against the surface of the upper balls to lubricate the upper balls when they rotate.

[0006] The lower end of the ball rack has a notch that cooperates with the side surface of the body to form a lower ball mounting position, and the lower ball is installed in the lower ball mounting position. At the same time, the two sides of the lower ball mounting position are turned downward to form a side block portion for limiting the lower ball, and a graphite sheet in contact with the lower ball is installed on the contact surface between the side block portion and the lower ball. When the lower ball rotates, it contacts the graphite sheet to achieve lubrication of the lower ball.

[0007] In some embodiments, the ball sliding mechanisms on both sides of the body are symmetrically arranged.

[0008] In some embodiments, the upper ball mounting position and the lower ball mounting position of the body are concavely matched to mount the upper ball and the lower ball.

[0009] 1. Extended service life: By introducing graphite blocks and spring structures into the ball sliding mechanism of the guide rail assembly, self-lubrication of the balls is effectively achieved, avoiding the poor sliding or sticking phenomenon caused by grease loss or contamination in traditional guide rail assemblies, thereby extending the service life of the guide rail assembly.

[0010] 2. Reduce maintenance costs: Since the ball sliding mechanism can self-lubricate for a long time, users do not need to frequently perform secondary lubrication or replace components, thereby reducing maintenance costs and reducing resource waste.

[0011] 3. Improve sliding smoothness: The self-lubricating design can maintain a low friction coefficient, ensure the smooth sliding of the seat, and enhance the user experience of the driver and passengers.

[0012] 4. Easy to install and maintain: The design takes into account the structure of the sliding parts and ball sliding mechanism, making the overall device easier to install and maintain, avoiding the difficult operation and maintenance problems caused by the hidden position of the ball in the traditional design.

[0013] The above-listed beneficial effects are not exhaustive and other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description sections of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] After reading the following detailed description in conjunction with the accompanying drawings, you will better understand the various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the drawings and the like sometimes do not represent the actual positions, sizes, and ranges. In the drawings:

[0015] Figure 1 It is a structural diagram of an embodiment disclosed in this application.

[0016] Figure 2 It is a structural schematic diagram of an embodiment disclosed in this application from another perspective.

[0017] Figure 3 is a structural schematic diagram of a sliding member in an embodiment disclosed in the present application.

[0018] Figure 4 is a structural schematic diagram of a sliding member in another view in an embodiment disclosed in the present application.

[0019] Figure 5 is Figure 4 is a sectional structural schematic diagram of A-A in the figure.

[0020] Figure 6 is Figure 5 is an enlarged view at B in the figure.

[0021] In the figure, the respective reference numerals are: guide rail member 1, sliding member 2, body 3, ball sliding mechanism 4, ball holder 5, upper ball mounting position 6, intermediate mounting position 7, graphite block 8, spring 9, upper ball 10, lower ball mounting position 11, side stop 12, graphite sheet 13, lower ball 14. DETAILED DESCRIPTION

[0022] The present disclosure will be described with respect to the drawings in which several embodiments of the present disclosure are shown. It is to be understood that the present disclosure can be embodied in many different forms and is not to be limited by the embodiments described hereinafter but is to be given a broad consideration in accordance with the principles described herein and with suitable modification as will occur to those skilled in the art. It is also to be understood that the embodiments disclosed herein can be combined in various ways and that additional embodiments are possible.

[0023] It is to be understood that like numerals in the drawings represent like elements throughout the several embodiments. In the drawings, the dimensions can be exaggerated for clarity.

[0024] It is to be understood that the phraseology and terminology used herein is for the purpose of description and not of limitation. All technical and scientific terms used herein are to be interpreted in the same manner as they would be interpreted by one skilled in the art. For the purposes of the present disclosure, technical, methodological and procedural terms are not discussed in detail as they are known to those of ordinary skill in the relevant art.

[0025] As used in the description herein and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. As used in the description herein and the appended claims, the language "includes" and "comprises" is not intended to be exclusive or exhaustive, and is intended to be inclusive and exhaustive. As used in the description herein and the appended claims, the language "and / or" includes all possible combinations of the items listed. EMBODIMENTS

[0026] Referring to the drawings Figures 1 to 6 The embodiment provides an exemplary structure of an automobile seat rail assembly. The structural design and lubrication principle of the rail assembly can effectively solve the problem of insufficient lubrication in traditional rail assemblies, thereby improving the sliding performance and service life of the seat. Specifically, the rail assembly includes a rail piece 1, a sliding piece 2, a ball sliding mechanism 4, a ball holder 5, and other key parts. Through the self-lubricating mechanism designed with care, the stability of seat sliding is ensured, the maintenance frequency is reduced, and the service life is prolonged.

[0027] The rail piece 1 is the main part of the rail assembly, mainly used to provide a stable track required for seat sliding. The internal design of the rail piece 1 is adapted to the smooth sliding of the sliding piece 2, ensuring that it can smoothly and stably contact the sliding rail surface during use. The sliding piece 2 is installed in the rail piece 1 and completes the forward and backward adjustment function of the seat through a plurality of ball sliding mechanisms 4. The body 3 of the sliding piece 2 is provided with a plurality of ball sliding mechanisms 4 on both sides, and the core part of the ball sliding mechanism 4 is a ball holder 5. The ball holder 5 is matched with the side surface of the body 3 through two notched positions, forming an upper ball mounting position 6 and a lower ball mounting position 11. The upper ball mounting position 6 and the lower ball mounting position 11 are respectively provided with upper balls 10 and lower balls 14. These balls are fixed through the structural design of the ball holder 5, ensuring stable rotation during use.

[0028] The upper ball mounting position 6 is designed with a groove to ensure that the upper ball 10 can be stably installed and maintain appropriate contact pressure during sliding. The upper edge of the ball holder 5 is turned over to form an intermediate mounting position 7, which is in communication with the two upper ball mounting positions 6 and provides a stable rotation space for the upper ball 10. In order to lubricate the upper ball 10, an upper ball sliding assembly is installed in the ball holder 5, which includes two graphite blocks 8 and a spring 9 clamped between the two graphite blocks 8.

[0029] During work, the spring 9 pushes the graphite block 8 to make it contact with the surface of the upper ball 10. Since graphite has self-lubricating properties, the graphite block 8 can release tiny lubricating particles when it rubs against the surface of the upper ball 10, reducing the friction between the ball and the surface of the sliding rail. Specifically, the graphite block 8 constantly provides lubrication as the upper ball 10 rotates, so that the surface of the ball always maintains a low friction coefficient, thereby reducing wear and ensuring smooth and stable sliding of the seat during use. The lubricating effect of graphite can effectively prevent the loss or contamination of lubricating grease, thereby significantly improving the durability and service life of the ball sliding mechanism 4.

[0030] The lower ball mounting position 11 cooperates with the side of the body 3, and also adopts a similar design. The two sides of the lower ball mounting position 11 are turned downward to form side stop portions 12, which function to limit the movement of the lower ball 14 within the mounting position and ensure that it is always stably maintained on the set track. Graphite sheets 13 are mounted on the side stop portions 12, which come into contact with the surface of the lower ball 14 when it rotates, playing a similar lubricating role to the upper ball 10. The lubricating effect of the graphite sheets 13 also helps to reduce the friction between the lower ball 14 and the surface of the slide rail, thereby maintaining the smoothness of the slide of the guide rail assembly.

[0031] In order to ensure the stability of the sliding member 2, the ball slide mechanism 4 is generally designed to be symmetrical. That is, the ball slide mechanisms 4 on both sides of the body 3 are identical in structure and function, which ensures that the guide rail assembly is evenly stressed during use and avoids uneven wear and tear on one side. This symmetrical design makes the overall stability of the guide rail assembly higher, avoiding unnecessary wear and tear and failure caused by unbalanced loads.

[0032] In addition, the concave fitting design in the upper ball mounting position 6 and the lower ball mounting position 11 further ensures the stable installation of the balls. Through this design, the upper ball 10 and the lower ball 14 can always be maintained in a fixed position, preventing the phenomenon of shaking or deviation during use, thereby further improving the stability and service life of the guide rail assembly.

[0033] In summary, the automobile seat guide rail assembly provided in the present embodiment can effectively improve the sliding performance and service life of the guide rail assembly through the innovative ball slide mechanism 4 and self-lubricating design. In actual application, the guide rail assembly can continuously provide smooth seat adjustment function, reduce maintenance requirements, reduce maintenance costs, and improve the comfort of drivers and passengers. In terms of materials, the guide rail member 1 and the sliding member 2 are made of high-strength aluminum alloy material, and the ball holder 5, the graphite block 8, and the graphite sheet 13 are made of materials with good wear resistance and self-lubricating properties, which can effectively prolong the service life of the guide rail assembly during long-term use.

[0034] Although exemplary embodiments of the present disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. A guide rail assembly for a car seat, characterized in that: The guide rail assembly includes a guide rail part, a sliding part slidably installed in the guide rail part, the sliding part includes a body, and a plurality of ball sliding mechanisms installed on both sides of the body; the ball sliding mechanism includes a ball rack, the ball rack is provided with two notches, the notches are used to cooperate with the side surfaces of the body to form two horizontally spaced upper ball mounting positions, and the upper edge of the ball rack is rotated by a flange to form an intermediate mounting position connected to the two upper ball mounting positions between the two upper ball mounting positions, the upper balls are installed in the two upper ball mounting positions, and the upper rolling assembly is installed in the intermediate mounting position, the upper rolling assembly includes two graphite blocks that partially extend into the upper ball mounting positions in two directions and contact the upper balls, and a spring sandwiched between the two graphite blocks, the graphite block is pushed by the spring to press against the surface of the upper balls, and the upper balls are lubricated when the upper balls rotate; The lower end of the ball rack has a notch that cooperates with the side surface of the body to form a lower ball mounting position, and the lower ball is installed in the lower ball mounting position. At the same time, the two sides of the lower ball mounting position are turned downward to form a side block portion for limiting the lower ball, and a graphite sheet in contact with the lower ball is installed on the contact surface between the side block portion and the lower ball. When the lower ball rotates, it contacts the graphite sheet to achieve lubrication of the lower ball.

2. A guide rail assembly for a car seat as claimed in claim 1, characterized in that: The ball sliding mechanisms on both sides of the body are symmetrically arranged.

3. A guide rail assembly for a car seat as claimed in claim 1, characterized in that: The upper ball installation position and the lower ball installation position of the body are concavely matched to install the upper ball and the lower ball.

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