Roller mechanism and vehicle seat
By designing a tightly fitted roller mechanism, the problem of excessive gaps between the vehicle seat rollers and the guide rails has been solved, improving the stability and comfort of the seat, extending its service life, and reducing noise and maintenance costs.
Patent Information
- Application Number
- CN202520630074.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-07
AI Technical Summary
The existing vehicle seat roller mechanism has problems such as instability, noise and wear when rolling in the C-shaped guide rail due to excessive gaps, which affects its service life.
A roller mechanism was designed, comprising a first track, a limiting frame, a limiting piece, a first roller, a second roller, and a rotating shaft. The design of the limiting frame and the rotating shaft ensures that the rollers fit tightly within the guide rail, eliminating gaps. Elastic and wear-resistant materials are used to reduce wear and noise.
It improves the stability and comfort of the seat, reduces noise, extends the service life of the roller mechanism, simplifies the production process, and reduces maintenance costs.
Smart Images
Figure CN223890849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle seats, specifically to a vehicle seat with a roller mechanism. Background Technology
[0002] Roller mechanisms used in vehicle seats are well-known, especially those connecting to scissor brackets. When the vehicle seat moves up and down, the scissor brackets extend forward and backward in the fore-and-aft direction, requiring the rollers to roll within guide rails. Most of these roller mechanisms suffer from the problem that, within C-shaped guide rails, the rollers exhibit significant gaps both above and below as they roll. This is because the rollers create resistance relative to the adjacent guide rail walls due to their opposing upper and lower movements.
[0003] This situation can cause the rollers to frequently deviate from their preset tracks, bouncing irregularly up, down, left, and right, severely affecting the stability of the seat and generating various noises, resulting in a poor user experience. This movement can also increase the wear and tear on the roller guide rails, and in severe cases, even cause them to break, significantly reducing their lifespan. Utility Model Content
[0004] In view of the above problems, the present invention is proposed to provide a roller mechanism and vehicle seat that overcomes or at least partially solves the above problems.
[0005] According to one aspect of the present invention, a roller mechanism is provided, characterized in that the roller mechanism includes a first track, a limiting frame, a first roller, a limiting piece, a second roller, and a rotating shaft;
[0006] The first track is made of C-shaped metal, and through holes and buckles are provided on the side of the first track;
[0007] The limiting frame is made of elastic and wear-resistant material. The limiting frame is provided with a slot, a second track and a third track. The distance from the second track to the center of the limiting frame is less than the distance from the third track to the center of the limiting frame.
[0008] The second roller is made of an elastic and wear-resistant material, and the second roller is provided with a first limiting roller and a second limiting roller;
[0009] The rotating shaft comprises three parts: a first rotating shaft, a second rotating shaft, and a third rotating shaft.
[0010] Preferably, the slot of the limiting frame engages with the buckle on the first track, and the second and third tracks of the limiting frame are fixed in the through hole of the first track.
[0011] Preferably, the inner diameter of the second rotating shaft is smaller than the inner diameter of the first rotating shaft, and the inner diameter of the second rotating shaft is larger than the inner diameter of the third rotating shaft.
[0012] Preferably, the first roller rotates on the second rotating shaft, and the second roller rotates on the third rotating shaft.
[0013] Preferably, the first limiting roller cannot pass through the limiting frame.
[0014] Preferably, the outer diameter of the second limiting roller is smaller than the distance between the second track and the third track, and the second limiting roller can only roll on the second track.
[0015] Preferably, the roller mechanism can be installed in two ways: an upper-mounted installation and a lower-mounted installation.
[0016] Preferably, when the roller mechanism is in the top-suspended installation mode, the second track is located above the third track, the top of the first roller does not contact the top of the first track, the bottom of the first roller contacts the bottom of the first track, the top of the second limiting roller contacts the second track, and the bottom of the second limiting roller does not contact the third track.
[0017] Preferably, when the roller mechanism is in the under-mounted installation mode, the second track is located below the third track, the top of the first roller is in contact with the top of the first track, the bottom of the first roller is not in contact with the bottom of the first track, the top of the second limiting roller is not in contact with the third track, and the bottom of the second limiting roller is in contact with the second track.
[0018] According to another aspect of the present invention, a vehicle seat is designed, the vehicle seat including the aforementioned roller mechanism.
[0019] The beneficial effects of this utility model are as follows: This roller mechanism significantly improves the performance and user experience of vehicle seats. The tight fit between the rollers and the guide rails effectively eliminates the common up-and-down and left-and-right swaying problems in traditional designs, making the seat more stable during dynamic driving. This not only improves the safety and comfort of riding but also greatly reduces discomfort caused by vibration, providing passengers with a more pleasant driving experience. Furthermore, this design significantly reduces the precision requirements for the track opening size, further simplifying the production process and reducing manufacturing costs. Secondly, through precise design, the optimized roller mechanism fundamentally solves the noise problem caused by excessive gaps in traditional structures, resulting in quieter operation. In addition, this design significantly improves the durability of the roller mechanism. By reducing wear and enhancing structural strength, the service life of the roller mechanism is extended, maintenance frequency is reduced, and repair costs are lowered. At the same time, the risk of component damage is greatly reduced, avoiding the hassle of frequent system replacements and saving users long-term operating costs.
[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description
[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0022] Figure 1 A three-dimensional view of a roller mechanism is shown.
[0023] Figure 2 An exploded view of a roller mechanism is shown.
[0024] Figure 3 A cross-sectional view of a roller mechanism with a suspended mounting method is shown.
[0025] Figure 4 A cross-sectional view of a roller mechanism with its suspended installation method is shown.
[0026] Figure 5 A diagram showing a vehicle seat configuration is provided.
[0027] Figure label:
[0028] 1. Roller mechanism
[0029] 2. First Track
[0030] 2-1. Through hole
[0031] 2-2, Buckle
[0032] 3. Limiting frame
[0033] 3-1, Card Slot
[0034] 3-2, Second Track
[0035] 3-3, Third Track
[0036] 4. First roller
[0037] 5. Limiting plate
[0038] 6. Second roller
[0039] 6-1, First limiting roller
[0040] 6-2, Second limiting roller
[0041] 7. Rotating shaft
[0042] 7-1, First Rotational Axis
[0043] 7-2, Second Rotation Axis
[0044] 7-3, Third Rotation Axis
[0045] 8. Vehicle seats Detailed Implementation
[0046] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0047] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.
[0048] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0050] Example 1:
[0051] According to one embodiment of this utility model, a roller mechanism 1 is designed. Figure 1 A three-dimensional view of a roller mechanism is shown. Figure 2 An exploded view of a roller mechanism is shown, such as Figure 1 and Figure 2 As shown, the roller mechanism 1 includes a first track 2, a limiting frame 3, a first roller 4, a limiting piece 5, a second roller 6, and a rotating shaft 7;
[0052] Specifically, the first track 2 is made of C-shaped metal, and the side of the first track 2 is provided with a through hole 2-1 and a buckle 2-2;
[0053] Specifically, the limiting frame 3 is made of elastic and wear-resistant material. The limiting frame 3 is provided with a slot 3-1, a second track 3-2 and a third track 3-3. This wear-resistant property can enhance the service life of the limiting frame 3 and reduce the later maintenance cost and time. The elastic property can provide a certain buffering effect when the limiting frame 3 comes into contact with other components. The distance from the second track 3-2 to the center of the limiting frame 3 is smaller than the distance from the third track 3-3 to the center of the limiting frame 3.
[0054] Specifically, the second roller 6 is made of elastic and wear-resistant material. The second roller 6 is equipped with a first limiting roller 6-1 and a second limiting roller 6-2. This wear-resistant property can enhance the service life of the limiting frame 3 and reduce the later maintenance cost and time. The elastic property can provide a certain buffering effect when the second roller 6 comes into contact with other components.
[0055] The rotating shaft 7 comprises three parts: a first rotating shaft 7-1, a second rotating shaft 7-2, and a third rotating shaft 7-3. The rotating shaft 7 is a complete shaft.
[0056] In some embodiments of this utility model, Figure 3 A cross-sectional view of a roller mechanism with a suspended mounting method is shown, as follows: Figure 2 and Figure 3 As shown, the slot 3-1 of the limiting frame 3 is engaged with the buckle 2-2 on the first track 2. The second track 3-2 and the third track 3-3 of the limiting frame 3 are fixed in the through hole 2-1 of the first track 2. The limiting frame 3 is fixed to the first track 2 through this connection method.
[0057] In some embodiments of this utility model, such as Figure 2 As shown, the inner diameter of the second rotating shaft 7-2 is smaller than that of the first rotating shaft 7-1, and the inner diameter of the second rotating shaft 7-2 is larger than that of the third rotating shaft 7-3. The diameters of the rotating shafts 7 decrease one by one, and different diameters can be connected to different components. Different components move on their respective rotating shafts 7 with different diameters without interfering with each other.
[0058] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the first roller 4 rotates on the second rotating shaft 7-2, and the second roller 6 rotates on the third rotating shaft 7-3. Due to the limitation of their own inner diameter, the first roller 4 and the second roller 6 can only rotate on the rotating shaft 7 with their respective inner diameters.
[0059] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the first limiting roller 6-1 cannot pass through the limiting frame 3. The first limiting roller 6-1 rotates along the edge of the limiting frame 3. This setting can ensure that the second roller 6 rolls within the limiting frame 3 without coming off, and can also limit the rotation shaft 7 connected to it from wobbling along the axial direction, thus eliminating axial gap.
[0060] In some embodiments of this utility model, such as Figure 2 and Figure 3As shown, the outer diameter of the second limiting roller 6-2 is smaller than the distance between the second track 3-2 and the third track 3-3. The second limiting roller 6-2 can only roll on the second track 3-2. This situation occurs mainly because the outer diameter of the second limiting roller 6-2 is smaller than the distance between the first track 2 and the second track 3-2.
[0061] In some embodiments of this utility model, Figure 4 A cross-sectional view of a roller mechanism with its suspended installation method is shown, as follows: Figure 3 and Figure 4 As shown, the roller mechanism 1 can be installed in two ways: top-mounted and bottom-mounted. Different installation methods can produce different effects.
[0062] In some embodiments of this utility model, such as Figure 3 As shown, when the roller mechanism 1 is in the top-suspended installation mode, the second track 3-2 is located above the third track 3-3. The top of the first roller 4 does not contact the top of the first track 2, and the bottom of the first roller 4 contacts the bottom of the first track 2. At this time, the downward force of the rotating shaft 7 is borne by the bottom of the first track 2. The top of the second limiting roller 6-2 contacts the second track 3-2, and the bottom of the second limiting roller 6-2 does not contact the third track 3-3. At this time, the upward force of the rotating shaft 7 is borne by the second track 3-2.
[0063] It is evident that this mechanism design can limit the vertical movement of the rotating shaft within the first track to the greatest extent possible, thereby eliminating vertical gaps. This force-bearing method means that the top-mounted installation method is suitable for situations where the bottom of the roller mechanism 1 bears external forces, such as serving as the base of a scissor frame.
[0064] In some embodiments of this utility model, such as Figure 4 As shown, when the roller mechanism 1 is in the downward-launched installation mode, the second track 3-2 is located below the third track 3-3. The top of the first roller 4 is in contact with the top of the first track 2, and the bottom of the first roller 4 is not in contact with the bottom of the first track 2. At this time, the upward force of the rotating shaft 7 is borne by the top of the first track 2. The top of the second limiting roller 6-2 is not in contact with the third track 3-3, and the bottom of the second limiting roller 6-2 is in contact with the second track 3-2. At this time, the downward force of the rotating shaft 7 is borne by the second track 3-2.
[0065] It is evident that this mechanism design can limit the vertical movement of the rotating shaft within the first track to the greatest extent possible, thereby eliminating vertical gaps. This force-bearing method means that the under-mounted installation method is suitable for situations where the top of the roller mechanism 1 bears external forces, such as serving as the top load-bearing part of the scissor frame.
[0066] Example 2:
[0067] According to another embodiment of the present invention, Figure 5 A diagram of a vehicle seating arrangement is shown, such as... Figure 5 As shown, a vehicle seat 8 is designed, which includes the roller mechanism 1 described above.
[0068] In summary, this roller mechanism significantly improves vehicle seat performance and user experience. The tight fit between the rollers and the guide rails effectively eliminates the up-and-down and left-and-right swaying problems common in traditional designs, making the seat more stable during dynamic travel. This not only enhances riding safety and comfort but also significantly reduces discomfort caused by vibration, providing passengers with a more pleasant riding experience. Furthermore, this design greatly reduces the precision requirements for the track opening dimensions, further simplifying the production process and lowering manufacturing costs. Secondly, through precise design, the optimized roller mechanism fundamentally solves the noise problem caused by excessive gaps in traditional structures, resulting in quieter operation. In addition, this design significantly improves the durability of the roller mechanism. By reducing wear and enhancing structural strength, the service life of the roller mechanism is extended, maintenance frequency is reduced, and repair costs are lowered. At the same time, the risk of component damage is greatly reduced, avoiding the hassle of frequent system replacements and saving users long-term operating costs.
[0069] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A roller mechanism, characterized in that, The roller mechanism includes a first track, a limiting frame, a first roller, a limiting piece, a second roller, and a rotating shaft; The first track is made of C-shaped metal, and through holes and buckles are provided on the side of the first track; The limiting frame is made of elastic and wear-resistant material. The limiting frame is provided with a slot, a second track and a third track. The distance from the second track to the center of the limiting frame is less than the distance from the third track to the center of the limiting frame. The second roller is made of an elastic and wear-resistant material, and the second roller is provided with a first limiting roller and a second limiting roller; The rotating shaft comprises three parts: a first rotating shaft, a second rotating shaft, and a third rotating shaft.
2. The roller mechanism as described in claim 1, characterized in that, The slot of the limiting frame engages with the buckle on the first track, and the second and third tracks of the limiting frame are fixed in the through hole of the first track.
3. The roller mechanism as described in claim 1, characterized in that, The inner diameter of the second rotating shaft is smaller than the inner diameter of the first rotating shaft, and the inner diameter of the second rotating shaft is larger than the inner diameter of the third rotating shaft.
4. The roller mechanism as described in claim 1, characterized in that, The first roller rotates on the second rotating shaft, and the second roller rotates on the third rotating shaft.
5. The roller mechanism as described in claim 1, characterized in that, The first limiting roller cannot pass through the limiting frame.
6. The roller mechanism as described in claim 1, characterized in that, The outer diameter of the second limiting roller is smaller than the distance between the second track and the third track, and the second limiting roller can only roll on the second track.
7. The roller mechanism as described in claim 1, characterized in that, The roller mechanism can be installed in two ways: top-mounted and bottom-mounted.
8. The roller mechanism as described in claim 1 or 7, characterized in that, When the roller mechanism is in the top-suspended installation mode, the second track is located above the third track, the top of the first roller does not contact the top of the first track, the bottom of the first roller contacts the bottom of the first track, the top of the second limiting roller contacts the second track, and the bottom of the second limiting roller does not contact the third track.
9. The roller mechanism as described in claim 1 or 7, characterized in that, When the roller mechanism is in the under-mounted installation mode, the second track is located below the third track, the top of the first roller is in contact with the top of the first track, the bottom of the first roller is not in contact with the bottom of the first track, the top of the second limiting roller is not in contact with the third track, and the bottom of the second limiting roller is in contact with the second track.
10. A vehicle seat, characterized in that, The vehicle seat includes any one of the roller mechanisms described in claims 1-9.