Seat adjusting device and passenger car seat comprising same
By using the coaxial nesting structure of the guide rod and guide sleeve and the design of the guide seat assembly, the stability and durability issues during the lateral movement of the seat are solved, enabling stable and smooth lateral movement of the seat and improving riding comfort and privacy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN GOLDEN DRAGON AUTO SEAT
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-26
AI Technical Summary
Existing seat adjustment devices suffer from problems such as foreign object intrusion, poor lateral stiffness, structural peeling, and high frictional loss during lateral movement, which affect the stability and durability of the seat.
The guide rod and guide sleeve adopt a coaxial nested structure, combined with the fixation and interference fit of the guide seat assembly, to ensure smooth sliding of the guide rod. The spiral groove stores lubricating material to reduce friction, and the guide seat assembly provides stable support to ensure the lateral movement of the seat.
This allows for stable and smooth lateral movement of the seat, improving passenger comfort and privacy, while also extending the device's lifespan and reducing maintenance costs.
Smart Images
Figure CN224276894U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of seat adjustment devices, and particularly to a seat adjustment device and a bus seat including the same. Background Technology
[0002] To meet the aisle clearance requirements of the vehicle, the width of the seats is limited. When passengers are slightly larger, they may have physical contact with their neighbors, which affects their comfort. Therefore, the seats need to be moved outward to avoid contact, improve personal privacy, and enhance comfort.
[0003] However, existing technologies generally use a sliding rail transverse structure, which relies on the cyclic rolling of balls to achieve translation, but it has the following drawbacks: the open design is prone to foreign object intrusion, poor lateral stiffness (track gap of up to 0.5mm) causes shaking; misalignment of the upper and lower rails can easily cause structural peeling; the ball friction loss is large, requiring additional anti-derailment devices, which affects the overall stability and durability of the seat movement.
[0004] Therefore, the above-mentioned problems urgently need to be addressed. Summary of the Invention
[0005] To address the aforementioned problems, this application provides a seat adjustment device and a passenger seat including the same, comprising:
[0006] The seat frame comprises at least two, and the at least two seat frames are arranged parallel, opposite, and spaced apart;
[0007] The lateral movement mechanism includes a guide rod and a guide sleeve. The guide rod and the guide sleeve are arranged in parallel. The guide rod is coaxially nested inside the guide sleeve. The guide sleeve is disposed on the seat frame. The guide rod is connected to the seat. The guide rod can slide to drive the seat to move laterally relative to the guide sleeve.
[0008] Preferably, the seat adjustment device further includes a guide seat group, and the number of the guide seat groups is multiple. The multiple guide seat groups are arranged sequentially at intervals along the lateral movement direction of the seat, and each guide seat group is fixedly disposed between adjacent seat frames.
[0009] Each guide seat group includes two guide seats, which are symmetrically and oppositely arranged. A connecting plate is provided between the two guide seats to connect them. The guide sleeve is disposed inside the guide seat to fix the transverse movement mechanism.
[0010] Preferably, the guide seat has an outer square and inner circle structure.
[0011] Preferably, the inner circular surface of the guide seat and the guide sleeve are interference fit.
[0012] Preferably, the lateral travel of the guide rod is equal to the difference between the center distance between adjacent guide seat groups and the length of the guide sleeve.
[0013] Preferably, the inner wall of the guide sleeve is provided with a spiral groove for storing lubricating material.
[0014] Preferably, the end of the guide rod is provided with an embedded thread, and the seat is fixed to the guide rod by means of a bolt and the embedded thread.
[0015] Preferably, the end of the guide rod is provided with a guide chamfer to provide guidance for the insertion of the bolt.
[0016] Preferably, the guide rod is subjected to heat hardening treatment.
[0017] A passenger seat, including the seat adjustment device as described in any of the preceding claims.
[0018] Based on the above technical solution, the seat adjustment device and the bus seat including the same described in this application have the following beneficial effects:
[0019] By setting at least two parallel, opposite, and spaced-apart seat frames, a stable support structure can be provided for the entire seat adjustment device, ensuring the fixation of the guide sleeve and the smooth sliding of the guide rod. Therefore, through the cooperation of the guide rod and the guide sleeve, based on the coaxial nesting telescopic principle of the guide rod, the seat can move laterally along the direction of the guide rod, thereby conveniently adjusting the spacing between seats. Furthermore, by adjusting the seat spacing, passengers can adjust the seat position according to their needs, avoiding physical contact. Especially on public transportation, this can significantly improve passenger comfort and privacy.
[0020] In summary, this seat adjustment device achieves lateral movement of the seat through a simple mechanical structure, effectively improving seating comfort and privacy while ensuring structural stability and ease of operation. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0022] Figure 1 This is a partial structural schematic diagram of the seat adjustment device provided in the embodiments of this application.
[0023] Figure 2 This is a schematic diagram of the overall structure of the seat adjustment device provided in the embodiments of this application.
[0024] Figure 3 yes Figure 2 The diagram at point AA is shown in the image.
[0025] Figure 4 yes Figure 3 Enlarged view of the structure at point B in the image.
[0026] The reference numerals in the attached drawings are as follows: 100, seat adjustment device; 11, seat frame; 12, lateral movement mechanism; 121, guide rod; 122, guide sleeve; 13, guide seat; 14, connecting plate; 15, bolt; 200, seat bracket; X, lateral movement direction of the seat. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0028] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.
[0029] like Figures 1-4 The present application discloses a seat adjustment device 100 for laterally moving a seat, wherein the seat adjustment device 100 includes:
[0030] There are at least two seat frames 11, and the at least two seat frames 11 are arranged in parallel, opposite to each other and spaced apart;
[0031] The lateral movement mechanism 12 includes a guide rod 121 and a guide sleeve 122. The guide rod 121 and the guide sleeve 122 are arranged in parallel. The guide rod 121 is coaxially nested in the guide sleeve 122. The guide sleeve 122 is disposed on the seat frame 11. The guide rod 121 is connected to the seat (shown in the figure as a seat bracket 200, and the seat is fixed by the seat bracket 200 and the guide rod 121). The guide rod 121 can slide to drive the seat to move laterally relative to the guide sleeve 122.
[0032] Understandably, at least two seat frames 11 are arranged parallel, opposite and spaced apart to support and fix the guide sleeve 122, ensuring the stability of the overall structure of the seat adjustment device 100; the guide rod 121 is directly connected to the seat and can slide within the guide sleeve 122, realizing the lateral movement of the seat; the guide sleeve 122 is fixed on the seat frame 11, providing guidance and support for the guide rod 121, ensuring smooth sliding without deviation.
[0033] In this embodiment, the working principle of the seat adjustment device 100 is as follows: when the seat position needs to be adjusted, the user applies a lateral force, the guide rod 121 slides in the guide sleeve 122, driving the seat to move laterally, thereby adjusting the seat spacing, avoiding physical contact between passengers, and improving comfort and privacy.
[0034] Therefore, by setting at least two parallel, opposite, and spaced-apart seat frames 11, a stable support structure can be provided for the entire seat adjustment device 100, ensuring the fixation of the guide sleeve 122 and the smooth sliding of the guide rod 121. Thus, through the cooperation of the guide rod 121 and the guide sleeve 122, based on the coaxial nesting telescopic principle of the guide rod 121, the seat can move laterally along the direction of the guide rod 121, thereby conveniently adjusting the spacing between seats. Furthermore, by adjusting the seat spacing, passengers can adjust the seat position according to their needs, avoiding limb contact, which can significantly improve passenger comfort and privacy, especially on public transportation.
[0035] In summary, the seat adjustment device 100 achieves lateral movement of the seat through a simple mechanical structure, effectively improving riding comfort and privacy, while ensuring structural stability and ease of operation.
[0036] like Figures 1-2 As shown, the seat adjustment device 100 also includes a guide seat group, and there are multiple guide seat groups. The multiple guide seat groups are arranged sequentially at intervals along the lateral movement direction X of the seat, and each guide seat group is fixedly arranged between adjacent seat frames 11.
[0037] Each guide seat group includes two guide seats 13, which are symmetrically arranged and opposite to each other. A connecting plate 14 is provided between the two guide seats 13 for connecting the two guide seats 13. The guide sleeve 122 is disposed inside the guide seat 13 for fixing the transverse mechanism 12.
[0038] Understandably, guide seat groups (multiple in number) are arranged sequentially at intervals along the lateral movement direction X of the seat and fixed between adjacent seat frames 11 to stably support the guide sleeves 122; each guide seat group includes two guide seats 13, which are symmetrically and oppositely arranged to ensure balanced force on the seat; the connecting plate 14 is used to connect the two guide seats 13 to enhance overall rigidity and prevent deformation; the guide sleeves 122 are set inside the guide seats 13 to ensure the stable operation of the lateral movement mechanism 12.
[0039] In this embodiment, there are two guide seat groups, and the total number of guide seats 13 is four.
[0040] Understandably, when the seat needs to move laterally, the guide rod 121 slides within the guide sleeve 122, while the guide seat assembly provides stable support, ensuring that the guide rod 121 does not deviate or wobble, making the seat movement smoother and more precise.
[0041] Preferably, the guide seat 13 is welded to the seat frame 11 to enhance the reliability of the connection; it is made of high-strength steel or aluminum alloy to reduce weight while ensuring strength; the inner hole of the guide seat 13 and the guide sleeve 122 are fixed by interference fit or bolt 15 to ensure that the guide sleeve 122 does not loosen.
[0042] Preferably, the connecting plate 14 is fixed to the guide seat 13 by laser welding or bolts 15 to improve structural stability; the connecting plate 14 can be designed as a U-shaped or H-shaped structure to enhance torsional resistance.
[0043] Preferably, the maximum stroke of the guide rod 121 is limited by limiting the spacing of the guide seat assembly to prevent it from coming off; a buffer pad can be provided at the end of the guide rod 121 to reduce impact noise.
[0044] Therefore, by adopting the above-described structural form, the introduction of the guide seat assembly provides more stable support for the guide sleeve 122. Each guide seat assembly includes two symmetrically arranged guide seats 13, with the guide sleeve 122 disposed within the guide seats 13. This ensures that the guide sleeve 122 remains stable during lateral movement, preventing it from wobbling or shifting. Furthermore, the precise design and installation of the guide seat assembly ensures the accurate position of the guide sleeve 122, thereby ensuring the accuracy and smoothness of the guide rod 121 sliding within the guide sleeve 122. This makes the movement of the guide rod 121 more stable, avoiding jamming or shifting, and improving the accuracy and reliability of the seat's lateral movement. In addition, multiple guide seat assemblies are arranged sequentially and at intervals along the lateral movement direction X of the seat, which can distribute the force generated during lateral movement to each guide seat assembly, avoiding local overload and thus extending the service life of the lateral movement mechanism 12 and the entire seat adjustment device 100.
[0045] In a preferred embodiment, the guide seat 13 has an outer square and inner circle structure.
[0046] It is understood that the guide seat 13 has an outer square (or rectangular) frame and an inner circular hole for fixing the guide sleeve 122.
[0047] The purpose of this design is twofold: the outer square structure facilitates welding or bolting 15 to the seat frame 11, improving assembly accuracy; welding bevels can be provided at the four corners to enhance welding strength and reduce deformation; and the square structure is easier to process and position than a circular one, making it suitable for mass production. The inner circular structure provides uniform stress support, reducing the risk of uneven wear when the guide rod 121 slides. Furthermore, this design allows for the enclosed treatment of the transverse movement mechanism 12, effectively preventing the intrusion of foreign objects.
[0048] In a preferred embodiment, the inner circular surface of the guide seat 13 and the guide sleeve 122 are interference fit to ensure that the guide sleeve 122 does not loosen.
[0049] In this embodiment, the lateral travel of the guide rod 121 is equal to the difference between the center distance between adjacent guide seat groups and the length of the guide sleeve 122. The lateral travel of the guide rod 121 refers to the maximum distance that the guide rod 121 can slide within the guide sleeve 122, which is the maximum range of lateral movement that the seat can make.
[0050] In other embodiments, mechanical limiting can be achieved by calculating the stroke of the guide rod 121 and reasonably arranging the spacing of the guide seats 13 to prevent the guide rod 121 from coming off.
[0051] Therefore, by setting the center spacing of the guide seat assemblies and the length of the guide sleeve 122, the lateral travel of the guide rod 121, that is, the lateral movement range of the seat, can be precisely controlled. This ensures that the seat will not exceed the predetermined safety or comfort range during adjustment. Furthermore, the length of the guide sleeve 122 is typically slightly less than the center spacing of adjacent guide seat assemblies. This design ensures that even when the guide rod 121 slides to its limit position, a portion of the guide rod 121 remains within the guide sleeve 122, thus preventing the guide rod 121 from detaching from the guide sleeve 122 and guaranteeing safety during use.
[0052] In a preferred embodiment, the inner wall of the guide sleeve 122 is provided with a spiral groove, which is used to store lubricating material.
[0053] Understandably, the spiral grooves are used to store grease or lubricating oil to form a continuous lubricating film, and the spiral structure can also guide the lubricating material to spread evenly along the sliding direction of the guide rod 121.
[0054] Therefore, by adopting the above-described structural form, the spiral groove can store a certain amount of lubricating material. During the relative movement of the guide rod 121 and the guide sleeve 122, the lubricating material is gradually released onto the contact surface, forming a lubricating film. This significantly reduces the friction between the guide rod 121 and the guide sleeve 122, making the lateral movement of the seat smoother and less strenuous. Furthermore, the presence of the lubricating film effectively reduces the direct contact between the guide rod 121 and the guide sleeve 122, thereby reducing wear, extending the service life of the guide rod 121 and the guide sleeve 122, reducing the frequency of maintenance and replacement, and lowering long-term operating costs. In addition, the lubricating material in the spiral groove can also play a certain role in buffering and shock absorption, reducing impact and noise during movement and improving riding comfort.
[0055] like Figure 4 As shown, the end of the guide rod 121 is provided with an embedded thread, and the seat is fixed to the guide rod 121 by the connection between the bolt 15 and the embedded thread.
[0056] Understandably, the seat can be securely fixed to the guide rod 121 through the engagement of bolt 15 and the embedded thread.
[0057] Therefore, by adopting the above-described structural form, the seat can be firmly fixed to the guide rod 121 through the connection of bolt 15 and embedded thread, and it is not easy to loosen or fall off even when bearing a large weight or being subjected to external impact. Furthermore, the embedded thread design allows the thread to be hidden inside the guide rod 121, without increasing the external dimensions of the guide rod 121, thus maintaining the compactness of the guide rod 121.
[0058] In a preferred embodiment, the end of the guide rod 121 is provided with a guide chamfer to provide guidance for the insertion of the bolt 15.
[0059] Understandably, a tapered or beveled chamfer is machined at the inlet of the threaded hole at the end of the guide rod 121. This chamfer has a smooth transition and connects with the inner wall of the threaded hole. When the bolt 15 is inserted into the threaded hole at the end of the guide rod 121, the guide chamfer can guide the head or screw part of the bolt 15 to smoothly align and enter the threaded hole, avoiding interference or misalignment between the bolt 15 and the threaded hole wall during the insertion process.
[0060] Therefore, by adopting the above-mentioned structural form, the guide chamfer makes it easier to align and position the bolt 15 when it is inserted into the threaded hole. Even if it is not perfectly aligned, the head or threaded part of the bolt 15 can slide into the threaded hole along the inclined surface of the guide chamfer, thereby simplifying the installation process, improving installation efficiency, reducing errors in the installation process, and improving assembly accuracy.
[0061] As a preferred embodiment, the guide rod 121 is subjected to heat hardening treatment.
[0062] The heat treatment refers to the metal heat treatment process applied to the guide rod 121 to obtain a material with high hardness, high strength, and high toughness.
[0063] In this embodiment, the guide rod 121 is made of 42CrMo quenched and tempered steel to improve its strength and wear resistance.
[0064] Therefore, by adopting the above-described structural form, the heat treatment can significantly improve the strength and hardness of the guide rod 121, enabling it to withstand greater loads and pressures without easily deforming or breaking. Furthermore, the heat-treated guide rod 121 has a higher surface hardness and better wear resistance, resisting friction from the inner wall of the guide sleeve 122 and extending its service life. In addition, the heat treatment also makes the dimensions of the guide rod 121 more stable, reducing deformation during use and ensuring the accuracy and reliability of the seat adjustment device 100.
[0065] In this application embodiment, a bus seat is also disclosed, the bus seat including the seat adjustment device 100 described in any of the above claims.
[0066] This application also discloses an assembly method for a passenger car seat lateral displacement adjustment structure, the assembly method including at least the following steps:
[0067] S1. The four guide seats 13 are symmetrically welded to both sides of the seat frame 11, and the connecting plate 14 is welded between the guide seats 13 on the same side;
[0068] S2. Press the injection-molded self-lubricating guide sleeve 122 into the inner hole of the guide seat 13;
[0069] S3. Perform guide chamfering and quenching and tempering heat treatment on both ends of the guide rod 121;
[0070] S4. Insert the guide rod 121 into the guide sleeve 122, and install the seat by assembling the two ends with internal threads and bolts 15.
[0071] Preferably, in step S2, the guide sleeve 122 needs to be pre-applied with grease in its spiral groove before pressing.
[0072] The foregoing description has fully disclosed the specific embodiments of this application. It should be noted that any modifications made by those skilled in the art to the specific embodiments of this application do not depart from the scope of the claims. Accordingly, the scope of the claims of this application is not limited to the foregoing specific embodiments.
Claims
1. A seat adjustment device, characterized in that, It includes: The seat frame (11) is at least two, and the at least two seat frames (11) are arranged in parallel, opposite and spaced apart; The lateral movement mechanism (12) includes a guide rod (121) and a guide sleeve (122). The guide rod (121) and the guide sleeve (122) are arranged in parallel. The guide rod (121) is coaxially nested in the guide sleeve (122). The guide sleeve (122) is disposed on the seat frame (11). The guide rod (121) is connected to the seat. The guide rod (121) can slide to drive the seat to move laterally relative to the guide sleeve (122).
2. The seat adjustment device according to claim 1, characterized in that, The seat adjustment device (100) further includes a guide seat (13) group. There are multiple guide seat (13) groups, which are arranged sequentially at intervals along the lateral movement direction of the seat. Each guide seat (13) group is fixedly arranged between adjacent seat frames (11). Each group of guide seats (13) includes two guide seats (13), which are symmetrically arranged and opposite to each other. A connecting plate (14) is provided between the two guide seats (13) for connecting the two guide seats (13). The guide sleeve (122) is arranged inside the guide seat (13) for fixing the transverse mechanism (12).
3. The seat adjustment device according to claim 2, characterized in that, The guide seat (13) has an outer square and inner circle structure.
4. The seat adjustment device according to claim 2 or 3, characterized in that, The inner circular surface of the guide seat (13) and the guide sleeve (122) are interference fit.
5. The seat adjustment device according to claim 2, characterized in that, The lateral travel of the guide rod (121) is equal to the difference between the center distance of adjacent guide seat (13) groups and the length of the guide sleeve (122).
6. The seat adjustment device according to claim 1, characterized in that, The inner wall of the guide sleeve (122) is provided with a spiral groove, which is used to store lubricating material.
7. The seat adjustment device according to claim 1, characterized in that, The end of the guide rod (121) is provided with an embedded thread, and the seat is fixed to the guide rod (121) by connecting the bolt (15) and the embedded thread.
8. The seat adjustment device according to claim 7, characterized in that, The end of the guide rod (121) is provided with a guide chamfer to provide guidance for the insertion of the bolt (15).
9. The seat adjustment device according to claim 1, characterized in that, The guide rod (121) is heat-hardened.
10. A passenger car seat, characterized in that, Includes the seat adjustment device (100) as described in any one of claims 1-9.