High-strength internally-driven small table plate four-connecting-rod mechanism
By using a high-strength internal drive small table four-bar linkage mechanism, combined with a four-bar linkage mechanism and electric drive, the problems of cumbersome operation, insufficient stability and large space occupation of traditional seat small tables are solved, realizing efficient space utilization and stable folding in the intelligent cockpit of the car.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional car seat tray tables suffer from problems such as cumbersome operation, large space occupation, insufficient stability, and inflexible movement trajectory. They are especially prone to shaking on bumpy roads, making it difficult to achieve a balance between stable unfolding and compact storage within a limited space.
It adopts a high-strength internal drive small table four-bar linkage mechanism, combining the motion characteristics of the four-bar linkage mechanism with electric drive, and realizes the folding of the table and high load-bearing stability through the design of motor drive shaft and linkage, and realizes one-button operation through auxiliary electronic control unit.
It provides rigidity when unfolded and a snug fit when folded, improving the user experience, reducing space occupation, ensuring the consistency and stability of the table tray position after each fold, and avoiding noise generation.
Smart Images
Figure CN224013460U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of folding seat small table board, and specifically relates to a high-strength inner drive small table board four-bar linkage mechanism. BACKGROUND
[0002] With the continuous improvement of the intelligentization and comfort demand of automobile, the interior function of passenger car gradually develops towards the direction of multifunction, space optimization and humanized design. Among them, the small table board of automobile seat as an auxiliary part of office, entertainment or food has wide application demand in business car type, family MPV and long-distance travel scene. The traditional small table board mostly adopts manual folding or slide rail structure, and has problems of complicated operation, large space occupation, insufficient stability and the like, especially easy to produce shaking under the bumpy road condition, which influences the use experience.
[0003] In recent years, the electric adjustment technology is introduced into the field of automobile interior, but the existing electric small table board mostly adopts linear motor or simple hinge structure, and has defects of inflexible movement track, large space occupation or insufficient structural strength during unfolding / folding. In addition, the traditional mechanism lacks the dynamic adaptation ability to the seat space, and it is difficult to realize the balance of stable unfolding and compact storage in the limited space. UTILITARY MODEL
[0004] The utility model provides a high-strength inner drive small table board four-bar linkage mechanism, and the mechanism utilizes the movement characteristics of four-bar linkage mechanism to overcome the shortcomings of traditional table board storage mechanism, and provides a more efficient space solution for the intelligent cabin of automobile.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a high-strength inner drive small table board four-bar linkage mechanism, which comprises: a mounting seat, the mounting seat is fixedly connected with the back of a seat through a positioning pin and a mounting hole, and the top and bottom of the mounting seat are respectively provided with an upper hinge seat and a lower hinge seat; a table board bracket, the table board bracket is arranged on the side of the mounting seat away from the seat, and a motor is arranged at the bottom of the table board bracket, drive shafts are arranged at the two ends of the motor respectively, shaft heads are arranged at the two sides of the middle part of the table board bracket respectively, and the distance between the shaft heads and the drive shafts is less than the distance between the upper hinge seat and the lower hinge seat; a lower connecting rod, one end of the lower connecting rod is connected with the drive shaft perpendicularly, and the other end is hingedly matched with the lower hinge seat; and an upper connecting rod, the upper connecting rod is hingedly connected between the shaft head and the upper hinge seat, and the length of the upper connecting rod is greater than that of the lower connecting rod.
[0006] Preferably, the upper connecting rod and the lower connecting rod are both in wave shape structure, and the top ends of the upper connecting rod and the lower connecting rod are offset to the direction of the mounting seat.
[0007] Preferably, the bottom of the upper connecting rod is located on the side of the top of the lower connecting rod away from the mounting seat.
[0008] Preferably, the overlapping area of the upper connecting rod and the lower connecting rod is respectively provided with a supporting boss.
[0009] Preferably, a torsional spring is arranged between the top end of the upper connecting rod and the upper hinge seat.
[0010] The upper connecting rod, the lower connecting rod and the hinge seat and the table board bracket constitute a four-connecting-rod mechanism, and the four-connecting-rod mechanism is kinematically optimized, and the motor in the table board bracket is combined to realize folding and high-load-bearing stability of the table board bracket. The mechanism can provide rigidity when unfolded, and is attached to the back of the seat when folded, and one-key operation function is realized through an auxiliary electric control unit, thereby significantly improving user experience. Therefore, the mechanism integrates the motion characteristics of the four-connecting-rod mechanism and the electric drive depth, overcomes the shortcomings of single trajectory and redundant structure of the traditional scheme, and provides a more efficient space solution for an intelligent automobile cabin. Through geometric design, the front end of the upper connecting rod is not higher than the surface of the small table board after the table board bracket is unfolded, so that the use is not hindered, and the upper connecting rod and the lower connecting rod can reduce the space occupied after the table board bracket is folded, thereby avoiding the influence on the sitting space. The supporting boss limits the limit position of the table board bracket in the storage state, thereby ensuring the position consistency of the table board bracket after each folding and storage. The upper connecting rod provides folding and storage pressure for the table board bracket under the action of the torsional spring, thereby eliminating the play of the connecting rod mechanism and the driving mechanism, ensuring good stability of the table board bracket in the storage state, and avoiding noise caused by looseness. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0012] Figure 1 It is a front part schematic view of the overall structure of the present application in the storage state.
[0013] Figure 2 It is a rear part schematic view of the overall structure of the present application in the storage state.
[0014] Figure 3 It is a top part schematic view of the overall structure of the present application in the unfolded state.
[0015] Figure 4 It is a bottom part schematic view of the overall structure of the present application in the unfolded state.
[0016] In the figure: 1, mounting seat; 2, upper hinge seat; 3, lower hinge seat; 4, table board bracket; 5, motor; 6, drive shaft; 7, shaft head; 8, lower connecting rod; 9, upper connecting rod; 10, support boss; 11, torsional spring. DETAILED DESCRIPTION
[0017] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0018] According to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in FIG. 1, a high-strength inner drive small table board four-bar linkage mechanism comprises a mounting seat 1, which is fixedly connected with the back of a seat through a positioning pin and a mounting hole, and the top and bottom of the mounting seat 1 are respectively provided with an upper hinge seat 2 and a lower hinge seat 3; a table board bracket 4, which is arranged on the side of the mounting seat 1 away from the seat, and the bottom of the table board bracket 4 is provided with a motor 5, the two ends of the motor 5 are respectively provided with a drive shaft 6, the middle part of the table board bracket 4 is respectively provided with a shaft head 7 on both sides, and the distance between the shaft head 7 and the drive shaft 6 is less than the distance between the upper hinge seat 2 and the lower hinge seat 3; a lower connecting rod 8, one end of which is connected with the drive shaft 6 perpendicularly, and the other end is hingedly matched with the lower hinge seat 3; and an upper connecting rod 9, which is hingedly connected between the shaft head 7 and the upper hinge seat 2, and the length of the upper connecting rod 9 is greater than that of the lower connecting rod 8.
[0019] In the above arrangement, the table board bracket 4 is used for mounting a small table board, and the back of the seat of the vehicle is provided with a mounting groove matched with the small table board, and the mounting seat 1 is mounted in the mounting groove and externally shielded by a panel to improve the appearance of the external structure. The upper connecting rod 9, the lower connecting rod 8 and the hinge seat and the table board bracket 4 constitute a four-bar linkage mechanism, and the kinematics optimization design of the four-bar linkage mechanism is combined with the motor 5 in the table board bracket 4 to realize the folding and high load-bearing stability of the table board bracket 4. The mechanism can provide rigidity when unfolded and fit the back of the seat when folded, and at the same time realizes one-key operation function through an auxiliary electronic control unit, significantly improving the user experience. Therefore, the mechanism integrates the motion characteristics of the four-bar linkage mechanism and the electric drive depth, overcomes the shortcomings of single trajectory and redundant structure of the traditional scheme, and provides a more efficient space solution for the intelligent cockpit of the automobile.
[0020] The upper connecting rod 9 and the lower connecting rod 8 are both wavy structures, and the top ends of the upper connecting rod 9 and the lower connecting rod 8 are offset towards the mounting base 1. Meanwhile, the bottom of the upper connecting rod 9 is located on the side of the top of the lower connecting rod 8 away from the mounting base 1.
[0021] Through the above geometric design, it is ensured that the front end of the upper connecting rod 9 is not higher than the surface of the small table plate after the table plate bracket 4 is unfolded, so as not to hinder the use, and the upper connecting rod 9 and the lower connecting rod 8 can reduce the occupied space after the table plate bracket 4 is folded, avoiding the influence on the sitting space.
[0022] The overlapping areas of the upper connecting rod 9 and the lower connecting rod 8 are respectively provided with abutting support bosses 10.
[0023] The limit position of the table plate bracket 4 in the storage state is limited by the support boss 10, so as to ensure the position consistency of the table plate bracket 4 after each folding and storage.
[0024] The top end of the upper connecting rod 9 is provided with a torsion spring 11 between the upper connecting rod 9 and the upper hinge base 2.
[0025] Through the setting, the upper connecting rod 9 provides folding and storage pressure for the table plate bracket 4 under the action of the torsion spring 11, so as to eliminate the clearance of the four connecting rod mechanism, ensure the good stability of the table plate bracket 4 in the storage state, and avoid the noise caused by looseness.
[0026] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A high-strength internally driven four-bar linkage mechanism for a small table, characterized in that, include: Mounting seat (1), which is fixedly connected to the back of the seat by a positioning pin and a mounting hole, and the mounting seat (1) is provided with an upper hinge seat (2) and a lower hinge seat (3) at the top and bottom respectively; A table bracket (4) is provided on the side of the mounting base (1) away from the seat, and a motor (5) is provided at the bottom of the table bracket (4). A drive shaft (6) is provided at both ends of the motor (5). A shaft head (7) is provided on both sides of the middle part of the table bracket (4). The distance between the shaft head (7) and the drive shaft (6) is less than the distance between the upper hinge seat (2) and the lower hinge seat (3). The lower connecting rod (8) is perpendicularly connected to the drive shaft (6) at one end and hinged to the lower hinge seat (3) at the other end. The upper connecting rod (9) is hinged between the shaft head (7) and the upper hinge seat (2), and the length of the upper connecting rod (9) is greater than that of the lower connecting rod (8).
2. The high-strength internally driven small table four-bar linkage mechanism according to claim 1, characterized in that: Both the upper connecting rod (9) and the lower connecting rod (8) have a wave-shaped structure, and the top ends of the upper connecting rod (9) and the lower connecting rod (8) are offset towards the mounting base (1).
3. The high-strength internally driven small table four-bar linkage mechanism according to claim 2, characterized in that: The bottom of the upper connecting rod (9) is located on the side of the top of the lower connecting rod (8) away from the mounting base (1).
4. The high-strength internally driven small table four-bar linkage mechanism according to claim 3, characterized in that: The overlapping areas of the upper connecting rod (9) and the lower connecting rod (8) are respectively provided with abutting support bosses (10).
5. The high-strength internally driven small table four-bar linkage mechanism according to claim 4, characterized in that: A torsion spring (11) is provided between the top end of the upper connecting rod (9) and the upper hinge seat (2).