Front-row four-connecting-rod movement mechanism
By designing a four-link motion mechanism in the front row, the problem of limited adjustment range of traditional seat adjustment mechanisms is solved, enabling precise adjustment of seat height and structural simplification, meeting the needs of drivers of different heights, and improving driving comfort and safety.
Patent Information
- Application Number
- CN202520371999.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Traditional front seat adjustment mechanisms have a limited range of adjustment, which cannot meet the personalized needs of drivers of different heights. Furthermore, insufficient adjustment precision and complex structure lead to high maintenance difficulty and increased costs.
Design a front row four-bar linkage motion mechanism, including a support base, a drive mechanism, a transmission plate, a driven component, a side plate, and a seat cushion. Drive the transmission plate and the driven component by a drive motor to achieve precise height adjustment of the seat cushion, expand the lifting range, and improve adjustment accuracy.
The seat height adjustment range has been significantly expanded, the adjustment accuracy has been improved, the structure has been simplified, the maintenance difficulty and cost have been reduced, and the stability and safety of the seat have been enhanced to meet the needs of different drivers.
Smart Images

Figure CN223850467U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile seat, especially to a front row four-bar linkage motion mechanism. BACKGROUND
[0002] In the design of automobile seats, the comfort and adjustment function of the front row seats play a crucial role, as they directly affect the driving experience of the driver. To enhance the flexibility of seat adjustment and the comfort of sitting, the four-bar linkage motion mechanism emerges as the times require, which is an advanced seat adjustment system designed to provide drivers with more precise and diverse options for adjusting the position of the seat.
[0003] Traditional front row seat adjustment mechanisms, although to some extent can meet the basic seat adjustment needs, but still have some significant deficiencies. First, the adjustment range is limited, and the traditional mechanism can only provide a limited lifting range, which is difficult to meet the individual needs of drivers of different heights. Second, the adjustment accuracy is insufficient, and the seat may have a large gap or inaccurate adjustment during lifting, which not only affects the comfort of driving, but also may pose a potential threat to driving safety. Finally, the structure of the traditional adjustment mechanism is often complex, which not only increases the difficulty of maintenance and repair, but also leads to the rise of manufacturing costs. SUMMARY
[0004] The utility model aims at providing a front row four-bar linkage motion mechanism, which aims to solve the problem that the traditional seat adjustment mechanism may only provide a limited lifting range and cannot meet the needs of drivers of different heights.
[0005] To achieve the above-mentioned purpose, the utility model provides a front row four-bar linkage motion mechanism, which comprises two support bases, a driving mechanism, two transmission plates, a driven assembly, two side plates and a seat cushion; the driving mechanism is installed on the two support bases, the two transmission plates are respectively installed on the driving mechanism, the driven assembly is installed on the two support bases, the two side plates are respectively connected with the two transmission plates in rotation and are respectively connected with the driven assembly, and the seat cushion is fixedly connected with the two side plates and is located on the two side plates.
[0006] Among them, the support base comprises a horizontal plate and two connecting seats, the horizontal plate is connected with the transmission plate in rotation and is located on one side of the transmission plate, and the two connecting seats are respectively fixedly connected with the horizontal plate and are located on the side of the horizontal plate away from the transmission plate.
[0007] Among them, the driving mechanism comprises a driving motor and a rotating shaft, the driving motor is fixedly connected with the horizontal plate and is located on one side of the horizontal plate, and the rotating shaft is fixedly connected with the output end of the driving motor and is fixedly connected with the two transmission plates.
[0008] The driven assembly comprises a driven rod and two driven plates, the driven rod is fixedly connected with the two side plates and located between the two side plates, and the two driven plates are respectively fixed with the driven rod and rotationally connected with the horizontal plate.
[0009] The front row four-bar linkage mechanism further comprises a first reinforcing rod and a second reinforcing rod, the first reinforcing rod is fixedly connected with the two transmission plates and located between the two transmission plates, and the second reinforcing rod is fixedly connected with the two side plates and located between the two side plates.
[0010] The front row four-bar linkage mechanism of the utility model, two support bases provide installation conditions for the driving mechanism, the two transmission plates and the driven assembly, when it is needed to adjust the height of the cushion, the driving mechanism is started, the driving mechanism drives the two transmission plates to rotate, the two rotating plates drive the two side plates to move away from the support base, the two side plates drive the cushion to move away from the support base, and the height adjustment of the cushion is completed until the cushion moves to a preset height. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.
[0012] Fig. 1 is a structural schematic view of the front row four-bar linkage mechanism of the utility model.
[0013] Fig. 2 is a structural schematic view of the front row four-bar linkage mechanism of the utility model in another direction.
[0014] In the figure: 1-transmission plate, 2-side plate, 3-cushion, 4-horizontal plate, 5-connection seat, 6-driving motor, 7-rotating shaft, 8-driven rod, 9-driven plate, 10-first reinforcing rod, 11-second reinforcing rod. DETAILED DESCRIPTION
[0015] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein like or similar elements are denoted by the same or similar reference signs throughout the drawings. The embodiments described below are exemplary and are intended to be illustrative of the present application, and are not to be construed as limiting the present application.
[0016] Please refer to Figs. 1-2 The utility model provides a front row four connecting rod movement mechanism, including two support base, drive mechanism, two transmission plate 1, driven assembly, two side plates 2 and cushion 3, drive mechanism installs on two support base, two transmission plate 1 installs on drive mechanism respectively, driven assembly installs on two support base, two side plates 2 are connected with two transmission plate 1 rotation respectively, and are connected with driven assembly respectively, cushion 3 is fixedly connected with two side plates 2, and is located two side plates 2.
[0017] In the embodiment, two support base provide installation condition for drive mechanism, two transmission plate 1 and driven assembly, when needing to carry out height adjustment to cushion 3, start drive mechanism, drive mechanism work drive two transmission plate 1 rotation, two rotating plate cooperate driven assembly and drive two side plates 2 to the side away from support base, two side plates 2 drive cushion 3 to the side away from support base, until the height adjustment to cushion 3 can be completed after cushion 3 moves to the preset height, the utility model discloses the design of four connecting rod mechanism, significantly expands the lifting adjustment range of seat, so that the driver of different height can find suitable seat height, thereby satisfying the demand of individualization. Thus solve the problem that traditional seat adjusting mechanism can only provide limited lifting range and cannot meet the needs of drivers of different heights.
[0018] Further, the support base includes a horizontal plate 4 and two connecting seats 5, the horizontal plate 4 is rotatably connected with the transmission plate 1 and located on one side of the transmission plate 1, and the two connecting seats 5 are fixedly connected with the horizontal plate 4 and located on the side of the horizontal plate 4 away from the transmission plate 1.
[0019] In the embodiment, the horizontal plate 4 can be installed on the vehicle body through the two connecting seats 5, and the horizontal plate 4 provides installation conditions for the two transmission plates 1.
[0020] Further, the drive mechanism includes a drive motor 6 and a rotating shaft 7, the drive motor 6 is fixedly connected with the horizontal plate 4 and located on one side of the horizontal plate 4, and the rotating shaft 7 is fixedly connected with the output end of the drive motor 6 and fixedly connected with the two transmission plates 1.
[0021] In the embodiment, the driving motor 6 can drive the rotation of the rotating shaft 7, and the rotation of the rotating shaft 7 can drive the rotation of the two transmission plates 1.
[0022] Further, the driven assembly comprises a driven rod 8 and two driven plates 9, the driven rod 8 is fixedly connected with the two side plates 2 and located between the two side plates 2, and the two driven plates 9 are respectively fixed with the driven rod 8 and rotationally connected with the horizontal plate 4.
[0023] In the embodiment, the driven rod 8 provides mounting conditions for the two driven plates 9, and when the two side plates 2 move, the two driven plates 9 on the driven rod 8 can be driven to rotate, thereby supporting the two side plates 2 and improving the stability of the two side plates 2.
[0024] Further, the front four-bar linkage mechanism further comprises a reinforcing rod one 10 and a reinforcing rod two 11, the reinforcing rod one 10 is fixedly connected with the two transmission plates 1 and located between the two transmission plates 1, and the reinforcing rod two 11 is fixedly connected with the two side plates 2 and located between the two side plates 2.
[0025] In the embodiment, the reinforcing rod one 10 can improve the support strength between the two transmission plates 1, and the reinforcing rod two 11 can improve the support strength between the two side plates 2.
[0026] When it is necessary to adjust the height of the cushion 3, the driving motor 6 is started, the driving motor 6 drives the rotation of the rotating shaft 7, the rotating shaft 7 drives the rotation of the two transmission plates 1, the two transmission plates cooperate with the two driven plates 9 on the driven rod 8 to drive the two side plates 2 to move away from the support base, and the two side plates 2 drive the cushion 3 to move away from the support base until the cushion 3 moves to a preset height, thereby completing the height adjustment of the cushion 3.
[0027] Advantages:
[0028] I. Expand the adjustment range:
[0029] Through the design of the four-bar linkage mechanism, the lifting adjustment range of the seat is significantly expanded, so that drivers of different heights can find a suitable seat height, thereby meeting the individual needs.
[0030] II. Improved adjustment accuracy:
[0031] The four-bar linkage mechanism ensures stability and accuracy during the lifting process of the seat, reducing the problem of clearance and inaccurate adjustment, and improving the comfort and safety of driving.
[0032] III. Simplified structural design:
[0033] Although the four-bar linkage mechanism provides more complex motion control, its design aims to simplify the overall structure, reduce manufacturing costs, and facilitate maintenance and repair, improving the reliability and durability of the structure.
[0034] IV. Enhancing seat stability:
[0035] The four-bar linkage mechanism ensures stability in various positions while providing adjustment functions, reducing shaking during driving, and improving safety.
[0036] V. Adaptability to diverse needs:
[0037] The design of the four-bar linkage mechanism takes into account the needs of different drivers, providing appropriate seat positions for both daily driving and special occasions, enhancing the adaptability of the seat.
[0038] VI. Reducing maintenance costs:
[0039] The design of the four-bar linkage mechanism simplifies the maintenance and repair process, reduces maintenance costs, and also reduces the risk of failure due to improper maintenance.
[0040] The above disclosure is only one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments and the equivalent changes made in accordance with the claims of the present application still fall within the scope covered by the present application.
Claims
1. A front row four-bar linkage motion mechanism, characterized in that, it comprises two support bases, a driving mechanism, two transmission plates, a driven assembly, two side plates and a cushion; the driving mechanism is installed on the two support bases, the two transmission plates are respectively installed on the driving mechanism, the driven assembly is installed on the two support bases, the two side plates are respectively connected with the two transmission plates in rotation and are respectively connected with the driven assembly, and the cushion is fixedly connected with the two side plates and is located on the two side plates.
2. The front row four-bar linkage motion mechanism according to claim 1, characterized in that, the support base comprises a horizontal plate and two connecting seats, the horizontal plate is connected with the transmission plate in rotation and is located on one side of the transmission plate, and the two connecting seats are respectively fixedly connected with the horizontal plate and are located on the side of the horizontal plate away from the transmission plate.
3. The front row four-bar linkage motion mechanism according to claim 2, characterized in that, the driving mechanism comprises a driving motor and a rotating shaft, the driving motor is fixedly connected with the horizontal plate and is located on one side of the horizontal plate, and the rotating shaft is fixedly connected with the output end of the driving motor and is fixedly connected with the two transmission plates.
4. The front row four-bar linkage motion mechanism according to claim 3, characterized in that, the driven assembly comprises a driven rod and two driven plates, the driven rod is fixedly connected with the two side plates and is located between the two side plates, and the two driven plates are respectively fixedly connected with the driven rod and are respectively connected with the horizontal plate in rotation.
5. The front row four-bar linkage motion mechanism according to claim 1, characterized in that, the front row four-bar linkage motion mechanism further comprises a reinforcing rod one and a reinforcing rod two, the reinforcing rod one is fixedly connected with the two transmission plates and is located between the two transmission plates, and the reinforcing rod two is fixedly connected with the two side plates and is located between the two side plates.