Passenger car seat turnover mechanism and passenger car seat thereof
By setting up an articulated shaft and transmission mechanism on the lower front of the cushion bracket of the passenger car seat, and combining the design of the torsion rod and torsion spring, the existing seat flip mechanism has been solved, and the lightweight is achieved And space-saving seat flip effect, reducing energy consumption and cost.
Patent Information
- Application Number
- CN202421780348.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing passenger car seat flip mechanism is large and takes up a large space, making it difficult to achieve lightweight and space saving design. At the same time, when achieving bidirectional 180-degree flip, two assist springs are needed, resulting in too large horizontal space occupied and encroaching on passengers. space.
Design a passenger car seat flip mechanism, by setting a hinged shaft on the front and lower part of the seat cushion bracket to hinge the body mounting bracket, and using a transmission mechanism to drive the seat cushion bracket and the backrest bracket to rotate, combining the design of the torsion rod and torsion spring, Lightweight and space-saving seat flip.
A lightweight, small space-consuming and compact seat flip mechanism is achieved, reducing the total vehicle weight, reducing fuel or power consumption, improving energy efficiency, and reducing motor power and production costs.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of seats, and in particular relates to a passenger car seat flipping mechanism and a passenger car seat. Background Art
[0002] In recent years, with the popularity of cars and the increasing diversification of people's car usage scenarios, the requirements for car interior space have become higher and higher. Car manufacturers have launched rear seats that can be laid flat or stored. The existing seats are mostly flipped by the seat backs flipping backwards, and the seats cannot carry heavy objects, such as passengers, after the seat backs are flipped backwards and laid flat. In addition, the mechanism mostly uses a coil spring or a plane scroll spring assist plus a motor. If the seat cushion is to be flipped forward or backward 180 degrees, at least two assist springs are required to achieve two-way assist, which will cause the lateral space to be too large, encroaching on the passenger space and not conducive to the seat layout, and the weight is too large and the running noise is too loud. Summary of the invention
[0003] The utility model aims to provide a passenger car seat flipping mechanism and a passenger car seat which are light in weight, occupy a small space and have a compact structure.
[0004] The purpose of the utility model is to solve the problem as follows:
[0005] A passenger car seat flipping mechanism comprises a seat cushion bracket and a backrest bracket hinged at the rear end of the seat cushion bracket, both sides of the front lower part of the seat cushion bracket are respectively hinged to a vehicle body mounting bracket through a hinge shaft, and the seat flipping mechanism installed on the vehicle body mounting bracket drives the seat cushion bracket and the backrest bracket to rotate through a transmission mechanism.
[0006] Since the seat turning mechanism is arranged at the front lower part of the seat cushion bracket, the utility model has light weight, small occupied space and compact structure.
[0007] As a further optimization of the above technical solution, a backrest bracket angle adjustment mechanism is provided between the seat cushion bracket and the backrest bracket, and the backrest bracket rotates along the hinge axis of the seat cushion bracket and the backrest bracket. The backrest bracket angle adjustment mechanism or angle adjuster belongs to the existing technology and will not be described in detail here.
[0008] As a further optimization of the above technical solution, a torsion bar mounting bracket is fixed to the middle part of the seat cushion bracket, and a torsion bar extending to both sides is fixed to the torsion bar mounting bracket, the torsion bar on each side extends into the body mounting brackets on both sides and is bent to form a limiting portion, and the body mounting brackets on both sides of the limiting portion are provided with limiting columns for limiting the rotation angle of the limiting portion, and the rotation angle of the torsion bar and the seat cushion bracket is limited by limiting the rotation angle of the limiting portion.
[0009] As a further optimization of the above technical solution, there are two limit columns for limiting the rotation angle of the limit part, and the two limit columns limit the rotation angle of the limit part, namely the torsion bar and the cushion bracket, to be greater than 45 degrees.
[0010] As a further optimization of the above technical solution, the limited rotation angle is 90 to 180 degrees.
[0011] To further optimize the above technical solution, the seat flipping mechanism includes a drive motor and a transmission mechanism. The transmission mechanism is a gear transmission mechanism or / and a worm gear transmission mechanism linked to the motor shaft of the drive motor. The rotation of the drive motor drives the seat cushion bracket and the backrest bracket to rotate through the transmission mechanism.
[0012] As a further optimization of the above technical solution, the torsion bar mounting bracket or the torsion bar is provided with a torsion spring for applying force to the seat cushion bracket in a lifting direction.
[0013] As a further optimization of the above technical solution, one end of the torsion spring abuts against the torsion bar mounting bracket or the torsion bar, and the other end abuts against the vehicle body mounting bracket.
[0014] By setting the torsion bar, not only the rotation angle limiting mechanism of the seat cushion bracket can be conveniently set, but also the torsion spring can be installed to increase the driving torque of the power-assisted drive motor, reduce the motor power and save electric energy.
[0015] A passenger car seat with a seat flipping mechanism comprises the above-mentioned passenger car seat flipping mechanism.
[0016] As a further optimization of the above technical solution, an elastic seat cushion is installed on the upper surface of the seat cushion bracket, and an elastic back cushion is installed on the backrest bracket.
[0017] The working principle of the flipping mechanism of the utility model is as follows: according to the different models and seat frames of the seat and vehicle body, it can be installed and used with simple modifications: the vehicle body mounting bracket is installed on the vehicle body, and the flipping mechanism is installed between the seat cushion frame at the front end of the seat cushion frame and the vehicle body mounting bracket by bolts. When the seat flipping forward signal is input and the backrest is folded forward, the driving motor of the flipping mechanism can drive the entire seat to flip forward by more than 180 degrees with the help of the torsion bar, and the driving motor of the flipping mechanism is reversed to drive the seat to reset.
[0018] 1. Energy saving and emission reduction: The utility model has a simple structure and occupies a small volume. It is designed to reduce the weight of the vehicle and can significantly reduce the total weight of the vehicle, thereby reducing fuel consumption or electricity consumption and improving energy efficiency. For traditional fuel vehicles, this means lower fuel consumption; for electric vehicles, it means longer cruising range.
[0019] 2. Improve performance: Torsion springs can provide greater torque for auxiliary drive motors in a smaller volume, reduce lateral space, and reduce motor power and production costs.
[0020] 3. Environmental protection contribution: By reducing energy consumption and emissions, lightweight design has a positive effect on environmental protection, which is in line with the global trend of carbon emission reduction and environmental protection regulations.
[0021] 4. Improve riding comfort: The main components are set at the front lower part of the seat cushion, which increases the lateral space of the seat, reduces operating noise, and improves riding comfort.
[0022] 5. Cost-effectiveness: Reducing parts and applying torsion bars can effectively reduce material and manufacturing costs.
[0023] 6. Adaptation flexibility: Provide more design freedom and adapt to seats of more car models.
[0024] 7. The utility model can realize that the seat cushion and the backrest of the seat can be rotated forward or backward more than 180 degrees and laid flat, which is convenient for multi-purpose use of the space in the car.
[0025] In short, the lightweight flip mechanism of the utility model can not only improve the flexibility and comfort of the seat, but also has great advantages in lightweight and cost control. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a three-dimensional schematic diagram of the utility model.
[0027] Figure 2 yes Figure 1 Enlarged view of part A.
[0028] Figure 3 yes Figure 1 Enlarged view of part B.
[0029] Figure 4 It is a three-dimensional schematic diagram of the passenger car seat flipping mechanism of the utility model.
[0030] Figure 5 It is a front view of the passenger car seat flipping mechanism of the utility model.
[0031] Figure 6 It is a top view of the passenger car seat flipping mechanism of the utility model. DETAILED DESCRIPTION
[0032] The present invention will be further described below with reference to the accompanying drawings. Figure 1-Figure 6 :
[0033] A passenger car seat flipping mechanism comprises a seat cushion bracket 10, and a backrest bracket 13 hinged to the rear end of the seat cushion bracket 10 through a hinge shaft 11. Both sides of the front lower part of the seat cushion bracket 10 are respectively hinged to a vehicle body mounting bracket 30 through a hinge shaft 22. The seat flipping mechanism 20 installed on the vehicle body mounting bracket 30 drives the seat cushion bracket 10 and the backrest bracket 13 to rotate through a transmission mechanism.
[0034] As a further optimization of the above technical solution, a backrest bracket 13 angle adjustment mechanism 12 is provided between the seat cushion bracket 10 and the backrest bracket 13 for rotating the backrest bracket 13 along a hinge shaft 11 between the seat cushion bracket 10 and the backrest bracket 13 .
[0035] As a further optimization of the above technical solution, a torsion bar mounting bracket 26 is fixed to the middle part of the seat cushion bracket 10, and a torsion bar 25 extending to both sides is fixed to the torsion bar mounting bracket 26. The torsion bar 25 on each side extends into the vehicle body mounting bracket 30 on both sides and is bent to form a limiting portion 23. The vehicle body mounting bracket 30 on both sides of the limiting portion 23 is provided with a limiting column 24 for limiting the rotation angle of the limiting portion 23. The rotation angle of the torsion bar 25 and the seat cushion bracket 10 is limited by limiting the rotation angle of the limiting portion 23.
[0036] As a further optimization of the above technical solution, there are two limit posts 24 for limiting the rotation angle of the limit part 23, and the two limit posts 24 limit the rotation angle of the limit part 23, i.e., the torsion bar 25 and the cushion bracket 10, to be greater than 45 degrees.
[0037] As a further optimization of the above technical solution, the limited rotation angle is 90 to 180 degrees.
[0038] To further optimize the above technical solution, the seat flipping mechanism 20 includes a driving motor 21 and a transmission mechanism. The transmission mechanism is a gear transmission mechanism or / and a worm gear transmission mechanism linked to the motor shaft of the driving motor 21. The rotation of the driving motor 21 drives the seat cushion bracket 10 and the backrest bracket 13 to rotate through the transmission mechanism.
[0039] As a further optimization of the above technical solution, the torsion bar mounting bracket 26 or the torsion bar 25 is provided with a torsion spring for applying force to the seat cushion bracket 10 in the lifting direction.
[0040] As a further optimization of the above technical solution, one end of the torsion spring abuts against the torsion bar mounting bracket 26 or the torsion bar 25 , and the other end abuts against the vehicle body mounting bracket 30 .
[0041] A passenger vehicle seat with a seat flipping mechanism 20 includes the above-mentioned passenger vehicle seat flipping mechanism 20.
[0042] As a further optimization of the above technical solution, an elastic seat cushion is installed on the upper surface of the seat cushion bracket 10, and an elastic back cushion is installed on the backrest bracket 13.
[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions or technical features described in the aforementioned embodiments can still be simply replaced or modified with similar technologies, and these simple replacements or modifications do not deviate the essence of the corresponding technical solutions from the spirit and substance of the technical solutions of the embodiments of the present invention, and are still within the protection scope of the present invention.
Claims
1. A passenger car seat flipping mechanism, comprising a seat cushion bracket and a backrest bracket hinged to the rear end of the seat cushion bracket, characterized in that: Both sides of the front lower part of the seat cushion bracket are respectively hinged on the vehicle body mounting bracket through hinge shafts, and the seat flipping mechanism installed on the vehicle body mounting bracket drives the seat cushion bracket and the backrest bracket to rotate through a transmission mechanism.
2. A passenger car seat flipping mechanism according to claim 1, characterized in that: A backrest bracket angle adjustment mechanism is arranged between the seat cushion bracket and the backrest bracket, and the backrest bracket is used to rotate along the hinge axis of the seat cushion bracket and the backrest bracket.
3. A passenger car seat flipping mechanism according to claim 1, characterized in that: A torsion bar mounting bracket is fixed to the middle part of the seat cushion bracket, and a torsion bar extending to both sides is fixed to the torsion bar mounting bracket, the torsion bar on each side extends into the vehicle body mounting brackets on both sides and is bent to form a limiting portion, and the vehicle body mounting brackets on both sides of the limiting portion are provided with limiting columns for limiting the rotation angle of the limiting portion, and the rotation angle of the torsion bar and the seat cushion bracket is limited by limiting the rotation angle of the limiting portion.
4. A passenger car seat flipping mechanism according to claim 3, characterized in that: There are two limiting columns for limiting the rotation angle of the limiting part, and the limiting rotation angle of the two limiting columns to the limiting part, namely the torsion bar and the seat cushion bracket, is greater than 45 degrees.
5. A passenger car seat flipping mechanism according to claim 4, characterized in that: The limited rotation angle is 90 to 180 degrees.
6. A passenger car seat flipping mechanism according to claim 3, characterized in that: The seat flipping mechanism includes a driving motor and a transmission mechanism, wherein the transmission mechanism is a gear transmission mechanism or / and a worm gear transmission mechanism linked to the motor shaft of the driving motor, and the rotation of the driving motor drives the seat cushion bracket and the backrest bracket to rotate through the transmission mechanism.
7. A passenger car seat flipping mechanism according to claim 3, characterized in that: The torsion bar mounting bracket or the torsion bar is sleeved with a torsion spring for applying force to the seat cushion bracket in a lifting direction.
8. A passenger car seat flipping mechanism according to claim 7, characterized in that: One end of the torsion spring abuts against the torsion bar mounting bracket or the torsion bar, and the other end abuts against the vehicle body mounting bracket.
9. A passenger car seat with a seat flipping mechanism, characterized in that: A passenger vehicle seat flipping mechanism comprising the invention as claimed in any one of claims 1 to 8.
10. A passenger vehicle seat with a seat flipping mechanism according to claim 9, characterized in that: An elastic seat cushion is installed on the upper surface of the seat cushion bracket, and an elastic back cushion is installed on the backrest bracket.