Zero-gravity automobile seat
By using a screw motor driving mechanism in the zero-gravity seat, using the combination of screw and nut, the problem of large shaking gap or weak constraint strength in the prior art is solved, and higher control accuracy and safety are achieved.
Patent Information
- Application Number
- CN202421992370.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The driving mechanism of existing zero-gravity seats has the problem of large shaking clearance or weak constraint strength, which affects comfort and safety.
The screw motor drive mechanism is adopted, and nuts are installed on the screw rod of the screw motor and are hinged with the front bracket to achieve zero gravity adjustment and locking of the seat.
The shaking gap of the driving mechanism is reduced, making adjustment easier to control; the constraint strength is improved, and the seat frame assembly that is first subject to human pressure is enhanced, enhancing the safety and stability of the seat.
Smart Images
Figure CN222554774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile seats, in particular to a zero-gravity automobile seat. Background Art
[0002] With the continuous development of the automotive industry and the continuous improvement of the degree of intelligence, the comfort requirements of end customers and automobile OEMs for automobile seats are increasing. Under the promotion of new scenarios, zero-gravity seats are mentioned more and more. The goal of "zero-gravity" posture seat adjustment is to meet the support requirements of the three main parts of the occupants' feet, thighs and torso, so that the three major parts are fully and appropriately supported, disperse the pressure on the back and legs, and make the muscles of the whole body in a state of relaxation, so as to achieve the ultimate relaxation state of the occupants. Existing zero-gravity seats usually use a toothed plate drive mechanism (a method in which the motor drives the toothed plate to rotate) to achieve zero-gravity adjustment, but this toothed plate drive mechanism has a large shaking gap and is difficult to control; there are also screw-nut mechanisms to achieve zero-gravity adjustment, but when the existing screw-nut mechanism is locked, it generally constrains the front bracket and connecting rod of the seat, and cannot constrain the seat cushion frame, and the constraint strength is weak. Utility Model Content
[0003] In view of the problems existing in the above-mentioned prior art, the utility model aims to provide a zero-gravity car seat to solve the problems of large shaking gap or weak restraint strength of the existing zero-gravity drive mechanism.
[0004] In order to achieve the above-mentioned purpose, the utility model proposes a zero-gravity car seat, including a seat frame assembly and a base assembly, the rear ends of the seat frame assembly are respectively hinged to the base assembly through rear connecting rods, the rear connecting rods are fixed on the seat frame assembly, and also include a zero-gravity drive mechanism, two front connecting rods and two front brackets, the two front connecting rods and the two front brackets are arranged correspondingly on the left and right, one end of the front connecting rod is hinged to the base assembly, and the other end is hinged to the front bracket, the other end of the front bracket is hinged to the seat frame assembly, the zero-gravity drive mechanism includes a screw motor, the screw motor is fixed to the seat frame assembly through a motor bracket, the screw motor and the motor bracket are rotatably connected, a nut is threadedly sleeved on the screw of the screw motor, and the nut is hinged to one of the front brackets.
[0005] In the above scheme: the seat frame assembly includes two side panels, the front ends of the two side panels are rotatably connected with a front cross tube, the rear ends of the two side panels are fixedly connected with a rear cross tube, the front bracket is fixedly arranged on the front cross tube, and the rear connecting rod is fixedly arranged on the rear cross tube; that is, the front bracket is hinged with the two side panels through the front cross tube, and the rear connecting rod is fixedly connected with the two side panels through the rear cross tube.
[0006] In the above scheme: the side end of the front bracket hinged to the nut is triangular, the nut, front connecting rod and front cross tube are connected to the three corners of the front bracket one by one, and the connection points or hinge points are arranged at intervals to prevent interference between the components.
[0007] In the above scheme: the front cross tube is fixedly connected to the top corner of the front bracket, the nut is hinged to the front bottom corner of the front bracket, and the front connecting rod is hinged to the rear bottom corner of the front bracket, so as to facilitate the restraint of the front bracket and the side panels through the zero-gravity drive mechanism.
[0008] In the above scheme: the end of the screw of the screw motor is provided with an anti-slip structure, which plays the role of anti-slip and extreme position locking.
[0009] The beneficial effects of the utility model are:
[0010] 1. The screw-nut mechanism is used as the zero-gravity driving mechanism. Compared with the toothed plate driving mechanism, its shaking clearance is small and it is easier to control; 2. When the zero-gravity driving mechanism is in working state, the screw motor rotates, and the nut on its screw will move along the screw to drive the front bracket to rotate, thereby adjusting the angle between the front bracket and the seat frame assembly (side panel), and then realizing the zero-gravity adjustment of the seat; when the zero-gravity driving mechanism is in a locked state (not working), the zero-gravity driving mechanism constrains the front bracket and the seat frame assembly (side panel), that is, constrains the angle between the two, thereby limiting the movement of the multi-link mechanism composed of the front bracket, the seat frame assembly, the base assembly and the front connecting rod, and realizing the locking of the seat position; compared with the traditional method of constraining the front connecting rod and the front bracket through the driving mechanism, the constraint object of this structure has changed, and its constraint strength is higher, directly constraining the seat frame assembly that is first subjected to human body pressure, so that the linkage structure of the zero-gravity seat is not easy to fail and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram when the seat tilt angle is adjusted to the maximum.
[0012] Figure 2 yes Figure 1 Side view of.
[0013] Figure 3 This is a schematic diagram when the seat tilt is adjusted to the minimum.
[0014] Figure 4 yes Figure 3 Side view of.
[0015] Figure 5 It is an enlarged schematic diagram of the zero-gravity drive mechanism. DETAILED DESCRIPTION
[0016] like Figure 1As shown in FIG. 5 , a zero-gravity car seat is mainly composed of a seat frame assembly 1, a base assembly 2, a zero-gravity drive mechanism, two front connecting rods 4 and two front brackets 5.
[0017] Both sides of the rear end of the seat frame assembly 1 are respectively hinged to the base assembly 2 through rear connecting rods 3 , and the rear connecting rods 3 are fixed on the seat frame assembly 1 .
[0018] The two front connecting rods 4 and the two front brackets 5 are arranged correspondingly on the left and right. One end of the front connecting rod 4 is hinged to the base assembly 2, and the other end is hinged to the front bracket 5. The other end of the front bracket 5 is hinged to the seat frame assembly 1.
[0019] The zero-gravity drive mechanism includes a screw motor 6, which is fixed to the seat frame assembly 1 through a motor bracket 7. The screw motor 6 and the motor bracket 7 are rotatably connected. A nut 8 is threadedly sleeved on the screw of the screw motor 6, and the nut 8 is hinged to one of the front brackets 5.
[0020] Preferably, the seat frame assembly 1 includes two side panels 11, a front cross tube 12 is rotatably connected between the front ends of the two side panels 11, a rear cross tube 13 is fixedly connected between the rear ends of the two side panels 11, the front bracket 5 is fixedly arranged on the front cross tube 12, and the rear connecting rod 3 is fixedly arranged on the rear cross tube 13; that is, the front bracket 5 is hinged with the two side panels 11 through the front cross tube 12, and the rear connecting rod 3 is fixedly connected with the two side panels 11 through the rear cross tube 13.
[0021] Preferably, the side end of the front bracket 5 hinged to the nut 8 is triangular in shape, and the nut 8, the front connecting rod 4 and the front cross tube 12 are connected to the three corners of the front bracket 5 one by one, and the connection points or hinge points are arranged at intervals to prevent interference between the components.
[0022] Preferably, the front cross tube 12 is fixedly connected to the top corner of the front bracket 5, the nut 8 is hinged to the front bottom corner of the front bracket 5, and the front connecting rod 4 is hinged to the rear bottom corner of the front bracket 5, so as to facilitate the restraint of the front bracket 5 and the side panel 11 by the zero-gravity drive mechanism.
[0023] Preferably, the end of the screw of the screw motor 6 is provided with an anti-slip structure 61, which plays the role of anti-slip and extreme position locking.
Claims
1. A zero-gravity car seat, comprising a seat frame assembly (1) and a base assembly (2), wherein both sides of the rear end of the seat frame assembly (1) are respectively hinged to the base assembly (2) through rear connecting rods (3), and the rear connecting rods (3) are fixedly mounted on the seat frame assembly (1), characterized in that: The invention also comprises a zero-gravity driving mechanism, two front connecting rods (4) and two front brackets (5), wherein the two front connecting rods (4) and the two front brackets (5) are arranged correspondingly on the left and right sides, one end of the front connecting rod (4) is hinged on the base assembly (2), and the other end is hinged on the front bracket (5), and the other end of the front bracket (5) is hinged on the seat frame assembly (1), and the zero-gravity driving mechanism comprises a screw motor (6), wherein the screw motor (6) is fixed on the seat frame assembly (1) through a motor bracket (7), the screw motor (6) and the motor bracket (7) are rotatably connected, and a nut (8) is threadedly mounted on the screw of the screw motor (6), and the nut (8) is hinged to one of the front brackets (5).
2. The zero-gravity car seat according to claim 1, characterized in that: The seat frame assembly (1) comprises two side panels (11), a front transverse tube (12) is rotatably connected between the front ends of the two side panels (11), a rear transverse tube (13) is fixedly connected between the rear ends of the two side panels (11), the front bracket (5) is fixedly mounted on the front transverse tube (12), and the rear connecting rod (3) is fixedly mounted on the rear transverse tube (13).
3. The zero-gravity car seat according to claim 2, characterized in that: The side end of the front bracket (5) hinged to the nut (8) is triangular in shape, and the nut (8), the front connecting rod (4) and the front cross tube (12) are connected to the three corners of the front bracket (5) one by one.
4. The zero-gravity car seat according to claim 3, characterized in that: The front cross tube (12) is fixedly connected to the top corner of the front bracket (5), the nut (8) is hinged to the front bottom corner of the front bracket (5), and the front connecting rod (4) is hinged to the rear bottom corner of the front bracket (5).
5. The zero-gravity car seat according to claim 1, characterized in that: The end of the screw of the screw motor (6) is provided with an anti-slip structure (61).