Mechanical motorized adjustable lumbar support system

Abstract

The utility model relates to the technical field of automobile seat, disclose a kind of mechanical type electric waist adjustable support system, including steel wire support frame, steel wire support frame includes four longitudinal steel wires sequentially spaced arrangement, and it is connected with several horizontal steel wires between adjacent two longitudinal steel wires, to form three support surfaces, respectively set up driver assembly on the support surface of both sides, two driver assemblies are used to adjust the bending degree and frequency of corresponding support surface respectively, realize two waist support amount adjustable. The above-mentioned mechanical type electric waist adjustable support system simple structure, easy to install, lower in cost, can realize waist left and right support amount synchronization, asynchronous, periodicity regulation, to be more in line with human back profile, for better ride experience of driver and passenger.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a mechanical electric adjustable lumbar support system. Background Technology

[0002] Currently, most car seats have adjustable lumbar support to improve driving and riding comfort. However, the vast majority of existing mechanical lumbar supports are flat support structures, which can only adjust one support surface, resulting in a small support range and insufficient comfort. While pneumatic lumbar supports can provide multi-directional support, they have weaker support rigidity, a higher failure rate due to air leakage, and are more expensive. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide a mechanical electric adjustable lumbar support system to improve the support area and support effect, and meet the needs of users.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mechanical electric adjustable lumbar support system includes a steel wire support frame, which includes four longitudinal steel wires arranged at intervals in sequence, and several transverse steel wires connecting two adjacent longitudinal steel wires to form three support surfaces. A drive assembly is respectively provided on the support surfaces on both sides. The two drive assemblies are used to adjust the bending degree and frequency of the corresponding support surfaces respectively, so as to realize the adjustable lumbar support at the two points.

[0006] As an alternative, the support surfaces on both sides are arranged symmetrically, and the planes containing the two middle longitudinal steel wires are parallel to the planes containing the two side longitudinal steel wires.

[0007] As an alternative, the distance between the middle longitudinal wire and the longitudinal wire on the same side is greater than the distance between the two middle longitudinal wires.

[0008] As an alternative, the transverse steel wires of two adjacent longitudinal steel wires are connected by a plastic hollow flexible tube.

[0009] As an alternative, the longitudinal steel wire is covered with a plastic layer, and the two ends of the transverse steel wire are bent and knotted around the longitudinal steel wire.

[0010] As an optional solution, the drive assembly includes a slider bracket, an adjusting cable, and a drive motor. The slider bracket is mounted on a longitudinal steel wire on the side. The first end of the slider bracket is provided with a first buckle that is fixed to the longitudinal steel wire in the middle on the same side. A screw is provided inside the slider bracket, and a slider nut is provided on the screw. One end of the adjusting cable is connected to the slider nut, and the other end of the adjusting cable is hooked to the seat frame. A second buckle is provided on the adjusting cable that is fixed to the longitudinal steel wire on the side. The screw is driven to rotate by the drive motor through a transmission assembly.

[0011] As an alternative, a motor bracket is provided at the second end of the slider bracket, the drive motor is mounted on the motor bracket, and the output shaft of the drive motor is arranged perpendicularly to the screw. The transmission component includes a worm gear and a worm. The worm gear is coaxially connected to the screw, and the worm is coaxially connected to the output shaft of the drive motor. The worm gear and the worm mesh.

[0012] As an alternative, a cover is provided between the motor bracket and the slider bracket, and a sealed space is formed between the cover and the motor bracket for mounting the worm gear.

[0013] As an optional solution, the screw is equipped with a buffer block and a limit block for adjusting the travel of the slider nut.

[0014] The beneficial effects of this utility model are:

[0015] This mechanical electric adjustable lumbar support system has a simple structure, is easy to install, and has a low cost. It can achieve synchronous, asynchronous, and periodic adjustment of the left and right lumbar support, thus better conforming to the contours of the human back and providing a better riding experience for drivers and passengers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mechanical electric adjustable waist support system provided in this embodiment of the utility model;

[0017] Figure 2 This is a top view of the mechanical electric adjustable waist support system provided in this embodiment of the utility model;

[0018] Figure 3 This is a partial structural diagram of the drive assembly in the mechanical electric adjustable waist support system provided in this embodiment of the utility model;

[0019] Figure 4 yes Figure 3 Exploded view.

[0020] In the attached image:

[0021] 100. Steel wire support frame; 101. Longitudinal steel wire; 102. Transverse steel wire; 103. Plastic hollow flexible tube; 104. Support surface;

[0022] 200. Driver assembly; 201. Slider bracket; 202. Adjusting cable; 203. Drive motor; 204. First buckle; 205. Screw; 206. Slider nut; 207. Second buckle; 208. Motor bracket; 209. Worm gear; 210. Worm; 211. Cover; 212. Buffer block; 213. Limit block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0028] Please see Figures 1 to 4As shown, this embodiment provides a mechanical electric adjustable lumbar support system, including a steel wire support frame 100. The steel wire support frame 100 includes four longitudinal steel wires 101 arranged at intervals, and several transverse steel wires 102 are connected between two adjacent longitudinal steel wires 101 to form three support surfaces 104. A driver assembly 200 is respectively provided on the support surfaces 104 on both sides. The two driver assemblies 200 are used to adjust the bending degree and frequency of the corresponding support surfaces 104 respectively, so as to realize the adjustable lumbar support at two points.

[0029] This allows for synchronous, asynchronous, and periodic adjustment of the left and right lumbar support, thus better conforming to the contours of the human back and providing a better riding experience for drivers and passengers.

[0030] In at least one embodiment, the support surfaces 104 on both sides are symmetrically arranged, and the plane containing the two middle longitudinal steel wires 101 is parallel to the plane containing the two side longitudinal steel wires 101; further, the distance between the middle longitudinal steel wire 101 and the longitudinal steel wire 101 on the same side is greater than the distance between the two middle longitudinal steel wires 101.

[0031] This creates a semi-enclosed shape with trapezoidal edges, providing support for both sides of the human waist and back.

[0032] In some embodiments, the transverse steel wires 102 of two adjacent longitudinal steel wires 101 are connected by a plastic hollow hose 103 to improve the structural strength of each support surface 104.

[0033] In some embodiments, the longitudinal steel wire 101 is covered with a plastic layer, and the two ends of the transverse steel wire 102 are bent and knotted around the longitudinal steel wire 101 to ensure the sturdiness of the steel wire support frame 100.

[0034] In at least one embodiment, the drive assembly 200 includes a slider bracket 201, an adjusting cable 202, and a drive motor 203. The slider bracket 201 is mounted on a longitudinal steel wire 101 on the side. The first end of the slider bracket 201 is provided with a first buckle 204 that is fixed to the longitudinal steel wire 101 in the middle on the same side. A screw 205 is provided inside the slider bracket 201. A slider nut 206 is provided on the screw 205. One end of the adjusting cable 202 is connected to the slider nut 206. The other end of the adjusting cable 202 is hooked on the seat frame. A second buckle 207 that is fixed to the longitudinal steel wire 101 on the side is provided on the adjusting cable 202. The screw 205 is driven to rotate by the drive motor 203 through a transmission assembly.

[0035] Therefore, by driving the slider nut 206 to move through the drive motor 203, the total length of the adjusting cable 202 is changed, causing the corresponding area of ​​the wire support frame 100 to deform, thereby realizing the function of adjusting the support amount.

[0036] In some embodiments, a motor bracket 208 is provided at the second end of the slider bracket 201, a drive motor 203 is mounted on the motor bracket 208, and the output shaft of the drive motor 203 is arranged perpendicularly to the screw 205. The transmission assembly includes a worm gear 209 and a worm 210. The worm gear 209 is coaxially connected to the screw 205, and the worm 210 is coaxially connected to the output shaft of the drive motor 203. The worm gear 209 meshes with the worm 210.

[0037] In some embodiments, a cover 211 is provided between the motor bracket 208 and the slider bracket 201, and a sealed space for arranging the worm gear 209 is formed between the cover 211 and the motor bracket 208.

[0038] In some embodiments, the screw 205 is provided with a buffer block 212 and a limiting block 213 for adjusting the travel of the slider nut 206. Since the length of the screw 205 can be customized, theoretically the travel of the drive assembly 200 is unlimited. At the same time, due to the presence of the buffer block 212 and the limiting block 213, the travel of the drive assembly 200 is adjustable, making it more flexible and versatile than existing drives.

[0039] When a single drive assembly 200 is activated, the drive motor 203 is energized, causing the worm gear 210 to rotate. The worm wheel 209 rotates with the worm gear 210, which in turn drives the screw 205 to rotate. The slider nut 206 is threadedly engaged with the screw 205, causing the slider nut 206 to move along the screw 205 within the slider bracket 201. When the slider nut 206 moves closer to or further away from the central support surface 104, the relative distance between the wire support frame 100 and the seat frame is shortened or lengthened under the pull of the adjusting cable 202, causing the wire support frame 100 to deform. When the left and right drive assemblies 200 are activated respectively, two curved arcs are formed in the left and right lumbar regions, providing two adjustable lumbar support areas and realizing the left and right lateral lumbar support adjustment function.

[0040] In addition, when the two drive assemblies 200 work simultaneously, intermittently, or periodically according to the set program, they can also provide a massage effect and improve riding comfort.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mechanical-electric adjustable lumbar support system, characterized in that, The system includes a wire support frame (100), which includes four longitudinal wires (101) arranged at intervals in sequence, and several transverse wires (102) connecting two adjacent longitudinal wires (101) to form three support surfaces (104). A drive assembly (200) is provided on the support surfaces (104) on both sides respectively. The two drive assemblies (200) are used to adjust the bending degree and frequency of the corresponding support surfaces (104) respectively, so as to realize the adjustable waist support at two points.

2. The mechanical-electric adjustable lumbar support system according to claim 1, characterized in that, The support surfaces (104) on both sides are arranged symmetrically, and the planes where the two longitudinal steel wires (101) in the middle are located are parallel to the planes where the two longitudinal steel wires (101) on the sides are located.

3. The mechanical-electric adjustable lumbar support system according to claim 2, characterized in that, The distance between the middle longitudinal wire (101) and the longitudinal wire (101) on the same side is greater than the distance between the two middle longitudinal wires (101).

4. The mechanical-electric adjustable lumbar support system according to claim 1, characterized in that, The transverse steel wires (102) of two adjacent longitudinal steel wires (101) are connected by plastic hollow hoses (103).

5. The mechanical-electric adjustable lumbar support system according to claim 1, characterized in that, The longitudinal steel wire (101) is covered with a plastic layer, and the two ends of the transverse steel wire (102) are bent and knotted and wrapped around the longitudinal steel wire (101).

6. The mechanical-electric adjustable lumbar support system according to claim 1, characterized in that, The drive assembly (200) includes a slider bracket (201), an adjusting cable (202), and a drive motor (203). The slider bracket (201) is mounted on one of the longitudinal steel wires (101) on the side. The first end of the slider bracket (201) is provided with a first buckle (204) that is fixed to the longitudinal steel wire (101) in the middle on the same side. A screw (205) is provided inside the slider bracket (201). A slider nut (206) is provided on the screw (205). One end of the adjusting cable (202) is connected to the slider nut (206), and the other end of the adjusting cable (202) is hooked on the seat frame. A second buckle (207) that is fixed to the longitudinal steel wire (101) on the side is provided on the adjusting cable (202). The screw (205) is driven to rotate by the drive motor (203) through a transmission assembly.

7. The mechanical-electric adjustable lumbar support system according to claim 6, characterized in that, The second end of the slider bracket (201) is provided with a motor bracket (208). The drive motor (203) is mounted on the motor bracket (208), and the output shaft of the drive motor (203) is arranged perpendicularly to the screw (205). The transmission assembly includes a worm gear (209) and a worm (210). The worm gear (209) is coaxially connected to the screw (205), and the worm (210) is coaxially connected to the output shaft of the drive motor (203). The worm gear (209) meshes with the worm (210).

8. The mechanical-electric adjustable lumbar support system according to claim 7, characterized in that, A cover (211) is provided between the motor bracket (208) and the slider bracket (201), and a sealed space for arranging the worm gear (209) is formed between the cover (211) and the motor bracket (208).

9. The mechanical-electric adjustable lumbar support system according to claim 6, characterized in that, The screw (205) is provided with a buffer block (212) and a limit block (213) for adjusting the travel of the slider nut (206).

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