Automobile seat framework with reinforced waist support

Abstract

The utility model belongs to the technical field of automobile seat frameworks, and particularly relates to an automobile seat framework with reinforced waist support. The automobile seat framework with the reinforced waist support comprises a pair of base rods, a pair of supporting rods and a pair of supporting rods, the two ends of the two waist supporting spring wires are bent to form connecting sections, so that the two waist supporting spring wires are connected to the lower portion of the base rod in an engaged mode through engaging pieces; the two waist supporting spring wires are arranged on the lower portion of the base rod in a spaced mode. The two ends of the connecting spring wire are wound on the base rod between the two waist supporting spring wires, then extend outwards and are wound in the fixing piece. According to the automobile seat framework with the reinforced waist support, the base rods are not prone to loosening relative to the seat framework, the waist support spring wires are not prone to loosening relative to the base rods, and a good and long-term waist support effect can be kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seat frames, and particularly relates to an automobile seat frame with enhanced lumbar support. Background Art

[0002] An automobile seat frame is a frame structure composed of base rods on both sides and spring wires in the middle, which is used to replace the whole backrest board in an automobile seat to provide more comfortable support.

[0003] A backrest frame for an automobile seat disclosed in the publication number CN220615573U is found to have poor lumbar support effect after use. Because the transition support spring wire group, which was originally designed to share part of the lumbar support pressure for the lumbar support spring wire, hardly gets the support for the lumbar due to the existence of the thickened lumbar support spring wire. That is, the thickened lumbar support spring wire will cross the adjacent transition support spring wire group and provide almost all the lumbar support alone. Since the lumbar support borne becomes larger, the traditional fixing method of bundling the lumbar support spring wire and the base rod with rubber rings is not strong enough, and the lumbar support spring wire is easily loosened, resulting in a poor lumbar support effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automobile seat frame with enhanced lumbar support to solve the technical problem that the spring wire providing lumbar support in the automobile seat frame is easily loosened due to large support pressure and insufficient strength of the fixing method with the base rod, resulting in a poor lumbar support effect.

[0005] To solve the above technical problem, the utility model provides an automobile seat frame with enhanced lumbar support, including: a pair of base rods; two lumbar support spring wires, both ends of which are bent to form connection segments and are bite-connected to the lower part of the base rod through bite connectors; the two lumbar support spring wires are arranged at intervals at the lower part of the base rod; a connecting spring wire, both ends of which are wound around the base rod between the two lumbar support spring wires and then extend outwards, and are both wound in fixing parts.

[0006] Further, the bite connector includes: a bite piece; an isosceles trapezoidal convex piece connected to the middle of one end of the bite piece; two right trapezoidal convex pieces respectively connected to one side of the other end of the bite piece, and the hypotenuses are opposite; the distance from the outer end of the isosceles trapezoidal convex piece to the outer end of the right trapezoidal convex piece is adapted to the diameter of the base rod and the diameter of the connection segment, the length of the isosceles trapezoidal convex piece is adapted to the length of the right trapezoidal convex piece, and the width of the isosceles trapezoidal convex piece is adapted to the distance between the two right trapezoidal convex pieces, so that when curling and wrapping the base rod and the connection segment, the isosceles trapezoidal convex piece is buckled in the gap between the two right trapezoidal convex pieces, and the isosceles trapezoidal convex piece and the two right trapezoidal convex pieces form a toothed bite.

[0007] Further, the fixing member includes: an L-shaped rod, on the outer wall of the short rod section of which there is a first spring wire clamping groove, in the middle of the outer wall of the long rod section there is a vertically penetrating wire hole, and at the front part of the inner wall of the long rod section there is a second spring wire clamping groove.

[0008] Further, there is a buckle on the inner wall of the long rod section.

[0009] Further, hooks are connected to the lower ends of the base rods.

[0010] Further, the vertical distance from the waist support spring wire near the lower end of the base rod to the lower end of the base rod is L1, and the vertical distance from the waist support spring wire far from the lower end of the base rod to the lower end of the base rod is L2; the ratio of L1 to L2 is 14-18:94-98.

[0011] Further, the ratio of L1 to L2 is 16:96.

[0012] The beneficial effects of the present utility model are as follows. The present utility model aims to solve the technical problems that the spring wire providing waist support in the automobile seat frame is prone to looseness due to large support pressure and insufficient strength of the fixing method with the base rod, resulting in poor waist support effect. In this automobile seat frame with enhanced waist support, two waist support spring wires are arranged at intervals up and down at the lower part of the base rod, thus sharing the support pressure first, and the pressure borne by each waist support spring wire is reduced. Moreover, both ends of each waist support spring wire are bent to form connecting sections, and the connecting sections can be bite-connected to the base rod through bite connectors, thereby improving the connection strength between the waist support spring wire and the base rod. Therefore, it is ensured that the waist support spring wire is not easy to loosen. On this basis, in the traditional base rod, it is directly hooked in the holes of the seat frame, and the hook part is very easy to deform, and once deformed, it will cause the base rod to loosen relative to the seat frame, which will also lead to poor waist support effect. In this automobile seat frame, by arranging the connecting spring wire, it can be wound in the fixing member, and the fixing strength of winding is greater compared to hooking, and the fixing member can be fixedly connected to the seat frame, thereby ensuring the firmness of the connection between this frame and the seat frame. Therefore, in this automobile seat frame with enhanced waist support, not only is the base rod not easy to loosen relative to the seat frame, but also the waist support spring wire is not easy to loosen relative to the base rod, and a good and long-lasting waist support effect can be maintained. Description of the Drawings

[0013] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific embodiments or the prior description. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1It is the front view of the vehicle seat frame with enhanced lumbar support of the present utility model;

[0015] Figure 2 It is the schematic structural diagram of the vehicle seat frame with enhanced lumbar support of the present utility model;

[0016] Figure 3 It is Figure 2 the enlarged view of part A in

[0017] Figure 4 It is Figure 2 the enlarged view of part B in

[0018] Figure 5 It is Figure 2 the enlarged view of part C in

[0019] In the figure:

[0020] Base rod 100, hook 110, lumbar support spring wire 200, connecting section 210, biting piece 300, biting piece 310, isosceles trapezoidal convex piece 320, right trapezoidal convex piece 330, connecting spring wire 400, fixing piece 500, L-shaped rod 510, short rod section 511, long rod section 512, first spring wire clamping groove 520, vertically penetrating wire hole 530, second spring wire clamping groove 540, buckle 550. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment

[0023] As Figure 1 shown, the present utility model provides a vehicle seat frame with enhanced lumbar support, including: a pair of base rods 100; two lumbar support spring wires 200, which are combined Figure 3 , and both ends of which are bent to form connecting sections 210 to be bite-connected to the lower part of the base rod 100 through the biting piece 300; back to Figure 1 , the two lumbar support spring wires 200 are arranged at intervals at the lower part of the base rod 100; a connecting spring wire 400, both ends of which are wound around the base rod 100 between the two lumbar support spring wires 200 and then extend outwards, and are both wound in the fixing piece 500.

[0024] In this automotive seat frame with enhanced lumbar support, two lumbar support spring wires 200 are arranged at intervals up and down at the lower part of the base rod 100, so as to share the support pressure in advance, reducing the pressure borne by each lumbar support spring wire 200. Moreover, both ends of each lumbar support spring wire 200 are bent to form connection segments 210, and the connection segments 210 can be bite-connected to the base rod 100 through bite connectors 300, thereby improving the connection strength between the lumbar support spring wires 200 and the base rod 100. Therefore, it is ensured that the lumbar support spring wires 200 are not easily loosened. On this basis, in the traditional base rod 100, it is directly hooked in the holes of the seat frame, and the hooked part is easily deformed. Once deformed, it will cause the base rod 100 to be loose relative to the seat frame, which will also lead to a poor lumbar support effect. In this automotive seat frame, by setting a connection spring wire 400, it can be wound around a fixing member 500. Compared with hooking, the fixing strength of winding is also greater, and the fixing member 500 can be fixedly connected to the seat frame, thereby ensuring the firmness of the connection between this frame and the seat frame. Therefore, in this automotive seat frame with enhanced lumbar support, not only is the base rod 100 not easily loose relative to the seat frame, but the lumbar support spring wires 200 are also not easily loose relative to the base rod 100, and a good and long-lasting lumbar support effect can be maintained.

[0025] As Figure 2 and Figure 3 shown, the bite connector 300 may include: a bite piece 310; an isosceles trapezoidal tab 320 connected to the middle of one end of the bite piece 310; two right trapezoidal tabs 330 respectively connected to one side of the other end of the bite piece 310, and the hypotenuses are opposite; the distance from the outer end of the isosceles trapezoidal tab 320 to the outer end of the right trapezoidal tab 330 is adapted to the diameter of the base rod 100 and the diameter of the connection segment 210, so that after re-curling, it can wrap the base rod 100 and the connection segment 210. The length of the isosceles trapezoidal tab 320 is adapted to the length of the right trapezoidal tab 330, and the width of the isosceles trapezoidal tab 320 is adapted to the distance between the two right trapezoidal tabs 330. When curling and wrapping the base rod 100 and the connection segment 210, the isosceles trapezoidal tab 320 is buckled in the gap between the two right trapezoidal tabs 330, and the isosceles trapezoidal tab 320 and the two right trapezoidal tabs 330 form a toothed bite, so as to ensure that both the isosceles trapezoidal tab 320 and the right trapezoidal tab 330 can be curled more tightly and wrap the base rod 100 and the connection segment 210 tightly.

[0026] As Figure 4 and Figure 5As shown, the fixing member 500 may include: an L-shaped rod 510, on the outer wall of the short rod section 511 of which there is a first spring wire clamping groove 520, in the middle of the outer wall of the long rod section 512 of which there is a vertically penetrating wire hole 530, and at the front part of the inner wall of the long rod section 512 there is a second spring wire clamping groove 540. Usually with the above settings, the connecting spring wire 400 can form three folding angles at the corner of the short rod section 511 and the long rod section 512, the penetration point of the vertically penetrating wire hole 530, and the exit point of the vertically penetrating wire hole 530, and is respectively clamped by the first spring wire clamping groove 520 and the second spring wire clamping groove 540, and has a greater fixing strength compared to hooking.

[0027] In at least one embodiment, as Figure 4 shown, on the inner wall of the long rod section 512 there may be a buckle 550 for fixedly connecting to the seat frame.

[0028] As Figure 1 shown, at the lower ends of the base rods 100 there are connecting hooks 110 respectively, which can be used to hook into corresponding holes when installing the skeleton into the seat frame, and can not only position but also improve the connection strength between some skeletons and the seat frame.

[0029] As Figure 1 shown, in at least one embodiment, the automotive seat skeleton also optimizes the sharing of the supporting pressure by two lumbar support spring wires 200. The vertical distance from the lumbar support spring wire 200 near the lower end of the base rod 100 to the lower end of the base rod 100 is L1, and the vertical distance from the lumbar support spring wire 200 far from the lower end of the base rod 100 to the lower end of the base rod 100 is L2; the ratio of L1 to L2 is 14 - 18:94 - 98.

[0030] Preferably, the ratio of L1 to L2 is 16:96. When the two lumbar support spring wires 200 are arranged on the base rod 100 in this way, after the base rod 100 is hooked into the corresponding hole of the seat frame through the connecting hook 110, they are in a suitable position to support the passenger's waist, thereby sharing the supporting pressure.

[0031] In summary, in the automotive seat frame with enhanced lumbar support, two lumbar support spring wires 200 are arranged at intervals up and down at the lower part of the base rod 100, so as to share the support pressure in advance, and the pressure borne by each lumbar support spring wire 200 is reduced. Moreover, both ends of each lumbar support spring wire 200 are bent to form connecting sections 210, and the connecting sections 210 can be bite-connected to the base rod 100 through bite connectors 300, thereby improving the connection strength between the lumbar support spring wires 200 and the base rod 100. Therefore, it is ensured that the lumbar support spring wires 200 are not easily loosened. On this basis, in the traditional base rod 100, it is directly hooked in the holes of the seat frame, and the hook part is easily deformed. Once deformed, it will cause the base rod 100 to be loose relative to the seat frame, which will also lead to a poor lumbar support effect. In this automotive seat frame, by setting the connecting spring wire 400, it can be wound in the fixing part 500. Compared with hooking, the fixing strength of winding is also greater, and the fixing part 500 can be fixedly connected to the seat frame, thereby ensuring the firmness of the connection between this frame and the seat frame. Therefore, in this automotive seat frame with enhanced lumbar support, not only is the base rod 100 not easily loose relative to the seat frame, but the lumbar support spring wires 200 are also not easily loose relative to the base rod 100, and a good and long-lasting lumbar support effect can be maintained.

[0032] In the embodiments provided in this application, it should be understood that the disclosed systems and devices can be implemented in other ways. The embodiments described above are only illustrative. For example, the division of the mechanisms is only a logical function division, and there can be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] Taking the above-mentioned ideal embodiments of the present utility model as an inspiration, through the above description, those skilled in the relevant art can make various changes and modifications completely within the scope of not deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automotive seat frame with enhanced lumbar support, characterized in that, Comprising: A pair of base rods (100); Two lumbar support spring wires (200), both ends of which are bent to form connection segments (210) to be bite-connected to the lower part of the base rod (100) through a bite connector (300); The two lumbar support spring wires (200) are arranged at intervals at the lower part of the base rod (100); A connection spring wire (400), both ends of which are wound around the base rod (100) between the two lumbar support spring wires (200) and then extend outwards, and are both wound in a fixing member (500).

2. The automotive seat frame with enhanced lumbar support according to claim 1, characterized in that The bite connector (300) comprises: A bite piece (310); An isosceles trapezoidal tab (320) connected to the middle of one end of the bite piece (310); Two right trapezoidal tabs (330) respectively connected to one side of the other end of the bite piece (310), and the hypotenuses are opposite; The distance from the outer end of the isosceles trapezoidal tab (320) to the outer end of the right trapezoidal tab (330) is adapted to the diameter of the base rod (100) and the diameter of the connection segment (210), the length of the isosceles trapezoidal tab (320) is adapted to the length of the right trapezoidal tab (330), and the width of the isosceles trapezoidal tab (320) is adapted to the distance between the two right trapezoidal tabs (330), so that when curling and wrapping the base rod (100) and the connection segment (210), the isosceles trapezoidal tab (320) is buckled in the gap between the two right trapezoidal tabs (330), and the isosceles trapezoidal tab (320) and the two right trapezoidal tabs (330) form a toothed bite connection.

3. The automotive seat frame with enhanced lumbar support according to claim 2, characterized in that The fixing member (500) comprises: An L-shaped rod (510), on the outer wall of the short rod section (511) of which there is a first spring wire clamping groove (520), in the middle of the outer wall of the long rod section (512) there is a vertically penetrating wire hole (530), and in the front part of the inner wall of the long rod section (512) there is a second spring wire clamping groove (540).

4. The automotive seat frame with enhanced lumbar support according to claim 3, characterized in that A buckle (550) is provided on the inner wall of the long rod section (512).

5. The automotive seat frame with enhanced lumbar support according to claim 4, characterized in that Hooks (110) are connected to the lower ends of the base rods (100).

6. The automotive seat frame with enhanced lumbar support according to claim 5, characterized in that The vertical distance from the lumbar support spring wire (200) near the lower end of the base rod (100) to the lower end of the base rod (100) is L1, and the vertical distance from the lumbar support spring wire (200) far from the lower end of the base rod (100) to the lower end of the base rod (100) is L2; The ratio of L1 to L2 is 14 - 18:94 - 98.

7. The automotive seat frame with enhanced lumbar support according to claim 6, characterized in that The ratio of L1 to L2 is 16:96.

Images