Injection molding type automobile seat framework

Abstract

The utility model belongs to the technical field of automobile seat frameworks, and particularly relates to an injection molding type automobile seat framework. The injection molding type automobile seat framework comprises a pair of side rods, and an upper spring wire, a middle spring wire and a lower spring wire are connected between the side rods from top to bottom; the upper plastic strip is provided with at least three upper plastic strip perforated convex parts so as to wrap the middle part and the two sides of the middle part of the upper spring wire; the middle plastic strip is provided with at least three middle plastic strip perforated convex parts so as to wrap the middle part and the two sides of the middle part of the middle spring wire; and the lower plastic strip is provided with at least three lower plastic strip perforated convex parts so as to wrap the middle part and the two sides of the middle part of the lower spring wire. According to the injection molding type automobile seat framework, when the upper spring wire, the middle spring wire and the lower spring wire support passengers and deform, a small section of spring wire wrapped by the upper plastic strip hole convex part, the middle plastic strip hole convex part and the lower plastic strip hole convex part can integrally collapse, the situation that force is concentrated at one point of the spring wire is avoided, and therefore the service life of the spring wire is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seat frames, and in particular relates to an injection-molded automobile seat frame. Background Art

[0002] At present, the framework of automobile seats basically realizes elastic support for the passenger's back by arranging spring wires with a certain elasticity on the frame. If only spring wires are used for support, some spring wires will bear more pressure and some spring wires will bear less pressure. For this reason, a central connecting tube is arranged as in the disclosure (announcement) No. CN221437815U to string together the spring wires so as to share the supporting pressure.

[0003] However, compared with the situation before the connecting tube is set in the middle, the pressure is achieved by bending the middle section of each spring wire as a whole. After the connecting tube is set in the middle, when the spring wire is compressed again, the force will be concentrated at the midpoint of the spring wire. In this way, when the car seat is leaned on and used, the midpoint of the spring wire will bend repeatedly, which makes it easy for metal fatigue to occur at the midpoint of the spring wire, resulting in poor support effect of the frame. Utility Model Content

[0004] The utility model aims to provide an injection-molded automobile seat frame to solve the technical problem that after the spring wires of the existing automobile seat frame are strung together to share the supporting pressure, the force is concentrated at the midpoint of the spring wire, which is prone to metal fatigue.

[0005] In order to solve the above technical problems, the utility model provides an injection-molded automobile seat frame, comprising: a pair of side rods, with an upper spring wire, a middle spring wire, and a lower spring wire connected between the side rods from top to bottom; an upper plastic strip, on which at least three upper plastic strip convex portions with holes are provided to wrap the middle part and both sides of the middle part of the upper spring wire; a middle plastic strip, on which at least three middle plastic strip convex portions with holes are provided to wrap the middle part and both sides of the middle part of the middle spring wire; a lower plastic strip, on which at least three lower plastic strip convex portions with holes are provided to wrap the middle part and both sides of the middle part of the lower spring wire.

[0006] Furthermore, two sides of the upper plastic strip are respectively connected to the side rods; two sides of the middle plastic strip are respectively connected to the side rods; and two sides of the lower plastic strip are respectively connected to the side rods.

[0007] Furthermore, the convex parts with holes in the upper plastic strip are connected to the corresponding convex parts with holes in the middle plastic strip through the upper sharing plastic strip; the convex parts with holes in the middle plastic strip are connected to the corresponding convex parts with holes in the lower plastic strip through the lower sharing plastic strip.

[0008] Furthermore, the lower sharing plastic strips are all provided with lower sharing plastic strip convex portions with holes, and are penetrated with transition spring wires.

[0009] Further, a number of staggered four-way joints are provided on the side rod to connect the corresponding upper spring wire, middle spring wire, and lower spring wire.

[0010] Further, the staggered four-way joint includes: a main penetration pipe whose pipe diameter is adapted to the side rod; a secondary penetration pipe provided on the outer wall of the main penetration pipe to wrap the penetrated upper spring wire, middle spring wire, and lower spring wire.

[0011] Further, the middle part of the upper spring wire bends upward to form an upper spring wire middle bending part, and both sides of the middle part of the upper spring wire bend downward to form upper spring wire side bending parts; the middle part of the middle spring wire bends upward to form a middle spring wire middle bending part, and both sides of the middle part of the middle spring wire bend downward to form middle spring wire side bending parts; the middle part of the lower spring wire bends upward to form a lower spring wire middle bending part, and both sides of the middle part of the lower spring wire bend downward to form lower spring wire side bending parts.

[0012] The beneficial effect of the present utility model is that the present utility model aims to solve the technical problem that after the spring wires of the existing automobile seat frame are strung together to share the support pressure jointly, the force will be concentrated at the midpoint of the spring wire, and metal fatigue is likely to occur. After the upper spring wire, middle spring wire, and lower spring wire are arranged on the side rod of this injection-molded automobile seat frame, upper plastic strips, middle plastic strips, and lower plastic strips are also arranged. At least three upper plastic strip perforated convex parts are provided on the upper plastic strip, which can wrap the middle part and both sides of the middle part of the upper spring wire. At least three middle plastic strip perforated convex parts are provided on the middle plastic strip, which can wrap the middle part and both sides of the middle part of the middle spring wire. At least three lower plastic strip perforated convex parts are provided on the lower plastic strip, which can wrap the middle part and both sides of the middle part of the lower spring wire. When the upper spring wire, middle spring wire, and lower spring wire are deformed due to supporting passengers, a small section of the spring wire wrapped by the upper plastic strip perforated convex parts, middle plastic strip perforated convex parts, and lower plastic strip perforated convex parts will collapse as a whole, and the situation of force concentration at one point of the spring wire will no longer occur, thereby prolonging the service life of the spring wire. 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 to be used in the specific embodiments or the prior description. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is the front side view of the injection-molded automobile seat frame of the present utility model;

[0015] Figure 2 is the rear side view of the injection-molded automobile seat frame of the present utility model;

[0016] Figure 3 is Figure 1 an enlarged view of part A in

[0017] In the figure:

[0018] side lever 100,

[0019] upper spring wire 200, middle bending part 210 of the upper spring wire, side bending part 220 of the upper spring wire,

[0020] middle spring wire 300, middle bending part 310 of the middle spring wire, side bending part 320 of the middle spring wire,

[0021] lower spring wire 400, middle bending part 410 of the lower spring wire, side bending part 420 of the lower spring wire,

[0022] upper plastic strip 500, hole - provided convex part 510 on the upper plastic strip,

[0023] middle plastic strip 600, hole - provided convex part 610 on the middle plastic strip,

[0024] lower plastic strip 700, hole - provided convex part 710 on the lower plastic strip,

[0025] upper sharing plastic strip 810, lower sharing plastic strip 820, hole - provided convex part 821 on the lower sharing plastic strip, transition spring wire 830,

[0026] interleaved four - way joint 900, main penetrating pipe 910, secondary penetrating pipe 920. Detailed implementation mode

[0027] 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. Obviously, 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 belong to the protection scope of the present utility model.

[0028] Embodiment

[0029] As Figure 1 shown, the present utility model provides an injection - molded automobile seat frame, including: a pair of side levers 100, with an upper spring wire 200, a middle spring wire 300, and a lower spring wire 400 connected from top to bottom between the side levers 100; an upper plastic strip 500, which is provided with at least three hole - provided convex parts 510 on it to wrap the middle part and both sides of the middle part of the upper spring wire 200; a middle plastic strip 600, which is provided with at least three hole - provided convex parts 610 on it to wrap the middle part and both sides of the middle part of the middle spring wire 300; a lower plastic strip 700, which is provided with at least three hole - provided convex parts 710 on it to wrap the middle part and both sides of the middle part of the lower spring wire 400.

[0030] In at least one embodiment, the upper plastic strip 500 and the upper plastic strip with hole protrusion 510, the middle plastic strip 600 and the middle plastic strip with hole protrusion 610, and the lower plastic strip 700 and the lower plastic strip with hole protrusion 710 can be obtained by injection molding.

[0031] After the upper spring wire 200, the middle spring wire 300 and the lower spring wire 400 are arranged on the side rod 100, the upper plastic strip 500, the middle plastic strip 600 and the lower plastic strip 700 are also arranged. The upper plastic strip 500 is provided with at least three upper plastic strip hole convex parts 510, which can wrap the middle part and both sides of the middle part of the upper spring wire 200, and the middle plastic strip 600 is provided with at least three middle plastic strip hole convex parts 610, which can wrap the middle part and both sides of the middle part of the middle spring wire 300. On both sides of the middle part, at least three lower plastic strip with hole convex parts 710 are provided on the lower plastic strip 700, which can wrap the middle part and both sides of the middle part of the lower spring wire 400. When the upper spring wire 200, the middle spring wire 300 and the lower spring wire 400 are deformed by supporting the passengers, a small section of the spring wire wrapped by the upper plastic strip with hole convex part 510, the middle plastic strip with hole convex part 610 and the lower plastic strip with hole convex part 710 will collapse as a whole, and the force will no longer be concentrated on one point of the spring wire, thereby extending the life of the spring wire.

[0032] like Figure 1 As shown, both sides of the upper plastic strip 500 are respectively connected to the side rod 100; both sides of the middle plastic strip 600 are respectively connected to the side rod 100; both sides of the lower plastic strip 700 are respectively connected to the side rod 100; thereby, the upper plastic strip 500, the middle plastic strip 600, and the lower plastic strip 700 can also share part of the pressure, further extending the life of the spring wire.

[0033] like Figure 1 As shown, the upper plastic strip with hole protrusions 510 are connected to the corresponding middle plastic strip with hole protrusions 610 through the upper sharing plastic strip 810; the middle plastic strip with hole protrusions 610 are connected to the corresponding lower plastic strip with hole protrusions 710 through the lower sharing plastic strip 820; thereby, the upper plastic strip 500, the middle plastic strip 600 and the lower plastic strip 700 are connected into a mesh-like overall structure. Compared with the separated upper plastic strip 500, the middle plastic strip 600 and the lower plastic strip 700 which respectively provide independent support for the upper, middle and lower parts of the back, after being connected into a mesh-like overall structure, it can provide support for all parts of the back and strengthen the support strength of the skeleton.

[0034] like Figure 2 As shown, the lower sharing plastic strip 820 is provided with a lower sharing plastic strip with hole convex portion 821, and is penetrated with a transition spring wire 830. The provision of the transition spring wire 830 can strengthen the support for the passenger's waist. The lower sharing plastic strip with hole convex portion 821 can also be obtained by injection molding.

[0035] like Figure 1As shown, a number of staggered four-way joints 900 are provided on the side rod 100 to connect the corresponding upper spring wires 200, middle spring wires 300, and lower spring wires 400.

[0036] As Figure 3 shown, the staggered four-way joint 900 may include: a main penetration tube 910 whose pipe diameter is adapted to the side rod 100; a secondary penetration tube 920 provided on the outer wall of the main penetration tube 910 to wrap the penetrated upper spring wire 200, middle spring wire 300, and lower spring wire 400. Among them, the pipe diameter of the secondary penetration tube 920 is adapted to the penetrated upper spring wire 200, middle spring wire 300, and lower spring wire 400.

[0037] As Figure 1 shown, the middle part of the upper spring wire 200 bends upward to form an upper spring wire middle bending part 210, and both sides of the middle part of the upper spring wire 200 bend downward to form upper spring wire side bending parts 220; the middle part of the middle spring wire 300 bends upward to form a middle spring wire middle bending part 310, and both sides of the middle part of the middle spring wire 300 bend downward to form middle spring wire side bending parts 320; the middle part of the lower spring wire 400 bends upward to form a lower spring wire middle bending part 410, and both sides of the middle part of the lower spring wire 400 bend downward to form lower spring wire side bending parts 420; by forming the upper spring wire middle bending part 210, upper spring wire side bending parts 220, middle spring wire middle bending part 310, middle spring wire side bending parts 320, lower spring wire middle bending part 410, and lower spring wire side bending parts 420, the support areas of the upper spring wire 200, middle spring wire 300, and lower spring wire 400 can be enlarged.

[0038] In summary, after the upper spring wire 200, middle spring wire 300, and lower spring wire 400 are provided on the side rod 100 of the injection-molded vehicle seat frame, upper plastic strips 500, middle plastic strips 600, and lower plastic strips 700 are further provided, and at least three upper plastic strip perforated convex parts 510 are provided on the upper plastic strip 500, which can wrap the middle part and both sides of the middle part of the upper spring wire 200. At least three middle plastic strip perforated convex parts 610 are provided on the middle plastic strip 600, which can wrap the middle part and both sides of the middle part of the middle spring wire 300. At least three lower plastic strip perforated convex parts 710 are provided on the lower plastic strip 700, which can wrap the middle part and both sides of the middle part of the lower spring wire 400. When the upper spring wire 200, middle spring wire 300, and lower spring wire 400 are deformed due to supporting passengers, a small section of the spring wire wrapped by the upper plastic strip perforated convex parts 510, middle plastic strip perforated convex parts 610, and lower plastic strip perforated convex parts 710 will collapse as a whole, and the situation where the force is concentrated at a single point of the spring wire will no longer occur, thereby prolonging the service life of the spring wire.

[0039] 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 merely illustrative. For example, the division of the mechanism is only a logical function division, and there may 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.

[0040] In the description of the present invention, 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, and is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present invention.

[0041] Based on the above inspiration from the ideal embodiments of the present invention, through the above description, those skilled in the relevant art can make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention 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 injection-molded automotive seat frame, characterized in that, include: A pair of side rods (100), wherein an upper spring wire (200), a middle spring wire (300), and a lower spring wire (400) are connected between the side rods (100) from top to bottom; An upper plastic strip (500) is provided with at least three upper plastic strip perforated protrusions (510) to wrap the middle part and both sides of the middle part of the upper spring wire (200); A middle plastic strip (600) having at least three middle plastic strip hole protrusions (610) disposed thereon to wrap the middle portion and both sides of the middle portion of the middle spring wire (300); The lower plastic strip (700) is provided with at least three lower plastic strip hole protrusions (710) to wrap the middle part and both sides of the middle part of the lower spring wire (400).

2. The injection-molded automobile seat frame according to claim 1, characterized in that: Both sides of the upper plastic strip (500) are respectively connected to the side rods (100); Both sides of the middle plastic strip (600) are respectively connected to the side rods (100); Both sides of the lower plastic strip (700) are respectively connected to the side rods (100).

3. The injection-molded automobile seat frame according to claim 2, characterized in that: The upper plastic strip with hole convex parts (510) are connected to the corresponding middle plastic strip with hole convex parts (610) through the upper sharing plastic strip (810); The middle plastic strip with hole convex parts (610) are connected to the corresponding lower plastic strip with hole convex parts (710) through the lower sharing plastic strip (820).

4. The injection-molded automobile seat frame according to claim 3, characterized in that: The lower sharing plastic strip (820) is provided with a lower sharing plastic strip hole convex portion (821) and is penetrated by a transition spring wire (830).

5. The injection-molded automobile seat frame according to claim 4, characterized in that: The side rod (100) is provided with a plurality of staggered four-way connectors (900) for connecting corresponding upper spring wires (200), middle spring wires (300), and lower spring wires (400).

6. The injection-molded automobile seat frame according to claim 5, characterized in that: The staggered four-way connector (900) comprises: A main penetration pipe (910) having a diameter adapted to the side rod (100); The auxiliary penetration tube (920) is arranged on the outer wall of the main penetration tube (910) to wrap the penetrated upper spring wire (200), middle spring wire (300), and lower spring wire (400).

7. The injection-molded automobile seat frame according to claim 6, characterized in that: The middle part of the upper spring wire (200) is bent upward to form an upper spring wire middle bending part (210), and both sides of the middle part of the upper spring wire (200) are bent downward to form upper spring wire side bending parts (220); The middle portion of the middle spring wire (300) is bent upward to form a middle spring wire middle bending portion (310), and both sides of the middle portion of the middle spring wire (300) are bent downward to form middle spring wire side bending portions (320); The middle portion of the lower spring wire (400) is bent upward to form a lower spring wire middle bending portion (410), and both sides of the middle portion of the lower spring wire (400) are bent downward to form lower spring wire side bending portions (420).

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