Rigidity reinforcing structure of automobile seat backrest framework

Abstract

The utility model relates to the technical field of seat parts, in particular to an automobile seat backrest framework rigidity reinforcing structure which comprises two backrest side plates, a lower transverse plate, two reinforcing plates, two limiting baffles and two angle adjusters. The rigidity of the two backrest side plates can be improved through the two reinforcing plates, the reinforcing plates are fixed to the outer sides of the backrest side plates in an electric resistance welding mode, welding is convenient, the electric resistance welding mode is attractive, no welding scar is left, operation is easy, convenient and rapid, the reinforcing plates are 2mm thick plates and high in strength, and the recliner and the limiting baffle are directly welded to the reinforcing plates. Meanwhile, the manual / electric backrest side edge plate is universal, and only a reinforcing plate punching die needs to be opened again when the automobile seat backrest framework is matched with different recliners, so that the problem that an existing automobile seat backrest framework is poor in rigidity is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair parts technical field especially relates to a car seat backrest framework rigidity reinforcing structure. BACKGROUND

[0002] The car seat framework is the basic component of the car seat, mainly composed of two parts of the cushion framework and the backrest framework. The performance of the backrest framework directly affects the strength, rigidity and stability of the seat assembly, and plays an important role in the safety of the whole vehicle. When the car is hit, the safety airbag fully plays the protection function to provide upper body protection for the passenger. The seat backrest side plate is the side plate of the seat backrest. When driving normally, it is the main component supporting the upper body weight of the passenger, and when being hit, it is the main component bearing the impact of the human body on the seat framework, so the side plate has a great influence on the rigidity of the seat framework.

[0003] The existing seat backrest side plate reinforcing plate is arranged on the inner side or outer side of the side plate. Arranging on the outer side has the risk of cutting the airbag and wire harness. Arranging on the inner side: 1. The backrest side plate cannot be used with a manual / electric angle adjuster, and a punching die needs to be added, increasing the cost; 2. The internal space is small, and the welding quality cannot be guaranteed, which may cause missed welding and virtual welding, thereby producing abnormal noise. The thickness of the existing seat backrest reinforcing plate is generally 1.2mm or 1.5mm, and when the collision demand is large, the rigidity of the framework cannot be guaranteed. SUMMARY

[0004] The utility model aims at providing a car seat backrest framework rigidity reinforcing structure, which solves the problem of poor rigidity of the existing car seat backrest framework.

[0005] To achieve the above-mentioned purpose, the utility model provides a car seat backrest framework rigidity reinforcing structure, which comprises two backrest side plates, a lower horizontal plate, two reinforcing plates, two limiting baffle plates and two angle adjusters.

[0006] The lower horizontal plate is rotatably connected with the two backrest side plates and located between the two backrest side plates. The two reinforcing plates are fixedly connected with the two backrest side plates and located on one side of each of the two backrest side plates. The two limiting baffle plates are fixedly connected with the two reinforcing plates and located on one side of each of the reinforcing plates. The two angle adjusters are fixedly connected with the two reinforcing plates and connected with the two lower horizontal plates, and located on one side of each of the reinforcing plates.

[0007] Among them, the reinforcing plate has a plurality of resistance welding columns, and the plurality of resistance welding columns are connected on the backrest side plate through the reinforcing plate.

[0008] Among them, the backrest side plate has a mounting hole, and the mounting hole is the lower side of the backrest side plate.

[0009] The reinforcing plate has a protrusion, a large surface and a flange, the protrusion is located on the reinforcing plate, the large surface is located on one side of the reinforcing plate close to the protrusion, and the flange is located between the protrusion and the flange.

[0010] The automobile seat backrest framework rigidity reinforcing structure further comprises two inner cylinders, a sliding cylinder, buffer springs and dampers, the two inner cylinders are fixedly connected with the two backrest side plates respectively and are located on the two backrest side plates respectively, the sliding cylinder is in sliding connection with the two inner cylinders and is located outside the two inner cylinders, the buffer springs are fixedly connected with the two inner cylinders and are located between the two inner cylinders, and the dampers are fixedly connected with the two inner cylinders and are located between the two inner cylinders.

[0011] The automobile seat backrest framework rigidity reinforcing structure of the utility model, two the backrest side plates provide installation condition for the lower horizontal plate, the steel degree of two the backrest side plates can be improved through two the reinforcing plate, the reinforcing plate is fixed on the outside of the backrest side plate through the mode of resistance welding, is convenient for welding, the mode of resistance welding is beautiful and does not leave welding scar, and operation is simple and convenient, the reinforcing plate is 2mm thick plate, and the strength is high, the angle adjuster and the limit baffle are directly welded on the reinforcing plate, improve the strength of the angle adjuster and the limit baffle, and the manual / electric backrest side plate realizes general-purpose at the same time, and matching different angle adjusters only need to re-open reinforcing plate punching die, thereby solve the problem that the rigidity of the existing automobile seat backrest framework is poor. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows.

[0013] Fig. 1 It is a structure schematic view of the automobile seat backrest framework rigidity reinforcing structure of the utility model.

[0014] Fig. 2 It is a sectional view of the automobile seat backrest framework rigidity reinforcing structure of the utility model.

[0015] Fig. 3 It is a side view of the automobile seat backrest framework rigidity reinforcing structure of the utility model.

[0016] In the drawing: 1-backrest side plate, 2-lower horizontal plate, 3-reinforcing plate, 4-limit baffle, 5-angle adjuster, 6-resistance welding column, 7-mounting hole, 8-protrusion, 9-large surface, 10-flange, 11-inner cylinder, 12-sliding cylinder, 13-buffer spring, 14-damper. DETAILED DESCRIPTION

[0017] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0018] Please refer to Figs. 1-3 The present application provides a kind of automobile seat backrest framework rigidity reinforcing structure, including two backrest side plates 1, lower horizontal plate 2, two reinforcing plates 3, two limit baffle 4 and two angle adjuster 5;

[0019] The lower horizontal plate 2 is rotatably connected with the two backrest side plates 1, and is located between the two backrest side plates 1, the two reinforcing plates 3 are fixedly connected with the two backrest side plates 1 respectively, and are located on one side of the two backrest side plates 1 respectively, the two limit baffle 4 are fixedly connected with the two reinforcing plates 3 respectively, and are located on one side of the reinforcing plate 3 respectively, the two angle adjuster 5 are fixedly connected with the two reinforcing plates 3 respectively, and are connected with the two lower horizontal plate 2 respectively, and are located on one side of the reinforcing plate 3 respectively.

[0020] In the embodiment, the two backrest side plates 1 provide installation conditions for the lower horizontal plate 2, the steel degree of the two backrest side plates 1 can be improved by the two reinforcing plates 3, the reinforcing plate 3 is fixed on the outside of the backrest side plate 1 by resistance welding, which is convenient for welding, resistance welding is beautiful and does not leave welding scar, and the operation is simple and fast, the reinforcing plate 3 is 2mm thick plate, which has high strength, the angle adjuster 5 and the limit baffle 4 are directly welded on the reinforcing plate 3, which improves the strength of the angle adjuster 5 and the limit baffle 4, and the manual / electric backrest side plate is universal, and different angle adjuster 5 only needs to be re-opened reinforcing plate 3 punching die, thereby solving the problem of poor rigidity of the existing automobile seat backrest framework.

[0021] Further, the reinforcing plate 3 has a plurality of resistance welding studs 6, and the plurality of resistance welding studs 6 are connected to the backrest side plate 1 by penetrating the reinforcing plate 3.

[0022] In the embodiment, the reinforcing plate 3 can be welded on the backrest side plate 1 by the plurality of resistance welding studs 6.

[0023] Further, the backrest side plate 1 has a mounting hole 7, and the mounting hole 7 is on the lower side of the backrest side plate 1.

[0024] In the embodiment, the mounting hole 7 is used for mounting the angle adjuster 5, and the mounting hole 7 can be adjusted according to the model of the angle adjuster 5. Further, the backrest side plate 1 has a mounting hole 7, and the mounting hole 7 is on the lower side of the backrest side plate 1.

[0025] Further, the reinforcing plate 3 has a protrusion 8, a large surface 9 and a flange 10, the protrusion 8 is located on the reinforcing plate 3, the large surface 9 is located on the side of the reinforcing plate 3 close to the protrusion 8, and the flange 10 is located between the protrusion 8 and the flange 10.

[0026] In the embodiment, the upper end of the reinforcing plate 3 is sunken by 1.1 mm from the outer plane of the backrest side plate 1, hidden in the backrest side plate 1, and has an inward flange 10 at the upper end opening and an outward protrusion 8 in the middle, which is flush with the outer plane of the backrest side plate 1, and the upper end of the reinforcing plate 3 forms a staggered height, the protrusion 8 supports the airbag to prevent the reinforcing plate 3 from cutting the airbag, and the protrusion 8 prevents the backrest side plate 1 from contacting the large surface 9 of the reinforcing plate 3 to produce abnormal noise.

[0027] Further, the automobile seat backrest framework rigidity reinforcing structure further comprises two inner cylinders 11, a sliding cylinder 12, a buffer spring 13 and a damper 14, the two inner cylinders are respectively fixedly connected with the two backrest side plates 1 and are respectively located on the two backrest side plates 1, the sliding cylinder 12 is in sliding connection with the two inner cylinders 11 and is located outside the two inner cylinders 11, the buffer spring 13 is fixedly connected with the two inner cylinders 11 and is located between the two inner cylinders 11, and the damper 14 is fixedly connected with the two inner cylinders 11 and is located between the two inner cylinders 11.

[0028] In the embodiment, the sliding cylinder 12 can slide with the two inner cylinders 11, when the backrest side plate 1 receives an impact, the inner cylinders 11 slide towards the side close to the sliding cylinder 12, and press the buffer spring 13 and the damper 14 to buffer the backrest side plate 1 and improve the stiffness of the backrest side plate 1.

[0029] The above only discloses one or more preferred embodiments of the present application, which cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A stiffening structure for a car seat back frame, characterized in that, It includes two backrest side panels, a lower cross panel, two reinforcing plates, two limit baffles, and two angle adjusters; The lower horizontal plate is rotatably connected to the two backrest side plates and is located between the two backrest side plates. The two reinforcing plates are fixedly connected to the two backrest side plates and are located on one side of the two backrest side plates respectively. The two limiting baffles are fixedly connected to the two reinforcing plates and are located on one side of the reinforcing plates respectively. The two angle adjusters are fixedly connected to the two reinforcing plates and connected to the two lower horizontal plates respectively, and are located on one side of the reinforcing plates respectively.

2. The automotive seat backrest frame stiffness reinforcement structure as described in claim 1, characterized in that, The reinforcing plate has multiple resistance welded columns, all of which penetrate the reinforcing plate and connect to the backrest side panel.

3. The automotive seat backrest frame stiffness reinforcement structure as described in claim 2, characterized in that, The backrest side panel has mounting holes, which are located on the lower side of the backrest side panel.

4. The automotive seat backrest frame stiffness reinforcement structure as described in claim 1, characterized in that, The reinforcing plate has a protrusion, a large surface, and a flange. The protrusion is located on the reinforcing plate, the large surface is located on the side of the reinforcing plate closer to the protrusion, and the flange is located between the protrusion and the flange.

5. The automotive seat backrest frame stiffness reinforcement structure as described in claim 2, characterized in that, The car seat backrest frame stiffness reinforcement structure also includes two inner cylinders, a sliding cylinder, a buffer spring, and a damper. The two inner cylinders are respectively fixedly connected to the two backrest side plates and are respectively located on the two backrest side plates. The sliding cylinder is slidably connected to the two inner cylinders and is located outside the two inner cylinders. The buffer spring is fixedly connected to the two inner cylinders and is located between the two inner cylinders. The damper is fixedly connected to the two inner cylinders and is located between the two inner cylinders.

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