Novel PIP headrest structure

Abstract

The utility model relates to a novel PIP headrest structure which comprises a skin, a PU bag, a foaming body and a headrest rod. Wherein a PU bag tightly attached to the skin is arranged in the skin, and injection ports are formed in the highest points of the skin and the PU bag; the PU bag is filled with the foaming main body, and the PU bag filled with the foaming main body is of a bag-shaped structure which is profiled with the skin; and the headrest rod is arranged in the PU bag and is wrapped and fixed by the foaming main body. According to the headrest structure, the PU bag profiled with the skin is additionally arranged in the headrest structure, the face cover does not need to be pretreated through the structural design, working hours are saved, the production efficiency of the headrest is guaranteed, and meanwhile the problem of material overflowing on the surface of the skin can be solved; in addition, due to the design of the PU bag, the sizes of the two ends of the material injection opening in the surface cover can be further reduced, so that an anti-overflow rubber strip on an existing headrest structure is omitted, and the headrest cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of headrest structures, and in particular relates to a novel PIP headrest structure. Background Art

[0002] With the rapid development of the automobile industry, safety and comfort have become the primary criteria for car buyers. Seat headrests are one of the national mandatory vehicle certification and testing items. When a vehicle rear-end collision or collision occurs, it can not only effectively buffer the huge instantaneous impact force when an accident occurs, protect the fragile cervical bones of the human head, reduce the chance of neck injury, and improve the safety of the driver, but also beautify and decorate the riding environment. Therefore, how to improve the safety and comfort of headrests is one of the focuses of current car seat design and manufacturing processes.

[0003] Traditional car headrests mainly adopt a wrapping design, that is, foaming is first performed and then the cover is wrapped, which has low assembly efficiency, and the head cover and the headrest body are separated from each other. After long-term use, the headrest cover is prone to loosening and falling off outside the headrest body, which in turn affects the appearance, comfort, safety and service life of the seat headrest. At present, the design and production of foreign seat headrests are popularly using a PIP pouring foaming technology (pour-in-place), that is, directly pouring foaming material into the sewn cover to complete the molding in one go. The headrests produced using this process not only have high assembly efficiency, but also have a full and beautiful appearance. However, this process has a low product qualification rate because the foaming material is easy to overflow from the seams, which seriously affects the promotion and use of this process in China.

[0004] Patent 201020551515.8 solves the common problem of material leakage in the production process of automobile headrests by targeting the currently used PIP mold pouring foaming process. This patent solves the problem of material leakage of foaming raw materials at the seams of the cover due to internal pressure by processing the cover, thereby improving product quality. However, this method requires pretreatment of the cover, resulting in low production efficiency of the headrest and increased costs. Therefore, it is necessary to provide a new PIP headrest structure that can solve the technical problem of material overflow from the gaps on the skin surface during the processing of the existing PIP headrest while ensuring the production efficiency of the headrest. Utility Model Content

[0005] In view of the above-mentioned shortcomings and deficiencies, the purpose of the utility model is to provide a new PIP headrest structure, which has an additional PU bag in the shape of the skin inside. This structural design does not require pretreatment of the face cover, saves working hours, ensures the production efficiency of the headrest, and overcomes the problem of overflow on the skin surface. In addition, the design of the PU bag can further reduce the size of both ends of the injection port on the face cover, thereby omitting the anti-overflow rubber strip on the existing headrest structure and reducing the cost of the headrest.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel PIP headrest structure comprises a skin, a PU bag, a foam body and a headrest rod; wherein a PU bag which is closely fitted with the skin is arranged inside the skin, and injection ports are arranged at the highest points of the skin and the PU bag; the foam body is filled inside the PU bag, and the PU bag after being filled with the foam body is a bag-shaped structure which is shaped like the skin; the headrest rod is arranged in the PU bag and is wrapped and fixed by the foam body.

[0008] As a preferred embodiment of the present invention, the length of the injection port is controlled at 5-7 cm.

[0009] Advantages and beneficial effects of the utility model:

[0010] (1) The PIP headrest provided by the utility model has a simple structure. By adding a PU (polyurethane) bag inside the face cover, the problem of foam material overflow that commonly occurs in existing PIP headrests, which affects the appearance quality, is solved. The utility model is simple, efficient and low-cost. In addition, its simple structure facilitates production and helps reduce costs.

[0011] (2) Ordinary PIP headrests on the market have anti-overflow rubber strips sewn on the injection port of the cover. The new PIP headrest structure provided by the utility model sets the opening of the cover (injection port) at the highest point, and after adding a PU bag, the size of both ends of the injection port on the cover can be reduced to a smaller size (about 6 cm), and the anti-overflow rubber strips can be eliminated, making the production of headrests more efficient and greatly reducing costs.

[0012] (3) The PIP headrest structure provided by the utility model can adjust the hardness of the headrest by adjusting the foaming material ratio of the foaming body, thereby greatly improving the comfort of the headrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a new type of PIP headrest structure after assembly provided by the utility model;

[0014] Figure 2 The utility model provides a novel PIP headrest structure. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0017] like Figure 1 , Figure 2 As shown, a new type of PIP headrest structure provided in this embodiment includes a skin 1, a PU bag 2, a foam body 3, and a headrest rod 4; wherein, the skin 1 is provided with a PU bag 2 that is tightly fitted with the skin, and injection ports (not shown) are provided at the highest points of the skin 1 and the PU bag 2; the PU bag 2 is filled with the foam body 3, and the PU bag 2 after being filled with the foam body 3 is a bag-shaped structure that imitates the skin 1; the headrest rod 4 is arranged in the PU bag 2 and is wrapped and fixed by the foam body 3.

[0018] Furthermore, in this embodiment, the length of the injection port is controlled to be 5-7 cm, preferably 6 cm.

[0019] The processing steps of the novel PIP headrest structure of the utility model are as follows: 1. Sew the cover 1 according to the designed shape, and leave an opening (injection port) in the cover, which is usually set as the highest point; 2. Put the PU bag 2 into the cover 1; 3. Put the headrest rod 4 and the insert into the PU bag 2; 4. Put the above whole into the mold; 5. Pour the foaming material at the opening (injection port) and close the mold; 6. After aging, open the mold and take out the headrest assembly.

[0020] The PIP headrest structure provided by the utility model can adjust the hardness of the headrest by adjusting the foaming material ratio of the foaming body 3, thereby greatly improving the comfort of the headrest. In addition, after adding the PU bag 2, the size of the two ends of the injection port on the face cover 1 can be reduced to about 6 cm, so that the anti-overflow rubber strip on the existing headrest structure can be eliminated, making the headrest production more efficient and greatly reducing the cost.

[0021] The above are specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A new PIP headrest structure, characterized in that: It includes a skin, a PU bag, a foam body, and a headrest rod; wherein, a PU bag tightly fitted with the skin is arranged inside the skin, and injection ports are arranged at the highest points of the skin and the PU bag; the foam body is filled in the PU bag, and the PU bag filled with the foam body is a bag-shaped structure that imitates the skin; the headrest rod is arranged in the PU bag and is wrapped and fixed by the foam body.

2. A novel PIP headrest structure according to claim 1, characterized in that: The length of the injection port is controlled at 5-7 cm.

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