CN204736783U

CN204736783U - Plastics and regional shell fragment formula structure of panel beating cooperation

Info

Publication number: CN204736783U
Application number: CN201520537361.XU
Authority: CN
Inventors: 杨光亮; 肖航; 张俊; 卢汉民
Original assignee: Dongfeng Peugeot Citroen Automobile Co Ltd
Current assignee: Dongfeng Peugeot Citroen Automobile Co Ltd
Priority date: 2015-07-22
Filing date: 2015-07-22
Publication date: 2015-11-04
Anticipated expiration: 2025-07-22

Abstract

The utility model relates to a plastics and regional shell fragment formula structure of panel beating cooperation belongs to auto plastic exterior trim technical field. Including plastics shell fragment and panel beating, it has polygonal groove to open on the panel beating, the plastics shell fragment inlays to be established in polygonal groove, the plastics shell fragment is the thick gradual change structure in the thin rear end of head end, the head end of plastics shell fragment is the shell fragment part, and the interlude is transition region, and the rear end is flange structure, wherein, shell fragment part to buckle in the polygonal groove and with polygonal groove lateral wall interference fit. The utility model relates to a shell fragment formula cooperation structure reduces or avoids deformation trend under the prerequisite of guaranteeing the outward appearance, plays formula line contact and elastic construction and remedies the interference that the deformation results in, avoids producing the abnormal sound, reduce double -colored injection mold cost.

Description

Plastics and panel beating mating area spring-piece type structure

Technical field

The utility model belongs to automobile plastic exterior trim technical field, is specifically related to a kind of plastics and panel beating mating area spring-piece type structure.

Background technology

Plastics exterior trimming parts is the important component part of automobile, make up sheet metal component for punching press and heavily quantitative limitation, possesses decoration, the functions such as sealing and protection, but there is the apparent defects such as distortion and shrink mark due to Plastic Parts injection moulding later, particularly distortion causes with the laminating of opponent's part bad, the functional defects such as noise can be produced, conventional employing double-shot moulding for this reason, as Fig. 1, shown in Fig. 2, flexible glue 1 and ebonite 2 are fitted and are made up gap, but mould and injection moulding cost larger relative to monochromatic injection moulding, in this context, design spring-piece type fit structure reduces or avoids deformation tendency under the prerequisite ensureing outward appearance.

Utility model content

The purpose of this utility model is exactly the defect for prior art, provides a kind of plastics and panel beating mating area spring-piece type structure.

The technical solution adopted in the utility model is: comprise plastic shrapnel and panel beating, described panel beating has polygon groove, described plastic shrapnel is embedded in polygon groove, described plastic shrapnel is the thick grading structure in the thin rear end of head end, the head end of described plastic shrapnel is shell fragment part, and interlude is transitional region, and rear end is turnup structure, wherein, shell fragment part to polygon groove inner bending and with polygon groove sidewall interference fit.

Further, the thickness L of described plastic shrapnel is between 1.2-3mm.

Further, the length m of described shell fragment part is 10-15mm.

Further, the length n of described transitional region is 15-20mm.

Further, seal ring is provided with between described plastic shrapnel and polygon groove sidewall.

The utility model design spring-piece type fit structure reduces or avoids deformation tendency under the prerequisite ensureing outward appearance, and bullet formula linear contact lay and elastic construction make up the interference of being out of shape and causing, and avoid producing abnormal sound; Reduce bicolor injection mould cost, Making mold is easy to process, and injection machine can be simple and regular injection-moulding device, and material can be conventional PP material, need not use the elastomeric material such as TPE, TPV; Avoid simple monochromatic injection-moulded plastic part to fit bad situation, eliminate the risk of two kinds of part junctions shake abnormal sounds.

Accompanying drawing explanation

Fig. 1 is prior art double-shot moulding flexible glue and ebonite fit structure schematic diagram;

Fig. 2 is A-A place section-drawing in Fig. 1;

Fig. 3 is the utility model structural representation;

Fig. 4 is B-B place section-drawing in Fig. 3.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form restriction to the utility model.

As shown in Figure 3, Figure 4, the utility model comprises plastic shrapnel 3 and panel beating 4, panel beating has polygon groove 4.1, polygon groove 4.1 is V-slot, plastic shrapnel 3 is corresponding with polygon groove 4.1 shape and be embedded in polygon groove 4.1, plastic shrapnel 3 is the thick grading structure in the thin rear end of head end, the head end of plastic shrapnel 3 is shell fragment part 3.1, interlude is transitional region 3.2, rear end is flange 3.3 structure, wherein, shell fragment part 3.1 to polygon groove 4.1 inner bending and with polygon groove 4.1 sidewall interference fit.Seal ring 5 is provided with between plastic shrapnel 3 and polygon groove 4.1 sidewall.

During installation, first two of plastic shrapnel 3 flange 3.3 parts are first put into polygon groove 4.1, fill in seal ring 5 simultaneously, then the 3rd of plastic shrapnel 3 the limit and shell fragment part 3.1 be pressed in polygon groove 4.1, make plastic shrapnel 3 outer and polygon groove 4.1 interference fit fastening.

The utility model plastic shrapnel, by monochromatic injection mo(u)lding, is then fixed in the rigid materials such as panel beating by clamp or screw, contacts with mating area elastic piece structure around panel beating, ensures that gap and face are poor.

The utility model is gradient to the 1.2mm of termination from rear end 3mm by the thick L of the material of gradual change, ensure elasticity; Transitional region length n is 15-20mm, ensures that outward appearance does not occur speck; The plastic shrapnel of zigzag can reinforced plastics part edge strength, and alleviate injection molding deformation amount, in order to ensure elasticity, shell fragment part 3.1 length m is 10-15mm; The Exposure of termination thickness 1.2mm, avoids material thicker than the thin deficient material caused, and also takes into account little cooperation and avoids abnormal sound and fit bad.

The utility model plastic shrapnel formula structure ensures the cooperation between part.Apply this structure and comprise following part: automobile plastic exterior trimming parts, such as car door set square, front wall air-inlet grille etc. coordinate more part with vehicle body.

The content that this specification sheets is not described in detail belongs to the known prior art of professional and technical personnel in the field.

Claims

1. plastics and panel beating mating area spring-piece type structure, comprise plastic shrapnel (3) and panel beating (4), it is characterized in that: described panel beating has polygon groove (4.1), described plastic shrapnel (3) is embedded in polygon groove (4.1), described plastic shrapnel (3) is the thick grading structure in the thin rear end of head end, the head end of described plastic shrapnel (3) is shell fragment part (3.1), interlude is transitional region (3.2), rear end is flange (3.3) structure, wherein, shell fragment part (3.1) to polygon groove (4.1) inner bending and with polygon groove (4.1) sidewall interference fit.

2. plastics according to claim 1 and panel beating mating area spring-piece type structure, is characterized in that: the thickness L of described plastic shrapnel (3) is between 1.2-3mm.

3. plastics according to claim 1 and panel beating mating area spring-piece type structure, is characterized in that: the length m of described shell fragment part (3.1) is 10-15mm.

4. plastics according to claim 1 and panel beating mating area spring-piece type structure, is characterized in that: the length n of described transitional region (3.2) is 15-20mm.

5. plastics according to claim 1 and panel beating mating area spring-piece type structure, is characterized in that: be provided with seal ring (5) between described plastic shrapnel (3) and polygon groove (4.1) sidewall.