KR20030076258A - Flocking of door belt weather strip and glass run for vehicles - Google Patents

Abstract

PURPOSE: A flocking member for a door belt weather strip and a glass run of a vehicle is provided to prevent environmental pollution and problems in treating the surface of an olefin group resin layer for thermal bonding, and to reduce expenses by eliminating flocking process during manufacturing process with forming the flocking member additionally. CONSTITUTION: A flocking member(50) is attached to a pressure part of an elastic body or the elastic body composed of a door belt weather strip and a glass run to shield a door of a vehicle and guide lifting of the door glass, and directly contacted to the glass. The elastic body is fixed firmly in the vehicle body. The flocking member comprises bond layers(63,64) spread on and under a textile layer(62) made of nylon or polyester, an olefin group resin layer(60) attached to the bond layer and mounted to the elastic body, and a flocking layer(66) mounted to the bond layer and contacted to the door glass.

Description

FLOCKING OF DOOR BELT WEATHER STRIP AND GLASS RUN FOR VEHICLES}

The present invention relates to a flocking member applied to a door belt weather strip and a glass run of an automobile.

For example, to prevent dust, water, wind, etc. from flowing into the inner space of the door in which the door glass is accommodated, the door glass entrance and exit of the car to guide the lifting of the door glass in Figures 1 to 3 As such, the door belt strip 2 and the glass run 4 are applied.

The door belt weather strip 2 and the glass run 4 are elastic bodies 12 fixed to the door trim 6, the door frame 8, the door panel 10, and the like, as shown in FIGS. 2 and 3; The pressing portion 16 protrudes from the elastic body 12 toward the glass 14 to elastically contact the glass 14, and the contact portion of the pressing portion 16 and the glass 14 of the elastic body 12. It is arranged in the blocking member 18 to prevent the wear of the pressing portion 16 and the elastic body 14 and the lifting operation of the glass 14 to be made naturally.

Accordingly, the fixed body 12 is fixed to the vehicle body by using the elastic body 12, and the pressing unit 16 contacts the both surfaces or the edge surfaces of the glass 14, so that dust, water, The wind is prevented from entering, and guides the lifting of the door glass 14.

These door belt weather strips and glass runs are usually made of PVC, EPDM (Ethylene-Propylene-Diene-Terpolymer), but recently, olefin-based TPE (Thermoplastic Elastomer, thermoplastic) can be recycled as a solution to environmental problems. The use of the elastomer) is increasing, and look at the manufacturing process thereof, as shown in FIG.

First, when the melt of the elastomer is extruded through the extrusion die 102 in the extruder 100, it is passed through the sizing die 104 to maintain accurate dimensions, and then cooled in the cooling tank 106 having the cooling water, and the cooling tank 106. ), The water is dried in the dryer (108).

Then, the material that has passed through the dryer 108 is subjected to a primer treatment at the contact portion with the glass in the primer processor 110, and then applied with the bonding material in the bonding material applicator 112, followed by the electrostatic seeding machine 114. Flocking of nylon piles (NYLON PILE) of 1 to 3 denier from 0.3 to 1 mm is achieved at.

After the flocking operation is performed as described above, the bond is dried in the drying furnace 116, the remaining file which is not flocked in the washer 118 is removed, and the cutter 120 is cut to the required size so that one door Manufactured from belt weather strips and glass runs.

However, in the case of manufacturing the door belt weather strip and glass run as described above, the use of flocking scattering and toxic primer is used, so that the working environment is not very good, such as harming the worker's health. There is a problem that the economic burden is large.

In addition, olefin-based TPE, which is an eco-friendly material that can be recycled and has a low specific gravity, is increasingly used as a substitute for PVC and EPDM, so it is difficult to handle because of poor adhesion, and the use of toxic primers increases, and the quality of flocking is increased. Falling involves a problem.

Accordingly, in the proposal of "EP1,072,712A1", a member which has been flocculated by a separate process is proposed as a means for solving the above disadvantages, and this proposal is formed by forming a roll type by flocking the olefin resin layer. A separate process is to be heat-sealed to the required portion of the elastic body to be extruded.

However, the above olefin resins (PE, PE copolymer, PP, etc.) have the advantage that they are easily heat-sealed to EPDM or olefin TPE, etc., but the adhesive strength is high. However, since olefin resins are poorly bonded materials, they are expensive after surface treatment such as corona treatment. It is uneconomical to have a flocking treatment after the primer treatment, etc., and there is a problem in that the flocking file is easily peeled off.

In addition, the olefin resin has a problem that low tensile strength and heat melting temperature are easily melted due to the tensile force by the feed device of the roll tape, the high temperature around the extruder, and the like, thereby easily breaking the roll tape.

In addition, the lower the heat melting temperature is good for smooth thermal bonding, but the resin layer having a low melting point has a problem that deformation, breaking, etc. are more severely generated.

Therefore, the present invention has been invented to solve the above problems, and an object of the present invention is to provide a blocking member separate from an elastic body such as a door belt weather strip and glass run, thereby eliminating the blocking process in the manufacturing process, The present invention provides a flocking member of an automobile door belt weather strip and glass run that is economically helpful and can prevent the surface treatment problem of the olefin resin layer for thermal bonding and the deformation and breakage in the production process.

1 is a side view of a passenger car for showing an example of the application of the present invention.

2 is a cross-sectional view taken along the line AA of FIG.

3 is a cross-sectional view taken along the line B-B in FIG.

Figure 4 is a partial perspective view of the weather strip for showing the application of the present invention.

5 is a cross-sectional view of the flocking member according to the present invention.

6 is a view showing a process of applying the flocking member according to the invention to the elastic body as a base material.

7 is a cross-sectional view taken along the line C-C in FIG.

8 is a view showing a conventional manufacturing process.

In order to realize this, the present invention, in the concealing and protecting the interior of the door of the vehicle, in forming the door belt weather strip for guiding the lifting of the door glass and the flocking member attached to the elastic body of the glass run,

Bond layers which are applied from the upper and lower with a fabric layer in the center; An olefin resin layer attached to one side of the bond layer and attached to the elastic body; The present invention provides a car door belt weather strip and a glass run flocking member including a flocking layer implanted in a bond layer opposite to the olefin resin layer and in contact with a door glass.

Wherein the fabric layer is made of nylon or polyester material woven fabric weft and warp, the olefin resin layer is formed of PP copolymer or PP terpolymer, the flocking layer is characterized in that the planting of nylon pile do.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described in detail.

4 is a view for showing the application state of the flocking member 50 according to the present invention, the flocking member 50 of the pressing portion 54 of the elastic body 52 constituting the door belt weather strip and the glass run. It is directly attached to one surface or the elastic body 52 and is applied in the same state as in FIGS. 2 and 3 (in FIGS. 2 and 3, reference numerals are assigned to the blocking members 18 and 20, the elastic body 12, and the pressing unit 16. ).

The elastic body 52 to which the flocking member 50 is attached is made of a material having a suitable elastic force as in the prior art and is firmly fixed to a vehicle body including a door frame.

The pressing portion 54 formed on one side of the elastic body 52 is in contact with the door glass in a state of having a suitable elastic force to prevent the inflow of this material such as water, dust, etc. into the door and at the same time lifting the glass Will guide you.

In forming the blocking member 50 attached to the pressing portion 54 and other predetermined portions of the elastic body 52 and in direct contact with the glass, the present invention, as shown in Figure 5, the olefin resin layer 60 ), The bond layers 63 and 64 to which the fabric layer 62 is buried, and the laminated layer 66 are laminated.

More specifically, the olefin resin layer 60 is a PP copolymer {copolymer of propylene (Propylene) and ethylene (Ethylene)} or PP terpolymer (propylene (Propylene), ethylene (Ethylene), butene (Butene) Film as a raw material of the terpolymer}) and adhered to the bond layer 63 on one side by a conventional method such as the fabric layer 62 and dry laminating, solvent-free laminating, or by extrusion coating in an extruder 52) and by heat fusion.

And the fabric layer 62 is formed of a weave fabric with a weft of 50 to 150 denier inclined, made of a filament yarn spun with nylon or polyester material, the bond layer 63 is applied to the fabric layer 62 64 penetrates into the gap between the weft and the warp yarn of the fabric layer 62 and is applied upward and downward.

In addition, the flocking layer 66 formed on the upper bond layer 64 by the electrostatic seedling method is made of nylon piles 68 of about 1 to 3 deniers of about 0.3 to about 1 mm, about 50 to about 150 g / m 2. Flocked to

According to the above-mentioned flocking member 50, the bond layer 63 which penetrates and apply | coats into the clearance of one side of the weft and the inclination of the fabric layer 62 is formed, In this, the olefin resin layer 60 is treated with a separate primer The adhesive force is increased by flocking the nylon pile 68 of the flocking 66 to the bond layer 64 that is strongly adhered to the fabric layer 62 and penetrates into the other weft yarn and the inclined gap of the fabric layer 62.

In addition, between the olefinic resin layer 60 and the flocking layer 66 including the nylon pile 68 in a state where the fabric layer 62 having high tensile strength and heat melting point is buried in the bond layers 63 and 64. By being located in the above, the tensile strength as a whole becomes high, the breakage due to the high temperature is not generated, and the heat-adhesive temperature of the olefin resin layer 60 can be lowered.

The flocking member 50 thus formed is made of one plate-like member, cut into strip-shaped members having a predetermined width depending on the intended use, and completed in the form of a roll tape.

And the case of applying the above-mentioned flocking member 50 to the door belt weather strip of TPE material as an example, as shown in Figure 6 and 7, the elastic body 52 of the door belt weather strip is extruder 70 When extruded through the extrusion die 72, the flocking member 50 in the form of a roll tape and the pressing portion 54 of the elastic body 50 are thermally fused while passing through the guide die 74.

That is, the elastic body 52 is formed in a predetermined shape while passing through the extrusion die 72 in the state of the molten resin, and retains its own heat, and by the heat thereof, the olefin resin layer of the flocking member 50 ( 60) is melted and thermal fusion is to be made.

After the flocking member 50 is thermally fused to the pressing portion 54 of the elastic body 52 in this manner, the cooling member 78 is cooled in the cooling bath 78 via the sizing die 76 for accurate dimension formation, and according to the required length of the cutter ( 80) to make one door belt weather strip.

In the case where the elastic body 50 is made of an EPDM material, it is preferable that the heat of vulcanization in the vulcanization step or the heat fusion after the separate heating step be used.

As described above, the flocking member according to the present invention provides a flocking member separately from an elastic body such as a door belt weather strip and a glass run, thereby eliminating the flocking process in the manufacturing process, which is environmentally and economically helpful, for thermal bonding. The problem of surface treatment of the olefinic resin layer and the deformation and breaking in the production process can be prevented.

And it can be omitted in the production line, such as door valve weather strip and glass run, the electrostatic mosquito drier, dryer, washing machine, it is an invention having many advantages economically.

Claims (4)

In concealing and protecting the interior of the door of the vehicle, and forming a door belt weather strip for guiding the lifting and lowering of the door glass and a flocking member attached to the elastic body of the glass run, Bond layers which are applied from the upper and lower with a fabric layer in the center; An olefin resin layer attached to one side of the bond layer and attached to the elastic body; The flocking member of the door belt weather strip and glass run of the vehicle, characterized in that the laminated structure including a flocking layer which is implanted in the bond layer opposite the olefin resin layer and in contact with the door glass. 2. The flocking member of a door runway weather strip and glass run of an automobile according to claim 1, characterized in that the fabric layer is made of a weft and warp weave of nylon or polyester material. 2. The flocking member of the door runway weather strip and glass run of an automobile according to claim 1, wherein the flocking layer is planted with a nylon pile. 2. The flocking member of a door runway weather strip and glass run of an automobile according to claim 1, wherein the olefinic resin layer is formed of a PP copolymer or a PP terpolymer.