KR20230001633U - Structure of dore trim of vehicle and its modlding product - Google Patents

Abstract

The present invention relates to a mold structure for molding a door trim seal structure for an automobile, wherein the mold structure for a mold for a car door trim seal structure includes: a door trim in which a receiving part is formed in one area to form a space inwardly by being depressed in an outward direction of a door; It is fixed to one surface of the door trim and covers the door trim, and includes a door trim cover made of an extensible material formed with at least one protrusion and at least one recess corresponding to the protrusion, wherein the door trim cover is Covering one or more protruding parts through the protruding part and covering one or more inserted parts of the door trim through the insertion part, sealing and fixing to the door trim through an adhesive, and the cover being made of a thermoplastic resin. to be characterized

Description

Automobile door trim seal structure and its molded product {STRUCTURE OF DORE TRIM OF VEHICLE AND ITS MODLDING PRODUCT}

The present invention relates to a door trim seal structure and a molded product thereof, and more particularly, by forming a vacuum molded product to fit the curved three-dimensional shape of the door trim and sealing it with an adhesive to improve the curved shape. Since a molded product manufactured in the same shape as the door trim is created, sealing is excellent when the door trim is covered through this, and since various shapes are attached and covered through adhesive at once, the defect rate for door trim sealing is also reduced. The present invention relates to a new type of automotive door trim seal structure and a molded product thereof to improve productivity and improve vehicle product quality.

A door trim is a part that covers the lock, speaker, and window device inside a car door (door), and a door trim seal is a speaker device between the outer and inner surfaces of a car door It collectively refers to a sealing mechanism that prevents rainwater or car wash water from entering the operating device and the electrical wiring connecting them.

Referring to the prior art in this field, the current door trim cover method uses a method of cutting soft PVC to fit the door shape, then applying adhesive to the door and bonding it, but the vehicle door trim speaker, window operating device, etc. Due to this, the shape has many curves, so it is difficult to seal it to protect it from rainwater or moisture with a flat material. Therefore, there is a problem in that it may leak or be exposed to moisture when it rains or when washing a car.

On the other hand, if you look at the vacuum forming mold production, it is a technology for cutting a three-dimensional curved product with a 1-dimensional Thomson blade, where the Thomson blade is a cutting shape desired for a wooden wooden frame. It refers to a structure that cuts paper, leather, cloth, rubber, plastic film, sponge, etc. by injecting and fixing the blade structure, and is characterized by a short production period, precision, and low production cost. However, since it has a one-dimensional flat structure, it has a disadvantage that it cannot be cut in 2 or 3 dimensional shapes.

[Prior art literature]

Republic of Korea Utility Model Registration No. 20-0125167 (Registration on June 19, 1998) (Name of Invention: Fixing structure of door trim seat cover)

The present invention was made to solve the problems of the prior art, and molded into a vacuum molded product to fit the curved three-dimensional shape of the door trim and sealed with an adhesive to improve the door trim in a curved shape. Since a molded product manufactured in the same shape is created, sealing is excellent when the door trim is covered through this, and since various shapes are attached and covered through adhesive at once, the defect rate for door trim sealing is also reduced, and the productivity of the vehicle is improved. Its purpose is to provide a new type of automobile door trim seal structure molding mold structure and its molded product so that the vehicle product quality is improved.

According to a preferred embodiment of the present invention for achieving the above object,

In the automobile door trim seal structure molding mold structure,

a door trim having a receiving part formed in one area to form a space inwardly by being depressed in an outward direction of the door;

A door trim cover fixed to one surface of the door trim and covering the door trim, wherein the door trim cover is made of an extensible material formed with at least one protrusion and an insertion part,

The cover covers one or more protruding parts of the door trim through the protruding part and covers one or more inserted parts of the door trim through the insertion part, and is sealed and fixed to the door trim through an adhesive,

The cover is characterized in that the material of the thermoplastic resin (Thermoplastic),

The door trim seal structure is molded by a vacuum forming mold, and is characterized in that it is in the form of a structure that matches the outer frame of the mold to the structure of the curved cutting surface of the product.

In addition, the cut surface of the plug mold is characterized in that the shape having a trapezoidal shape, the height of the cut surface is 50mm or less.

In addition, a shape having four sides is limited to a part of the plug mold, and at this time, A, B, and C excluding the base are cut surfaces, and if the base is L, the value obtained by multiplying L by 1.5 is the sum of A, B, and C. It is equal to or greater than the value, that is, it is characterized in that it is a range in which the condition of Lx1.5≥A+B+C is satisfied.

In addition, when the cut shape of the cavity mold has a shape of an arc (⌒), it is characterized in that the height (H) of the cut surface of the arc shape is 50 mm or less.

In addition, when the cut shape of the cavity mold has a shape of an arc (⌒), a circle on an extension line of the arc is assumed, the radius (r) of the circle and the bottom surface (L) of the cut surface of the molded product are assumed, and the cut bottom surface of the arc is assumed. Assuming a radius that is an extension of the left and right lines connecting the point where the arc and the arc meet, and displaying the internal angle (θ),

When the cutting shape of the cavity mold has the shape of an arc (⌒), under the condition that the height (H) of the arc is 50 mm or less, the length of the cutting bottom (L) of the molded product does not exceed twice the length of the radius (r), and it is assumed For one angle (θ), the minimum value is 40° and the maximum value is 180°, where the ratio of the height (H) of the molded product divided by the cutting bottom (L) of the molded product is equal to or greater than 9% for the minimum value. , and set the maximum value to 50% or less, that is, when H≤50mm, L≤2r, and the left and right radial interior angles connecting the point where the cutting bottom of the molded product and the arc meet are 40°≤ θ≤180 It is characterized in that it is within the range of °.

According to the automotive door trim seal structure and molded product according to the present invention described above, in the case of a product with a molding depth as low as 10 mm or less, in terms of the actual molded product structure, the application effect of the present invention may not be large, but even in the case of a circular arc Even if the structure of a molded product having an irregular but circular arc shape rather than a circle shape, if the maximum height of the molded product does not exceed 50 mm, the molded product can be designed and the desired molded product can be manufactured.

According to the present invention, there is an effect that can be improved by forming a vacuum-formed product to fit the curved three-dimensional shape of the door trim and sealing it with an adhesive.

First, since the same shape as the door trim comes out in a curved shape, there is an effect of excellent sealing.

Second, since the shape is attached at once, the defect rate is reduced, productivity is excellent, and product quality is improved.

1 is a schematic external perspective view of a door trim for a vehicle installed with a molded article produced by a mold structure for forming a vehicle door trim seal structure according to a preferred embodiment of the present invention.
2 is a molded product or molding mold 12-1 for the design of a mold of a structure having a trapezoidal cut surface in the mold structure for molding a vehicle door trim seal structure according to the present invention, and the inclined surfaces A and C and the upper part of the cut surface (Ceiling part) (10-1), the length of the ceiling part (B), the height to the ceiling part (H), and the length from the start point to the end of the slope (L) are shown in pictures for easy understanding.
3 is an extension line of an arc 10-2 and an arc in a molded article or molding mold 12-2 for mold design of a structure having an arc-shaped cutting surface in the mold structure for molding a vehicle door trim seal structure according to the present invention. The radius of the circle (r), the height from the base to the arc (H), and the point where each radius-shaped straight line connecting the starting point and ending point of the arc from the center of the circle, which is an extension of the arc, to the base of the arc intersects. It is an easy-to-understand diagram showing the internal angle (θ) from the extension line and the straight-line distance (H) from the base to the start and end points of the arc.
4 is a view showing an example of a plug mold, which is a pair of molding molds in which a cut surface having a three-dimensional curved structure is exposed in a vehicle door trim seal structure according to the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail. In order to facilitate overall understanding in describing the present invention, the same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

* Figure 1 is a schematic external perspective view of a door trim for a vehicle installed with a molded product produced by a mold structure for a vehicle door trim seal structure according to a preferred embodiment of the present invention, Figure 2 is a vehicle door trim seal structure according to the present invention In the molding mold structure, for the design of the mold of a structure having a trapezoidal cut surface, the inclined planes (A, C) and the upper part (ceiling part) (10-1) of the cut surface in the molded product or molding mold (12-1), the ceiling part It is a diagram showing the length (B), the height to the ceiling (H), and the length (L) from the start point to the end of the slope in an easy-to-understand manner. In the structure, for mold design of a structure having an arc-shaped cut surface, the arc 10-2 in the molded article or molding mold 12-2, the radius of the extension line of the arc (r), and the height from the bottom to the arc ( H), from the center of the circle, which is the extension of the arc, to the starting point and ending point of the arc at the base of the arc, the internal angle (θ) at the extension line where each radius-shaped straight line intersects, the start and end of the arc from the base It is a drawing showing the straight line distance (H) to the end point in an easy-to-understand manner. 4 is a view showing an example of a plug mold, which is a pair of molding molds in which a cut surface having a three-dimensional curved structure is exposed in a vehicle door trim seal structure according to the present invention.

Referring to FIG. 1, the automotive door trim seal structure molding mold structure and the molded product according to a preferred embodiment of the present invention are molded into a vacuum molded product to fit the curved three-dimensional shape of the door trim and sealed with an adhesive. By improving the door trim in a curved shape, the seal is excellent because the shape is identical to the door trim, and since the shape is attached at once, the defect rate is reduced, productivity is excellent, and product quality is improved.

That is, the molded product 10 is attached and installed to the door trim 20 while being covered by an adhesive. 19) and an insertion portion 18. In FIG. 1, the protrusions 12, 13, 14, 15, 16, 17, and 19 have different shapes, but as described in FIGS. 2 and 3, the height of the protrusion and the height of the insertion are formed to have a specific range. And, other parts are linear protrusions 12, 13, 19, wire avoidance protrusions 14, parts protrusions 15, 16, central protrusions 17, and inserts ( 18) can be distinguished.

As an improved working method in the present invention, improvement is made by forming a vacuum molded product to fit the curved three-dimensional shape of the door trim and sealing it with an adhesive.

First, it has excellent sealing because it has the same shape as the door trim in a curved shape.

Second, since the shape is attached at once, the defect rate is reduced, productivity is excellent, and product quality is improved.

Matters concerning the production of vacuum forming molds

The mold manufacturing method to be improved in the present invention is examined.

The vacuum forming mold consists of a top and bottom mold structure of a plug (or protrusion) mold with an extrusion molding structure and a cavity (or insert) mold with an internal space molding structure, and the outer frame of the mold is the product It is in the form of a structure that matches the structure of the curved cutting surface of (see Fig. 4).

Therefore, when forming a three-dimensional curved surface, a mold is designed and manufactured to have the structure of the shape inside the outer periphery of the upper and lower molds, and the product is molded. In this case, the desired cutting surface can be cut only when the knife structure for cutting it is designed and manufactured to have the same shape as the curved three-dimensional structure.

Rarely, there are examples of making and using a three-dimensional cutting blade structure. However, the production period of the mold is long and the production cost is high, and the press machine that cuts it must have compatibility such as cutting force and mold fastening structure so that the mold can be used, and safety accidents can be prevented only when a device that automatically takes out the molded product after cutting is installed. Above all, the product development period is long, and it is not suitable as a tool for forming and cutting products with various structures.

However, when designing and manufacturing vacuum forming molds, if the upper and lower molds are made in the same curved shape as the structure to be cut in three dimensions, the side of the molded product has a three-dimensional structure rather than a flat surface. You can make molded products that can be cut with the Thompson knife of the structure. (Thomson refers to the work of making a wooden mold (planting a metal blade in a tree as a frame that makes the shape of a box) and pressing the paper. Since this is a well-known part, a detailed description will be omitted).

Not all vacuum-formed structures can be manufactured with the above molding mold, that is, only when the structure is in the form of the condition as shown in FIGS. 2 and 3, the three-dimensional vacuum-formed structure can be cut with a flat Thomson knife. This is the result of protruding through structural design and repetitive work, which shortens the development period of the product, lowers the manufacturing cost, excellent dimensional stability of the cut product, and increases the production efficiency, resulting in various vacuum forming products. It has the advantage of providing a mold and cutting (cutting) knife structure for

Referring to FIG. 2, in the case of the shape of the molded product 10-1, the cut surface 12-1 (consisting of A, B, and C) of the molded product has a trapezoidal shape, and the desirable height of the molded product should not exceed 50 mm. do. In general, it is set within a range that satisfies the space inside the car door trim, but the defect rate tends to increase when the height exceeds 50 mm even as a technical limit to be designed and manufactured in the present invention.

In addition, if the cut surfaces of the molded product are A, B, and C, and the base is L, then the value obtained by multiplying L by 1.5 must be equal to or greater than the sum of A, B, and C. That is, within the range where the condition of Lx1.5≥A+B+C is satisfied, the molding mold of the molded article must be manufactured and the blade mold must be manufactured. This is to calculate the number of cases, create an actual model, directly form and cut, and derive the range and conditions as above based on this.

In addition, there is a case where the molded product and its cutting shape have a circular arc (⌒) shape as shown in FIG.

Even in the case of the arc-shaped molded article 10-2, it is set as a prerequisite that its height (H) is 50 mm or less. In this case, a circle 12-2 on the extension line of the arc is assumed, and the radius (r) of the circle Assuming the bottom (L) of the cut surface (12-2) of the molded product as shown in FIG. 3, and the radius, which is an extension of each of the left and right lines connecting the point where the cut bottom of the circular arc and the arc are in contact, as shown in FIG. (θ) is indicated.

As a result of examining the cutting structure of the molded article as described above and implementing it with a real model and mold, it was possible to produce the mold, cutting knife, and molded article of the present invention within a certain range. That is, under the condition that the height (H) of the molded product is 50 mm or less, the length of the cutting bottom (L) of the molded product cannot exceed twice the length of the radius (r), and the angle (θ) assumed in FIG. The maximum value is 180°, where the ratio of the height (H) of the molded product divided by the cut bottom (L) of the molded product is set to a minimum value of 9% or more and a maximum value of 50% or less. I came to design and devise the mold structure and molded product. That is, when H≤50mm, L≤2r, and the inside angle of the left and right radii connecting the point where the cutting bottom of the molded product and the circular arc meet, a three-dimensional molded product for automotive door trim seals within the range of 40°≤ θ≤180° It is a technology for designing a mold that manufactures and cutting it with a one-dimensional Thomson knife and manufacturing the molded product.

In terms of the structure of the actual molded product, it can be seen that the application effect of the present invention is not large in the case of products with a low molding depth of 10 mm or less. Even in the case of a molded product structure having an irregular but arc shape, if the maximum height of the molded product does not exceed 50 mm, the molded product can be designed and the desired molded product can be manufactured.

Referring to FIG. 4, it can be seen that a curved three-dimensional cutting surface (reference numeral 112) is formed on the molding mold 100 by the lower mold 110, that is, the plug mold. Reference numeral 112 is an exemplary form of the protrusion 12 shown in FIG. 1, and the molded product 10 shown in FIG. 1 is a Thomson blade operation on the molded product completed through the lower mold 110 of the mold 100. The result obtained through will be, for example, the molded product 10 of FIG. 1 (the molded product can be used for door trim seal molding). The upper mold 110 assumes the case of the protruding part 12, but in order to mold like the recessed part 18 in FIG. 1, another mold (for example, an upper mold, that is, a cavity mold (not shown) It may be necessary to manufacture a molded article by installing the lower mold 110 after installing the lower mold 110 together.

In addition, the material of the molded article is composed of a material of thermoplastic resin (Thermoplastic).

As described above, the optimal embodiment has been disclosed in the drawings and specifications. Although specific terms have been used herein, they are only used for the purpose of describing the present invention and are not used to limit the scope of the present invention described in the meaning or claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

10,10-1,10-2: Molded products for door trim seals
11,11-1: bend
12,13, 14, 15, 16, 17,19: projections
18: insertion part
20: door trim
100: molding mold

Claims (5)

In the vehicle door trim seal structure,
a door trim in which a receiving part is formed in one area to form a space inwardly by being depressed in an outward direction of the door;
A door trim cover fixed to one surface of the door trim and covering the door trim, wherein the door trim cover serves as a door trim seal, a sealing mechanism, and is formed of one or more protrusions and inserts formed of an extensible material,
The door trim cover covers one or more protruding parts of the door trim through the protruding part and covers one or more inserted parts of the door trim through the insertion part, and is sealed and fixed to the door trim through an adhesive,
The cover is characterized in that the material of the thermoplastic resin (Thermoplastic),
The door trim seal structure is formed by a vacuum forming mold, and the outer frame of the mold is matched with the structure of the curved cutting surface of the product, The automotive door trim seal structure according to claim 1, wherein the cut surface of the plug mold has a trapezoidal shape, and the height of the cut surface is 50 mm or less. The method of claim 1, wherein a shape having four sides is limited to a part of the plug mold, and at this time, A, B, and C excluding the base are cut surfaces, and if the base is L, the value obtained by multiplying L by 1.5 is A, B , C, that is, a vehicle door trim seal structure, characterized in that the range in which the condition of Lx1.5 ≥ A + B + C is satisfied. The automotive door trim seal structure according to claim 1, wherein, when the cavity mold has a shape of an arc (⌒), the height (H) of the arc-shaped cut surface is 50 mm or less. The method of claim 1, when the cutting shape of the cavity mold has a circular arc (⌒) shape, a circle on an extension line of the circular arc is assumed, and the radius (r) of the circle and the bottom surface (L) of the cutting surface of the molded product are assumed, and the circular arc Assuming the radius, which is the extension of the left and right lines connecting the point where the cutting base and the arc meet, and displaying the angle (θ) inside it,
When the cutting shape of the cavity mold has an arc (⌒) shape, under the condition that the height (H) of the arc is 50 mm or less, the length of the cutting bottom (L) of the molded article does not exceed twice the length of the radius (r), The angle (θ) has a minimum value of 40° and a maximum value of 180°, where the ratio of the height (H) of the molded product divided by the cutting bottom (L) of the molded product is equal to or greater than 9%. and set the maximum value to 50% or less, that is, when H≤50mm, L≤2r, and the left and right radius internal angles connecting the point where the cutting bottom of the molded product and the arc meet are 40°≤ θ≤180° Automotive door trim seal structure, characterized in that within the phosphorus range.