KR20210112648A - Vehicle interior part comprising skin material vacuum scution structure - Google Patents

Abstract

A vehicle interior material including a skin material adsorption structure according to one embodiment of the present invention comprises: a suction hole which passes through a main body, wherein a gas passes therethrough; and a guide unit positioned on the main body, and connecting the suction hole and a part of the main body, where the suction hole is not formed. The guide unit may have a depth smaller than thickness of the main body, and may be communicatively connected to one end portion of the suction hole. An objective of the present invention is to provide the vehicle interior material which prevents a void phenomenon in which the skin material floats on the surface of the main body in advance.

Description

Interior material for vehicle including skin material adsorption structure {VEHICLE INTERIOR PART COMPRISING SKIN MATERIAL VACUUM SCUTION STRUCTURE}

The present invention relates to an interior material for a vehicle including a skin material adsorption structure, and more particularly, to an interior material for a vehicle in which a void phenomenon occurring between a substrate and a skin material after an IMG (In Mold Graining) molding process is improved. .

In general, the surface of various substrates used as interior materials for vehicles, such as dashboard, instrument panel, floor console, or arm rest, provides a luxurious image to the interior of the vehicle. At the same time, various skin materials are being applied to provide a more comfortable atmosphere to the occupant by giving a soft touch to the part where the occupant's physical contact is expected.

Various known methods can be used for the working method of applying the skin material to the substrate, but recently, an IMG molding method using a vacuum suction mold is used to increase the adhesion between the substrate and the skin material and improve the convenience of work. .

For reference, FIG. 1 conceptually illustrates a process of bonding the skin material to the surface of the substrate by the IMG molding method.

A brief description of the IMG molding method with reference to FIG. 1 is as follows.

First, the molded substrate may be seated on the lower mold. For reference, a plurality of suction holes (not shown) are formed in the molded substrate. The suction hole may be a gas passage used to adsorb the skin material placed on the surface of the substrate in a vacuum adsorption process to be described later.

Then, the heated skin material is placed on the surface of the substrate seated on the lower mold, and then the upper mold is moved to be molded with the lower mold. Then, the skin material may be bonded while being compressed with the surface of the substrate.

Then, a vacuum adsorption process in which the skin material is more closely adhered to the surface of the substrate by sucking air from the lower mold side may be performed.

When the above work process is performed, an interior material for a vehicle composed of a base material and a skin material may be manufactured.

However, when a plurality of suction holes formed in the substrate are not evenly distributed over the entire surface of the substrate, there is a problem in that the portion of the skin material corresponding to the position where the suction holes are not distributed is not bonded to the surface of the substrate and floats.

On the other hand, in the bottom of the substrate, various brackets may be molded or a shock absorbing structure may be molded in order to be coupled to a vehicle. In order to form such a structure at the bottom of the substrate, a molding die provided with a sliding core is required, but a suction hole cannot be formed in the operation section of the sliding core.

Therefore, when the suction holes are not evenly distributed over the entire surface of the substrate, there is a problem in that a void phenomenon occurs in which the skin material floats on the surface of the substrate, thereby increasing the defect rate of the product.

Korean Patent Registration No. 10-1587536

The present invention is to solve the above problems, and by using a guide part communicating with the suction hole, even if the suction hole is not distributed over the entire surface of the body, a vehicle interior material that prevents the void phenomenon in which the skin material floats on the surface of the body in advance It is intended to provide

In addition, the present invention primarily sucks the gas between the surface of the body and the skin material through the suction hole, and secondarily sucks the gas between the surface of the body where the suction hole is not formed and the skin material through the guide part, An object of the present invention is to provide a high-quality interior material for a vehicle by vacuum adsorbing the ash in a more closely adhered state to the surface of the body.

Another object of the present invention is to provide an interior material for a vehicle that can replace a separate operation for treating a void phenomenon occurring on the surface of the body.

A vehicle interior material including a skin material adsorption structure according to an embodiment of the present invention penetrates through the body, is located in the suction hole and the body through which the gas passes, and a guide connecting the suction hole and the portion of the body in which the suction hole is not formed It includes a portion, and the guide portion has a depth smaller than the thickness of the body, and may be communicatively connected to one end of the suction hole.

The guide portion may correspond to the operating range of the sliding core. The suction hole may be provided in plurality with a predetermined pattern on the body, and the guide unit may extend to a position where the suction hole is not provided in a predetermined pattern. It may further include an inlet that is connected in communication with one end of the guide part, is concave in the inner direction of the body, and through which gas is introduced.

One side of the guide part is connected to the suction hole and the other side of the guide part is connected to the inlet part, and when vacuum pressure is applied to the suction hole, the gas located in the inlet part may be guided to the suction hole. A width of the guide portion may be smaller than a diameter of the inlet portion. The suction hole may be connected to a vacuum unit for applying a vacuum pressure, and when vacuum pressure is applied to the suction hole, a vacuum suction force for bringing the skin material into contact with one side of the body may be applied.

The interior material for a vehicle including the skin material adsorption structure according to the present invention can reduce the defect rate of the product by preventing the void phenomenon in which the skin material floats on the surface of the body in advance.

In addition, the interior material for a vehicle including the skin material adsorption structure according to the present invention efficiently suctions gas between the skin material and a portion of the body where the suction hole is not formed, so that the skin material is adsorbed and fixed in a state in which the skin material is completely in close contact with the surface of the body. can

In addition, the interior material for a vehicle including the skin material adsorption structure according to the present invention can provide convenience and improve productivity by omitting a separate operation for treating the void phenomenon.

1 is a view showing a general IMG molding method.
2 is a perspective view schematically illustrating an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention.
3 is a plan view illustrating a plan view of a body of an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention.
4 is a perspective view illustrating a part of a body of an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention.
5 and 6 are cross-sectional views illustrating a state in which a skin material is adsorbed to a body of an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6 . In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted so as not to obscure the gist of the present invention.

1 is a view showing a general IMG molding method, FIG. 2 is a perspective view schematically showing an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention It is a plan view showing a plan view of a main body of an interior material for a vehicle including a skin material adsorption structure, and FIG. 4 is a perspective view showing a part of a body of an interior material for a vehicle including a skin material absorption structure according to an embodiment of the present invention, FIGS. 5 and 6 is a cross-sectional view illustrating a state in which a skin material is seated on a body of an interior material for a vehicle including a skin material adsorption structure according to an embodiment of the present invention.

Hereinafter, the structures of the main body 10 and the skin material 20 will be described in more detail with reference to FIGS. 2 to 4 .

As shown in FIG. 2 , the interior material 1 for a vehicle including a skin material adsorption structure according to an embodiment of the present invention may include a body 10 and a skin material 20 .

The body 10 may be a vehicle dashboard, an instrument panel, a floor console, or an armrest, and may be a vehicle core manufactured by various molding methods. The body 10 may include, but is not limited to, polypropylene (PP), polypropylene felt (Polypropylene Felt), polypropylene board (Polypropylene Board), resin felt (Resin Felt), etc. as a hard substrate. .

The skin material 20 may be positioned in contact with one side of the body 10 . The skin material 20 may have a cross-sectional area greater than the cross-sectional area of the upper surface of the body 10 . In this case, the skin material 20 may be positioned to cover the upper surface of the main body 10 and surround the side surface of the main body 10 . The skin material 20 has the same area as the cross-sectional area of the upper surface of the main body 10 and may be adhered to the upper portion of the main body 10 .

The skin material 20 is a non-woven fabric, polyvinyl chloride (PVC), thermoplastic olefin (Thermo Plastic Olefin, TPO) on the back of the skin paper composed of PE Foam, PP Foam, PP Foam (PU Foam) may be attached to the fabric, but is not limited thereto.

As shown in the enlarged circle of FIG. 2 , the body 10 may include a suction hole 11 , a guide part 12 , and an inlet part 13 . The suction hole 11 may be positioned in the body 10 and may have a hole shape penetrating the body 10 in the z-axis direction. A plurality of suction holes 11 may be spaced apart from each other. Gas may pass through the suction hole 11 .

The suction hole 11 may be connected to a vacuum unit (not shown) such as a pump or a tank that applies vacuum pressure. The suction hole 11 may apply a vacuum suction force for adsorbing and fixing the skin material 20 on the upper portion of the main body 10 by the vacuum pressure applied from the vacuum unit.

The guide part 12 may be located in the main body 10 and be connected to the suction hole 11 . One side of the guide part 12 is communicatively connected to the suction hole 11 , and the other side of the guide part 12 may be connected to a portion A of the body 10 in which the suction hole 11 is not formed. .

The guide part 12 may have a depth smaller than the thickness of the body 10 in the z-axis direction and may have a concave shape in the inner direction of the body 10 . The guide part 12 may guide the gas located in the guide part 12 in the direction of the suction hole 11 .

The inlet 13 may be connected to an end of the guide 12 . In this case, one end of the guide part 12 may be communicatively connected to the suction hole 11 and the other end may be communicatively connected to the inlet 13 . The inlet 13 may guide the gas located in the inlet 13 in the direction of the guide 12 or the suction hole 11 .

As shown in FIG. 3 , the body 10 may include a portion A in which the suction hole 11 is not formed. The bottom of the main body 10 may include various brackets or shock absorbing structures. In order to form such a structure, the main body 10 is manufactured using a mold provided with a sliding core. However, in this case, the suction hole 11 cannot be formed in the main body 10 in the section in which the sliding core operates. In other words, the portion A in which the suction hole 11 is not formed is a section in which the sliding core operates, and may be a portion corresponding to the operating range of the sliding core.

The suction hole 11 has a predetermined pattern 14 in the body 10 and may be provided in plurality. The pattern 14 of the suction hole 11 may be formed in a row along the x-axis, the y-axis, and the z-axis, or may be formed along a circle, a rectangle, a diagonal, etc., but is not limited thereto.

When the suction hole 11 has the pattern 14 and is formed in the body 10 , the guide part 12 may extend from a position where the pattern 14 is provided to a position where the pattern 14 is not provided. That is, one side of the guide part 12 may be connected to the pattern 14 and the other side may be connected to a portion where the pattern 14 is not provided.

As shown in FIG. 4 , a suction hole 11 , a guide part 12 communicating with the suction hole 11 , and an inlet part 13 communicating with the guide part 12 may be formed in the body 10 . . When vacuum pressure is applied to the suction hole 11 , the gas located in the guide part 12 and the inlet part 13 may move to the suction hole 11 .

The suction hole 11 may have a cylindrical shape penetrating the body 10 . The diameter d1 of the suction hole 11 may be larger than the diameter d3 of the inlet 13 . In this case, since the suction hole 11 may be formed with a relatively large diameter d1, the internal gas between the skin material 20 and the body 10 may be more smoothly vacuum-sucked. In addition, since the inlet 13 may be formed with a relatively small diameter d3, it is possible to prevent unnecessary marks on the skin material 60 in the vacuum suction process in advance.

The guide part 12 may have a rectangular columnar shape concave in the inner direction of the main body 10 . Each of the corners of the guide unit 12 may be rounded. Since the corners of the square pillars of the guide part 12 are rounded, the gas located in the guide part 12 can be smoothly guided in the direction of the suction hole 11 .

The guide part 12 may have both sides facing each other in a quadrangular prism shape inclined at a preset angle. That is, the guide part 12 may have a shape in which the width d2 becomes smaller in the inner direction of the main body 10 . In this case, since the gas of the guide part 12 can be concentrated in the inner direction of the main body 10 on both sides of the inclined portions, the efficiency of inducing the gas in the direction of the suction hole 11 can be increased.

The inlet 13 is located at the end of the guide part 12 and may have a cylindrical shape concave in the inner direction of the main body 10 . The inlet 13 may guide the gas introduced into the inlet 13 in the direction of the guide 12 . The inlet 13 may collect gas between the body 10 and the skin material 20 .

The diameter d3 of the inlet part 13 may be greater than the width d2 of the guide part 12 . In this case, when the gas of the inlet part 13 is guided to the guide part 12, the speed of the gas moving by the narrowed length may be increased. Accordingly, a vacuum suction force for adsorbing and fixing the skin material 20 on the upper portion of the main body 10 may be increased, and the efficiency of adsorption of the skin material 20 may be increased.

A diameter d1 of the suction hole 11 and a diameter d3 of the inlet 13 may be 1.3 mm to 2.5 mm. Preferably, the diameter d1 of the suction hole 11 and the diameter d3 of the inlet 13 may be 1.8 mm to 2.0 mm. When the diameter d1 of the suction hole 11 and the diameter d3 of the inlet 13 are smaller than 1.3 mm, the processing cost may increase, and when it is larger than 2.5 mm, unnecessary marks are generated on the skin material 60 Or, since the hole marks may be exposed on the exterior of the interior material, it is preferable to adjust the above-mentioned range. The width d2 of the guide portion 12 may be 0.7 mm to 1.3 mm, and the depth in the z-axis direction may be 1.2 mm to 1.8 mm. In this case, the efficiency in which the guide part 12 guides the gas of the inlet part 13 toward the suction hole 11 can be maximized.

Hereinafter, a state in which the skin material 20 is adsorbed will be described in more detail with reference to FIGS. 5 and 6 .

As shown in FIG. 5 , when vacuum pressure is applied to the suction hole 11 while the skin material 20 is seated on the upper portion of the body 10 , the gas between the body 10 and the skin material 20 . moves to the suction hole 11 , and the skin material 20 may be adsorbed and fixed to the body 10 flat. However, since the gas (Air) may still exist between the skin materials 20 in the portion A of the body 10 in which the suction hole 11 is not formed, the skin material 20 is not formed on the surface of the body 10 . There is a high possibility that the phenomenon of excitation voids will occur.

As shown in FIG. 6 , the interior material 1 for a vehicle including the skin material adsorption structure according to an embodiment of the present invention includes a portion A in which the suction hole 11 is not formed through the guide portion 12 and The gas between the skin materials 20 may be guided to the suction hole 11 . Accordingly, in the interior material 1 for a vehicle including the skin material adsorption structure, the gas between the body 10 and the skin material 20 over a larger area even if the suction hole 11 is not formed entirely in the body 10 . The main body 10 and the skin material 20 may be in close contact with the body 10 by moving it to the suction hole 11 and sucking it.

In summary, in the vehicle interior material 1 including the skin material adsorption structure, the portion where the suction hole 11 is formed primarily sucks the gas between the body 10 and the skin material 20 through the suction hole 11 . In the area (A) where the suction hole (12) is not formed, the gas between the area (A) and the skin material (20) passes through the guide part (12) or the inlet part (13) to the suction hole (11) It can induce secondary inhalation. Accordingly, it is possible to prevent the skin material 20 from floating on the surface of the body 10 in advance, and since the skin material 20 is in close contact with the body 10 and vacuum suction can be performed in a flat state, the vehicle The quality of the interior material 1 can be improved.

Although the preferred embodiment of the present invention has been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

10: body
11: suction hole
12: guide part
13: inlet
14: pattern
20: skin material

Claims (7)

a suction hole through the body and through which the gas passes; and
It is located on the main body and includes a guide part connecting the suction hole and a part of the body where the suction hole is not formed,
The guide part has a depth smaller than the thickness of the main body, and the interior material for a vehicle including a skin material adsorption structure, characterized in that it is connected in communication with one end of the suction hole. According to claim 1,
The guide portion for a vehicle interior including a skin material adsorption structure, characterized in that corresponding to the operating range of the sliding core. 3. The method of claim 2,
The suction hole is provided in plurality with a predetermined pattern on the body,
The guide part for a vehicle interior including a skin material adsorption structure, characterized in that the suction hole is extended to a position not provided in a predetermined pattern. 4. The method of claim 3,
The interior material for a vehicle including a skin material adsorption structure connected in communication with one end of the guide part, the skin material adsorption structure further comprising an inlet part concave in the inner direction of the main body and through which gas is introduced. 5. The method of claim 4,
One side of the guide part is connected to the suction hole and the other side of the guide part is connected to the inlet part, and when a vacuum pressure is applied to the suction hole, the skin material adsorption for guiding the gas located in the inlet part to the suction hole An interior material for a vehicle including a structure. 6. The method of claim 5,
A vehicle interior material including a skin material adsorption structure having a width of the guide portion smaller than a diameter of the inlet portion. 7. The method of any one of claims 1 or 6,
The suction hole is connected to a vacuum unit that applies a vacuum pressure, and when vacuum pressure is applied to the suction hole, a skin material adsorption structure that applies a vacuum suction force to bring the skin material into contact with one side of the body. Vehicle interior materials.

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