JP2021115775A - Vacuum molded interior component - Google Patents

Abstract

To provide a vacuum molded interior component capable of improving an appearance quality by making a sink mark of a skin material inconspicuous at a portion where a cavity rib part of a base material is formed.SOLUTION: A vacuum molded interior component 10 includes a base material 2 to which a skin material 1 composed of a skin layer 11 and a cushion layer 12 is attached to a surface 21, and a plurality of cavity rib part 23 formed in a thick part 22 of the base material with a concave groove 24 having substantially a same width separated from each other. A thinned part 25N having a predetermined width w1 on a back surface side formed to be slightly recessed from a front surface 261 of a general part 26 of the base material adjacent to an outer peripheral part of the cavity rib, is provided on an outer peripheral part 25 of the cavity rib that surrounds the cavity rib part and the concave groove of the base material. Further, an upper end surface 231 of the cavity rib part is formed at substantially a same height as the surface of the general part.SELECTED DRAWING: Figure 7

Description

The present invention relates to a vacuum formed interior part, and more specifically, a plurality of protruding ribs (hereinafter, referred to as “cavity rib portions”) are formed on the surface of a thick portion of a base material to which a skin material is adhered with a concave groove. Regarding vacuum formed interior parts.

For example, in the interior parts of a vehicle, a vacuum-molded interior part formed by attaching a skin material having a soft cushion layer to the surface of a base material shaped into a predetermined shape by vacuum molding is adopted. There is. In this vacuum-formed interior component, a mounting seat for attaching another component to the back surface side of the base material may be formed so as to project to the back surface side of the base material. In that case, since the wall thickness of the base material is thicker than that of the general part at the place where the mounting seat is formed, sink marks are likely to occur on the surface of the base material during molding, and the skin material attached to the base material by the sink marks. The appearance quality was sometimes deteriorated.

Therefore, for example, Patent Document 1 discloses a technique for reducing surface sink marks in a thick portion of a base material. That is, in Patent Document 1, as shown in FIG. 8, in a vacuum-molded product in which a synthetic resin sheet 103 in which a skin layer 101 and a cushion layer 102 are bonded is integrated with a base material 104 by vacuum molding, the base material 104 is described. A vacuum-formed product 100 in which a plurality of protrusions (cavity rib portions) 105 having a tip substantially the same as the surface on which the synthetic resin sheet 103 is attached is provided on the thick portion 104a of the above with substantially the same width of the concave groove 106 is disclosed. Has been done. According to the vacuum-formed product 100, the sink marks generated on the surface of the base material 104 can be reduced by forming the protrusions (cavity rib portions) 105 on the base material 104 to the same thickness as the general part of the base material 104. ..

Japanese Unexamined Patent Publication No. 7-329178

However, the vacuum molded product 100 disclosed in Patent Document 1 has the following problems. That is, as shown in FIG. 9A, the synthetic resin sheet 103 is heated to a predetermined temperature, and the soft cushion layer 102 is adhered to the surface of the base material 104. Therefore, as shown in FIG. 9B, when the vacuum forming mold (not shown) is closed and the synthetic resin sheet 103 is pressed against the surface of the base material 104 while being vacuum-sucked to be adhered, a part 102a of the cushion layer 102a is formed. Will penetrate into the concave groove 106 of the base material 104. Further, as shown in FIG. 9C, when the synthetic resin sheet 103 is adhered to the surface of the base material 104 and cooled, the cushion layer 102 shrinks. At this time, a part 102a of the cushion layer 102 that has penetrated into the concave groove 106 of the base material 104 shrinks more than the cushion layer 102b adhered to the general portion of the base material 104. Further, as shown in FIG. 9D, when the vacuum forming mold was opened, a part 102a of the cushion layer 102 that had penetrated into the concave groove 106 of the base material 104 was adhered to the general part of the base material 104. Restoring force is weaker than that of the cushion layer 102b. Therefore, a sink mark portion HK in which the synthetic resin sheet (skin material) 103 appears to be partially recessed is formed at a portion where a plurality of protrusions (cavity rib portions) 105 are provided, and a general portion without protrusions (cavity rib portions) 105 is synthesized. There is a problem that the boundary line HKL between the resin sheet (skin material) 103 and the sink mark HK is conspicuous and the appearance is poor.

The present invention has been made to solve the above problems, and provides a vacuum-formed interior component capable of improving the appearance quality by making the sink marks of the skin material inconspicuous at the portion where the cavity rib portion of the base material is formed. The purpose is to do.

In order to solve the above problems, the vacuum formed interior parts according to the present invention have the following configurations.
(1) A vacuum-formed interior in which a base material composed of a skin layer and a cushion layer is provided on the surface, and a plurality of cavity rib portions are formed on a thick portion of the base material with a concave groove. It ’s a part,
The outer peripheral portion of the cavible rib that surrounds the cavible rib portion and the concave groove of the base material is formed by being slightly recessed on the back surface side from the front surface of the general portion of the base material adjacent to the outer peripheral portion of the cab rib by a predetermined width. It is characterized by having a meat stealing part.

In the present invention, the outer peripheral portion of the cavible rib that surrounds the cavible rib portion and the concave groove of the base material is formed by being slightly recessed on the back surface side from the front surface of the general portion of the base material adjacent to the outer peripheral portion of the cavible rib by a predetermined width. Since the meat-stealing part is provided, the thickness of the cushion layer attached to the surface of the meat-stealing part after restoration is adjusted to the cushion layer attached to the surface of the general part of the base material adjacent to the outer peripheral portion of the cavity rib. It can be made slightly smaller by the amount of the dent than the thickness after restoration of. On the other hand, since a part of the cushion layer invades the concave groove, the thickness of the cushion layer after restoration, which is attached to the place where the cavity rib portion is formed, is the thickness of the cushion layer attached to the surface of the meat stealing portion. It is smaller than the thickness after restoration.

Therefore, the boundary between the sink mark part where the skin material attached to the place where the cab rib part is formed looks partially dented and the skin material attached to the general part without the cab rib part is attached to the meat stealing part. It can be made into a gentle curved surface by the applied skin material and can be blurred. As a result, it is possible to make the sink marks of the skin material inconspicuous at the portion where the cavity rib portion of the base material is formed.

Therefore, according to the present invention, it is possible to provide a vacuum-formed interior component capable of improving the appearance quality by making the sink marks of the skin material inconspicuous at the portion where the cavity rib portion of the base material is formed.

(2) In the vacuum formed interior parts described in (1),
The meat stealing portion is characterized in that it is formed in a range separated by a predetermined distance from the design bending line of the base material.

In the present invention, since the meat stealing portion is formed within a range separated from the bending line on the design of the base material by a predetermined distance, the appearance of the skin material attached in the vicinity of the bending line on the design of the base material. It is possible to avoid the influence of the meat stealing part on the quality. On the other hand, in the vicinity of the bending line on the design of the base material, the boundary line of the sink mark portion of the skin material at the portion where the cavity rib portion of the base material is formed becomes less noticeable due to the bending line on the design. Therefore, the sink marks of the skin material are less noticeable while avoiding the influence of the meat stealing part at the place where the cavity rib part of the base material is formed on the skin material attached near the bending line in the design of the base material. Therefore, the appearance quality can be further improved.

(3) In the vacuum-molded interior parts described in (1) or (2).
The surface of the meat stealing portion is characterized in that a first ventilation groove that communicates the vacuum suction hole formed in the base material and the concave groove is formed.

In the present invention, since the first ventilation groove that communicates the vacuum suction hole formed in the base material and the concave groove is formed on the surface of the meat stealing portion, the inside of the concave groove sealed by the skin material is formed. When the temperature of the air rises and expands, the air can be discharged to the outside air through the first ventilation groove. Further, since the first ventilation groove is formed on the surface of the meat stealing portion, when the skin material is attached to the base material, the first ventilation groove is temporarily closed by the cushion layer pressed by the vacuum forming mold. It is possible to regulate the vacuum suction from the first ventilation groove to the concave groove and prevent the expansion of the cushion layer invading the concave groove. Therefore, it is possible to prevent the skin material from being deformed due to the expansion of the air in the concave groove while preventing the amount of sink marks of the skin material from increasing at the place where the cavity rib portion of the base material is formed.

(4) In the vacuum-formed interior parts described in (3),
A second ventilation groove is formed at the intersection of the cabrib portion with respect to the vertical wall portion rising from the inner edge of the outer peripheral portion of the cab rib to the back surface side of the base material to communicate the concave grooves with each other on the front surface side of the base material. It is characterized by being.

In the present invention, a second ventilation groove is formed at the intersection of the cabinet rib portion with respect to the vertical wall portion rising from the inner edge of the outer peripheral portion of the cabinet rib to the back surface side of the base material to communicate the concave grooves with each other on the front surface side of the base material. Therefore, when the temperature of the air in the plurality of concave grooves sealed by the skin material rises and expands, the air is collected in the specific concave groove via the second ventilation groove, and then the first 1 It can be discharged to the outside air through a ventilation groove. Therefore, the number of the first ventilation grooves formed in the meat stealing portion can be minimized with respect to the plurality of concave grooves, and the appearance deterioration of the skin material due to the first ventilation grooves can be suppressed.

(5) In the vacuum-formed interior component according to any one of (1) to (4).
The dented amount of the meat stealing portion is formed to have a size of about 1/20 to 1/10 times the thickness of the cushion layer before vacuum forming, and the width of the meat stealing portion is 50 to 50 to 1/10 of the dented amount. It is characterized in that it is formed to be about 150 times as large.

In the present invention, the dented amount of the meat stealing portion is formed to have a size of about 1/20 to 1/10 times the thickness of the cushion layer before vacuum forming, and the width of the meat stealing portion is 50 of the dented amount. Since it is formed to be about 150 times larger, the restored thickness of the cushion layer attached to the surface of the meat stealing portion is attached to the surface of the general part of the base material adjacent to the outer periphery of the cavity rib. The thickness of the cushion layer after restoration can be reduced by about 1/20 to 1/10 with a gentle inclination in proportion to the amount of dents.

Therefore, a clear boundary line is provided between the sink mark part where the skin material attached to the place where the cab rib part is formed looks partially dented and the skin material attached to the general part without the cab rib part. By eliminating it, the two can be connected by a gentler curved surface, and the sink marks of the skin material can be more inconspicuously blurred.

According to the present invention, it is possible to provide a vacuum-formed interior component capable of improving the appearance quality by making the sink marks of the skin material inconspicuous at the portion where the cavity rib portion of the base material is formed.

It is a schematic perspective view which shows the procedure of forming the instrument panel of an automobile which is one Example of the vacuum forming interior part which concerns on this Embodiment, (A) shows the skin material forming step which forms the skin material, B) shows a base material forming step for forming a base material, and (C) shows a vacuum forming step in which the skin material is attached to the base material by vacuum forming. It is a detailed perspective view of the part A shown in FIG. 1 (B). FIG. 2 is a cross-sectional view taken along the line CC shown in FIG. FIG. 2 is a cross-sectional view taken along the line DD shown in FIG. FIG. 2 is a cross-sectional view taken along the line EE shown in FIG. It is a detailed perspective view of the part B shown in FIG. 1 (B). 1A is a partial cross-sectional view of a vacuum formed interior part formed in the vacuum forming step shown in FIG. 1C, in which FIG. 1A shows a state before the skin material is attached to a base material, and FIG. The state after the material is attached to the surface of the base material is shown. In the cross-sectional view of the vacuum-formed product disclosed in Patent Document 1, (A) shows a cross-sectional view of a main part of the vacuum-molded product, and (B) shows an XX cross-sectional view shown in (A). FIG. 8 is a cross-sectional view showing a process of attaching a skin material to the surface of a thick portion of a base material by vacuum molding in the vacuum-molded product shown in FIG. (B) shows a state in which the vacuum forming mold is closed and the skin material is pressed against the base material, and (C) shows a state in which the skin material attached to the base material is cooled while being pressed. (D) shows a state in which the vacuum forming mold is opened and the cushion layer of the skin material is restored.

Next, the vacuum-formed interior parts according to the embodiment of the present invention will be described in detail with reference to the drawings. Specifically, after briefly explaining the molding procedure of the vacuum-formed interior parts, the portion where the cavity rib portion of the base material, which is a characteristic structure thereof, is formed will be described in detail. In addition, in this vacuum-formed interior part, the effect of making the sink marks of the skin material inconspicuous at the portion where the cavity rib portion of the base material is formed will be described.

<Molding procedure for this vacuum-formed interior part>
First, the molding procedure of the vacuum-molded interior parts will be briefly described with reference to FIG. FIG. 1 shows a schematic perspective view showing a procedure for molding an instrument panel of an automobile, which is an embodiment of a vacuum-formed interior component according to the present embodiment. FIG. 1 (A) shows a skin material forming step for forming a skin material, FIG. 1 (B) shows a base material forming step for forming a base material, and FIG. 1 (C) shows a base material forming a base material. The vacuum forming step of attaching by vacuum forming is shown in.

In the molding procedure of the vacuum-formed interior component 10, as shown in FIG. 1 (A), the skin material forming step <S1> for forming the skin material 1 and the base material 2 are formed as shown in FIG. 1 (B). The base material 2 formed in the base material forming step <S2> and the skin material 1 formed in the skin material forming step <S1> in the base material forming step <S2> as shown in FIG. 1 (C). The surface 21 is provided with a vacuum forming step <S3> which is attached to the surface 21 by vacuum forming to form the vacuum forming interior component 10.

Specifically, as shown in FIG. 1 (A), in the epidermis material forming step <S1>, the epidermis is composed of the epidermis layer 11 having excellent ductility on the front surface side and the soft cushion layer 12 on the back surface side. The material 1 is cut into a predetermined size. The skin layer 11 is made of an olefin-based elastomer (TPO) having a thickness of, for example, about 0.5 to 0.8 mm. The cushion layer 12 is made of polypropylene foam (PPF) having a thickness of, for example, about 3 to 4 mm. An adhesive is applied to the back surface of the cushion layer 12. Further, the skin material 1 is heated to a predetermined temperature (for example, about 150 to 200 ° C.) in order to improve ductility.

Further, as shown in FIG. 1 (B), in the base material forming step <S2>, the base material 2 shaped into a predetermined shape is formed by injection molding or the like. The base material 2 is provided with a plurality of thick-walled portions 22, and a plurality of cavity rib portions 23 are formed on each thick-walled portion 22 with the concave groove 24 interposed therebetween. The base material 2 is made of a synthetic resin such as polypropylene (PP) or the like. Further, a plurality of vacuum suction holes 27 for vacuum suctioning the skin material 1 are dispersedly formed on the base material 2.

Further, as shown in FIG. 1C, in the vacuum forming step <S3>, with the skin material 1 covered on the surface 21 of the base material 2, the vacuum forming mold (not shown) is closed to form the base material 2. By vacuum suction from the back surface side, the skin material 1 is attached to the surface 21 of the base material 2 to form the vacuum formed interior component 10. It should be noted that vacuum suction may be performed from the surface side of the skin material 1 to form a grain pattern on the skin layer 11 of the skin material 1. Here, the vacuum-formed interior component 10 is an instrument panel mounted on a vehicle, but the present invention is not necessarily limited to this. The arrows shown in FIG. 1C indicate the front-back, left-right, and up-down directions when the vacuum-formed interior component 10 is mounted on the vehicle.

<Characteristic structure of this vacuum-formed interior part and its effect>
Next, the location where the cavity rib portion of the base material, which is a characteristic structure of the vacuum-formed interior component according to the present embodiment, is formed and the effect of the skin material on sink marks will be described with reference to FIGS. 1 to 7. FIG. 2 shows a detailed perspective view of part A shown in FIG. 1 (B). FIG. 3 shows a cross-sectional view taken along the line CC shown in FIG. FIG. 4 shows a cross-sectional view taken along the line DD shown in FIG. FIG. 5 shows a cross-sectional view taken along the line EE shown in FIG. FIG. 6 shows a detailed perspective view of the portion B shown in FIG. 1 (B). FIG. 7 shows a partial cross-sectional view of the vacuum formed interior part formed in the vacuum forming step shown in FIG. 1 (C), and FIG. 7 (A) shows a state before the skin material is attached to the base material. , FIG. 7B shows a state after the skin material is attached to the surface of the base material.

As shown in FIGS. 1 to 7, the vacuum-formed interior component 10 includes a base material 2 to which a skin material 1 composed of a skin layer 11 and a cushion layer 12 is attached to the surface 21 of the base material 2. A plurality of cavity rib portions 23 are formed in the thick portion 22 with the concave groove 24 interposed therebetween. Further, the cavible rib outer peripheral portions 25, 25B surrounding the cavible rib portion 23 and the concave groove 24 of the base material 2 are on the back surface side from the front surface 261 of the general portion 26 of the base material 2 adjacent to the cavible rib outer peripheral portions 25, 25B. It is provided with meat stealing portions 25N and 25BN formed by being slightly recessed with a predetermined width w1. Further, the upper end surface 231 of the cavity rib portion 23 is formed at substantially the same height as the surface 261 of the general portion 26.

Here, the thick portion 22 of the base material 2 is formed so as to project toward the back surface side of the base material 2 formed substantially flat, and is appropriately spaced in the longitudinal direction (left-right direction of the vehicle) of the vacuum-formed interior component 10. Is arranged with. The bottom surface of the thick portion 22 is formed on a substantially rectangular flat surface, and constitutes a mounting seat 221 to which an air conditioning duct (not shown) is joined by welding or the like. Further, the plurality of cavity rib portions 23 stand vertically with respect to the mounting seat 221 in the vertical direction of the vehicle, and are formed parallel to the front-rear direction of the vehicle in accordance with the die-cutting direction in the resin molding die of the base material 2. ing. The upper end of the concave groove 24 that separates the cavity rib portions 23 is released, and the lower end is closed by the mounting seat 221. Here, the thickness d4 of the cavity rib portion 23 is formed substantially the same as the width d5 of the concave groove 24, and is also formed substantially the same as the thickness d2 of the general portion 26 of the base material 2, but d2, The sizes of d4 and d5 may be different from each other.

Further, as shown in FIG. 2, the meat stealing portion 25N is formed with a predetermined width w1 over the entire circumference of the outer peripheral portion 25 of the cavity rib of the base material 2 formed substantially flat. However, as shown in FIG. 6, when the design bending line 2DL is formed near the outer peripheral portion 25B of the cavity rib, the meat stealing portion 25BN is a predetermined distance from the design bending line 2DL of the base material 2. It is preferable that they are formed in a range separated by w2. When the predetermined distance w2 is equal to or less than the width w1 of the meat stealing portion 25BN, the meat stealing portion 25BN is formed in a substantially U shape.

As shown in FIG. 6, the meat stealing portion 25BN is separated from the design bending line 2DL of the base material 2 by a predetermined distance w2, so that the skin is attached to the vicinity of the design bending line 2DL of the base material 2. This is because the influence of the meat stealing portion 25BN on the appearance quality of the material 1 can be avoided. Further, in the vicinity of the design bending line 2DL of the base material 2, the boundary line of the sink mark portion HK of the skin material 1 at the portion where the cavity rib portion 23 of the base material 2 is formed becomes inconspicuous due to the design bending line 2DL. Because.

Further, as shown in FIGS. 2 and 6, a first ventilation groove 28 for communicating the vacuum suction hole 27 and the concave groove 24 formed in the base material 2 is formed on the surfaces of the meat stealing portions 25N and 25BN. Is preferable. By forming the first ventilation groove 28, the air in the concave groove 24 sealed by the skin material 1 is released to the outside air through the first ventilation groove 28 when the temperature rises and expands. This is because the deformation of the skin material 1 can be avoided.

Further, since the first ventilation groove 28 is formed on the surfaces of the meat stealing portions 25N and 25BN, when the skin material 1 is attached to the base material 2, the first ventilation groove 28 is provided by the cushion layer 12 pressed by the vacuum forming mold. The groove 28 can be temporarily closed, and the vacuum suction from the first ventilation groove 28 to the concave groove 24 can be restricted to prevent the cushion layer 12 entering the concave groove 24 from expanding. can.

Here, as shown in FIG. 5, the first ventilation groove 28 has a groove width d7 at the upper end of about 1.1 mm, a groove width d8 at the lower end of about 0.5 mm, and an upward opening angle θ of the groove side wall. Is about 1.5 degrees, and it is preferable that the groove is formed in a minute groove having a substantially trapezoidal cross section in which the curved surface radius R of the intersection between the groove side wall and the meat stealing portions 25N and 25BN is about 0.3 mm. Since the first ventilation groove 28 is a minute groove having a substantially trapezoidal cross section, it is easy to avoid sink marks due to the first ventilation groove 28 with respect to the skin material 1 attached to the base material 2. Is.

Further, as shown in FIGS. 2, 4 and 6, the base material is formed at the intersection 232 of the cab rib portion 23 with respect to the vertical wall portion 222 that stands up from the inner edge of the cav rib outer peripheral portions 25 and 25B to the back surface side of the base material 2. It is preferable that a second ventilation groove 29 is formed on the surface side of the second so as to communicate the concave grooves 24 with each other. In this case, the air in the plurality of concave grooves 24 sealed by the skin material 1 is collected in the specific concave groove 24 via the second ventilation groove 29 when the temperature rises and expands. After that, it can be discharged to the outside air through the first ventilation groove 28. Therefore, the number of the first ventilation grooves 28 formed in the meat stealing portions 25N and 25BN can be minimized with respect to the plurality of concave grooves 24, and the appearance defect of the skin material 1 due to the first ventilation grooves 28 can be further suppressed.

Further, it is preferable that the second ventilation groove 29 is formed so as to gradually increase the depth from the upper end surface 231 of the cavity rib portion 23 toward the intersection 232. Further, the groove depth d6 at the intersection 232 of the second ventilation groove 29 with respect to the surfaces of the meat stealing portions 25N and 25BN is preferably about 0.3 mm. This is because the groove shape can further suppress the appearance defect of the skin material 1 due to the second ventilation groove 29.

Further, as shown in FIG. 7, the recessed amounts d1 of the meat stealing portions 25N and 25BN are formed to have a size of about 1/20 to 1/10 times the thickness d3 of the cushion layer 12 before vacuum forming. Is preferable. Further, it is preferable that the width w1 of the meat stealing portions 25N and 25BN is formed to have a size of about 50 to 150 times the dent amount d1. In this case, the restored thickness of the cushion layer 12 attached to the surfaces of the meat stealing portions 25N and 25BN is attached to the surface 261 of the general portion 26 of the base material 2 adjacent to the outer peripheral portions 25 and 25B of the cabinet rib. The thickness of the cushion layer 12 after restoration can be reduced by about 1/20 to 1/10 with a gentle inclination in proportion to the amount of depression d1. Therefore, the sink mark portion HK in which the skin material 1 attached to the portion where the cavity rib portion 23 is formed by the part 12a of the cushion layer 12 invading the recessed groove 24 appears to be partially recessed, and the cavity rib portion 23. There is no clear boundary line between the skin material 1 and the skin material 1 attached to the general portion 26, and both can be connected by a gentler curved surface YK. Can be done.

<Effect>
As described in detail above, according to the vacuum-formed interior component 10 according to the present embodiment, the cabrib outer peripheral portions 25 and 25B surrounding the cavible rib portion 23 and the concave groove 24 of the base material 2 have the cabrib outer peripheral portion. Since the meat stealing portions 25N and 25BN formed by being slightly recessed with a predetermined width w1 on the back surface side from the front surface 261 of the general portion 26 of the base material 2 adjacent to the 25 and 25B, the meat stealing portions 25N and 25BN are provided. The thickness of the cushion layer 12 attached to the surface of the surface after restoration is calculated from the thickness of the cushion layer 12 attached to the surface of the general portion 26 of the base material 2 adjacent to the outer peripheral portions 25 and 25B of the cabinet ribs. , It can be made slightly smaller by the amount of dent d1.

On the other hand, the upper end surface 231 of the cab rib portion 23 is formed at substantially the same height as the surface 261 of the general portion 26 of the base material 2 adjacent to the cav rib outer peripheral portions 25 and 25B. Although it can be avoided that the thickness of the cushion layer 12 attached to the surface 261 of the general portion 26 of the adjacent base material 2 is larger than the thickness after restoration, a part 12a of the cushion layer 12 has substantially the same width as the cavity rib portion 23. Since it penetrates into the concave groove 24, the thickness of the cushion layer 12 attached to the portion where the cavity rib portion 23 is formed after restoration is the restoration of the cushion layer 12 attached to the surfaces of the meat stealing portions 25N and 25BN. It is smaller than the later thickness.

Therefore, the boundary between the sink mark portion HK in which the skin material 1 attached to the portion where the cavity rib portion 23 is formed appears to be partially recessed and the skin material 1 attached to the general portion 26 in which the cavity rib portion 23 is not formed is defined. , The skin material 1 attached to the meat stealing portions 25N and 25BN can make a gentle curved surface YK and can be blurred. As a result, the sink marks of the skin material 1 at the portion where the cavity rib portion 23 of the base material 2 is formed can be made inconspicuous.

Therefore, according to the present embodiment, it is possible to provide the vacuum formed interior component 10 which can improve the appearance quality by making the sink marks of the skin material 1 inconspicuous at the portion where the cavity rib portion 23 of the base material 2 is formed.

Further, according to the present embodiment, since the meat stealing portion 25BN is formed in a range separated from the design bending line 2DL of the base material 2 by a predetermined distance w2, the design bending line 2DL of the base material 2 is formed. It is possible to avoid the influence of the meat stealing portion 25BN on the appearance quality of the skin material 1 attached in the vicinity. On the other hand, in the vicinity of the design bending line 2DL of the base material 2, the boundary line of the sink mark portion HK of the skin material 1 at the portion where the cavity rib portion 23 of the base material 2 is formed becomes inconspicuous due to the design bending line 2DL. .. Therefore, the skin material 1 adhered to the vicinity of the bending line 2DL on the design of the base material 2 is prevented from being affected by the meat stealing portion 25BN at the portion where the cavity rib portion 23 of the base material 2 is formed, and the skin is covered. The sink marks of the material 1 can be made inconspicuous, and the appearance quality can be further improved.

Further, according to the present embodiment, the first ventilation groove 28 for communicating the vacuum suction hole 27 and the concave groove 24 formed in the base material 2 is formed on the surfaces of the meat stealing portions 25N and 25BN. When the temperature of the air in the concave groove 24 sealed by the skin material 1 rises and expands, the air can be discharged to the outside air through the first ventilation groove 28. Further, since the first ventilation groove 28 is formed on the surfaces of the meat stealing portions 25N and 25BN, when the skin material 1 is attached to the base material 2, the first ventilation groove 28 is formed by the cushion layer 12 pressed by the vacuum forming mold. 28 can be temporarily closed, vacuum suction from the first ventilation groove 28 to the concave groove 24 can be restricted, and expansion of the cushion layer 12 invading the concave groove 24 can be prevented. Therefore, it is possible to prevent the skin material 1 from being deformed due to the expansion of the air in the concave groove 24 while preventing the amount of sink marks of the skin material 1 from increasing at the portion where the cavity rib portion 23 of the base material 2 is formed.

Further, according to the present embodiment, the intersection 232 of the cabrib portion 23 with respect to the vertical wall portion 222 rising from the inner edges of the cab rib outer peripheral portions 25 and 25B to the back surface side of the base material has a concave groove on the front surface side of the base material 2. Since the second ventilation groove 29 for communicating the 24 with each other is formed, the air in the plurality of concave grooves 24 sealed by the skin material 1 expands when the temperature rises, and the second ventilation groove 29 After being assembled in the specific concave groove 24 via the above, the air can be discharged to the outside air through the first ventilation groove 28. Therefore, the number of the first ventilation grooves 28 formed in the meat stealing portions 25N and 25BN can be minimized with respect to the plurality of concave grooves 24, and the appearance deterioration of the skin material 1 due to the first ventilation grooves 28 can be suppressed.

Further, according to the present embodiment, the dent amount d1 of the meat stealing portions 25N and 25BN is formed to have a size of about 1/20 to 1/10 times the thickness d3 of the cushion layer 12 before vacuum forming, and the meat is formed. Since the width w1 of the stealing portions 25N and 25BN is formed to be about 50 to 150 times the size of the dent amount d1, the thickness of the cushion layer 12 attached to the surfaces of the meat stealing portions 25N and 25BN after restoration. From the restored thickness of the cushion layer 12 attached to the surface 261 of the general portion 26 of the base material 2 adjacent to the outer peripheral portions 25 and 25B of the cavity rib, 1 in a gentle inclination in proportion to the amount of dent d1. It can be reduced by about 20/20 to 1/10. Therefore, between the sink mark portion HK in which the skin material 1 attached to the portion where the cavity rib portion 23 is formed appears to be partially recessed, and the skin material 1 attached to the general portion 26 in which the cavity rib portion 23 is not formed. , It is possible to eliminate the clear boundary line and connect the two with a gentler curved surface YK, and it is possible to blur the sink mark portion HK of the skin material 1 even more inconspicuously.

<Modification example>
The above-described embodiment can be changed without changing the gist of the present invention. For example, according to the present embodiment, the plurality of cab rib portions 23 stand vertically with respect to the mounting seat 221 of the thick portion 22 in the vertical direction of the vehicle, and the thickness d4 of the cab rib portions 23 is the concave groove 24. It is formed to be substantially the same as the width d5 of, but is not necessarily limited to this. For example, the thickness d4 of the cavity rib portion 23 may be different from the width d5 of the concave groove 24, and the upper end portion of the cavity rib portion 23 is slightly thinner than the base end portion in order to perform die cutting smoothly. It may have been done.

Further, the upper end surface 231 of the cavity rib portion 23 is formed at substantially the same height as the surface 261 of the general portion 26 of the base material 2 adjacent to the outer peripheral portions 25 and 25B of the cavity rib, but must be exactly the same. There is no. Some adjustment is possible depending on the amount of sink marks of the skin material 1.

INDUSTRIAL APPLICABILITY The present invention can be used as a vacuum-formed interior component in which a plurality of protruding ribs (cavity rib portions) are formed on the surface of a thick portion of a base material to which a skin material is adhered with a concave groove.

1 Skin material 2 Base material 2DL Bending line 10 Vacuum formed interior parts 11 Skin layer 12 Cushion layer 21 Surface 22 Thick part 23 Cavirib part 24 Concave groove 25, 25B Cavirib outer circumference 25N, 25BN Meat steal part 26 General part 27 Vacuum suction Hole 28 1st ventilation groove 29 2nd ventilation groove 222 Vertical wall part 231 Upper end surface 232 Crossing part 261 Surface d1 Depression amount d3 Cushion layer thickness w1 Width

Claims (5)

A vacuum-formed interior component provided with a base material having a skin material composed of a skin layer and a cushion layer adhered to the surface, and a plurality of cavible rib parts formed on a thick portion of the base material with a concave groove. hand,
The outer peripheral portion of the cavible rib that surrounds the cavible rib portion and the concave groove of the base material is formed by being slightly recessed on the back surface side from the front surface of the general portion of the base material adjacent to the outer peripheral portion of the cab rib by a predetermined width. Vacuum-formed interior parts featuring a meat stealing part. In the vacuum formed interior component according to claim 1,
The vacuum-formed interior component is characterized in that the meat stealing portion is formed within a range separated by a predetermined distance from the design bending line of the base material. In the vacuum formed interior component according to claim 1 or 2.
A vacuum-formed interior component characterized in that a first ventilation groove communicating the vacuum suction hole formed in the base material and the concave groove is formed on the surface of the meat stealing portion. In the vacuum formed interior component according to claim 3.
A second ventilation groove is formed at the intersection of the cabrib portion with respect to the vertical wall portion rising from the inner edge of the outer peripheral portion of the cab rib to the back surface side of the base material to communicate the concave grooves with each other on the front surface side of the base material. Vacuum-formed interior parts that are characterized by being In the vacuum-molded interior component according to any one of claims 1 to 4.
The dented amount of the meat stealing portion is formed to have a size of about 1/20 to 1/10 times the thickness of the cushion layer before vacuum forming, and the width of the meat stealing portion is 50 to 50 to 1/10 of the dented amount. A vacuum-formed interior part characterized in that it is formed to be about 150 times as large.

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