JP7242015B2 - interior parts - Google Patents

Description

TECHNICAL FIELD The present invention relates to an interior component in which a skin material is covered on the surface of a core material having an outer wall around the periphery.

Interior parts such as the cover of a console box for automobiles generally have a structure in which the surface of a core material is covered with a skin material. The core material is made of resin, and is a molded article having a structure including a top plate and an outer wall extending downward from the periphery thereof. The skin material is sewn into a bag shape, covered from the top plate side of the core material, and the peripheral edge of the skin material is folded back and fixed to the back surface of the outer wall of the core material. As the skin material, a urethane foam layer formed on the back surface of the skin layer to provide cushioning properties is widely used.

A metal tucker is generally used as means for fixing the peripheral edge of the skin material to the core material. However, fixing with a tacker requires skill, and it is not easy to fix the corners of the core material so that the skin material does not wrinkle. Also, if the tucker is not hit properly, the tip of the tucker may protrude toward the upholstery material.

Therefore, as shown in Patent Document 1, a technique has been proposed in which protrusions are formed on the inner surface of the outer wall of the core material, and locking holes formed in the periphery of the skin material are inserted into and fixed to these protrusions. However, in order to form the protrusions perpendicular to the outer wall of the core material on the inner surface of the outer wall, the mold structure for molding the core material becomes complicated, resulting in a problem of high cost. Moreover, since many locking holes must be formed in the periphery of the skin material, there is a problem that the manufacturing cost of the skin material increases.

In addition, adhesives are used to fix the peripheral edge of the skin material to the back of the outer wall, but the adhesive takes time to dry and the adhesive breaks down when the vehicle interior becomes hot. There was also the possibility of loosening, and there was concern about durability.

In order to solve such conventional problems, the present applicant sews a core material made of resin on the inner surface of the peripheral edge of the skin material, elastically folds this core material into the inner corner part of the outer wall, We have developed a technique for bringing the peripheral edge of the skin material into close contact with the inner surface of the outer wall of the core material by utilizing the repulsive force generated by this folding, and proposed it as Patent Document 2.

With this technique, the repulsive force of the resin core material is strong at the corners of the core material, so that it can be securely fixed, but the repulsive force of the resin core material is insufficient at the straight parts. . Therefore, a plurality of retaining ribs are formed on the back surface of the core material, and the edge portions of the folded back core material and skin material are fixed by the retaining ribs. However, since the retaining ribs of Patent Document 2 are formed at intervals, when the straight portion of the core material is long, the positions of the edge portions of the core material and the skin material are reliably positioned at the intermediate portion of the retaining ribs. It could never be decided.

Japanese Patent No. 5607375 JP 2018-144785 A

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-described conventional problems and to provide an interior component in which the edges of the skin material are securely fixed to the back surface of the outer wall of the core material without using tackers or adhesives. is.

The present invention, which has been made to solve the above-mentioned problems, is an interior component in which a skin material is covered on the surface of a core material having an outer wall around the periphery, and the skin material is a core material made of resin on the inner surface of the peripheral edge portion. is sewn, and a continuous groove is formed along the outer wall at the inner position of the outer wall of the core material except for the corners , and the core material is elastically folded back to the inner side of the outer wall. , the peripheral edges of the core material and skin material are inserted into the continuous groove and fixed, and at the corners of the outer wall of the core material, the repulsive force of the resin core material causes the peripheral edge of the skin material to adhere to the inner surface of the outer wall. It is characterized by

Further, it is possible to adopt a structure in which the skin material folded back on the edge of the outer wall of the core material is pressed down by an inner cover covering the back surface of the core material.

In the interior part of the present invention, a continuous groove is formed along the outer wall inside the portion of the outer wall of the core material excluding the corner portion, and the resin core material sewn to the peripheral edge of the outer skin material is attached to the outer wall. The peripheral edge portions of the core material and the skin material are inserted into the continuous groove and fixed. At the corners of the core material, the repulsive force of the resin core material allows the peripheral edge of the skin material to adhere to the inner surface of the outer wall. can be fixed to the inside of the outer wall. Therefore, according to the present invention, it is possible to provide an interior component in which the edge portion of the skin material is securely fixed to the back surface of the outer wall of the core material without using a tucker or an adhesive.

It is a perspective view which shows the interior component of embodiment. It is a top view of the state in which the interior component of embodiment was reversed upside down. It is a perspective view which shows the state in the middle of assembly. It is a front view which shows the back surface of a core material. It is sectional drawing of the principal part which shows the fixing procedure of a skin material.

Embodiments of the present invention are shown below.
FIG. 1 is a perspective view showing an interior component according to an embodiment of the present invention, and FIG. 2 is a plan view showing the interior component according to the embodiment upside down. The interior component of the embodiment is a cover body for an automotive console box, and has a structure in which the surface of a core material 10 is covered with a skin material 11 as in the conventional case. However, it goes without saying that the present invention can be applied to other than the cover of the console box. The skin material 11 is made by forming a urethane foam layer on the back surface of the skin layer to impart cushioning properties.

As shown in FIG. 3, the core member 10 is a resin molded product having a top plate 12 and an outer wall 13 therearound. The outer wall 13 of the core material 10 has straight portions 14 and corner portions 15 . On the back surface of the top plate 12, as in the conventional case, reinforcing ribs and members for attaching an inner lid, which will be described later, are formed.

As shown in FIG. 3, a core material 16 made of resin is sewn on the periphery of the skin material 11 . This core material 16 has appropriate elasticity and rigidity, and in this embodiment, a resin core material having a constant width of about 0.5 to 2.0 mm in thickness and about 5 to 15 mm in width is used. there is A core material 16 made of resin is sewn on the inner surface of the peripheral portion of the outer skin material 11 over the entire circumference, forming an annular elastic body as a whole.

As shown in FIGS. 3 and 4, an inner wall 17 is formed along the outer wall 13 inside the outer wall 13 of the core material 10, and a continuous groove 18 is formed between the outer wall 13 and the inner wall 17. there is The continuous groove 18 is parallel to the outer wall 13 in this embodiment. The continuous groove 18 is formed only in the straight portion 14 of the outer wall 13 of the core material 10 and is not formed in the corner portion 15 . Also, the inner wall 17 can be divided in the middle as shown in FIG.

Since the inner wall 17 is substantially parallel to the outer wall 13, molding can be easily performed without complicating the structure of the mold for molding resin.

As shown in FIGS. 3 and 5A, when the skin material 11 is placed over the core material 10, the periphery of the skin material 11 tries to expand outward due to the elasticity of the sewn resin core material 16. . From the state shown in FIG. 3, the core material 16 is elastically folded inside the outer wall 13 of the core material 10 as shown in FIG. Since the core material 16 has elasticity, when it exceeds the neutral point, it is turned inward and folded back by its own elasticity. It is preferable that this folding is performed from the straight portion 14 and lastly performed at the corner portion 15 where the repulsive force of the core member 16 is maximized.

The peripheral edge of the folded up skin material 11 is inserted into a continuous groove 18 formed inside the outer wall 13 as shown in FIG. 5(B). The folded back core material 16 tends to spread outward due to its own elasticity, so that it can be fixed simply by inserting it into the continuous groove 18 . This state is shown in FIG.

However, in order to prevent the skin material 11 from slipping out of the core material 10 when an unexpected external force acts on the skin material 11, the edge of the outer wall 13 of the core material 10 is closed by the inner lid 19 as shown in FIG. 5(C). It is preferable to press the skin material 11 that has been folded back at the portion of the continuous groove 18 . With such a structure, it is possible to reliably prevent the core member 16 from falling out of the continuous groove 18 .

As described above, in the present invention, since the peripheral edge of the skin material 11 is inserted into the continuous groove 18 together with the core material 16, even if the straight part 14 of the outer wall 13 of the core material 10 is long, the peripheral edge of the skin material 11 can be The part can be held stably.

In addition, since the continuous groove 18 is formed only in the straight portion 14 in the present invention , the inner wall 17 does not become an obstacle when force is applied to the corner portion 15 to bend the core material 16 . However, depending on the shape of the core material 10, it may be desirable to hold the core material 16 at the corner portion 15 as well.

As described above, the interior parts of the present invention are those in which the edges of the skin material 11 are securely fixed to the back surface of the outer wall 13 of the core material 10 without using tackers or adhesives as in the conventional art. is. According to the present invention, even a non-skilled operator can attach the skin material 11 to the core material 10 without causing wrinkles, and the rate of defective products can be reduced. There is

10 core material 11 skin material 12 top plate 13 outer wall 14 straight part 15 corner part 16 core material 17 inner wall 18 continuous groove 19 inner lid

Claims (2)

An interior part in which a skin material is covered on the surface of a core material having an outer wall around the periphery,
The skin material has a resin core material sewn on the inner surface of the peripheral edge,
A continuous groove is formed along the outer wall at the inner position of the outer wall of the core material except for the corner portions ,
After elastically folding back the core material to the inside of the outer wall, the peripheral edge portions of the core material and the skin material are inserted into the continuous groove and fixed ,
1. An interior part characterized in that, at a corner portion of an outer wall of a core material, a peripheral portion of a skin material is brought into close contact with an inner surface of the outer wall by a repulsive force of a resin-made core material. 2. The interior part according to claim 1 , wherein the skin material folded back on the edge of the outer wall of the core material is pressed down by an inner cover covering the back surface of the core material .

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