JP2020124985A - Interior component - Google Patents

Abstract

To provide an interior component which can reliably fix a peripheral edge part of a skin material to an outer wall inner surface of a core material without using a tacker or adhesive and has no risk of generating abnormal sound.SOLUTION: An interior component includes a core material 10 provided with an outer wall 13 around, a skin material 11 which covers the surface, and an inner lid 30 fitted onto a rear surface of the core material 10. A peripheral edge part of the skin material 11 is sewn on by an astragal core material 20 surrounding an outer periphery of a shaft core 21 with a tape 22, and inside an outer wall of the core material 10, a reception groove 18 in which the astragal shape core material 20 is inserted is formed. The peripheral edge part of the skin material 11 is folded and inserted in the reception groove 18 together with the astragal shape core material 20, and the astragal shape core material 20 is pressed at an end part of the inner lid 30 inside the reception groove.SELECTED DRAWING: Figure 6

Description

The present invention relates to an interior part in which a surface of a core material having an outer wall around it is covered with a skin material.

Interior parts such as lids of console boxes for automobiles generally have a structure in which a surface of a core material is covered with a skin material. The core material is made of resin, and is a molded product having a structure having an outer wall hanging downward from the periphery of the top plate. The skin material is sewn in a bag shape in advance according to the shape of the core material, and is covered from the top plate side of the core material. The peripheral portion of the skin material is folded back on the back surface of the outer wall of the core material and fixed so as not to loosen. As the skin material, a material having a cushioning property by forming a urethane foam layer on the back surface of the skin layer is widely used.

Conventionally, a metal tacker has been mainly used as a means for winding and fixing the peripheral edge portion of the skin material around the back surface of the outer wall of the core material. However, fixing with a tucker requires skill, and it is not easy to fix the skin material so that wrinkles do not occur especially at the corners. Further, if the tucker fails to hit, the tip of the tucker may be projected to the skin material side.

In addition, adhesives are used to fix the peripheral edge of the skin material to the back surface of the outer wall of the core material, but it takes time to dry the adhesive, resulting in poor productivity and high temperature inside the vehicle. There was a possibility that the adhesive would loosen when it became, and I was worried about its durability.

Therefore, the present inventors sew a resin band having a constant width to the peripheral edge of the skin material, elastically fold the peripheral edge of the skin material together with the resin band into the inside of the outer wall of the core material, and the resin generated by this folding. A technique has been developed, in which the peripheral edge of the skin material is brought into close contact with the inner surface of the outer wall of the core material by utilizing the repulsive force of the band, and it has been proposed as Patent Document 1.

The method of fixing the skin material using the repulsive force of the resin band shown in Patent Document 1 gives very excellent results when the height of the outer wall of the core material is constant. However, when the height of the outer wall of the core material is not constant and there is an inclined portion, it may not be possible to securely fix it. This is because the resin band must be bent in the in-plane direction at the boundary between the straight portion and the inclined portion, but the resin band with a constant width cannot be bent in the in-plane direction.

Therefore, in such a case, it was attempted to use a resin core material having a corrugated piece on one side as shown in FIG. 8 instead of the resin band to enable bending in the in-plane direction. This resin core material is sewn to the peripheral edge of the skin material, inserted into the receiving groove of the core material and fixed. However, when it is mounted on an automobile, the core portion of the resin core material may rub against the resin core material due to vibration during running, and abnormal noise may occur. Although there is no functional problem, abnormal noise is not preferable because it gives an occupant an unpleasant sensation and deteriorates the vehicle interior environment.

JP, 2018-144785, A

Therefore, the object of the present invention is to solve the above-mentioned conventional problems, and to securely fix the peripheral edge portion of the skin material to the inner surface of the outer wall of the core material without using a tacker or an adhesive, and to generate an abnormal noise. It is to provide interior parts without fear.

The present invention made to solve the above problems is an interior component including a core material having an outer wall on the periphery, a skin material covered on the surface of the core material, and an inner lid attached to the back surface of the core material. There is a bead-shaped core material sewn around the outer circumference of the shaft core with tape on the peripheral edge of the skin material, and a receiving groove for inserting the bead-shaped core material is provided inside the outer wall of the core material. The outer edge of the skin material is folded back and inserted into the receiving groove together with the bead-shaped core material, and the structure is such that the bead-shaped core material is pressed into the receiving groove at the end of the inner lid. It is a feature.

It is preferable that the tape is a woven tape and is sewn to the outer periphery of the resin core in a folded state. Further, as in claim 3, the core shaft may be a resin core or a metal core.

The interior part of the present invention has a ball-shaped core material sewn on the peripheral edge of a skin material inserted into a receiving groove formed inside the outer wall of the core material, and a ball-shaped core material at the end of the inner lid. The structure is held in the receiving groove. Since this bead-shaped core material has the outer circumference of the shaft surrounded by tape, it can be bent in any direction, and even when the height of the outer wall of the core material is not constant and there is an inclined portion, it can be reliably The skin material can be fixed to.

Further, since the bead-shaped core member is formed by enclosing the outer periphery of the shaft core with tape, no abnormal noise is generated even when the core member comes into contact with the core member, and there is no fear of causing occupant discomfort.

It is a perspective view showing an interior part of an embodiment of the present invention. It is a top view of the state where the interior part of the embodiment was turned upside down except for the inner lid. It is a top view shown in the state where only the core material was turned upside down. FIG. 3 is an enlarged cross-sectional view of two types of beaded core materials. It is a perspective view which shows the state which sewed the bead-shaped core material to the peripheral part of the skin material. It is sectional drawing which shows the fixed state of the peripheral part of a surface material. It is sectional drawing which shows the fixed state of the peripheral part of a surface material. It is a perspective view which shows the resin core material provided with the wavy piece.

Embodiments of the present invention will be described below.
FIG. 1 is a perspective view showing an interior component of an embodiment of the present invention, and FIG. 2 is a plan view of the interior component of the embodiment, which is vertically inverted except for an inner lid. The interior component of the embodiment is a lid of a console box for an automobile, and has a structure in which a 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 not only to the lid of the console box but also to other interior parts such as armrests. The skin material 11 is formed by forming a urethane foam layer on the back surface of the skin layer 11 to provide cushioning properties. The skin material 11 is three-dimensionally sewn in advance according to the shape of the core material 10 described below, and is covered on the core material 10.

FIG. 3 is a plan view showing only the core material 10 turned upside down. The core material 10 is a resin molded product including a top plate 12 and an outer wall 13 around the top plate 12. The outer wall 13 has a linear portion 14 and a corner portion 15. Further, as shown in FIG. 1, the height of the outer wall 13 has a portion that is inclined so that the front portion becomes lower. On the back surface of the top plate 12, reinforcement ribs, members for attaching an inner lid described later, and the like are formed as in the conventional case.

As shown in FIG. 3, an inner wall 17 is formed inside the outer wall 13 of the core material 10, and a receiving groove 18 is formed between the outer wall 13 and the inner wall 17. In this embodiment, the receiving groove 18 is partially interrupted and is not formed on the entire inside of the outer wall 13, but may be formed over the entire circumference. Further, the receiving groove 18 does not necessarily have to be such a long groove, and a short groove may be formed at a predetermined pitch. Since the inner wall 17 is substantially parallel to the outer wall 13, it can be easily molded without complicating the structure of the resin molding die.

As shown in FIG. 4, a bead-shaped core material 20 is sewn to the peripheral edge of the skin material 11. The beaded core material 20 is formed by surrounding the outer circumference of a shaft core 21 with a tape 22. The shaft core 21 has a circular cross section with a diameter of about 3 to 5 mm, and can be made of a resin such as polypropylene. However, the shaft core 21 may be made of a flexible metal. The tape 22 is preferably a woven tape having a width of about 18 to 25 mm. Since the tape 22 functions as a cushioning material that prevents the shaft core 21 from directly contacting the core material 10, it is preferably made of a strong cloth. The tape 22 is folded in half with the shaft core 21 sandwiched inside and sewn to the peripheral edge of the skin material 11.

In FIG. 4(A), an industrial sewing machine equipped with a guide called a trumpet is used, the shaft core 21 and the tape 22 are simultaneously fed to the end of the skin material 11, and the tape 22 is folded in half using the guide. 21 and 21 are sewn to the end of the skin material 11. Therefore, the formation of the beaded core material 20 and the sewing to the skin material 11 are simultaneously performed. Further, in FIG. 4B, the bead-shaped core material 20 in which the outer periphery of the shaft core 21 is surrounded by the tape 22 is sewn in advance, and this is sewn to the end portion of the skin material 11. Although any structure may be used in the present invention, FIG. 4(A) has an advantage that the manufacturing cost is reduced because the process is simplified, and FIG. 4(B) requires two steps, but sewing is easy. Since there is an advantage that it can be performed, it may be appropriately selected. In any case, it is preferable that the shaft core 21 is located on the front side (outer surface side) of the skin material 11.

In this way, the bead-shaped core material 20 is sewn around the entire periphery of the skin material 11. This is shown in FIG.

Next, the peripheral portion of the skin material 11 is folded back together with the bead-shaped core material 20 at the end portion of the outer wall 13 of the core material 10 and inserted into the receiving groove 18 described above. 6 shows the case of the beaded core material 20 of FIG. 4(A), and FIG. 7 shows the case of the beaded core material 20 of FIG. 4(B). In any case, the projecting piece 31 formed at the end of the inner lid 30 is put inside the receiving groove 18 and is pressed into the receiving groove 18 to prevent the skin material 11 from falling off. .. The inner lid 30 is a resin molded product similar to the conventional one, and is firmly fixed with bolts or the like in a state of being positioned with respect to the core material 10. Therefore, when the inner lid 30 is pressed in this way, the peripheral edge of the skin material 11 is received. It does not come out of the groove 18.

Although the width of the receiving groove 18 can be inserted into the peripheral portion of the skin material 11 sewn with the beaded core material 20, it is formed when the projecting piece 31 of the inner lid 30 is inserted into the receiving groove 18. The gap to be formed is set to be smaller than the diameter of the beaded core material 20. In this way, the peripheral portion of the skin material 11 is securely fixed to the outer wall 13 of the core material 10 without using a tacker or an adhesive as in the conventional case.

Since the bead-shaped core material 20 used in the present invention can be bent in an arbitrary direction unlike the resin band of Patent Document 1, even at a portion where the height of the outer wall 13 of the core material 10 changes, there is a problem. It can be bent freely without. Further, since the bead-shaped core material 20 used in the present invention has the outer circumference of the shaft core 21 surrounded by the tape 22, when it is inserted into the receiving groove 18 of the core material 10 as shown in FIGS. 6 and 7. Therefore, it is possible to prevent the shaft core 21 and the core material 10 from coming into direct contact with each other and generating abnormal noise. Furthermore, the interior component of the present invention has many advantages such as being easily manufactured without the need for skilled workers as in the past.

10 core material 11 skin material 12 top plate 13 outer wall 14 straight line portion 15 corner portion 17 inner wall 18 receiving groove 20 bead-shaped core material 21 shaft core 22 tape 30 inner lid 31 projecting piece

Claims (3)

An interior component consisting of a core material having an outer wall around it, a skin material covered on the surface of the core material, and an inner lid attached to the back surface of the core material,
A bead-shaped core material in which the outer circumference of the core shaft is surrounded by tape is sewn on the peripheral edge of the skin material,
Inside the outer wall of the core material is formed a receiving groove for inserting the ball-shaped core material,
The interior part is characterized in that the peripheral edge portion of the skin material is folded back and inserted into the receiving groove together with the ball-shaped core material, and the ball-shaped core material is held in the groove by the end portion of the inner lid. .. The interior component according to claim 1, wherein the tape is a woven tape, and is sewn to the outer periphery of the resin core in a folded state. The interior part according to claim 1 or 2, wherein the core shaft is a resin core or a metal core.