JPH0426080Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an integrally molded skin sheet, and particularly relates to an integrally molded skin sheet in which a convex pattern is formed on the surface of the sheet.

[Prior art] The integrally molded skin sheet eliminates the troublesome work of enclosing the seat by attaching the seat cover to the seat pad when forming the seat cushion and the seat back, thereby streamlining the structure of the seat. The aim is to

By the way, when forming a partially uneven pattern on the surface of a seat, generally a high frequency press method or a heat press method is used, but this generally involves a type in which the seat cover and seat pad are separate pieces. It is something.

Therefore, when performing integral skin molding using a seat cover with this type of pattern, it is usually considered to form irregularities corresponding to the pattern of the seat cover on the mold surface of the lower mold, and then mold the seat cover. This is a method of positioning on these uneven parts, and by this method, a sheet with an appearance similar to that of a separate type can be obtained.

[Problems to be Solved by the Invention] However, with this technique, it is actually necessary to add a surface patterning process to the seat cover prior to foam molding, which makes manufacturing cumbersome. In addition, if the positioning is not performed accurately with respect to the mold surface,
The foaming pressure inside the mold collapses the unevenness of the surface,
This may cause product defects.

Further, careful attention is required for setting, and even if the setting is made with high precision, there is a great possibility that it will shift due to drag during mold clamping, making it difficult to expect good molding.

Moreover, when changing the pattern, expensive mold modification was required each time, and the manufacturing cost increased considerably.

This idea was made in view of the above problems, and provides an integrally molded skin sheet that can easily form a convex pattern on the sheet surface without forming unevenness on the surface of the foam mold. It is intended to.

[Means for Solving the Problems] In order to achieve the above object, the present invention places a seat cover with wading bonded to the back surface of the outer skin in a mold for molding the seat pad, and also injects foamed resin into the mold. In the skin integrally molded seat where the seat cover and seat pad are integrally molded by filling the stock solution and foaming,
The present invention is characterized in that a partial non-adhesive portion is provided on the joint surface between the skin of the seat cover and the wadding.

[Function] With the above configuration, the skin will rise above the wadding in the non-adhesive area provided at the joint surface between the skin of the seat cover and the wading, and a convexity will be formed on the seat surface according to the shape of this non-adhesive area. A pattern or, in some cases, a wrinkled pattern is formed.

[Example] Hereinafter, an example of this invention will be described in detail using the drawings.

FIG. 1 is a perspective view showing the external appearance of a skin-integrated sheet according to this invention, and FIG. 2 is a schematic cross-sectional view of the same sheet.

This seat is configured as a front seat for an automobile, and a reclinable seat back 2B is arranged at the rear end of the seat cushion 2A, and a headrest 2C is provided above the seat back 2B.

Seat cushion 2A and seat back 2B
Each consists of a main part that receives the human body, and side parts that are raised on both sides of the main part and support the human body from both sides.

These seat cushions 2A and seat bags 2B have seat pads 4A, 4B mounted on seat frames 3A, 3B, and seat covers 1A, 1B attached to the outer peripheries of the pads 4A, 4B.

Each seat cover 1A, 1B has a wadding 6 made of slab urethane attached to the back side of a skin 5 made of vinyl chloride, for example, with an adhesive or the like, and has a structure in which no backing fabric is applied to the back side of the wadding 6. There is. It goes without saying that the present invention can also be applied to a material covered with backing fabric.

These seat covers 1A and 1B are produced by cutting a plurality of cover pieces each having a predetermined shape from a raw material formed by laminating a skin 5 and a wadding 6, and sewing these cover pieces together. It is formed in a shape corresponding to the outer shape of the seat cushion 2A or seat bag 2B.

In such an integrally molded skin sheet, as shown in FIG. After a stock solution of foamed resin is injected into the mold, an upper mold (not shown) is fitted to the lower mold 7 to perform foam molding.

Figure 4 shows such seat covers 1A and 1B.
The figure shows the original fabric manufacturing equipment.

This device applies an adhesive to the bonding surface of the skin 5 and the wadding 6, which are supplied by two delivery rollers 8 and 9, and then bonds them together by bonding rollers 10 and 11.

Then, on the joint surface between the skin 5 and the wading 6,
For example, as shown by the broken line in FIG. 5, a band-shaped non-bonded portion 12 is formed. This non-bonded portion 12 is formed by partially not applying adhesive, and the skin 5 and wading 6 can be separated from each other only in this non-bonded portion 12. Therefore,
As shown in FIG. 6, when this original fabric is placed in a flat state, the skin 5 and the wading 6 in the non-bonded part 12 are in close contact with each other, but the
As shown in the figure, when the original fabric is curved in the direction of the skin 5, the skin 5 at the non-bonded portion 12 is raised by the wadding 6 and protrudes in a mountain-shaped cross section.

Such non-bonded portions 12 are formed when the sheet cushion 2 is cut into cover pieces having a predetermined shape (for example, the shape shown by the dotted line in FIG. 5).
A or seat bag 2B is formed at a portion disposed on an inclined surface from the main portion to the side portion.

Therefore, when the seat covers 1A, 1B are integrally molded with the seat pads 4A, 4B and then removed from the mold, the elasticity of the skin 5 causes the skin 5 in the non-joined portion 12 to
is raised, and a convex pattern 13 is formed on the sheet surface as shown in FIG.

In this way, by providing the non-joint portion 12 between the skin 5 and the wading 6 of the seat covers 1A, 1B, the convex pattern 13 on the seat surface can be easily obtained.

In addition, when the width of the non-joint part 12 of the skin 5 is sufficiently large, the skin 5 of the non-joint part 12 becomes loose and a wrinkled pattern is formed instead of the convex pattern of the skin 5 protruding into a chevron shape. It turns out.

[Effects of the invention] As explained above, according to the invention, a convex pattern can be easily formed on the seat surface by the non-adhesive portion provided on the joint surface of the seat cover skin and wadding. .

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the external appearance of the skin integrally molded seat according to this invention, Fig. 2 is a schematic sectional view of the same sheet, Fig. 3 is a schematic sectional view illustrating the molding operation of the seat cover and the seat pad, Fig. 4 is a schematic side view showing a manufacturing apparatus for the original fabric of the seat cover, Fig. 5 is a perspective view showing the original fabric of the seat cover, Fig. 6 is a partial sectional view of the seat cover in a flat state, and Fig. 7 is Partial sectional view of the seat cover in a curved state, No. 8
The figure is a partial cross-sectional view of the sheet illustrating a convex pattern formed on the surface of the sheet. 1A, 1B... Seat cover, 4A, 4B...
Seat padded, 5... Epidermis, 6... Wading,
12... Non-joint portion, 13... Convex pattern.

Claims (1)

[Scope of utility model registration request] The seat cover with wadding glued to the back of the skin is placed in a mold for molding the seat pad, and the foam resin is injected into the mold for foam molding, thereby making the seat cover and seat pad integral. What is claimed is: 1. A sheet with an integrally molded skin, characterized in that a partial non-adhesive portion is provided on the joint surface of the skin of the seat cover and the wading.