JPH035194B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a seat skin having a three-dimensional shape that can be wrapped around the entire seat from the plane of the seat to the left and right banks.

Conventional technology Conventionally, in manufacturing this type of seat skin, a laminated material of a skin material, wadding, and a wading cover is used, and the laminate is shaped into a three-dimensional shape that is approximately the same cross-sectional shape as the cushion foam. Press molding is performed using a mold.

Problems to be Solved by the Invention However, since this seat skin is formed so that the lower opening is slightly enlarged and the circumferential side part is widened, when it is applied to the cushion foam, the circumferential side part becomes loose. Further, when the cushion form is attached, the lower opening is turned up to cover the cushion form, which requires time and effort to assemble.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a seat skin that can be formed into a three-dimensional shape that can be wrapped around the entire seat without causing any slack in the circumferential side.

Means for Solving the Problems In the method for manufacturing a seat skin according to the present invention, a seat skin having a three-dimensional shape that can cover the entire seat from the plane of the seat to the left and right banks is manufactured. A skin material is placed on a mold with the surface side in contact with a mold that has a concave part in the center corresponding to the plane of the part and raised parts on the left and right sides corresponding to each bank part, and this skin material is applied to the outer peripheral surface of the mold under vacuum. The whole material is formed into a predetermined shape by adsorption, and the skin material removed from the mold is turned over to the front side and attached to the cushion form.

Function: In this method of manufacturing the seat skin, the skin material is adsorbed onto the outer circumferential surface of a mold that has a concave portion in the center corresponding to the plane of the seat and raised portions on the left and right sides corresponding to each bank, and forms it into a predetermined shape. It can be formed by narrowing the open opening on the lower side, and it can be applied to the cushion form by bringing the surface side of the skin material into contact with the outer peripheral surface of the mold and then inverting it, so that it can be applied to the cushion form. It can be easily assembled to the cushion form by positioning the parts and inverting the circumference.

Embodiments The following description will be made with reference to the accompanying drawings.

The seat skin manufactured by the screw can be attached to a bucket-shaped seat with bank parts on the left and right sides, and this seat skin is formed from skin material a, wading b, and wading cover c using mold X, Push type Y
A welder type can be applied. The skin material a and the wading cover c are made of a weldable resin such as polyvinyl chloride, and the wading b is a slab material with good elasticity such as polyurethane foam. In addition _{, the} mold
x ₂ on the left and right sides, the overall shape is formed into a three-dimensional shape that corresponds to the outer shape of the cushion form. A through hole x 3 is formed in the concave portion x ₁ and the raised portions x ₂ and x ₂ of the mold X, and a through hole x ₃ is formed on the surface side through the mold body, and a vacuum (not shown) is formed through the through hole x ₃
The structure is such that the skin material a can be brought into close contact with the outer circumferential surface of the mold X and molded into a predetermined shape by suctioning the skin material a. In addition, the pressing die Y has a pressing surface that fits into the recess x ₁ of the mold .

Using this mold X, first, the skin material a is softened by heating with the heater H while the peripheral edge of the skin material a is held between the clamps P. Next, the softened skin material a is placed on the mold X with its surface side in contact with the descending movement of the clamp P, and a suction force is applied to the skin material a through the through hole x ₃ by the operation of the vacuum. This brings the skin material a into close contact with the outer peripheral surface of the mold X. By this close contact, the skin material a can be formed into a predetermined shape according to the outer peripheral surface of the mold X, and the opening of the skin material a can be formed to be narrowed. Further, since the skin material a is formed with its surface side in contact with the outer surface of the mold X, it is formed into a bulged shape in which the left and right bank portions are reversed. After forming the skin material a, a wadding b and a wading cover c are placed in a stacked state from the back side of the skin material a on the portion corresponding to the seat, and a concave-convex pattern is formed by pressing with a welder press die Y. can do. Since the skin material a is mechanically pressed against the mold X during this press molding, the overall shape of the skin material a can be more reliably formed into a predetermined shape.

The sheet skin manufactured in this way can be easily removed from the mold by pulling the opening opening on the lower side to expand a little, and in the unmolded state, the bulging part corresponding to the bank of the skin material a is oriented in the opposite direction. molded into a state. For this reason, the skin material a on which the uneven pattern is formed
It can be easily assembled by positioning the center portion on the plane of the cushion form F and inverting the bulging portion so as to cover the entire cushion form F. Further, even if the lower end side of the skin material is formed with a narrowed opening, it can be easily adhered to the skin material, and the occurrence of slack in the circumferential side portion can be suppressed due to the adhesion.

Incidentally, since the uneven pattern can be joined to the wading cover c without applying tension to the skin material a, it can be formed into a pattern with extremely large undulations. In addition, although the above-mentioned embodiment shows the case of forming a seat skin for an automobile, this method can also be widely applied to manufacturing seat skins for furniture and the like.

Effects of the Invention As described above, according to the method for manufacturing a seat skin according to the present invention, it is possible to easily form a seat skin that can be easily aligned and adhered to a cushion form and does not cause loosening on the circumferential side. It is what makes it possible.

[Brief explanation of the drawing]

Figures 1 a to c are explanatory diagrams showing the manufacturing process of the seat skin according to the present invention, Figure 2 is a sectional view of the seat skin manufactured by the same method, and Figure 3 is the covering of the seat skin to the cushion form. FIG. 4 is a partially enlarged sectional view of the seat skin. X: mold, x ₁ : recess, x ₂ , x ₂ : protrusion, F: cushion form.

Claims (1)

[Claims] 1 Manufacture of a seat skin that has a three-dimensional shape that can cover the entire seat from the seat plane to the left and right banks, which has a recess in the center that corresponds to the seat plane, and has ridges that correspond to each bank. A skin material is placed on the mold with the surface side in contact with the mold having left and right parts, and this skin material is vacuum-adsorbed to the outer circumferential surface of the mold to form the whole into a predetermined shape, and then removed from the mold. A method for manufacturing a seat skin, characterized in that the skin material is inverted to the front side and formed to adhere to a cushion foam.