JPH05212166A - Skin attaching method for sheet formed by adhesion - Google Patents

Abstract

PURPOSE:To adhere a cushioning body in the condition that the skin material is located in tight fit in a deep groove by sewing with machine a plastic pressing template fast to the surface of a skin material, holding the base of the template in engagement with a locational coordination recess in a die, and thereupon conducting pressure adhesion of skin material to the cushioning body. CONSTITUTION:A plastic plate having a V-section as a pressing template 5 is provisionally fixed to the part of skin material 3 at its surface with an out- stitch decoration 4, and a leg 5a at the free end of this plastic plate is held in a locational coordination recess 13 in a fixing die 10b. When an elevating/ sinking die 10a is sunk to put a cushioning body 1 in pressure contact tightly with the skin material 3, where the out-stitch decoration 4 is located in the middle of the swollen part, the material 3 is inserted tightly in a deep groove 2 in the cushioning body 1 through the template 5, and certain adhesion is made without risk that the out-stitch 4 is dislocated from the center of the deep groove 2 or meandering. After removal of dies, the template 5 is cut off at the part of out-stitch decoration 4 as boundary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for adhering a skin material in a deep groove portion when the skin material is pressure-bonded integrally with a cushion body having a deep groove portion on its surface by a molding die. The present invention relates to a method for adhering a skin of an adhesive molded sheet, which can be adhered to a cushion body in a perfectly aligned state without causing meandering or misalignment even when locating an out-stitch decoration or the like.

[0002]

2. Description of the Related Art For example, an adhesive molded sheet in which a skin material is pressure-bonded integrally with a cushion body having a deep groove portion on its surface is widely used as an automobile sheet. In order to locate the out-stitch decoration or the like formed on the skin material in the deep groove portion on the skin material, it may be manually inserted, or as shown in JP-A-62-22683, a pressing type may be used. Since the convex portion provided is inserted into the deep groove portion and pressed against the cushion body for adhesive integration, there was a problem that the outstitch decoration etc. deviated from the groove bottom center of the deep groove portion or meandered. ..

Therefore, a plate is sewn on the seaming portion by using the skin material as a sewn cover, the sewn cover is positioned on the mold using this plate, and the sewn cover and the cushion body are pressure-bonded and sewn. Although a method of removing a part of the plate from the surface of the cover has also been proposed (see, for example, JP-A-61-279279 and JP-A-2-257988), in this case, the plate is cut into a cushion body. There is a problem that the wreckage of the plate remains and a feeling of foreign matter is generated, and the seating comfort of the seat is remarkably reduced, and the shape of the plate is limited and the design of the groove is restricted. was there.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and eliminates meandering or misalignment of a skin material having an out-stitch decoration or the like formed in a deep groove portion of a cushion body. It can be adhered accurately in a perfectly aligned state, and it can exhibit excellent sitting comfort without leaving the remains of the positioning plate in the cushion body, and the shape of the deep groove part The present invention has been completed for the purpose of a method for skin-bonding an adhesive molding sheet, which can be arbitrarily manufactured and can be mass-produced at a low cost, and which allows a wide variety of sheet designs.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In the present invention, a skin material is adhered to a cushion body having a deep groove portion on its surface, a part of which is in contact with the groove bottom of the deep groove portion. In the skin adhering method of the adhesive molding sheet, which is pressure-bonded and integrated by the molding die as described above, the sewing machine is provided with a pressing die member made of a synthetic resin plate capable of intervening in the deep groove portion at a portion corresponding to the deep groove portion on the surface of the skin material. While sewn, the mold surface of the molding die is provided with a positioning groove for engaging and holding the base portion of the pressing die material, and the base material of the pressing die material is used for the positioning of the molding die. Set so that a part of the skin material is bulged by the tip of the pressing mold member that is engaged and held in the recessed portion, pressure bonding between the skin material and the cushion body is performed by the molding die, and the surface of the skin material after release. All of the pressure die materials that are sewn on the sewing machine The first aspect of the present invention is a method for adhering a skin of an adhesive molded sheet, characterized in that a part of the skin material is adhered to a groove bottom of the deep groove part on a cushion body having a deep groove part on the surface. In the skin adhering method of the adhesive molding sheet that is pressure-bonded and integrated by the molding die as described above, an out-stitch decoration is formed by sewing with a sewing machine at the center position of the groove bottom of the portion corresponding to the deep groove portion on the surface of the skin material. The base of the pressing mold material made of a synthetic resin plate that can intervene in the part is temporarily fixed using the outstitch decoration, while the base of the pressing mold material is engaged and held on the mold surface of the molding die. A groove for use is provided, and the skin material is set such that the base portion of the pressing mold material is engaged and held in the positioning recess of the molding die so that a part of the skin material is bulged by the tip of the pressing mold material. Done The second method is a method for adhering a skin of an adhesive molding sheet, characterized in that a pressure-bonding of a skin material and a cushion body is performed with a mold, and after pressing, all of the pressing mold material is removed leaving an out-stitch decoration of the skin material. In the invention, the method for adhering a skin to a cushion body having a deep groove portion on the surface, wherein a skin material is press-bonded and integrated by a molding die so that a part of the skin material is brought into close contact with the groove bottom of the deep groove portion. While the sewing machine is sewn by a double chain stitch method at the base of a pressing mold member made of a synthetic resin plate that can intervene in the deep groove portion at a groove bottom center position of a portion corresponding to the deep groove portion on the surface of the skin material, A positioning groove for engaging and holding the base of the pressing mold is provided on the mold surface of the molding die, and the skin material is held by the base of the pressing mold in the positioning recess of the molding die. The tip of the pressing die is Set so that a part of the skin material swells, press-bond the skin material and the cushion body with a molding die, and after releasing the sewing machine stitch of the skin material, remove all of the pressing mold material. A third invention is a method for adhering a skin of an adhesive molded sheet, which is characterized in that it is removed together with.

[0006]

Next, the present invention will be described in detail by taking as an example the case of manufacturing the illustrated automobile seat. In the figure, 1 is a cushion body made of polyurethane foam having a deep groove portion 2 provided on the surface thereof, and 3 is a skin material adhered to the cushion body 1. The skin material 3 of the example is a sewing cover having a single top plate made of a bonded skin material in which a backing material sheet is laminated on the back surface of the outer fabric, and the position corresponding to the deep groove portion 2 of the top plate portion. An out-stitch decoration 4 is sewn on the sewing machine, and a pressing mold member 5 made of a synthetic resin plate having a substantially V-shaped cross section capable of intervening in the deep groove portion 2 is simultaneously formed in the valley portion of the out-stitch decoration 4. It is temporarily fixed. Reference numeral 10 denotes a mold for bonding and integrating the skin material 3 to the cushion body 1. The mold 10 includes an elevating mold 10a for supporting the cushion body 1, and a fixed mold 10b for fixing the skin material 3 by a clamper 12. The mold surface of the molding die 10 is provided with a positioning recess 13 for engaging the pressing die material 5 in a portion corresponding to the deep groove portion 2 of the cushion body 1.

By the way, according to the present invention, as shown in FIG. 2, the skin material 3 is covered with an adhesive so as to cover the surface of the cushion body 1.
Is a method of integrally bonding with a molding die 10, in which the skin material 3 is set upside down on the fixed die 10b, and then the lifting die 10
This is the same as the conventional method for adhering the skin of this kind of adhesive molded sheet, except that the cushion material 1 supported by a is lowered and the skin material 3 is pressure-bonded integrally with the surface of the cushion body 1. As shown in FIG. 3, the skin material 3 has a synthetic resin plate having a substantially V-shaped cross section as a pressing die material 5 temporarily fixed to the portion of the outstitch decoration 4 on the surface thereof, and the leg portion 5a at the free end thereof. , 5a are held in the positioning recess 13 of the fixed mold 10b, the skin material 3 swells into a predetermined shape according to the shape of the pressing mold material 5 made of the synthetic resin plate, and the swelling thereof is performed. The out-stitch decoration 4 is always positioned on the center line of the projecting portion. And
When the elevating mold 10a descends in this state and the cushion body 1 and the skin material 3 are pressure-bonded together, the outer stitch material 4 having the out-stitch decoration 4 positioned at the center of the bulging portion has a bulging portion. It is firmly inserted into the deep groove portion 2 of the cushion body 1 via the pressing mold member 5 made of a synthetic resin plate having a force,
The out-stitch 4 is reliably bonded without being displaced or meandering from the center of the deep groove portion 2.

After the pressure-bonding of the skin material 3 to the surface of the cushion body 1 is completed in this way, when it is released from the mold by a normal means, the portion of the out-stitch decoration 4 is then removed as shown in FIG. The pressing mold member 5 is broken off as a boundary line, and two pressing mold members 5 made of a synthetic resin plate having a substantially V-shaped cross section are provided on both sides of the outstitch decoration 4 which is temporarily fixed to the skin member 3. Then, only the outstitch decoration 4 is left in the deep groove portion 2 and all the pressing mold material 5 made of a synthetic resin plate is completely removed. The pressing mold member 5 made of the synthetic resin plate is usually sewn with a pitch of about 7 mm, and the perforations of the out-stitch ornament 4 can be easily cut and removed, but can be cut more easily. To enable this, the sewing stitch pitch may be narrowed to, for example, about 4 mm, or a separate perforation for cutting may be formed.

The pressing mold member 5 made of a synthetic resin plate used in the present invention can be selected arbitrarily according to the shape of the deep groove portion 2 to be formed.
As shown in FIG. 5, a rounded tip is used for the deep groove portion 2 having a relatively wide width, and a sharp tip is used for the acute deep groove portion 2 as shown in FIG. It is sufficient to use a protruding barbecue. As for the engagement between the pressing die member 5 made of a synthetic resin plate and the fixed die 10b, as shown in FIG. 6, the fixed die 10b is provided with a convex alignment portion 13a and the alignment portion 13a is made of synthetic resin. It is also possible to perform the alignment by fitting between the leg portions 5a of the plate.

Further, as shown in FIG. 8, a pressing mold member 5 made of a synthetic resin plate is sewn on the skin member 3 by a double chain stitch method which allows the yarn to be easily pulled out from the front side.
After that, the skin material 3 is adhered to the cushion body 1 by the same means as in the above-mentioned embodiment, and after demolding, the double chain stitch portion is removed to remove the pressing die material 5 made of a synthetic resin plate together with the sewing thread. May be.

[0011]

As is apparent from the above description, according to the present invention, since the skin material can be adhered to the deep groove portion of the cushion body in a properly positioned state, the deep groove of the cushion body is previously attached to the skin material. Even if there is an outstitch decoration etc. located inside the part, it can be bonded without causing meandering or misalignment of the outstitch decoration etc., and the pressing mold material made of a synthetic resin plate is completely removed from the mold. Since it is removed, there is no remnant of the positioning plate in the cushion body and excellent sitting comfort can be exhibited, and the shape of the deep groove can be made arbitrary and the seat design It is possible to have a wide range. Therefore, the present invention, as a method for adhering the skin of an adhesive molded sheet that eliminates the conventional problems,
The areas that contribute to the development of industry are extremely large.

[Brief description of drawings]

FIG. 1 is a cutaway front view showing a molding process of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a main part in FIG.

FIG. 4 is a cutaway perspective view showing a synthetic resin plate.

FIG. 5 is a cross-sectional view of a main part showing another molding example.

FIG. 6 is a cross-sectional view of a main part showing another molding example.

FIG. 7 is a schematic cross-sectional view showing a step of removing a synthetic resin plate.

FIG. 8 is a schematic cross-sectional view showing another synthetic resin plate removing step.

[Explanation of symbols]

 1 Cushion 2 Deep groove 3 Skin material 4 Outstitch decoration 5 Press mold material made of synthetic resin plate 10 Mold

Claims (3)

[Claims] 1. A skin adhering method for an adhesive molding sheet, comprising a cushion body having a deep groove portion formed on its surface, and a press-molding integrally integrating a skin material with a molding die so that a part of the skin material is brought into close contact with the groove bottom of the deep groove portion. In the above, while a pressing mold member made of a synthetic resin plate that can intervene in the deep groove portion is sewn on a portion of the surface of the skin material corresponding to the deep groove portion, while the base of the pressing mold member is formed on the mold surface of the molding die. Is provided with a positioning groove for engaging and holding the base material of the pressing mold material in the positioning recess of the molding die so that the front surface of the pressing mold material is partially retained by the pressing mold material. Is set so as to swell, and the skin material and the cushion body are pressure-bonded with a molding die, and after release, all of the pressing mold material sewn on the sewing machine on the surface of the skin material is removed. Adhesive molded sheet skin adhesion method. 2. A skin adhering method for an adhesive molding sheet, wherein a cushion material having a deep groove portion formed on a surface thereof is pressure-bonded integrally by a molding die so that a part of the skin material is brought into close contact with a groove bottom of the deep groove portion. At the same time, a base of a pressing mold material made of a synthetic resin plate that can intervene in the deep groove portion is formed at the same time as forming an out-stitch decoration with a sewing machine at the center position of the groove bottom of a portion corresponding to the deep groove portion on the surface of the skin material. While temporarily fixing using a stitch decoration, a positioning groove for engaging and holding the base of the pressing mold is provided on the mold surface of the molding die, and this skin material is used as the base of the pressing mold. Is set in such a manner that it is engaged and held in the positioning recess of the molding die and a part of the skin material is bulged by the tip of the pressing die material, and pressure bonding between the skin material and the cushion body is performed by the molding die. , Of the skin material after release A method for adhering a skin of an adhesive molding sheet, characterized in that all of the pressing mold material is removed leaving an out-stitch decoration. 3. A skin adhering method for an adhesive molding sheet, wherein a skin material is press-bonded and integrated by a molding die so that a part of the skin material is adhered to a cushion body having a deep groove portion formed on the surface thereof up to the groove bottom of the deep groove portion. In the above, while the base of the pressing die material made of a synthetic resin plate capable of intervening in the deep groove portion is sewn by the double chain stitch method at the groove bottom center position of the portion corresponding to the deep groove portion on the surface of the skin material. , A positioning groove for engaging and holding the base of the pressing mold is provided on the mold surface of the molding die, and the base of the pressing mold is used to engage this skin material with the positioning recess of the molding die. Set so that a part of the skin material is held and bulged by the tip of the pressing mold material, pressurize and bond the skin material and the cushion body with a molding die, and remove the sewing machine sewing of the skin material after release. To remove all of the pressing mold material together with the thread A method for adhering a skin of an adhesive molded sheet, which is characterized in that