JPH10263221A - Die and method for molding seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a die and a method for molding seat for vehicle with which touch and appearance can be improved by preventing the deviation of positions between the joint sewing part of surface cover material and the recesssed groove of pad material when adhering the surface cover material and the pad material. SOLUTION: A lower die 12 of molding die 11 is provided with a projecting line part 12a, and the projecting line part 12a is provided with a set pin 21 so as to freely move back and forth. A surface cover material 2 has a joint sewing part 7, and the joint sewing part 7 is arranged while facing the projecting line part 12a. The surface cover material 2 is pressed to the side of lower die 12 by a presser jig, and the set pin 21 of projecting line part 12a is pierced through the surface cover material 2 in the state of pressing the surface cover material 2 with the presser jig. While removing the presser jig and regulating the position of surface cover material 2 with the set pin 21, the molding die 11 is fastened. The surface cover material 2 and a pad material 3 are press- contacted through an adhesive 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding die and a molding method for a vehicle seat. More specifically, a skin material is attached to one of the molding dies, and a pad material covered with the skin material is used for the other. The present invention relates to a molding method and a molding method for a vehicle seat, wherein the molding material is attached to the molding material, the molding material is clamped, and the skin material is adhered to the pad material with an adhesive previously applied to the pad material.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a seat 1 for a vehicle or the like has a skin material 2 attached to a lower mold 12 which is a skin material set mold of a molding die 11, and a pad covered with the skin material 2. The material 3 is attached to an upper mold 13 which is a pad material set mold, the lower mold 12 and the upper mold 13 of the molding mold 11 are clamped, and the skin material 2 is coated with the adhesive 5 previously applied to the pad material 3.
Is adhered to the pad material 3.

As the adhesive 5 previously applied to the pad material 3, a reactive hot melt adhesive or the like is used. This reactive hot melt adhesive is activated at a temperature of 100 ° C. or lower, and is disclosed in JP-B-7-85757, JP-A-5-85757.
76664 and the like.

In the case where the seam portion 7 is formed on the skin material 2, the seam portion 7 is disposed along the ridge 12 a formed on the lower mold 12, and the seam portion 7 is formed. 7 is formed on the surface of the sheet as shown in FIG. As a means for maintaining the arrangement state of the skin material 2, a method of providing a pressing jig so as to be able to move up and down and forming a design groove as a pattern along a concave groove 3a formed in the pad material 3 is disclosed in 4-36
No. 1021.

[0005]

However, when the sewing portion 7 is formed on the skin material 2 of the conventional sheet 1, the skin material 2 and the pad material 3 are connected to the lower mold 12 and the upper mold 12 of the molding die 11. Even if the skin material 2 is arranged along the ridge 12a when the lower mold 12 and the upper mold 13 are clamped after being attached to the mold 13, respectively, the sheet 1 is likely to be displaced.
The wrinkles and the like may occur on the skin material 2 of the above, and the appearance may be deteriorated. Also, in the method of forming the design groove as the pattern 8 by providing the indentation jig so as to be able to move up and down, it is difficult to return the skin material 2 once shifted to the correct original position, and the workability is poor. Was.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the feel and appearance without causing a displacement of a joint seam of a skin material from a concave groove of a pad material when bonding a skin material and a pad material. An object of the present invention is to provide a molding method and a molding method for a vehicle seat that can be performed.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a vehicle seat forming die according to the first aspect of the present invention has a structure in which a skin material is used as one of the forming dies. Mounting, mounting the pad material covered with the skin material to the other mold, clamping the molding die, and bonding the skin material to the pad material with an adhesive previously applied to the pad material, forming a vehicle seat In the mold, a ridge is provided on one of the molding dies, and a set pin is provided on the ridge so as to be able to advance and retreat,
The position of the skin material can be regulated by a set pin of the projection.

According to a second aspect of the present invention, there is provided a vehicle seat molding die, wherein a skin material is attached to one of the molding dies, and a pad material covered by the skin material is attached to the other mold. In a molding die for a vehicle seat in which a mold is clamped and the skin material is adhered to the pad material with an adhesive previously applied to the pad material, a plurality of projections are provided in one of the molding dies, A plurality of set pins are provided on the tip side of the portion so as to be able to advance and retreat, the skin material has a joint stitch portion, and the position of the joint stitch portion can be regulated by the plurality of set pins of the protrusion. It is characterized by the following.

According to a third aspect of the present invention, there is provided a method for forming a vehicle seat, comprising: attaching a skin material to one of the molds; attaching a pad material covered by the skin material to the other mold; In a method for forming a vehicle seat, the mold material is clamped and the skin material is bonded to the pad material with an adhesive previously applied to the pad material. A set pin is freely provided, the skin material has a sewn portion, the sewn portion is arranged corresponding to the ridge portion, and the skin material is pressed to a lower mold side by a holding jig, The set pin of the ridge portion is pierced into the skin material in a state where the skin material is pressed by the holding jig, and then the holding jig is removed, and the position of the skin material is regulated by the set pin. Tighten and press the skin material and the pad material It is characterized in.

According to the molding die for a vehicle seat according to the first aspect of the present invention, a projection is provided on one of the molding dies, and a set pin is provided on the projection so as to be able to advance and retreat, and the skin is provided. Since the position of the material can be regulated by the set pins of the ridges, the set pins can prevent the skin material from being displaced.

According to the second aspect of the present invention, a plurality of ridges are provided on one of the dies, and a plurality of ridges are provided on the tip side of the ridges so as to be able to advance and retreat. A set pin is provided, and the skin material has a sewn portion, and the position of the sewn portion can be regulated by the plurality of set pins of the ridge portion. The displacement can be prevented by the plurality of set pins.

According to the method for forming a vehicle seat according to the third aspect of the present invention, a projection is provided on a lower die of a molding die, and a set pin is provided on the projection so as to be able to advance and retreat, and the skin material is provided. Has a joint stitch portion, the joint stitch portion is disposed corresponding to the ridge portion, the skin material is pressed to the lower mold side by a holding jig, and the skin material is pressed by the holding jig. In this state, the set pin of the ridge portion is pierced into the skin material, then the holding jig is removed, and the position of the skin material is regulated by the set pin, and the molding die is clamped. Since the crimping is performed, it is possible to prevent the position of the joint seam of the skin material from being shifted by the holding jig and the set pin.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a molding die and a molding method for a vehicle seat according to the present invention will be described in detail with reference to the drawings. FIG.
5 (a) and 5 (b) show an embodiment of a molding die and a molding method for a vehicle seat according to the present invention. In this embodiment, a case where the invention is applied to a vehicle seat is described. However, the present invention is not limited to this. Parts corresponding to the molding die and the vehicle seat shown in FIGS. 6 and 7 are denoted by the same reference numerals and described.

As shown in FIG. 1, the skin material 2 is attached to a lower mold 12 as a skin material set mold, which is one of the molds 11. Further, a pad material 3 covered with the skin material 2
As shown in FIG. 5A, is mounted on an upper mold 13 as a pad material set mold, which is the other mold.

In the present embodiment, an adhesive 5 is applied to the pad material 3 in advance in one of the pad material 3 and the skin material 2 attached to the lower mold 12 and the upper mold 13 of the molding die 11, respectively. .

The adhesive 5 previously applied to the pad material 3 is a reactive hot melt adhesive or the like. This reactive hot-melt adhesive is activated at a temperature of about 60 ° C. and is disclosed in Japanese Patent Publication No. 7-85757 and Japanese Patent Application Laid-Open No. 5-766.
No. 64 can be used.

A plurality of joint stitch portions 7 are formed in the skin material 2, and a plurality of concave grooves 3 a for forming a pattern 8 are formed in the pad material 3 in correspondence with the joint stitch portions 7 of the skin material 2. ing. The lower mold 12 as a skin material set mold includes
A plurality of ridges 12a are formed at positions corresponding to the seam 7 of the skin material 2.

As shown in FIG. 1, a plurality of set pins 21 are provided below the plurality of ridges 12a of the lower mold 12 so as to be able to advance and retreat through a through hole 15 formed at the tip end of the ridge 12a. Is provided. The plurality of set pins 21 are attached to the movable plate 2
The movable plate 23 is mounted on a movable rod 25a such as a fluid pressure cylinder 25 serving as a vertical elevating means.

The joint stitch portion 7 of the skin material 2 is
When the plurality of set pins 21 are arranged along the protruding ridges 12a, the plurality of set pins 21 are retracted below the plurality of protruding ridges 12a.

The joint stitch portion 7 of the skin material 2 is
After being arranged along the ridges 12a formed as shown in FIG. 2, the skin material 2 is pressed toward the lower mold 12 by a holding jig 31 to regulate the position of the skin material 2 as shown in FIG.

In a state where the skin material is pressed by the holding jig 31, as shown in FIGS. 3 (a) and 3 (b), the set pin 2 is inserted through the through hole 15 formed at the tip end of the ridge 12a.
1 is pierced into the skin material 2. In addition, a through hole through which the set pin 21 is inserted may be formed in the holding jig 31 facing the tip of the set pin 21.

Next, as shown in FIG. 4, the holding jig 31 is removed, and the position of the skin material is regulated by the set pins 21. Then, as shown in FIGS. The lower mold 12 and the upper mold 13 are clamped, and the stitching portion 7 of the skin material 2 and the concave groove 3a of the pad material 3 are adhered in a state where their positions are surely regulated. An adhesive 5 such as a reactive hot melt adhesive previously applied to the pad material 3.
Is activated at a temperature of about 60 ° C.

When the lower mold 12 and the upper mold 13 of the molding die 11 are clamped, the movable rod 2 of the fluid pressure cylinder 25 is closed.
5a is lowered, and the movable plate 23 and the plurality of set pins 21
Is lowered, and the through-hole 1 formed on the tip side of the ridge 12a is lowered.
It is assumed that a plurality of set pins 21 are pulled out from the position No. 5.

[0024]

As described above, the mold and method for forming a vehicle seat according to the present invention are described. According to the mold for forming a vehicle seat according to the first aspect of the present invention, one of the molds is used. A ridge portion is provided, and a set pin is provided on the ridge portion so as to be able to advance and retreat, and the position of the skin material can be regulated by the set pin of the ridge portion. It can be prevented by the set pin.

According to the vehicle seat molding die of the second aspect of the present invention, one of the molding dies is provided with a plurality of ridges, and a plurality of ridges are provided on the tip side of the ridges so as to be able to advance and retreat. A set pin is provided, and the skin material has a sewn portion, and the position of the sewn portion can be regulated by the plurality of set pins of the ridge portion. The displacement can be prevented by the plurality of set pins.

According to the method for forming a vehicle seat according to the third aspect of the present invention, a projection is provided on a lower die of a molding die, and a set pin is provided on the projection so as to be able to advance and retreat. Has a joint stitch portion, the joint stitch portion is disposed corresponding to the ridge portion, the skin material is pressed to the lower mold side by a holding jig, and the skin material is pressed by the holding jig. In this state, the set pin of the ridge portion is pierced into the skin material, then the holding jig is removed, and the position of the skin material is regulated by the set pin, and the molding die is clamped. Since the crimping is performed, it is possible to prevent the position of the joint seam of the skin material from being shifted by the holding jig and the set pin.

According to the present invention, when the skin material and the pad material are bonded to each other, the joint and sewn portion of the skin material do not displace from the concave groove of the pad material, and the feel and appearance can be improved. It is possible to obtain a molding die and a molding method for a vehicle seat that can be formed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a skin material is provided on a lower mold of a molding die of a vehicle seat and a molding method according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which a skin material is provided on a lower mold of a molding die of a vehicle seat and a molding method according to the present invention, and a position is regulated by a holding jig.

3A and 3B show a molding die and a molding method of a vehicle seat according to the present invention, wherein FIG. 3A is a cross-sectional view of a state where a set pin of a ridge portion of a lower die is pierced into a skin material, and FIG. FIG. 2A is a partially enlarged cross-sectional view of a portion indicated by A in FIG.

FIG. 4 is a cross-sectional view showing a molding die and a molding method for a vehicle seat according to the present invention, with a holding jig removed;

5A and 5B show a molding die and a molding method for a vehicle seat according to the present invention, wherein FIG. 5A is a cross-sectional view showing a state where the molding die is clamped, and FIG. 5B is a partially enlarged cross-sectional view of FIG. .

FIG. 6 is a cross-sectional view showing a molding die for a conventional vehicle seat.

FIG. 7 is a perspective view of a conventional vehicle seat.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 vehicle seat 2 skin material 3 pad material 3 a groove 5 adhesive 7 stitching part 8 pattern 11 molding die 12 lower die 12 a ridge 13 upper die 15 through hole 21 set pin 23 movable plate 25 fluid pressure cylinder 25 a movable Rod 31 holding jig

Claims (3)

[Claims] 1. A skin material is attached to one of molds, and a pad material covered with the skin material is attached to the other mold.
In a mold for a vehicle sheet, the mold is clamped, and the skin material is adhered to the pad material with an adhesive previously applied to the pad material, wherein one of the molds is provided with a ridge. A mold for a vehicle seat, wherein a set pin is provided on the ridge so as to be able to move forward and backward, and the position of the skin material can be regulated by the set pin of the ridge. 2. A skin material is attached to one of the molds, and a pad material covered by the skin material is attached to the other mold.
In a vehicle seat mold for clamping the molding die and bonding the skin material to the pad material with an adhesive previously applied to the pad material, one of the molding dies is provided with a plurality of protrusions. A plurality of set pins are provided on the tip side of the ridge so as to be able to advance and retreat, and the skin material has a joint stitch, and the position of the joint stitch can be regulated by the plurality of set pins of the protrusion. A molding die for a vehicle seat, wherein the molding die is formed in a vehicle. 3. A skin material is attached to one of the molds, and a pad material covered by the skin material is attached to the other mold.
In a method for forming a vehicle sheet, the mold is closed, and the skin material is adhered to the pad material with an adhesive previously applied to the pad material. A set pin is provided on the ridge portion so as to be able to move forward and backward, the skin material has a joint stitch portion, the joint seam portion is arranged corresponding to the protruding ridge portion, and the skin material is pressed by a holding jig to a lower mold side. In a state in which the skin material is pressed by the holding jig, the set pin of the ridge portion is pierced into the skin material, and then the holding jig is removed, and the position of the skin material is regulated by the set pin. A method for forming a vehicle seat, comprising clamping a forming die and pressing a skin material and a pad material together.