JPH10263223A - Die and method for molding seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve touch and appearance by preventing creases, thread appearance and joint line distortion or the like in groove parts at the joint sewing part of surface cover material by preventing the deviation of positions between the joint sewing part of surface cover material and the recessed groove of pad material when adhering the surface cover material and the pad material. SOLUTION: A projecting line part 12a is provided on a lower die 12 of molding die 11 and a set pin is provided at the projecting line part 12a. A surface cover material 2 has a joint sewing part 7 due to overlook sewing and along with the lengthwise direction of this joint sewing part 7, a linear member 9 is integrally sewn in the case of this overlook sewing. The joint sewing part 7 is arranged while facing the projecting line part 12a. On an upper die 13 of molding die 11, a pad material 3 is arranged while having a recessed groove 3a on the surface facing the projecting line part 12a. The position of linear member 9 at the joint sewing part 7 is regulated by being alternately locked by the plural set pins of projecting line part 12a.

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 in which the surface material is attached to the pad material by a reactive hot melt 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 reactive hot melt adhesive 5 previously applied to the pad material 3
Thus, the skin material 2 is bonded to the pad material 3.

The reactive hot-melt adhesive 5 previously applied to the pad material 3 is activated at a temperature of 100 ° C. or less, and is disclosed in Japanese Patent Publication No. 7-85757, Japanese Unexamined Patent Publication No. 5-766.
No. 64, 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. In addition, as shown in FIG. 5, the joint stitch portion 7 is formed only by the lock stitch,
The seam allowance of the seam material is 10mm and the sewing pitch is 5mm
Under the usual sewing conditions, wrinkles in the groove, thread appearance, distortion of the alignment line, and the like were apt to occur, and the touch and appearance could not be improved.

SUMMARY OF THE INVENTION It is an object of the present invention to prevent misalignment between a joint seam of a skin material and a concave groove of a pad material when bonding a skin material and a pad material. It is intended to provide a molding die and a molding method for a vehicle seat that can prevent wrinkles in the groove portion, yarn appearance, distortion of the alignment line, and the like, and can improve feel and appearance.

[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. A vehicle in which the pad material covered with the skin material is mounted on the other mold, the mold is closed, and the skin material is bonded to the pad material with a reactive hot melt adhesive previously applied to the pad material. In the forming die for the sheet for use, a ridge is provided on one of the dies, a plurality of set pins are provided on the tip side of the ridge, and a skin material is disposed on one of the dies having the ridge. A pad material having a concave groove on a surface facing the ridge portion is provided on the other mold of the molding die, and the skin material has a seam portion by overlock sewing, and the seam portion is formed by overlock sewing. Positioning can be controlled by a plurality of set pins of the ridge portion. Wherein the is Uninasa.

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. Clamping, in a mold for a vehicle sheet for bonding the skin material to the pad material with a reactive hot melt adhesive previously applied to the pad material, providing a ridge on one of the molds, A plurality of set pins are provided on the tip side of the ridge, and a pad material having a concave groove on the surface facing the ridge is provided on the other mold of the molding die, and the skin material is fitted by overlock sewing. A linear member having a sewn portion, and a linear member is integrally sewn along the longitudinal direction of the joint stitch portion at the time of the overlock sewing; To be able to regulate the position by alternately locking the pin Characterized in that it is.

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 of molding a vehicle sheet, the mold material is clamped, and the skin material is bonded to the pad material by a reactive hot melt adhesive previously applied to the pad material, wherein a protruding ridge is provided on one of the molds. A concave portion is formed at the tip end side of the ridge portion, and a pad material having a concave groove on a surface facing the ridge portion is provided on the other mold of the molding die, and the skin material is seamed by overlock sewing. A linear member is integrally sewn at the time of the overlock sewing along a longitudinal direction of the joint stitching portion, and the linear member of the joint stitching portion is formed on the distal end side of the protrusion. Position by inserting into the recessed part And after the bonding of the pad material, characterized in that removing the linear member.

According to a fourth aspect of the present invention, in the method for forming a vehicle seat, 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 of molding a vehicle sheet, the mold material is clamped, and the skin material is adhered to the pad material by a reactive hot melt adhesive previously applied to the pad material. A plurality of set pins are provided on the tip side of the strip, a pad material having a concave groove on the surface facing the protrusion is provided on the other mold of the molding die, and the skin material is seamed by overlock sewing. A linear member is integrally sewn at the time of the overlock sewing along a longitudinal direction of the joint stitching portion, and the linear member of the joint stitching portion is formed by a plurality of set pins of the protrusion. And the position is regulated by alternately locking the A groove in the surface of the pad member attached to said other mold and the lower mold protrusions are opposed disposed,
The method is characterized in that the forming die is clamped, and a joint stitch portion formed by overlock sewing of the skin material and a concave groove on the surface of the pad material are pressure-bonded.

According to the vehicle seat molding die of the first aspect of the present invention, a projection is provided on one of the molding dies, and a plurality of set pins are provided on the tip side of the projection. A skin material is provided on one mold having the ridge portion, and a pad material having a concave groove on a surface facing the ridge portion is provided on the other mold of the molding die, and the skin material is overlocked. It has a sewn seam by sewing, and the sewn seam can be disposed with its position regulated by the plurality of set pins of the protruding ridge portion. Since it is a seamed part by overlock sewing, it is possible to prevent wrinkles, thread appearance, distortion of seam lines, etc. of the seamed material and improve the feel and appearance. You can get a sheet.

According to the vehicle seat molding die of the second aspect of the present invention, a projection is provided on one of the molding dies, and a plurality of set pins are provided on the tip side of the projection. A pad material having a concave groove on the surface facing the ridge portion is disposed on the other mold of the molding die, and the skin material has a seam portion by overlock sewing, and in a longitudinal direction of the seam portion. A linear member is integrally sewn along the overlock sewing along the linear lock member so that the linear member of the joint stitch portion can be alternately locked to the plurality of set pins of the ridge portion to regulate the position. It is possible to prevent the skin material from being displaced by the set pin because it is made, and since it is the seam part by overlock sewing, the wrinkle, thread appearance and distortion of the seam line of the seam material To improve the feel and appearance It can be obtained a vehicle seat can.

According to the method of forming a vehicle seat according to the third aspect of the present invention, a protrusion is provided on one of the forming dies,
A concave portion is formed at the tip side of the ridge portion, and a pad material having a concave groove on a surface facing the ridge portion is provided on the other mold of the molding die, and the skin material is fitted by overlock sewing. A sewn portion, and a linear member is integrally sewn along the longitudinal direction of the combined stitch portion during the overlock sewing,
The linear member of the stitched portion is inserted into the concave portion formed on the tip side of the ridge portion to regulate the position, and after the skin material and the pad material are bonded, the linear member is removed. Positional deviation can be prevented by the linear member of the joint stitch part inserted into the concave part formed on the tip side of the protruding ridge part. It is possible to obtain a vehicle seat that can prevent wrinkles at the sewn portion, thread appearance, distortion of the alignment line, and the like, and can improve feel and appearance.

According to the method for forming a vehicle seat according to a fourth aspect of the present invention, a projection is provided on a lower die of a molding die, and a plurality of set pins are provided on a tip side of the projection. The skin material has a sewn portion by overlock sewing, and a linear member is integrally sewn along the longitudinal direction of the sewn portion at the time of the overlock sewing, and the linear member of the sewn portion is sewn. The position is regulated by alternately engaging the plurality of set pins of the ridge with the lower ridge of the molding die and the concave groove on the surface of the pad material attached to the other die. It is arranged, the mold is clamped, and the seam material is press-fitted to the seam material by overlock sewing and the concave groove on the surface of the pad material, so that the set material can be prevented from being displaced by the set pin. Can be made, and at the joint sewing part by overlock sewing Runode, wrinkles of the mating sewing portion of the skin material to prevent distortion of Itomie and mating line can be obtained a vehicle seat that can improve the feel and appearance.

[0015]

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.
FIGS. 3 (a) and 3 (b) show an embodiment of a molding die and a molding method for a vehicle seat according to the present invention, respectively. In this embodiment, a case where the invention is applied to a vehicle seat is shown. However, the present invention is not limited to this. Parts corresponding to the mold 11 and the vehicle seat 1 shown in FIGS. 6 and 7 will be described with the same reference numerals.

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

In the present embodiment, the reactive hot melt adhesive 5 is attached to either the pad material 3 or the skin material 2 attached to the lower mold 12 and the upper mold 13 of the molding die 11, respectively. Is applied in advance.

The reactive hot-melt adhesive 5 previously applied to the pad material 3 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. Hei 5-7666.
No. 4, for example, can be used.

A plurality of seam portions 7 are formed on the skin material 2. As shown in FIG. 2, the joint stitch portion 7 is formed by overlock sewing. At the time of forming the joint stitch portion 7 by the overlock sewing, a linear member 9 formed of a string, tengs, piano wire or the like having a diameter of about 1 mm along the longitudinal direction of the joint stitch portion 7.
Are sewn together.

A plurality of grooves 3a for forming patterns 8 are formed in the pad material 3 in correspondence with the seam portions 7 of the skin material 2. The lower mold 12 as a skin material set type has a plurality of ridges 12 a formed at positions corresponding to the seam portions 7 of the skin material 2.

Further, as shown in FIGS. 3 (a) and 3 (b), a plurality of set pins 21 are provided on the tip side of the plurality of ridges 12a of the lower die 12. In the present embodiment, the plurality of set pins 21 are fixedly provided. However, the plurality of set pins 21 may be provided on a movable plate (not shown) so that the set pins 21 can be moved up and down by up and down means.

The seam material 2 is sewn to the lower mold 12
When arranging along the protruding ridges 12a formed on the protruding ridges 12a, the linear members 9 of the matching sewn portions 7 are alternately engaged with the plurality of set pins 21 of the protruding ridges 12a in and out so as to perform the joint sewing. The position of the part 7 is regulated.

The joint stitch portion 7 of the skin material 2 is
After arranging along the protruding ridges 12a formed in the above, if the lower mold 12 and the upper mold 13 of the molding die 11 are clamped, the joint stitch portion 7 of the skin material 2 and the concave groove of the pad material 3 are formed. 3a can be adhered in a state where the position is reliably regulated. The 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.

As shown in FIG. 4, instead of providing a plurality of set pins 21 on the tip side of the plurality of ridges 12a of the lower mold 12, a concave portion 23 is formed on the tip side of the ridge 12a. The position can also be regulated by inserting the linear member 9 of the joint stitch portion 7 into the concave portion 23 together with the joint stitch portion 7. Further, after the skin material 2 and the pad material 3 are bonded, the linear member 9 can be removed, or the shape of the linear member 9 can be increased by leaving the linear member 9 inserted without being removed.

According to such a configuration, the displacement of the skin material 2 can be prevented by the linear member 9 of the seam 7 to be inserted into the concave portion 23 formed on the distal end side of the ridge 12a. And the seam 7 is formed by overlock sewing, so that wrinkles, thread appearance and distortion of the seam of the seam 7 of the skin material 2 can be prevented, and the feel and appearance can be improved. Can be obtained.

[0026]

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 is provided, a plurality of set pins are provided on the tip side of the ridge, a skin material is provided on one mold having the ridge, and the ridge is provided on the other mold of the molding die. A pad material having a concave groove is provided on an opposing surface, and the skin material has a joint stitch portion by overlock sewing, and the position of the joint stitch portion is regulated by a plurality of set pins of the protrusion. It can be installed, so the position of the skin material can be prevented from being displaced by the set pin, and since it is a seam joint by overlock sewing, wrinkles and thread appearance of the seam material seam And to prevent distortion of the alignment line,
A vehicle seat capable of improving the feel and appearance can be obtained.

According to the vehicle seat molding die of the second aspect of the present invention, a projection is provided on one of the molding dies, and a plurality of set pins are provided on the tip side of the projection. A pad material having a concave groove on the surface facing the ridge portion is disposed on the other mold of the molding die, and the skin material has a seam portion by overlock sewing, and in a longitudinal direction of the seam portion. A linear member is integrally sewn along the overlock sewing along the linear lock member so that the linear member of the joint stitch portion can be alternately locked to the plurality of set pins of the ridge portion to regulate the position. It is possible to prevent the skin material from being displaced by the set pin because it is made, and since it is the seam part by overlock sewing, the wrinkle, thread appearance and distortion of the seam line of the seam material To improve the feel and appearance It can be obtained a vehicle seat can.

According to the method of forming a vehicle seat according to the third aspect of the present invention, a protrusion is provided on one of the forming dies,
A concave portion is formed at the tip side of the ridge portion, and a pad material having a concave groove on a surface facing the ridge portion is provided on the other mold of the molding die, and the skin material is fitted by overlock sewing. A sewn portion, and a linear member is integrally sewn along the longitudinal direction of the combined stitch portion during the overlock sewing,
The linear member of the stitched portion is inserted into the concave portion formed on the tip side of the ridge portion to regulate the position, and after the skin material and the pad material are bonded, the linear member is removed. Positional deviation can be prevented by the linear member of the joint stitch part inserted into the concave part formed on the tip side of the protruding ridge part. It is possible to obtain a vehicle seat that can prevent wrinkles at the sewn portion, thread appearance, distortion of the alignment line, and the like, and can improve feel and appearance.

According to the method of forming a vehicle seat according to a fourth aspect of the present invention, a projecting portion is provided on a lower mold of a molding die, and a plurality of set pins are provided on a tip side of the projecting portion. The skin material has a sewn portion by overlock sewing, and a linear member is integrally sewn along the longitudinal direction of the sewn portion at the time of the overlock sewing, and the linear member of the sewn portion is sewn. The position is regulated by alternately engaging the plurality of set pins of the ridge with the lower ridge of the molding die and the concave groove on the surface of the pad material attached to the other die. It is arranged, the mold is clamped, and the seam material is press-fitted to the seam material by overlock sewing and the concave groove on the surface of the pad material, so that the set material can be prevented from being displaced by the set pin. Can be made, and at the joint sewing part by overlock sewing Runode, wrinkles of the mating sewing portion of the skin material to prevent distortion of Itomie and mating line can be obtained a vehicle seat that can improve the feel and appearance.

According to the present invention, when the skin material and the pad material are bonded to each other, it is possible to prevent the misalignment between the joint stitch portion of the skin material and the concave groove of the pad material. The molding die and the molding method of the vehicle seat which can prevent the wrinkles of the groove portion, the thread appearance, the distortion of the alignment line, etc., and improve the feel and appearance can be obtained.

[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, and a pad material is provided on an upper mold.

FIG. 2 is a partially enlarged sectional view of a skin material used in a molding method and a molding method for a vehicle seat according to the present invention.

3A and 3B show a molding die and a molding method for a vehicle seat according to the present invention, wherein FIG. 3A is a perspective view of a set pin of a lower ridge, and FIG. 3B is a perspective view of a lower ridge. FIG. 4 is a partially enlarged cross-sectional view showing a state in which linear members of a joint seam portion formed by overlock sewing of a skin material are alternately locked to set pins.

FIG. 4 is a partially enlarged cross-sectional view of a ridge portion of a lower die, showing a different embodiment of a molding die and a molding method for a vehicle seat according to the present invention.

FIG. 5 is a partially enlarged cross-sectional view of a joint stitch portion of a skin material of a conventional vehicle seat.

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]

 DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Skin material 3 Pad material 3a Depressed groove 5 Adhesive 7 Seam stitching part 8 Pattern 9 Linear member 11 Mold 12 Lower mold 12a Protrusion 13 Upper mold 21 Set pin 23 Concave part

Claims (4)

[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 vehicle seat mold for clamping the molding die and bonding the skin material to the pad material with a reactive hot melt adhesive pre-applied to the pad material, a ridge portion is provided on one of the molding dies. A plurality of set pins are provided on the tip side of the ridge, a skin material is provided on one of the molds having the ridge, and a surface facing the ridge is provided on the other mold of the molding die. A pad material having a concave groove is arranged, and the skin material has a joint stitch portion by overlock sewing,
A molding die for a vehicle seat, characterized in that the joint stitch portion can be disposed with its position regulated by a plurality of set pins of the ridge portion. 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 a reactive hot melt adhesive pre-applied to the pad material, a ridge portion is provided on one of the molding dies. Is provided, a plurality of set pins are provided on the tip side of the ridge, a pad material having a concave groove on a surface facing the ridge is provided on the other mold of the molding die, and the skin material is over A linear member having a seam portion formed by lock sewing, wherein a linear member is integrally sewn along the longitudinal direction of the seam portion at the time of the overlock sewing; Wherein the plurality of set pins are alternately locked to control the position. 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 molding a vehicle sheet, the molding die is clamped, and the skin material is bonded to the pad material by a reactive hot melt adhesive previously applied to the pad material, wherein a ridge portion is provided on one of the molding dies. A concave portion is formed on the tip side of the ridge portion, and a pad material having a concave groove on the surface facing the ridge portion is provided on the other mold of the molding die, and the skin material is overlocked. Has a tailored seam part by sewing,
A linear member is sewn integrally along the longitudinal direction of the joint stitch portion during the overlock sewing, and the linear member of the joint stitch portion is inserted into a concave portion formed at the tip end side of the protrusion. A method for forming a vehicle seat, wherein the linear member is removed after the position is regulated and the skin material and the pad material are bonded to each other. 4. 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 the method of molding a vehicle sheet, the molding die is clamped, and the skin material is adhered to the pad material with a reactive hot melt adhesive previously applied to the pad material. A plurality of set pins are provided on the tip side of the ridge, and a pad material having a concave groove on a surface facing the ridge is provided on the other mold of the molding die, and the skin material is overlocked. A stitch portion formed by sewing; a linear member is integrally sewn along the longitudinal direction of the stitch portion at the time of the overlock sewing; and the linear member of the stitch portion is attached to the ridge portion. The position is regulated by alternately engaging a plurality of set pins, and the protrusion of the lower mold of the molding die and the concave groove on the surface of the pad material attached to the other mold are arranged so as to face each other. Tighten the mold and adjust the skin material by overlock sewing A method for forming a vehicle seat, comprising: pressing a seam portion and a concave groove on a surface of a pad material by pressure.