JPS6129248B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for manufacturing seat covers for vehicle seats, household seats, etc.

2. Description of the Related Art Conventionally, some seat covers for automobiles and the like are formed by attaching an elastic sheet made of urethane or the like formed to an appropriate thickness to the lower surface of a skin made of leather or synthetic resin. In addition, when forming an uneven pattern on this seat cover, a part of the elastic sheet is compressed using a press or the like, or a portion where a concave portion is to be formed is burnt out using a hot wire or the like. When forming a large number of uneven patterns, the elastic sheet corresponding to the recesses is wasted, which is extremely uneconomical, and when forming a seat cover, the outer skin and elastic sheet are wasted. Unless the sheet, backing material, etc. are temporarily bonded to each other by adhesive or sewing, they may become misaligned, making the bonding process complicated and making it impossible to efficiently manufacture the seat cover.

The object of the present invention is to be able to form an uneven pattern by effectively utilizing urethane, etc. that constitutes an elastic sheet, to avoid wasting the use of urethane, adhesive, etc., and to be extremely economical. To provide a method and device for manufacturing seat covers for vehicle seats, etc. that can improve work efficiency.
This will become clear from the detailed description below with reference to the drawings.

FIG. 1 schematically shows an embodiment of the apparatus for manufacturing seat covers such as vehicle seats according to the present invention, in which a series of elastic sheets 2 made of urethane, etc.
A first sheet storage section 1 for winding the sheet, and a second sheet storage section 3 for supplying the band-shaped elastic sheet 5.
In this embodiment, a series of elastic sheets 4 are initially used, and the elastic sheets 4 supplied from the second sheet storage section 3 are first and second sheets connected to a drive source (not shown). A cutter mechanism 10 provided between the pair of rollers 7 and 8 cuts the elastic sheet 5 into a band-shaped elastic sheet 5 while being transported in the direction of arrow A. The width of the elastic sheet 4 supplied from the second sheet storage section 3 is shorter than the width of the series of elastic sheets 2 supplied from the first sheet storage section 1, and the cutter mechanism 10 The elastic band sheet 5 is cut into strip-like elastic sheets 5 having a desired width according to the number and spacing of the cutters 11 provided in the cutter mechanism 10. Furthermore, cutter mechanism 1
The cutter 11 of 0 can use not only a cutter but also a high frequency.

The band-shaped elastic sheet 5 cut and formed by the cutter mechanism 10 is transported in the direction of arrow B by the second roller 8, as shown in FIGS. 8 as a guide mechanism, while maintaining a predetermined interval.
A first sheet storage section 1 is provided in front of the , a series of elastic sheets 2 is supplied from the first sheet storage section 1, and the band-shaped elastic sheet 5 is placed on the series of elastic sheets 2. It is placed and transported in the direction of arrow B.

FIG. 4 shows a cross section of a plurality of band-shaped elastic sheets 5 placed on a series of elastic sheets 2, and in this state, when they are transferred below the point bonding mechanism 13. Then, the driving of the first and second rollers 7 and 8 as the driving portion of the transfer mechanism is stopped, and the point adhesion mechanism 13 adheres the series of elastic sheets 2 and the band-shaped elastic sheets 5 to the contact surfaces. Agent 1
6 is applied in dots. The dot adhesion mechanism 13 has a storage tank 14 containing adhesive 16 as shown in FIG.
and the injection needle 1 attached to this storage tank 14.
5, the storage tank 14 is held by a vertical lifting mechanism (not shown), and when the storage tank 14 is lowered and the tip of the injection needle 15 reaches the contact surface, the injection needle 15 The adhesive 16 is poured out from the tip (see FIG. 6).

By point adhesion by the point adhesion mechanism 13, an elastic sheet 18 having an uneven pattern is formed by a series of elastic sheets 2 and band-shaped elastic sheets 5, and then this elastic sheet 18 is formed with an uneven pattern as shown in FIG. A skin 22 is supplied to the top surface of the sheet 18 from a skin storage section 21, and a backing material 25 is supplied to the back surface from a backing material storage section 24'. The three-layer laminated state consisting of the materials 25 is transferred in the direction of arrow C by a pair of third rollers 9, and when the three-layered state is located below the joining mechanism 30 of the three-layered state, the three-layered state is joined (the third (See Figure 8). This joining mechanism 30 is constructed by a conventionally known high frequency sewing machine using high frequency, a quilt sewing machine, a heated press, or the like. This joining mechanism 30 is configured to operate while the skin 22, elastic sheet 18, and backing material 25 are being transported in the direction of arrow C by the third roller 9, and is configured to operate while the skin 22, elastic sheet 18, and backing material 25 are being transported in the direction of arrow C, and is connected to both sides of the concave portion 33 of the uneven pattern. A joint portion 35 is formed along the longitudinal direction of the portion.

In the above embodiment, the first, second, and third rollers 7, 8, and 9 were used to configure the transfer mechanism, but it is also possible to use a belt conveyor in combination, and the second roller 8 is provided with a guide mechanism. Although the small diameter portion 8a is formed as a small diameter portion 8a, a guide member such as a guide rail may also be used.
Instead of moving the storage tank 14 up and down, it is also possible to move only the injection needle 15 up and down, and the adhesive 16 poured out from the tip of the injection needle 15 is applied in dots. In addition to being applied along the center of one elastic band sheet 5, it may be applied along both sides in the longitudinal direction, or it may be applied randomly. .

According to the above configuration, a series of elastic sheets 2 of a predetermined width are stored in the first sheet storage section 1, and a series of elastic sheets 2 stored in the first sheet storage section 1 are stored in the second sheet storage section 3. A series of elastic sheets 4 narrower than the elastic sheet 2 are stored, and the series of elastic sheets 4 supplied from the second sheet storage section 3 are cut by a cutting mechanism 10 to form a band-shaped elastic sheet 5. forming, by the first and second rollers 7 and 8,
The point bonding mechanism 1 is formed by bringing the band-shaped elastic sheets 5 into contact with the series of elastic sheets 2 in parallel in a predetermined relationship.
3, and the band-shaped elastic sheet 5 and the series of elastic sheets 2 are point-bonded by the point bonding mechanism 13 to form an elastic sheet 18 having an uneven pattern.
The outer skin 2 is formed from the outer skin storage section 21 on the front side of the elastic sheet 18 having the uneven pattern.
2, a backing material 25 is supplied to the back side from the back lining material storage section 24, and the three-layer laminated state is transferred to a joining mechanism 30 composed of a high-frequency sewing machine or the like, thereby forming an elastic material with an uneven pattern. body sheet 18
A seat cover having a concavo-convex pattern is formed, in which a skin 22 is bonded to the front side and a backing material 25 is bonded to the back side.

Incidentally, as shown in FIG. 9, the above-mentioned cutting mechanism 10
The band-shaped elastic sheet 5 formed in the band shape is stored in advance in the second sheet storage section 3, and the band-shaped elastic sheet 5 is stored in the second sheet storage section 3.
is placed on a series of elastic sheets 2 supplied from the first sheet storage section 1, and transported in the direction of the point bonding mechanism 13 and the joining mechanism 30 in the same manner as described above. It is possible to form a seat cover having an uneven pattern similar to the above.

According to the manufacturing method and the manufacturing apparatus for a seat cover such as a vehicle seat according to the present invention, when forming an uneven pattern using an elastic sheet, the elastic sheet is placed in the portion corresponding to the concave portion from the beginning. There is no need to remove the part corresponding to the recess by pressing or hot wire cutting, etc., and the elastic sheet is not wasted, and the series of elastic sheets and band-shaped elastic sheets are It is bonded with adhesive applied in a shape, so the amount of adhesive used can be saved, and it is extremely economical. It has various effects such as being able to form a seat cover having an uneven pattern by bonding accurately and quickly.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing one embodiment of the manufacturing apparatus for a seat cover such as a vehicle seat according to the present invention, and FIG. 2 is a plan view showing a state in which a band-shaped elastic sheet is formed by a cutting mechanism. FIG. 3 is a schematic perspective view of a second roller equipped with a guide mechanism;
Fig. 4 is a sectional view taken along the - line in Fig. 1, Fig. 5 is a schematic explanatory diagram of the dot adhesion mechanism, Fig. 6 is a sectional explanatory view showing the dot adhesion state, and Fig. 7 is a - line sectional view in Fig. 1. 8 is a sectional view taken along the line -- in FIG. 1, and FIG. 9 is a schematic explanatory diagram of a seat cover manufacturing apparatus showing a different embodiment of the present invention. In the figure, 1... a first sheet storage section, 2... a series of elastic sheets, 3... a second sheet storage section, 4... a series of elastic sheets, 5... a band-shaped elastic sheet, 7,
8, 9...Roller, 10...Cut mechanism, 13...Point adhesion mechanism, 14...Storage tank, 15...Injection needle, 16
...Adhesive, 18...Elastic sheet having an uneven pattern, 21...Skin storage section, 22...Skin, 24
...Backing material storage section, 25...Backing material, 30...Joining mechanism.

Claims (1)

[Claims] 1. At least one belt-shaped elastic sheet is successively placed at a predetermined position on a series of elastic sheets to form a concave-convex pattern, and is applied in the direction of the skin storage section and the backing material storage section. While transporting, adhesive is applied in dots on the contact surfaces of the series of elastic sheets and the band-shaped elastic sheet, and the series of elastic sheets and the band-shaped elastic sheet are dot-bonded to form an uneven shape. a step of fixing the pattern; and a step of fixing the skin along one side of the elastic sheet having an uneven pattern formed by the series of elastic sheets and the band-shaped elastic sheet.
A step of supplying the backing material from the skin and the backing material storage section along the other side, and then joining the skin and the backing material to each other in the recesses of the pattern of projections and depressions using a joining means. A method of manufacturing a seat cover for a vehicle seat, etc., characterized by continuously forming a seat cover having a pattern. 2. The first part in which a series of elastic sheets is wound and stored.
a second sheet storage section for wrapping and storing a band-shaped elastic sheet; and a sheet storage section for wrapping a skin provided on the side to which sheets are supplied from the first and second sheet storage sections. The second sheet storage section has an outer skin storage section for storing the lining material and a lining material storage section for storing the lining material wrapped therein. a guide mechanism for placing the band-shaped elastic sheet supplied from the section at a predetermined position; and a point-adhering mechanism for point-bonding the series of elastic sheets and the band-shaped elastic sheet to each other to fix the uneven pattern. and the first and second
a transfer mechanism for transporting the elastic sheet and the band-shaped elastic sheet from the sheet storage section toward the skin and backing material storage section; an injection needle attached thereto, a skin and a backing material are laminated on the uneven pattern made of the elastic sheet and the band-shaped elastic sheet, and the skin, the elastic sheet, and the backing material are laminated in the recesses of the uneven pattern. A manufacturing device for manufacturing seat covers for vehicle seats, etc., characterized in that it is equipped with a joining mechanism for joining materials.