JP3598560B2 - Resin wire for pad insert - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a pad insert resin wire embedded in a seat cushion to hang a seat cover of a seat on a mold urethane pad side.
[0002]
[Prior art]
Conventionally, for example, as shown in FIG. 7, a seat cushion 1 of a seat comprises a molded urethane pad 8 and a seat cover 2 covering the same, and this seat cover 2 is separated from left and right skin pieces 3a, 3b, 3c located at the center. The outer skin pieces 3d and 3e and the outer skin pieces 3f enclosing the four sides are sewn as shown in the drawing to form a substantially bag-like shape, and a substantially U-shaped sewn portion 4a is formed of the sewn portions. Hanging bags 5a and 5b are sewn together with the linear sewing portion 4b, and a hanging wire 6 is inserted. The sewing portions 4a and 4b are pulled in through the hanging bags 5a and 5b, and the front side of the seat cover 2 is pulled. Is intended to represent a decorative groove 7 in the sewn portions 4a, 4b of the seat cover 2, and a molded urethane pad 8 (hereinafter simply referred to as a urethane pad) ) Are sewing portions 4a and 4b, that is, a substantially U-shaped drawing groove 9a which becomes a drawing portion of the sewing portion 4a and a drawing portion of the sewing portion 4b as shown in FIG. A linear recessed groove 9b is recessed, and insert wires 10a and 10b such as iron wire and steel wire are insert-molded in the recessed grooves 9a and 9b so as to be buried. Since it is difficult for the insert wire 10a provided in the lead-in groove 9a to bend at the bent R portion following the R portion, the insert wire 10a is bent into a short linear portion 10c as shown in FIG. The insert wire 10b is disposed approximately in the bent portion, and a linear insert wire 10b is disposed in the linear recess groove 9b. In order to prevent the insert wires 10a and 10b from coming off, FIG. Pressing the pad portion 11 is formed insert wire 10a, a plurality of upholstered recess 12 10b is exposed is insert molded are formed at predetermined intervals at predetermined intervals as shown.
[0003]
The seat cover 2 is wrapped around the urethane pad 8 thus formed, and the hanging bags 5a and 5b are drawn in at the hanging recess 12 and the hanging wires 6 inserted through the hanging bags 5a and 5b. And the insert wires 10a and 10b are hooked and latched by a C-ring, whereby the sewn portions 4a and 4b are retracted to form decorative grooves 7 having a predetermined pattern.
[0004]
[Problems to be solved by the invention]
However, the insert wires 10a and 10b insert-molded in the urethane pad 8 are made of iron wire, hard steel wire, or the like. In particular, the insert wire 10a provided in the recessed groove 9a is bent at the R portion into a short straight portion 10c and the R wire is bent. Since it must be bent approximately to the part, there is a problem that the degree of freedom is hindered and it is not possible to cope with various patterns of the decorative groove 7, and the urethane pad 8 is a combination of an organic compound and a metal. Therefore, there is a problem that it is difficult to sort when attempting to recycle.
The present invention has been made in order to solve the above-mentioned conventional problems, and provides a resin wire for pad insert which can cope with various patterns of decorative grooves and can easily cope with recycling. The purpose is to do so.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention sews a hanging bag on a specific sewing portion of a seat cover on which a plurality of skin pieces are sewn, pulls the hanging bag on the mold urethane pad side, and forms the sewing portion in a predetermined pattern. In order to form the recess into the decorative groove, a recessed groove is formed on the mold urethane pad side in accordance with the pattern of the sewn portion, and a synthetic resin is buried in this recess along the substantially center position of the bottom thereof. Insertion molding of a resin wire provided with a fin member made of a core material made of a material and a fiber material which is integrally attached to the core material and extends and is buried on the left and right side walls of the lead-in groove to form a hanging bag. This is a pad insert resin wire that is pulled into and fixed to the core member 20 and the core member can be prevented from coming off by a fin member.
[0006]
[Action]
With the above-described configuration, it is easy to dispose the core material in the curved groove portion, and it is possible to cope with various patterns of the decorative groove.
[0007]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a seat cover 2 of a seat cushion 15 and a urethane pad 16, FIG. 2 is a plan view of the urethane pad 16, and FIG. FIG. 4 is a perspective view of the wire (resin wire) 19, FIG. 4 is a cutaway perspective view of the suspension recess 22, and FIG. 5 is an enlarged view of the R portion of the drawing groove 17. The seat cushion 15 is composed of the seat cover 2 and urethane. The seat cover 2 is composed of a pad 16 and the seat cover 2 is the same as the conventional one. A skin piece 3a, 3b, 3c located at the center, left and right skin pieces 3d, 3e, and a skin piece 3f enclosing the four sides of the side are provided. As shown in the figure, the sewn portions 5a and 5b are sewn to the substantially U-shaped sewn portion 4a and the linear sewn portion 4b, respectively. Wire 6 is inserted. The urethane pad 16 covered by the seat cover 2 is formed as follows.
[0008]
The urethane pad 16 is formed in substantially the same shape as the conventional urethane pad 8, and the upper surface thereof is substantially U-shaped following the sewn portion 4 a in order to draw the sewn portions 4 a and 4 b of the cover sheet 2 to represent the decorative groove 7. A U-shaped drawing groove 17 and a linear drawing groove 18 following the sewing portion 4b are formed in a recessed shape, and an insert wire 19 is provided in the drawing grooves 17, 18.
[0009]
The recesses 17 and 18 are recessed in the same shape. As shown in FIGS. 4 and 6, bottoms 17a and 18a are provided at predetermined depth positions, and both sides of the bottoms 17a and 18a are inclined. Side walls 17b and 18b are respectively formed to have a substantially trapezoidal cross section. An insert wire (also referred to as a resin wire) 19 is insert-molded in the recessed grooves 17 and 18 formed in this manner.
[0010]
The insert wire 19 includes a core member 20 and a fin member 21 formed integrally with the core member 20. The core member 20 is formed of a thermoplastic resin, for example, polypropylene, polyethylene, ABS resin, or the like. The core member 20 is formed integrally with a fin member 21 in a wire shape having a predetermined diameter. The fin member 21 is made of a fiber material, for example, a coarse plain weave cold gauze or the like. The fin member 21 is integrally formed so as to be sandwiched along the diameter line of the core material 20 and has a predetermined width in the left-right direction, that is, the drawing grooves 17, 18. Are formed so as to extend wider than the width of the bottom portions 17a and 18a, and are formed in series along the core material 20.
[0011]
The insert wire 19 formed in this manner is cut into insert wires 19a and 19b having a length provided in the drawing grooves 17 and 18. Since the core material 20 of the insert wires 19a and 19b is made of resin, In particular, the insert wire 19a provided in the drawing groove 17 can be easily bent in a curved shape following the R portion of the substantially U-shaped drawing groove 17, in which the fin member 21 is cut and cut. A notch C or the like is made and bent so that the fin member 21 is horizontally arranged in accordance with the forming position of the drawing groove 17 of the urethane foaming mold (not shown) by appropriate means, and the insert wire 19b is also drawn in. The urethane is provided at the molding position of the groove 18 and foamed to insert-mold the urethane pad 16. In this insert-molded state, as shown in FIGS. 6 (a) and 6 (b), the concentric member 21 is located substantially at the center of the bottom portions 17a and 18b, and a part thereof is exposed. The core member 20 is extended and fixed to the side of the side walls 17b and 18b, and the fin member 21 prevents the core member 20 from coming off. In addition, hanging recesses 22 for hanging the hanging bags 5a, 5b at predetermined intervals are formed in the drawing grooves 17, 18.
[0012]
The seat cover 2 is wrapped around the urethane pad 16 formed in this way, and the hanging bags 5a and 5b are pulled in at the hanging recess 22 and the hanging wires 6 inserted through the hanging bags 5a and 5b. And the core material 20 of the insert wires 19a and 19b are hooked by a C-ring, whereby the sewings 4a and 4b are retracted to form the decorative grooves 7 having a predetermined pattern.
[0013]
As described above, in the seat cushion 15 of the present example, the hanging bags 5a and 5b are sewn to the specific sewing portions 4a and 4b of the seat cover 2 in which the plurality of skin pieces 3a to 3f are sewn, and the hanging bags are provided on the urethane pad 16 side. In order to form the sewing portions 4a and 4b into the decorative grooves 7 of a predetermined pattern by drawing 5a and 5b, the drawing grooves 17 and 18 are recessed on the urethane pad 16 side according to the pattern of the sewing portions 4a and 4b. In addition, a core member 20 made of a synthetic resin material buried along the center of the bottoms 17a and 18a and integrally attached to the core member 20 are provided in the recesses 17 and 18, respectively. , 18 are insert-molded with insert wires 19a, 19b provided with fin members 21 made of a fibrous material extending and embedded on the left and right side walls 17b, 18b. b was retracted fixed core 20, the core member 20 is obtained by adapted to be retained by the fin member 21.
[0014]
Therefore, since the core material 20 of the insert wires 19a and 19b is formed of a synthetic resin material, the insert wires 19a and 19b can be easily disposed particularly along the R portion of the substantially U-shaped recessed groove 17, and can be freely arranged. Since the degree is high, it is possible to cope with various patterns of the decorative grooves 7 formed on the front surface side of the seat cover 2, so that the design beauty of the seat cushion 15 can be improved and the weight can be reduced. . Also, recycling can be easily performed without requiring special sorting work. Further, since the retaining of the core material 20 is configured to be dealt with by the fin member 21, the conventional pressing pad 11 can be omitted, and the bottom portions 17a, 18a of the drawing grooves 17, 18 can be made flat. Therefore, the drawing force in each hanging recess 22 can be made uniform, and the decorative groove 7 can be drawn beautifully.
[0015]
【The invention's effect】
Since the resin wire of the present invention is obtained by molding the core material of the synthetic resin material, the resin wire can be easily arranged particularly along the R portion of the substantially U-shaped drawing groove, and the degree of freedom is increased. Therefore, it is possible to cope with various patterns of the decorative groove formed on the front surface side of the seat cover, so that the design beauty of the seat cushion can be improved and the weight can be reduced. Also, recycling can be easily performed without requiring special sorting work. In addition, since the core material is prevented from coming off by a fin member, the conventional pressing pad can be omitted and the bottom of the drawing groove can be made flat, so that the drawing in each hanging recess is performed. The force can be made uniform and the decorative groove can be drawn in beautifully.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a seat cushion.
FIG. 2 is a plan view of a molded urethane pad.
FIG. 3 is a perspective view of a resin wire.
FIG. 4 is a sectional perspective view of a hanging recess.
FIG. 5 is an enlarged view of a circle shown in FIG. 2;
FIG. 6A is a sectional view taken along line AA of FIG. 2;
(B) It is BB sectional drawing of FIG.
FIG. 7 is an exploded perspective view of a conventional seat cushion.
FIG. 8 is a plan view of a conventional molded urethane pad.
FIG. 9 is a sectional perspective view of a conventional hanging recess.
FIG. 10 is an enlarged view of a circle shown in FIG. 8;
FIG. 11A is a sectional view taken along line AA of FIG. 8;
FIG. 9B is a sectional view taken along line BB of FIG. 8.
FIG. 12 is a sectional view taken along line CC of FIG. 8;
[Explanation of symbols]
2 Seat covers 3a to 3f Skin pieces 4a, 4b Sewing portions 5a, 5b Hanging bags 7 Decorative grooves 15 Seat cushions 16 Mold urethane pads 17, 18 Retraction grooves 17a, 18a Bottom portions 17b, 18b Side walls 19a, 19b Insert wires (resin wires) )
20 core material 21 fin member

Claims (1)

A sewing bag is sewn to a specific sewn portion of the seat cover in which a plurality of skin pieces are sewn, and the hanging bag is drawn into the mold urethane pad side so that the sewn portion is drawn into the decorative groove of a predetermined pattern. A recessed groove is formed on the urethane pad side according to the pattern of the sewn portion, and a core made of a synthetic resin material embedded along the center of the bottom of the groove is integrated with the core. A resin wire provided with a fin member made of a fibrous material that is mounted in a shape extending and embedded on the left and right side walls of the drawing groove is insert-molded, the hanging bag is drawn into the core material and fixed, and this core material is fixed. A resin wire for pad inserts that can be prevented from falling off by fin members.

Images