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Skin-integrated molded product and manufacturing method thereof

A manufacturing method and technology of molded products, which can be applied to other household appliances, transportation and packaging, special positions of vehicles, etc., can solve the problem that the leakage of foam to the outside cannot be reliably prevented, the leakage of foam cannot be reliably prevented, and Reliably prevent problems such as

Active Publication Date: 2020-11-24
TACHI S CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, Patent Document 2 discloses a method in which the injection nozzle inserted into the skin is pulled in a direction opposite to the insertion direction, thereby closing the opening with a tongue extended from the opening of the skin toward the inside. Afterwards, the foaming material is injected into the skin from the injection nozzle, but even if the injection nozzle is pulled in the direction opposite to the insertion direction, the covering sheet on the side where the injection nozzle is inserted may not necessarily be able to penetrate the covering. The entire area in the width direction of the sheet is reliably in contact with the other covering sheet, and it may not be possible to reliably prevent the foam for pad formation from leaking to the outside.
[0008] Furthermore, in Patent Document 3, the injection port is formed on the filling cloth for forming the injection port by a cutout portion having approximately the same size as the injection nozzle. However, as in Patent Document 3, Figure 9 As shown, there is a gap between the injection nozzle and the filling cloth for injection port formation, and the foam may leak to the outside through this gap, and it may not be possible to reliably prevent the foam for pad formation from leaking to the outside. Case
[0009] Furthermore, Patent Document 4 shows a structure in which a tubular film is sandwiched between a pair of tongue pieces provided so that the end edge of the skin extends from the opening to the inside of the skin, and the film is supplied from the tube to the inside of the skin. Foam, but a gap is formed between the pair of tongue pieces formed by extending the ends of the facing skins and bending them inwardly, and the tube, and foam for pad formation may not be reliably prevented. Leakage to the outside from the gap

Method used

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  • Skin-integrated molded product and manufacturing method thereof
  • Skin-integrated molded product and manufacturing method thereof
  • Skin-integrated molded product and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] exist figure 1 shows a perspective view of the headrest 100 in the state where the foaming material is injected into the headrest of this embodiment. figure 2 A perspective view of the front side skin 111 and the rear side skin 112 forming the opening 150 of the headrest 100 is shown in .

[0033] The headrest 100 of the present embodiment is provided with: a skin 110 formed in a bag shape and covering the surface; The material is formed by foaming, and the inside of the bag is filled; and the stay 130 is partly embedded in the foam 120 , and both ends protrude from the skin 110 to the outside.

[0034] The portion of the stay 130 that protrudes outward from the skin 110 faces downward, and is inserted into a receiving hole formed in the upper portion of the seat back of a vehicle seat (not shown), thereby attaching the headrest 100 to the seat. on the back of the chair.

[0035] exist figure 1 In the state where the ends of the stays 130 are shown facing upward,...

Embodiment 2

[0058] In Embodiment 1, as a method for reliably pulling up the end portion 1122 by pulling up the nozzle 142 upward after inserting the nozzle 142 into the hole 1124 formed at the end portion 1122 on the rear side skin 112 side Its structure covering the bottom of the gap between the front side skin 111 and the rear side skin 112 formed in the vicinity of the nozzle 142 is necessary to form a needle hole at the boundary portion 1123 between the front end portion 1121 and the end portion 1122 on the rear side skin 112 side by a sewing machine. The structure is described.

[0059] In contrast, in this embodiment, the front end portion 1121-2 and the end portion 1122-2 on the side of the rear side skin 112-2 are separately formed and their joining portion 1123-2 is sewn with a sewing machine. . The other parts are the same as those of the first embodiment, so the description thereof will be omitted.

[0060] exist Figure 7 The structures of the front side skin 111-2 and the ...

Embodiment 3

[0071] In Embodiment 1, the hole 1124 through which the nozzle 142 passes is formed at a portion closer to the front end of the end portion 1122 than the boundary portion 1123 where the sewing hole is formed, but in this embodiment, the rear side skin 112-4 The side boundary portion 1123-4 in which the sewing hole is formed is formed in a portion closer to the front end of the end portion 1122-4 than the hole 1124-4 through which the nozzle 142 passes. The configuration of the other parts is the same as that of the first embodiment, so the description thereof will be omitted.

[0072] Such as Figure 10 As shown, the rear side skin 112-4 bends a front end portion 1121-4 having the same width as the opening 150 downward to form a hole 1124-4 through which the nozzle 142 passes. A boundary portion 1123-4 between the front end portion 1121-4 and the front end portion 1122-4 is formed with needle holes by a sewing machine, and is thinner than the front end portion 1121-4 and the ...

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PUM

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Abstract

In a skin integral molded article which is formed by filling the inside of a skin which is formed into a bag shape with a foamed body and molding the foamed body integrally with the skin, an opening through which a foaming raw material is supplied into the skin is formed in the skin, in one side skin and other side skin which are formed with the opening being interposed, the one-side skin is bent into inside the opening, the other-side skin is provided with a part disposed ahead of a part which is bent into inside the opening and is formed to be pliable, and the part which is disposed ahead of the other-side skin part and is formed to be pliable is formed in contact with a leading end part of the one-side skin part which is bent into the opening.

Description

technical field [0001] The present invention relates to a skin-integrated molded article and a method for producing the same, and more particularly relates to filling a foamed body by injecting a foaming material into the inside of a bag-shaped skin and causing the inside to foam, thereby integrating the skin and the foam inside. A skin-integrated molded product in which a foam body is integrally formed and a method for producing the same. Background technique [0002] As a skin-integrated molded product, for example, regarding the molding of a headrest of a vehicle seat, for example, in the abstract of the specification of Japanese Patent Application Laid-Open No. 10-128769 (Patent Document 1), it is described that when the cushion is sewn into a bag In the headrest which is integrally foamed in the shape of the skin, for the purpose of preventing the foaming material used for cushion molding from leaking to the outside, the end edge of the opening A of the skin C sewn into...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/18B29C44/12B29C44/42B29L31/30
CPCB29C44/12B29C44/18B29C44/42B29L2031/3023B29C44/14B29C44/182B29C44/351B60N2/58B60N2/7017B60N2/80B29C44/425B29K2105/04B60N2/5891
Inventor 田畑毅
Owner TACHI S CO LTD