JP2012219408A - Bust cup core material made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bust cup core material made of a synthetic resin, which is capable of securing suitable elastic restoring force even by reducing the using amount of a material resin, and is capable of avoiding soil of bust cup cloth caused by the stay of water in washing or by sweat.SOLUTION: This bust cup core material 1 made of the synthetic resin, which is incorporated and used in the lower side surrounding part of a bust cup 2, is formed in an arc-formed planar shape along the lower side part of the bust cup 2 and in a cross section in which a width H is larger than a thickness T. Two arc-formed hermetically sealed spaces 4 which have both blocked ends and continue along a longitudinal direction are formed in parallel in a width direction at the inside of a thickness part.

Description

  The present invention is made of a synthetic resin for a bust cup that is used by being incorporated in a lower peripheral portion of a bust cup in clothing having a bust cup (breast receiving cup) such as a brassiere, bra camisole, leotard, swimwear, sportswear, etc. Concerning the core material.

  As a synthetic resin core material for bust cups, those having various cross-sectional shapes have been proposed by Patent Documents 1 to 3 and the like. These bust cup synthetic resin core materials have no risk of breaking through the bust cup fabric even if broken, compared to general metal core bust cup core materials. There are many advantages such as no dirt and no response to metal detectors implemented at airports.

  However, in the conventional synthetic resin core material for bust cups, the elastic restoring force is poor compared to the metal core material, and the cross-sectional area of the core material is increased in order to ensure an appropriate elastic restoring force. In addition to an increase in the amount of resin used, there is a concern that the wearer may feel uncomfortable.

Japanese Patent No. 4150203 Japanese Patent No. 4443656 JP 2004-232138 A

  The present invention has been made in view of the above-mentioned problems, and the purpose thereof is to ensure an appropriate elastic restoring force while reducing the amount of material resin used, It is an object of the present invention to provide a synthetic resin core material for a bust cup that can avoid stagnation of bust cup fabric due to water retention and sweat during washing.

  In order to achieve the above object, technical measures taken by the present invention are as follows. That is, the synthetic resin core material for a bust cup according to the invention of claim 1 is formed in an arcuate planar shape along the lower side portion of the bust cup and in a cross-sectional shape having a width larger than the thickness, An arc-shaped sealed space that is continuous along the longitudinal direction and that is closed at both ends is formed inside the thickness.

  The invention according to claim 2 is the synthetic resin core material for bust cup according to claim 1, wherein two arc-shaped sealed spaces are formed in parallel in the width direction. .

  According to invention of Claim 1, since the function of an air spring is exhibited by the circular-arc-shaped sealed space formed in the thickness inside the synthetic resin core material, the cross-sectional shape having a smaller thickness than the width By forming a cavity continuous in the longitudinal direction inside the wall thickness, an appropriate elastic restoring force can be secured while reducing the amount of material resin used.

In addition, since both ends of the cavity are closed and an arc-shaped sealed space is provided, water and sweat during washing do not enter the cavity, and contamination of the bust cup fabric due to water retention and sweat during washing can be avoided.

  According to the second aspect of the present invention, since the two arc-shaped sealed spaces are formed in parallel in the width direction, the function of the air spring is exerted more strongly and the space between the two sealed spaces is The resin located in the position serves as a reinforcing rib and can have an appropriate rigidity in the thickness direction.

It is a perspective view which shows an example of the use condition of the synthetic resin core material for bust cups which concerns on this invention. It is a top view of the synthetic resin core material for bust cups concerning this invention. It is the sectional view on the AA line of FIG. It is sectional drawing of the synthetic resin core material for bust cups which shows other embodiment. It is sectional drawing of the synthetic resin core material for bust cups which shows other embodiment. It is sectional drawing of the synthetic resin core material for bust cups which shows other embodiment. It is sectional drawing of the synthetic resin core material for bust cups which shows other embodiment. It is sectional drawing of the synthetic resin core material for bust cups which shows other embodiment.

  Embodiments of the present invention will be described below with reference to FIGS. A synthetic resin core material 1 for a bust cup according to the present invention includes, for example, a bra camisole, a leotard, a swimsuit, sportswear, etc. in addition to a brassiere as shown in FIG. Is used in a state of being inserted into a bag-like through hole 3 formed in the lower peripheral portion of the bust cup 2.

  The bust cup synthetic resin core material 1 is formed in an arcuate planar shape along the lower side of the bust cup 2 and has a cross-sectional shape in which the width H is larger than the thickness T. In the illustrated embodiment, the cross section is formed in an oval shape. As shown in FIG. 2, the degree of curvature of the core material 1 curved in an arc shape is generally different on the left and right sides, and the portion located on the chest side (the right side in FIG. 2) has a small radius of curvature, The radius of curvature of the portion (right side in FIG. 2) is large.

  Inside the wall thickness of the synthetic resin core material 1 for the bust cup, two arc-shaped sealed spaces 4 which are continuous in the longitudinal direction and closed at both ends are formed in parallel in the width direction.

  In addition, as shown in FIG. 2, the both ends a and b of the core material 1 are formed, for example, by forming the chest-side end a into a rounded convex shape and the side-side end b into a concave shape. The shapes are different from each other, and care is taken so that the insertion direction with respect to the through hole 3 is not mistaken. Further, the core material 1 is formed symmetrically so that it can be shared by the left and right bust cups 2 by reversing the front and back (as shown in FIG. 3, the cross-sectional shape is the symmetry axis P in the thickness direction). Formed symmetrically).

  The bust cup synthetic resin core material 1 includes, for example, a step of extruding a hollow strip member, a step of bending the hollow strip member in the width direction, and a crushed hollow shape. It can be manufactured through a step of cutting the belt-shaped member into a predetermined length, a step of forming an arc along the lower side of the bust cup, and a step of closing both ends of the hollow portion.

  According to said structure, the function of an air spring is exhibited by the two circular-arc-shaped sealed space 4 formed in the thickness inside the synthetic resin core material 1. Therefore, in order not to give the wearer a sense of incongruity, the cross-sectional shape is smaller than the width, and by forming a continuous cavity in the longitudinal direction inside the thickness, while reducing the amount of material resin used An appropriate elastic restoring force can be ensured, and the resin 5 positioned between the two sealed spaces 4 can function as a reinforcing rib and have an appropriate rigidity in the thickness direction.

  In addition, since both ends of the cavity are closed and the arc-shaped sealed space 4 is formed, water and sweat at the time of washing do not enter the cavity, and stagnation of the bust cup fabric due to stagnation of water and sweat at the time of washing can be avoided.

  FIG. 4 shows another embodiment of the present invention. In this embodiment, the cross-sectional area of the arc-shaped sealed space 4 is reduced, and accordingly, the cross-sectional area of the resin 5 positioned between the two sealed spaces 4 is increased, thereby enhancing the function of the reinforcing rib. There is a feature in the point. Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

  FIG. 5 shows another embodiment of the present invention. This embodiment is characterized in that one large arc-shaped sealed space 4 is formed inside the thickness of the core material 1 to increase flexibility. Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

  FIG. 6 shows another embodiment of the present invention. This embodiment is characterized in that the cross-sectional shape of the core material 1 is formed in a rectangular shape. In the illustrated example, two arcuate sealed spaces 4 are formed in parallel in the width direction, but one large arcuate sealed space 4 may be formed as in FIG. Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

  FIG. 7 shows another embodiment of the present invention. This embodiment is characterized in that the cross-sectional shape of the core material 1 is formed in a rectangular shape having a recessed portion 5 in the central portion in the width direction, and arc-shaped sealed spaces 4 are formed on both ends in the width direction. . Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

  FIG. 8 shows another embodiment of the present invention. This embodiment is characterized in that the cross-sectional shape of the core material 1 is formed in an oval shape having a recessed portion 6 in the center in the width direction, and arc-shaped sealed spaces 4 are formed on both ends in the width direction. is there. Other configurations and operations are the same as those of the previous embodiment, and thus description thereof is omitted.

  The cross-sectional shape of the arc-shaped sealed space 4 can be appropriately selected from a circular shape, an oval shape, a square shape, a circular shape having a straight portion in part or an oval shape, as is apparent from FIGS.

DESCRIPTION OF SYMBOLS 1 Synthetic resin core material for bust cups 2 Bust cup 3 Through-hole 4 Arc-shaped sealed space 5 Resin 6 Recessed part H Width T Thickness P Symmetry axis a, b End

Claims (2)

  Arc-shaped planar shape along the lower side of the bust cup, and formed in a cross-sectional shape whose width is larger than the thickness, and the arc shape is continuous along the longitudinal direction inside the wall and closed at both ends. A synthetic resin core material for a bust cup, wherein a sealed space is formed.   The synthetic resin core material for a bust cup according to claim 1, wherein two arc-shaped sealed spaces are formed in parallel in the width direction.

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