Cosmetic core material and cosmetic containing the core material

Abstract

To provide a fashion accessory core material which reduces a rise state being a state in which a fashion accessory core material is rotated and twisted in any direction of a cross sectional direction and can stably obtain original deformation resistance, and to provide a fashion accessory for holding the fashion accessory core material.SOLUTION: A fashion accessory core material 11 is held by a fashion accessory which is directly or indirectly attached to a body portion, is configured so that deformation resistance when external force in a bending direction of the body portion is received increases and whose vertical and horizontal dimensions in a cross section perpendicular to an axial direction differ. A first hollow space 13 being the hollow space in the shape of a cavity is formed in a substantially center in a core material longitudinal direction, which is the longitudinal direction in the cross section.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an ornament core material and an ornament with a core material, and particularly to an ornament core material configured to increase the deformation resistance when receiving an external force in the bending direction of a body part, and an ornament with a core material that holds this ornament core material.

Background Art

[0002] Conventionally, there has been an ornament core material that is held by an ornament directly or indirectly attached to a body part, is configured to increase the deformation resistance when receiving an external force in the bending direction of this body part, and has different longitudinal and lateral dimensions in a cross-section orthogonal to the axial direction (Patent Document 1).

[0003] Such ornament core materials are held by ornaments such as tapes, bras, corrective undergarments, protectors, corsets, and power assist suits that are directly or indirectly attached to body parts such as the torso and joints of the hands and feet. These ornaments may be worn on the body part through underwear, undergarments, etc. Also, the tape holding the ornament core material may be supported by methods such as sewing or adhesion to bras, corrective undergarments, etc. Since the deformation resistance of this ornament core material increases when receiving an external force in the bending direction of the body part, when the user wears such an ornament, it is difficult to bend the torso, joints of the hands and feet, etc. Thereby, for example, it is possible to protect the joints of the hands and feet in case of injury, failure, etc., to reinforce the functions of the hands and feet in daily life, and to maintain a correct posture and present a beautiful appearance.

[0004] Moreover, since such ornament core materials have different longitudinal and lateral dimensions in a cross-section orthogonal to the axial direction, the thickness in the normal direction of the surface can be reduced by wearing the ornament so that the surface direction of the body part to be worn and the longitudinal direction of the ornament core material in this cross-section are substantially parallel. Thereby, even when wearing the ornament that holds this ornament core material, it does not look bulky.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-229679 [Summary of the Invention] [Problems to be Solved by the Invention]

[0006] In the case of a conventional ornament core material having different longitudinal and transverse dimensions in the cross section, when attempting to bend the ornament core material in the longitudinal direction in its cross section, there has been a problem that the ornament core material rotates and twists in either direction in the cross section direction. For example, when a conventional ornament core material has an end face in the longitudinal direction in the cross section and the ornament core material is bent with this end face placed on a horizontal floor surface, the end face is inclined with respect to the floor surface, and a state occurs where either the outer end or the inner end of the rotation rises away from the floor surface. This state is hereinafter referred to as the "rising state."

[0007] That is, when the ornament core material is arranged so that the surface direction of the body part to which it is attached and the longitudinal direction in the cross section are substantially parallel, when receiving an external force in the bending direction of the body part, the conventional ornament core material bends in the short direction in its cross section, so the rising state does not occur. On the other hand, when the same conventional ornament core material receives an external force along the surface of the body part, it bends in the longitudinal direction in its cross section, so the rising state occurs. For example, when the joint bends not in the normal bending direction (front-back direction) but when the joint moves complexly and bends in the left-right direction, it bends in the longitudinal direction and the rising state occurs.

[0008] As a result, an ornament holding the conventional ornament core material may have its shape distorted and its appearance deteriorated due to the rising of this ornament core material, and there is also a risk that the joint between the ornament and the ornament core material may come off. Further, when attempting to bend the joint in the normal bending direction while in the risen state, there is also a risk that the deformation resistance against the force in the original bending direction cannot be obtained.

[0009] In view of such problems, an object of the present invention is to provide an ornament core material capable of reducing the occurrence of a rising state and stably obtaining the original deformation resistance, and an ornament holding the ornament core material.

Means for Solving the Problems

[0010] (1) The present invention provides an ornament core material that is held by an ornament directly or indirectly attached to a body part, is configured such that the deformation resistance increases when an external force in the bending direction of the body part is received, and has different longitudinal and transverse dimensions in a cross-section orthogonal to the axial direction, and forms a first hollow space, which is a hollow space, at substantially the center in the longitudinal direction of the core material, which is the longitudinal direction of the cross-section.

[0011] As a result of intensive studies, the present inventor has found that in the case of an ornament core material having different longitudinal and transverse dimensions in a cross-section, by forming a first hollow space, which is a hollow space, at substantially the center in the longitudinal direction of the core material, which is the longitudinal direction of the cross-section, the occurrence of a "rising state" is reduced even when the ornament core material bends in the longitudinal direction of the core material, and thus the present invention has been completed. Thereby, the ornament core material of the present invention can increase the deformation resistance when receiving an external force in the bending direction of the body part, and even when the ornament core material is arranged such that the surface direction of the body part to which the ornament core material is attached and the longitudinal direction of the core material are substantially parallel, it is difficult for a rising state to occur when the ornament core material receives an external force along the surface of the body part. Thus, depending on the ornament core material of the present invention, the original deformation resistance can be stably obtained.

[0012] (2) Further, the first hollow space may have different longitudinal and transverse dimensions in the cross-section, and the longitudinal direction of the space, which is the longitudinal direction of the cross-section, may be substantially orthogonal to the longitudinal direction of the core material.

[0013] That is, when the ornament core material bends in the longitudinal direction of the core material, the longitudinal direction of the first hollow space, which is the longitudinal direction of the space, is orthogonal to the bending direction of the ornament core material because the longitudinal direction of the first hollow space is substantially orthogonal to the longitudinal direction of the core material. And the short side direction of the first hollow space coincides with the bending direction of the ornament core material.

[0014] In other words, compared with the case where the longitudinal direction of the space coincides with the longitudinal direction of the core material, in the case of the jewelry core material of the present invention, the diameter of the first hollow space in the direction orthogonal to the bending direction of the jewelry core material is long. Therefore, the wall thickness around the first hollow space in the direction orthogonal to the bending direction is thinner. Thus, the inventor has found that when the jewelry core material bends in the longitudinal direction of the core material and the wall thickness around the first hollow space in the longitudinal direction of the space is thinner, the resistance in the longitudinal direction of the core material during deformation of the jewelry core material is small, and a rising state is less likely to occur. In this way, in the jewelry core material of the present invention, a rising state is less likely to occur when the jewelry core material receives an external force along the surface of the body part.

[0015] (3) Further, in the cross section, it may have a multilayer structure including the first hollow space, a core portion made of synthetic resin surrounding the first hollow space, and a sheath portion made of synthetic resin surrounding the core portion, and the elastic deformation resistance of the material of the core portion may be larger than the elastic deformation resistance of the material of the sheath portion.

[0016] That is, since the jewelry core material of the present invention has a core portion with a larger elastic deformation resistance of the material than the surrounding sheath portion, the deformation resistance when receiving an external force in the bending direction is higher than the case without the core portion. Moreover, since the core portion is arranged at a position close to the first hollow space, compared with the case where the core portion is arranged at a deviated position in the cross section, a well-balanced deformation resistance can be obtained for bending in either the longitudinal direction of the core material or the short-side direction of the core material, which is the short-side direction. In this way, the jewelry core material of the present invention can obtain a stable deformation resistance.

[0017] (4) Further, in the cross section, the outer edge of the core portion may form a substantially circular shape.

[0018] That is, since the boundary between the core part and the sheath part of the jewelry core material of the present invention is formed in a substantially cylindrical shape, it can be manufactured more efficiently when molding the core part and the sheath part made of synthetic resin respectively. For example, even when the core part is molded by two-color molding and the sheath part is molded from the outside thereof, the substantially cylindrical core part is less likely to have its cross-sectional shape crushed and formed into a distorted shape, and defects during manufacturing are less likely to occur.

[0019] (5) Further, the sheath part has a pair of end faces in the longitudinal direction of the core material as viewed in the axial direction, and the outer edge of the core part may form a substantially square shape in which both of the two opposing sides in the cross section are positioned substantially parallel to the respective end faces.

[0020] That is, since the jewelry core material of the present invention forms a substantially square shape in which two sides of the core part are positioned substantially parallel to both end faces of the sheath part, the area occupied by the cross section of the core part in the cross section of the sheath part is larger than when the core part forms a different shape. Therefore, since the volume of the core part, which has a greater elastic deformation resistance of the material than the sheath part and a higher deformation resistance when receiving an external force, is large, a higher deformation resistance can be obtained by the jewelry core material of the present invention.

[0021] (6) Further, in the cross section, the sheath part may form a second hollow space which is a pair of hollow spaces in a cavity shape arranged on both sides of the core part in the longitudinal direction of the core material.

[0022] That is, since the jewelry core material of the present invention forms a second hollow space in a cavity shape, it is possible to obtain a deformation resistance by the core part and be held in the jewelry in a stable posture by the sheath part, while reducing the weight as a whole. Therefore, since the jewelry holds a lightweight jewelry core material, the user can wear the jewelry lightly. Further, the handling of the jewelry core material is easy, and its manufacturing, transportation, storage, etc. can be carried out efficiently.

[0023] (7) Further, in the cross-section, it may have a pair of thin-walled extension portions extending to both ends in the longitudinal direction of the core material, and the extension portions may have needle holes drilled through the thin walls.

[0024] That is, when the body ornament core material of the present invention is held by the body ornament, it can be sewn to the fabric overlapped on the body ornament core material by the sewing thread inserted through the needle holes. Therefore, it is possible to prevent the position of the body ornament core material in the state of being held by the body ornament from shifting, the body ornament core material from rotating around the axial direction, and the body ornament core material from being twisted around the axial direction. As a result, the user can use the body ornament core material of the present invention and the body ornament holding the same in an appropriate state for a long period of time.

[0025] (8) The present invention provides a body ornament with a core material, which can be directly or indirectly attached to a body part, holds a body ornament core material configured to increase the deformation resistance when receiving an external force in the bending direction of the body part, and the body ornament core material has different longitudinal and transverse dimensions in a cross-section orthogonal to its axial direction and is held such that the surface direction of the body part and the longitudinal direction of the core material in the cross-section are substantially parallel. The body ornament core material is characterized in that it forms a hollow space in a substantially central portion in the longitudinal direction of the core material. Further, this ornament core material may have a multilayer structure including, in the cross section, the hollow space, a core portion made of synthetic resin surrounding the hollow space, and a sheath portion made of synthetic resin surrounding the core portion, and the elastic deformation resistance of the material of the core portion may be greater than that of the material of the sheath portion.

[0026] That is, the body ornament of the present invention can increase the deformation resistance when receiving an external force in the bending direction of the body part by the body ornament core material to be held, and by forming a hollow space in a substantially central portion in the longitudinal direction of the body ornament core material, even when the body ornament is arranged such that the surface direction of the body part on which the body ornament is worn and the longitudinal direction of the core material are substantially parallel, it is difficult for the body ornament core material to have a rising state when receiving an external force along the surface of the body part. Thus, depending on the body ornament of the present invention, the original deformation resistance can be stably obtained.

[0027] (9) Further, the ornament core material has, in the cross section, a pair of thin-walled extension portions extending at both ends in the longitudinal direction of the core material, and has needle holes formed through the thin walls of the extension portions, and may be sewn by a sewing thread inserted into the needle holes with respect to the fabrics overlapped in the axial direction view.

[0028] That is, in the ornament of the present invention, the ornament core material to be held can be sewn to the fabrics overlapped by the sewing thread inserted into the needle holes. Therefore, it is possible to prevent the position of the ornament core material in the state held by the ornament from shifting, similarly to prevent the ornament core material from rotating about the axial direction, and also to prevent the ornament core material from being twisted about the axial direction. As a result, the user can use the ornament of the present invention in an appropriate state for a long period of time.

Effect of the Invention

[0029] As described above, in the present invention, a deformation resistance when an external force in the bending direction of the user's body part is received is increased, and moreover, the occurrence of a rising state is reduced, and an ornament core material capable of stably obtaining the original deformation resistance and an ornament holding the ornament core material are provided.

Brief Description of the Drawings

[0030]

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[0031] [First Embodiment] A first embodiment of the present invention will be described with reference to FIGS. 1 to 6. Reference numeral 11 shown in the perspective view of FIG. 1 indicates a jewelry core material. In the figure, the direction of arrow U indicates above the jewelry core material 11, and the direction of arrow D indicates below it. The direction of arrow F indicates forward, and the direction of arrow B indicates backward. Also, the direction of arrow L indicates left, and the direction of arrow R indicates right. The jewelry core material 11 is a so-called long object, and its structure is continuous in the front-rear direction.

[0032] The jewelry core material 11 is formed in a columnar shape having an axial direction in the front-rear direction. C1 indicates the center line of this column. The shape and dimensions of the cross section at any position in the axial direction are substantially the same. The jewelry core material 11 has end faces 12 at its front end and rear end, and FIG. 1 shows the front end face 12a. Also, the jewelry core material 11 has an axial length according to the length of the jewelry to be described later, the length of the unit for manufacturing and distribution, etc. FIG. 1 merely schematically illustrates a jewelry core material 11 having a relatively short axial length. The cross section of the jewelry core material 11 has a core vertical dimension V in the vertical direction orthogonal to the center line C1 and a core horizontal dimension H in the left-right direction also orthogonal to it, and the core vertical dimension V is shorter than the core horizontal dimension H. And the short side direction of this cross section refers to the vertical direction of the jewelry core material 11, and will also be referred to as the core short side direction hereinafter. Also, the long side direction of this cross section refers to the left-right direction of the jewelry core material 11, and will also be referred to as the core long side direction hereinafter.

[0033] The jewelry core material 11 has a hollow space in the shape of a cavity at a position surrounding the center line C1 in the axial direction view, and this hollow space is called the first hollow space 13. The first hollow space 13 is arranged at approximately the center in the core short side direction and approximately the center in the core long side direction of the cross section of the jewelry core material 11.

[0034] The fashion accessory core material 11 is held by a fashion accessory 14 that is directly or indirectly attached to the wearer's body part. And the fashion accessory core material 11 is configured such that the deformation resistance increases when an external force in the bending direction of this body part is received. Therefore, the fashion accessory core material 11 may be called a "bone" which means "bone". Also, the fashion accessory 14 may be called a "loop", which is, for example, a tape-shaped product that inserts this bone inside. Examples of the fashion accessory 14 include tape, bra, corrective underwear, protector, corset, power assist suit, etc. Further, the fashion accessory core material 11 may be held by a tape which is the fashion accessory 14, and the tape may be supported by sewing, adhesion or the like to a bra, corrective underwear or the like. Furthermore, a protector, a corset, a power assist suit, etc. may be worn on the body part via underwear, lingerie or the like.

[0035] FIG. 2 shows a cross-sectional view of an example of a state in which the fashion accessory core material 11 is held by the fashion accessory 14. In this case, the fashion accessory 14 is an example of a tape having a rectangular cross-section, and the vertical dimension is shorter than the horizontal dimension, similar to the fashion accessory core material 11. For example, the tape is formed into a bag shape using a fabric of a fiber product that can surround the held fashion accessory core material 11 from above, below, left, and right. Also, the upper surface or the lower surface of this tape may be fixed to the surface of a bra, corrective underwear or the like by sewing, adhesion or the like to support the tape.

[0036] The cross-section of the fashion accessory core material 11 has a substantially semi-circular arc convex to the left and a substantially semi-circular arc convex to the right, and represents a shape like a land track in which these substantially semi-circular arcs are connected by two upper and lower horizontal straight lines. And the upper surface of the planar fashion accessory core material 11 is called the core material upper surface 15, and the lower surface is also called the core material lower surface 16. Also, the left and right side surfaces, which are in the shape of the outer peripheral surface of a semi-cylinder, are called the left side surface 17 and the right side surface 18, respectively.

[0037] The mounting product core material 11 may be formed of materials such as synthetic resin and rubber. For example, it may be formed of a synthetic resin material such as urethane or nylon, or by combining these synthetic resin materials. Since the mounting product core material 11 is formed of these materials, when an external force is applied to try to bend the mounting product core material 11, it exhibits a deformation resistance so as not to deform as much as possible against the external force. Such a deformation resistance indicating whether the mounting product core material 11 is likely to deform when an external force is applied is called rigidity and also hardness. On the other hand, since the mounting product core material 11 is formed of these materials, when the force is removed after deformation, it returns to its original state and exhibits so-called springback. Such a property is called elasticity.

[0038] The ornament core material 11 is held by the ornament 14 such that the core material upper surface 15 and the core material lower surface 16 are arranged parallel to the surface of the body part of the wearer on which the ornament 14 is worn. This surface of the wearer's body part is called the body surface and is represented by the reference symbol F (not shown). The mounting product core material 11 is arranged such that the upper and lower surfaces 15, 16 of the mounting product core material 11 are parallel to the body surface F, and since the core material longitudinal dimension V of the mounting product core material 11 is shorter than the core material transverse dimension H, in the state where the ornament 14 is worn, the thickness of the mounting product core material 11 in the direction perpendicular to the body surface F is small. That is, if the upper and lower surfaces 15, 16 are arranged perpendicular to the body surface F, since the core material transverse dimension H of the mounting product core material 11 is longer than the core material longitudinal dimension V, the thickness of the mounting product core material 11 in the direction perpendicular to the body surface F is large. Therefore, by holding the mounting product core material 11 as shown in FIG. 2, the degree to which the ornament 14 bulges in the direction perpendicular to the body surface F can be small. As a result, the influence on the design and bulkiness of the entire ornament 14 is small.

[0039] Also, for example, when the ornament core material 11 is held such that the upper surface 15 of the core material is farther from the body surface F and the lower surface 16 of the core material is closer to the body surface F, even when the ornament core material 11 swings about the center line C1, the large-area lower surface 16 of the core material follows the body surface F, so that the ornament core material 11 and the ornament 14 do not swing greatly and the posture is stable. If the upper and lower surfaces 15, 16 are arranged perpendicular to the body surface F, the posture is not stable because the ornament core material 11 is held such that either the left and right side surfaces 17, 18 with a relatively small area come closer to the body surface F.

[0040] When the wearer bends a body part such as a joint of the torso or limbs where the ornament 14 is worn, or when the body part where the ornament 14 is worn bends as other parts move, the ornament core material 11 shows deformation resistance and can protect these body parts. By making it difficult to bend the torso, joints of the limbs, etc., these body parts can be protected in case of injury, malfunction, etc. Also, it is possible to reinforce the functions of the limbs in daily life and present a beautiful appearance by maintaining the correct posture. The ornament core material 11 shows deformation resistance in the short-side direction of the core material when receiving a force that bends it in the short-side direction of the core material, and shows deformation resistance in the long-side direction of the core material when receiving a force that bends it in the long-side direction of the core material. Such a force in the short-side direction of the core material and bending in the short-side direction of the core material are hereinafter also referred to as a force in the thickness direction and bending in the thickness direction T, respectively. Also, a force in the long-side direction of the core material and bending in the long-side direction of the core material are hereinafter also referred to as a force in the width direction and bending in the width direction W, respectively.

[0041] FIG. 3 shows a schematic diagram for explaining the bending T in the thickness direction and the bending W in the width direction. FIG. 3(a) shows a state as viewed from the side when the upper surface 15 of the core material of the ornament core material 11 is on the inside and bending T in the thickness direction occurs. Also, FIG. 3(b) shows a state as viewed from the plane or the bottom surface when the right side surface 18 of the ornament core material 11 is on the inside and bending W in the width direction occurs. The bold arrows in each figure indicate the bending T in the thickness direction and the bending W in the width direction, respectively. Conversely, a state where the lower surface 16 of the core material is on the inside and bending T in the thickness direction occurs, and a state where the left side surface 17 is on the inside and bending W in the width direction occurs are represented by figures that are reversed left and right and up and down, respectively.

[0042] Incidentally, the "rising state" in which the accessory core material 11 rotates and twists in either direction in the cross-sectional direction mainly occurs when a force in the width direction is applied to the accessory core material 11 and bending W in the width direction occurs as shown in FIG. 3(b). This state is schematically shown in FIG. 4. FIGS. 4(a) and 4(b) represent cross-sectional views taken along line A-A shown in FIG. 3(b). That is, when bending W in the width direction occurs, the state before the accessory core material 11 rises in FIG. 4(a) is represented by a two-dot chain line, and the state in which the left side surface 17 side rises upward is represented by a solid line. Further, the state in which the right side surface 18 side rises upward in FIG. 4(b) is represented in the same manner. Such rising of the left side surface 17 side and rising of the right side surface 18 side occur randomly.

[0043] On the other hand, as a result of intensive studies, the inventor of the present invention has found that when the core material lateral dimension H in the cross section is longer than the core material longitudinal dimension V as in the accessory core material 11 of the present embodiment, by forming the hollow-shaped first hollow space 13 substantially at the center in the core material longitudinal direction, the occurrence of the "rising state" can be reduced even when the accessory core material 11 generates bending W in the width direction. Thereby, the accessory core material 11 can increase the deformation resistance when receiving an external force in the thickness direction which is the bending direction of the body part, and even when the accessory core material 11 is arranged such that the body surface H and the core material longitudinal direction are substantially parallel, the rising state is unlikely to occur when the accessory core material receives an external force in the width direction along the body surface H. Thus, depending on the accessory core material 11, the original deformation resistance can be stably obtained.

[0044] FIG. 5 shows a cross section at an arbitrary position in the axial direction of the core material 11 of the jewelry. FIG. 6 shows an example of a partial cross section in which the first hollow space 13 in the cross section of FIG. 5 is enlarged. The dimensions shown in FIG. 6 are only an example. The first hollow space 13 has different vertical and horizontal dimensions in a cross section perpendicular to the center line C1, and the spatial vertical dimension v1, which is the dimension in the up-down direction of the first hollow space 13, is longer than the spatial horizontal dimension h1, which is the dimension in the left-right direction. In this case, the vertical direction is the longitudinal direction of the first hollow space 13, which will be referred to as the spatial longitudinal direction below. The left-right direction is the short-side direction of the first hollow space 13, which will be referred to as the spatial short-side direction below. The spatial longitudinal direction is perpendicular to the core material longitudinal direction, which is the left-right direction.

[0045] In the cross-sectional view of Fig. 6, the first hollow space 13 has an upper semicircular arc 13a and a lower semicircular arc 13a. The center of the upper semicircular arc 13a and the center of the lower semicircular arc 13a are located vertically away from the center line C1. For example, the center of the upper semicircular arc 13a is located at C2 in Fig. 3 and is located upwardly away from the center line C1. The upper and lower semicircular arcs 13a are connected by a vertical straight line 13b on the left side and a vertical straight line 13b on the right side. Thus, the vertical dimension v1 of the space is longer than the horizontal dimension h1 of the space.

[0046] In this way, the spatial longitudinal direction of the first hollow space 13 is perpendicular to the core longitudinal direction of the jewelry core material 11, so that when the jewelry core material 11 is bent in the width direction W, the spatial longitudinal direction is perpendicular to the bending direction of the jewelry core material 11. And the spatial short direction of the first hollow space 13 coincides with the width direction, which is the bending direction of the jewelry core material 11.

[0047] That is, compared with the case where the spatial longitudinal direction coincides with the longitudinal direction of the core material, in the case of the jewelry core material 11 of the present invention, the diameter of the first hollow space 13 in the spatial longitudinal direction orthogonal to the width direction, which is the bending direction of the jewelry core material 11, is longer than the diameter in the spatial short-side direction. Therefore, the thickness of the jewelry core material 11 on the upper and lower sides of the first hollow space 13 is thinner. And the inventor has found that when the jewelry core material 11 bends in the width direction and the thickness of the jewelry core material 11 on the upper and lower sides of the first hollow space 13 is thinner, the resistance in the longitudinal direction of the core material during deformation of the jewelry core material 11 is small, and the rising state is less likely to occur. Thus, the jewelry core material 11 of the present invention is less likely to exhibit a rising state when the jewelry core material 11 receives an external force along the body surface F.

[0048] As shown in the cross-sectional view of FIG. 5, the first hollow space 13 is surrounded by a core portion 19 on its top, bottom, left, and right. The outer edge of the core portion 19 in the axial direction view draws a substantially circular shape and is formed in a substantially cylindrical shape with the center line C1 as the central axis. The material of the core portion 19 is a synthetic resin. For example, nylon resins including nylon 6 are used. The periphery of this core portion 19 is surrounded by a sheath portion 20. The material of the sheath portion 20 is a synthetic resin. For example, polyurethane is used. As the material of the core portion 19, one having an elastic deformation resistance greater than that of the material of the sheath portion 20 is adopted. For example, if the material of the core portion 19 is nylon 6, its tensile elastic modulus is 2.7 GPa, and if the material of the sheath portion 20 is polyurethane, its tensile elastic modulus is 0.07 GPa to 2.4 GPa. Therefore, the elastic deformation resistance of the core portion 19 is greater than that of the sheath portion 20.

[0049] Thus, since the jewelry core material 11 has the core portion 19 with a greater elastic deformation resistance of the material than the surrounding sheath portion 20, the deformation resistance when receiving an external force in the bending direction is higher compared to the case where it does not have the core portion 19. Moreover, since the core portion 19 is disposed at a position close to the first hollow space 13, a well-balanced deformation resistance can be obtained for both the bending W in the width direction and the bending T in the thickness direction, compared to the case where the core portion is disposed at a biased position in the cross section. Thus, the jewelry core material 11 can obtain a stable deformation resistance.

[0050] In addition, since the boundary between the core part 19 and the sheath part 20 of the ornament core material 11 is formed in a substantially cylindrical shape, the core part 19 and the sheath part 20 made of synthetic resin can be manufactured more efficiently when molding them respectively. For example, even when the core part 19 is molded by two-color molding and the sheath part 20 is molded from the outside thereof, the substantially cylindrical core part 19 is less likely to have its cross-sectional shape crushed and formed into a distorted shape, and defects during manufacturing are less likely to occur.

[0051] Also, as shown in the cross-sectional view of FIG. 5, the sheath part 20 of the ornament core material 11 forms a pair of hollow spaces, i.e., second hollow spaces 21 and 22, which are arranged on both the left and right sides in the longitudinal direction of the core material with respect to the core part 19. The pair of second hollow spaces 21 and 22 consists of a left hollow space 21 arranged on the left side and a right hollow space 22 arranged on the right side.

[0052] The left hollow space 21 has a space formed by combining a semi-cylindrical shape having an arc on the left side in the axial direction view and a quadrangular prism adjacent to the right side thereof. And on the radially outer side of the semi-cylindrical part of the left hollow space 21, the sheath part 20 forms a left side surface 17 whose outer peripheral surface is in the shape of the outer peripheral surface of the semi-cylindrical shape. Also, on the upper side of the quadrangular prism part, the sheath part 20 forms a part of the core material upper surface 15 whose upper surface is planar. Similarly, on the lower side, the sheath part 20 forms a part of the core material lower surface 16 whose bottom surface is planar. For the right hollow space 22 as well, similarly, the outer peripheral surface of the surrounding sheath part 20 forms a right side surface 18 whose outer peripheral surface is in the shape of the outer peripheral surface of the semi-cylindrical shape, also forms a part of the core material upper surface 15 whose upper surface is planar, and also forms a part of the core material lower surface 16 whose lower surface is planar. Thus, the left and right second hollow spaces 21 and 22 have shapes following the outer surfaces of the surrounding sheath parts 20 respectively.

[0053] Thus, the ornament core material 11 forms the second hollow spaces 21 and 22 that are hollow, obtains deformation resistance by the core part 19, and is held by the ornament in a stable posture by the flat sheath part 20 on the left and right, while the weight can be reduced as a whole. In particular, by making the shapes of the second hollow spaces 21 and 22 follow the outer surface of the surrounding sheath part 20, the surrounding sheath part 20 can be formed with a thin wall, and the weight can be further reduced. Therefore, when the ornament 14 holds the lightweight ornament core material 11, the user can wear the ornament 14 lightly. In addition, the ornament core material 11 is easy to handle, and its manufacturing, transportation, storage, etc. can be carried out efficiently.

[0054] In addition, since the ornament core material 11 has the second hollow spaces 21 and 22, by changing the shape or position of the second hollow spaces 21 and 22, the wall thickness of the sheath part 20 around the second hollow spaces 21 and 22, etc. during manufacturing, not only the above-mentioned weight but also the overall rigidity, elasticity, etc. of the ornament core material 11 can be adjusted. Thus, a high degree of freedom in the design of the ornament core material 11 can be obtained.

[0055] [Second Embodiment] FIG. 7 illustrates the second embodiment of the present invention. Reference numeral 31 shown in the figure indicates an ornament core material. The ornament core material 31 is formed in a columnar shape having an axial direction in the front-rear direction. Further, FIG. 7 represents a cross section at an arbitrary position in the axial direction of the ornament core material 31. The sheath part 20 of the ornament core material 31 has an upper core material upper surface 15 that is an end surface in the core material longitudinal direction and a lower core material lower surface 16 that is also the same.

[0056] As shown in the cross-sectional view of FIG. 7, the first hollow space 13 is surrounded by the core part 32 on its top, bottom, left, and right. In this cross-sectional view, the outer edge of the core part 32 depicts a rounded rectangle. And the upper side 33 and the lower side 34 of this rounded rectangle are both positioned parallel to the core material upper surface 15 and the core material lower surface 16.

[0057] As a result, in the ornament core material 31 of the present embodiment, since the upper side 33 and the lower side 34 of the core part 32 are positioned substantially parallel to the upper surface 15 and the lower surface 16 of the core material, the area occupied by the cross section of the core part 32 inside the cross section of the sheath part 20 is larger than when the core part 32 forms a different shape. Therefore, the volume of the core part 32, which has a higher elastic deformation resistance of the material than the sheath part 20 and a higher deformation resistance when receiving an external force, is large. From this, a higher deformation resistance can be obtained by the ornament core material 31.

[0058] Other configurations are common to the first embodiment.

[0059] [Third Embodiment] The third embodiment of the present invention will be described with reference to FIGS. 8 to 11. 41 shown in the perspective view of FIG. 8 indicates an ornament core material. The ornament core material 41 has a pair of thin-walled extension parts 42 and 43 extending to both ends in the core material longitudinal direction, which is the left-right direction, in a cross section orthogonal to the center line C1. This pair of extension parts 42 and 43 consists of a left extension part 42 extending leftward and a right extension part 43 extending rightward.

[0060] FIG. 9(a) shows a cross section at an arbitrary position in the axial direction of the ornament core material 41. The left extension part 42 is extended so that substantially the lower half of the left side surface 17 of the sheath part 20 bulges leftward, and is formed in a thin-walled shape such that the thickness in the vertical direction becomes smaller as it is located on the left side. Similarly, the right extension part 43 is also extended so that substantially the lower half of the right side surface 18 of the sheath part 20 bulges rightward, and is formed in a thin-walled shape such that the thickness becomes smaller as it is located on the right side. The lower surface 46 of the core material extends to the lower surface parts of the left and right extension parts 42 and 43 to form a wide bottom surface as a whole.

[0061] A plurality of needle holes 44 penetrating vertically in the thin-walled part are formed in the left extension part 42 so as to form a row in the front-rear direction. Similarly, a plurality of needle holes 45 are also formed in the right extension part 42 so as to form a row in the front-rear direction. Each of the needle holes 44 and 45 has an inner diameter of such a thickness that a sewing thread described later can be inserted therethrough.

[0062] FIG. 9(b) shows a cross-sectional view of an example of a state in which the jewelry core material 41 is held by the jewelry 47. This figure shows an example in which the jewelry 47 is a tape with a rectangular cross-section. The jewelry 47 has a fabric that surrounds the jewelry core material 41 from above, below, left, and right in the axial direction view, and the jewelry core material 41 and this fabric are overlapped. Then, the jewelry core material 41 is sewn to the fabric by sewing threads 48 that are inserted through the pinholes 44 and 45. As shown in FIG. 9(b), a plurality of sewing threads 48 penetrate each of the pinholes 44 in the left column and sew the jewelry 47 and the jewelry core material 41 in the vertical direction. Also, a plurality of sewing threads 48 penetrate each of the pinholes 45 in the right column and similarly sew the jewelry 47 and the jewelry core material 41 in the vertical direction.

[0063] Other configurations are common to the first embodiment or the second embodiment.

[0064] In this way, when the jewelry core material 41 is held by the jewelry 47, it can be sewn to the fabric overlapped on the jewelry core material 41 by the sewing threads 48 inserted through the pinholes 44 and 45. Therefore, it is possible to prevent the position of the jewelry core material 41 in the state of being held by the jewelry 47 from shifting, the jewelry core material 41 from rotating about the axial direction, and the jewelry core material 41 from being twisted about the axial direction. Moreover, since the pinholes 44 and 45 are provided at both ends in the longitudinal direction of the core material, the distance between the pinholes 44 in the left column and the pinholes 45 in the right column is long. Therefore, the effect of suppressing the rocking of the jewelry core material 41 with respect to the jewelry 47 in the axial direction view is high, and the above-described rotation and twisting can be reduced more efficiently.

[0065] Furthermore, since the lower surface 46 of the core material extends to the lower surface portions of the left and right extension portions 42 and 43 to form the bottom surface of the jewelry core material 41 that is wide as a whole, the jewelry core material 41 can be held along the body surface F over a wider area through the fabric of the jewelry 47. Therefore, the above-described rotation and twisting can be reduced even more efficiently. As a result, the user can use the jewelry core material 41 and the jewelry 47 that holds it in an appropriate state for a long period of time.

[0066] Note that the ornament 47 in this embodiment does not have to be a tape as shown in Fig. 9(b). For example, as shown in Fig. 10(a), the ornament 47 may be a combination of a wearing fabric 49 which is the fabric of the ornament body such as a bra, a corrective undergarment, a protector, a corset, a power assist suit, etc., and a covering fabric 50 which is a fabric to be placed on the wearing fabric 49. In this case, the wearing fabric 49 and the covering fabric 50 of the ornament 47 are stacked in the vertical direction so as to sandwich the ornament core material 41 in the axial view. Then, a plurality of sewing threads 48 sew the covering fabric 50, the extension portions 42, 43 and the wearing fabric 49 in order from top to bottom. At this time, each sewing thread 48 penetrates the needle holes 44, 45. Thus, the ornament 47 holds the ornament core material 41.

[0067] Also, the ornament 47 in this embodiment may be only the wearing fabric 49 which is the fabric of the ornament body as shown in Fig. 10(b). In this case, the wearing fabric 49 of the ornament 47 is stacked in the vertical direction with the ornament core material 41 in the axial view. Then, a plurality of sewing threads 48 sew the extension portions 42, 43 of the ornament core material 41 to the wearing fabric 49 while penetrating the needle holes 44, 45 from top to bottom. Thus, the ornament 47 holds the ornament core material 41.

[0068] As described above, when the ornament 47 is a combination of the wearing fabric 49 and the covering fabric 50 or only the wearing fabric 49, since the ornament core material 41 is held without using a tape for bras, corrective undergarments, protectors, corsets, power assist suits, etc., the designs of these bras, corrective undergarments, protectors, etc. can be freely determined without being affected by the shape, structure, material, etc. of the tape.

[0069] In addition to these, the core portion 19 in this embodiment does not have to be limited to having a substantially circular outer edge in the axial view as shown in Figs. 9 and 10. For example, like the ornament core material 51 shown in Fig. 11, it may have a core portion 32 with a substantially rectangular outer edge in the axial view.

[0070] [Example 1] As a comparative example, the inventor prepared a prototype of an ornament core material that does not have a first hollow space at a position surrounding the center line C1 in the axial direction view. Also, as an example of the embodiment of the present invention, a prototype of an ornament core material having a first hollow space at a position surrounding the center line C1 was prepared. Hereinafter, the former prototype of the ornament core material without the first hollow space will be referred to as the solid core material prototype 60, and the latter prototype of the ornament core material having the first hollow space will be referred to as the ornament core material prototype 11a of the present invention. As an example of the dimensions of the ornament core material 11a of the present invention, each dimension shown in mm units in the cross section shown in FIG. 5 is shown in FIG. 12.

[0071] The photograph in FIG. 13(a) is a photograph of the state in which a bending W in the width direction occurs by applying a force in the width direction to the solid core material prototype 60 as shown in FIG. 3(b), viewed from the directions of the core upper surface 65 and the core lower surface 66 in the original posture. Also, the photograph in FIG. 13(b) is a photograph of the state in which a bending W in the width direction occurs by applying a force in the width direction to the ornament core material prototype 11a in the same manner. By comparing these photographs, for example, at the uppermost part of FIG. 13(a), as shown in the following schematic diagram, the right side surface 18 side of the solid core material prototype 60 is rising, whereas in the ornament core material prototype 11a of FIG. 13(b), it can be seen that it does not rise like the solid core material prototype 60. It has been found that, like this ornament core material prototype 11a, the ornament core material 11 is less likely to generate a rising state by forming the first hollow space 13.

[0072] [Example 2] As a result of intensive studies, the inventor found that the force that causes the "rising state" is buffered by the reduction in volume due to the collapse of the first hollow space 13a of the ornament core material 11, and it is difficult for the rising state to occur. Therefore, as shown in FIGS. 14 to 18, the inventor caused a bending W in the width direction using the ornament core material prototype 11b of the present invention, and measured the reduction rate of the core lateral dimension h2 in the longitudinal direction of the core portion 19a at the bent portion. Although not shown in the figure, the ornament core material prototype 11b is provided with the first hollow space 13a according to the present invention.

[0073] First, scale marks A to M perpendicular to the axial direction were marked on the jewelry core material prototype 11b in the order from top to bottom in FIG. 14, and the core material lateral dimension H and the core part lateral dimension h2 in the longitudinal direction of the core material at each scale mark were measured in millimeters. The measured values of the core material lateral dimension H and the core part lateral dimension h2 at each scale mark are shown in FIG. 14. These core material lateral dimension H and core part lateral dimension h2 were measured using an MF-J2017D type measuring microscope manufactured by Mitutoyo Corporation. Incidentally, the core material longitudinal dimension V in the short side direction of the jewelry core material prototype 11a was 2.1 mm.

[0074] Next, as shown in FIG. 15(a), a groove was recessed in the mold and the jewelry core material prototype 11b was fitted into the groove, and a bending W in the width direction was caused in this jewelry core material prototype 11b. Then, in that state, the core material lateral dimension H and the core part lateral dimension h2 at the scale marks A to M were measured again. FIG. 15(b) shows the state when the core material lateral dimension H and the core part lateral dimension h2 were measured using an MF-J2017D type measuring microscope manufactured by Mitutoyo Corporation in the state where the bending W in the width direction was caused.

[0075] FIG. 16 shows the results of measuring the core material lateral dimension H' and the core part lateral dimension h2' at the scale marks A to M of the jewelry core material prototype 11b in which the bending W in the width direction was caused in this way in millimeters.

[0076] Finally, as shown in the table of FIG. 17, the inventor compared the core material lateral dimension H and the core part lateral dimension h2 before causing the bending W in the width direction in the jewelry core material prototype 11b with the core material lateral dimension H' and the core part lateral dimension h2' after causing the bending W in the width direction, and calculated the change rate of the core part lateral dimension h2 at each scale mark A to M. The table represents the change rate obtained by dividing the core part lateral dimension h2' by the core part lateral dimension h2 as a percentage, and also represents the value obtained by subtracting 1 from this change rate as a reduction rate as a percentage. Then, this reduction rate at each scale mark A to M is represented by the graph of FIG. 18.

[0077] As shown in this graph, when the jewelry core material prototype 11a was bent in the width direction W, the reduction rate of the core cross-sectional dimension h2 generally showed a tendency that the values closer to both ends among the graduations A to M were smaller, and the values closer to the center were larger. Here, the magnitude of the reduction rate refers to the magnitude of the absolute value of the numerical value. For example, the absolute value of the reduction rate at graduation B is 0.0%, which is the smallest among A to M. Also, the absolute values of the reduction rates at graduations A, K, and L are 1.0%, which are the second smallest respectively. On the other hand, the absolute value of the reduction rate at graduation J is 4.4%, which is the largest among A to M. Also, the absolute values of the reduction rates at graduations G and H are 3.4%, which are the second largest respectively.

[0078] From this, it is speculated that the degree of collapse of the first hollow space 13a is small on the sides closer to both ends among the graduations A to M of the jewelry core material prototype 11a, and thus the reduction rate is small. That is, it is speculated that on the sides closer to both ends among the graduations A to M, the curvature of the bending W in the width direction is small, and this makes the collapse of the first hollow space 13a small and the reduction rate small. Conversely, it is speculated that the degree of collapse of the first hollow space 13a is large on the sides closer to the center among the graduations A to M of the jewelry core material prototype 11a, and thus the reduction rate is large. That is, it is speculated that on the sides closer to the center among the graduations A to M, the curvature of the bending W in the width direction is large, and this makes the collapse of the first hollow space 13a large and the reduction rate large.

[0079] Through the experiments of these Example 1 and Example 2, the inventor found that the occurrence of the rising state was reduced when the jewelry core material of the present invention was provided with the first hollow space, and confirmed that the first hollow space collapsed and its volume decreased when the curvature was large when bending W in the width direction occurred. Thus, it was confirmed that by providing the first hollow space in the jewelry core material, the force that causes the "rising state" is buffered, and it is difficult for the rising state to occur.

[0080] As described above, the embodiments of the present invention have been exemplified, but the present invention is not limited to these embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0081] For example, the outer edge of the first hollow space in the cross-section of the ornament core material is not limited to the shape combining upper and lower semi-circular arcs and a straight line, and may be, for example, a polygonal shape, an irregular shape combining a curve other than a semi-circular arc and a straight line, etc., as long as the rise of the ornament core material can be reduced.

[0082] Further, the core part of the ornament core material is not limited to having a substantially cylindrical or substantially quadrangular prism cross-section, and may be, for example, a substantially polygonal prism other than a substantially quadrangular prism, an irregular shape combining a straight line and a curve, etc., as long as it can obtain the deformation resistance in the required size or direction and there is no problem in manufacturing.

[0083] The outer edge in the cross-section of the sheath part of the ornament core material is not limited to the shape of a land vehicle track, and may be, for example, a polygonal shape, an irregular shape combining a curve and a straight line other than the land vehicle track shape, etc., as long as it can follow the body surface and does not protrude.

[0084] The second hollow space of the ornament core material does not necessarily have to be provided as long as the weight of the ornament core material is not too large, and does not necessarily have to be provided in a pair on the left and right. Moreover, the outer edge of the second hollow space in the cross-section is not limited to the shape combining a semi-cylindrical shape and a quadrangular prism shape, and may be a substantially circular shape, a substantially polygonal shape, an irregular shape combining a curve and a straight line, etc., as long as the ornament core material can obtain the deformation resistance in the required size or direction and there is no problem in manufacturing.

[0085] Additives such as titanium oxide may be added to the synthetic resin material of the ornament core material. For example, when adding titanium oxide, the ornament core material can be colored white and the discoloration of the ornament core material can be reduced.

Industrial Applicability

[0086] The present invention can be used for ornaments directly or indirectly attached to a body part, and can also be used for ornament core materials held by such ornaments.

Explanation of Signs

[0087] 11, 31, 41, 51 Cosmetic core material 12 End face 13 First hollow space 14, 47 Cosmetic 15, 65 Upper surface of the core material 16, 46, 66 Lower surface of the core material 17 Left side surface 18 Right side surface 19, 32 Core part 20 Sheath part 21 Second hollow space (left hollow space) 22 Second hollow space (right hollow space) 42 Extension part (left extension part) 43 Extension part (right extension part) 44, 45 Needle holes 48 Sewing thread 49 Attachment area 50 Covering fabric 60 Solid core material prototype

Claims

1. A body ornament core material that is held by a body ornament directly or indirectly attached to a body part, is configured such that its deformation resistance increases when receiving an external force in the bending direction of the body part, and has different longitudinal and transverse dimensions in a cross section orthogonal to the axial direction, forming a first hollow space that is a hollow cavity at substantially the center in the core material longitudinal direction which is the longitudinal direction in the cross section, and having a multilayer structure including, in the cross section, the first hollow space, a core portion made of synthetic resin surrounding the first hollow space, and a sheath portion made of synthetic resin surrounding the core portion, wherein the elastic deformation resistance of the material of the core portion is greater than that of the material of the sheath portion characterized body ornament core material.

2. The first hollow space has different longitudinal and transverse dimensions in the cross section, and the space longitudinal direction which is the longitudinal direction in the cross section is substantially orthogonal to the core material longitudinal direction The body ornament core material according to claim 1, characterized in that.

3. In the cross section, the outer edge of the core portion forms a substantially circular shape The body ornament core material according to claim 1, characterized in that.

4. The sheath portion has a pair of end faces in the core material longitudinal direction in the axial view, The outer edge of the core portion forms a substantially square shape in which both of the two opposing sides in the cross section are positioned substantially parallel to the respective end faces The body ornament core material according to claim 1, characterized in that.

5. In the cross section, the sheath portion forms a second hollow space that is a pair of hollow cavities arranged on both sides of the core portion in the core material longitudinal direction The body ornament core material according to claim 1, characterized in that.

6. In the cross section, it has a pair of thin-walled extension portions extending to both ends in the core material longitudinal direction, The extension portion has a needle hole drilled through its thin wall The body ornament core material according to any one of claims 1 to 5, characterized in that.

7. A body ornament with a core material that can be directly or indirectly attached to a body part, holds a body ornament core material configured such that its deformation resistance increases when receiving an external force in the bending direction of the body part, and the body ornament core material has different longitudinal and transverse dimensions in a cross section orthogonal to its axial direction and is held such that the surface direction of the body part and the core material longitudinal direction which is the longitudinal direction in the cross section are substantially parallel, The body ornament core material forms a hollow space in a substantially central portion in the longitudinal direction of the core material, and has a multilayer structure including, in the cross section, the hollow space, a core portion made of synthetic resin surrounding the hollow space, and a sheath portion made of synthetic resin surrounding the core portion. The elastic deformation resistance of the material of the core portion is greater than the elastic deformation resistance of the material of the sheath portion. The body ornament with a core material is characterized by this.

8. The body ornament core material has, in the cross section, a pair of thin-walled extension portions extending to both ends in the longitudinal direction of the core material, and has needle holes formed through the thin walls of the extension portions, and is sewn with a sewing thread inserted into the needle holes with respect to fabrics overlapped in the axial direction view. The body ornament with a core material according to claim 7, characterized by this.

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