BRA CUP FOR A BRASSIERE AND MANUFACTURING METHOD THEREOF
20200397069 ยท 2020-12-24
Inventors
Cpc classification
International classification
Abstract
A bra cup for a brassiere to be worn by a wearer is disclosed. The bra cup comprises a core layer. The core layer has an inner side and an outer side. A plurality of apertures are formed in the core layer. In one example, one or more of the plurality of apertures have a truncated conical cross-section with a relatively larger diameter towards the inner side and a relatively smaller diameter towards the outer side. In another example, the plurality of apertures comprises a plurality of elongated apertures formed in a frontal area of the bra cup and a plurality of circular apertures formed in a lateral area of the bra cup. The plurality of elongated apertures have a dumbbell shape. In yet another example, the bra cup comprises a plurality of protrusions defined in the core layer towards the inner side thereof.
Claims
1. A bra cup for a brassiere to be worn by a wearer, the bra cup comprising: a core layer formed of a foam material and having a three-dimensional configuration so as to conform to a breast of the wearer when the brassiere is worn, the core layer having an inner side and an outer side; and a plurality of apertures formed in the core layer, wherein the plurality of apertures comprises a plurality of circular holes and a plurality of elongated apertures; wherein one or more of the plurality of circular holes have a truncated conical cross-section with a relatively larger diameter towards the inner side and a relatively smaller diameter towards the outer side, of the core layer; wherein the plurality of circular holes are formed in a lateral area of the bra cup, and the plurality of elongated apertures are formed in a frontal area of the bra cup; and wherein one or more of the plurality of circular holes in a lower portion of the lateral area have the truncated conical cross-section.
2. (canceled)
3. The bra cup as claimed in claim 1, wherein one or more of the plurality of elongated apertures have a dumbbell shape with a slit and two openings formed at two ends of the slits respectively.
4. The bra cup as claimed in claim 1 further comprising a plurality of protrusions defined in the core layer towards the inner side thereof, wherein the protrusions are arranged in a matrix form such that one or more of the plurality of apertures are surrounded by three or more protrusions at the inner side of the core layer.
5. The bra cup as claimed in claim 4, wherein the plurality of protrusions comprises a first set of protrusions with substantially square shape and a second set of protrusions with substantially parallelogram shape, and wherein the first set of protrusions are located in a frontal area of the bra cup and the second set of protrusions are located in a lateral area of the bra cup.
6. The bra cup as claimed in claim 1, wherein the core layer and the plurality of apertures therein are formed by an injection molding process.
7. The bra cup as claimed in claim 6 further comprising a mesh joined with the core layer in the injection molding process.
8. The bra cup as claimed in claim 1 further comprising an underwire embedded within the core layer.
9. The bra cup as claimed in claim 8, wherein the underwire is made either of metallic material or plastic material.
10. The bra cup as claimed in claim 1 further comprising: an inner layer comprising at least a fabric sheet and optionally a foam sheet, and arranged with respect to the core layer such that the inner layer is disposed to be in contact with the breast of the wearer, when the brassiere is worn; and an outer layer comprising at least a fabric sheet and optionally a foam sheet, and arranged with respect to the core layer such that the outer layer is located at a distal end from the breast of the wearer, when the brassiere is worn.
11. A method of manufacturing a bra cup for a brassiere, the method comprising: providing a foam material in liquid form; providing a mold arrangement comprising a first mold and a second mold, at least one of the first mold and the second mold having a plurality of projections defined therein; injecting the foam material into the mold arrangement between the first mold and the second mold; and curing the foam material to be contoured into a three-dimensional configuration to form a core layer of the bra cup with a plurality of apertures, complementary to the plurality of projections, formed therein, wherein one or more of the plurality of apertures have a truncated conical cross-section with a relatively larger diameter towards the inner side and a relatively smaller diameter towards the outer side, of the core layer; wherein the plurality of apertures comprises: a plurality of elongated apertures disposed in a frontal area of the bra cup; and a plurality of circular holes disposed in a lateral area of the bra cup, wherein one or more of the plurality of circular holes in a lower portion of the lateral area have the truncated conical cross-section.
12. (canceled)
13. The method as claimed in claim 11, wherein one or more of the plurality of elongated apertures have a dumbbell shape with a slit and two openings formed at two ends of the slits respectively.
14. (canceled)
15. The method as claimed in claim 11 further comprising: providing a mesh; and supporting the mesh on one or more first anchors between the first mold and the second mold during the injection of the foam material, such that the mesh is joined with the core layer from at least one of an inner side and an outer side thereof when the foam material is cured.
16. The method as claimed in claim 11 further comprising: providing an underwire; and supporting the underwire on one or more second anchors between the first mold and the second mold during the injection of the foam material, such that the underwire is embedded within the core layer when the foam material is cured.
17. The method as claimed in claim 11, further comprising: providing a fabric sheet which is to be part of an inner layer of the bra cup; and providing a fabric sheet which is to be part of an outer layer of the bra cup; wherein the foam material is injected between the fabric sheet of the inner layer and the fabric sheet of the outer layer such that the formed core layer is joined therewith when the foam material is cured.
18. A bra cup for a brassiere to be worn by a wearer, the bra cup comprising: a core layer formed of a foam material and having a three-dimensional configuration so as to conform to a breast of the wearer when the brassiere is worn, the core layer having an inner side and an outer side; a plurality of apertures formed in the core layer, the plurality of apertures extending between the inner side and the outer side of the core layer; and a plurality of protrusions defined in the core layer towards the inner side thereof, wherein the protrusions are arranged in a matrix form such that one or more of the plurality of apertures are surrounded by three or more protrusions at the inner side of the core layer; wherein the plurality of apertures comprises: a plurality of elongated apertures formed in a frontal area of the bra cup; and a plurality of circular holes formed in a lateral area of the bra cup wherein one or more of the plurality of elongated apertures have a dumbbell shape with a slit and two openings formed at two ends of the slits respectively, such that each of the one or more of the plurality of elongated apertures allows for expansion of the core layer along a direction substantially orthogonal to a direction of extension of the corresponding slit therein; and wherein one or more of the plurality of circular holes in a lower portion of the lateral area have a truncated conical cross-section with a relatively larger diameter towards the inner side of the core layer and a relatively smaller diameter towards the outer side of the core layer.
19-21. (canceled)
22. The bra cup as claimed in claim 18, wherein the plurality of protrusions comprises a first set of protrusions with substantially square shape and a second set of protrusions with substantially parallelogram shape, and wherein the first set of protrusions are located in a frontal area of the bra cup and the second set of protrusions are located in a lateral area of the bra cup.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] For a more complete understanding of example embodiments of the present disclosure, reference is now made to the following descriptions taken in connection with the accompanying drawings in which:
[0028]
[0029]
[0030]
[0031]
[0032]
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
DETAILED DESCRIPTION
[0042] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. It will be apparent, however, to one skilled in the art that the present disclosure can be practiced without these specific details. In other instances, apparatuses and methods are shown in block diagram form only in order to avoid obscuring the present disclosure.
[0043] Reference in this specification to one embodiment or an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. The appearance of the phrase in one embodiment in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Further, the terms a and an herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but not for other embodiments.
[0044] The embodiments are described herein for illustrative purposes and are subject to many variations. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but are intended to cover the application or implementation without departing from the spirit or the scope of the present disclosure. Further, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting. Any heading utilized within this description is for convenience only and has no legal or limiting effect.
[0045] Where reference herein is made to interior and exterior or similar terminology in relation to component parts or items of the bra or part of the bra, it is meant to be understood to be in relation to the body of the wearer of the bra. For example, the interior or inner side or inner region is a relative term to denote that an item is more proximate the face side of the bra that is more proximate to the body of the wearer than items of the bra that are more distal the body of the wearer. Inner does not mean inner most unless specified. This similarly applies to terms such as outer or exterior.
[0046] Where there is reference to the word layer it is to be understood that it may have its common definition and, but not limited to that the layer could consist of one panel or may have regions that are defined by two or more panels that are joined and that may each be of a different characteristic (e.g. color, thickness, material, orientation, size).
[0047] Referring to the drawings,
[0048] In one embodiment of the present disclosure, the bra cup 104 is a multi-layer structure.
[0049] In the brassiere 100, the core layer 112 is made of foam material. The foam material provides the flexibility to the core layer 112, and thereby the bra cup 104 which is required for conforming to the breast of the wearer, when the brassiere 100 is worn. In one or more embodiments, the foam material includes one of polyurethane-based material, silicone-based material, latex-based material and rubber-based material. Preferably, the foam material includes one of thermoplastic rubber (TPR), thermoplastic polyurethane (TPU), silicone, ethylene vinyl acetate (EVA), polyvinyl chloride (PVC) and polypropylene (PP). Further, in one embodiment, both of the inner layer 114 and the outer layer 116 includes a fabric sheet (not shown). In other embodiments, both of the inner layer 114 and the outer layer 116 includes a fabric sheet (not shown) and a foam sheet (not shown). In such case, the fabric sheet and the foam sheet may be laminated and co-extensive with each other. The inner layer 114 and the outer layer 116 are arranged with respect to the core layer 112 such that the foam sheets thereof are in contact with the inner side 112a and the outer side 112b of the core layer 112 and thereby the fabric sheets thereof form the exterior surfaces of the bra cup 104, when the brassiere 100 is in its completed form.
[0050] In one example, the fabric sheets may be a product known by model number CMF-7440MU of Friendly Foundate Ltd. and having a make-up of approximately 80% Tactel and 20% Lycra, and of a weight of, for example, about 190 g/sqm. Further, the foam sheets are preferably of a polyurethane foam such as, for example, EL58-4S of Inoac Corporation which is a memory foam. In some examples, the fabric sheet and the foam sheet of the corresponding layer may be laminated together using an adhesive, such as glue HM-1 of Forbo Swift Adhesives SA. The adhesive may be sprayed onto at least one of the opposing facing surfaces of the fabric sheet and the foam sheet. The adhesive may stick the fabric sheet and the foam sheet together when dry without heating, to form the corresponding panels for the inner layer 114 and the outer layer 116.
[0051] Further, as illustrated in
[0052]
[0053] In the present embodiment, the apertures 122 formed in the lateral area 102b of the bra cup 104 in the core layer 112 have a truncated conical cross-section, while the apertures 122 formed in the frontal area 102a of the bra cup 104 in the core layer 112 have a substantially cylindrical cross-section. In other words, the apertures 122 formed in the lateral area 102b have a relatively larger diameter towards the inner side 112a of the core layer 112 and a relatively smaller diameter towards the outer side 112b of the core layer 112. In one or more embodiments, only the apertures 122 formed in a lower portion (generally shown with numeral 102d in
[0054]
[0055]
[0056] As may be seen in
[0057]
[0058] As may be seen in
[0059]
[0060]
[0061] In one or more embodiments, the plurality of protrusions 134 includes a first set of protrusions 134a with substantially square shape and a second set of protrusions 134b with substantially parallelogram or rhombus shape, such that the first set of protrusions 134a are disposed proximal to the bridge region 106 of the bra cup 104 in the core layer 112 (i.e. towards a middle of the bra cup region 102) and the second set of protrusions 134b are disposed away from the bridge region 106 of the bra cup 104 in the core layer 112 (i.e. towards edges of the bra cup region 102). It may be understood that the change in shape of the protrusions 134 as moving away from the bridge region 106 of the bra cup 104 provides better fit of the bra cup 104 (with the three-dimensional configuration of the core layer 112) over the breast of the wearer, when the brassiere 100 is worn. In other examples, the protrusions 134 may have different shapes, such as but not limited to, circular, elliptical, triangular, hexagonal, or the like without any limitations. Further, in one or more examples, one or more of the apertures 132 have a truncated cross-section, similar to the apertures 122 in the lower portion 102d of the lateral area 102b of the bra cup 104, as discussed in reference to
[0062] It may be understood that a top of the protrusion 134 is in contact with the inner layer 114, when the brassiere 100 is in its completed form. Further, the ventilation space is created where protrusions 134 are absent; that is, in the grooves 136 at the inner side 112a of the core layer 112. The protrusions 134 in the core layer 112 further result in less material being used for the core layer 112 (due to the grooves 136 formed therein), which results in reduced weight of the core layer 112 and hence of the bra cup 104, without compromising the support provided to the breasts of the wearer, when the brassiere 100 is worn. As better illustrated in
[0063] In one or more embodiments of the present disclosure, the three layers 112, 114, 116 are either loose with respect to each other or affixed to each other. Preferably, the three layers 112, 114, 116 are molded together using known heat molding techniques involving the application of heat and pressure to form the bra cup 104. The core layer 112, the inner layer 114 and the outer layer 116 may be separately pre-molded and later joined together to form the bra cup 104. In one or more examples, the three layers 112, 114, 116 may be bonded or laminated during the molding process simply by the application of heat and pressure, or may additionally involve the use of an adhesive to facilitate bonding of the layers. The employed bonding techniques may depend largely on the nature of the various layers. In one example, the adhesive may be a glue such as RM-30 of Ultra Energy Adhesive Trading Co., Ltd. The adhesive may be sprayed on the inner side 112a and the outer side 112b of the core layer 112 and the corresponding facing surfaces of the inner layer 114 and the outer layer 116. The molding process may involve use of heat and pressure for joining together the three layers 112, 114, 116 together, and further aid with drying of the adhesive glue. For example, this adhesive may not get dry and sticky until heated, but then stick to join the three layers 112, 114, 116 when heated during the molding process. Further, the three layers 112, 114, 116 may be joined together by ultrasonic welding or the like. The following paragraphs explain in detail the molding setup and process for forming the core layer 112 (in accordance with the said third embodiment of
[0064]
[0065] In some embodiments, as illustrated, the mesh 118 may be placed between the first mold 702 and the second mold 704 so that the mesh 118 may be integrally formed with the core layer 112. For this purpose, the mesh 118 may be supported in a frame 708 to be kept stretched during the molding process. Further, one or more first anchors 710 may be provided with one or more of the first mold 702 and the second mold 704 to maintain a gap (generally equivalent to a thickness of the core layer 112) with one of the first mold 702 and the second mold 704, such that the mesh 118 is formed with one of the inner side 112a and the outer side 112b (as desired), when the foam material is cured. It may be understood that the mesh 118 helps with curing of the foam material into the shape of the core layer 112 without breaking. In some embodiments, as illustrated, the underwire 120 is supported on one or more second anchors 712 provided with either the first mold 702 or the second mold 704 (shown with the second mold 704 in the illustrated example) at a height (generally equivalent to half of a thickness of the core layer 112) so that the underwire 120 is embedded within the core layer 112, when the foam material is cured.
[0066] It may be contemplated by a person skilled in the art that the core layer 112 as provided in other above-mentioned embodiments (such as, for example, in reference to
[0067] In the present brassiere 100, the bra cup 104 with apertures and protrusions formed in the core layer 112 thereof enhances the ventilation and air permeability of the bra cup 104. In addition, the bra cup 104 of the present disclosure with multi-layer structure provides higher deformability to conform to varying sized and shaped breasts, as compared to bra cup with a single thin foam layer as conventionally known in the art. The bra cup 104 being primarily formed from the foam material and generally light fabric sheets may be light-weight, and thus make the present brassiere 100 light in comparison to conventional brassieres. Therefore, the present brassiere 100 may provide enhanced comfort to the wearer, when worn. The present bra cup 104 further evenly distributes pressure caused by the weight of the brassiere 100 to the breasts of the wearer, thereby further enhancing comfort during long use.
[0068] Molding of the bra cup 104 may substantially simplify the otherwise complicated process of stitching various layers together. The bra cup 104 may be manufactured substantially without or with no significant stitching. This may result in significant savings in labor cost which may otherwise be needed for manual stitching of the various layers together. The implementation of injection molding for forming the core layer 112 results in even distribution of the foam material in the core layer 112 between thin and thick sections of the bra cup 104. This even density distribution of the foam material in the core layer 112 may enhance the stability of the overall brassiere 100, when worn. This further enhances the ability of the bra cup 104 to absorb impacts, including torsional and compressive forces. The fabric sheets of the inner layer 114 and the outer layer 116, which form the exterior surface of the bra cup 104, may provide breathable material in contact with the skin of the wearer, when the brassiere 100 is worn. This may help to absorb and disperse moisture from the skin to some extent, thereby further enhancing comfort for the wearer. Such fabric sheets may further be formulated with anti-microbial chemicals, which may improve hygiene conditions.
[0069] The foregoing descriptions of specific embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiment was chosen and described in order to best explain the principles of the present disclosure and its practical application, to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated.