SOCK HAVING RAISED FEATURES, A MOLD ASSEMBLY AND A METHOD OF MANUFACTURE
20210251304 · 2021-08-19
Inventors
Cpc classification
A41B11/007
HUMAN NECESSITIES
International classification
Abstract
A sock having raised features includes one or more three-dimensional paw pads affixed thereon. More in particular, a plurality of individual three-dimensional paw pads are affixed to a bottom portion of the sock to provide a visual effect of having animal paws, and to further provide a wearer a tactile sensation of having animal paws on the wearer's foot while walking. A mold assembly and a method for the manufacture of a plurality of three-dimensional paw pads to be affixed to a sock includes at least one mold.
Claims
1. A sock having raised features to be worn by a person comprising: a sock body including a sock bottom surface having a sock toe portion and an oppositely disposed sock heel portion; a plurality of pads affixed proximate said sock toe portion; and said plurality of pads arranged to provide a visual effect and a tactile sensation to the person wearing said sock.
2. The sock as recited in claim 1, wherein said plurality of pads are affixed to said sock bottom surface proximate said sock toe portion.
3. The sock as recited in claim 1, wherein said plurality of pads are securely affixed to said sock bottom surface proximate said sock toe portion with an adhesive.
4. The sock as recited in claim 1, wherein said plurality of pads are formed of a urethane foam material.
5. The sock as recited in claim 1, wherein said plurality of pads are formed of a polyurethane foam material.
6. The sock as recited in claim 1, wherein said plurality of pads further provide an audible effect as said plurality of pads compress and decompress as the person wearing said sock walks.
7. The sock as recited in claim 1, wherein said plurality of pads comprise a plurality of three-dimensional pads.
8. The sock as recited in claim 1, wherein said plurality of pads comprise a plurality of three-dimensional paw pads.
9. The sock as recited in claim 8, wherein said plurality of three-dimensional paw pads are at least partially defined by a pad height, a pad length, and a pad width.
10. The sock as recited in claim 8, wherein said plurality of three-dimensional paw pads are arranged on said sock bottom surface to provide said visual effect representative of an animal paw.
11. The sock as recited in claim 8, wherein said plurality of three-dimensional paw pads are arranged on said sock bottom surface to provide said tactile sensation representative of an animal paw.
12. A mold assembly for forming a plurality of three-dimensional paw pads to be affixed to a sock comprising: a base; a multi-member portion mountable onto said base, said multi-member portion comprising: a mold having at least one individual paw pad mold impression formed therein for receiving an amount of material from which said plurality of three-dimensional paw pads are formed; a pressure backing member having at least one first pressure relief vent formed therethrough; a paw pad backing member disposed between said mold and said pressure backing member and having at least one second relief vent formed therethrough and aligned over said at least one individual paw pad mold impression and with said first pressure relief vent formed through said pressure backing member; and a plurality of alignment members interconnected to said base to facilitate alignment of said pressure backing member and said paw pad backing member with said mold; and a plurality of fasteners each operable with a corresponding one of said plurality of alignment members to at least temporarily secure said multi-member portion to said base.
13. The mold assembly as recited in claim 12, wherein said mold comprises a plurality of individual paw pad mold impressions formed therein for receiving an amount of material from which each of said plurality of three-dimensional paw pads are formed.
14. The mold assembly as recited in claim 13, wherein said pressure backing member comprises a plurality of first pressure relief vents formed therethrough with at least one first pressure relief vent corresponding to a different one of each of said plurality of individual paw pad mold impressions.
15. The mold assembly as recited in claim 14, wherein said paw pad backing member comprises a plurality of second relief vents formed therethrough, wherein at least one of said plurality of second relief vents is aligned over a different one of said plurality of individual paw pad mold impressions and with a corresponding one of said plurality of first pressure relief vents formed through said pressure backing member.
16. The mold assembly as recited in claim 12, wherein said mold comprises a plurality of mold alignment apertures disposed therethrough, each of said plurality of mold alignment apertures dimensioned to receive a corresponding one of said plurality of alignment members therethrough to align said mold in an operable orientation relative to said base.
17. The mold assembly as recited in claim 12, wherein said paw pad backing member comprises a plurality of paw pad backing alignment apertures disposed therethrough, each of said plurality of paw pad backing alignment apertures dimensioned to receive a corresponding one of said plurality of alignment members therethrough to align said paw pad backing member in an operable orientation relative to at least said mold.
18. The mold assembly as recited in claim 12, wherein said pressure backing member comprises a plurality of pressure backing alignment apertures disposed therethrough, each of said plurality of pressure backing alignment apertures dimensioned to receive a corresponding one of said plurality of alignment members therethrough to align said pressure backing member in an operable orientation relative to at least said paw pad backing member.
19. The mold assembly as recited in claim 12, wherein said plurality of fasteners are further operable with a corresponding one of said plurality of alignment members to apply pressure to said pressure backing member to facilitate compression of said amount of material in said individual paw pad mold impression during formation of at least one of said plurality of three-dimensional paw pads therein.
20. A method of manufacturing a sock having a plurality of three-dimensional paw pads affixed thereto, the method comprising: positioning a mold having a plurality of individual three-dimensional paw pad mold impressions formed therein onto a base; pouring an amount of material from which each of the three-dimensional paw pads are to be formed into each of the plurality of individual three-dimensional paw pad mold impressions; aligning a paw pad backing member over the mold such that at least one of a plurality of pressure relief vents formed through the paw pad backing member is disposed over each of the plurality of individual three-dimensional paw pad mold impressions having the amount of material therein; aligning a pressure backing member over the paw pad backing member such that at least one of a plurality of pressure relief vents formed through the pressure backing member is disposed over a corresponding one of the plurality of pressure relief vents formed through the paw pad backing member; compressing the pressure backing member, the paw pad backing member and the mold together thereby compressing the amount of material in each of the plurality of individual three-dimensional paw pad mold impressions; venting excess amounts of the material in each of the plurality of individual three-dimensional paw pad mold impressions through corresponding ones of the pressure relief vents formed through the paw pad backing member and the pressure relief vents formed through the pressure backing member; allowing each of the plurality of three-dimensional paw pads to cure within corresponding ones of the plurality of individual three-dimensional paw pad mold impressions while compressing the pressure backing member, the paw pad backing member and the mold together; releasing each of the plurality of three-dimensional paw pads after curing from corresponding ones of the plurality of individual three-dimensional paw pad mold impressions; arranging at least some of the plurality of three-dimensional paw pads on a sock bottom surface proximate a sock toe portion of the sock; and securely affixing the plurality of three-dimensional paw pads onto the sock bottom surface proximate the sock toe portion with an amount of adhesive.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The various embodiments of the invention will hereinafter be described in conjunction with the appended drawings provided to illustrate and not to limit the invention, where like designations denote like elements, and in which:
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[0030] Like reference numerals refer to like parts throughout the several views of the drawings.
DETAILED DESCRIPTION
[0031] The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. As used herein, the word “exemplary” or “illustrative” means “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” or “illustrative” is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. For purposes of description herein, the terms “upper”, “lower”, “left”, “rear”, “right”, “front”, “vertical”, “horizontal”, and derivatives thereof shall relate to the invention as oriented in
[0032] Shown throughout the figures, in one embodiment, the present invention is directed toward a sock having a plurality of three-dimensional paw pads thereon, and in one further embodiment, the present invention is directed to an apparatus and method for the manufacture thereof.
[0033]
[0034] As further shown in the illustrative embodiment of
[0035] As shown in
[0036] With continued reference to
[0037] The illustrative embodiments of
[0038] In at least one embodiment, each three-dimensional paw pad has a length, height, width as determined by the individual mold impressions 120 formed within the mold 118 and an elasticity defined by the mold material 124. In some embodiments, the mold 118 may be fabricated from silicone and the mold impressions 120 may be formed using resin casted duplicates of original clay sculptures, for example, oil-based non-drying clay, of the desired paw pads in terms of shape and size. Further, illustratively, the mold material 124 may be a urethane foam mixture that expands and facilitates the formation the three-dimensional paw pads with a desired shape and elasticity in accordance with the embodiment. In a further embodiment, the mold material 124 is a polyurethane foam mixture. In this way, when the wearer of the sock configured in accordance with the embodiments herein walks across a surface, the three-dimensional paw pads will compress and decompress providing tactile feedback to the user including an audible sound, e.g., a “squishing” feeling and sound, thereby simulating actual animal paws.
[0039] The illustration of
[0040] Next, the pressure backing member 106 is been positioned over the paw pad backing member 114 and the mold 118 in alignment via the alignment members 119 which are inserted through the alignment apertures 107 in the pressure backing member 106, such that the paw backing member 114 is sandwiched between the mold 118, having mold impressions 120 filled with amounts of mold material 124, and the pressure backing member 106, after which, pressure is applied onto the pressure backing member 106. For instance, as shown in
[0041] In one embodiment, the mold material 124 is an expanding urethane foam. Urethane foam is commercially available and is a commonly used two part expanding foam having good thermal insulation and expansion characteristics, such that the urethane foam will conform to the shape of a cavity or a form into which the material is poured, such as, a plurality of mold impressions 120 of mold 118. Urethane foam is also soft in terms of texture to provide comfort to the wearer of the sock manufactured in accordance with the present invention. The molded material 124 is also substantially tear proof once cured, thereby providing important wear characteristics for the sock features herein. In a further embodiment, the mold material 124 is an expanding polyurethane foam that provides similar advantages as described above with respect to the expanding urethane foam. Typically, a urethane foam product is mixed and applied at room temperature with an optimum temperature of about 24 to about 27 degrees Celsius. If the ambient temperature is too cold, the reaction is inhibited and in such cases, the urethane will shrink back after rising, losing much of its strength. Further, a two part urethane foam must be poured immediately after a quick mixing together of the component parts. The cavities or a forms to be filled, e.g., the plurality of mold impressions 120 of mold 118, must be clean and accessible, and prepared ahead of time. All surfaces should be clean of contaminants for proper bonding. As will be appreciated, urethane foam will expand, e.g., 20:1 by volume. In doing so the material can exert, for example, as much as thirty kilopascals or more of pressure in a contained area. As detailed herein, the first set of pressure relief vents 112 and the second set of pressure relief vents 116 are provided, inter alia, to permit the release of pressure buildup during fabrication of a plurality of three-dimensional paw pads in the mold impressions 120 of a mold 118.
[0042] As shown in
[0043] As is well known, an animal paw is a soft foot-like part of a mammal having paw pads. The pads act as a cushion for the load-bearing limbs of the animal. A paw generally consists of a large, heart-shaped metacarpal paw pad at the paw's center, and which is generally surrounded by, in part, four load-bearing digital paw pads that are smaller in size than the metacarpal paw pad. As is well-known, animals with paws include felids such as cats and tigers, canids such as dogs and foxes, rabbits, bears and raccoons, to name just few.
[0044] The illustration of
[0045] The illustrative embodiment of
[0046] The illustrative embodiment of
[0047] Each paw pad of the plurality of three-dimensional paw pads 140 has a substantially similar thickness 142 resulting from the fabrication steps detailed herein above. In some embodiments, a height 142 may have a thickness of approximately 2 centimeters, e.g., 1.9 centimeters. Once adhered to a sock 200, a plurality of three-dimensional paw pads 140 are raised and extend away from the sock toe portion 202 and, therefore, from the sock body 204 of the sock 200 as well, and are alternatively compressed and decompressed when the wearer of sock 200 walks across a surface. Advantageously, in accordance with at least one embodiment, the sock 200 delivers a certain tactile feedback to the wearer, essentially a sponge-like sensation, in addition to providing a visual effect and appearance that a wearer's foot or feet have animal paw pads. Given the elasticity of the plurality of three-dimensional paw pads 140 and their raised features on a sock 200, a wearer may also discern certain audible feedback as the three-dimensional paw pads 140 compress and decompress while the wearer is walking while donning the sock or socks 200.
[0048] In summary, as detailed above, a method of fabricating a plurality of three-dimensional paw pads 140 and a sock or socks 200 having the plurality of three-dimensional paw pads 140 securely affixed thereto comprises providing a mold assembly 100 for fabricating the plurality of three-dimensional paw pads 140 from an amount of mold material 124, e.g., foaming urethane. The mold assembly 100, in at least one embodiment, comprises: a base 104; a mold 118 for accepting an amount of mold material 124 for forming a plurality of three-dimensional paw pads 140, the mold 118 having one or more individual paw pad mold impressions 120 thereon for retaining the amount of mold material 124 from which the individual three-dimensional paw pads 140 will be formed; a pressure backing member 106 having a first plurality of pressure relief vents 112 formed therethrough, wherein each individual pressure relief vent 112 is aligned with a respective one of the individual paw pad mold impressions 120; a paw pad backing member 114 having a second plurality of pressure relief vent 116 formed therethrough, wherein each individual pressure relief vent 116 is aligned with a respective one of the plurality of pressure relief vents 112 in the pressure backing member 106, the paw pad backing member 114 being disposed between the pressure backing member 106 and the mold 118; one or more alignment members 108 and corresponding fasteners 110, such as, by way of example, wing nuts such as are shown throughout the figures, to hold the individual portions of the mold assembly 100 together with the base 104 and applying pressure thereto; and, one or more clamps 126 or other pressure-exerting tool for applying pressure, which may optionally be applied in combination with the alignment members 108 and fasteners 110.
[0049] The method, in one further embodiment, comprises pouring an amount of mold material 124 into one or more paw pad mold impressions 120 of a mold 118 and applying pressure via a plurality of clamps 126, which may be in combination with alignment members 108 and corresponding fasteners 110, or other such fastener, and allowing the mold material 124 to cure. After which, a plurality of three-dimensional paw pads 140 may be removed from the mold 118 with a portion of the fabric backing of the paw pad backing member 114 intact and affixed to each of the plurality of three-dimensional paw pads 140 upon extraction from the mold assembly 100. Select ones of the plurality of three-dimensional paw pads 140, such as, by way of example, a total of five (5) three-dimensional paw pads 140, so as to represent and construct a desired paw pattern, are removed, e.g., by cutting, individually with the fabric backing of the paw pad backing member 114 intact and affixed thereto. The individual three-dimensional paw pads 140 are then adhered to a sock 200 by applying an adhesive to permanently bond each of the individual three-dimensional paw pads 140 to the sock 200.
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[0051] Alternative embodiments are contemplated to those depicted herein. For instance, the three-dimensional paw pads 140 may be made with different color orientations to contrast with or match the sock color to which the paw pads are affixed. In another example, the various steps of the method of manufacture described herein may be manually performed or automated in nature. Further embodiments are contemplated in which the present mold assembly 100 and method are used to provide protruding pads to an item other than a sock 200.
[0052] Since many modifications, variations, and changes in detail can be made to the described embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalents.