The present invention relates generally to earrings and more particularly to hypoallergenic pierced earrings typically, but not necessarily, worn in a pierced earlobe of a human being.
Many earrings and particularly relatively inexpensive earrings are made of a metal alloy with nickel and when worn for a period of time on a pierced body part, such as an earlobe, cause an allergic reaction in a significant number of human beings. Persons with a nickel allergy usually begin to develop a skin reaction within 6 to 48 hours after coming into contact with an earring containing nickel or a nickel alloy. Typical symptoms of a nickel allergy may include a skin rash or bumps, redness or other changes in skin color, dry patches on the skin that resemble a burn, itching, and blisters. In relatively rare cases a nickel allergy can also lead to respiratory problems including a runny nose, nasal inflammation, asthma, and sneezing. Most low cost earrings currently available in the market include nickel or other metals that cause irritation of the skin of those with a metal allergy. Commercially available hypoallergenic earrings that do not irritate the skin of human beings are made in one piece of precious metals principally argentium sterling silver, fine silver, silver, 14 karat and above yellow gold, gold, platinum and palladium which do not contain any nickel alloy. These one piece earrings are quite expensive and have a limited variety of ornamental designs or appearances.
In at least some implementations, a hypoallergenic earring for a pierced ear may have an ornamental piece removably connected by a fastener to an ear piece of a non-allergenic material and removably connectable to a pierced ear. A variety of different ornamental pieces may be removably connected one at a time to the same ear piece to provide a variety of earrings with a different ornamental appearance.
In at least some implementations, the ear piece may be in the form of a stud, a hook or an ear wire for removable attachment to a pierced ear. In some implementations, the fastener may be in the form of a complimentarily threaded stud and a portion of the ornamental piece or a hook and eye assembly releasably connecting the ornamental piece to the ear piece. The hook may have a releasable latch to releasably retain the hook in engagement with the eye at least while the earring is being worn.
The following detailed description of certain embodiments and best mode of earrings which will not cause a metal allergy in allergenic persons will be set forth with reference to the accompanying drawings, in which:
The stopper or ear back 12 may be a strip of resilient flexible material with curled ends and a central hole of sufficient diameter so that the pin can be slidably received through the hole and between the curled ends to releasably frictionally retain the stopper on the pin 18 of the post 14.
In accordance with this invention the stopper 12 and post 14, including the pin 18 and the head 20 are made of a non-allergenic plastic material or desirably a metal which does not have more than 0.05% of nickel therein on a weight or mass basis and a release or migration rate of the nickel when in contact with a pierced ear or other human body part of not more than 0.2 μg/cm2/week as measured by the European Union EN 1811:2011 Test
Method and the REACH Regulation, specifically item 27 of Annex XVII to that regulation. Typically the metal of the stopper and post may be a surgical grade stainless steel, a noble metal, or typically gold, silver, platinum, palladium, titanium and alloys thereof, which essentially do not have any nickel and, in any event, have a nickel or other allergen metal migration or release rate when in contact with the skin of a pierced human body part of not more than 0.2 μg/cm2/week. The head 20 of the post prevents the ornamental ball 16 from coming into any prolonged contact with the wearer's skin when the earring is received in a pierced earlobe or other human body part disposed between the head and the stopper 12. Therefore, the ornamental ball 16 may be made of relatively inexpensive materials including, without limitation, various metals which contain more than 0.05% nickel by weight and have a greater migration or release rate of the nickel than that noted above and thus could cause an allergic reaction in some humans.
With this construction the ornamental ball 16 may be disconnected and removed from the post 14 and a different ornamental piece having a complementarily threaded blind hole connected and secured to the threaded shank 22. With this construction and arrangement a wearer or user of the earring 10 may have a large variety of different ornamental pieces, each of which can be releasably connected to, and removed from, the post 14. This provides a desirable wide variety of earrings having a different ornamental appearance by simply changing the ornamental piece 16 and using each ornamental piece with the same post 14 which greatly reduces the cost and makes more affordable non-allergenic earrings.
The ornamental piece 34 is removably connected to the hook 32 by a fastener 50. The fastener may have a hook 52 pivotally connected to a tang 54 attached to the ornamental piece 34 and with the tang and hook having generally L-shaped complementary catches 56 and 58 which releasably interlock. The hook may be made of a resilient and flexible material so that the catch 56 cams or slides over the catch 58 and snaps into underlying engagement with it. The ornamental piece 34 and the fastener 50 may be made of any suitable material which need not be non-allergenic. The hook 32 is made of a non-allergenic plastic or metal such as the noble metals and plastic materials noted above.
The stopper or ear back 12′ may be a strip of resilient flexible material with curled ends 108 and a central hole of sufficient diameter so that the pin 95 can be slidably received through the hole and between the curled ends to releasably frictionally retain the stopper on the pin 95 of the post 92. To facilitate retention of the ear back 12′ on the post, the pin 95 may have one or more grooves 106 in which the curled end portions 108 of the ear back 12′ may be received.
In accordance with this invention, the stopper 12′ and post 92 including the pin 95 and the head 96 are made of a non-allergenic plastic material or desirably a non-allergenic metal which does not have more than 0.05% of nickel therein on a weight or mass basis and a release or migration rate of the nickel when in contact with a pierced ear or other human body part of not more than 0.2 μg/cm2week as measured by the European Union EN 1811:2011 Test Method and the REACH Regulation, specifically item 27 of Annex XVII to that regulation. Suitable non-allergenic plastic materials and metals are noted above and will not be repeated here. The head 96 of the post 92 may be configured to prevent the ornamental ring 94 from coming into any prolonged contact with the wearer's skin when the earring 90 is received in a pierced earlobe or other human body part disposed between the head 96 and the stopper 12′. Therefore, the ornamental ring 94 may be made of relatively inexpensive materials including, without limitation, various metals which contain more than 0.05% nickel by weight and have a greater migration or release rate of the nickel than that noted above and thus could cause an allergic reaction in some humans. If desired, the ornamental ring 94 may be set with real or imitation gems, stones, pearls, or the like 110, 112 in an ornate metal ring 114 to provide an ornamental appearance.
In all forms of the earring the ear piece (post 14 and stop 12, hook 32, ear wire 64, post 92 and stop 12′) or other ear attachment piece which comes into contact with a wearer's skin, is made of a non-allergenic material such as a surgical plastic material, noble metal, titanium or surgical stainless steel, and the removably connected ornamental piece 16, 34, 62, 94 which normally does not come into contact with a wearer's skin may be made of allergenic materials which may be relatively inexpensive. This construction and arrangement provides relatively inexpensive earrings since the same non-allergic ear piece may be used and worn with a wide variety of different ornamental pieces which may be made of allergenic material for use with a single non-allergenic ear piece having a migration rate of nickel or other allergenic constituent of not more than 0.2 μg/cm2/week to thereby avoid an allergic skin reaction from contact therewith. For many metal allergies, once a wearer's skin becomes sensitized to nickel or other metal allergens, the user's skin is sensitized for a lifetime. Thus, once a user's skin becomes sensitized, such a user must be very careful to avoid any further contact with a metal allergen.
This application claims the benefit of U.S. Provisional Application Ser. No. 62/361,107, filed Jul. 12, 2016, which is incorporated herein by reference in its entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/US2017/041527 | 7/11/2017 | WO | 00 |
Number | Date | Country | |
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62361107 | Jul 2016 | US |