System for retaining a piercing without a clasp

Abstract

The invention relates to a monolithic piercing (1) designed to be inserted in a previously pierced hole in the skin of a user, the piercing comprising: •—a tip (110), configured to allow guiding and suitable presentation of an expansion bulb during its insertion into the hole in the skin; •—the expansion bulb, (120), having an ovoid profile and variable cross-section having a plurality of different perimeters, only one of which is maximum, the bulb (120) being configured to ensure a gradual and painless expansion of the skin during guiding of the piercing into the hole; •—a rod (200) configured to adapt to the tunnel hole of the skin and enabling support of the piercing; •—an end portion (300) consisting of an ornamental relief, which has a volume and/or a characteristic dimension that is sufficiently large to prevent the piercing from passing through the hole in the skin; and •—wherein the tip (110), the bulb (120) and the rod (200) cooperate in order to ensure a triple function of insertion, holding in place and removal of the piercing allowed by the guiding and expansion of the hole; •—wherein the perimeter PB of any cross-section of the bulb (120) is greater than the perimeter PP of any cross-section of the tip (110) and than the perimeter PT of any cross-section of the rod (200); and •—wherein the weight of the ornamental end portion (300) is less than or equal to the combined weight of the tip (110) and the bulb (120).

1 . A monolithic piercing ( 1 ), intended to be inserted into a previously pierced hole in the skin of a user, the piercing comprising:
 a tip ( 110 ), configured to allow guidance and suitable presentation of a bulb of dilation upon insertion into said skin hole;   a dilation bulb ( 120 ), having an ovoid profile, of cross-section of variable shape, having several different perimeters of which only one is maximum, said bulb ( 120 ) being configured to ensure a progressive and painless dilation of the skin during guiding piercing in the hole;   a stem ( 200 ) configured to match the length and diameter of the skin tunnel hole and provide support for the piercing; and   an ornamental end portion ( 300 ) constituting an ornamental pattern having a sufficiently large volume and/or characteristic dimension to prevent the piercing from passing through the skin hole;   wherein the tip ( 110 ), the bulb ( 120 ) and the stem ( 200 ) cooperate to ensure a triple function of insertion, holding in place and removal of the piercing permitted by the guidance and the dilation of the hole; and   wherein the perimeter PB of any cross section of the bulb ( 120 ) is greater than the perimeter PP of any cross section of the tip ( 110 ) and the perimeter PT of any cross section of the stem ( 200 ); and   wherein the weight of the ornamental end portion ( 300 ) is equal, with a 10% tolerance, to the combined weight of the tip ( 110 ) and the bulb ( 120 ); and   wherein the ratio between the maximum perimeter PB of the bulb ( 120 ) and any perimeter PT of the stem ( 200 ) is between 1.3 and 2.1 and rather between 1.5 and 1.9 and preferably equal to 1.7; and   wherein the angle α formed by the tangent to the bulb ( 120 ) from any point of the first remarkable perimeter ( 410 ), located between the tip ( 110 ) and the bulb ( 120 ), and by the first longitudinal direction L 1  of the tip ( 110 ) is between 135° and 180°; and   wherein the angle β formed by the tangent to the bulb ( 120 ) from any point of the second remarkable perimeter ( 510 ), located between the bulb ( 120 ) and the stem ( 200 ), and by the first direction longitudinal L 1  of the tip ( 110 ) is between 90° and 135°.   
     
     
         2 . The piercing ( 1 ) according to  claim 1 , wherein the tip ( 110 ) and the bulb ( 120 ) extend along a first longitudinal direction (L 1 ), and the stem ( 200 ) extends along a second longitudinal direction (L 2 ). 
     
     
         3 . The piercing ( 1 ) according to  claim 2 , in which the bulb ( 120 ) comprises at least one flat. 
     
     
         4 . The piercing ( 1 ) according to  claim 1  wherein the stem is curved. 
     
     
         5 . A monolithic and rigid (FUN) piercing, made in one piece, without any removable part, without mechanism, intended to be inserted into a previously pierced skin hole of a user, the piercing comprising:
 a tip ( 1100 ), configured to allow proper guidance and presentation of a dilatation bulb during insertion into said skin hole;   a dilation bulb ( 1200 ), having an oblong profile, of cross-section of variable shape, having several different perimeters of which only one is maximum, said bulb ( 1200 ) being configured to ensure a progressive and painless dilation of the skin during guiding piercing in the hole;   a stem ( 2000 ) configured to match the length and diameter of the skin tunnel hole and provide support for the piercing; and   an ornamental end portion ( 3000 ) constituting an ornamental pattern having a volume and/or a characteristic dimension large enough to prevent the piercing from passing through the skin hole; and   wherein the tip ( 1100 ), the bulb ( 1200 ) and the stem ( 2000 ) cooperate to ensure a triple function of insertion, holding in place and removal of the piercing permitted by the guidance and the dilation of the hole; and   wherein the perimeter PB of any cross section of the bulb ( 1200 ) is greater than the perimeter PP of any cross section of the tip ( 1100 ) and the perimeter PT of any cross section of the stem ( 2000 ); and   wherein the weight of the ornamental end portion ( 3000 ) is 1.5 to 3 times less than the combined weight of the tip ( 1100 ) and the bulb ( 1200 ); and   wherein the ratio between the maximum perimeter PB of the bulb ( 1200 ) and any perimeter PT of the stem ( 2000 ) is between 1.3 and 2.1; and   wherein the angle α formed by the tangent to the bulb ( 1200 ) from any point of the first remarkable perimeter ( 4100 ), located between the point ( 1100 ) and the bulb ( 1200 ), and by the first direction longitudinal L 1100  of the tip ( 1100 ) tends towards 180°; and   wherein the angle β formed by the tangent to the bulb ( 1200 ) from any point of the second remarkable perimeter ( 5100 ), located between the bulb ( 1200 ) and the stem ( 2000 ), and by the third direction longitudinal L 2000  of the stem ( 2000 ) tends towards 180°.   
     
     
         6 . The piercing of  claim 5  wherein the ratio between the maximum perimeter PB of the bulb ( 1200 ) and any perimeter PT of the stem ( 2000 ) is between 1.5 and 1.9. 
     
     
         7 . The piercing of  claim 5  wherein the ratio between the maximum perimeter PB of the bulb ( 1200 ) and any perimeter PT of the stem ( 2000 ) is preferably equal to 1.7.