Closure for article, in particular for jewelry
A jewelry item has a ring part pivotally attached to a closure at one end, the closure comprising a ring continuation arm pivotally attached to the ring part, and a bias arm which in turn has a spring part and a lever pivotally attached to each other, the bias arm being rigidly attached to the ring part, so that as the ring part is opened, the lever rotates inwardly, pulling the pivoted end of the spring part, the spring part having a natural shape of smaller circumference than the ring itself so that once a certain extent is reached, the spring part pulls the lever to allow the spring part to attain its smaller diameter and thus establishes a stable open position. On closure of the ring part, the lever pushes the spring part outwardly towards the ring continuation arm to establish a second stable position to close the earring.
1. A jewelry item comprising a ring part and a closure, the closure connecting to said ring part at a first end, the closure comprising a ring continuation part, the closure comprising a spring arm having a first end and a second end and extending along a length of said closure and radially outwardly of said ring continuation part, the spring arm being pivoted to said closure at a first location thereon and further pivoted to said ring part at a second location, said closure having a pivoted hinge located at said first end, said first end being between said first location and said second location, the spring arm maintaining a fixed length between said first end and said second end and resiliently bending between a radially outwardly extended first stable state and a radially inwardly extended second stable state, thereby providing said closure with a first open stable position and a second closed stable position and a snapping motion between said first and second stable positions, wherein said first end is closer to said second location than to said first location.
2. The jewelry item of claim 1 , wherein the jewelry item comprises an earring, the earring comprising a setting and a pin, and the closure for closing over the pin, the first end being on the setting and the second end being a free end of the pin, the first position being a position in which the closure connects to the pin to close the earring and the second position being a position in which the closure is spaced away from the pin to open the earring, or wherein the jewelry item comprises a ring or a bracelet, the ring comprising a band and the closure being incorporated into the band, the first and second ends being on the band, the first position being a position in which the closure connects the band to close the ring and the second position being a position in which the closure opens the band.
3. The jewelry item of claim 1 , being a huggie style earring.