초록 ▼

A finger ring size adjustment device comprises a ring shank and a cradle which is biased radially inward from the shank. The cradle is moveable between a retracted position and an adjusted position for reducing the ring size. The ring wearer thus has an adjustable ring shank for easily sliding over

A finger ring size adjustment device comprises a ring shank and a cradle which is biased radially inward from the shank. The cradle is moveable between a retracted position and an adjusted position for reducing the ring size. The ring wearer thus has an adjustable ring shank for easily sliding over an enlarged knuckle or joint and then to a desired fit on the phalanx portion of the finger. The cradle is biased inwardly toward the adjusted position by a leaf spring in an automatically adjustable embodiment and a lever arm in an alternate embodiment. The manually operable lever arm is slidably engaged with the cradle and rotatably connected to the shank for moving the cradle between the retracted and adjusted positions. The lever arm is stored within the body of the shank when holding the cradle in the adjusted position. The leaf spring is carried by the shank and is positioned for biasing the cradle radially inward from the shank to the adjusted position which position is automatically set by the finger of the user. A feature of the invention includes the biasing member and cradle positioned within the boundaries of the shank for permitting the adjustable ring device to be used in juxtaposition with a second or companion ring and for avoiding the snagging of clothing by the adjustable ring.

대표청구항 ▼

[ What is claimed is:] [1.] A finger ring size adjustment device comprising:a shank having an opening for receiving a finger therethrough, the shank defined by a generally cylindrical shank periphery and side walls extending radially inward from the shank periphery, the shank further having a cavity

[ What is claimed is:] [1.] A finger ring size adjustment device comprising:a shank having an opening for receiving a finger therethrough, the shank defined by a generally cylindrical shank periphery and side walls extending radially inward from the shank periphery, the shank further having a cavity therein and first and second portions;a cradle having an arcuate central portion for receiving a finger portion, the cradle also having first and second ends, the cradle operable within the shank periphery for movement between a retracted cradle position wherein the cradle is proximate the shank periphery for permitting the finger to freely pass through the opening of the shank to an adjusted cradle position wherein the cradle is displaced radially inward from the shank periphery for reducing a size of the opening of the shank and receiving the finger within the opening having a reduced size fitting the finger;first and second hinges, each hinge pivotally attaching the first and second cradle ends respectively, to the first and second shank portions respectively, the first and second shank portions each having a hinge pin carried within the cavity of the shank, each of the first and second hinges having a slot which pivotally and slidably receives one hinge pin respectively, the first and second hinges sliding along and pivoting around the hinge pins to move the cradle between the retracted cradle position and the adjusted cradle position; andcradle biasing means carried by the shank for biasing the cradle against the finger when the finger is received within the shank opening, the biasing means positioned within the cavity of the shank.