Abstract: An adjustable jewelry assembly includes a jewelry chain or other flexible member slidably mounted to a clasp for adjusting a hanging length or opening size of the flexible member. The clasp is formed from a single piece of thin sheet material and includes a pair of walls connected together by a biasing portion. Superimposed tabs with openings extend from the walls in opposite directions. The flexible member is normally held against movement in the clasp by opposing biasing forces exerted by the edges of the openings from the biasing portion. When the walls are pressed toward each other, the flexible member may be slid through the clasp until the desired hanging length or opening size is achieved, then released to clamp the clasp and flexible member against relative movement.

Abstract: An adjustable jewelry assembly comprises a releasable clamping device and an elongate flexible member, such as a necklace or bracelet chain, that is releasably secured to the clamping device. The elongate flexible member forms a loop portion at one side of the clamping device and a pair of legs at an opposite side of the clamping device. The clamping device includes a cap and an insert slidably mounted in the cap. The legs extend; through openings in the cap and insert. A biasing member is located between the cap and insert for biasing the insert away from the cap. When the clamping device is at rest, the openings are misaligned and a shear force is applied to the legs, thereby securing the legs against slidable movement with respect to the clamping device. Pressing the cap and insert toward each other against the biasing force causes the openings to align and release the shear force so that the legs can slide with respect to the clamping device.

Abstract: An adjustable jewelry assembly comprises a releasable clamping device and an elongate flexible member, such as a necklace or bracelet chain, that is releasably secured to the clamping device. The elongate flexible member forms a loop portion at one side of the clamping device and a pair of legs at an opposite side of the clamping device. The clamping device includes a cap and an insert slidably mounted in the cap. The legs extend through openings in the cap and insert. A biasing member is located between the cap and insert for biasing the insert away from the cap. When the clamping device is at rest, the openings are misaligned and a shear force is applied to the legs, thereby securing the legs against slidable movement with respect to the clamping device. Pressing the cap and insert toward each other against the biasing force causes the openings to align and release the shear force so that the legs can slide with respect to the clamping device.