A jewelry clasp is disclosed and includes a first part including a first magnet, a first groove and a first catch and a second part including a second magnet, a second groove and a second catch. The first and second magnets generate an attractive force holding the first part to the second part, the first catch is received in the second groove and the second catch is received in the first groove. A relief disposed on at least one of the first part and the second part at an interface between the first part and the second part is provided to aid in releasing the first part from the second part.

A jewelry clasp includes respective first and second clasp parts and a slider. At least part of the first clasp part in an attached position thereof is received in a housing of the second clasp part. At least one of the first and second clasp parts includes a magnet, and the other of the first and second parts includes a part magnetically attractable by the magnet so that the first clasp part in its attached position is held to the second clasp part by magnetic attraction. The slider is attached to and slideable in relation to the housing of the second clasp part, and is slideable between a releasing state and a locking state. In the releasing state, the first clasp part may be detached from the second clasp part, and in the locking state the first clasp part is prevented from being detached from the second clasp part.

A jewelry clasp includes a female end component having a first push-button fastening means and a male end component that is releasably securable within the female end component. The male end component has a second push-button fastening means that engages a portion of the first push-button fastening means. The engaging portion of the first push-button fastening means is movable between a locked position and an unlocked position. An ornamental component for jewelry that has an elongate member includes a housing, a channel passing through the housing, and a slot within the housing. The slot is substantially parallel to the channel and passes through a wall of the housing to the channel.

A jewelry clasp is disclosed and includes a first part including a first magnet, a first groove and a first catch and a second part including a second magnet, a second groove and a second catch. The first and second magnets generate an attractive force holding the first part to the second part, the first catch is received in the second groove and the second catch is received in the first groove. A relief disposed on at least one of the first part and the second part at an interface between the first part and the second part is provided to aid in releasing the first part from the second part.

A jewelry closure mechanism (e.g., clasp) may include a locking receptacle and a locking pin that operate together to provide a closure mechanism for a piece of jewelry. The closure mechanism may or may not include a hinge. In some implementations, a locking pin may extend from the second arm and be inserted into a locking receptacle formed in a second arm to lock the two components together. The locking receptacle may include one or more wires (e.g., spring and/or precast) that extend transversely to the direction of the locking receptacle. The closure mechanism may be used as a general jewelry closure device and/or to couple segments of jewelry together.

A magnetic jewelry attachment assembly for selectively coupling mechanical clasps at opposite free ends of an article of jewelry, including a pair of clasp-retaining cases magnetically-couplable to each other. Each clasp-retaining case incorporates an elongated clasp-retaining body having a clasp-receiving channel extending into a proximal end of the elongated clasp-retaining body, the clasp-receiving channel extending from a proximal channel end to a distal channel end, the distal channel end terminating within the elongated clasp-retaining body. A clasp securement device is provided mounted within the distal channel end of the elongated clasp body-retaining and configured for releasably-engaging a first mechanical clasp at a first one of the opposite free ends of the article of jewelry. An elongated clasp-retaining body magnetic portion enable the pair of clasp-retaining cases to be selectively magnetically coupled to one another to form a composite clasp-retaining case that securely retains the opposite free ends of the article of jewelry while obscuring the respective mechanical clasps of the article of jewelry from view.

Described is a fastening device for jewellery comprising a first element and a second element which can be fixed to respective ends of jewellery, wherein the first element has a top surface and a bottom surface, in which a socket is formed; the second element has a top surface, a bottom surface and a head, configured to interlock in a complementary way with the socket, so as to reversibly couple the first element with the second element; the second element comprises a groove, formed on its top surface, in which a sliding slider is housed, the first element comprises a recess, in a position adjacent to the socket, delimited by its top surface, so that, when the head is inserted in the socket, the slider remains in contact with the top surface of the first element at the recess, preventing the head from disengaging the socket and the second element from separating from the first element.

The disclosure concerns a freely spliced buckle strap, at least two buckle units and a buckle connection structure; the buckle connection structure includes a clamping protrusion and a clamping groove, and a first transverse convex strip is provided on or closed to the clamping protrusion; the clamping groove is provided with a second transverse convex strip that can be matched, clamped and locked with the first transverse convex strip; two adjacent buckle units are placed in the clamping groove of the other buckle unit, and are reliably connected to form a whole through the match, clamping and locking by the first and second transverse convex strips.

A watchband can comfortably secure an electronic device to a wrist of a user. The watchband can include a base having a contact surface opposite an engagement surface, contact loops on the contact surface for contacting a user, and engagement loops on the engagement surface for engaging hooks. The hooks can be provided on the engagement surface, opposite some of the contact loops. The base can include base threads, and the contact loops and engagement loops can be formed by contact threads and engagement threads woven about some of the base threads between the contact surface and the engagement surface. Between adjacent engagement loops, the engagement thread can be more securely attached to the base than is the contact thread between adjacent contact loops.

A strap adjusting device and a wearable device are provided. The strap adjusting device is configured for adjusting a length of a strap of the wearable device and includes a pressing piece including a supporting plate connected to the strap and a cushion arranged on the supporting plate; a first sensor arranged on the pressing piece and configured to detect a deformation parameter value of the cushion; and a tightness adjusting mechanism cooperating with the strap and configured to adjust the length of the strap in response to the deformation parameter value of the cushion.