BRACELET CLASP COMPRISING DEVICE FOR ADJUSTING USEFUL LENGTH OF THE BRACELET Russian patent published in 2018 - IPC A44C5/14 A44C5/24 

FIELD: personal and household items.

SUBSTANCE: invention relates to a bracelet clasp and to a wristwatch comprising a bracelet with a clasp. Clasp has a first and second free ends and comprises: first and second fastening elements of the bracelet, which can move relative to each other between an open position and a closed position for wearing the bracelet, in which they are located closer to each other than in the open position, in order to close the bracelet and define the working length for it; a locking element designed to hold the bracelet fasteners in their closed position. Furthermore, the clasp comprises a control element for the locking element, designed for releasing the clasp in response to a user action and for moving from a closed position to an open position. Clasp includes a device for adjusting the working length of the bracelet, comprising an adjusting element that supports the first fastener of the bracelet and a lock capable of having an initial closed state, in which the adjusting element is stationary, and the open state, in which the adjusting element is free to slide in the direction of the length of the bracelet relative to the second bracelet fastener to change the working length of the bracelet. Adjusting device is separate from the locking member, the lock being movable from its closed state to its open state by the user, acting on the control element of the locking element in such a way that the adjusting element can be moved independently of the open or closed state of the clasp. Adjusting element comprises a support structure that supports the first fastener of the bracelet, and at least one pin designed to cooperate with the lock. Lock comprises a disc that is located adjacent to the supporting structure and in which a slot in the longitudinal direction of the bracelet is formed. Slot has at least two grooves capable of interacting with the pin in the closed state of the lock, to form two different working lengths of the bracelet. Pin is able slide inside the slot in the open state of the lock, so as move from one groove to another and change the length of the bracelet.

EFFECT: ensuring reliability and accuracy of adjusting the length of the bracelet.

35 cl, 7 dwg