초록 ▼

A bracelet clasp with an unfolding buckle includes a lever (2) pivotably mounted on a cap (1) by a first hinge (3a), the lever controlling a bolt (4) which is in turn mounted on the cap (1) by a second hinge (3b) distinct from the first. The bolt (4) is arranged to cooperate with a hook (22) fitted

A bracelet clasp with an unfolding buckle includes a lever (2) pivotably mounted on a cap (1) by a first hinge (3a), the lever controlling a bolt (4) which is in turn mounted on the cap (1) by a second hinge (3b) distinct from the first. The bolt (4) is arranged to cooperate with a hook (22) fitted to the first arm (8) of the clasp. Elastic mechanism (5) is arranged for keeping the lever (2) in a non-raised position and the bolt (4) engaged with the hook (22) when the lever is not manually activated.

대표청구항 ▼

1. A bracelet clasp including at least two arms articulated to each other, a first arm, one end of which is attached to a strand of the bracelet, the other end being articulated on a first end of a second unfolding arm traversed at the second end thereof by an arbour about which there is articulated

1. A bracelet clasp including at least two arms articulated to each other, a first arm, one end of which is attached to a strand of the bracelet, the other end being articulated on a first end of a second unfolding arm traversed at the second end thereof by an arbour about which there is articulated a cap provided with first and second flaps and to which another strand of the bracelet is attached, and a fastening system with a lever for locking said first and second arms, wherein a lever is pivotably mounted on the cap by means of a first hinge, said lever controlling a bolt which is in turn pivotably mounted on said cap by means of a second hinge, distinct from the first, said bolt being arranged to cooperate with a hook fitted to the first arm and to lock the clasp when the clasp is pushed into a fastening position, elastic means being arranged to hold the lever in a non-raised position and the bolt engaged with the hook when said lever is not manually activated. 2. The clasp according to claim 1, wherein the elastic means takes the form of a plate fixed to the cap by means of screws, said plate being cut in the form of a rake having a central strip abutting on a boss formed on the back of the lever, and two external strips abutting on raised portions formed on the back of the bolt. 3. The clasp according to claim 1, wherein the lever is a plate provided with a grippable portion, and wherein, when not activated, said plate merges with the top of the cap. 4. The clasp according to claim 1, wherein the first and second hinges about which the lever and the bolt respectively pivot, are mounted in the flaps of the cap.