Device for opening and closing an article, in particular of natural or artificial leather, and an article comprising such a device

A device for opening and closing an article, particularly of natural or artificial leather, comprising a clasp casing (2) and an assembly button (3) configured to cooperate with said clasp casing, which clasp casing is provided with a mechanism having a locked configuration in which said article can be closed and an unlocked configuration in which said article may be opened, wherein said mechanism comprises a housing (4) rotatably mounted relative to said clasp casing (2), between a stable first position and a second position, at least one locking member (60;

• 82) movably mounted in said clasp casing (2) and configured to be driven by said housing (4), and a latch (45) mounted movably with respect to translation in said clasp casing (2) and configured to cooperate with said housing (4) said mechanism being configured such that:
• when said housing (4) is in the stable first position and said assembly button (3) is inserted into said clasp casing (2), said at least one locking member (60;
• 82) immobilizes said assembly button (3) at least with respect to translation;
• when said housing (4) is caused to rotate and passes from the stable first position to the second position, said at least one locking member (60;
• 82) is displaced until said assembly button (3) is released and said latch (45) is translationally driven within said clasp casing (2) until said assembly button (3) is pushed out of said clasp casing (2);
• when said housing (4) is in the second position, said latch (45) immobilizes said housing (4) and said at least one locking member (60;
• 82);
• and when said assembly button (3) is re-inserted into said clasp casing (2), said assembly button (3) pushes said latch (45) which releases said housing (4) and said at least one locking member (60;
• 82), said housing (4) is caused to rotate and passes from the second position to the stable first position and said at least one locking member (60;
• 82) is displaced until said assembly button (3) is immobilized at least with respect to translation.