Abstract: The locking device (10) for locking a rotary articulation between a lower shell (2) and a cuff (3) of a ski boot (1) includes an immobilizing element (20) movable in translation between immobilizing and release positions, a blade (14) having a stop surface (21A, 21B) to interact with the immobilizing element to lock the rotary articulation when the immobilizing element is in the immobilizing position, a lever (11) intended to be manipulated by a user, the lever being movable between locking and unlocking positions, and a toggle (38) mounted rotatably about a first axis of rotation (Y1) and having first (47) and second (48) bearing surfaces opposite with respect to the first axis of rotation. The lever is configured to exert a thrust against the first bearing surface to cause the toggle to pivot about the first axis of rotation. The second bearing surface is configured to exert a thrust against the immobilizing element to move it between its immobilizing and its release positions.

Abstract: Operating device (5) for a sports shoe/boot (1), including: —a tightening device (6) intended to tighten the sports shoe/boot around a foot or lower leg of a user; —a first lever (14) able to move between a first position and a second position, the first lever being able to actuate the tightening device; and —a second lever (15) distinct from the first lever (14), the second lever (15) being able to move between a first position and a second position, the second lever being intended to actuate at least one accessory (10) of the sports shoe/boot, the first lever and the second lever being configured to rest one upon the other.

Abstract: A locking and unlocking device includes an actuation element and a lock and a rear deflector. The actuation element is mobile between a first position and a second position, controlling the position of the lock and the position of the rear deflector such that in the first position, the lock occupies a locking position to block an upper cuff in rotation relative to a shell base, and the rear deflector occupies a low position to close a cut-out at the rear of a shell base; and in the second position, the lock occupies an unlocking position to release the rotation of an upper cuff relative to a shell base, and the rear deflector occupies a high position to open up at least partly a cut-out at the rear of a shell base, in order to increase the amplitude of flexure of a lower leg in a sports boot.

Abstract: A locking and unlocking device includes an actuation element and a lock and a rear deflector. The actuation element is mobile between a first position and a second position, controlling the position of the lock and the position of the rear deflector such that in the first position, the lock occupies a locking position to block an upper cuff in rotation relative to a shell base, and the rear deflector occupies a low position to close a cut-out at the rear of a shell base; and in the second position, the lock occupies an unlocking position to release the rotation of an upper cuff relative to a shell base, and the rear deflector occupies a high position to open up at least partly a cut-out at the rear of a shell base, in order to increase the amplitude of flexure of a lower leg in a sports boot.