Abstract: A sports shoe comprising a semirigid shell divided into a heel unit and a separate toe unit, which are slidingly associated, the shell containing a soft innerboot that comprises a detachable interconnection for connection of an element for at least partial covering and/or fastening of the soft innerboot, the covering and/or fastening element being conveniently associated with the toe unit and protruding therefrom.

Abstract: A skate structure, particularly a roller skate with in-line wheels, comprising a frame (10) for supporting the wheels (14), a rigid sole (16) for supporting a first shoe body (30), a rigid cradle (34) for lateral and rear support of said first shoe body (30), an oscillating collar (40) for supporting the user's leg, and a removable, soft second shoe body (50) inserted into the said first shoe body (30) and designed to hold the user's foot. The frame (10), the rigid sole (16) and the rigid support structure (34) constitute an integral structure made in a single piece. A rigid toe-piece (18) may also be part of the one-piece structure, or, alternatively, may be produced as a separate component to be attached to the first shoe body (30′) or to the one-piece structure before final assembly of the skate.

Abstract: An adjustment device, particularly for adjusting the length of a skate, which comprises a frame provided with first connection elements to two or more wheels, a shell associated with the frame in order to accommodate at least the heel of the user, and a toe unit slidingly associated with the shell and/or frame in order to accommodate the tip of the user's foot. The device comprises a slider means that can be actuated by the user, and is substantially transversely associated to the toe unit in contrast with an elastic element and interact selectively with the frame and/or shell.

Abstract: A door lock has a base securable to a door or door frame, and a locking arm pivotally connected to the base and movable when the base is secured to the door or the door frame to a blocking position where the door is prevented from opening and a retracted position where the locking arm is retracted from the door locking position. The locking arm is biased to the retracted position to facilitate closing the door when the base is secured to the door or to the door frame. A locking device is slidably mounted on the base for sliding movement to a locking position in a direction parallel to the plane of the door to engage the locking arm and hold the locking arm in the blocking position against the biasing when the door is closed, thereby locking the door. The door is unlocked by sliding movement of the locking device to an unlocking position in a direction opposite to the first mentioned direction to become disengaged from the locking arm, whereby the biasing returns the locking arm to the retracted position.