Abstract:
A fastening device for releasable interconnection of two panels or elements, in one of which said device is housed and in the other of which an engagement hole is drilled, comprises: a housing element (12), a body (14) rotatable for at least an arc in said element, and a resilient element (26) between said housing element and said body. The resilient element has arms (72, 74) movable between a disengagement position, at which the arms are moved near one another and extended, and an engagement position, at which the arms are moved away from one another and retracted for traction engagement with the walls of the engagement hole. The body has cam means for forcing said arms from said disengagement position to said engagement position, when said body rotates through said arc.
Abstract:
A movement and balancing mechanism for vertical sliding doors (2) has a return spring (38); to instantly counterbalance a variable force exerted by the spring, which is greater the more the spring is extended, a cable (36) cooperates with the spring and winds round a varying radius profile of an idle wheel (28), so that the moment exerted by the spring on the wheel is kept constant. Preferably, the device includes an idle wheel (16) for winding the cable (12) of the door, coupled to the varying profile wheel (28) through a reduction ratio. Use is particularly envisaged for furniture.
Abstract:
The mechanism comprises a block (12) for fixing to the mobile structure, a main arm (14), a transport arm (16), and a distal element (18). The components are configured so as to be able to be disposed with the arms very close together in the closed position. Arms of different lengths are interchangeable to adapt the device to various sizes of doors. A cam head (43) of the main arm interacts with a feeler (32) to determine the closed position with a snap action.
Abstract:
The mechanism comprises longitudinal rails (12) and, for each door, a double slide assembly (14) of which a first slide (16) slides along the rails and a second slide (18), constrained to the door (A), moves at right angles to the first slide (16) between a retracted position in which the door is closed and an extracted position in which the door is opened, at a distance from said first position at least equal to the thickness of the door or a multiple thereof. A longitudinal traverse of the slide assembly (14) is allowed only when the second slide (18) is in the extracted position with respect to the first (16). The retracted position is forced by spring means (36) between the second slide and the first slide. The width of the slide assembly is smaller than the width of the door, generally being half, a third or a quarter thereof. In a wardrobe with a plurality of doors, the mechanism allows any one of the doors to be opened with exactly the same extracting and sliding movement; it also allows more than one compartment to be opened at the same time, in practice as many as all the doors of wardrobe but one, in front of which the doors are disposed parallel to each other.
Abstract:
A fastening device to join together panels comprises a body (12) that has a spreader (32); a U-shaped spring (14) with arms (47, 48) provided with outward facing gripping means (47'', 48'') protruding from said body and drawn together in a resting position; a cam-type operating element (18) rotatable in said body. By rotating the cam element, the spring is movable between a resting position with the arms close to each other, in which it leaves said panels free and an engagement position with the arms spread apart, in which it engages the walls of a hole in a panel, and vice versa. The body (12) has an elongated cylindrical shape and comprises an internal housing (26). A slide element (16) is received inside the housing, is moveable for an axial distance along it, and has means (44) for engaging the spring. The cam element (18) is received in the body and in the slide to operate the movement of the slide between said resting position of the spring and said working position of the spring and vice versa.
Abstract:
The device comprises a hollow box-shaped container-guide (12) inside which a shaft-like fastening member is rotatably received, said member being provided with at least one projecting, eccentric tongue (24), which is inclined with respect to the axis (a) of the shaft, or is preferably shaped according to a section of a helicoid. The fastening member is rotatable between a position in which the locking tongue/s (24) is/are contained inside the hollow container (12) and a position in which it/they projects/project from it to grip into the walls of a hole which receives the container, or against the wall of a panel. A head (22) of the fastening member (14) can be manoeuvred from the outside and has two abutments which collaborate with abutments integral with a head (18) of the container in order to define the completely retracted position of the tongues and the completely extracted position of the same. The container can be realized in various forms.