Abstract:
A drive for a rotatable wing, the drive including an electric motor, a transmission, an output shaft, which is coupled to the electric motor by means of the transmission and can be coupled to the wing in order to move the wing between a closed position and an open position by means of the electric motor, and a force device for applying a force to the output shaft. The drive can have a compact design in that the force on the output shaft produces a torque that has a threshold value which must be overcome in the currentless state of the electric motor in order to move the wing from the closed position to the open position and that disappears in the open position of the wing, and/or in that the force device has a spring arranged transversely to the axis of the drive shaft of the electric motor and transversely to the axis of the output shaft.
Abstract:
A door drive mechanism includes a main drive and an auxiliary drive.In this connection it is provided that the drive assembly of the auxiliary drive is formed as a drive assembly with a linear output and that the drive assembly of the auxiliary drive is borne in a pivot bearing and that the rod system is formed as a slide arm and the rod system bearing is formed as a slide rail.
Abstract:
An adjustable snap-acting hinge is provided. The hinge includes a first articulated quadrilateral and a second articulated quadrilateral, which can move on a working plane and share a first lever and a second lever and are provided respectively with a plate for coupling to a first element and with a plate for fixing to a second element. A contrast element is associated with the coupling plate and can be arranged in at least one position for use, which lies between a first position in which the contrast element is arranged at a maximum distance from the point of the first lever, and a second position in which the contrast element is arranged at a minimum distance from the point of the first lever. The hinge also includes locking means for keeping the contrast element in the position for use.
Abstract:
Provided is a device for opening and closing a sliding door, of which collinearly placed doors slide respectively to overlap each other such that the sliding door is opened or closed. The device includes a sliding portion formed on a surface on which doors come into contact with each other in order to prevent the doors from interfering with each other when the doors are opened; a pair of rail frames formed on a top surface of the furniture and provided with a rail protruding upwardly such that each door is slid forward and backward on the rail, the rail having both sides in which bending portions are formed; and rotational members, each of which is installed to one side of a connection bracket to be rotatable in a curved section of the bending portion while being lifted and slid on the rail.
Abstract:
A power boost assembly is disclosed that can be used with a door actuator, such as a door closer. The power boost assembly is structured to store an energy during a first movement of a door and release the stored energy during a second movement of the door. In one form the power boost assembly can be structured as a module that can be added to an existing door and door closer installation. In one form the power boost assembly is used to increase a closing force imparted to a door to ensure a latching event.
Abstract:
A drive control apparatus for an opening-and-closing body includes an opening-and-closing body; a first driver which drives the opening-and-closing body in a closing direction; a second driver which draws in the opening-and-closing body from a half-latched position to a fully-latched position; a fully-latched detector which detects that the opening-and-closing body has reached the fully-latched position; a stop detector which detects whether a predetermined stopping condition has been satisfied for stopping a driving of the opening-and-closing body in the closing direction; and a drive controller configured to drive the opening-and-closing body via the first driver in the closing direction, when the fully-latched detector detects that the opening-and-closing body has reached the fully-latched position, after the detection of a fully-latched state until the stop detector detects that a predetermined stopping condition is satisfied.
Abstract:
The main door for the control of the access opening to a compartment, particularly a garage compartment, comprises: a fixed portion associable with the access opening of a compartment; a mobile portion including a leaf associated in a mobile way with the fixed portion; at least a pulley on which winds up a cable connected to the leaf and to a counterweight; an operating shaft of the pulley mounted on the fixed portion; a winding-unwinding device having a flexible element which can be wound and unwound which is associated with the top of the leaf; an electric motor mounted on the fixed portion and suitable for placing a driving shaft in rotation; and a transmission and distribution having a first electromagnetic clutch to transmit motion from the driving shaft to the operating shaft and a second electromagnetic clutch to transmit motion from the driving shaft to the winding-unwinding device.
Abstract:
Provided are a railroad vehicle that makes it possible to maintain the air tightness of a door and a plug door for a railroad vehicle. A second rail is provided parallel to a first rail in the longitudinal direction of a vehicle body above the leading edge side (door side) of a plug rail. The second rail supports the leading edge side of the plug rail. As a result, both edges of the plug rail are supported by the first rail and the second rail. Dangling of the leading edge side of the plug rail is thus prevented even when the plug distance (the distance that the door moves in the vehicle body width direction) is long. In this way, it is possible to block the doorway without leaving a gap using the door and to maintain the air tightness of the door.
Abstract:
A power boost assembly is disclosed that can be used with a door actuator, such as a door closer. The power boost assembly is structured to store an energy during a first movement of a door and release the stored energy during a second movement of the door. In one form the power boost assembly can be structured as a module that can be added to an existing door and door closer installation. In one form the power boost assembly is used to increase a closing force imparted to a door to ensure a latching event.
Abstract:
A refrigerator which improves the structure of an auto closing apparatus, increases the sealing ability of a door, and omits mounting of a separate spring. The refrigerator includes at least one door opening and closing at least one storage chamber provided in a main body, at least one upper hinge module including a body part and an extension part rotatably coupled to the at least one door, at least one lower hinge module, a door cap installed on an upper portion of the at least one door and including a hinge receiving part, an auto close lever coupled to the door cap and has elasticity to transmit elastic force to the door, and a cam member including a cam surface contacting the auto close lever so that the auto close lever accumulates elastic force and then transmits the elastic force to the door when the door is closed.