Abstract:
The present invention relates to a main rotor arrangement (1) for an UAV-helicopter, comprising a rotor mast (3) defining a vertical axis of rotation (R), and a hub (5) for attachment of rotor blades, wherein the hub (5) is mounted to the rotor mast (3) in a tiltable way so as to reduce loads acting on the rotor blades during operation of the UAV-helicopter. The main rotor arrangement (1) comprises a damping assembly (18) for damping said tilting of the hub (5).
Abstract:
The present invention relates to a load bearing assembly (7) for an UAV-helicopter (1) and which comprises a carrier (11) for a payload, such as a camera or a radar unit, wherein the carrier (11) is movable and lockable in the longitudinal direction of the UAV-helicopter, so as to adjust the centre of gravity of the UAV-helicopter (1). The present invention also relates to an UAV-helicopter being provided with such a load bearing assembly.
Abstract:
The invention relates to helicopters with removable fuel tanks, wherein all fuel tanks of the helicopter are removable fuel tanks. Helicopters all fuel tanks of which are removable can safely be stored on ships and aircraft carriers.
Abstract:
The invention relates to a de-icer (20), comprising a bracket (52) arranged on a structural member and a de-icer module (22) mounted on the bracket (52). The de-icer module (22) is adjustable arranged on the bracket (52), so that the position of the de-icer module (22) is adjustable in relation to the bracket (52). The invention also relates to a fixture (72) and a method of adjusting the position of a de-icer (20).
Abstract:
The present invention relates to a battery change table (13) for a truck (1), comprising a sliding table (13) comprising a plurality of rollers (19) designed to support a battery pack (2), which sliding table (13) can be moved in the truck between a first position in which a battery pack (2) can be rolled on and off the sliding table, and a second position in which the battery pack (2) is arranged for operation of the truck (1), with the sliding table (13) comprising a lifting device (46) for raising and lowering the battery pack (2) in such a way that when the sliding table (13) is in the first position, the rollers (19) support the battery pack (2), and when the sliding table (13) is in the second position, the lifting device (46) supports the battery pack (2) so that the rollers (19) do not bear any of the weight of the battery pack (2).
Abstract:
The invention refers to a mounting device (1) for mounting electronic components of an unmanned helicopter (22) comprising a solid base plate (2) having a circumferential outer edge (3), and connecting means (4) fixedly attached to said circumferential outer edge (3) for reversibly connecting a flexible cover (5) to said base plate. Mounting devices (1) of present invention protect grouped electronic components of the helicopter against harsh weather conditions like moist, salt, dirt, dust and wind.
Abstract:
The present invention relates to a landing arresting system for vertical take-off and landing (VTOL) aerial vehicles(1) comprising a landing and take-off platform(6) and at least one VTOL locking member (4) having a projecting portion (32) arranged at a lower portion of the vehicle (1). The landing and take-off platform(6) comprises a plurality of individually displaceable rolls (12),arranged substantially in a horizontal direction, and moveable back and forth, such that the projecting portion (32) of the VTOL locking member (4) can be entered, retained and released between two adjacent rolls (12). The present invention also relates to a landing and take-off platform for VTOL aerial vehicles and a VTOL locking member for aerial vehicles.
Abstract:
The invention relates to an unmanned aerial vehicle (UAV) helicopter comprising a dismountable tail section including a torque compensating rotor, wherein power transmission from the motor to the torque compensating rotor is accomplished by pulley-and-belt drive arrangements.
Abstract:
The invention relates to a rotor damper for a tail rotor (1) of a helicopter (4), comprising a main body (30) of a resilient material to be arranged between a drive shaft (6) for the tail rotor (1) and a hub (12) on which rotor blades (14) for the tail rotor (1) is coupled. A flange (38) is connected to the main body (30) of the rotor damper (2), which flange (38) is provided with an abutment surface (39) for abutting an outer surface (50) of the hub (12). The invention also relates to a tail rotor (1) provided with such a rotor damper (2).
Abstract:
The present invention relates to a industrial truck comprising a lifting stand (1) having a first and a second journal (11), in which each journal (11) is provided with a bushing (15) rotatable about the journal (11), a stand holder (7), which forms part of the chassis of the industrial truck and comprises a first and a second seat (21), in which each bushing (15) is rotatably mounted in one of the respective first and second seats (21) such that the stand holder (7) supports the lifting stand (1). The industrial truck is characterized in that the respective bushing (15) and seat (21) have such a mutual geometric configuration that when each bushing (15) assumes a first rotational position in the seat (21), the bushed journals (11) are radially displaceable in the respective seat (21) such that the lifting stand (1) is disposed detachedly in the stand holder (7), and when each bushing (15) assumes a second rotational position in the seat (21), the bushed journals (11) are radially locked in the respective seat (21) such that the lifting stand (1) is fixed in the stand holder (7).