Patent application number | Description | Published |
20100230371 | METHOD TO MAKE AN ARM FOR THE DISTRIBUTION OF CONCRETE, AND ARM THUS MADE - A method to make an arm for the distribution of concrete, or other material similar to concrete, used on heavy work vehicles, wherein the arm comprises a plurality of segments selectively folding and extendible one with respect to the other. Each segment comprises a main girder and auxiliary elements for connection to adjacent segments or for attachment of movement and/or supporting devices for the pipe that carries the concrete. The method comprises a first step in which each main girder is formed, with a predefined length, by depositing a plurality of layers of pre-impregnated composite material in a female type mold. The method comprises a second step in which the composite material, deposited in layers in the mold in a variable number of layers, is subjected to polymerization. The method comprises a third step in which each main girder is removed from the mold and a fourth step in which the auxiliary elements are associated with each girder so as to form a relative segment. The method comprises a fifth step in which the extendible arm is assembled, connecting the various segments at the respective ends. The cross section of each of the main girders of the segments is substantially constant over the whole length thereof. The female mold consists of one or more elementary molds of equal section, connected in sequence with each other according to the overall length of the main girder to be made. | 09-16-2010 |
20110179783 | DEVICE TO ACTIVELY CONTROL THE VIBRATIONS OF AN ARTICULATED ARM TO PUMP CONCRETE - The device to actively control the vibrations of an articulated arm consisting of a plurality of segments each comprising at least its own actuator associated with a hydraulic drive circuit including a block valve. At least one of said actuators is associated with an auxiliary control circuit of the vibrations, comprising at least a sensor able to detect the vibrations and/or the position of one or more segments, a processing unit to process the signals of the sensor/sensors and a pump commanded by the processing unit and cooperating with said block valve. The auxiliary control circuit is associated with the hydraulic drive circuit. | 07-28-2011 |
20110220228 | ARM TO DISTRIBUTE CONCRETE AND RELATIVE PRODUCTION METHOD - An arm to distribute concrete comprising a plurality of articulated segments selectively able to be folded back and extended with respect to each other, made of composite material, wherein at least one of said segments comprises at least a first tract and a second tract, each having a constant cross section, wherein the section size of the first tract is different from the section size of the second tract, a connection tract being provided between said first tract and said second tract. | 09-15-2011 |
20130129534 | PUMPING UNIT FOR A MACHINE TO DISTRIBUTE CONCRETE - A pumping unit for a machine to distribute concrete includes a pair of cylinders provided with a relative pumping piston movable linearly for a determinate travel to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit operatively connected to both the cylinders, to determine an alternate pumping movement of the relative pumping pistons. The pumping unit includes at least a sensor member operatively associated to at least one of the cylinders in order to detect point-by-point one or more data relating to the operating condition of the pumping piston during its movement for the whole travel. The data includes at least one of position, speed, stress and direction of movement of the relative piston. | 05-23-2013 |
20130333829 | METHOD TO MAKE ARMS IN A COMPOSITE MATERIAL FOR THE DISTRIBUTION OF CONCRETE AND ARM THUS OBTAINED - Method to make an arm in a composite material for articulated or telescopic modular structures for the distribution of concrete, which comprises a first step in which one or more layers of fiber ( | 12-19-2013 |
20150090850 | SEGMENT OF AN ARTICULATED ARM AND ARTICULATED ARM COMPRISING SAID SEGMENT - Segment of an articulated arm made of composite material, with an elongated shape defining a longitudinal axis, and having a box-like cross section. The segment includes a first end portion, configured for the pivoting of a further segment, a second intermediate portion configured for the pivoting of an actuation member, and a third end portion. The first, second and third portions are made in a single body. The second intermediate portion includes a protruding zone defined by a first side and by a second side converging with respect to each other to define a top. Pivoting elements are provided in the protruding zone for the pivoting of the actuation member between the protruding zone and the first end portion. The first and the second side defining the protruding zone are filleted to substantially rectilinear adjacent tracts of the first and third end portions. | 04-02-2015 |
20150174788 | TRUCK MIXER WITH SAFETY DEVICE - Truck mixer with safety device, comprising a drum rotatable around an axis of rotation by means of rotation devices, which comprise a first drive member of the electric type suitable to make said drum rotate, during normal use, and a second drive member that functions as a safety device, able to be selectively actuated in a condition of non-usability, even temporary, of said first drive member, and also suitable to make the drum rotate. | 06-25-2015 |
20150306786 | TRUCK MIXER WITH A DEVICE TO MAKE THE DRUM OF THE CONCRETE MIXER ROTATE AND CORRESPONDING METHOD - Truck mixer comprising a vehicle provided with a heat engine which cooperates with a movement unit having wheels, to effect the movement of the vehicle, a concrete mixer mounted on the vehicle and comprising a drum, and a device to selectively make the drum rotate. The device comprises an electric motor connected to the drum, and an electric energy generator unit suitable to selectively feed the electric motor. | 10-29-2015 |