Patent application number | Description | Published |
20080224640 | Brake-controllable brushless motor - A brake-controllable brushless motor has a rotor and a stator having polyphase coils; a polar position detector whereby electric power is supplied to the coil selected by its phase in response to the polar positions of the rotor detected by the polar position detector; a driver division for controlling the electric supply to the coils; a motor pulse identifier for recognizing motor pulse signals fed from the polar position detector; and a delayed pulse generator for producing phase-delayed pulse signals in response to the pulse signals fed from the motor pulse identifier, thereby ensuring that when the brushless motor is braked, the phase delay of the delayed pulse signals is progressively and continuously enlarged, and that the coils receive a controlled electric supply from the driver division in response to the delayed pulse signals. | 09-18-2008 |
20100051420 | Article lifting device - An article lifting device | 03-04-2010 |
20100059341 | Motorized roller and motor unit for motorized roller - A motorized roller includes a roller body of a cylindrical shape, in which a motor and a reducer are housed. The motorized roller has fixed shafts protruding out of both ends of the roller body. A first fixed shaft has a cavity, in which a first connector is housed. A second connector is connected to the first connector. The first fixed shaft has a first engaging part (inside screw) for preventing disengagement of the second connector, so that a part (screw forming part) of the second connector is engaged with the first engaging part. | 03-11-2010 |
20100213028 | Transfer device and conveyor equipped with the same - A transfer device is configured by a conveying part and a lifting part both fixed to a casing. The conveying part forms a latticework by two groups of rollers aligned in a first direction and a second direction in matrix and includes chains for rotating the group of rollers aligned in the first direction and the group of rollers aligned in the second direction per group and driving devices for conveyance. The lifting part includes a driving device for lifting, rectilinearly-movable members for performing a rectilinear motion, and converting members for converting the rectilinear motion of the rectilinearly-movable member to a rotational motion and further to a lifting motion so as to transmit the lifting motion to the rollers. The converting members are arranged at the respective lattice points to lift up and down either group of rollers concurrently, which form a flat surface to convey articles. | 08-26-2010 |
20120160637 | ARTICLE STORAGE DEVICE AND CONVEYOR USED THEREIN - An article storage device for storing a plurality of pallets and having a plurality of storage compartments includes a conveyor for conveying the pallets, the conveyor being divided into a plurality of control zones corresponding to the respective storage compartments and having controllers in the respective zones. At least the controllers in the zones between the both end control zones each have a motor functioning also as an arrival detector, a RAM, and a communication circuit, the motor being for detecting a pallet being entering the home control zone, the RAM being for memorizing information indicating whether a pallet exists in the home control zone, and the communication circuit being for transmitting the information to the controller in the downstream zone. The controllers each contain a program to move up the pallet to the downstream zone so as to store the pallet. | 06-28-2012 |
20150210484 | TRANSFER APPARATUS AND POSITIONING METHOD OF DEVICE HAVING MOTOR - In a transfer apparatus, a lifting unit has a lifting mechanism having a plurality of combined members and a motor. The lifting mechanism converts the rotation force of the motor to movement in the lifting direction, transmits the movement to at least one of first and second conveyors, raises or lowers at least one of first and second conveyors, and stops rotation of the motor when one of conveying paths reaches a predetermined height. In that process, a physical limit identification operation is executed in which the motor is rotated to operate the lifting mechanism to a physical operation limit and is then stopped, and control of the motor is changed so that the motor is rotated at low speed until the lifting mechanism reaches the physical operation limit. | 07-30-2015 |
20150225179 | CONVEYOR AND WEIGHT SENSING METHOD USING CONVEYOR - It is an object of the present invention to provide a conveyor which estimates weight of a transport object while it is carried without using devices such as a load cell which directly measures weight. | 08-13-2015 |