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US 6,081,089 AGranted
Drive system
AssigneeAgfa-Gevaert
InventorsFernand Godon, Luc Horemans, Jan Zwijsen
Life of this patent
Estimating the term…
Abstract
Drive system for driving a load (20), the drive system including a motor (10) coupled to a first shaft (11), a second shaft (19) coupled to the load, and an intermediate shaft (15) coupled to the first shaft and coupled to the second shaft. The angular position of the intermediate shaft is converted by a rotational encoder (25) into a drive signal for driving the motor.
Claims11
A method for controlling the angular velocity of the output shaft of a motor, the method comprising:
- rotating the motor output shaft at a first angular velocity;
- driving a first transmission using the motor output shaft;
- driving an intermediate shaft at a second angular velocity using the first transmission;
- driving a second transmission using the intermediate shaft, the second transmission being different from the first transmission;
- driving a load using the second transmission;
- converting the second angular velocity into a position signal;
- and
- controlling the first angular velocity as a function of the position signal.
5 more elements
A system comprising:
- a motor having an output shaft rotatable at a first angular velocity for driving a first transmission;
- an intermediate shaft drivable at a second angular velocity by the first transmission for driving a second transmission, the second transmission being different from the first transmission;
- a load drivably coupled to the second transmission;
- a converter for converting the second angular velocity into aposition signal;
- and
- a controller for receiving the position signal and for controlling the first angular velocity as a function of the position signal.
3 more elements
A thermal printer comprising:
- a motor having an output shaft rotatable at a first angular velocity for driving a first transmission;
- an intermediate shaft drivable at a second angular velocity by the first transmission for driving a second transmission, the second transmission having a transmission being different from the first transmission;
- a load drivably coupled to the second transmission, the load having a surface for conveying a heat-sensitive material;
- a thermal head for heating the heat-sensitive material to produce an image thereon;
- a converter for converting the second angular velocity into a position signal;
- and
- a controller for receiving the position signal and for controlling the first angular velocity as a function of the position signal.
4 more elements
Dependencies are inferred from the claim text.