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AssigneeKoninklijke Philips Electronics N.V.
InventorsHenning Fink, Horst-Hartwig Schwieker, Uwe Meyer-Douque, Janos Csikos, Gyorgy Medgyesi
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The invention relates to a drive unit (12) for vertical or horizontal movement of a component (7) of a diagnostic X-ray device (1), comprising a motor and gear unit (14), a pulley (10) mounted on a drive shaft (13) of the motor and gear unit (14), and traction means (9), e.g. a rope or a drive belt, wound around the pulley (10), the component (7) to be moved being either attached to the traction means (9) or connected with the drive unit (12). In order to provide a drive unit (12) enabling collision detection, emergency stop functionality, and improved handling with regard to control of the motion of the component (7) by an operator of the X-ray device (1), the invention proposes that the motor and gear unit (14) is rotatable about the axis of the drive shaft (13) against the elastic force of a balancing spring (15), wherein provision is made for a rotation sensor (17,24), which rotation sensor (17,24) is adapted for detecting a rotation of the motor and gear unit (14) and for generating a corresponding rotation detection signal.
Drive unit for vertical or horizontal movement of a component (7) of a diagnostic X-ray device, comprising a motor and gear unit (14), a pulley (10) mounted on a drive shaft (13) of the motor and gear unit (14), and traction means (9) wound around the pulley (10), the component (7) to be moved being either attached to the traction means (9) or connected with the drive unit (12), characterized in that the motor and gear unit (14) is rotatable about the axis of the drive shaft (13) against the elastic force of a balancing spring (15), wherein provision is made for a rotation sensor (17,24), which rotation sensor (17,24) is adapted for detecting a rotation of the motor and gear unit (14) and for generating a corresponding rotation detection signal.
X-ray apparatus comprising an X-ray source (7), an X-ray image detector (4,6) in confronting relation to the X-ray source (7), and at least one drive unit (12) for vertical or horizontal movement of the X-ray source (7) or the X-ray image detector (4,6), wherein the drive unit (12) comprises a motor and gear unit (14), a pulley (10) mounted on a drive shaft (13) of the motor and gear unit (14), and traction means (9) wound around the pulley (10), the X-ray source (7) or the X-ray image detector (4,6) being either attached to the traction means (9) or connected with the drive unit (12), characterized in that the motor and gear unit (12) is rotatably mounted on a main frame (16) of the X-ray apparatus such that it is rotatable about the axis of the drive shaft (13) against the elastic force of a balancing spring (15), wherein provision is made for a rotation sensor (17,24), which rotation sensor (17,24) is adapted for detecting a rotation of the motor and gear unit (14) and for generating a corresponding rotation detection signal.
Dependencies are inferred from the claim text.