Linear drive for converting a rotational drive movement into a linear output movement
AssigneeERNO Raumfahrttechnik GmbH
InventorsRalf Baginski, Roland Felkai
Life of this patent
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Abstract
A linear drive for use in air and space travel converts the rotational drive of an electromotor into a linear motion of a runner which is secured to at least one flexible coupling member. The flexible coupling member runs around at least one guide member at one end thereof, and around a drive wheel driven by the electric motor at the other end of the flexible coupling member. The rotating drive wheel and the guide member both change the movement direction of the flexible coupling member, whereby the runner can run back and forth between the drive wheel and the guide member.
Claims13
A linear drive, particularly for use in an aircraft or spacecraft, comprising an electromotor for providing a rotational power output, a runner for performing a linear movement, and means coupling said runner to said rotational power output of said electromotor for converting rotation into said linear movement, said coupling means comprising a flexible member and guide means supporting said flexible member at least at one location away from said electromotor and so that said flexible member extends in a first plane, said flexible member positioning said runner, said guide means changing the movement direction of said flexible member, said electromotor comprising a drive element for engaging and driving said flexible member, longitudinal mounting means having a first longitudinal axis, said mounting means supporting said guide means thereby forming an endless loop of said flexible member, and means for securing said electromotor to said mounting means inside said endless loop, said electromotor having a second longitudinal axis extending in the same direction as said first longitudinal axis of said mounting means (7), said drive element defining a second plane extending perpendicularly to said first plane and perpendicularly to said first and second longitudinal axis, whereby said drive element drives said flexible member crosswise of said longitudinal axis.
Dependencies are inferred from the claim text.