A segmented spindle, also known by the trademark Kataka, is a specialized mechanical
linear actuator
A linear actuator is an actuator that creates motion in a straight line, in contrast to the circular motion of a conventional electric motor. Linear actuators are used in machine tools and industrial machinery, in computer peripherals such as ...
conceived by the Danish mechanical engineer Jens Joerren Soerensen during the mid-1990s. The
actuator
An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve. In simple terms, it is a "mover".
An actuator requires a control device (controlled by control signal) a ...
forms a telescoping tubular column, or spindle, from linked segments resembling curved parallelograms. The telescoping linear actuator has a lifting capacity up to 200 kg (~440 pounds) for a travel of 400 mm (~15.75 inches).
[Technical Specifications – KATAKA 400: ]
A short elongated housing forms the base of the actuator and includes an electrical gear drive and storage magazine for the spindle segments. The drive spins a helically grooved wheel that engages the similarly grooved inside face of the spindle segments. As the wheel spins it simultaneously pull the segments from their horizontal arrangement in the magazine and stacks them along the vertical path of a helix into a rigid tubular column. The reverse process lowers the column.
See also
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Helical band actuator
A helical band actuator, generally known by the trademark Spiralift, is a complex and specialized linear actuator used in stage lifts and material handling lifts. The actuator forms a high-capacity telescoping tubular column (lifting capacitie ...
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Rigid belt actuator
A rigid belt actuator, also known as a push-pull belt actuator or zipper belt actuator, is a specialized mechanical linear actuator used in push-pull and lift applications. The actuator is a belt and pinion device that forms a telescoping beam o ...
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Rigid chain actuator
A rigid chain actuator, known variously as a linear chain actuator, push-pull chain actuator, electric chain actuator or column-forming chain actuator, is a specialized mechanical linear actuator used in window operating, push-pull material hand ...
References
External links
Kataka web site*
Actuators
Hardware (mechanical)
Gears
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