Cable drive system for carriage movement and method of use

Details Cable drive system for carriage movement and method of use Cable drive system for carriage movement and method of use

1990-02-13

1991-11-12

Cuchlinski, Jr., William A.

Geometrical instruments

Miscellaneous

Light direction

33 324, 346139B, B43L 1300

Patent

active

050636766

ABSTRACT:
A positioning system for use in a plotter having a reverse axis arrangement moves the Y carriage along two generally parallel spaced apart guides and comprises a first and second cable each having equal lenghts and forming a loop respectively attached to opposite ends of the Y carriage. Each of the cables is commonly wound around a single drive drum having double helical grooves formed on it into which respective ones of the first and the second cables is received. Each end of each cable is secured to the drum and is wrapped along its length such that portions of each of the first and second cables are directed away from and back towards the drum to define the loops which move the carriage. This arrangement allows an equal number of turns of each of the first and second cables to be maintained on the drum regardless of the direction in which it is rotated.

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patent: 4665619 (1987-05-01), Pearl
patent: 4916819 (1990-04-01), Gerber

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