X-Y-Z drive apparatus

Details X-Y-Z drive apparatus X-Y-Z drive apparatus

1992-06-19

1993-11-30

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

74 8915, 901 16, G05G 1100

Patent

active

052654915

ABSTRACT:
An X-Y-Z positioning apparatus includes an X table which may move along an X axis and a Y table which is mounted on the X table and movable along a Y axis. A pair of guide rails is provided on the X table and a pair of sliders mounted at the bottom surface of the Y table is slidably mounted on the pair of guide rails, respectively. The Y table is formed with an opening at a location between the pair of guide rails, through which a Z shaft assembly extends when mounted on the Y table. Thus, no significant moment is applied to the Y table due to the weight of the Z shaft assembly. Preferably, the Z shaft assembly is so arranged with its center of gravity located below the Y table when mounted thereon so as to provide an increased stability in operation.

REFERENCES:
patent: 3279079 (1966-10-01), Schiler
patent: 3432135 (1969-03-01), Carr
patent: 3884363 (1975-05-01), Ajlouny
patent: 4628756 (1986-12-01), Kimura et al.
patent: 4729536 (1988-03-01), Scala
patent: 4964503 (1990-10-01), Nishiyama et al.

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