Multi-stage telescoping structure

Details Multi-stage telescoping structure Multi-stage telescoping structure

1995-09-13

1998-03-31

Underwood, Donald W.

Material or article handling

Horizontally swinging load support

Swinging about pivot

74 8915, 212296, 212348, 4147445, 901 15, 901 23, G25J 1804

Patent

active

057330964

ABSTRACT:
A multi-stage telescoping tube structure and a robot including a multi-stage telescoping tube structure. The multi-stage telescoping tube structure includes an outer tube, an intermediate tube, and an inner tube. The intermediate tube is slidably received in the outer tube, and the inner tube is slidably received in the intermediate tube. It further includes a multi-stage screw for arrangement translating rotary motion into linear movement of the tubes, and a drive means coupled to the screw arrangement. The robot further includes a support bracket, rotatably supporting the multi-stage telescoping tube structure, and an electric motor for rotating the arrangement. The structure further includes rail guides engagable with complimentary horizontally extending rails for horizontal movement of the robot.

REFERENCES:
patent: 4566847 (1986-01-01), Maeda et al.
patent: 4635492 (1987-01-01), Uebelhart
patent: 4749327 (1988-06-01), Roda
patent: 4793197 (1988-12-01), Petrovsky
patent: 4818175 (1989-04-01), Kimura
patent: 4904153 (1990-02-01), Iwasawa et al.
patent: 5114302 (1992-05-01), Meisser et al.
Van Doren, Matthew J., Precision Machine Design for the Semiconductor Equipment Manufacturing Industry, Massachusetts Institute of Technology, May 1995.

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