Obstacle detector

Details Obstacle detector Obstacle detector

1988-09-29

1990-04-10

Werner, Frank E.

Material or article handling

Vertically swinging load support

901 49, 901 29, 901 45, 901 46, 414730, 414735, B25J 1900

Patent

active

049155741

ABSTRACT:
The obstacle detector (24) has an upper plate (32) which mounts on the arm (22) of the positioning machine. At least three springs (50) pull the lower plate (34) upward and three projections such as balls (36) provide precise location of the lower plate (34). Lateral force causes actuation of switch (60) to terminate motion of the positioning machine. Vertical impact is sensed by upward motion of outer ball slide (68), which is resiliently held down against stop shoulder (76). The handling device has its foot (74) mounted on the bottom of the outer ball slide.

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patent: 4328621 (1982-05-01), Benjamin
patent: 4540331 (1985-10-01), Stanner et al.
patent: 4639184 (1987-01-01), Knasel et al.
patent: 4655674 (1987-04-01), Kohler et al.
patent: 4673329 (1987-06-01), Kato
patent: 4700932 (1987-10-01), Katsuno
patent: 4714865 (1987-12-01), Chin et al.
patent: 4717003 (1988-01-01), McCormick et al.
patent: 4741642 (1988-05-01), Carlton
patent: 4786769 (1988-11-01), Knasel et al.
patent: 4797564 (1989-01-01), Ramunas
patent: 4821584 (1989-04-01), Lembke

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