Material or article handling – Horizontally swinging load support – Swinging about pivot
Patent
1997-04-09
1998-04-28
Underwood, Donald W.
Material or article handling
Horizontally swinging load support
Swinging about pivot
901 15, B25J 1804
Patent
active
057437041
ABSTRACT:
Apparatus for transferring an object between spaced locations comprises first and second articulated arms mounted on a support, each articulated arm having a drive member disposed for rotation about a drive axis and, pinned to it, a shorter driven member. A wrist plate with an integral holding platform is pivotally coupled to the driven members at spaced apart locations. The drive members are rotated from an initial position at which they subtend a first acute angle with the holding platform at an initial position through an intermediate position at which they subtend an angle of 180.degree. to a final position at which they subtend a second acute angle oppositely disposed from the first acute angle with the holding means at a final position overlying the drive axis. The wrist plate extends transverse of the extend-retract path for the holding platform. A pair of spaced pivot drums project from a surface of the wrist plate and distal bores of the first and second driven members are pivotally engaged with the pivot drums. A wrist link mechanism extends between and interconnects the distal ends of the first and second driven members such that equal and opposite rotational movements of the second driven member are imparted to the first driven member. This assures that as the holding platform moves between the initial and final positions, the orientation of the platform remains substantially unchanged.
REFERENCES:
patent: 629698 (1899-07-01), Miller
patent: 1204276 (1916-11-01), Johnson
patent: 2580829 (1952-01-01), Peck
patent: 3522838 (1970-08-01), Ott
patent: 3730595 (1973-05-01), Yakubowski
patent: 3823836 (1974-07-01), Cheney et al.
patent: 3874525 (1975-04-01), Hassan et al.
patent: 3921788 (1975-11-01), Roberson, Jr. et al.
patent: 4062463 (1977-12-01), Hillman et al.
patent: 4139104 (1979-02-01), Mink
patent: 4208159 (1980-06-01), Uehara et al.
patent: 4218173 (1980-08-01), Coindet et al.
patent: 4275978 (1981-06-01), Brooks et al.
patent: 4295780 (1981-10-01), Wada et al.
patent: 4507044 (1985-03-01), Hutchins et al.
patent: 4666366 (1987-05-01), Davis
patent: 4730976 (1988-03-01), Davis et al.
patent: 4909701 (1990-03-01), Hardegen et al.
patent: 5147175 (1992-09-01), Tada
patent: 5180276 (1993-01-01), Hendrickson
patent: 5431529 (1995-07-01), Eastman et al.
patent: 5447409 (1995-09-01), Grunes et al.
Caveney Robert T.
Hofmeister Christopher A.
Brooks Automation Inc.
Underwood Donald W.
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