Self-locking telescoping manipulator arm

Details Self-locking telescoping manipulator arm Self-locking telescoping manipulator arm

1983-09-30

1985-10-15

Siemens, Terrance L.

Material or article handling

Load carried along a horizontal linear path

Having gripper means

901 31, 901 25, 414718, 414 4, 212230, B25J 1500

Patent

active

045471215

ABSTRACT:
A telescoping manipulator arm and pivotable finger assembly are disclosed. The telescoping arm assembly (A) includes a generally T-shaped arm (18) having three outwardly extending fingers (18a, 18b, 18c) guided on the grooved roller guides (12, 14, 16) to compensate for environmental variations. The pivotable finger assembly (D) includes four pivoting fingers (50, 66, 70, 74). Arcuate teeth (52, 58, 60, 62) are formed on the ends of the fingers. A rack (54) having teeth on four sides meshes with each one of the fingers. One surface of the rack (54) includes teeth (56) along its entire surface which mesh with teeth (52) of the finger (50). The teeth (56) at the remote end of the rack (54) engage teeth (80) of a gear wheel (81). The wheel (81) includes a worm (82) which meshes with a worm drive shaft of the drive motor (86) providing a ninety degree self-locking drive (E) for locking the fingers in a desired position. A similar drive (C, 40, 42) provides a self-locking drive for positioning the telescoping arm (18).

REFERENCES:
patent: 2861701 (1958-11-01), Bergsland et al.
patent: 3144947 (1964-08-01), Pittwood
patent: 4395192 (1983-07-01), Schafly

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