Robotic end effector for grasping objects

Details Robotic end effector for grasping objects Robotic end effector for grasping objects

1989-11-20

1991-04-30

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

2941191, 901 37, 901 39, B25J 914

Patent

active

050112074

ABSTRACT:
A robotic hand to use as an end effector to grasp objects, either of regular or irregular configuration. Numerous embodiments are described: each embodiment includes a housing and a plurality of finger units that are deployed from the housing, with tips of fingers contacting the object at a sufficient number of points to support the object. Each finger unit is provided with a guide whereby the finger unit is constrained to move along a fixed path. Pneumatic, hydraulic and electromechanical deployment systems are typically used. Deployment is in unison, individually or in groups. The embodiments are of particular value when operated remotely, and where visual observation of an object is obscured.

REFERENCES:
patent: 2399824 (1946-05-01), Pressman
patent: 3219382 (1965-11-01), Hugentobler
patent: 3868102 (1975-02-01), Pevar
patent: 4047709 (1977-09-01), Thyberg et al.
patent: 4088312 (1978-05-01), Prosch et al.
patent: 4572564 (1986-02-01), Cipolla
patent: 4609220 (1986-09-01), Scott
patent: 4632444 (1986-12-01), Martinez et al.

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