Material or article handling – Vertically swinging load support – Grab
Patent
1988-12-14
1991-07-30
Spar, Robert J.
Material or article handling
Vertically swinging load support
Grab
901 39, 901 41, 294 864, 2941191, 72422, B25J 1504
Patent
active
050355660
ABSTRACT:
A manipulator is provided for a plate bending machine containing an arm which extends in the vertical direction and a pair of bracket members in which one bracket member can freely approach and withdraw from the other, wherein the bracket members are provided with engaging members which can engage with and be released from an engaging section formed on the jaws for grasping a plate material. A jaw exchanging device which contains in turn a plurality of jaw release structures which can mount and remove the jaws of the manipulator and can retain the jaw before mounting and after removal thereof, and a transfer structure which can transfer the plurality of jaw release structures together between the manipulator and a jaw storage magazine, and selectively transfer any one of the jaw release structures to a jaw changing position on the manipulator in a position on the side of the manipulator are also provided.
REFERENCES:
patent: 3823466 (1974-07-01), Jerue
patent: 4591198 (1986-05-01), Monforte
patent: 4698898 (1987-10-01), Horsch
patent: 4784421 (1988-11-01), Alvite
patent: 4795124 (1989-01-01), Nagai
Sartorio Franco
Vergano Stefano
Amada Company Limited
Spar Robert J.
Underwood Donald W.
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