Material or article handling – Apparatus for charging a load holding or supporting element... – Load holding or supporting element including gripping means
Patent
1995-06-05
1997-09-16
Merritt, Karen B.
Material or article handling
Apparatus for charging a load holding or supporting element...
Load holding or supporting element including gripping means
414753, 414783, 198379, H05K 300
Patent
active
056673515
ABSTRACT:
A device for positioning and clamping a board includes a plurality of clamping devices for clamping an edge portion of the board. Each clamping device includes positioning members for positioning the board with respect thereto, and a dragging device disposed between the clamping devices for dragging the board into contact with the positioning members. The dragging device is provided with a board clamping portion including a lower claw and an upper claw having rotating disks rotatably installed thereon for swivably clamping the board, and a reciprocating mechanism connected with the board clamping portion for reciprocating the board clamping portion. A board is first clamped by the dragging device and is dragged into contact with the positioning members of the clamping devices. The board is then pivoted and its attitude is straightened by further movement against the positioning members of the clamping devices, then the board is firmly clamped by the clamping devices and the clamping by the dragging device is released. Finally, the clamping devices are moved and a standard location is determined at a portion where the board traverses a sensor, thereby improving the space efficiency and avoiding lowering of positioning accuracy due to scattering of cutting chips.
REFERENCES:
patent: 4217068 (1980-08-01), Fossard
patent: 4284382 (1981-08-01), Silverman
patent: 4297927 (1981-11-01), Kuroda
patent: 4774759 (1988-10-01), Makoto et al.
patent: 5400652 (1995-03-01), Haar
Ishijima Tatsuyuki
Tokairin Takeshi
Merritt Karen B.
Morse Gregory A.
Seikosha Co. Ltd.
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