Cutting – With work immobilizer – Work-stop abutment
Patent
1982-06-07
1984-02-28
Yost, Frank T.
Cutting
With work immobilizer
Work-stop abutment
83522, 83917, 144217, 269305, 269319, B26D 701
Patent
active
044336004
ABSTRACT:
A new and unique workpiece locating device for a corner shear machine which serves for determining a required position prior to starting a shearing operation when it is to be conducted at a corner or on one side of a workpiece in the form of square or rectangular sheet material. The workpiece locating device includes a pair of symmetrically located grooves extending in a V-shaped form relative to a center line extending through the center of dies across a table and a pair of rotary stoppers displaceably mounted on said grooves so as to slide to and fro therealong. The workpiece abutment edge of the respective stoppers is adjustable within an extent of an angle of 45 degrees in both the rotational directions relative to a plane extending at a right angle to the cutting edge of the dies. Measuring scales for both corner shearing and side shearing are fixedly mounted on the table in the vicinity of the grooves and in parallel to the latter. Corner shearing is effected under a positional condition that the workpiece abutment edge of the respective stoppers is located at a right angle relative to the cutting edge of the dies, whereas side shearing is effected under a positional condition that the workpiece abutment edge of one of the stoppers is located at a position turned by an angle of 45 degrees in one direction from the former position, while the workpiece abutment edge of the other one of the stoppers is located at another position turned by an angle of 45 degrees in the opposite direction.
REFERENCES:
patent: 58183 (1866-09-01), Whitlock
patent: 580658 (1897-04-01), Burnham
patent: 1885370 (1932-11-01), Minkow
patent: 3215017 (1965-11-01), Rutz
patent: 3592093 (1971-07-01), Cantelli
patent: 4200019 (1980-04-01), Fazis
patent: 4283978 (1981-08-01), Kasai et al.
Takeda Machinery Works Company, Ltd.
Yost Frank T.
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