Geometrical instruments – Scriber
Patent
1985-03-07
1986-01-28
Little, Willis
Geometrical instruments
Scriber
33180R, 33189, G01B 525
Patent
active
045661944
ABSTRACT:
A press plate positioning apparatus for an automatic drawing machine so as to form punch holes at a punch hole forming edge of a press plate placed and fixed on a drawing board and draw registration marks at predetermined positions, has: an elongated cam plate extending in parallel with a positioning edge of the press plate which extends from the drawing board and which is perpendicular to the punch hole forming edge, the elongated cam plate being moved in a direction parallel to the positioning edge and being provided with a plurality of cam surfaces which are arranged in the longitudinal direction thereof and each of which has a plurality of stepwise horizontal surfaces and at least one inclined surface connecting the stepwise horizontal surfaces; and a plurality of positioning blocks, each of the positioning blocks being adapted not to be moved with respect to the positioning edge, being biased downward, being guided together with a corresponding gripper block such that each positioning block is vertically moved by a behavior of the cam surface upon reciprocal movement of the cam plate so as to bring the positioning edge into contact with one of stepwise vertical surfaces, and being locked in position by clicking means.
REFERENCES:
patent: 3108381 (1963-10-01), Kuebler
patent: 3492900 (1970-02-01), Hill et al.
patent: 3844253 (1974-10-01), Staub et al.
patent: 4425076 (1984-01-01), Colineau
patent: 4523749 (1985-06-01), Kindgren et al.
Enomoto Fukumasa
Ishii Satoshi
Iwasaki Masahiro
Kawaguchi Yoichi
Kurata Hironobu
Komori Printing
Little Willis
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