Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1992-03-30
1993-06-29
Burr, Edgar S.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
400131, B41J 223
Patent
active
052228193
ABSTRACT:
A braille printer that embosses braille characters line by line, in which embossing dies formed in the form of a line on which a plurality of projections or recesses for embossing braille characters, and debossing dies, on which a plurality of projections or recesses are formed in a line, are made to face each other, and the recesses and projections at positions corresponding to printing signals are pressed against each other. Cams for making the embossing dies move forward are disposed at both end positions of a line of characters below each of the embossing dies which are held at embossing positions in such a manner as to be movable forward or backward. The contour of each of these cams at both end positions of the line of characters have an apex, each of these apices being the same distance from a cam shaft. The apex of one of the cams is formed to be continuous over a predetermined rotational angle, and the apex of the other cam is formed so as to have a phase difference relative to the starting point of the range of the predetermined rotational angle.
REFERENCES:
patent: 3726380 (1973-04-01), Beer et al.
patent: 3901369 (1975-08-01), Tsukamoto et al.
patent: 4183683 (1980-01-01), Hiratsuka et al.
patent: 4261663 (1981-04-01), Grimnes
patent: 4397573 (1983-08-01), Thiel
Goto Isamu
Tsukuda Yoshimi
Burr Edgar S.
Hilten John S.
Toyo Hybrid Co., Ltd.
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