Graphic tactile cell

Details Graphic tactile cell Graphic tactile cell

1997-04-17

1998-12-01

Hirsch, Paul J.

Education and demonstration

Communication aids for the handicapped

Tactile reading aid

434113, G09B 2100

Patent

active

058428674

ABSTRACT:
This invention relates to a graphic tactile cell for indicating a graphic pattern, in which the arrangement of the tactile surface can be enlarged easily. This graphic tactile cell includes tactile pins for indicating a graphic pattern by vertical movement, piezoelectric element segments which are bent upon application of a voltage to vertically drive the tactile pins, and a unit base for holding the tactile pins and the piezoelectric element segments. A plurality of cell units each including a unit number of tactile pins, corresponding piezoelectric element segments, and a unit base for holding the tactile pins and the piezoelectric element segments are coupled vertically and horizontally such that the tactile pins are arranged at an equal interval in vertical and horizontal directions. Proximal ends of the piezoelectric element segments are held by the unit base through plastically deformable adjusting members.

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Japanese Abstract 08220988; Fujiwara Yasuhiro; Braille Data Input/Output Terminal; Aug. 30, 1996.
Japanese Abstract 06289775; Kumeno Kiyomitsu; Braille Character Reading Sensor; Oct. 18, 1994.
Japanese Abstract 05333765; Shimokura Kenichiro; Data Input/Output Device; Dec. 17, 1993.
European Patent Office Search Report; 97106110.6; KGS Corporation; Feb. 24, 1998.

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