Tactile screen device.

摘要

Tactile screen device (20) equipped with a movable plate (22), having a weight P and a fixed frame (21) which mutually interact via at least two detectors (231, 232, 233) having a blade with strain gauges (12) for detecting the coordinates of the points of application of pressure forces exerted on the movable plate (22). In order to balance the weight P of the plate (22) the latter is suspended by suspension means (241, 242). The plate (22) may also be held at its lower part by elastic attachments (251, 252). It is possible to equip the detectors having a blade with strain gauges with a U-shaped element (13) which acts on the blade with the aid of stops (14, 15). The U-shaped element holds the blade without play in one direction and allows it to move with slight friction in another perpendicular direction. <IMAGE>