Patent ID: 8656771

Claim:
A device for measuring a cloth thickness to measure the thickness of a cloth at the moment when the cloth is pressed with the predetermined pressing force, comprising: a stationary part having a base surface; a movable member having a pressing end to press a cloth against the base surface; a movable member driving mechanism to move the movable member linearly without rotating around itself from an initial position where the pressing end does not contact the cloth up to an over-pressing position where the pressing end presses the cloth against the base surface with a force exceeding the predetermined pressing force; a means for detecting a force with which the pressing end presses the cloth against the base surface; and a means for detecting the space between the base surface and the pressing end at the moment when a force value detected by the force-detecting means reaches the predetermined pressing force while the movable member is being moved from the initial position to the over-pressing position.