Patent ID: 8276284
Filing Date: 2012-10-02
Classification: G01C,H01H

Abstract:
1. A tilt-sensing apparatus comprising: a case sealed with a fluid partially filled and fixed to reflect a slope of a target to be measured; a tilt lever pivotably disposed in the case and pivotably rotating by a buoyancy of the fluid; a first amplifying lever coupled to one side of the tilt lever to vertically move according to the buoyancy of the fluid when the case tilts to one side, the first amplifying lever having one side rotating in proportion to a rotation angle of the tilt lever after the other side thereof spaced from a center of rotation start to be interfered with a first gap control part projecting from an inner wall of the case; a second amplifying lever coupled to the other side of the tilt lever to vertically move according to the buoyancy of the fluid when the case tilts to the other side, the second amplifying lever having one side rotating in proportion to the rotation angle of the tilt lever after the other side thereof spaced from the center of rotation start to be interfered with a second gap control part projecting from the inner wall of the case; a first contact sensor fixed on the first amplifying lever to output an ON-signal indicating that the tilt lever rotates beyond a predetermined angle in one direction when the tilt lever contacts a first contact at an inner side of the case due to rotation of the first amplifying lever caused by the rotation of the tilt lever in one direction by a rotation angle greater than a predetermined rotation angle; and a second contact sensor fixed on the second amplifying lever to output an ON-signal indicating that the tilt lever rotates beyond the predetermined angle in the other direction when the tilt lever contacts a second contact at the inner side of the case due to rotation of the second amplifying lever caused by the rotation of the tilt lever in the other direction by a rotation angle greater than a predetermined rotation angle.