Patent ID: 6115929
Filing Date: 2000-09-12
Classification: G01C,H01H

Abstract:
A tilt detecting device comprising:a conductive ball which is made of conductive material;an insulation housing comprising a pair of cases which have concavities at surfaces thereof which face each other to form a ball containing chamber for containing the conductive ball, said concavities having bottom surfaces and a recess portion formed in at least one of the bottom surfaces for keeping the conductive ball stable; andtwo conductive pins each having two end portions which are mounted to the pair of cases, respectively, said two conductive pins passing through the ball containing chamber of the insulation housing approximately in parallel with each other with a predetermined space therebetween;wherein when the insulation housing is only slightly inclined at an angle less than a predetermined value, the conductive ball does not exit the recess portion due to gravity and the conductive ball is not in contact with the two conductive pins, so that an electrical state between the two conductive pins is off and no detection signal is output; andwherein when the insulation housing is inclined at an angle greater than the predetermined value, the conductive ball exits the recess portion due to gravity and is brought into electrical contact with the two conductive pins, so that the electrical state between the two conductive pins is switched to on and a corresponding detection signal is output.