Disclosed herein is an apparatus for operating the cover of a mobile
device. The apparatus includes a cylindrical housing formed on one end of
the device cover. The cylindrical housing accommodates an operating means.
The cylindrical housing has a projection at its first side and is open at
its second side. Two holding projections are integrated with a device
body, have opposite holding recesses and rotatably support the cylindrical
housing. A hinge shaft is connected to the output end of the operating
means, the cam portion of which is inserted into one of the holding
recesses. Elasticity means is situated in the holding recess into which
the cam portion is inserted for exerting a predetermined amount of elastic
force on the cam portion. A switch is formed on one side of the device
body for applying an operating signal to the operating means. Position
sensing means is comprised of a brush housing and a rectification housing
attached to the operating means and the hinge shaft at opposite positions
for detecting the same phase state when the first and second patterns are
electrically connected and applied with electricity at certain positions
by the brush.
