Abstract: To provide a novel opening/closing structure for a flip provided to a portable phone, which is superior in evaluation on the market, a flip (3) that is rotatable in an opening direction from a condition where a phone operating portion (2) provided on a surface of a portable phone body (1) is covered by the flip to the condition where the phone operating portion (2) is exposed is provided at a predetermined position on the surface of the portable phone body (1).

Abstract: To provide a novel hinge structure for a collapsible portable phone, which is very convenient and highly valuable on the market, the hinge structure includes an operating member (2) provided with a phone operating portion (1) on its surface; a display member (3), pivotally and collapsibly coupled with the operating member (2) and provided with a display image field (6) in which numerals and/or letters for phone numbers and/or names may be displayed on its surface; and a biasing mechanism S that may exhibit a closing biasing force for biasing the display member (3) in a closing direction between a closed condition that the display member (3) is collapsed to the operating member (2) and a predetermined rotational position A where the display member (3) is rotated to the operating member (2) in an opening direction and may exhibit an opening biasing force for biasing the display member (3) in the opening direction between a fully opened condition that the display member (3) is fully opened to the operating membe

Abstract: To provide a novel opening/closing structure for a flip provided to a portable phone, which is superior in evaluation on the market, a flip (3) that is rotatable in an opening direction from a condition where a phone operating portion (2) provided on a surface of a portable phone body (1) is covered by the flip to the condition where the phone operating portion (2) is exposed is provided at a predetermined position on the surface of the portable phone body (1).

Abstract: A hinge device is disclosed for interconnecting a first member with a second member for relative rotational movement, the hinge device comprising: a rod means connected with the first member; a sleeve member for receiving the rod means for relative rotation therewithin, the sleeve member being connected with the second member and having an interior surface extending longitudinally therethrough, the interior surface being in contact with the outer surface of the shaft means in order to provide a friction force between the shaft means and the sleeve member, the interior surface including a plurality of contact regions for exerting different friction forces on the shaft means.