Portable device

A portable device comprising:

• a first housing;
• a second housing slidably coupled to the first housing in a predetermined sliding range, the second housing being slidable from one end of the predetermined slidable range to the other end thereof via the middle position thereof;
• a first spring member;
• a second spring member;
• a first arm connected to the first spring member and engaged with the first housing;
• a second arm connected to the second spring member and engaged with the second housing;
• a connecting arm connecting the first spring member with the second spring member;
• the first, the second and the connecting arms extending generally in the same plane, the first and the second arms being disposed to form acute angles with the connecting arm around the first and the second spring members, respectively;
• the first and second spring members being capable of generating reaction forces when the first and second arms are forcibly driven to reduce the angles;
• wherein when the second housing is slid from the one end to the middle position of the sliding range, the first and second spring members generate a reaction force by reduction of the angles while the second spring member stays in the initial position, and when the second housing is slid from the middle position to the other end of the sliding range, the first and second spring members move along the sliding of the second housing.