Patent ID: 7083439

Claim:
A mobile terminal apparatus comprising: a housing including an opening and a claw engaging rib formed inside the opening at a location interfering with a cap insertion; a cap including a cap attachment made of a flexible material, the cap attachment including a claw portion that is engaged with the claw engaging rib for preventing the cap from slipping off in a cap extraction direction and a connection portion that includes the claw portion at a leading edge in an integral manner, and is formed with a thickness slender enough to enter an engaging gap narrower than a thickness of the claw; and a cap body that that is formed at a trailing edge of the connection portion in an integral manner, and closes the opening in an openable manner; and a bypass engaging structure with which the claw bypasses the claw engaging rib and engages with the claw engaging rib from one side of the claw engaging rib, when attaching the cap.