Mobile terminal apparatus, method of disposing flexible board, method of correcting closing manipulation, and method of preventing damage to flexible board

A mobile terminal apparatus comprising:

• an upper case;
• a lower case;
• a sliding rotation mechanism which is fixed to the upper case, which has a sliding mechanism which performs sliding movement on the upper case through a sliding supporting plate for slide-movably supporting the upper case and a rotation mechanism which rotates the upper case with respect to the lower case, which performs an opening-direction sliding movement on the upper case through the sliding supporting plate at the time of an opening manipulation, which allows the upper case to stand up at a predetermined angle with respect to the lower case by performing an opening-direction rotation movement on the upper case through the sliding supporting plate after the opening-direction sliding movement, which performs a closing-direction rotation movement opposite to the opening-direction rotation movement on the upper case, which allows the upper case to stand up at the predetermined angle with respect to the lower case through the sliding supporting plate at the time of a closing manipulation, and which performs a closing-direction sliding movement opposite to the opening-direction sliding movement on the upper case through the sliding supporting plate after the closing-direction rotation movement;
• a protrusion member which is fixed to the upper case so as to protrude from the upper case toward the lower case;
• a lock block which is fixed to the rotation mechanism so as to rotate in cooperation with the rotation mechanism of the sliding rotation mechanism and which is in contact with the protrusion member disposed to the upper case so as to restrict the sliding movement of the upper case when the upper case is allowed to slidingly move in the closing-direction in the state where the upper case is allowed to stand up at the predetermined angle with respect to the lower case;
• and
• a flexible board which is disposed between the upper case and the lower case so that electrical parts disposed in the upper case and electrical parts disposed in the lower case are electrically connected to each other,
• wherein the flexible board includes a first portion exposed from the upper case, and
• wherein the flexible board includes a second portion, just after the first portion, that is adhered to the sliding supporting plate through an adhesive member.