| 摘要 |
PROBLEM TO BE SOLVED: To improve operability by eliminating a sense of incompatibility transmitted to hands of a user, when pushing a sheet casing in a device body. SOLUTION: An engaging arm 55 arranged in the sheet casing is energized in the direction for changing an attitude to an engaging attitude from an engagement releasing attitude to a projection 3c arranged in the device body by a spring 56. When pushing the sheet casing in the device body, its engaging arm contacts with the projection, and becomes the engagement releasing attitude against energizing force, and afterwards, becomes the engaging attitude by further pushing in the sheet casing. When contacting with the projection, the direction of force acting on the sheet casing by contact pressure acting on the engaging arm, is constituted to turn downward in the vertical direction. COPYRIGHT: (C)2006,JPO&NCIPI
|
