Patent ID: 9007412
Filing Date: 2015-04-14
Classification: B41J

Abstract:
1. An electronic device comprising: a housing that forms an outer frame of the device and includes an opening portion; and an opening/closing cover configured to open/close said opening portion, one of said opening/closing cover and said housing including a shaft portion having a predetermined axis, the other of said opening/closing cover and said housing including a bearing hole portion engaging with said shaft portion rotatably about said axis, said shaft portion including a first protruding portion in a part of an area in a circumferential direction of the shaft portion, said bearing hole portion including a second protruding portion in a part of an area in a circumferential direction of the bearing hole portion, and said first protruding portion and said second protruding portion being, configured to be separated away from each other in the circumferential direction when said opening/closing cover is in a closed state; configured to become closer to each other in a distance in the circumferential direction along with rotation in an opening direction from said closed state of said opening/closing cover; configured to be in contact with each other when the opening/closing cover arrives at a first rotation position; and configured to release an engagement of said shaft portion and said bearing hole portion by the manner that one of said first protruding portion and second protruding portion overrides the other of said first protruding portion and second protruding portion to overlap each other in a direction of said axis when the opening/closing cover is further rotated in said opening direction from said first rotation position to arrive at a second rotation position, wherein: said shaft portion includes: a shaft main body having a cylindrical shape; and said first protruding portion that protrudes in a direction of said axis from a peripheral edge portion of said shaft main body, said bearing hole portion includes: a hole main body configured to slidably store said shaft main body; and main body; and said second protruding portion that protrudes to an inner side in a radial direction from a peripheral edge portion of said hole main body, and wherein during the period from when said opening/closing cover is in said closed state to when said opening/closing cover arrives at said first rotation position, said first protruding portion of said shaft portion is configured to position on the inner side of said hole main body of said bearing hole portion in the radial direction.