| 摘要 |
<p>Provided is an opening-and-closing mechanism that can be latched at a predetermined opening angle, wherein the latching can be disengaged with a small force in the opening direction whereas the latching is gradually disengaged in the closing direction. An opening-and-closing mechanism 1 includes a first supporting member 9 and a second supporting member 7 disposed relatively rotatable around a rotary axis; a plurality of protruding portions 15 provided on the first supporting member 9; and a plurality of depressed portions 23A, 23B, 23C, 23D, 23E, and 23F provided on the second supporting member 7 and engaged with the plurality of protruding portions 15, wherein, when the first supporting member 9 and the second supporting member 7 are in a plurality of predetermined relative alignments, some of the plurality of protruding portions 15 and some of the plurality of depressed portions 23A, 23B, 23C, 23D, 23E, and 23F are engaged, and wherein forces required for disengaging the protruding portions 15 and the depressed portions 23A, 23B, 23C, 23D, 23E, and 23F by rotating at least one of the first supporting member 9 and second supporting member 7 differ in a first rotation direction and a second rotation direction.</p> |
