| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening/closing lid configured so as not to float by sufficiently utilizing the weight of the lid body itself when an opening is covered with the lid, and so as to perform a slow operation when the lid body rotates and closes the opening.SOLUTION: The opening/closing lid includes: a disc-like lid body 2; one support shaft 3 integrated as the rotary shaft of the lid body 2, and protruded to both outsides of the lid body 2 in one side area of the lid body 2 or pin shafts 92 at least one of which is integrated with the lid body 2, and protruded to the outside of the lid body 2 as the rotary shaft divided into two in one side area of the lid body 2; an aperture frame 1 consisting of frame members enclosing four sides of an aperture O in which the lid body 2 is housed, and having a bearing arranged on one side of the frame members for supporting the support shaft 3 or the pin shafts 92; and a rotary damper device 7 configured to engage at least one end of the support shaft 3 or the end of the pin shaft 92 integrated with the lid body with an engagement part 75 of a rotary body 74, and to fix a main body case 71 in which the rotary body 74 is housed to the aperture frame 1, and to, when the body lid 2 is shifted from a state that the aperture O opens to a state that the aperture O closes, brake the rotation of the support shaft 3 or the pin shaft 92.SELECTED DRAWING: Figure 1 |
