| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable easy alteration of the number of grounding members to be grounded depending on a situation. <P>SOLUTION: A flip-up mechanism is provided, including a swinging base 2 swingably attached to a welfare device body 1, a grounding member 3 provided on the swinging base 2, an operation link 4 swingably attached to the welfare device body 1, a connecting mechanism 5 connecting the operation link 4 and the swinging base 2, and an operating means 21 to swing the operation link 4. The connecting mechanism 5 includes an engaging projection 5a provided on either one of the swinging base 2 or the operation link 4, and an engaging recess 5b provided on the other. The positional relation of the engaging projection 5a and the engaging recess 5b includes a dead point where no moment is generated to swing the operation link 4 by the force transmitted from the swinging base 2 to the operation link 4 when the swinging base 2 is at the grounding position L and at the flip-up position H. <P>COPYRIGHT: (C)2012,JPO&INPIT |
