| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a fall of soil from a seal device that is disposed at an opening of a floor surface for inserting a coupling arm of a pedal. <P>SOLUTION: Two cushion members 21 with a prescribed thickness are juxtaposed, and a thin-plate member 23 having a rear tongue portion 23a and a front tongue portion 23b formed by parallel notches B and B is mounted thereon. A pedal coupling arm 12a is inserted by deforming a mating face A of the cushion members 21, and the tip ends of the front and rear tongue portions 23a and 23b are brought into contact with the coupling arm 12a by a flexible restoration force. <P>COPYRIGHT: (C)2012,JPO&INPIT |
