| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a screw fall prevention device capable of surely collecting a screw, loosened by a screwdriver tool, only by a one hand operation without dropping. <P>SOLUTION: The screw fall prevention device includes: an inner insulated cylinder 10 that has a catching part 122 capable of holding the screw 83 loosened by the screwdriver tool 90 and a first pressing surface 122a capable of contacting a connecting terminal 82 side of a terminal base 20; an outer insulated cylinder 20 that has a holding cylinder part 21 covering the catching part 122 and a second pressing surface 21c capable of contacting the connecting terminal 82 of the terminal base 80; and an energizing means 40 that energizes the outer insulated cylinder 20 in an axial direction, so that the second pressing surface 21c projects from the first pressing surface 122a in the axial direction, and energizes the inner insulated cylinder 10 in a direction to retreat from the outer insulated cylinder 20 in a condition that the first pressing surface 122a and the second pressing surface 21c are in contact with the connecting terminal 82 side of the terminal base 80. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
