| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize natural operability by increasing the degree of freedom of stroke setting and reaction force setting of switch operation. <P>SOLUTION: A shaft part 11b of a piston body 11 is inserted into a cylinder part CYLA so that it can reciprocate. A beltlike elastic constitution body 14 has extending/contracting parts 14b between a fixed part 14a at both its ends and a curved tip part 14c; when a guide lid 12 is fitted, both the fixed parts 14a are fixed before and behind an annular projection part 7a corresponding to an opening end part of the cylinder part CYLA respectively and the tip part 14c receives a downward pressing force from a tip part 11c of the piston body 11. In pressing-down operation, the extension/contracting part 14b extends and then the tip part 14c moves down interlocked with the piston body 11 to make a movable contact 15 provided to the tip part 14c contact and leave a fixed contact 16, thereby placing a piston type switch PSTA in switching operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
