| 摘要 |
<p>PURPOSE: To pressurize contact projections with an energizing tensile force with each other by punching a contact element for wheel contactor provided with contact projections out of a C shaped spring and executing press die working so that a curved surface of the spring may be more elongated at the outer side edge part than at the inner side edge. CONSTITUTION: A contact element 1 is formed from a C shaped spring and a plate partially punched. Fundamentary parts of the contact element 1 are a web 2, body parts 3, 4, contact projections 7 and supporting parts 8, 9. The contact projections 7 are at a distance with each other. Next, working areas 24-27 in the press die working are the parts with a width (e) which is >=2/3 of a width B of an outer side edge 33 of the spring 23. The working areas 24-27 are continuously worked in a order of 24-25-26-27 or in a reverse order. Then, the two contact projects 7 are pressurized with each other with an energizing force.</p> |
