公开(公告)号：US4250369A

公开(公告)日：1981-02-10

申请号：US020823

申请日：1979-03-15

申请人： Robert E. Larkin ,  Earl T. Piber

发明人： Robert E. Larkin ,  Earl T. Piber

IPC分类号： H01H3/04

CPC分类号： H01H3/04

摘要： A formed pivot structure for a pivotally operable lever mounted in a bushing such as a toggle switch lever bushing. The pivot is provided by a suitable through-hole, opposite blind holes or circular groove in the enlarged portion of the lever into which thin portions of the bushing, either perforated or unperforated, are punched from opposite sides of the bushing. This provides a pair of aligned pivots affording free pivoting of the toggle lever in one plane while retaining it snugly from wobbling out of said plane. The pivot is formed by the method of forming opposite thin sections in the bushing, forming notches in the toggle lever such as the through-hole, opposite blind holes counter-sunk if desired, or circular beveled groove in the enlarged, partial-spherical portion of the toggle lever, inserting the toggle lever within the bushing and retaining it therein in position while two punches are actuated to form the thin sections of the bushing into the corresponding notches in the toggle lever for a close fit while allowing free pivoting of the toggle lever in one plane.

摘要翻译： 一种用于可枢转地操作的杠杆的枢转结构，其安装在诸如肘节式开关杆套筒之类的衬套中。 枢轴由杠杆的扩大部分中的合适的通孔，相对的盲孔或圆形槽提供，其中穿孔或穿孔的套管的薄部分从衬套的相对侧冲压入该孔中。 这提供了一对对准的枢轴，其提供了肘杆在一个平面中的自由枢转，同时保持其紧紧地摆动在所述平面之外。 通过在衬套中形成相对的薄部分的方法形成枢轴，在诸如通孔的肘杆中形成凹口，如果需要的话，在相反的盲孔相反的凹槽处或在扩大的局部球形部分中的圆形斜槽 的肘节杆，将肘杆插入衬套内并将其保持在适当位置，同时致动两个冲头以将衬套的薄部分形成肘节杆中的相应凹口，以便紧密配合，同时允许肘节的自由枢转 杠杆在一个平面。