公开(公告)号：US3636287A

公开(公告)日：1972-01-18

申请号：US3636287D

申请日：1970-01-15

Applicant: DANFOSS AS

Inventor： JORGENSEN JORGEN ,  IVERSEN NIS B ,  ANDRESEN JENS N

IPC: H01H35/26 ,  H01H35/32

CPC classification number: H01H35/32 ,  H01H35/2607

Abstract: The invention relates to a snap-action switch assembly of the type having a main lever arm and an omega spring. The lever arm is acted upon by a bellows and a coil spring which are adjacently positioned on the opposite sides of a fulcrum which pivotally supports the lever arm. The omega spring engages one end of the lever arm and an adjustment feature for the omega spring is provided. The force of the omega spring can be adjusted over a relatively wide range because it does not have to perform the additional function of providing sufficient force to press the lever arm against its pivoting bearing. The adjustment means includes a slide member and a cam means accessible to an operator and for operating said slide member.