Lever switch
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMasaki Nakase, Yasuchika Kudo, Yusho Nakase
Life of this patent
Estimating the term…
Abstract
A lever switch comprises a case (11) provided with a common contact (12) and stationary contacts (13, 14), a generally M-shaped movable contact (15) having a middle part (15A) in resilient contact with the common contact (12) and contact points (15E) at both ends thereof, a lever (18) disposed rotatably to the case (11), and a pair of cams (16, 17). The contact points (15E) at both ends of the movable contact (15) are in contact resiliently with two confronting inner walls of the case (11) where the stationary contacts (13, 14) are disposed. The contact points (15E) of the movable contact (15) slide and come into contact resiliently with the stationary contacts by turning motion of the lever (18).
Claims7
A lever switch comprising:
- a case (11) having an opening in an upper surface, provided with a common contact (12) and at least one stationary contact (13, 14), said common contact (12) being disposed to a center area of a first inner wall of said case (11), and said at least one stationary contact (13, 14) being disposed to any of a second inner wall and a third inner wall opposite each other in said case (11);
- a movable contact (15) having a middle part (15A), first arms (15B) extending from both ends of said middle part (15A) in a direction vertical to said first inner wall, turnover parts (15C) in continuity with ends of said first arms (15B), second arms (15D) in continuity with ends of said turnover parts (15C), and contact points (15E) in continuity with said second arms (15D), said middle part (15A) being in contact resiliently with said common contact (12) at all times, and said contact points (15E) being in contact resiliently with said second inner wall and said third inner wall respectively in a slidable manner;
- a pair of cams (16, 17) disposed rotatably to a fourth inner wall of said case (11), a lower surface of a depressing part of each of said pair of cams (16, 17) abutting upon a respective one of the turnover parts (15C) of said movable contact (15);
- and
- a lever (18) disposed rotatably to said fourth inner wall of said case (11), a lower side of said lever (18) abutting upon said depressing parts (16B, 17B) of said pair of cams (16, 17), and an upper part of said lever (18) projecting through said opening in said case (11),
- wherein one of said contact points (15E) makes resilient contact with respective one of said at least one stationary contact (13, 14) in concert with a turning movement of said lever (18).
A lever switch comprising:
- a case (21) having an opening in an upper surface, provided with a common contact (22) and at least one stationary contact (13, 14), said common contact (22) being disposed to a center area of a first inner wall of said case (21), and said stationary contact (13, 14) being disposed to any of a second inner wall and a third inner wall opposite each other in said case (21);
- a movable contact (25) having a middle part (25A), first arms (25B) in continuity from both ends of said middle part (25A), turnover parts (25C) in continuity with ends of said first arms (25B), second arms (25D) in continuity with ends of said turnover parts (25C), contact points (25E) in continuity with said second arms (25D), and a tab (25F) extending from said middle part (25A), an end of said tab (25F) being in contact resiliently with said common contact (22), and said contact points (25E) being in contact resiliently with said second inner wall and said third inner wall in a slidable manner;
- and
- a lever (28) having a downwardly extending cylindrical actuating part (28C) and disposed to said first inner wall in a rotatable manner, right and left sides of said actuating part (28C) abutting against respective ones of said first arms 25B of said movable contact (25) and an upper part of said lever (28) projecting through said opening in said case (21),
- wherein one of said contact points (25E) makes resilient contact with respective one of said at least one stationary contact (13, 14) in concert with a turning movement of said lever (28).
Dependencies are inferred from the claim text.