Contact structure of a sliding switch
AssigneeNiles Parts Co., Ltd.
InventorsKazue Ohtaki, Mineo Hirano
Life of this patent
Estimating the term…
Abstract
In order to prevent resin around fixed contacts from being carbonized by an arc produced when a movable contact plate is brought into contact with the fixed contacts and separated therefrom, a sliding switch comprises a terminal plate provided with two fixed contact plates and a movable plate provided with a movable contact plate, which is brought into contact with the fixed contact plates. Each of the fixed contact plates has a fixed contact protruding from the terminal plate. The movable contact plate includes at least a pair of protrusions on both sides thereof.
Claims6
A contact structure of a sliding switch comprising:
- a terminal plate provided with fixed contact plates;
- and
- a moveable plate provided with a movable contact plate, which is selectively brought into contact with said fixed contact plates,
- wherein each of said fixed contact plates has a fixed contact, producing above an upper surface of the terminal plate, and
- said movable contact plate is formed approximately in a U shape with an upstanding front wall and an upstanding rear wall, and two pairs of downwardly extending protrusions are formed on each of two sides of a bottom surface of the movable contact plate at a front extremity portion and a rear extremity portion thereof, respectively, to form a lowermost portion of the movable contact plate.
A contact structure of a sliding switch, comprising:
- a terminal plate provided with fixed contact plates;
- and
- a movable plate provided with a movable contact plate, which is selectively brought into contact with said fixed contact plates;
- wherein each of said fixed contact plates has a fixed contact protruding above a surface of the terminal plate, and
- at least a pair of protrusions are formed on two sides of said movable contact plate;
- wherein a relation L4>L2 exists, where L4 is a distance between each pair of said protrusions, and L2 is a transversal width of said fixed contact plates;
- wherein a relation H1>H2 exists, where H1 is a height protruding upward of said fixed contacts, and H2 is a height of protrusions protruding downward from said bottom surface of said movable contact plate;
- wherein an air gap is formed between said fixed contact plates in said terminal plate;
- wherein a protruding portion, which said protrusions of said movable contact plate can surmount, is formed on said surface of said terminal plate on both sides of said air gap;
- and
- wherein said protruding portion is disposed in a transversal direction and has an approximately semicylindrical shapes, and a relation H1>H3 exists, where H3 is a height of said protruding portion, and H1 is the height of said fixed contacts.
Dependencies are inferred from the claim text.