Switch
AssigneeOMRON Corporation
InventorsHiroyuki Fujita, Kenji Kuroki
Life of this patent
Estimating the term…
Abstract
A switch includes a housing, a common stationary contact terminal, an individual stationary contact terminal, and a plunger including a moving contact unit. The moving contact unit includes a body, a first arm, a second arm, and a third arm extending from the body in a direction intersecting with a parallel direction in which the common stationary contact terminal and the individual stationary contact terminal are arranged parallel to each other, electrically interconnected with each other, and are spaced apart from one another in the parallel direction, a first moving contact included in the first arm, a second moving contact included in the second arm, and a third moving contact included in the third arm.
Claims12
A switch, comprising:
- a housing comprising an internal compartment;
- a common stationary contact terminal extending from outside the housing to the compartment and fixed to the housing, the common stationary contact terminal comprising a common stationary contact arranged in the compartment;
- an individual stationary contact terminal extending from outside the housing to the compartment and arranged parallel to the common stationary contact terminal, the individual stationary contact terminal comprising a first individual stationary contact and a second individual stationary contact that are fixed to the housing and arranged in the compartment, the first individual stationary contact and the second individual stationary contact being electrically independent of the common stationary contact terminal;
- and
- a plunger supported by the housing in a manner movable in a parallel direction in which the common stationary contact terminal and the individual stationary contact terminal are arranged parallel to each other, the plunger comprising a moving contact unit arranged in the compartment so as to come in contact with, at one time, the common stationary contact, the first individual stationary contact, and the second individual stationary contact as the plunger moves in the parallel direction, the moving contact unit comprising:
- a body extending in the parallel direction;
- a first arm, a second arm, and a third arm extending from the body in a direction intersecting with the parallel direction, the first arm, the second arm, and the third arm being electrically interconnected and spaced from one another in the parallel direction;
- a first moving contact included in the first arm, the first moving contact configured to come into contact with the common stationary contact;
- a second moving contact included in the second arm, the second moving contact configured to come into contact with the first individual stationary contact;
- and
- a third moving contact included in the third arm, the third moving contact configured to come into contact with the second individual stationary contact, wherein
- the common stationary contact terminal, the individual stationary contact terminal, and the moving contact unit cause the second moving contact to separate from the first individual stationary contact and then the third moving contact to separate from the second individual stationary contact in response to the plunger moving in the parallel direction while the first moving contact is in contact with the common stationary contact, the second moving contact is in contact with the first individual stationary contact, and the third moving contact is in contact with the second individual stationary contact.
Dependencies are inferred from the claim text.