US 5,854,580 AGranted

Breaker device

AssigneeSumitomo Wiring Systems, Ltd.

InventorsKazumoto Konda, Kunihiko Watanabe, Toshiyuki Sekimori, Yasuyoshi Fukao

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Abstract

A breaker device excellent in safety and contained in a compact casing. In a casing 1, a pair of fixed electrodes 11a, 11b is projected, and a movable electrode 31, which is fitted with and detached from the fixed electrodes, is arranged. A handle 40 is inclinably supported by a supporting shaft 45. On the top surface of an upper casing 3, a pair of poles 70 is erected, and rectangular solid sliding projections 71 are projected, while guiding grooves 73 are formed in side faces of the handle 40. In each of the guiding grooves 73, an arc-shaped portion allowing the sliding projection 71 to rotate about the supporting shaft 45 is provided at an upper end of a linear portion which allows the sliding projection 71 only to slide therealong. When the movable electrode 31 is inserted with the handle being erected, the sliding projections are guided by the linear portions, while the handle 40, maintained in an erected state, is inserted. When both the electrodes are normally fitted, the sliding projections 71 reach the arc-shaped portions and relatively introduce thereinto, whereby the handle 40 can be inclined.

Claims9

Dependent claims

A breaker device comprising:

a casing;
a pair of fixed electrodes extending substantially parallel to one another in the casing;
a movable electrode selectively insertable into the casing, said movable electrode being fittable with and detachable from both of said fixed electrodes for selectively disconnecting and connecting said fixed electrodes;
a handle inclinably arranged on said movable electrode said handle being disposed to enable selective movement of said movable electrode toward and away from said casing for selectively disconnecting and connecting said movable electrode with said fixed electrode;
projections disposed on said casing in proximity to said fixed electrodes;
and
said handle including guiding grooves engageable with said projections for guiding said handle and said movable electrode relative to said fixed electrodes and said casing, each of said guiding grooves includes an inclination preventing portion configured for preventing inclination of said handle relative to said movable electrode prior to complete fitting of said movable electrode with said fixed electrodes and an inclination allowing portion configured for allowing a relative displacement between said projections and said grooves to allow said handle to incline when fitting of the movable electrode with the fixed electrodes is completed.

4 more elements

Dependencies are inferred from the claim text.