US 5,847,338 AGranted

Breaker device

AssigneeSumitomo Wiring Systems, Ltd.

InventorsHeiji Kuki, Kazumoto Konda, Tsutomu Tanaka, Kunihiko Watanabe

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Abstract

A slidable element is provided for easy positioning in a guide slot when a handle is withdrawn. A handle 40 is inclinably provided on a mount body 35 bearing a movable electrode 31 by a support shaft 45. The support shaft 45 is loosely movable with respect to the mount body 35 by being fixed to the handle 40 and being inserted through oblong holes 42 formed in bearing portions 41 of the mount body 35. In order to withdraw the handle 40, it is necessary to position slidable projections 70 at the bottom ends of linear portions 75 of guide slots 74 while the handle 40 is pulled up. Since the support shaft 45 is movable upward within the oblong holes 42, the handle 40 can singly be pulled up while the movable electrode 31 is still engaged with the fixed electrodes 11a, 11b. During this time, the slidable projections 70 can be positioned and passed through the linear portions 75 of the guide slots 74 with a small force.

Claims17

Dependent claims

A breaker device comprising:

a pair of substantially parallel fixed electrodes provided in a casing,
a movable electrode having a pair of substantially parallel terminal portions, said terminal portions being dimensioned and disposed for substantially simultaneous connection with the fixed electrodes by moving the movable electrode toward the casing and parallel to said fixed electrodes, said terminal portions further being substantially simultaneously disconnectable from said fixed electrodes by moving said movable electrode away from said casing in a direction substantially parallel to the fixed electrodes, and
a handle for selectively moving the terminal portions of the movable electrode into and out of engagement with the fixed electrodes,
wherein the handle is mounted to the movable electrode for rotation about an axis orthogonal to said terminal portions of said movable electrode and for linear translation relative to said movable electrode along directions parallel to the terminal portions of the movable electrode wherein the translation of said handle relative to said movable electrode produces inertial forces for overcoming disengagement resistance between said movable electrode and said fixed electrodes.

1 more element

A breaker device comprising:

a casing;
a pair of substantially parallel fixed electrodes provided in the casing;
a movable electrode having a pair of substantially parallel terminal portions, said terminal portions being dimensioned and disposed for substantially simultaneous connection with the fixed electrodes by moving the movable electrode toward the casing and parallel to said fixed electrodes, said terminal portions further being substantially simultaneously disconnectable from said fixed electrodes by moving said movable electrode away from said casing in a direction substantially parallel to the fixed electrodes;
a handle mounted to the movable electrode for rotation about an axis orthogonal to the terminal portions of said movable electrode and for translation relative to the movable electrode in directions parallel to the terminal portions;
at least one slidable element formed on a selected one of the handle and the casing and a guide slot defined on the other of the handle and the casing, the guide slot being configured and aligned for permitting a relative sliding movement of the slidable element into the guide slot for guiding the terminal portions of the movable electrode substantially parallel to the fixed electrodes.

2 more elements

Dependencies are inferred from the claim text.