US 9,218,924 B2 · Isolator switch assembly

Abstract

An isolator switch assembly, especially an isolator switch and key assembly for a powered apparatus, such as a lawncare product, for example a lawnmower, includes a key, a keyway and an electrical switch positioned adjacent the keyway. The assembly is arranged to provide a first configuration in which the key is insertable into and removable from the keyway and the switch is open and a second configuration in which the key bears against an actuator surface of the switch to close the switch. In one embodiment, the assembly is arranged to provide a third configuration in which the switch is not actuated and the key is not removable from the keyway and is biased into a predetermined rotational position intermediate the first and second configurations. In a further embodiment, the assembly is provided with an over-torque or over-rotation prevention mechanism.

Claims19

Dependent claims

An isolator switch assembly for an electrical apparatus, the assembly comprising:

a key;
a keyway;
and
a rocker-type electrical switch positioned adjacent the keyway and including a rocker biased into an open position and an actuator surface,
wherein the assembly is configured with (i) a first configuration in which the switch is in the open position, the key is in a first predetermined rotational position with respect to the keyway, and the key is configured to be inserted into and removed from the keyway, and (ii) a second configuration in which the key is in a second predetermined rotational position at which the key bears directly against the actuator surface of the switch so as to position the switch in a closed position.

2 more elements

Dependencies are inferred from the claim text.

Isolator switch assembly

Life of this patent

Isolator switch assembly

Life of this patent

Abstract

Claims19