Ignition switch with starter lockout
AssigneeJoseph Pollak Corporation
InventorLeo F. Roytberg
Life of this patent
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Abstract
An ignition switch having a starter lockout to prevent attempted restarting of a running engine. The starter lockout includes a slide-mounted orthogonally movable plunger which engages a depression formed in the switch housing upon completion of a movement of the switch rotor to the "START" position and its return to the "ON" position. Repeated movement of the switch rotor directly from the "ON" position to the "START" position is prevented by the engagement of the plunger by the depression in the housing. Disengagement of the plunger from the depression when the rotor is turned in a reverse direction from the "ON" position to the "OFF" position is made possible by a sloped camming surface on either the plunger or the depression which cooperate to urge the plunger back to a normally retracted position.
Claims6
In a rotary switch having a stationary element and a rotary element, said rotary element being rotatable relative to said stationary element from one position to another to selectively energize circuits in a predetermined sequence, apparatus for preventing repeated energization of one of said circuits by movement in a first direction of said rotary element from a given position directly to a position adjacent thereto comprising a third element in frictional contact and normally rotatable with said rotary element, stops being provided on said stationary element to limit rotation of said third element with said rotary element, a fourth element rotatable with said rotary element and movable along said third element upon said third element engaging one of said stops on said stationary element and means disposed on said stationary element for engaging said fourth element, said third element having a portion thereof relieved to permit orthogonal movement of said fourth element relative thereto, said orthogonal movement resulting in engagement of said fourth element by said means disposed on said stationary element, the position of one of said stops and the position of said relieved portion of said third element being such that said fourth element is aligned with the relieved portion after the rotary element has been rotated beyond said given position in said first direction.
Dependencies are inferred from the claim text.