Delay switch
AssigneeMatsushita Electric Works, Ltd.
InventorsHideo Kuwabara, Takao Ohta
Life of this patent
Estimating the term…
Abstract
A delay switch comprising a delay element provided in the center of a body to produce a delayed output, a delay cam unit provided on one side of the delay element to start its actuation always from an identical position in response to the delayed output, and switching contact members electrically connected to terminals on other opposing sides of the delay element through the delay cam unit, realizing thus concurrently a constant delay time and a compact assembly.
Claims8
A delay switch comprising a body, a cover member integrally mounted onto said body and having a top opening, a delay element disposed substantially in the center of the body and providing an output drive, a delay cam unit provided on one side of said delay element and operatively linked to said output drive for performing a delay operation in response to being driven by said output drive, switching contact members including a movable contactor linked to said delay cam unit to be actuated after a predetermined delay time, terminal plate members provided on opposing sides of the delay element and electrically connected to said contact members and to connecting wires inserted through connecting holes of the body, and contact actuating means positioned above the delay element within said cover member and including a rockable actuating handle disposed in said opening of the cover member for actuating the contact members and delay cam unit.
A delay switch comprising a body;
- a delay element disposed within said body and including a rotary output shaft;
- delay cam means arranged to be driven from a start position to a final position by said delay element, said delay cam means including a first pivotably mounted cam operably connected to said output shaft to be rotated thereby, and a second pivotably mounted cam operably connected to said first cam to be driven by a lost motion connection therebetween whereby said second cam remains stationary during a predetermined amount of rotation of said first cam and is thereafter rotated to said final position by said first cam;
- electrical contact means for connection to an external electrical component to be operated, said contact means arranged to be actuated by said second cam when said delay cam means is in said start position to operate said external component and deactuated when said delay cam means is in said final position;
- and a manual handle movable to a first position for setting said delay cam means in said start position and movable to a second position for actuating said delay element.
Dependencies are inferred from the claim text.