Drive for an oscillatory mechanical system
AssigneeSulzer Brothers Limited
InventorAnton Steiger
Life of this patent
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Abstract
A resiliently prestressed oscillatory system having two discrete operative positions is located by means of toggle levers in the limit positions of the oscillation. One of the toggle levers is in the extended state in the associated operative position and is deflected by a control device through the agency of a movable abutment until the self-locking of the toggle lever is overcome and a prestressed spring drives the system into its other end position. The toggle levers form an amplifier reducing, for instance, by a hundred-fold to a thousand-fold, the forces which the control device is required to provide. The system can therefore be controlled directly by means of an electronic control without the need for additional pneumatic of hydraulic auxiliary systems or high power electrical systems.
Claims8
In combination
- an oscillatory mechanical system having a first means for oscillating between two discrete operative positions and a resilient prestressing means for biasing said first means from one position to the other position;
- and
- a drive for actuating said system, said drive including a pair of toggle levers connected to said first means, each said toggle lever being disposed to locate said first means in a respective operative position corresponding to an extended self-locking position of said respective toggle lever, a pair of movable abutments, each said abutment being disposed in the path of a respective toggle lever to inhibit overshooting of said respective toggle lever past said extended position thereof, and a control mechanism for selectively moving said abutments to effect a deflection of a respective toggle lever from an extended self-locking position thereof.
Dependencies are inferred from the claim text.