Lever arrangement for transmitting limited tilting motions
AssigneeSiemens Aktiengesellschaft
InventorLudvik Godesa
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Abstract
A lever arrangement comprises a bearing pin and a supply space arranged next to the bearing opening of at least one of the levers and which contains a high-viscosity lubricant. In the operation of the lever arrangement with alternating tilting direction, the lubricant arrives, due to its inertia, in the respectively unstressed part of the bearing gap between the levers. The arrangement is suited particularly for highly stressed parts in the mechanism of circuit breakers which must be designed for space saving due to the small space available. The service life of such lever arrangements is increased substantially by arranging the lubricant in the supply space. The supply space can be part of a sleeve braced on the bearing pin.
Claims7
An articulated lever arrangement for transmitting limited tilting motions with alternating direction, comprising at least one pivot pin and a lever provided with a bearing opening for the pivot pin, a supply space being provided laterally next to the bearing opening for receiving a high-viscosity lubricant which is in connection with a bearing gap between the lever and the pivot pin, the supply space comprising a sleeve which surrounds the pivot pin and is adjacent to the lever, the sleeve having a bore hole, a part of the bore hole being adapted to the diameter of the pivot pin and a part being enlarged relative thereto, for receiving the lubricant.
Dependencies are inferred from the claim text.