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US 11,180,893 B2Granted
Rail fastening device
AssigneeGantry Railing Ltd.
InventorStephen David Engert
Life of this patent
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AssigneeGantry Railing Ltd.
InventorStephen David Engert
Estimating the term…
A rail fastening device comprises a clip (10) having a base (11) and a nose (12) for engaging a rail flange (F). The base (11) comprises circular aperture (14) in which a circular cam (13) is rotatably mounted, the cam (13) being provided with an eccentric aperture (24) for receiving a ground anchor (25), the cam aperture (24) being radially offset from the rotational centre of the cam (13) to define a cam lobe (15). The cam (13) may comprise a ramped circumferential shoulder (18) to engage a complementary shoulder (21) inside the base aperture (14) such that any rotation of the cam (13) under the applied load of the rail causes the cam (13) to move axially of the base aperture (14) thereby tightening the engagement of the anchor (25) on the cam (13) and preventing movement of the clip (10). The degree of rotation of the cam (13) may be limited so that it can only turn in the tightening direction under load.
A rail fastening device comprising a clip having a base and a nose for engaging a rail, the base comprising a circular aperture in which a circular cam is rotatably mounted, the cam being provided with an eccentric aperture for receiving a ground anchor, the cam aperture being radially offset from the rotational centre of the cam to define a cam lobe, wherein the cam is seated in the base aperture, in such a way that the cam cooperates with the base aperture to cause the cam to move axially of the base aperture as the cam is rotated.
Dependencies are inferred from the claim text.