Frictional engagement device
AssigneeGadloc AB
InventorsGustaf Gadelius, Monica Gadelius
Life of this patent
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Abstract
A device for frictional inter-engagement between two mutually movable parts (13, 14). A lever mechanism exerts counter-directed pressing forces towards both parts to transfers movement between them. A lever (25) has a free lever end (27) contacted by a first (13) of the parts, and opposite to the free end a part-cylindrical convex surface (31) journalled in a part-cylindrical concave bearing surface (33). In order to eliminate the risk of jamming of the lever due to excessive surface pressure, it is journalled with rolling bodies, preferably cylindrical bodies (34).
Claims9
A frictional engagement device for frictional inter-engagement between two mutually movable parts (13,14), constituted by a lever mechanism operable by a first (13) of the parts so as to exert counter-directed pressing forces towards portions of both parts, the lever mechanism including a lever (25) having a free lever end (27) and opposite thereto a part-cylindrical convex surface (31) journalled in a corresponding part-cylindrical concave bearing surface (33) of a block-shaped pressure member (32) slidable along a surface (36b) of a second (14) of the parts, the lever (25) being reciprocatingly rotatable about an axis(C2) common to the part-cylindrical surfaces (31,33) and having a contact portion (37) eccentric in relation to said axis (C2), the contact portion (37) contacting a portion(30′) of the second part (14) upon actuation of the lever, characterized in that the part-cylindrical convex surface (31) is journalled in the corresponding part- cylindrical concave bearing surface (33) by means of rolling bodies (34).
Dependencies are inferred from the claim text.