US 5,108,216 AGranted

Cam locking system

AssigneeSociete Anonyme dite: Aerospatiale Societe Nationale Industrielle

InventorsFreddy Geyer, Jean-Pierre Scheffter, Gerard Vezain

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Abstract

A locking system is disclosed comprising two elements connected mechanically together so as not to be able to move apart, as well as a cam mounted for rotation on the first of said elements and having a contact surface pressing against a bearing face carried by the second of said elements. According to the invention, said contact surface of said cam has at least approximately a profile in the form of a logarithmic spiral, whereas said bearing face is flat and said cam may rotate about a hub on the axis of which is located the origin of said logarithmic spiral, said hub being mounted for rotation on said first element about an off-centered axis of rotation opposite said contact surface of said cam. Resilient means are provided for rotating said cam in a first direction such that said contact surface moves towards said bearing face.

Claims10

Dependent claims

Locking system comprising:

first and second mechanically-interconnected elements;
a cam mounted for rotation on the first of said elements and having a contact surface adapted to press against a flat bearing face on the second of said elements;
said contact surface of said cam having a profile substantially in the shape of a logarithmic spiral having an origin;
said cam being rotatable about a hub having an axis on which is located the origin of said logarithmic spiral, said hub being mounted on said first element for rotation about an axis which is off-center with respect to the axis of said hub;
resilient means biasing said cam for rotation in a first direction causing said contact surface to move towards said bearing face;
a stud mounted on said hub for rotating said cam in a second direction opposite said first direction, said resilient means permitting rotation of said cam in said first direction;
and
means for rotating said hub about said off-centered axis of rotation in said second direction.

5 more elements

Dependencies are inferred from the claim text.