Coupling with direct transmission of the rotational movement of an actuation bolt to a clamping jaw driven in translation by the latter

In combination with a loading arm for transferring a fluid product from a first component to a second component, the improvement comprising a coupling for securing the first component to the second component, the coupling comprising:

• an actuation bolt which comprises a longitudinal axis;
• a clamping jaw which is mounted on the first component and which comprises a bore having a first part which defines a nut that threadedly engages the actuation bolt and a second part within which the actuation bolt extends;
• and
• torque limitation means positioned between the actuation bolt and the second part of the bore for transmitting the rotational movement of the actuation bolt directly to the clamping jaw to thereby rotate the clamping jaw about the axis;
• wherein when an external force acting on the clamping jaw is greater that the force generated against the bore by the torque limitation means, rotation of the actuation bolt will result in translation of the clamping jaw along the axis;
• and
• wherein when the external force acting on the clamping jaw is less than the force generated against the bore by the torque limitation means, rotation of the actuation bolt will rotate the clamping jaw about the axis.