Patent ID: 8123258

Claim:
A female coupling element of a quick connect coupling for detachably joining two conduits of a pipeline for conveying fluid under pressure, the female coupling element comprising: a body having a channel that extends there through for cooperatively receiving a male element inserted therein along a longitudinal axis of insertion of the female element; at least one elongate locking member movable in translation between an inner locking position and an outer release position within an open housing in the body which communicates with the channel and is oriented at an oblique angle with respect to the channel so as to define an axis of translation of the at least one elongate locking member, the axis of translation of the at least one elongate locking member thereby being parallel to an axis oblique with respect to the longitudinal axis of insertion; the at least one locking member having a first end which is engaged in a peripheral groove of a male element when the male element is inserted in the female element and the at least one locking member is in the inner locking position and an opposite head which protrudes radially with respect to an outer radial surface of the body of the female element; the head of the at least one locking member being positioned between a first and a second component which are encircled and controlled by a main ring which is mounted about the body so as to be movable in translation parallel to the longitudinal axis of insertion; the head of the at least one locking member being provided with two lugs each defining a first surface oriented towards the first end and engaging, in sliding contact along a sliding plane, a corresponding surface of the first component; the sliding plane between the first surface and the corresponding surface of the first component being inclined at an angle of between approximately 75° and 105° with respect to the axis of translation of the member; and wherein the two lugs of the head of the at least one locking member extend outwardly from a stem, which stem is slidably engaged with respect to the first component.