Patent ID: 7328922

Claim:
A quick connector comprising: a cylindrical connector housing having a tube connecting portion at one axial end and a pipe retainer portion at the other axial end, the pipe retainer portion having a retainer adapted to be snap engaged with an annular engagement projection provided on an insert end portion of a pipe to be inserted into the connector housing; and an annular seal member axially fined and held in an annular recess formed in an inner circumferential surface of the connector housing when the tube connecting portion and the pipe retainer portion are engaged, so as to seal an outer circumferential side of the insert end portion of the pipe; wherein the retainer is integrally formed with the pipe retainer portion and has an engagement portion projecting toward the interior of the pipe retainer portion which is adapted to engage the annular engagement projection, and a disengagement operating portion extending tangentially relative to the circumference of the cylindrical connector housing in a plane perpendicular to the axis of the connector housing and adapted to deform so as to move the engagement portion radially outwardly and disengage the engagement portion and annular engagement projection from each other; wherein the retainer comprises a pair of retainers arranged at diametrically symmetric positions in the pipe retainer portion, each retainer having the engagement portion and the disengagement operating portion, and each engagement portion is moved radially outwardly when a distance between the disengagement operating portions of the pair of retainers is reduced in a plane perpendicular to the axis of the connector housing.