Quick connector

A quick connector comprising:

• a tubular-shaped first member including a first tube having a predetermined outer diameter and a ring-shaped projection disposed on an outer peripheral surface of said first tube;
• a tubular-shaped second member including a socket at an end thereof and a second tube having a cylindrical shape, said socket including a cylinder-shaped receiver hole having an opening for passage of a first end of said first tube of said first member therein, and a first regulatory inner peripheral surface having an inner diameter decreasing in size toward said opening, said second tube including a second regulatory inner peripheral surface having substantially the same inner diameter as the outer diameter of an end of said first tube of said first member for engaging said end of said first tube disposed through said opening;
• an engager claw member disposed in said cylinder-shaped receiver hole, and having a length shorter than a length of said cylinder-shaped receiver hole in a direction parallel to a central axis of said socket, said engager claw member interposed between an inner peripheral surface of said socket and an outer peripheral surface of said first tube and movable in a direction parallel to said central axis of said socket, said engager claw member including a ring-shaped base, a plurality of arms extending from said ring-shaped base to said opening in a direction parallel to said central axis of said socket, said arms being deformable in a radial direction, and a claw extending from an end of each of said arms and engaging with said ring-shaped projection of said first member when said first member is moved into said socket thereby expanding said arms so that said ring shaped projection will move past each said claw;
• an urging member disposed in said cylinder-shaped receiver hole, urging said engager claw member to said opening of said socket in a direction parallel to said central axis of said socket to push said claw of said engaging claw member between said first regulatory inner peripheral surface of said socket and said outer peripheral surface of said first tube of said first member for urging each said claw radially inwardly thereby enhancing the engagement between said socket and said first tube;
• and
• a disengaging member including a tube having a through hole inserted around said first member and a tapered surface formed at a forward end thereof, said tapered surface pressing said claws of said engaging claw member outwardly in a radial direction.