Patent ID: 7774901

Claim:
A retractable handle assembly, comprising: an outer pipe; an inner pipe movably mounted in the outer pipe and having a face provided with two positioning holes; an outer mounting sleeve mounted on a first end of the outer pipe; a control seat movably mounted on the outer mounting sleeve and having an inside provided with a receiving space and two opposite side walls each provided with an oblique guide slot; a positioning post movably mounted in the receiving space of the control seat and having a first end extending through the outer mounting sleeve and the outer pipe and detachably inserted into one of the two positioning holes of the inner pipe; a movable pin slidably mounted in the guide slots of the two opposite side walls of the control seat and extending through the positioning post to move the positioning post relative to the inner pipe by movement of the control seat relative to the outer mounting sleeve; a control knob movably mounted on a second end of the outer pipe; a link received in the outer pipe and connected between the control knob and the control seat to move the control seat relative to the outer mounting sleeve; wherein the outer mounting sleeve has a peripheral wall provided with a protruding mounting seat for mounting the control seat; a lid mounted on the mounting seat of the outer mounting sleeve; a first spring biased between the mounting seat of the outer mounting sleeve and the control seat to push the control seat toward the first end of the outer pipe, to move the movable pin downward in the guide slots of the two opposite side walls of the control seat and to move the positioning post toward the inner pipe; and a second spring biased between the lid and the positioning post to push the positioning post toward the inner pipe.