Patent ID: 7266863
Filing Date: 2007-09-11
Classification: A45C,Y10T

Abstract:
1. A retractable handle assembly, comprising: an outer pipe having a plurality of locking holes and having a bottom end formed with at least one positoning hole; an intermediate pipe movably mounted in the outer pipe and having a plurality of locking holes; an inner pipe movably mounted in the intermediate pipe; a control handle movably mounted on the inner pipe and having at least one link extended into the inner; wherein each of the inner pipe and the intermediate pipe has a bottom end provided with a support seat and a locking device; the support seat includes a housing, and an end cap secured on the housing; the housing of the support seat has an inside formed with at least one limit recess and has a surface formed with at least one through hole; the end cap of the support seat has a surface formed with at least one through hole aligning with the through hole of the housing; the locking device is mounted on the support seat and includes at least one press member, at least one locking pin, and at least one positioning pin; the press member of the locking device is movably mounted in the limit recess of the of the housing and has an inside formed with a receiving chamber having an end provided with a tapered push block and two sides each formed with a tapered push slot; the press member of the locking device proviede on the inner pipe has a top end provided with an enlarged press buttom protruded outward from the housing of the support seat and connected to the link of the control handel; the locking pin of the locking device is retracably mounted in the through hole of the housing and has a first end provided with two outwardly protruding urging post each rested on the respective tapered push slot of the press member and a second end protruded outward from the through hole of the housing; the locking pin the locking device has an inside formed with a mounting recess; the positioning pin of the locking device is retractably mounted in the through hole of the end cap and has a first end formed with a tapered slide slot mounted on the tapered push block of the press member and a second end formed with a positioning stub retractably protruded outward from the through hole of the end cap; the second end of the positioning pin is provided with a limit rod extended into the mounting recess of the locking pin; the locking device further includes at least one elastic member mounted on the limit rod and biased between the positioning pin and the locking run to push the locking pin and the positioning pin outward relative to each other; the locking device further includes at least one restoring spring mounted in the limit recess of the housing and biased between a bottom end of the press member and the housing of the support seat to push the press member upward relative to the housing of the support seat.