Retractable pull handle for luggage

Abstract

A retractable pull handle for a luggage includes an outer pipe, an inner pipe, a fixing seat, a positioning block, a first elastic member, two locking blocks, two second elastic members, and a push member. Thus, the locking posts of the locking blocks are locked in the lower locking holes of the outer pipe, and the positioning post of the positioning block is locked in the positioning hole of the outer pipe to provide a double locking effect, so that the inner pipe is locked in the outer pipe exactly and stably to prevent the inner pipe from detaching from the outer pipe, thereby facilitating packaging, transportation and storage of the luggage.

1 . A retractable pull handle, comprising:
 an outer pipe having an upper end formed with two upper locking holes and a lower end formed with two lower locking holes and a positioning hole located beneath the lower locking holes;   an inner pipe movably mounted and detachably locked in the outer pipe;   a fixing seat secured in the inner pipe to move therewith;   a positioning block movably mounted in the fixing seat and having a first side provided with a protruding positioning post extended through the fixing seat and the inner pipe and detachably locked in the positioning hole of the outer pipe;   a first elastic member biased between the fixing seat and a second side of the positioning block to push the positioning post of the positioning block toward the positioning hole of the outer pipe;   a push member movably mounted in the fixing seat and rested on the positioning block and the locking blocks to push the positioning post of the positioning block to detach from the positioning hole of the outer pipe.   
   
   
       2 . The retractable pull handle in accordance with  claim 1 , further comprising:
 two locking blocks each movably mounted in the fixing seat and each having a first side provided with a protruding locking post extended through the fixing seat and the inner pipe and detachably locked in a respective upper locking hole or a respective lower locking hole of the outer pipe;   two second elastic members biased between the fixing seat and a second side of a respective locking block to push the locking post of the respective locking block toward the respective upper locking hole or the respective lower locking hole of the outer pipe.   
   
   
       3 . The retractable pull handle in accordance with  claim 2 , wherein the push member pushes the locking post of each of the locking blocks to detach from the respective upper locking hole or the respective lower locking hole of the outer pipe. 
   
   
       4 . The retractable pull handle in accordance with  claim 2 , wherein the fixing seat has a face formed with two through holes to allow passage of the locking posts of the locking blocks. 
   
   
       5 . The retractable pull handle in accordance with  claim 2 , wherein the fixing seat has an inside provided with two slideways in each of which a respective locking block is slidable. 
   
   
       6 . The retractable pull handle in accordance with  claim 1 , wherein the fixing seat has a face formed with a through bore to allow passage of the positioning post of the positioning block. 
   
   
       7 . The retractable pull handle in accordance with  claim 1 , wherein the fixing seat has an inside provided with a guide track in which the positioning block is slidable. 
   
   
       8 . The retractable pull handle in accordance with  claim 7 , wherein the guide track of the fixing seat has a bottom formed with a first limit hole and a second limit hole, and the positioning block has a bottom formed with a receiving chamber for mounting a limit post that is detachably locked in the first limit hole or the second limit hole of the guide track, and a push spring that is biased between the positioning block and the limit post to push the limit post toward the first limit hole or the second limit hole of the guide track. 
   
   
       9 . The retractable pull handle in accordance with  claim 8 , wherein the positioning block is provided with two outwardly extending driven posts each protruding outwardly from the guide track of the fixing seat, and the push member is movably mounted in the inside of the fixing seat and has a mediate portion provided with two push blocks each slidable on the guide track of the fixing seat and each having a tapered push face rested on a respective driven post of the positioning block to push the positioning block inwardly to detach the positioning post of the positioning block from the positioning hole of the outer pipe and to move the limit post from the first limit hole into the second limit hole of the guide track. 
   
   
       10 . The retractable pull handle in accordance with  claim 5 , wherein the push member has two opposite sides each provided with a movable seat which has an inside formed with a displacement space to allow displacement of a respective locking block. 
   
   
       11 . The retractable pull handle in accordance with  claim 10 , wherein each of the locking blocks is provided with two outwardly extending driven shafts each protruding outwardly from the respective slideway of the fixing seat, and the movable seat of the push member has a top provided with two tapered push faces each rested on a respective driven shaft of the respective locking block to push the respective locking block inwardly to detach the locking post of each of the locking blocks from the respective upper locking hole or the respective lower locking hole of the outer pipe. 
   
   
       12 . The retractable pull handle in accordance with  claim 1 , further comprising two restoring springs each mounted in the fixing seat and each biased between a bottom wall of the fixing seat and a bottom wall of the push member to push the push member upward. 
   
   
       13 . The retractable pull handle in accordance with  claim 8 , further comprising a mounting seat mounted on the lower end of the outer pipe and having a top provided with a push pin that is inserted into the second limit hole of the guide track when the fixing seat is movable downward toward the mounting seat to push and detach the limit post of the positioning block from the second limit hole of the guide track. 
   
   
       14 . The retractable pull handle in accordance with  claim 13 , further comprising two compression springs each biased between the top of the mounting seat and the bottom wall of the fixing seat to push the fixing seat upward. 
   
   
       15 . The retractable pull handle in accordance with  claim 14 , wherein the top of the mounting seat is formed with two locking slots, and each of the compression springs has a distal end inserted into and locked in a respective locking slot of the mounting seat. 
   
   
       16 . The retractable pull handle in accordance with  claim 1 , wherein the fixing seat has an inside provided with two guide slots, and the push member is provided with two driven bars each movably mounted in a respective guide slot of the fixing seat and each having a distal end protruding from the fixing seat. 
   
   
       17 . The retractable pull handle in accordance with  claim 16 , further comprising:
 a grip portion mounted on an upper end of the inner pipe to move the inner pipe;   a link movably mounted in the inner pipe and having a first end provided with a push button movably mounted on the grip portion and a second end provided with a press block rested on the driven bars of the push member to push the push member downward.   
   
   
       18 . The retractable pull handle in accordance with  claim 1 , wherein the fixing seat includes a housing and a side cover attached to an open side wall of the housing to cover the push member. 
   
   
       19 . The retractable pull handle in accordance with  claim 18 , wherein the inner pipe has a lower end formed with two through holes, the side cover of the fixing seat has two screw bores, and the retractable pull handle further comprises two locking screws each extended through a respective through hole of the inner pipe and screwed into a respective screw bore of the side cover to secure the fixing seat to the inner pipe. 
   
   
       20 . The retractable pull handle in accordance with  claim 1 , wherein the second side of each of the locking blocks is formed with a mounting chamber for mounting the respective second elastic member.