Retractable luggage handle with a handle grip extended from top connecting portion of two pulling rods

Abstract

Provided is a retractable luggage handle system having a T-shaped or hollow rectangular handle grip extended from a top connecting portion of pulling rods. In one embodiment, pressing the push button will activate a spring-based transmission mechanism to push down a rod and an n-shaped pressing member to cause recesses of two levers engaged with legs of the pressing member to pivot clockwise to pull up one ends of connecting rods for unlocking locking devices. In another embodiment, pressing the push button will push down an n-shaped control member to contact and push down one ends of the connecting rods for unlocking the locking devices. The invention enables handle rods to extend or retract by one single touch manipulating the handle grip by a single hand.

1 . A retractable handle system of a luggage case, comprising: 
 two parallel pulling rods each comprising a support tube and one or more sliding tubes each slidable in either the support tube or a lower one of the sliding tubes;    a handle grip comprising a top push button, a hollow cylinder extended from its bottom to interconnect the handle grip and a top connecting portion of the pulling rods, a spring-based transmission mechanism having one end connected to the push button, and a rod passed through the cylinder and having an upper end slidably connected to the other end of the transmission mechanism;    a control mechanism within the connecting portion and comprising a spring-depressible, n-shaped pressing member engaged with bottom of the rod in a nonoperating position, and two levers each including a recess at one end with a leg; and    two connecting rods each having one end fastened at the other end of the lever and the other end coupled to a locking device,    whereby pressing the push button will activate the transmission mechanism to push down the rod and the pressing member to cause the recesses to pivot clockwise to pull up one ends of the connecting rods for unlocking the locking devices and enabling the handle rods to extend or retract thereafter.    
   
   
       2 . The retractable handle system of  claim 1 , wherein the handle grip is a hollow rectangular member.  
   
   
       3 . The retractable handle system of  claim 1 , wherein the downward moved pressing member is adapted to clear bottom of the cylinder for enabling the handle grip to swivel about the cylinder.  
   
   
       4 . A retractable handle system of a luggage case, comprising: 
 two parallel pulling rods each comprising a support tube and one or more sliding tubes each slidable in either the support tube or a lower one of the sliding tubes;    a handle grip comprising a spring depressible, T-shaped push button, a hollow cylinder extended from its bottom to interconnect the handle grip and a top connecting portion of the pulling rods;    an n-shaped control member secured to a longitudinal portion of the push button; and    two connecting rods each having one end disposed proximate either projecting end of the control member and the other end coupled to a locking device,    whereby pressing the push button will push down the control member to contact and push down one ends of the connecting rods for unlocking the locking devices and enabling the handle rods to extend or retract thereafter.    
   
   
       5 . The retractable handle system of  claim 4 , wherein the handle grip is a T-shaped member.