Locking/unlocking mechanism for the extendable handle on a hand-trailable luggage case

摘要

A locking/unlocking mechanism is provided for use on the extendable handle of a hand-trailable luggage case, which is smooth in operation and reliable for use for a long period of time. The locking/unlocking mechanism of the invention is for use on an extendable handle on a hand-trailable luggage case for the purpose of locking the extendable handle at a retracted position and allowing a user to unlock the extendable handle from the retracted and locked position so that the extendable handle can be freely extended out for use by the user. The locking/unlocking mechanism includes a casing having a receptacle; an actuating device allowing the user to unlock and release the extendable handle from the retracted position by pressing thereon; a pair of slidable devices, each being formed with a locking bolt on an outer side thereof for locking the elongated bars of the extendable handle at the retracted position and a toothed bar on an inner side thereof which is meshed to a gear. The provision of the gear meshed to the toothed bars on the slidable devices allows the locking/unlocking mechanism to operate smoothly when unlocking the elongated bars of the extendable handle from locked position.