Retractable handle of carry-on luggage

Abstract

Provided is a handle assembly for carry-on luggage. The inverted U-shaped handle assembly comprises two handle units each comprising a handle rod comprising a fixed bottom support tube and a plurality of sliding tubes arranged telescopically about a tube therebelow; a locking device in the tubes; and a resilient device under of the support tube. Pressing the push button will unlock the handle units and resiliently move the handle rods upward a predetermined small distance prior to being able to fully extend the handle rods.

1 . A handle assembly for a carry-on luggage, comprising: 
 a pair of elongate substantially parallel handle units; and    a handle grip ( 10 ) interconnected the handle units, the handle grip ( 10 ) comprising a push button ( 13 ) and two connecting rods ( 16 ) actuated by the push button ( 13 );    wherein either handle unit comprises:    a handle rod ( 20 ) comprising a fixed bottom support tube ( 24 ), a top first sliding tube ( 21 ), an upper second sliding tube ( 22 ), and a lower third sliding tube ( 23 ) wherein the first sliding tube ( 21 ) has a top end fixedly connected to the handle grip ( 10 ), and each of the first, second, and third sliding tubes ( 21 ,  22 , and  23 ) is arranged telescopically about a tube therebelow;    a locking device ( 30 ) comprising an upright locking mechanism ( 31 ) and a sliding locking unit ( 34 ) wherein the locking mechanism ( 31 ) comprises a locking block ( 32 ) and a sliding block ( 33 ), the locking block ( 32 ) and the first sliding tube ( 21 ) are connected together by a first pin ( 51 ), the locking block ( 32 ) comprises a spring-depressible first locking member ( 325 ) locked in a lower positioning hole ( 222 ) of the second sliding tube ( 22 ), the sliding block ( 33 ) is provided in the locking block ( 32 ) and has a top end thereof fixedly connected to a bottom end of the connecting rod ( 16 ), and the sliding locking unit ( 34 ) comprises an upper first block ( 35 ), a lower second block ( 36 ), and a sliding rod ( 37 ) wherein the first block ( 35 ) and the second sliding tube ( 22 ) are connected together by a second pin ( 52 ), the first block ( 35 ) comprises a spring-depressible second locking member ( 356 ) locked in a lower positioning hole ( 232 ) of the third sliding tube ( 23 ), the second block ( 36 ) and the third sliding tube ( 23 ) are connected together by a third pin ( 53 ), the second block ( 36 ) comprises a spring-depressible third locking member ( 364 ) locked in a positioning hole ( 242 ) of the support tube ( 24 ), and the sliding rod ( 37 ) is provided in the first block ( 35 ) and comprises a transverse tunnel ( 371 ) connected to the second sliding tube ( 22 ) by the second pin ( 52 ); and    a resilient device ( 40 ) under of the support tube ( 24 ) and comprising a spring-depressible, T-shaped member ( 43 ) having a top urged against bottom of the second block ( 36 );    whereby pressing the push button ( 13 ) will unlock the handle units and resiliently move the handle rods ( 20 ) upward automatically a predetermined small distance prior to being able to fully extend the handle rods ( 20 ).    
   
   
       2 . The handle system of  claim 1 , wherein the handle grip ( 10 ) further comprises two tubes ( 111 ) extended downward from both ends thereof to fixedly connect to a top of the first sliding tubes ( 21 ).  
   
   
       3 . The handle system of  claim 1 , wherein the handle grip ( 10 ) further comprises a spring ( 12 ) urged against the push button ( 13 ) and two levers ( 14 ) each pivotally disposed within the handle grip ( 10 ) and an inner end of each lever ( 14 ) interconnected to either end of the push button ( 13 ) and an outer end of each lever ( 14 ) connected to an upper end of the respective connecting rod ( 16 ).  
   
   
       4 . The handle system of  claim 1 , wherein each of the second sliding tube ( 22 ), the third sliding tube ( 23 ), and the support tube ( 24 ) comprises a releasable sleeve ( 221 ,  231 , or  241 ) fitted on a top thereof, respectively.  
   
   
       5 . The handle system of  claim 1 , wherein the locking block ( 32 ) further comprises a longitudinal tunnel ( 321 ), an upper member ( 322 ), and a lower member ( 323 ) larger than the upper member ( 322 ) and including a lateral recessed portion ( 324 ) for receiving the spring-depressible first locking member ( 325 ).  
   
   
       6 . The handle system of  claim 1 , wherein the sliding block ( 33 ) comprises a lower slope ( 331 ) and the spring-depressible first locking member ( 325 ) comprises an inner slope ( 3251 ) matingly engaged with the lower slope ( 331 ) of the sliding block ( 33 ).  
   
   
       7 . The handle system of  claim 1 , wherein the first block ( 35 ) further comprises a longitudinal channel ( 351 ) in the central portion thereof, an upper element ( 352 ), and a lower element ( 353 ) larger than the upper element ( 352 ) and the lower element ( 353 ) including a first lateral recessed portion ( 354 ) for receiving a spring ( 357 ) and the spring-depressible second locking member ( 356 ), and a second lateral recessed portion ( 355 ) for receiving a spring ( 359 ) and a spring-depressible third locking member ( 358 ).  
   
   
       8 . The handle system of  claim 1 , wherein the spring-depressible second locking member ( 356 ) comprises a V-shaped projection ( 3561 ) at one side.  
   
   
       9 . The handle system of  claim 1 , wherein the second block ( 36 ) further comprises an upper socket ( 361 ), a spring-depressible fourth locking member ( 364 ), and a third lateral recessed portion ( 362 ) for receiving a spring ( 365 ) and the spring-depressible fourth locking member ( 364 ).  
   
   
       10 . The handle system of  claim 7 , wherein the spring-depressible third locking member ( 358 ) comprises a V-shaped projection ( 3581 ) at one side.  
   
   
       11 . The handle system of  claim 10 , wherein the sliding rod ( 37 ) further comprises a lower first slope ( 372 ), an upper second slope ( 373 ), and a bottom slope ( 374 ) matingly engaged with the V-shaped projection ( 3581 ) of the spring-depressible third locking member ( 358 ).  
   
   
       12 . The handle system of  claim 1 , wherein the resilient device ( 40 ) further comprises a spring ( 42 ) and a hollow base ( 41 ) for receiving the T-shaped member ( 43 ).  
   
   
       13 . The handle system of  claim 1 , wherein each of the second sliding tube ( 22 ), the third sliding tube ( 23 ), and the support tube ( 24 ) comprises one or more positioning holes ( 222 ,  224 ,  232 ,  234 ,  242  and  243 ).  
   
   
       14 . A handle assembly for a carry-on luggage, comprising: 
 a pair of elongate substantially parallel handle units; and    a handle grip ( 10 ) interconnected the handle units, the handle grip ( 10 ) comprising a push button ( 13 ) and two connecting rods ( 16 ) actuated by the push button ( 13 );    wherein either handle unit comprises:    a handle rod ( 20 ) comprising a fixed bottom support tube ( 24 ), a first sliding tube ( 21 ), and a second sliding tube ( 22 ) wherein the first sliding tube ( 21 ) has a top end fixedly connected to the handle grip ( 10 ), and each of the first and second sliding tubes ( 21 ,  22 ) is arranged telescopically about a tube therebelow;    a locking device ( 30 ) comprising an upright locking mechanism ( 31 ) and a lower second block ( 36 ), wherein the locking mechanism ( 31 ) comprises a locking block ( 32 ) and a sliding block ( 33 ), the locking block ( 32 ) and the first sliding tube ( 21 ) are connected together by a first pin ( 51 ), the locking block ( 32 ) comprises a spring-depressible first locking member ( 325 ) locked in a lower positioning hole ( 222 ) of the second sliding tube ( 22 ), the sliding block ( 33 ) is provided in the locking block ( 32 ) and has a top end thereof fixedly connected to a bottom end of the connecting rod ( 16 ), and wherein the second sliding tube ( 22 ) are connected together with the second block ( 36 ) by a pin ( 53 ), the second block ( 36 ) comprises a spring-depressible third locking member ( 364 ) locked in a positioning hole ( 242 ) of the support tube ( 24 ), and    a resilient device ( 40 ) under of the support tube ( 24 ) and comprising a spring-depressible, T-shaped member ( 43 ) having a top urged against bottom of the second block ( 36 );    whereby pressing the push button ( 13 ) will unlock the handle units and resiliently move the handle rods ( 20 ) upward automatically a predetermined small distance prior to being able to fully extend the handle rods ( 20 ).    
   
   
       15 . The handle system of  claim 14 , wherein the handle grip ( 10 ) further comprises two tubes ( 111 ) extended downward from both ends thereof to fixedly connect to a top of the first sliding tubes ( 21 ).  
   
   
       16 . The handle system of  claim 14 , wherein the handle grip ( 10 ) further comprises a spring ( 12 ) urged against the push button ( 13 ) and two levers ( 14 ) each pivotally disposed within the handle grip ( 10 ) and an inner end of each lever ( 14 ) interconnected to either end of the push button ( 13 ) and an outer end of each lever ( 14 ) connected to an upper end of the respective connecting rod ( 16 ).  
   
   
       17 . The handle system of  claim 14 , wherein each of the second sliding tube ( 22 ), the third sliding tube ( 23 ), and the support tube ( 24 ) comprises a releasable sleeve ( 221 ,  231 , or  241 ) fitted on a top thereof, respectively.  
   
   
       18 . The handle system of  claim 14 , wherein the locking block ( 32 ) further comprises a longitudinal tunnel ( 321 ), an upper member ( 322 ), and a lower member ( 323 ) larger than the upper member ( 322 ) and including a lateral recessed portion ( 324 ) for receiving the spring-depressible first locking member ( 325 ).  
   
   
       19 . The handle system of  claim 14 , wherein the sliding block ( 33 ) comprises a lower slope ( 331 ) and the spring-depressible first locking member ( 325 ) comprises an inner slope ( 3251 ) matingly engaged with the lower slope ( 331 ) of the sliding block ( 33 ).