Roller blade shoes

Abstract

Disclosed is a roller blade shoe that has a shoe body having a cavity in an outsole thereof. A housing is accommodated in the cavity of the shoe body and an underside of the housing is opened. A plurality of roller assemblies are collapsibly installed lengthwise of the housing in an in-line pattern. Each roller assembly includes a lever fork having an upper end pivotably supported on a sidewall of the housing and a roller installed at a lower end of the lever fork. A manipulating handle is pivotably installed at the shoe body and rotated in a forward or backward direction to accommodate/withdraw the roller assemblies into/from the housing. A roller driving wire includes a withdrawing wire and an accommodating wire that are arranged in parallel to each other and both ends of which are connected to the roller assembly. A roller locking device cooperates with the roller driving wire. A brake is mounted on a rear end of the outsole of the shoe body.

It is claimed:  
     
         1 . A shoe with roller blade assembly comprising: 
 a housing being accommodated in a cavity formed in an outsole of a shoe body and having an underside being opened;    a plurality of roller assemblies collapsibly installed lengthwise of the housing in an in-line pattern, each roller assembly including a lever fork having an upper end pivotably supported on a side wall of the housing and a roller installed at a lower end of the lever fork;    a manipulating handle pivotably installed at a heel of the shoe body and rotated in a forward direction or a backward direction to accommodate/withdraw the roller assemblies into/from the housing;    a roller driving wire including a withdrawing wire and an accommodating wire which are arranged in parallel to each other and both ends of which are connected to the roller assembly and the manipulating handle at a predetermined angle about each pivot section thereof;    a roller locking means which is cooperated with the roller driving wire so as to fix the roller assemblies in a withdrawing state; and    a brake mounted on a rear end of the outsole of the shoe body for providing a braking force as necessary.    
     
     
         2 . The shoe as claimed in  claim 1 , wherein the housing includes an outer housing accommodated in the outsole of the shoe body and an inner housing detachably assembled with the outer housing.  
     
     
         3 . The shoe as claimed in  claim 1 , wherein the plurality of roller assemblies are divided into a front roller section and a rear roller section which are integrally connected by a connection link, and the roller driving wire is connected to one roller assembly of each front and rear roller section.  
     
     
         4 . The shoe as claimed in  claim 3 , wherein the withdrawing and accommodating wires respectively have a pair of branch wires which are branched at first ends of the withdrawing and accommodating wires so as to be connected to the front and rear roller section, respectively.  
     
     
         5 . The shoe as claimed in  claim 1 , wherein the withdrawing and accommodating wires are separately connected to two lever plates of the lever fork, and a pair of guide slots for guiding a movement of the withdrawing and accommodating wires are formed at both sides of the housing.  
     
     
         6 . The shoe as claimed in  claim 5 , wherein the two lever plates have a spool for winding the withdrawing and accommodating wires.  
     
     
         7 . The shoe as claimed in  claim 1 , wherein the roller locking means includes; 
 a lever plate formed in the lever fork and having a latching slot at a periphery thereof;    a pair of wire guide pins arranged at an upper end of the housing with a predetermined interval in front and rear directions thereof so as to provide a moving route for the withdrawing and accommodating wires; and    a locking pin which is supported by a housing between the wire guide pins to make contact with upper portions of the withdrawing and accommodating wires, the locking pin being downwardly biased so as to be inserted into the latching slot when the roller is withdrawn.    
     
     
         8 . The shoe as claimed in  claim 7 , wherein the latching slot is formed in the lever plate connected to the accommodating wire, and one end of the locking pin connected to the accommodating wire is downwardly biased so as to perform a leverage movement in a vertical direction according to an operation of the roller driving wire.  
     
     
         9 . The shoe as claimed in claims  7 , wherein a guide pulley for guiding a movement of the withdrawing and accommodating wires is respectively provided at both ends of the wire guide pins.  
     
     
         10 . The shoe as claimed in  claim 1 , wherein the roller locking means includes; 
 a rotating shaft of the lever fork having a latching recess at a periphery thereof;    a pair of wire guide pulleys arranged at an upper end of the housing with a predetermined interval in front and rear directions thereof so as to provide a moving route for the roller driving wire;    a lock lever having a first end pivotably supported by the housing and a second end elastically biased to make contact with the rotating shaft of the lever fork such that the lock lever is latched with the latching recess when the roller is withdrawn; and    a contact pin provided at the second end of the lock lever so as to make contact with an upper end of the accommodating wire.    
     
     
         11 . The shoe as claimed in  claim 10 , wherein a notch is formed at a periphery of the rotating shaft of the lever fork to allow a part of the roller to be introduced into the rotating shaft.  
     
     
         12 . The shoe as claimed in  claim 1 , wherein the manipulating handle includes; 
 a spool formed at a bottom thereof with a pair of latching slots which are positioned corresponding to accommodating and withdrawing positions of the roller assembly, the spool being pivotably supported on a heel of the shoe body, the accommodating and withdrawing wires being wound around the spool in an opposite direction to each other;    a handle for rotating the spool; and    a locker mounted in the heel of the shoe body so as to be elastically inserted into one of latching slots of the spool.    
     
     
         13 . The shoe as claimed in  claim 1 , wherein the manipulating handle includes; 
 a base fixed to the heel of the shoe body and formed at a bottom thereof with an operating slot and a pair of wire passages for guiding first ends of the withdrawing and accommodating wires towards the operating slot;    a pulley-shaped disc rotatably accommodated in the operating slot of the base, first ends of the withdrawing and accommodating wires being fixed to the pulley-shaped disc;    a knob coupled to the pulley-shaped disc and formed at a bottom thereof with a pair of latching slots which are positioned corresponding to accommodating and withdrawing positions of the roller assembly; and    a locker installed on the base so as to be elastically inserted into one of latching slots of the knob.    
     
     
         14 . The shoe as claimed in  claim 1 , wherein the brake includes; 
 a casing coupled to the heel of the outsole of the shoe body and having a space section therein;    a brake block installed in the space section of the casing such that the brake block is moved up and down in the space section, a part of the brake block being downwardly protruded so as to selectively make contact with a ground; and    a fixing screw for fixing the brake block to the casing.    
     
     
         15 . The shoe as claimed in  claim 14 , wherein a supporting wall for bisecting the space section is formed in the casing, a pair of inserting sections, which are respectively inserted into both space sections divided by the supporting wall, are formed in the brake block, and the pair of inserting sections of the brake block are fixed at both sides of the casing with respect to the supporting wall by means of the fixing screw.  
     
     
         16 . The shoe as claimed in  claim 14 , wherein a supporting piece having an angle shape is provided on an upper end of the casing, the supporting piece being inserted into a latching slot formed in a heel cover of the shoe body.  
     
     
         17 . The shoe as claimed in  claim 1 , wherein the brake includes; 
 a body having a pair of hooks at a front end thereof, the hooks being coupled to a rotating shaft of a rearmost roller withdrawn from the outsole of the shoe body;    a support upwardly extending form the body to make contact with an inner portion of the housing; and    a brake pad detachably assembled with an underside of the body.    
     
     
         18 . The shoe as claimed in  claim 1 , wherein a vertical line connecting rotational centers of the lever fork and the roller of the roller assembly passes through a perpendicular line extended from a rotational center of the lever fork while forming a predetermined angle therebetween when the roller is withdrawn.