Adjustable Roller Skates

Abstract

An adjustable roller skate includes a skate device and a boot body. The boot body includes a base frame having a bottom side coupled to the skate device, an insole platform having a rear heel portion and a front toe portion frontwardly extended therefrom, and a vamp cover attached to the front toe portion of the insole platform. The insole platform is slidably coupled at the base frame to define an adjustable accommodating cavity between a rear end of the base frame and a front end of the insole platform, wherein the insole platform is frontwardly slid to extend the adjustable accommodating cavity at its maximum size and is rearwardly slid to reduce the adjustable accommodating cavity at its minimum size.

What is claimed is: 
     
         1 . An adjustable roller skate, comprising:
 a skate device; and   a boot body which comprises:   a base frame which is made of rigid material, wherein said skate device is coupled at a bottom side of said base frame;   an insole platform having a rear heel portion and a front toe portion frontwardly extended therefrom, wherein said insole platform is slidably coupled at said base frame to define an adjustable accommodating cavity between a rear end of said base frame and a front end of said insole platform so as to selectively adjust said adjustable accommodating cavity between a maximum size and a minimum size; and   a vamp cover attached to said front toe portion of said insole platform.   
     
     
         2 . The adjustable roller skate, as recited in  claim 1 , wherein said base frame comprises a heel shelter encircling around said heel portion of said insole platform and a sliding guider frontwardly extended from said heel shelter to slidably couple at said toe portion of said insole platform, such that said insole platform is frontwardly slid away from said heel shelter to extend said adjustable accommodating cavity and is rearwardly slid toward said heel shelter to reduce said adjustable accommodating cavity. 
     
     
         3 . The adjustable roller skate, as recited in  claim 2 , wherein said heel shelter has a U-shaped cross section forming a heel cavity as a rear portion of said adjustable accommodating cavity and defining said heel cavity within said heel shelter and said heel portion of said insole platform. 
     
     
         4 . The adjustable roller skate, as recited in  claim 2 , wherein said insole platform further has a sliding slot formed at a bottom side of said toe portion of said insole platform to slidably engage with said sliding guider of said base frame. 
     
     
         5 . The adjustable roller skate, as recited in  claim 3 , wherein said insole platform further has a sliding slot formed at a bottom side of said toe portion of said insole platform to slidably engage with said sliding guider of said base frame. 
     
     
         6 . The adjustable roller skate, as recited in  claim 1 , wherein said boot body further comprises a retention arrangement for limiting a sliding movement of said insole platform, wherein said retention arrangement has a limiting slot formed at said insole platform and comprises a limiting member extended from said base frame to slidably engage with said limiting slot, such that when said insole platform is slid to stop said limiting member at a front end of said limiting slot, said adjustable accommodating cavity is retained at said minimum size, and when said insole platform is slid to stop said limiting member at a rear end of said limiting slot, said adjustable accommodating cavity is retained at said maximum size. 
     
     
         7 . The adjustable roller skate, as recited in  claim 5 , wherein said boot body further comprises a retention arrangement for limiting a sliding movement of said insole platform, wherein said retention arrangement has a limiting slot formed at said insole platform and comprises a limiting member extended from said base frame to slidably engage with said limiting slot, such that when said insole platform is slid to stop said limiting member at a front end of said limiting slot, said adjustable accommodating cavity is retained at said minimum size, and when said insole platform is slid to stop said limiting member at a rear end of said limiting slot, said adjustable accommodating cavity is retained at said maximum size. 
     
     
         8 . The adjustable roller skate, as recited in  claim 7 , wherein said limiting slot is a through slot formed at said toe portion of said insole platform while said limiting member is upwardly extended from said sliding guider of said base frame to slidably engage with said limiting slot. 
     
     
         9 . The adjustable roller skate, as recited in  claim 1 , wherein said boot body further comprises a locking arrangement for locking said insole platform at said base frame, wherein said locking arrangement comprises a locking arm slidably coupled at said base frame and two or more locking latches spacedly provided at said insole platform, such that when said insole platform is slid to engage one of said locking latches with said locking arm, said adjustable accommodating cavity is retained at said maximum size, and when said insole platform is slid to engage another said locking latch with said locking arm, said adjustable accommodating cavity is retained at said minimum size. 
     
     
         10 . The adjustable roller skate, as recited in  claim 8 , wherein said boot body further comprises a locking arrangement for locking said insole platform at said base frame, wherein said locking arrangement comprises a locking arm slidably coupled at said base frame and two or more locking latches spacedly provided at said insole platform, such that when said insole platform is slid to engage one of said locking latches with said locking arm, said adjustable accommodating cavity is retained at said maximum size, and when said insole platform is slid to engage another said locking latch with said locking arm, said adjustable accommodating cavity is retained at said minimum size. 
     
     
         11 . The adjustable roller skate, as recited in  claim 9 , wherein said locking arrangement further comprises an actuation button provided at said base frame to actuate said locking arm between a locked position and an unlocked position. 
     
     
         12 . The adjustable roller skate, as recited in  claim 10 , wherein said locking arrangement further comprises an actuation button provided at said base frame to actuate said locking arm between a locked position and an unlocked position. 
     
     
         13 . The adjustable roller skate, as recited in  claim 2 , wherein said base frame further comprises a first coupling member, having a first coupling hole, downwardly extended from said heel shelter, and a second coupling member, having a second coupling hole, downwardly extended from said sliding guider, wherein said skate device is replaceably coupled at said first and second coupling members via said first and second coupling holes. 
     
     
         14 . The adjustable roller skate, as recited in  claim 12 , wherein said base frame further comprises a first coupling member, having a first coupling hole, downwardly extended from said heel shelter, and a second coupling member, having a second coupling hole, downwardly extended from said sliding guider, wherein said skate device is replaceably coupled at said first and second coupling members via said first and second coupling holes. 
     
     
         15 . The adjustable roller skate, as recited in  claim 1 , wherein said skate device comprises a wheel frame coupled at said bottom side of said base frame and a plurality of wheels rotatably coupled at said wheel frame. 
     
     
         16 . The adjustable roller skate, as recited in  claim 14 , wherein said skate device comprises a wheel frame coupled at said bottom side of said base frame and a plurality of wheels rotatably coupled at said wheel frame. 
     
     
         17 . The adjustable roller skate, as recited in  claim 15 , wherein said skate device is one of an inline skate device and a quad skate device. 
     
     
         18 . The adjustable roller skate, as recited in  claim 16 , wherein said skate device is one of an inline skate device and a quad skate device. 
     
     
         19 . The adjustable roller skate, as recited in  claim 2 , wherein said boot body further comprises an ankle protection cover movably coupled at said heel shelter of said base frame, a first strapping unit extended between two sides of said heel shelter at a position above said vamp cover, and a second strapping unit extended between two sides of said ankle protection cover. 
     
     
         20 . The adjustable roller skate, as recited in  claim 18 , wherein said boot body further comprises an ankle protection cover movably coupled at said heel shelter of said base frame, a first strapping unit extended between two sides of said heel shelter at a position above said vamp cover, and a second strapping unit extended between two sides of said ankle protection cover.