Automatic Shoe-Cover Machine and Shoe-Cover Packaging Mechanism

Abstract

An automatic shoe-cover machine includes a shoe cover roller, multiple serially-connected shoe covers having foot-insertion openings wound on the show cover roller. A block mechanism, a cutter, and a sliding pull hook are sequentially arranged in a radial direction of the shoe cover roller. The sliding pull hook is connected to a transmission device connected to an electric motor and to an electrical control device. The automatic shoe cover machine utilizes a dragging motion of the feet while the connection of individual shoe covers in a sequential strip allows shoe covers to be donned automatically and continuously, facilitates automatic production of the shoe covers, and is reliable and continuous use of the automatic shoe cover machine.

What is claimed is: 
     
         1 . An automatic shoe cover machine, comprising:
 a shoe cover roller;   a plurality of shoe covers being linked in a serial manner and being rolled up at said shoe cover roller, wherein each of said shoe covers has a foot inserting opening;   a blocking device coupled at said shoe cover at a first position to retain said first shoe cover in position;   an electric motor;   a sliding pull hook driven to move by said electric motor to automatically pull said first shoe cover from said shoe cover roller so as to open up said foot inserting opening of said first shoe cover;   a cutter device being automatically actuated to cut off said first shoe cover from a subsequent shoe cover, wherein said blocking device, said cutting device and said sliding pull hook are sequentially provided on a radial direction of the shoe cover roller; and   a driver operatively linked between said electric motor and said sliding pull hook, wherein said driver comprises a driving screw and a screw nut, wherein said driving screw is provided below said shoe cover roller, wherein said screw nut is sleeved on said driving screw and is connected with said sliding pull hook.   
     
     
         2 . The automatic shoe cover machine, as recited in  claim 1 , further comprising a driver operatively linked between said electric motor and said sliding pull hook, wherein said driver comprises a driving chain and a gear, wherein said driving chain is provided below said shoe cover roller, wherein said driving gear and said driving chain are engaged with each other, wherein said driving chain is connected with said sliding pull hook. 
     
     
         3 . A shoe cover packaging mechanism, comprising:
 a shoe cover roller; and   a plurality of shoe covers wound on the shoe cover roller, wherein each of said shoe covers has a bag-shaped structure having an elastic inserting opening, wherein said shoe covers are aligned in a linear manner and are connected with each other via a plurality of connecting points that each connecting point is provided between two ends of two consequent shoe covers, wherein said shoe covers are rolled up at said shoe cover roller with respect to an axis thereof to form a coil shape structure to be packaged.   
     
     
         4 . The shoe cover packaging mechanism, as recited in  claim 3 , wherein the shoe cover roller is a cylinder-shaped roller. 
     
     
         5 . The shoe cover packaging mechanism, as recited in  claim 3 , wherein said shoe cover roller has a protrusion provided at a middle portion thereof, wherein said protrusion has a cross section bigger than a cross section of each of two ends of said shoe cover roller. 
     
     
         6 . The shoe cover packaging mechanism, as recited in  claim 4 , wherein said shoe cover roller has a protrusion provided at a middle portion thereof, wherein said protrusion has a cross section bigger than a cross section of each of two ends of said cylinder-shaped roller. 
     
     
         7 . A method of dispensing shoe covers, comprising the steps of:
 (a) linking a plurality of shoe covers in a serial manner and rolling up at a shoe cover roller, wherein each of said shoe covers has a foot inserting opening;   (b) coupling a first shoe cover with a sliding pull hook;   (c) opening up said foot inserting opening of said first shoe cover by pulling said first shoe cover from said shoe cover roller by said sliding pull hook; and   (d) cutting off said first shoe cover from a subsequent shoe cover.   
     
     
         8 . The method, as recited in  claim 7 , wherein, in the step (d), said first shoe cover is cut form said subsequent shoe cover by a cutter device. 
     
     
         9 . The method, as recited in  claim 8 , wherein said cutting device and said sliding pull hook are sequentially provided on a radial direction of the shoe cover roller. 
     
     
         10 . The method, as recited in  claim 7 , wherein, in the step (b), said first shoe cover is driven by said sliding pull hook at a blocking device. 
     
     
         11 . The method, as recited in  claim 8 , wherein, in the step (b), said first shoe cover is driven by said sliding pull hook at a blocking device. 
     
     
         12 . The method, as recited in  claim 9 , wherein, in the step (b), said first shoe cover is driven by said sliding pull hook at a blocking device. 
     
     
         13 . The method, as recited in  claim 7  wherein, in the step (c), said sliding pull hook is moved toward said first shoe cover at a radial direction to couple with said first shoe cover by a forward power generated by an electric motor, and said sliding pull hook is moved away from said first shoe cover at the radial direction to pull said first shoe cover from said shoe cover roller by a reverse power generated by said electric motor. 
     
     
         14 . The method, as recited in  claim 11  wherein, in the step (c), said sliding pull hook is moved toward said first shoe cover at a radial direction to couple with said first shoe cover by a forward power generated by an electric motor, and said sliding pull hook is moved away from said first shoe cover at the radial direction to pull said first shoe cover from said shoe cover roller by a reverse power generated by said electric motor. 
     
     
         15 . The method, as recited in  claim 12  wherein, in the step (c), said sliding pull hook is moved toward said first shoe cover at said radial direction to couple with said first shoe cover by a forward power generated by an electric motor, and said sliding pull hook is moved away from said first shoe cover at the radial direction to pull said first shoe cover from said shoe cover roller by a reverse power generated by said electric motor. 
     
     
         16 . The method, as recited in  claim 7 , wherein the step (c) further comprises the steps of:
 (c.1) engaging a first blocking portion of a blocking device with a front end of said subsequent shoe cover; and   (c.2) engaging a second blocking portion of said blocking device with a back end of said first shoe cover so as to open up said foot inserting opening of said first shoe cover between said second blocking portion and said sliding pull hook.   
     
     
         17 . The method, as recited in  claim 14 , wherein the step (c) further comprises the steps of:
 (c.1) engaging a first blocking portion of said blocking device with a front end of said subsequent shoe cover; and   (c.2) engaging a second blocking portion of said blocking device with a back end of said first shoe cover so as to open up said foot inserting opening of said first shoe cover between said second blocking portion and said sliding pull hook.   
     
     
         18 . The method, as recited in  claim 15 , wherein the step (c) further comprises the steps of:
 (c.1) engaging a first blocking portion of said blocking device with a front end of said subsequent shoe cover; and   (c.2) engaging a second blocking portion of said blocking device with a back end of said first shoe cover so as to open up said foot inserting opening of said first shoe cover between said second blocking portion and said sliding pull hook.   
     
     
         19 . The method, as recited in  claim 7 , wherein the shoe cover is made of soft material and has a bag-shaped structure, wherein said shoe covers are aligned in a linear manner and are connected by a plurality of connecting points that each connecting point is provided between two ends of two consequently shoe covers, wherein said shoe covers are wound around said show cover roller to form a coil-shaped structure. 
     
     
         20 . The method, as recited in  claim 18 , wherein the shoe cover is made of soft material and has a bag-shaped structure, wherein said shoe covers are aligned in a linear manner and are connected by a plurality of connecting points that each connecting point is provided between two ends of two consequently shoe covers, wherein said shoe covers are wound around said show cover roller to form a coil-shaped structure.