Winding device and winding method of wire body

Abstract

It is an object of the present invention to provide an apparatus and method for winding a wire which are simple in structure and in which spring of the wire out of an annular guide is prevented by accommodating a cut terminal portion of the wire in the annular guide which is disposed movably toward one end of a take-up bobbin. The annular guide ( 20 b ) is disposed so that it is capable of covering one of the collars of the take-up bobbin ( 3 ) for the wire. The annular guide ( 20 b ) has a notch ( 24 ) for guiding the wire and an inner peripheral surface ( 25 ) having an inner diameter gradually increasing in a direction remote away from the bobbin. The annular guide ( 20 b ) may be formed in the shape so that it has an engagement portion ( 26 ) for preventing the spring of the wire out of the bobbin. The annular guide ( 20 b ) is disposed on the collar ( 3 a ) so that it is movable in an axial direction of the bobbin, or the annular guide ( 20 b ) may comprise a plurality of portions, which are moved to form the annular guide on the collar ( 3 a ).

1 . An apparatus for winding a wire, wherein an annular guide has a notch for guiding the wire, 
 has an inner peripheral surface whose diameter gradually increases in a direction remote away from the bobbin,    and is disposed so that it can cover one of collars of a take-up bobbin for the wire.    
   
   
       2 . An apparatus for winding a wire as defined in  claim 1 , wherein the annular guide has an engagement portion for preventing the wire from spring out of the bobbin.  
   
   
       3 . An apparatus for winding a wire as defined in  claim 1  or  2 , wherein the annular guide is disposed so that it is movable in an axial direction of the bobbin.  
   
   
       4 . An apparatus for winding a wire as defined in  claim 1  or  2 , wherein the annular guide comprises a plurality of portions which move to form the annular guide.  
   
   
       5 . An apparatus for winding a wire as defined in  claim 1  or  2 , wherein the apparatus comprises a wire positioning device for guiding the cut terminal portion of the wire.  
   
   
       6 . An apparatus for winding a wire as defined in  claim 5 , wherein the wire positioning device comprises a guide rod for moving the wire and a guide plate for preventing the spring of the wire.  
   
   
       7 . A method of winding a wire wherein the method comprises the steps of: 
 winding a wire on a take-up bobbin;    guiding a cut terminal portion of the wire to a notch of an annular guide which covers one of collars of the take-up bobbin on completion of winding the wire; and    guiding the cut terminal portion of the wire to the outside of the take-up bobbin along the inner peripheral surface of the annular guide whose diameter increases in a direction away from the bobbin.    
   
   
       8 . A method of winding a wire wherein the method comprises the steps of: 
 winding a wire on a take-up bobbin;    guiding a cut terminal portion of the wire to a notch of an annular guide which covers one of collars of the take-up bobbin on completion of winding the wire;    guiding the cut terminal portion of the wire to the outside of the take-up bobbin along the inner peripheral surface of the annular guide whose diameter increases in a direction away from the bobbin; and    engaging the cut terminal portion of the wire with an engagement portion provided on the annular guide by centrifugal force caused by the rotation of the take-up bobbin.    
   
   
       9 . A method of winding a wire as defined in claim or  8 , wherein the annular guide is moved to cover one the collars of the take-up bobbin when the winding the wire is completed.