Roll and method for manufacturing roll

Abstract

The invention has purposes of increasing length of a wound body in a roll by efficiently using a space formed in a container and of improving strength as a unit by reducing the space. In a roll ( 1 ) in which a wound body ( 2 ) is wound around a specified axis for plural times, a spacer ( 3 ) is provided in a portion of a region between turns of the wound body ( 2 ).

1 . A roll in which a wound body is wound around a specified axis for plural times to form concentric laminations of the wound body, wherein
 a spacer is provided in a portion of a region between adjacent laminations of the wound body.   
     
     
         2 . The roll according to  claim 1 , wherein
 the wound body has: plural corner sections bent by respective spacers; and a linear section between two each of the corner sections.   
     
     
         3 . The roll according to  claim 2 , wherein
 mounting intervals of the spacers are equally spaced intervals.   
     
     
         4 . The roll according to  claim 2 , wherein
 the spacers are provided at every 90° with the specified axis being a center when the roll is seen in a vertical cross section along a winding direction of the wound body.   
     
     
         5 . The roll according to  claim 2 , wherein
 the spacers are provided at every 60° with the specified axis being a center when the roll is seen in a vertical cross section along a winding direction of the wound body.   
     
     
         6 . The roll according to  claim 2 , wherein
 the spacers are provided at every 120° with the specified axis being a center when the roll is seen in a vertical cross section along a winding direction of the wound body.   
     
     
         7 . The roll according to  claim 1 , wherein the spacer is formed of curable ink or gel. 
     
     
         8 . The roll according to  claim 1 , wherein the spacer is formed of plastic. 
     
     
         9 . The roll according to  claim 2 , wherein all of the spacers are formed in the same size. 
     
     
         10 . The roll according to  claim 2 , wherein at least some of the spacers are formed in different size from the other spacers. 
     
     
         11 . The roll according to  claim 1 , wherein the wound body is a belt-shaped laminated body. 
     
     
         12 . The roll according to  claim 11 , wherein
 the belt-shaped laminated body is a power-generating element body that has a positive electrode sheet, a negative electrode sheet, and a separator that is arranged between the positive electrode sheet and the negative electrode sheet.   
     
     
         13 . The roll according to  claim 1 , wherein the wound body is a wire member. 
     
     
         14 . A method for manufacturing the roll according to  claim 1 , the method comprising:
 feeding the wound body to a core material for winding the wound body;   sequentially providing spacers in advance at preset intervals on a surface of the wound body during feeding of the wound body; and   sequentially winding the wound body, which is provided with the spacers, around the core material.   
     
     
         15 . The method for manufacturing the roll according to  claim 14 , wherein
 the spacers are formed when curable ink is injected onto the surface of the wound body and the ink is cured.   
     
     
         16 . The method for manufacturing the roll according to  claim 14 , wherein
 the spacers are formed when a spacer that is retained by a retainer is adhered to the surface of the wound body.   
     
     
         17 . A method for manufacturing the roll according to  claim 1 , the method comprising:
 feeding the wound body to a core material for winding the wound body;   providing spacers in advance at preset intervals on a surface of the wound body before feeding of the wound body; and   sequentially winding the wound body, which is provided with the spacers, around the core material.   
     
     
         18 . A method for manufacturing the roll according to  claim 1 , the method comprising:
 feeding the wound body to a core material for winding the wound body;   sequentially winding the wound body, which is fed, around the core material; and   inserting and mounting spacers at preset intervals between the wound bodies while the wound body is wound around the core material.