Method of producing heat shield

Abstract

A method of producing a heat shield includes the step of producing a plate-shaped material provided by developing a funnel shape having a plurality of face sections ( 20, 21, 22 ) which are adjacent to each other and one ( 20 ) of which is a mounting surface and the bending step of bending the plate-shaped material such that the face sections ( 21, 22 ) other than the face section ( 20 ) corresponding to the mounting surface are orthogonal to the mounting surface section.

1 - 4 . (canceled) 
   
   
       5 . A method of producing a heat shield comprising:
 the step of producing a plate-shaped material provided by developing a funnel shape having a plurality of walls which are adjacent to each other and one of which is a mounting wall;   the bending step of bending the plate-shaped material such that the face section corresponding to the mounting surface is orthogonal to the other corresponding face sections; and   the butt-bending step of forming the mounting face section corresponding to the mounting surface by butting the ends of the plate-shaped material against each other.   
   
   
       6 . The method of producing a heat shield according to  claim 5 , wherein in the step preceding the butt-bending step, a fit means is provided at each of the ends thereof to be arranged in an abutting relation and then those fit means are fit with each other by the butt-bending step. 
   
   
       7 . The method of producing a heat shield according to  claim 5 , wherein the fit means includes a dowel and a dowel hole.