Configuration of a Belt Attachment Part

Abstract

A flat belt attachment includes a first bar that connects corresponding positions of a pair of base bars facing each other; and a second bar that is parallel to the first bar and connects the base bars. The second bar includes a second inclined portion at an end portion, and the second inclined portion is shaped to approach the first bar toward a proximal end of the second inclined portion.

1 . A flat belt attachment comprising:
 a first bar that connects corresponding positions of a pair of base bars facing each other; and   a second bar that is parallel to the first bar and connects the base bars, wherein   the second bar comprises a second inclined portion at an end portion, and   the second inclined portion is shaped to approach the first bar as extending toward a proximal end of the second inclined portion.   
     
     
         2 . The belt attachment according to  claim 1 , wherein
 the second bar has a linear middle portion.   
     
     
         3 . The belt attachment according to  claim 1 , wherein
 the first bar comprises a first inclined portion at an end portion in the same direction and shape as those in the second bar.   
     
     
         4 . The belt attachment according to  claim 1 , wherein
 the first bar and the second bar each are axisymmetric around the center in a thickness direction.   
     
     
         5 . The belt attachment according to  claim 1 , wherein
 the second bar has a cross section shaped to enlarge toward the first bar.