| 摘要 |
PROBLEM TO BE SOLVED: To provide a mesh belt with a step surface in which an inclination to the extent of not falling can be provided to a product on a placing surface.SOLUTION: A small diameter spiral wire 31 and a thick diameter spiral wire 32 having substantially the same spiral pitches SP and bending diameters SR are disposed alternately so that respective spiral central axes X1, X2 are arranged in parallel at substantially the same intervals as the bending diameters SR. The small diameter and thick diameter spiral wire 31, 32 are engaged with adjacent spiral wires 32, 31, and thereby a mesh placing surface with steps is formed by a diameter difference between the small diameter spiral wire and the thick diameter spiral wire. Preferably, rib materials 33, 34 in parallel to the spiral central axes X1, X2 may be disposed between the small diameter spiral wire 31 and the thick diameter spiral wire 32, and the small diameter and thick diameter spiral wire 31, 32 may be engaged with the adjacent rib materials 33, 34 in place or in addition to adjacent spiral wires 32, 31, and thereby the mesh placing surface is formed. |
