Conveyor device for conveying food

A conveyor device for conveying food which processes food while conveying the food with a spiral conveyor belt disposed in a vertical direction in a closed space, the conveyor device comprising:

• bar members which are arranged in parallel to form the conveyor belt;
• coupling members which are fixed to both ends of each of the bar members and couple the bar members with each other;
• a guide rail which slidably supports the conveyor belt including the bar members;
• and
• a sprocket which meshes with tooth-shaped portions formed on the coupling members, wherein
• each of the coupling members includes a metallic insert member and a wear resistant resin member incorporating the metallic insert member, has a bent shape with an interior space, has both end portions coupled to a first bar member, and has a pair of slotted holes in which a second bar member which is adjacent to the first bar member is loosely fitted,
• each wear resistant resin member forms the tooth-shaped portion as well as a pair of slide surfaces disposed to be vertically symmetrical with respect to the bar members such that one of the pair of the slide surfaces slides on the guide rail, and
• a meshing portion of the sprocket which meshes with the tooth-shaped portions is formed of a wear resistant resin.