Patent ID: 9650209
Date: 2017-05-16
CPC Classifications: B23Q,B65G

Claim:
1. A conveying device, comprising: first and second annular continuous bodies each extending in a conveying direction of an object to be conveyed, the first and second annular continuous bodies each being rotationally driven and being arranged along a conveying lateral direction which is orthogonal to the conveying direction; a first slat mounted on the first annular continuous body, the first slat moving along the conveying direction in conjunction with the first annular continuous body; a second slat mounted on the second annular continuous body, the second slat moving along the conveying direction in conjunction with the second annular continuous body, and rotating bodies around which the first and second annular continuous bodies are respectively looped, the conveying device conveying the object, the object being placed on upper surfaces of the first and second slats, each of which having a length in the conveying lateral direction greater than a width of one of the first and second annular continuous bodies, wherein the first and second slats extend in the conveying lateral direction so as to respectively protrude from the first and second annular continuous bodies when viewed from a vertical direction orthogonal to both of the conveying direction and the conveying lateral direction, wherein the first and second slats are arranged in a staggered manner without overlapping with each other when viewed from the vertical direction, and wherein the first and second annular continuous bodies have an interval therebetween in the conveying lateral direction, the interval being expandable and contractable, wherein the interval between the first and second annular continuous bodies in the conveying lateral direction is expandable and contractable by moving the rotating bodies along a direction of a rotation center axis of the rotating bodies, wherein the rotating bodies move along the direction of the rotation center axis of the rotating bodies through intermediation of two ball screw mechanisms engaging with an outer peripheral thread of a shaft extending in the conveying lateral direction, wherein the outer peripheral thread comprises: wherein the two ball screw mechanisms move to approach each other when the shaft is rotated in one direction, and the two ball screw mechanisms move to separate from each other when the shaft is rotated in a reverse direction.