Patent ID: 6512812
Filing Date: 2003-01-28
Classification: G01N

Abstract:
An X-ray foreign-body detector comprising:a casing: an X-ray generation part provided inside the casing; and an X-ray detection unit integrally including an X-ray detection part, which detects X-rays and a conveyor part, which conveys an object to be inspected, for detecting a foreign body contained in the object by receiving the X-rays, which are radiated from the X-ray generation part to the object conveyed by the conveyor part and is transmitted through the object, by means of the X-ray detection part, the X-ray detection part and the conveyor part being integrally attached to a predetermined part of the casing, such that the X-ray detection part and the conveyor part are freely attachable and detachable, wherein the X-ray detection unit comprises an X-ray detection part container made of metal, which has at least an upper surface, a lower surface opposed to the upper surface, and front and rear surfaces which connect the upper and lower surfaces in both sides in a longitudinal direction, and in which a slit extending in a lateral direction to allow the X-rays to penetrate through the upper surface is formed in the upper surface, and the X-ray detection part is provided inside, a front roller support part extending forward in the longitudinal direction of the X-ray detection part container and attached to the X-ray detection part container, a rear roller support part extending rearward in the longitudinal direction of the X-ray detection part container and attached to the X-ray detection part container, a front roller detachably and attachably included in the front roller support part, a rear roller detachably and attachably included in the rear roller support part, and a conveyor belt tensioned around the front and rear rollers, surrounding the X-ray detection part container, and supported on the upper surface of the X-ray detection part container in a state in which the object is mounted thereon, one of the front and rear rollers being constructed as a drive roller and the other one being constructed as a slave roller.