Handrail inspection device for passenger conveyor

Abstract

The invention provides a handrail inspection device for a passenger conveyor, which comprises an X-ray irradiator (2) for irradiating X rays on ring-shaped handrails (1) equipped with a plurality of anti-tension bodies; a light receiver (3) for receiving the X rays; a camera (5) for detecting the X-rays as images; an image processor (6) for detecting the images obtained by the camera and determining whether the anti-tension bodies of the handrails are abnormal or not; a pair of machine boxes (7a,7b) for accommodating the X-ray irradiator, the inspected part of the handrails, the light receiver and the camera; and a closed part. Therefore, X rays generated by the X-ray irradiator are prevented from leaking to the outside.

Description

technical field [0001] The present invention relates to a handrail inspection device of a passenger conveyor for inspecting whether an abnormality occurs in a tensile member embedded in a handrail of a passenger conveyor. Background technique [0002] In general, a passenger conveyor is provided with a ring-shaped handrail that passengers on the steps grasp to prevent falling, and that walks in conjunction with a guide rail of a handrail. This handrail is made of elastic body such as rubber, and this elastic body sometimes loses tension due to temperature changes and long-term use, etc., so that it cannot be tensioned and arranged in the guide rail of the railing. In order to prevent this, a plurality of tensile members such as steel wires (steel cords) are embedded in the inside of the handrail in alignment with the direction in which the handrail extends. [0003] However, even if a plurality of tensile members are embedded in the handrail, these tensile members will move...

AI Technical Summary

Problems solved by technology

[0007] In the above-mentioned conventional X-ray inspection device, since the direction and magnitude of the force acting on each side of the rectangle differs depending on the shape and position of the handrail, a gap is generated between the sides of the curved rectangle.

In particular, since the rectangle of the shielding body does not reach the curved portion inside the armrest, there is a gap between the curved portion inside the armrest and the rectangle of the shielding body that enters the interior of the armrest, and X-rays may leak from these gaps.

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