A Construction Method of Safety Work System Based on Confirming Rotation Stop
A man-machine work system such as press working is constructed so that the worker is permitted to enter the work space freely, and safety is assured only on the movable machine-side. This paper describes interlocking systems which guard the worker automatically. In this paper, a safety system based...
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Published in | Nihon Kikai Gakkai ronbunshū. C Vol. 60; no. 576; pp. 2730 - 2737 |
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Main Authors | , , , |
Format | Journal Article |
Language | Japanese |
Published |
The Japan Society of Mechanical Engineers
1994
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Subjects | |
Online Access | Get full text |
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Summary: | A man-machine work system such as press working is constructed so that the worker is permitted to enter the work space freely, and safety is assured only on the movable machine-side. This paper describes interlocking systems which guard the worker automatically. In this paper, a safety system based on confirming the rotation-stop state of a motor is proposed and the method for constructing fail-safe rotation-stop sensors is presented. In the interlocking system shown here, work-start permission to the man-side is provided as a mechanical output from the machine-side. The rotation-stop-state confirmation signal is produced as a logical product of the confirmation signal indicating that the sensor monitoring rotation of the motor is normal and the output of NOT operation which does not erroneously report rotation-stop-state. The safety system presented in this paper meets the requirement of Section 9.7 of British Standard Code of practicefor safety of machinery. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0387-5024 1884-8354 |
DOI: | 10.1299/kikaic.60.2730 |