Safety switch
AssigneeKeyence Corporation
InventorsKenji KOJIMA, Satoru TOMOSHI, Hiroshi KASHIMA, Choryon OH, Manabu TSUBOYAMA
Life of this patent
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Abstract
A worker is prevented from being hindered. A safety switch includes a switch body including an electromagnet and an actuator attracted to the electromagnet. The switch body includes a drive control unit and a safety control unit which control the safety switch, and the drive control unit and the safety control unit are surrounded by a housing. The housing is arranged on a back surface side of the electromagnet of the switch body, and the housing forms an accommodating portion that accommodates the drive control unit and the safety control unit.
Claims16
1-18. (canceled)
A safety switch comprising:
- an actuator having a member to be magnetized on which a surface to be attracted is formed;
- and
- a switch body having an attracting surface corresponding to the surface to be attracted, wherein the switch body comprises:
- an electromagnet in which the attracting surface is formed and which has a cylindrical outer surface extending in a direction orthogonal to the attracting surface;
- an attachment portion provided on a surface orthogonal to the attracting surface, for attaching the switch body to an installation location;
- a detection unit that detects that the actuator is within a predetermined range with respect to the switch body;
- and
- a housing that accommodates a control circuit connected to the electromagnet, and accommodates the detection unit at a position on a side of the attachment portion with respect to a center of the attracting surface when the switch body is viewed from a front.
Dependencies are inferred from the claim text.