VARIABLE LIMIT SWITCH

摘要

Provided is a variable limit switch capable of changing the settings such as the motion range of a controlled subject or the limit range of a motion, a time point of changing a motion and the like. The variable limit switch comprises: a body; a driving shaft, rotatably coupled to the body and having a thread on an outer circumferential surface; a first hollow-type limit gear which has first gear teeth on the outer circumferential surface and a thread on an inner circumferential surface and is screwed to the outer circumferential surface of the driving shaft; a first control bar having a first rotational control protrusion which is in parallel with the driving shaft, is rotatably coupled to the body and is engaged with the first gear teeth on the outer circumferential surface to limit a rotation of the first limit gear; and at least one first switch module which is located in a moving path of the first limit gear and moves in accordance with whether to come into contact with the first limit gear. When the driving shaft rotates, the first limit gear moves along the driving shaft to operate the first switch module.