PURPOSE: To provide a device that is able to improve safety and to shorten a span of workhours by grasping a piano wire position at a reference floor in a machine room even if reciprocation from the machine room to the reference floor and vice versa is not performed in time of setting the position of an upper templet.

CONSTITUTION: All directional positions of piano wires 6a and 6b to be hung down from an upper templet 12 are detected by three sensors 17, 18 and 19 installed in each specified position of a reference floor, and these positions are transmitted to a display 16 of a machine room MR by a wireless or wire line, and then the upper templet is moved and adjusted on the basis of this mobile information, whereby permanent fixation takes place.