SCRIBING BOARD FOR RECORDING DEVICE OF DISPLACEMENT TRAJECTORY OF CONSTRUCT AND RECORDING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a scribing board in a recording device of a displacement trajectory of a construct for recording a trajectory of relative displacement when a construct causes vibration in an earthquake or the like, and an upper structure is relatively displaced to a lower structure, in which the movement of a scribing needle moving along a scribing board can be visually confirmed from the vertical line passing the center of the scribing board, and can be tracked by the camera, etc.SOLUTION: A scribing tool 4 is directly or indirectly fixed in any one of an upper structure 7 and a lower structure 8, and directly or indirectly fixed in any other of the upper structure 7 and the lower structure 8. A scribing needle 5 of the tip of the scoring tool records a trajectory of the relative displacement as a scribing line 22 in the relative displacement of the upper structure 7 and the lower structure 8 on the scribing board 2. A body 20 of the scribing board is formed of materials having transparency or translucency. When the scribing needle 5 moves while coming into contact with one surface in the thickness direction of the body 20, a peelable coating material 21 is applied. When the scribing needle 5 moves, the coating material 21 is peeled off along the moving line.