MAT FOR CHECKING LONG JUMP RECORD CAPABLE OF IMMEDIATELY CHECKING THE LONG JUMP RECORD WITH NAKED EYE

摘要

PURPOSE: A mat for checking long jump record is provided to facilitate storage and carry by easily vary volume and to absorb motion load by impacts generated by the long jump.;CONSTITUTION: A mat for checking long jump record includes a second mat (102) having various colors. An upper surface of the second mat has elastic force, and a transparent first mat is laminated on the upper surface of the second mat to be overlapped. When pressure is applied on a specific location of the upper surface of the first mat, the thickness of the first mat becomes thinner and the adhering state with the second mat is more aggravated and the color of the first mat is indicated on a pressure part through the second mat. When the pressure is removed from the second mat, initial thickness and the adhering state with the first mat are restored by elasticity and the indication on the pressure part is removed.;COPYRIGHT KIPO 2013