INSIDE RANGE EDGE STONE ASCENDING/DESCENDING DEVICE FOR TRACK IN TRACK AND FIELD STADIUM

摘要

PURPOSE: To allow an inside range edge stone in a track to ascend and descend in order that a track and field stadium is easily useable for a multi-purpose. ;CONSTITUTION: A groove 2 is provided under an inside range edge stone 5 provided along the inside of a track 1 of a track and field stadium, and by supporting the inside range edge stone 5 by a hydraulic cylinder 3 installed in its groove 2 and allowing it to ascend and descend, the inside range edge stone 5 is allowed to go in and out to and from the inside of the groove 2.;COPYRIGHT: (C)1994,JPO&Japio