LOAD SUPPORTING DEVICE, CARRIER SYSTEM HAVING THE SAME AND METHOD FOR LOAD SUPPORTING

摘要

PURPOSE: A load supporting apparatus, a transportation system having the same and a load supporting method having a load supporting apparatus are provided to elastically support target object because one end of a transfer bolt is attached to the target object by elastic energy of a torsion spring. CONSTITUTION: A load supporting apparatus(100) comprises a transfer shaft(10), a transfer bolt(20), a fixing housing(30), and a spring device(40). The transfer shaft is rotatably formed and the transfer bolt has a hole and threads or screw grooves. The transfer shaft is inserted into the hole. Threads or screw grooves of the fixing housing are formed oppositely to the threads or screw grooves of the transfer bolt which is accommodated in a hollow portion of the fixing housing. The spring device is attached in one end of the fixing housing and the transfer shaft penetrates through the spring device which has rotating units and spring units. If the rotating unit rotates, elastic energy is accumulated by the spring part.