CARRIER DEVICE FOR MOVABLE SOUND-REFLECTION BOARD WITHOUT POWER-DRIVEN MACHINE

摘要

PURPOSE: a kind of sound reflection board of unpowered toter increases only sound reflection board vertical with the back centre of manual force counterweight frame can effectively, simply be transported by. ;CONSTITUTION: a kind of sound reflection board of unpowered toter includes frame (31), jack assembly (34), handle (35), handle (36). Base of frame is inserted into the weight of the Floor frame structure in the space between mainboard and including wheel (33) and supporting support (32). Screw jack assemblies raising lessens the weight frame structure on floor. The lifting handle is manual control screw jack assemblies. ;The 2010 of copyright KIPO submissions