Fish caught for network dilator using a material having elasticity such as shape memory alloys, net expander

摘要

(57) [summary] [purpose] extension to keep the net 4 is firmly depth of a position close to the handle, hold. [Configuration] there is elasticity, attaching a rust resistant shape memory alloy (which was set at room temperature in the super-elastic state) and glass fiber reinforced bridge 2 of the resin in the framework 1 of the network at the same time, bridge 2 and a net 4 large number of fixed connected by string 8, such as the position close to the handle of the net, it extends hold the position desired by the fishing party.