Abstract
Recently, a lot of researchers put efforts on the information of medical and rescue work. Since the time of rescue is very limited, it always requires a handy tool to perform work. However, most of the existing tools need electricity to generate the output power. If output power could be amplified by only using linkage mechanism, it is possible to enhance the efficiency of rescue and medical work. In the light of this, considering of ease of manufacture and cost factors, this paper will redesign linkage to the subject. In the meanwhile, using dimension generation to synthesize six-bar toggle mechanism, taking advantage of the six-bar linkage with a double toggle effect. And then, we would like to have discussion and classification of the specific precise point and high mechanical advantage. The synthesis method is based on function-generation theory, simplifying complex vector six-bar loop, then using three positions to generate a mapping of all possible solutions. At last, we could find out the range of travel of links through computer-aided quickly and varying the parameters to figure out better characteristics. With above method for the improvement and discussion of existing medical pliers and bolt cutters, Using constraints such as transmission angle, maximum and minimum link ratio to select the solution, and also consider the allocation of individual double toggle position. To show the proposed methods and the direction of improvement for better improvement of existing tools. Energizing the labor- saving tool, so it may finish the rescue mission in right time.