The too many uses of the five- bar mechanism and the seven-bar
one in novel mechanical systems, lead us to develop the action of
the both mechanisms. Compacting the both mechanisms gives
ability new mechanism with dual action. It is that the new o
ne is
better in achieving but It's more difficult in studying from the to
separately. The developing of the action appears in decreasing the
maintenance and having the same goal with low weight and no
friction. The experiment refers that using flexural hinges in a
system at least leads to all of that advantages. We have a plane
mechanical system consisted of five bar mechanism and seven bar
mechanism, with revolute joints. Then, we replace each revolute
joint with super elastic hinge. In this way, we have a gate to build a
system,strongly recommended, to achieve the same goal using
minimum energy. The main purpose of this paper is to elaborate a
mathematical mechanism able to estimate the deviations of the
considered system before and after replacing revolute hinges,
taking into account the real performance of the novel system
through additional large extra displacements in the flexural hinges.
