I am in the process of designing an exercise bike for parents with young children, the handlebars will be attached to a seat in front of the bike which can rock the child back and forth while you cycle. I have been looking up the different kinds of mechanisms but cannot seem to find a great amount of information about them or any diagrams showing exactly how they work. I have started designing the bike on Solidworks but need help with the mechanism. If anyone could give me any advice on the best mechanism to use and how it actually works, this would be an enormous amount of help! Thanks in advance.