Aug 18 2014
Toyota Cutting the Fabled Andon Cord, Symbol of Toyota Way | Automotive News
Toyota is retiring the fabled “andon cord,” the emergency cable strung above assembly lines that came to symbolize the built-in quality of the Toyota Way and was widely copied through the auto industry and beyond.
Toyota’s rationale for moving to buttons, according to the article, is the desire to clear the overhead space. Another advantage, not stated in the article, is that the alarm from a button is more location-specific than from a cord.
Another reason to use a cord was that you didn’t have to change it when you rearranged the line, whereas relocating buttons required rewiring. But the wireless button technology has made this a moot point.
See on Scoop.it – lean manufacturing
Oct 27 2017
Jidoka At GE And Amazon | Marc Onetto | Planet Lean
Sourced Planet Lean
Michel Baudin‘s comments: The experience of an executive like Marc Onetto is always a good read. What he recounts, however, has everything to do with the TPS approach to quality and nothing to do with Jidoka. Don’t get me wrong, I appreciate its value. I have seen plants where assembly work is continued on units known to be defective, with a repair area to fix them at the end. I have heard managers justify this practice with the mistaken assumption that it allowed them to ship faster and I have seen the improvements that result from stopping it, in line with what Onetto describes.
But we shouldn’t forget that Jidoka is not about employee empowerment but about automation. Regardless of whether it’s translated as “automation with a human touch” or “autonomation,” it’s still a form of automation. Onetto recounts being made to watch Sakichi Toyoda’s Type G loom stopping when threads broke but that’s not all it did. It also had automatic shuttle change, which solved the problem of what to do when shuttles run out of yarn that had bedeviled loom engineers for decades.
See Jidoka isn’t just about “stop and fix”, Jidoka versus automation, or check out Working with Machines
See on <Scoop it link>
By Michel Baudin • Blog clippings • 3 • Tags: Andon, Automation, Autonomation, jidoka, Toyota, TPS