MOTION CONTROL: As an added measure of safety, many countries are now requiring that passenger elevators have double redundant braking systems. Last fall, Japan made it mandatory that all new elevators have a double brake and double detection system. In order to meet the requirements in Japan, Europe and other countries, Ogura has developed the double MNB brake for commercial elevators.
The double brake is basically just that. It is two identical brakes mounted on one adaptor flange. Since the brakes are holding only, when the brakes are required to come on, both brakes operate at the same time, but in case of a problem with one of the brakes, the other one is designed to still have the capability to handle the torque load required. Both brakes are equipped with limit switches, to know when the brake is either engaged or disengaged. Besides the brake models shown Ogura also makes other series of hoist and elevator brakes.
There is currently much discussion around the term "platform," which may be preceded by the adjectives "mobile," "wearable," "medical," "healthcare," etc. However, regardless of the platform being discussed, they usually have one key aspect in common: They tend to be wireless. So, why is this one aspect so fairly universal? The answer is convenience.
Everyone has a MEMS story. For most of us it’s probably the airbag that saved our lives or the life of a loved one. Perhaps it’s the tire pressure sensor that alerted us about deflation before we were stranded alone on a dark muddy road.
Bioimimicry is not merely a helpful design tool -- it also encourages designers to think not only about how to solve design problems by imitating nature, but how to make the products, materials, and systems they design more ecologically sound and nature-friendly.
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