著者

中川 昭夫 笠 潮 宮部 洋介 井上 昭夫

出版者

一般社団法人 日本機械学会

雑誌

年次大会講演論文集

巻号頁・発行日

vol.2000, pp.349-350, 2000

被引用文献数

3

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Most of caster walkers don't have any brake mechanism. Some of them have hand grip type brake mechanisms but it is not easy for some of the users. For those users, it is desirable if there is a brake system which works only at a time of emergency like an occasion of falling down. Properties of homogeneous ER fluid is ideal because it doesn't show any shear force but it shows a large shear force when a high voltage is applied between a narrow gap but it requires a very small electric current. The caster walker equipped with the ER fluid brake was developed to increase safety of the users.

著者

井上 昭夫 笠 潮 宮部 洋介 中川 昭夫

出版者

一般社団法人 日本機械学会

雑誌

年次大会講演論文集

巻号頁・発行日

vol.2000, pp.281-282, 2000

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Properties of homogeneous ER fluid comprised of liquid crystalline polysiloxane (LCS) were described. The fluid shows Newtonian flow in an electric field and far larger ER effect than heterogeneous ER fluids of particles dispersion in oil. ER brake employed the LCS ER fluid was accomplished with many contrivances in the design and set up process for preventing a fluid leak and filling the fluid completely into a narrow electrode gap. The brake showed a large torque (brake power) with very small electric consumption. A caster walker with intelligent ER brake was developed for a practical use.