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- Newsgroups: comp.robotics
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- From: smjeff@lerc05.lerc.nasa.gov (Jeff Miller)
- Subject: Re: The Springwalker machine
- Message-ID: <1992Sep11.142340.8769@eagle.lerc.nasa.gov>
- Sender: news@eagle.lerc.nasa.gov
- Nntp-Posting-Host: lerc05.lerc.nasa.gov
- Organization: NASA Lewis Research Center, Cleveland Ohio
- References: <SJE.92Sep10120945@xylos.ma30.bull.com>
- Distribution: comp
- Date: Fri, 11 Sep 1992 14:23:40 GMT
- Lines: 45
-
- In article <SJE.92Sep10120945@xylos.ma30.bull.com> sje@xylos.ma30.bull.com writes:
- >Yesterday (1992.09.09) I saw a brief piece on CNN about a rather
- >interesting new apparatus that provides mechanical assistance for
- >human locomotion. Called the "Springwalker", the machine consists of
- >a metal frame worn on the user's back with springs and pulleys that
- >connect to a part of articulated "legs". The two mechanical legs are
- >driven by the user's legs and form the only contact with the ground.
- >Invented by a physicist, the newly patented device promises to allow
- >walking speeds of from ten to fifteen meters per second (20-30 MPH).
- >The idea is that springs connected to the machine legs absorb and
- >store recoil energy instead of having it be dissipated as heat.
- >
- >I was interesting to watch. The springs and pulleys were a bit noisy,
- >however. Perhaps the biggest problems were the apparent need for
- >assistance in mounting and unmounting the machine.
- >
- >The inventor was hoping for mass production of the devices to bring
- >the per unit cost down to US$1500 or so.
- >
- >This definitely looks like something that experimental roboticists
- >should look at as an alternative to wheel or track based locomotion.
- >
- > [The above opinions expressed are my own; not necessarily held by others.]
- > == Steven J. Edwards Bull HN Information Systems Inc. ==
- > == (508) 294-3484 300 Concord Road MS 820A ==
- > == sje@xylos.ma30.bull.com Billerica, MA 01821 USA ==
- >"That Government which Governs the Least, Governs Best." -- Thomas Jefferson
-
-
- I have never heard of this device, but it sounds like a double pogo stick.
- "Locomoting" on a regular pogo stick is very tiring, which is due in part
- to the extra mass you have to carry around. Since this new thing weighs
- twice as much as an equivalent single pogo stick I would guess that it
- would be more tiring than a single pogo stick. I agree that legs have
- several advantages over wheels, however, this particular device doesn't
- sound all that promising. It might make an interesting piece of
- exercise equipment. Sort of like a Stairmaster where the scenery changes.
-
-
- --
- Jeffrey H. Miller smjeff@lerc05.lerc.nasa.gov
- Sverdrup Technology, NASA Lewis Research Center Group, Cleveland, Ohio
-
- favorite book title: Attack of the Deranged Mutant Killer Monster Snow Goons
-
-