1. From: A Statically Unstable Passive Hopper: Design Evolution
Date of download: 12/29/2017
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From: A Statically Unstable Passive Hopper: Design Evolution
J. Mechanisms Robotics. 2017;9(1): doi: /
Figure Legend:
Early use of leaf spring in hopper. The body frame A was a U shaped bent aluminum extrusion. Leaf spring pair B connected dual wooden legs (chopsticks) C to the frame. The tail mast D was a wooden dowel with clay adhered at top. Clamps and clay were used as adjustable masses E1–E2 (multimedia extension 5 video).