Topic
Stair climbing
About: Stair climbing is a research topic. Over the lifetime, 1610 publications have been published within this topic receiving 30504 citations.
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Patent•
15 Aug 2005
TL;DR: In this paper, a stair-climbing crawler unit with three flexibly connected sections and a pair of crawler belt systems on opposite sides of the unit is described.
Abstract: An apparatus for climbing and descending stairs or other obstacles has three flexibly connected sections and a pair of crawler belt systems on opposite sides of the unit. Each of the crawler belt systems comprised of three crawler belts are driven by one of a pair of motors that directly drives a pinion that engages two of the crawler belts, one of which then drives the last crawler belt through another pinion. The stair-climbing apparatus also includes a mounting platform for coupling a carrier device such as a wheelchair or a box. In order to provide cushioning and stability for movements from a horizontal surface to an inclined surface and vice versa, shock absorbers are provided between the three sections. A linear actuator is also provided to provide stabilization as well as the ability to raise and lower both the stair-climbing crawler unit as well as the wheelchair, providing three modes of operation including manually wheel driven mode, motor wheel driven mode, and motor crawler driven mode.
48 citations
Patent•
27 Nov 1991
TL;DR: In this paper, an improved exercise machine for simulating stair climbing, particularly adapted for in-home use, is presented, where the foot pedals are linked to a mechanical resistance element, namely a flywheel.
Abstract: The present invention is an improved exercise machine for simulating stair climbing, particularly adapted for in-home use. The device includes a generally upright frame with a base. Right and left foot pedals are pivotally mounted to the base on either side of the upstanding portion of the frame and a handlebar is provided adjacent the upper end of the frame. The foot pedals are linked to a mechanical resistance element, namely a flywheel. The linkage includes a strap connecting each pedal to a single drive shaft, in turn connected by a belt transmission to the flywheel. A resistance adjustment feature is included in the invention.
47 citations
01 Jan 2001
TL;DR: Open loop controllers for the authors' small robot to climb and descend regular stairs and the reliability is 90% for climbing and 100% for descending, based on ten successive trials.
Abstract: : RHex is a hexapod robot with compliant legs and only six actuated degrees of freedom. Its ability to traverse highly fractured and unstable terrain has already been documented. In this paper, we describe open loop controllers for our small robot to climb and descend regular stairs. The reliability is 90% (9/10) for climbing and 100% (10/10) for descending, based on ten successive trials. Specific resistance, a measure of energy efficiency, during stair climbing is 10.9, and 4.5 during descent.
47 citations
TL;DR: The results of the current study suggest that the association between the executive functioning and motor task (like gait) becomes stronger as the level of complexity of the motor task increases.
47 citations
TL;DR: Air consumption, oxygen uptake, carbon dioxide output, and respiratory exchange ratio were measured directly from the self-contained breathing apparatus as 36 professional firefighters completed scenarios of high-rise stair climbing and fifth floor search and rescue.
47 citations