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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
17 Dec 2014
TL;DR: In this article, a wheelchair stair climbing wheelchair is described, which consists of a stair climbing structure, a wheelchair and walking wheels, and a wheel chain train is used to drive two sets of four-legs foot stands to make alternant forward rising and falling movement.
Abstract: The invention relates to a stair climbing wheelchair, which comprises a wheelchair stair climbing device, a wheelchair and walking wheels, wherein the wheelchair stair climbing device comprises a power part, a gear chain power train, and a stair climbing structure, and the power part comprises a power source and a power source driving gear; the gear chain power train comprises a device framework, a main drive axle and a pair of driving gear chain mechanisms, and the device framework comprises a framework body and a pair of gear chain supports; the main drive axle comprises a main drive shaft and a power source driven gear, and the driving gear chain mechanism comprises I-class and II-class main drive gears and main drive rockers I and II; the stair climbing structure comprises a pair of stair climbing inner foot stands and outer foot stands, and the stair climbing inner foot stand comprises an inner foot stand linking rod, a telescopic inner foot stand front leg and a telescopic inner foot stand back leg; the stair climbing outer foot stand comprises an outer foot stand linking rod, a telescopic outer foot stand front leg and a telescopic outer foot stand back leg. A wheel chain train is used to drive the two sets of four-legs foot stands to make alternant forward rising and falling movement, and the stair climbing wheelchair is simple and reliable in structure, and is safe and convenient to use.

17 citations

Patent
10 Jan 2005
TL;DR: In this article, a vehicle uses horizontal and vertical extending and retracting rods to pass over an obstacle or ascend or descend stairs, respectively, to enable the ascending or descending of stairs without tilting while supporting a user or a load on a frame.
Abstract: A transportation vehicle and methods for transporting persons, robots or cargo, and more particularly motorized vehicles, and methods for transporting over surfaces, including surfaces such as floors, roads, paths and sidewalks, and surfaces having obstacles or inclined surfaces and for enabling the ascending or descending of stairs without tilting while supporting a user or a load on a frame. The vehicle uses horizontal extending and retracting rods and vertical extending and retracting rods to pass over an obstacle or ascend or descend stairs. The horizontal extending and retracting rods are used as mechanisms to move the first set of ground contacting modules located to the fore of the vehicle or the last set of ground contacting modules located to the aft of the vehicle in a fore-aft plane to pass over an obstacle or to position the first set or last set of ground contacting modules upon a stair to be used for ascending and descending stairs. The vertical extending and retracting rods are used to raise or lower the frame, to raise or lower individual ground contracting members and to keep the vehicle stable.

17 citations

Patent
12 Feb 2014
TL;DR: In this article, a planetary multi-wheel carrier stair climbing vehicle is described, where a small wheel is arranged at each point of each multi-wheeled carrier which serves as the wheel; a planetary wheel system is additionally arranged on each planetary multiwheel carrier; the small wheels comprise one way wheels and omnidirectional wheels.
Abstract: The invention discloses a planetary multi-wheel carrier stair climbing vehicle. The revolution of wheel carriers and the rotation of small wheels can be automatically switched, so that the vehicle can stably and quickly climb stairs. Core contents are that driving wheels are required to be planetary multi-wheel carriers, non-driving wheels are required to be multi-wheel carriers, and the driving wheels and the non-driving wheels have the same point number, wherein a small wheel is arranged at each point of each multi-wheel carrier which serves as the wheel; a planetary wheel system is additionally arranged on each planetary multi-wheel carrier; the small wheels comprise one-way wheels and omnidirectional wheels. Each multi-wheel carrier of the planetary multi-wheel carrier stair climbing vehicle comprises three wheels, four wheels, five wheels or six wheels. A dour-wheel dual-power four-driven six-wheel carrier stair climbing vehicle is shown in a drawing, wherein small bevel gears are driven through a differential spider by two motors, large bevel gears are driven by the small bevel gears, and are matched with chain wheels, and four wheels are driven by the chain wheels respectively. According to stair climbing principles, 1, when the vehicle runs on a level road, planetary wheels and the small wheels rotate; 2, when the vehicle climbs the stairs, the small wheels rotate to get close to a step, and then the multi-wheel carriers revolve; 3, when the vehicle goes downstairs, the small wheels rotate until one small wheel is suspended, the wheel carriers revolve, and after the suspended small wheel is landed, the wheel carriers continue revolving.

17 citations

Patent
17 May 1963

17 citations

Journal ArticleDOI
TL;DR: The results suggested that the muscle mass of the knee extensor muscle group and also the psoas major muscle could be a factor in potential capacity in stair ascent/descent by humans.
Abstract: The relationship between muscle cross-sectional area (CSA) of the hip joint and lower extremities and speed of stair ascent/descent was investigated in a sample of 127 elderly women (ages: 60–70 years old). The participants performed ascent and descent of stairs with 12 steps for which the speeds for ascent and descent separately from video film were calculated. The ascent speed significantly correlated with CSAs of knee extensor (r = .21, p<.05) and psoas major muscle (r = .25, p<.01), which were assessed by magnetic resonance imaging. The descent speed also correlated with CSAs of the same muscle groups (with knee extensor: r = .20, p<.05, with m. psoas major: r = .18, p<.05). The rest of the muscle groups were not related to the ascent/descent speeds of the step. These results suggested that the muscle mass of the knee extensor muscle group and also the psoas major muscle could be a factor in potential capacity in stair ascent/descent by humans.

17 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202344
2022121
202165
202090
2019129
201896