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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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Journal ArticleDOI
TL;DR: This study demonstrates how the intensity of an illusion can influence the height of foot clearance when ascending stairs, and constructed a model based on a contrast-sensitivity function using a Gaussian model that would fit the foot clearance with striped stairs for any individual.
Abstract: A fall can result in fractures, sequelae, or even death in the worst-case scenario. Falls often occur because people misjudge step height and do not lift their feet sufficiently. One strategy to combat this issue is the use of vertical stripes to make stairs appear taller than they really are, which can thus prevent underestimation of the real height. However, the appropriate size of the space between the stripes is different for everyone. This study demonstrates how the intensity of an illusion can influence the height of foot clearance when ascending stairs. We validate the feasibility of using a model for determining the striping that can be used to adapt the pattern to individual differences. We constructed the model based on a contrast-sensitivity function using a Gaussian model. In an experiment, we measured the location of the toe via motion capture as participants climbed stairs. As a result, the relationship between foot-clearance and the spatial frequency approximated the function described by the CSF, Contrast Sensitive Function. The coefficients of determination exceeded 0.9 for one participant, 0.8 for two participant and 0.6 for other two participants. We concluded that the model presented CSF would fit the foot clearance with striped stairs for any individual.

1 citations

Journal ArticleDOI
01 Dec 2019
TL;DR: A modified mechanical design with eight wheels providing pause-rest feature has been represented with the equations of pulling force, constraints of stair dimensions and climbing mechanism and the ‘House of Quality Diagram ‘(QFD)’ has been added to accomplish the vision of further market research and customer satisfaction.
Abstract: Abstract Most of the people living in developing or less developed countries have limited earning to provide somehow their basic needs and usual staff. Carrying goods is a regular task in life and several products have been invented to minimize efforts in this purpose. However, the price and features of most available products are out of the reach for the people of limited earnings. Stair climbing cart is very useful for those houses where a lift is not available. In this research, a modified mechanical design with eight wheels providing pause-rest feature has been represented with the equations of pulling force, constraints of stair dimensions and climbing mechanism. The ‘House of Quality Diagram ‘(QFD)’ has been added to accomplish the vision of further market research and customer satisfaction. The factor of safety and different types of stress have been determined for different types of loads and conditions. In addition, the details of the material with dimension, design and feasibility analysis have led this research to uniqueness.

1 citations

Patent
26 Mar 2014
TL;DR: In this article, a hand buggy capable of climbing stairs and carrying water buckets is described, and the hand buggy is equipped with three wheel sets capable of ascending stairs and three hand-pulled pull rods capable of descending stairs.
Abstract: The invention provides a hand buggy device capable of climbing stairs and carrying water buckets. The hand buggy device capable of climbing stairs and carrying water buckets comprises a base, hand buggy pull rods perpendicularly connected with the base, and a frame body fixed to the base and the hand buggy pull rods, and is characterized in that triangle wheel sets capable of climbing stairs are connected under the base, the frame body is formed by a curved surface framework connected with the base and the hand buggy pull rods, a water bucket fixing frame rear frame, and a movable door movably connected with the water bucket fixing frame rear frame through a door spindle in a combined surrounding mode, the movable door is provided with limiting holes, and limiting grooves opposite to the limiting holes are formed in the inner side of the water bucket fixing frame rear frame. The hand buggy device capable of climbing stairs and carrying water buckets changes an original water bucket stair climbing mode through carrying into a water bucket stair climbing mode through hand pulling, and achieves the purposes of reducing physical exhaustion of manual carrying and lowering the difficulty of carrying water buckets upstairs.

1 citations

Journal ArticleDOI
TL;DR: In this article , an electric-powered staircase climbing trolley was designed and built from locally sourced materials to transfer large goods up and down stairs in high-rise buildings and reduce the strain associated with lifting while on level ground and over a staircase.
Abstract: Buildings with staircases have grown significantly as a result of improvements in building or home structures, and the strain associated with carrying items cannot be ignored. High levels of strain are related to the movement of loads along staircases, particularly in high-rise buildings. In order to make it simple to transfer large goods up and down stairs, this project concentrated on designing and building an electric-powered staircase climbing trolley from locally sourced materials. Everyday needs in our society drive the necessity for such a system. This robotic trolley is also employed to reduce the strain associated with lifting while on level ground and over a staircase. Given this, the project aims to design, build, and test the functionality of an electric-powered stair climbing trolley that can transport items up and down the stairs as well as on flat surfaces and even rugged terrain. The trolley uses a triple interlink wheel configuration that makes it simple to move things. When comparing the designed and constructed motorized trolley machine established in this work to the hand trolley, whose performance efficiency ranges from 50% to 60% as explored in previous literature, the motorized trolley machine performed 87% more efficiently. Moving products up and down a staircase can potentially be solved with the help of a motorized trolley that was designed and manufactured specifically for this purpose.

1 citations


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