Stair climbing

About: Stair climbing is a research topic. Over the lifetime, 1610 publications have been published within this topic receiving 30504 citations.

Four-wheel driven stair climbing mobile robot

Abstract: The invention discloses a four-wheel driven stair climbing mobile robot. The four-wheel driven stair climbing mobile robot comprises servo motors, wheel sets, gears, toothed belts, a mechanical body, a control system and an infrared device, wherein an output shaft of each servo motor is connected with a gear shaft through a coupler; gears on each wheel set are mutually engaged for transmitting motion; two corresponding front wheels and two corresponding rear wheels are connected through levers; and the rear wheels can move on the corresponding toothed belt. Each wheel set is driven by the corresponding servo motor to rotate so as to realize the functions of going forward, backing up, surmounting obstacles, climbing stairs and the like. When the robot climbs stairs, the front half part of the robot arrives at the step of the upper layer, after front wheels pass across the step, the gravity of the robot is increased, the platform of the rear half part keeps self gravity through the transmission of the corresponding toothed belts, so that unstable situation is avoided; and finally, the robot passes across the step to realize the function of climbing stairs. The four-wheel driven stair climbing mobile robot has the advantages of being simple in structure, high in cost performance, high in practicability, fast to move, and the like.

Stair climbing device for wheelchair, has support device operated by sensor signal for preventing tipping of stair climbing device

Abstract: The stair climbing device (1) is operated by the seated wheelchair user, with a sensor device detecting possible tipping of the stair climbing device, e.g. by detecting the retaining force exerted by the wheelchair user, for providing a signal used for movement of a support device (40) between a rest position and an operative position.

Robot cleaner stair climbing device

Abstract: A robot cleaner stair climbing device comprises a main climbing mechanism, an attached climbing mechanism, a main frame, an attached frame, a bottom plate, a blocking device, a turning mechanism, a detector, a storage battery, and a control system. Track-laying climbing mechanisms are installed on the two sides of the main frame and the attached frame. The attached frame is connected with fore-end of the main frame in a hinged mode. A bottom plate is installed under the middle of the main frame, and a baffle is installed on the rear end of the bottom plate in a hinged mode. When the robot is going upstairs or downstairs, the robot and the stair climbing device meet at the top of the stairs or the bottom of the stairs. The baffle is lowered to the ground, the robot climbs up the bottom plate through the baffle, and then the baffle turns up and stands upright to block the robot. After going upstairs and going downstairs, the baffle is lowered to the ground, and the robot crawls through the baffle to the floor. According to the situation of going upstairs and going downstairs, the attached climbing mechanism is capable of changing the angles between the main climbing mechanisms. The stair climbing device and the robot are contacted by wireless. When the device is not in use, the attached climbing mechanism turns up and stands upright against to the wall, occupying a small space. A problem that the robot cleaner cannot go upstairs or go downstairs is solved.

Stair climbing system

Abstract: A stair climbing system for moving objects either up or down stairs that entails placing a base and roller assembly in a first position on the stairs, rolling the object over the stationary base and roller assembly, and then advancing the base and roller assembly from a trailing position under the object to an advanced position to continue movement of the object up or down stairs. The base and roller assembly base includes first and second side panels supporting a roller, each having surfaces reacting against the stair step and the stair riser to prevent tilting of the base and roller assembly under the load of the object.

Low-cost active knee orthoses – a systematic evaluation

Abstract: Abstract The aging of humans induces muscle weakness. Muscle weakness results the inability to climb stairs or stand up from a chair and thus, is one of the first steps towards elderly having a less autonomous and self-sufficient life. Therefore, an accessible active knee orthosis, which especially supports these movements would be of great assistance. Recent research projects have focused on feasibility, perfection of motion control and imitation of human movement. For active knee orthoses to be accessible it must be affordable. Hence, this paper systematically evaluates the current research projects around active knee orthosis and discuss the possibilities of implementing a lowcost active knee orthosis.