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Many serious accidents are reported about the manual window cleaning task, and it is needed to automate the task for the majority of windows having no special guide frames for window cleaning machines. This paper proposes a novel tethered window cleaning robot named a “SkyScraper-I” and discusses its design. The SkyScraper-I has the functions to approach all the windows located on one side of a building...
Foot mechanism of walking robots needs to adapt to rough terrain enough because the walking robot is requested to have the ability to walk stably on rugged ground. However, the foot mechanism of multi-leg walking robots have been often modeled as a point foot or a disc sole so far, and there is a problem that the robot can not fully use the sole area as a support polygon on rough terrain. To solve...
This paper presents a hand mechanism called "USE Hand (Under-Supporting Extension Hand)" for stable handling of tableware. For table setting work, development of a method of handling various tableware and consideration of safe coexistence with humans are required. We focused on the grasping method that supports tableware from beneath. In this method, if a plate can once be slid beneath tableware...
Now that mobile robots are getting tested more and more in challenging areas, difficulties in control, particularly when the robot cannot be seen, have appeared. In this research a mobile snake robot with actuated wheels is given the ability to sense its surroundings through its wheels by 3DOF force sensors, so that semi-autonomous control can be realized. This will simplify necessary operator commands...
In this article, the design principle of the leg driving mechanism to minimize energy loss and maximize output power is discussed. We will also introduce the gait control methods implemented in our previous quadruped walking robots. Finally, we will survey most of the prototype models of our quadruped walking robots.
Roller-walker is a leg-wheel hybrid mobile robot using a passive wheel equipped on the tip of each leg. The passive wheel can be transformed into sole mode by rotating ankle roll joints when roller-walker walks on rough terrain. This paper describes adaptation of characteristics of the propulsion by a leg trajectory in the case of wheeled locomotion. Firstly, the authors demonstrate that Roller-Walker...
High mobility and large payload capability are important for wall climbing robots. The authors have proposed a new robot system Anchor Climber that could achieve both of these two abilities. This robot system is composed of two or more child units and a parent unit. As child units, wall climbing robots Adhering Mobile Units (AM Units) have been developed by using the technique of internally-balanced...
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