| 摘要 |
PURPOSE:To allow moving and running between two surfaces crossing while getting over obstacles and/or level differences by coupling at least two sets of attracting/running elements in series with rotatability and mutual distance variability wherein each attracting/running element is equipped with a suction element for wall surface and a running wheel partially provided ahead it in the advancing direction, and by pressing it with a pressing mechanism of leaf spring type or operational cylinder type. CONSTITUTION:Two sets of attracting/running elements 1 are coupled rotatably by a coupling shaft 9 in parallel with the wall surface 30, and each attracting/ running element 1 is pressed to the wall surface 30 by the force of a leaf spring 11 etc. Two slide shafts 7, 8 in parallel with each other are held movable in the axial direction by two guides 5 installed on the oversurface of an attracting element 2 and located fixedly by two sets of locking mechanisms 6. This allows advancing while the front two wheels 4 are rolling even though it encounters any obstacle or level difference, which is thus got over, and this force of leaf spring 11 etc. ensures that the wall surface running is made smoothly and safely. |
