| 摘要 |
PROBLEM TO BE SOLVED: To provide a telescopic cover device with low noise and excellent durability capable of smoothly traveling at high speed in an excellent state by enhancing linearity of connecting pins of a pantograph in the telescopic cover device and securing smooth advancing and retreating of the pantograph. SOLUTION: This telescopic cover device includes at least a plurality of cover bodies 10 and 20 and the pantograph 30 for connecting each of the cover bodies 10 and 20, and changes cover area by the cover bodies 10 and 20 by advancing and retreating the plurality of cover bodies 10 and 20 in a fixed direction together with the elongation and contraction of the pantograph 30. The pantograph 30 connects each link pin at a link center part as a link pin 32 used also as cover connection to each of the cover bodies 10 and 20. The link pins 32 used also as cover connection located at a distal end and a base end are connected to the cover bodies 10 and 20 so that the link pins 32 may not be slid and displaced. The link pins 32 used also as cover connection located at positions except the distal end and the base end are connected to the cover bodies 10 and 20 so that the link pins 32 may be slid and displaced in a direction perpendicular to the pantograph advancing and retreating direction. COPYRIGHT: (C)2011,JPO&INPIT
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