| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain unloader capable of smoothly performing the elongating and contracting actions of its curled cord by using the curled cord as a harness for turning on electricity, while aiming at the small-sizing of the harness capable of elongating and contracting. SOLUTION: The grain unloader is provided by having the curled cord constituting the harness 30, equipped with a coil like wound wire part 32 freely elongating and contracting and a linear straight line part 31 constituted as not capable of elongating and contracting, and installing the curl cord as extended over from a base end side conveying tube 20 to a tip end side conveying tube 21, including an elongation and contraction-guiding means 40 for guiding so that the elongating and contracting action of the curl cord is performed along the elongating and contracting direction of the tip end side conveying tube 21, and in the elongation and contraction-guiding means 40, including a bend-limiting part 42 for limiting the bending of central axis of the wound wire part 32 in a direction of crossing to the elongating and contracting direction of the tip end side conveying tube 21 and an elongation and contraction-limiting part 41 for suppressing the position change in the elongating and contracting direction of the wound wire part 32 at the end part in the upstream side of the grain-conveying direction. COPYRIGHT: (C)2011,JPO&INPIT |
