| 摘要 |
PURPOSE:To remove excessive load from a drive unit, by composing a titled device to house the drive unit and to suspend it from a guide plate, of the primary bracket, having a set of rollers which consists of four rollers, and the secondary bracket which is suspended by a hinge pin. CONSTITUTION:The primary bracket 12 pinches a guide plate 14 by a total of four rollers, that is, the right and the left, two rollers 15 and 16, and the other two rollers 17 and 18, in order to prevent useless swing of a drive unit. The secondary bracket is composed of a box l1a to house the drive unit 11, a member 21a to suspend the box 11a, and hinge 22 which stretches forward from the box 11a, and the end of a hinge 22 is forked into two branches, to each end of which a roller 23 is provided. The rollers 23 prevent the drive unit 11 from rockable movement from side to side in the horizontal direction. With such an arrangement, a retractable soot blower without excessive load imposed on the drive unit can be obtained. |
