Patent ID: 8007389
Filing Date: 2011-08-30
Classification: G01R

Abstract:
1. A heavy object turning apparatus having a turning arm which is connected to a heavy object and is turned around a pivot axis, and a drive unit adapted to drive said turning arm to turn, said drive unit having a stationary portion, a rotation input portion, a rotation output portion having an orthogonal flat surface perpendicular to the pivot axis, and a planetary gear type reduction gear having a pair of roller bearings disposed between the stationary portion and the rotation output portion, an orthogonal axis reduction gear configured so that an output axis is on an axis of said planetary gear type reduction gear and that an input shaft is perpendicular to the output axis, and a motor configured so that a motor shaft is disposed in parallel to the orthogonal flat surface, said drive unit fixed to a support base and said support base being non-rotatably fixed to a stand, the support base including an attaching surface fixed to the stand such that the attaching surface is perpendicular to the motor shaft; an apparatus body disposed on a first side of the stand, the heavy object adapted to be turned nearly one hundred eighty degrees (180°) between a first position wherein the heavy object is located at a first side proximate the apparatus body and a second position wherein the heavy object is located at a second side of the stand, the second side being opposite the first side, and said turning arm has a first flat surface connected to the orthogonal flat surface of said rotation output portion and a second flat surface perpendicular to the first flat surface which is connected to said heavy object and is placed to a heavy object side and that said turning arm and said drive unit are disposed in the width of the heavy object in a direction of the pivot axis around which said heavy object is turned.