| 摘要 |
PURPOSE:To prevent a shaft from being bent and dispense with the mounting of a strengthening member, by using only one crosshead of increased strength to support the shaft at the central part. CONSTITUTION:Only one crosshead 10 of increased strength supports a shaft 16 at the central part in which the bending moment is the greatest, so that the shaft is not bent even if load acts to two hydraulic cylinders 6, 6 during the loading and unloading of a body 5. The two hydraulic cylinders 6, 6 and the crosshead 10 are coupled to each other in a swingable manner by pins 12, 12 so that no concentrated load acts to the shaft 16 and it is not bent even if a torsion is caused during the loading and unloading of the body 5, because the cylinders swing. |
