Patent ID: 9212972
Filing Date: 2015-12-15
Classification: G01M

Abstract:
1. A chassis dynamometer comprising: a roller on which a wheel of a test vehicle is rested through a roller opening formed in a pit cover; a roller opening open/close mechanism that opens and closes the roller opening; and a roller ascent/descent operation mechanism that operates the roller to ascend and descend, wherein the roller opening open/close mechanism comprises a roller opening open/close plate that is overlaid on a side of a lower surface of the pit cover and operated to open and close the roller opening, an open/close plate driving section that moves the roller opening open/close plate to a roller opening closed position or a roller opening opened position, an open/close plate supporting guide that guides the roller opening open/close plate and supports the roller opening open/close plate in a height position of the pit cover in the roller opening closed position.