Patent ID: 8240284
Filing Date: 2012-08-14
Classification: F01L

Abstract:
1. A rocker arm to be driven by a cam, the rocker arm comprising: a roller configured to rotate and receive a load applied from the cam in accordance with a rotation of the cam; two sidewalls configured to support the roller, the two sidewalls being a folded metal plate; and a guiding mechanism configured to reduce a wobbling motion of the roller with respect to the cam, the guiding mechanism including two guiding members, wherein a height of at least one of the guiding members relative to an axis of rotation of the roller is greater than a height of at least one of the sidewalls relative to the axis of rotation; wherein the two guiding members comprise two washers, a first one of the two washers being disposed between a first one of the two sidewalls and the roller, a second one of the two washers being disposed between a second one of the two sidewalls and the roller; wherein an outside diameter of each of the two washers is larger than an outside diameter of the roller; and wherein the cam is disposed between the two washers.