Patent ID: 7171875
Filing Date: 2007-02-06
Classification: B25G

Abstract:
1. A wrench comprising: a handle having an end; a head including a pivotal portion pivotably connected to the end of the handle, the pivotal portion of the head including first and second sides, first and second end portions and an intermediate portion between the first and second end portions, the intermediate portion including a toothed section having a plurality of teeth, with the first end portion extending from the first side towards but spaced from the second side, with the second end portion extending from the second side towards but spaced from the first side, with the toothed section being spaced from the first and second sides by the first and second end portions, with the first and second end portions each having a smooth arcurate outer surface section free of teeth, with the toothed section of the intermediate portion of the pivotal portion having a root circle located lower than the arcuate outer surface section of the respective end portion, and with the toothed section of the intermediate portion of the pivotal portion having a tip diameter circle located higher than the arcuate outer surface section of the respective end portion; and a retaining mechanism for releasably engaging with the teeth of the intermediate portion of the pivotal portion, allowing the head to be pivotally moved to a desired position relative to the handle and retaining the head in the desired position.