Patent ID: 7310864
Filing Date: 2007-12-25
Classification: B25B,Y10T

Abstract:
1. A tool for performing maintenance on the endless tracks of a tracked vehicle, comprising: a first elongated tubular member having a first handle end and an opposite second distal end; a bore extending through the first tubular member from the first handle end to the opposite second distal end; a thrust bearing disposed within the bore at the first handle end; a second elongated tubular member disposed within the bore of the first tubular member for linear slidable extension and retraction relative to the first tubular member; the second elongated tubular member including an inner end that is enclosed within the bore of the first tubular member, an opposite outer end that projects outwardly from the second distal end of the first tubular member, and an internal second bore coextensive in length with the second tubular member and coaxial with the bore of the first tubular member; a threaded nut fixedly mounted within the second bore of the second tubular member adjacent the inner end thereof; a rotatable threaded rod mounted at the first handle end of the first tubular member and coaxially extending through the bore of the first tubular member and the internal second bore of the second tubular member for engagement with the fixedly mounted threaded nut; a handle mounted at the first handle end of the first tubular member being interconnected to the threaded rod and capable of clockwise rotation and counterclockwise rotation relative to the coaxial alignment of the bore of the first tubular member and the internal second bore of the second tubular member; a pair of track bar hooks with one track bar hook mounted to the first tubular member and the other track bar hook mounted to the second tubular member; and rotation of the handle in the clockwise direction causes the rotation of the threaded rod against the nut thereby resulting in the telescopic retraction of the second tubular member within the first tubular member and the track bar hooks to decrease in distance from each other and rotation of the handle in the counterclockwise direction causes the rotation of the threaded rod against the nut in the opposite direction thereby resulting in the telescopic extension of the second tubular member from the first tubular member and the track bar hooks to be drawn away from each other.