Patent ID: 8998559
Filing Date: 2015-04-07
Classification: B25J,E02F

Abstract:
1. A backhoe boom lock for engaging a hook member of a boom in a transport position, comprising: a pair of side members disposed parallel to one another along a substantially horizontal axis, each side member having a first end and a second end; a transverse member coupled between the first ends of the pair of side members, the transverse member configured to engage the hook member in the transport position; a pivot point defined near the second end of the pair of side members, the pair of side members being pivotally coupled with respect to the pivot point such that the boom lock pivots about the pivot point; a flange disposed between the second ends of the pair of side members, the flange disposed outwardly from the pivot point at an angle with respect to the horizontal axis; and a counterweight body integrally coupled to the second ends of the pair of side members, the center of gravity for the counterweight body being on the opposite side of the pivot point as the center of gravity for the pair of side members and the transverse member, the counterweight body moving the center of gravity for the boom lock closer to the pivot point and reducing the force required for manipulating the boom lock to engage and disengage the hook member.