Apparatus for facilitating pivotal movement of implements in machines

A linkage assembly for manipulating an implement relative to a frame of a machine, the linkage assembly comprising:

• an arm adapted to be pivotably coupled to the implement;
• an actuator movably coupled to the arm;
• an apparatus pivotably coupled to the actuator and adapted to be pivotably coupled with the implement to facilitate a pivotal movement of the implement relative to the arm based on an actuating action of the actuator, the apparatus including:
• a first link including a first end segment, a second end segment, and an intermediate segment extending therebetween, each of the first end segment and the second end segment including an eyelet portion, and a stub portion extending integrally and contiguously from the eyelet portion,
• a second link identical to the first link, the second link being spaced apart and disposed parallelly relative to the first link, and
• a support structure to support the first link with the second link,
• wherein the intermediate segment is coupled to the stub portion of the first end segment and to the stub portion of the second end segment, and
• wherein the support structure includes:
• a beam disposed between the first link and the second link,
• a first sleeve coupled to the beam and disposed around the first link with a first clearance being defined with the first link, and
• a second sleeve coupled to the beam and disposed around the second link with a second clearance being defined with the second link.

A machine, comprising:

• a frame;
• an arm movably coupled relative to the frame;
• an implement pivotably coupled to the arm, and adapted to perform a work function;
• an actuator movably coupled to the arm, and adapted to controllably manipulate the implement relative to the arm;
• an apparatus pivotably coupled to the actuator and to the implement to facilitate a pivotal movement of the implement relative to the arm based on an actuating action of the actuator, the apparatus including:
• at least two links parallelly disposed and spaced apart from each other, each link including a first end segment, a second end segment, and an intermediate segment extending therebetween, each of the first end segment and the second end segment including an eyelet portion, and a stub portion extending integrally and contiguously from the eyelet portion,
• a support structure for supporting the at least two links,
• wherein, for each said link, the intermediate segment is coupled to the stub portion of the first end segment and to the stub portion of the second end segment by groove welding, and
• wherein the support structure includes:
• a beam disposed between the at least two links,
• a first sleeve coupled to the beam and disposed around one of the at least two links with a first clearance being defined with the one of the at least two links, and
• a second sleeve coupled to the beam and disposed around the other of the at least two links with a second clearance being defined with the other of the at least two links.