Integrated pivot pin lubricator
AssigneeDeere & Company
InventorsSteven J. Ditzler, Peter D. Zach, Jonathan R. Hunt
Life of this patent
Estimating the term…
Abstract
An apparatus for lubrication of a hinge on a work machine. The hinge includes a first member such as a first boom arm and a second member such as a second boom arm. The hinge further includes a pin hingedly linking the first and second members. The pin has a path therein having a first portion that extends axially. The hinge further includes a port in fluid communication with the path. The port is radially offset by a fixed distance and fixed orientation from the first portion within the pin.
Claims22
A hinge on a work machine comprising:
- a first member;
- a second member;
- a generally cylindrical pin hingedly linking the first and second members, the pin having a fluid path therein, the pin having a first portion of a fluid path that extends axially therein, the path having a second portion outside of the pin within a radially extending pin flag secured to an end face of the pin, and
- the pin flag further comprising a port in fluid communication with the second portion of the path and operable to couple to a fluid supply, the port being radially offset by a fixed distance and fixed orientation from the first portion.
A hinge lubrication apparatus including:
- a first hinge member,
- a second hinge member,
- a hinge pin operable to hingedly couple the first and second members, the hinge pin having a first lubrication path extending axially therein;
- a pin flag secured to an end face of the hinge pin, the pin flag having a second lubrication path extending radially from the first lubrication path;
- a lubricant supply path operable to supply lubricant to the first and second lubrication paths via a connection port fixed to the first hinge member that is in fluid communication with the first and second lubrication paths, the connection port being positioned such that connection thereto by the lubricant supply path is on an interior of the first hinge member.
A hinge pin comprising:
- a pin body having an internal lubrication path extending to an axial end face;
- a second planar body secured to the end face of the pin body having:
- a first port axially aligned and communicating with the lubrication path of the pin body;
- and
- a second port radially displaced relative to the first portion and the pin body;
- and
- an internal lubrication path that extends from the first port to the second port.
A hinge lubrication apparatus for a work machine comprising:
- a first hinge member including a lubrication port fixed thereto;
- a second hinge member adapted to couple to a work machine cab via the first hinge member;
- a hinge pin hingedly coupling the first and second members such that the first hinge member is moveable with respect to the second hinge member, the hinge pin comprising;
- a pin body;
- a radially extending planar body secured to an end face of the pin body;
- and an internal lubrication path comprising a first portion within the pin body, and a second portion defining a rigid path within the radially extending planar body and being fluidly connected to the lubrication port and the first portion at radially spaced points.
Dependencies are inferred from the claim text.