Self Greasing Pin
Publication Date: 2017-May-24
The IP.com Prior Art Database
Title: Self Greasing Pin
Description: As shown in the attached illustrations and described below, a pin with an internal lubricant reservoir and
arrangement that provides for an increased storage capacity and self‐lubricating, is disclosed.
Figure 1 illustrates a sectional view of a pin. For example, a pivot pin of a work tool used for an agricultural or construction task associated with an off‐road vehicle. Also shown in Figure 1 are various components and features of the pin that are used for adding and distributing a lubrication means, such as grease. As shown, the pin has a hollow center, which can be used as a tank or reservoir for the lubricant (such as grease). The reservoir has a moving side that is spring loaded to always be closing. When adding lubricant to the reservoir, or chamber, the reservoir gets filled and the lubricant flows to the distribution means, such as lubricating ducts. Once you stop adding the lubricant, the spring will start closing in order to release the lubricant gradually through the distribution means. The pin, or moving part, may have a ring or rings of some type (such as an O‐ring, lip ring, etc.) in order to prevent all the lubricant from coming out at once, and/or have a small orifice to regulate flow of the lubricant.
In certain conditions, you may desire to release the lubricant only when you reach certain positons with your mechanism. In addition, indicators or sensors may be arranged with the pin to show when they are required to be filled.
In the examples shown, a mechanical force is used to add the lubricant, however it is conceived that other means, such as an electrical actuator, may also be utilized to aid the movement and/or control the intervals of lubricating. Adjustment devices can also be built into the pin in order to increase or reduce the flow of the lubricant as needed.
In addition, the lubrication reservoir is not required to be included in the pin, it could also be arranged so that it is attached externally to a pin structure.
Figure 2 illustrates and describes a cross section of a prior art pin arrangement.
Figure 3 further illustrates and describes the pin arrangement of Figure 1.
Figures 4 and 5 illustrate ...