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US 7,703,267 B2Granted
Mower blade coupler with enlarged head and projecting fins
AssigneeBuchanan Metal Forming, Inc.
InventorChristopher S. Tapper
Life of this patent
Estimating the term…
Abstract
A coupler comprising a shaft, an enlarged head, a proximal end of the shaft, and a journal for contacting and rotating in an annular bearing surface of a component for forming a pin connection with the component. In addition, the coupler includes a plurality of projecting fins projecting from the journal along axes generally parallel to the longitudinal axis of the shaft and are radially spaced around the journal.
Claims9
A blade assembly comprising:
- a blade having a mounting opening and first and second annular bearing surfaces extending around said mounting opening on first and second sides of said blade, respectively;
- and
- a coupler mounted in said opening, said coupler including a shaft, an enlarged head at one end of said shaft, and a journal with a greater transverse dimension than said shaft but smaller transverse dimension than said head, said shaft extending through said mounting opening with said journal located in said mounting opening, and said journal being captured in said mounting opening by said enlarged head, which bears on said first annular surface at said first side of said blade and by a plurality of outwardly extending projections formed at the terminal end of said journal, which project radially outward from said journal and bear on said second annular bearing surface on said second side of said blade to thereby capture the journal in said mounting opening and, further, not permit removal of said coupler from said blade without removal of said projections.
Dependencies are inferred from the claim text.