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US 10,590,632 B2Granted
System for securing bits against rotation
AssigneeCaterpillar Inc.
InventorsDavid B. Parzynski, Thomas M. Congdon
Life of this patent
Estimating the term…
Abstract
A system for use in securing bits against rotation in a motor grader may include a bit, with the bit having a shank. The shank may include a locking portion. The system may include an adapter board including a hole configured to receive the shank of the bit. The system may also include an anti-rotation plate configured to engage the locking portion of the shank of the bit such that the anti-rotation plate constrains the bit against rotation with respect to the adapter board.
Claims10
A bit securing system comprising:
- an adapter board including a hole;
- a bit including a shank, the shank including a circular portion and a locking portion, the circular portion configured to be received within the hole of the adapter board, the locking portion including a non-circular cross-sectional shape;
- the bit includes a shoulder;
- the shank of the bit protrudes from the shoulder of the bit;
- the adapter board includes a lower surface and an upper surface, and the hole of the adapter board extends from the lower surface to the upper surface;
- and
- the circular portion of the shank is configured to be removably received within the hole of the adapter board with the shoulder of the bit contacting the lower surface of the adapter board such that the locking portion of the shank protrudes from the upper surface of the adapter board;
- and
- a first anti-rotation plate configured to engage the non-circular cross-sectional shape of the locking portion such that the first anti-rotation plate constrains the shank against rotation with respect to the adapter board.
6 more elements
Dependencies are inferred from the claim text.