Patent ID: 6089480
Filing Date: 2000-07-18
Classification: B02C

Abstract:
A striker plate assembly for an impact rotor comprising;a striker plate having a rear face for attachment to a rotor and a front working face, said working face including a longitudinal recess,at least one striker bit configured to be received in said recess and including front and rear surfaces in the direction of rotation,connector means extending through said bit and said striker plate for clamping said bit in said recess,at least one mating protrusion and recess on the rear surface of said bit and said striker plate recess immediately surrounding said connector means for positively positioning said bit in said recess while permitting removal of said bit from the striker without relative lateral movement,said bit being generally rectangular in longitudinal cross section and symmetrical about a central longitudinal plane at right angles to its rear surface,said bit having opposed longitudinally extending cutting faces on its front surface inclined outwardly therefrom in the direction of rotation and terminating in first and second cutting edges, said cutting faces and said cutting edges extending the full length of said bit,whereby said bit may be removed by lifting the same away from said recess, rotated 180.degree. and then replaced to alternately utilize said first and second cutting edges.