Supporting cutter assemblies for multiple grooving of pavement

Claim 2

In vehicular apparatus for multiple grooving of pavement, including a vehicle frame, support means carried by the frame and adapted to support a cutter assembly having a generally cylindrical cutter head, and means for rotating the cutter head to groove pavement in contact therewith, improved support means comprising a post carried by the vehicle frame, first pivot means mounted on the post and having a horizontal axis parallel to the axis of the cutter assembly, and extensible and retractable means pivotally interconnected at the opposite ends thereof to the post and the cutter assembly for extending and retracting to lower and raise the cutter assembly.

Claim 3

Pavement grooving apparatus according to claim 1, the assembly including second pivot means having a horizontal axis perpendicular to the axis of the cutter head, the cutter head being carried by the latter pivot means for tilting thereabout.

Claim 4

Pavement grooving apparatus according to claim 2, including at the respective ends of the cutter assembly adjustable depth-of-cut means mounted on the support means and adapted to ride in contact with the pavement surface at a level variable from that of the peripheral extent of the blades at their lowermost edge.

Claim 5

In vehicular apparatus for multiple grooving of pavement, including a vehicle frame, support means carried by the frame and adapted to support a cutter assembly having a generally cylindrical cutter head, and means for rotating the cutter head to groove pavement in contact therewith, improved depth-of-cut means comprising at and surrounding but spaced radially from the respective ends of the cutter head a wheel mounted on the support means to ride in contact with the pavement at a level variable from that of the peripheral extent of the blades at their lowermost edge, and means so mounting the wheel.

Claim 6

In vehicular apparatus for multiple grooving of pavement, including a vehicle frame, support means carried by the frame and adapted to support a cutter assembly having a generally cylindrical cutter head, and means for rotating the cutter head to groove pavement in contact therewith, improved depth-of-cut means comprising at and surrounding but spaced radially from the respective ends of the cutter head a wheel mounted on the support means to ride in contact with the pavement at a level variable from that of the peripheral extent of the blades at their lowermost edge, and means so mounting the wheel.

Claim 7

Pavement grooving apparatus according to claim 4, wherein the mounting means for the depth wheels includes a horizontal pivot parallel but eccentric to the axis, a plate supported thereon for limited adjustment thereabout, bearing means on the plate for mounting the wheel rotatably, and means for securing the plate in any position of adjustment to fix the level of the wheel and thereby the level of the peripheral extent of the blades at their lowermost edge.

Claim 8

In vehicular apparatus for multiple grooving of pavement, including a vehicle frame, support means carried by the frame and adapted to support a cutter assembly having a generally cylindrical cutter head, and means for rotating the cutter assembly to groove pavement in contact therewith, improved support means comprising a post carried by the vehicle frame, first pivot means mounted on the post and having a horizontal axis parallel to the axis of the cutter assembly, means interconnecting the cutter assembly to the pivot means for raising and lowering thereof about the horizontal axis, extensible and retractable means interconnected at the opposite ends thereof to the post and the cutter assembly for extending and retracting to lower and raise the cutter assembly; an improved cutter head comprising a cylindrical arbor, a peripheral stop on the arbor at a location intermediate its ends, a plurality of removable cutting blades fitting on the arbor at each side of the stop, a plurality of removable spacers fitting on the arbor, each pair of adjacent blades at either side of the stop being separated the width of the stop by at least one such spacer intervening therebetween; and improved depth-of-cut means comprising at the respective ends of the cutter assembly a wheel mounted on the support means to ride in contact with the pavement at a level variable from that of the peripheral extent of the blades at their lowermost edge, and means so mounting the wheel and including a horizontal pivot parallel but eccentric to the axis, a plate supported thereon for limited adjustment thereabout, bearing means on the plate for mounting the wheel rotatably, and means for securing the plate in any position of adjustment to fix the level of the wheel and thereby the level of the peripheral extent of the blades at their lowermost edge.

Claim 9

In vehicular apparatus for multiple grooving of pavement, including a vehicle frame, support means carried by the frame and adapted to support a cutter assembly having a generally cylindrical cutter head, and means for rotating the cutter assembly to groove pavement in contact therewith, improved support means comprising a post carried by the vehicle frame, first pivot means mounted on the post and having a horizontal axis parallel to the axis of the cutter assembly, means interconnecting the cutter assembly to the pivot means for raising and lowering thereof about the horizontal axis, extensible and retractable means interconnected at the opposite ends thereof to the post and the cutter assembly for extending and retracting to lower and raise the cutter assembly; an improved cutter head comprising a cylindrical arbor, a peripheral stop on the arbor at a location intermediate its ends, a plurality of removable cutting blades fitting on the arbor at each side of the stop, a plurality of removable spacers fitting on the arbor, each pair of adjacent blades at either side of the stop being separated the width of the stop by at least one such spacer intervening therebetween; and improved depth-of-cut means comprising at the respective ends of the cutter assembly a wheel mounted on the support means to ride in contact with the pavement at a level variable from that of the peripheral extent of the blades at their lowermost edge, and means so mounting the wheel and including a horizontal pivot parallel but eccentric to the axis, a plate supported thereon for limited adjustment thereabout, bearing means on the plate for mounting the wheel rotatably, and means for securing the plate in any position of adjustment to fix the level of the wheel and thereby the level of the peripheral extent of the blades at their lowermost edge.

Claim 10

Pavement grooving apparatus according to claim 6, including an improved cutter head comprising a cylindrical arbor, a peripheral stop on the arbor at a location intermediate its ends, a plurality of removable cutting blades fitting on the arbor at each side of the stop, and a plurality of removable spacers fitting on the arbor, each pair of adjacent blades at either side of the stop being separated the width of the stop by at least one such spacer intervening therebetween.

Claim 11

Pavement grooving apparatus according to claim 6, the cutter assembly including second pivot means having a horizontal axis perpendicular to the axis of the cutter, the cutter being carried by the pivot means for tilting thereabout.

Claim 12

PavEment grooving apparatus according to claim 6, wherein the depth wheels are open centrally to accommodate an axle shaft protruding from the cutter head.

Claim 13

Adjustable depth-of-cut means for rotatable blades extending from the surface of a cutter head of a height-adjustable cutter assembly in pavement grooving apparatus comprising an open-centered depth wheel exceeded in diameter by the cutter blades but exceeding that of the head surface and surrounding the axis of rotation of the cutter head adjacent an end of the cutter head, means mounting the wheel eccentrically relative to the axis, and means for adjusting the degree of eccentricity thereof and thereby determining the depth of cutter penetration into pavement when the wheel is contiguous therewith.

Claim 14

Adjustable depth-of-cut means for rotatable blades extending from the surface of a cutter head of a height-adjustable cutter assembly in pavement grooving apparatus comprising an open-centered depth wheel exceeded in diameter by the cutter blades but exceeding that of the head surface and surrounding the axis of rotation of the cutter head adjacent an end of the cutter head, means mounting the wheel eccentrically relative to the axis, and means for adjusting the degree of eccentricity thereof and thereby determining the depth of cutter penetration into pavement when the wheel is contiguous therewith.

Claim 15

Depth-of-cut means according to claim 10, wherein the depth wheel surrounds an end of the cutter head in spaced relationship therewith and spaced also from the nearest cutter blade.

Claim 16

Depth-of-cut means according to claim 10, in duplicate, located at opposite ends of the cutter assembly.

Claim 17

Depth-of-cut means according to claim 12, wherein the respective depth wheels surround the corresponding ends of the cutter head.