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US 2020/0346362 A1Published application
Planer head
AssigneeDk-Spec Inc.
InventorsGuillaume GRENIER, Antoine MCNEIL, Guillaume AUBÉ, Clermont LEVASSEUR
Life of this patent
Estimating the term…
Abstract
A device for processing wood and other material is described. A planer head, typically used in wood processing, has a cylindrical body which rotates around an axis and comprises one or multiple cutting knives. The knives are held in place by a knife holder. The knife holder is placed in the cylindrical body by insertion into holes in the cylindrical body and held in place through a fastening assembly comprised of a long and slender fastening member with a threaded end.
Claims30
A planer head comprising:
- a cylindrical body having a rotational axis, the cylindrical body including at least one knife pocket on the periphery of the body having a first wall, a second wall and a bottom wall, the cylindrical body further including at least one bore extending parallel to the rotational axis, and at least one hole extending between the bottom wall of the pocket and the at least one bore,
- at least one knife holder having a first wall, a second wall adjacent to the second wall of the knife pocket, a bottom wall, and at least one protrusion projecting away from the bottom wall of the at least one knife holder, the at least one protrusion being configured to engage the at least one hole of the cylindrical body and to partially extend into the bore, the knife holder being moveable in the knife pocket between a radially inward position and a radially outward position,
- at least one knife received in the knife pocket of the cylindrical body, the at least one knife having a first wall adjacent to the first wall of the at least one knife pocket, a second wall adjacent the first wall of the at least one knife holder and a cutting edge extending radially away from the knife pocket, and
- a fastening assembly for fastening the at least one knife holder to the cylindrical body, the fastening assembly including a longitudinal member and a fastening means, the longitudinal member being sized and shaped to fit within the bore of the cylindrical body and including a first end, a second end and at least one slot located between the first end and the second end, the at least one slot being shaped to interact with the at least one protrusion of the knife holder extending in the bore of the cylindrical body, the fastening means of the fastening assembly engaging the first end of the longitudinal member to force the longitudinal member from a released position toward a locked position, wherein when the longitudinal member is forced from the released position toward the locked position, the at least one slot of the longitudinal member engages the at least one protrusion of the knife holder to urge movement of knife holder from the radially inward position to the radially outward position, wherein the knife holder in the radially outward position secures the at least one knife to the cylindrical body.
1 more element
A kit of a planer head assembly comprising:
- a cylindrical body having a rotational axis, the cylindrical body including at least one knife pocket on the periphery of the body having a first wall, a second wall and a bottom wall, the cylindrical body further including at least one bore extending parallel to the rotational axis, and at least one hole extending between the bottom wall of the pocket and the at least one bore,
- at least one knife holder having a first wall, a second wall adjacent to the second wall of the knife pocket, a bottom wall, and at least one protrusion projecting away from the bottom wall of the at least one knife holder, the at least one protrusion being configured to engage the at least one hole of the cylindrical body and to partially extend into the bore, the knife holder being moveable in the knife pocket between a radially inward position and a radially outward position,
- at least one knife received in the knife pocket of the cylindrical body, the at least one knife having a first wall adjacent to the first wall of the at least one knife pocket, a second wall adjacent the first wall of the at least one knife holder and a cutting edge extending radially away from the knife pocket, and
- a fastening assembly for fastening the at least one knife holder to the cylindrical body, the fastening assembly including a longitudinal member and a fastening means, the longitudinal member being sized and shaped to fit within the bore of the cylindrical body and including a first end, a second end and at least one slot located between the first end and the second end, the at least one slot being shaped to interact with the at least one protrusion of the knife holder extending in the bore of the cylindrical body, the fastening means of the fastening assembly engaging the first end of the longitudinal member to force the longitudinal member from a released position toward a locked position, wherein when the longitudinal member is forced from the released position toward the locked position, the at least one slot of the longitudinal member engages the at least one protrusion of the knife holder to urge movement of knife holder from the radially inward position to the radially outward position, wherein the knife holder in the radially outward position secures the at least one knife to the cylindrical body.
1 more element
Dependencies are inferred from the claim text.