Holder for a roller slitting knife
AssigneeDienes Werke fur Maschinenteile GmbH & Co. KG
InventorPeter Wingen
Life of this patent
Estimating the term…
Abstract
A holder for a roller slitting knife is provided comprising a first selectively-operable piston assembly including a first piston and a first piston cylinder housing. The first piston has a non-circular, cross-sectional portion preferably configured as a curved triangle of constant diameter received in the mating bore of the housing. A second selectively-operable piston assembly including a second piston and a second piston housing is mounted to the first assembly and disposed for operation in a direction transverse to operation of the first piston assembly. A roller slitting knife is mounted to the second piston assembly whereby the knife is selectively positioned for operation upon selective operation of the first and second piston assemblies.
Claims12
A holder for a roller slitting knife comprising:
- a first selectively-operable piston assembly including a first piston rod and a first cylinder housing, said first piston rod having a reduced diameter end portion to which a non-circular, cross-sectional portion is selectively secured, said non-circular portion being received in a mating bore of said housing to prevent rotation of said first piston rod in said housing;
- a second selectively-operable piston assembly including a second piston rod and a second piston cylinder housing mounted to said first assembly and disposed for operation in a direction transverse to operation of said first piston assembly;
- and,
- a roller slitting knife mounted to said second piston assembly whereby said knife is selectively positioned for operation upon selective operation of said first and second piston assemblies wherein said non-circular cross-sectional portion is selectively disassociable from a remainder of said first piston rod whereby said first piston rod can be rotated by approximately 180.degree. to enable said knife to be converted from a right-handed attack to a left-handed attack.
In a holder for a roller slitting knife including a first piston assembly for selective operation in a first direction and a second piston assembly for selective operation in a second direction normal to said first direction, the improvement comprising a first piston rod of said first piston assembly including a reduced diameter end portion to which is secured a piston rod portion having a cross-sectional configuration of a curved triangle of constant diameter matably received in a mating cylinder housing to preclude rotational movement of said first piston assembly during operation of said holder wherein said piston rod portion is selectively disassociable from a remainder of said first piston rod whereby said knife can be converted from a right-handed attack to a left-handed attack.
A selectively movable cutting mechanism, comprising:
- a first selectively operable piston assembly including a first piston rod and a first cylinder housing, said first piston rod including a circular cross-sectional portion and a non-circular cross-sectional portion;
- a second selectively operable piston assembly including a second piston rod and a second piston cylinder housing in which said second piston rod is non-rotatably mounted, said second assembly being mounted to said first assembly and disposed for operation in a direction transverse to the operation of said first piston assembly;
- knife means for cutting material being secured to said second piston assembly;
- and
- locking means for selectively locking said non-circular cross-sectional portion to said first piston rod to prevent rotation of said first piston rod and hence said knife means wherein disengagement of said locking means enables the knife means to be rotated approximately 180.degree. thereby converting the knife means from a right-handed attack to a left-handed attack.
Dependencies are inferred from the claim text.