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US 11,535,023 B2Granted
Doctor blade, doctor blade chamber, and printing unit equipped therewith
AssigneeBobst Lyon
InventorRene Bazin
Life of this patent
Estimating the term…
Abstract
A doctor blade, intended for a doctor blade chamber (6) for a flexography printing unit (1) equipped with a screened cylinder (4), presents in the form of a rectangular blade, with a functional longitudinal side (34) of which a longitudinal edge is capable of making contact with the screened cylinder (4), a longitudinal fastening side (33) and two lateral sides (36, 37). The doctor blade comprises at least one opening located towards the functional longitudinal side (34) and towards the first of the two lateral sides (36, 37).
Claims20
A doctor blade chamber comprising:
- a main body;
- a fastening clamp;
- a seal gasket, the seal gasket being placed in a cavity of the main body of the doctor blade chamber;
- and
- a doctor blade for use with a screened cylinder, the doctor blade comprising a blade, with a functional longitudinal side, a longitudinal fastening side, and two lateral sides, the functional longitudinal side including a longitudinal edge to make contact with the screened cylinder,
- wherein the doctor blade includes at least one opening located towards the functional longitudinal side and towards a first of the two lateral sides, and
- wherein the doctor blade is positioned on the seal gasket, so that one interior side of the at least one opening is level with an interior edge of the fastening clamp for the doctor blade, and so that a lateral side of the at least one opening is level with an exterior lateral face of the seal gasket.
4 more elements
A doctor blade chamber comprising:
- a main body forming a cavity;
- a seal provided on the main body, and including an interior part facing the cavity and an exterior part facing away from the cavity toward a longitudinal end of the main body;
- an end part provided at the longitudinal end of the main body on an opposite side of the seal from the cavity;
- and
- a doctor blade having a first portion extending from the cavity to the seal and ending between the interior part and the end part, and a second portion extending from the cavity to the end part.
2 more elements
Dependencies are inferred from the claim text.