Stripper for a roller cleaning device

Claim 2

In combination with a printing machine having a roller (2, 8), the surface of which is to be cleaned or stripped, a stripping device for cleaning said roller (2, 8) comprising, in accordance with the invention, a support rail (5, 7) extending axially parallel to the roller (2, 8) to be cleaned; and a pressure hose (1, 6) secured to the rail with a surface thereof remote from the roller (2, 8) and extending axially along the roller, the pressure hose being expandable in cross section upon pressurization with a pressure fluid, and thereby engageable with the facing surface of the roller at a pressure which is essentially uniform over the axial length of the roller.

Claim 3

Stripping device according to claim 1, wherein the surface remote from the rail (5) carries at least one stripping rib or bead (3) extending parallel to the axis of the roller (2).

Claim 4

Stripping device according to claim 2, wherein the stripping rib (3) is fabricated integrally with the pressure hose (1).

Claim 5

The stripping device according to claim 2, wherein the stripping rib 83) and the pressure hose (1) and fabricated of different materials and are joined firmly to one another, for example by means of an adhesive.

Claim 6

Stripping device according to claim 1, wherein (FIG. 2) the pressure hose is a pre-set, or pre-formed profile hose having, in cross section, an inwardly extending or concave bulge, when in pressurized condition, said bulge, upon pressurization, snapping outwardly and engaging the facing surface of the roller.

Claim 7

Stripping device according to claim 5, wherein the surface remote from the rail (5) carries at least one stripping rib or bead (3) extending parallel to the axis of the roller (2).

Claim 8

Stripping device according to claim 6, wherein the stripping rib (3) is fabricated integrally with the pressure hose (1).

Claim 9

Stripping device according to claim 6, wherein the stripping rib (3) and the pressure hose (1) are fabricated of different materials and are joined firmly to one another, for example by means of an adhesive.

Claim 10

Stripping device according to claim 1, wherein (FIG. 1) the pressure hose, in cross section, is approximately oval, engaging said rail (5) with one major flat surface, and having another major flat surface facing the roller (2).

Claim 11

Stripping device according to claim 6, wherein the surface remote from the rail (5) carries at least one stripping rib or bead (3) extending parallel to the axis of the roller (2).

Claim 12

Stripping device according to claim 10, wherein the stripping rib (3) is fabricated integrally with the pressure hose (1).

Claim 13

Stripping device according to claim 10, wherein the stripping rib (3) and the pressure hose (1) are fabricated of different materials and are joined firmly to one another, for example by means of an adhesive.

Claim 14

In combination with a printing machine having a roller 82, 8), the surface of which tends to accumulate ink, which ink is to be cleaned or stripped off said surface, an ink cleaning or stripping device for cleaning the surface of said roller (2, 8) and stripping ink accumulated on said surface from said roller, comprising, in accordance with the invention, a support rail (5, 7) extending axially parallel to the roller (2, 8) to be cleaned; a pressure hose (1, 6) secured to the rail with a surface thereof remote from the roller (2, 8) and extending axially along the roller, the pressure hose being expandable in cross section upon pressurization with a pressure fluid, and thereby engageable with the facing surface of the roller at a pressure which is essentially uniform over the axial length of the roller.

Claim 15

In combination with a printing machine having a roller 82, 8), the surface of which tends to accumulate ink, which ink is to be cleaned or stripped off said surface, an ink cleaning or stripping device for cleaning the surface of said roller (2, 8) and stripping ink accumulated on said surface from said roller, comprising, in accordance with the invention, a support rail (5, 7) extending axially parallel to the roller (2, 8) to be cleaned; a pressure hose (1, 6) secured to the rail with a surface thereof remote from the roller (2, 8) and extending axially along the roller, the pressure hose being expandable in cross section upon pressurization with a pressure fluid, and thereby engageable with the facing surface of the roller at a pressure which is essentially uniform over the axial length of the roller.

Claim 16

Stripping device according to claim 13, wherein the surface remote from the rail (5) carries at least one stripping rib or bead (3)extending parallel to the axis of the roller (2).

Claim 17

Stripping device according to claim 13, wherein (FIG. 2) the pressure hose is a pre-set, or pre-formed profile hose having, in cross section, an inwardly extending or concave bulge, when in unpressurized condition, said bulge, upon pressurization, snapping outwardly and engaging the facing surface of the roller.