초록 ▼

The rotation of the inner press roller 16 is synchronized with the rotation of the printing drum 10 by the gear train including a gear wheel 22 coaxial with the printing drum, a gear wheel 24 meshing with the gear wheel 22 and rotatably supported by an arm 26 swingable about the central axis of the

The rotation of the inner press roller 16 is synchronized with the rotation of the printing drum 10 by the gear train including a gear wheel 22 coaxial with the printing drum, a gear wheel 24 meshing with the gear wheel 22 and rotatably supported by an arm 26 swingable about the central axis of the printing drum, and a gear wheel 28 meshing with the gear wheel 24 and coaxially connected with the inner press roller 16 to rotate therewith and rotatably supported by an arm 18 swingable about a pivot axis Ob parallel with and distant from the central axis Oa of the printing drum. In the gear train, a brake 86 or 90 is provided for braking the gear wheel 28 or 24 to control the biasing out operation of the inner press roller 12 against the circumferential wall 12 of the printing drum. The braking action may be temporarily increased during a starting up of the printing operation. The distance between the axes of the gear wheels 24 and 28 may desirably be restricted not to increase beyond a predetermined distance.

대표청구항 ▼

A method of controlling a rotary stencil printer including brake means for braking rotation of at least one gear wheel disposed on a supporting arm so that a reaction torque generated by actuation of the brake means generates a biasing force to bias an inner press roller in a radially outwardly dire

A method of controlling a rotary stencil printer including brake means for braking rotation of at least one gear wheel disposed on a supporting arm so that a reaction torque generated by actuation of the brake means generates a biasing force to bias an inner press roller in a radially outwardly direction of a printing drum, comprising the steps of: applying a first braking force to the at least one gear wheel during a start-up phase of a printing operation; and applying a second braking force to the at least one gear wheel after the start-up phase of the printing operation whereby the second braking force is less than the first braking force.