US 7,096,782 B2Granted

Driving apparatus in printing press

AssigneeKomori Corporation

InventorsKoichi Tobe, Hideaki Watanabe

Life of this patent

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Abstract

A driving apparatus in a printing press includes a plate cylinder driven by a printing press motor, an inking device drive-coupled to the plate cylinder, and a driving connecting/disconnecting mechanism. The mechanism connects and disconnects transmission of driving from the plate cylinder to the inking device, and includes first and second gears which are engageable with each other, supported rotatably, and constantly drive-coupled to one and the remaining one, respectively, of the plate cylinder and inking device. The second gear has a second engaging portion engageable with a plurality of first engaging portions of the first gear which have the same shape and are equidistantly arranged in a rotational direction of the first gear. When the first and second engaging portions engage, the plate cylinder and inking device are drive-coupled; when they are disengaged, they are disconnected. The number of first engaging portions is set on the basis of a value related to the first gear, so that when the plate cylinder reaches a phase identical to that where the first and second engaging portions disengage, the first and second engaging portions can engage regardless of a driving connection ratio of one of the plate cylinder and inking device to the first gear.

Claims5

Dependent claims

A driving apparatus in a printing press, including:

a first driven device driven by a driving source;
a second driven device drive-coupled to said first driven device;
and a driving connecting/disconnecting mechanism which connects and disconnects transmission of driving from said first driven device to said second driven device, said driving connecting/disconnecting mechanism including a first engaging member supported rotatably and constantly drive-coupled to one of said first and second driven devices, said first engaging member having a plurality of teeth formed on an outer surface thereof and drive-coupled to one of said first and second driven devices, and a plurality of first engaging portions which rotate together with said teeth, and a second engaging member supported rotatably, constantly drive-coupled to the remaining one of said first and second driven devices, and engageable with said first engaging member, said second engaging member having a second engaging portion engageable with said first engaging portions, wherein said first engaging portions have the same shape and are equidistantly arranged in a rotational direction of said first engaging member, when said first and second engaging portions engage, said first and second driven devices are drive-coupled, and when said first and second engaging portions disengage, drive coupling of said first and second driven devices is disconnected, and the number of said first engaging portions is set to a multiple integer of the number of said teeth.

Dependencies are inferred from the claim text.

Facts

Application: 10/898,090Filed 23 Jul 2004
Priority: JP 2003/20099624 Jul 2003
Published: US 2005/0016396 A127 Jan 2005
Granted: 29 Aug 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B41F 31/15
Inking arrangements or devices: devices for moving vibrator-rollers
B41F 13/008
Common details of rotary presses or machines: mechanical features of drives, e.g. gears, clutches
F16D 11/14
Clutches in which the members have interengaging parts: with clutching members movable only axially
B41P 2213/256
Devices allowing two gears to engage with each other: in a fixed angular position