Printing unit with releasable bearing clamp

Details Printing unit with releasable bearing clamp Printing unit with releasable bearing clamp

1992-10-27

1993-09-07

Eickholt, Eugene H.

Printing

Rolling contact machines

Rotary

101375, B41F 500

Patent

active

052419053

ABSTRACT:
A printing unit (10) includes a blanket cylinder (20), a bearing assembly (56) and a door assembly (72). The blanket cylinder (20) carries a tubular printing blanket (36). The bearing assembly (56) includes a bearing housing (58) fixed to the stub shaft (50) on the end of the blanket cylinder (20). The door assembly (72) includes a door (82) which is supported for pivotal movement on a frame wall (22) of the printing unit (10). The door (82) has a closed position in which it extends across an opening (76) in the frame wall (22), and an open position in which it does not extend across the opening (76) in the frame wall (22). A clamping assembly clamps the bearing housing (58) on the door (82) when the blanket cylinder (20) rotates during a printing operation. The clamping assembly includes a first clamp (100) which fixed to the door (82) and a second clamp (102) which is supported on the door (82) for movement relative to the first clamp (100). The first clamp (100) is engaged with the bearing housing (58) when the door (82) is closed. The second clamp (102) is movable into and out of engagement with the bearing housing (58) when the door (82) is closed. The door assembly (72) is movable with the blanket cylinder (20) for throw-off.

REFERENCES:
patent: 2925037 (1960-02-01), Fischer
patent: 3738265 (1973-06-01), Saueressig
patent: 4807527 (1989-02-01), Knauer
patent: 4823693 (1989-04-01), Kobler
patent: 4913048 (1990-04-01), Tittgemeyer
patent: 5022251 (1991-06-01), Negrussi
patent: 5101726 (1992-04-01), Lubke et al.
patent: 5129319 (1992-07-01), Umetsu
patent: 5134937 (1992-08-01), Derivi et al.

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