Roll stand

Details Roll stand Roll stand

2007-04-20

2008-12-30

Ross, Dana (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

Reexamination Certificate

active

07469566

ABSTRACT:
One of a pair of rolls of a roll stand is formed with an axially throughgoing central hole through which passes a drive shaft having a pair of ends. A coupling at one end of the drive shaft rotates same and the one roll. This one roll can be shifted, normally vertically, between a use position closely juxtaposed with the other roll and a change position spaced away from the other roll and with the roll resting on supports. An entrainment fitting on the carriage can fit with and axially connect to an entrainment element of the drive shaft in the change position of the other roll. An actuator can shift the carriage from an inner position into an outer position and thereby pull the drive shaft out of the one roll and leave the one roll resting on the supports.

REFERENCES:
patent: 5450740 (1995-09-01), Lovinggood et al.
patent: 2002/0134127 (2002-09-01), Takeda et al.
patent: 2007/0187065 (2007-08-01), Marti
patent: 3912684 (1990-10-01), None
patent: 0 388 865 (1990-09-01), None
patent: 1184095 (2002-03-01), None
patent: 1210738 (1970-10-01), None
patent: WO-2005/018843 (2005-03-01), None

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