Drive unit

Details Drive unit Drive unit

2005-07-01

2010-11-09

Mackey, James (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

C425S149000, C425S170000, C425S574000

Reexamination Certificate

active

07828540

ABSTRACT:
Disclosed is a drive unit, in particular for an injection unit or an ejector of an injection molding machine, comprising a stroke spindle device with a spindle and a spindle nut, and a prestressing device for prestressing the spindle that is dischargeable in a displacement phase of the stroke spindle device and is chargeable when the spindle is driven in the opposite direction, wherein the stroke spindle device and the prestressing device are supported by the same component, and wherein a load measuring device is provided for measuring the load acting on the spindle, which senses the forces acting on the component.

REFERENCES:
patent: 3124841 (1964-03-01), Keinosuke
patent: 4601653 (1986-07-01), Inaba
patent: 5747076 (1998-05-01), Jaroschek et al.
patent: 5980235 (1999-11-01), Eppich et al.
patent: 7004742 (2006-02-01), Ickinger
patent: 7086851 (2006-08-01), Ickinger et al.
patent: 7112056 (2006-09-01), Ickinger
patent: 2002/0149268 (2002-10-01), Yamada et al.
patent: 100 45 907 (2002-03-01), None
patent: 1 249 921 (2002-10-01), None
patent: WO 02/085599 (2002-10-01), None

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