Patent · US Expired

Drive unit

US7828540B2 · kind B2 · utility

2Cited by
7References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 1, 2005
Grant dateNov 9, 2010
Priority date
Expiry dateDec 25, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H2025/2096
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.