Patent · US Expired

Tiebar structure for injection molding machine

US6241509A · kind A · utility

4Cited by
10References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 12, 2000
Grant dateJun 5, 2001
Priority date
Expiry dateJul 12, 2020

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C2045/0458
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Construction includes a stationary platen and a movable platen movable with respect to the stationary platen from a closed position in clamping engagement with the stationary platen to an open position spaced from the stationary platen. At least two tiebars are provided connecting the stationary platen to the movable platen, and a stroke cylinder within each tiebar operative to move the platens from an open to closed position and from a closed to open position. Clamping means are provided to clamp the platens together in the closed position, and including means carried by the tiebars to engage the clamping means.

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