EP 0114170 B1 19861112 - OVERLOAD PROTECTION DEVICE IN PRESSES
Title (en)
OVERLOAD PROTECTION DEVICE IN PRESSES
Publication
Application
Priority
EP 83100561 A 19830122
Abstract (en)
[origin: ES8501670A1] An overload protection for presses in which the working stages are protected against overload by balance-like overload pressure-responsive devices to further protect the press balance-like adding pressure-responsive devices are also used whose operating point adjusted to the limit loads of the connecting rods is adjusted to a smaller value than the sum of all of the balance-like overload pressure-responsive devices the adding pressure-responsive devices are connected in parallel since the pressure space of each balance-like overload pressure-responsive device is connected to one pressure space each of each adding pressure-responsive device the cross sectional areas of the pistons of the balance-like adding pressure-responsive devices are calculated from the distance of the working stages to the actuating planes for the left adding pressure-responsive device, from the distance of the working stages to the right actuating plane whereas for the right adding pressure-responsive device, from the distance of the working stages to the left actuating plane. The pre-pressure in the pressure spaces is adjusted by way of pressure control devices supplied by pump aggregates.
IPC 1-7
IPC 8 full level
B30B 15/28 (2006.01)
CPC (source: EP US)
B30B 15/284 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0114170 A1 19840801; EP 0114170 B1 19861112; BR 8400228 A 19840828; DE 3367556 D1 19870102; ES 529029 A0 19841201; ES 8501670 A1 19841201; JP S59137199 A 19840807; US 4492154 A 19850108
DOCDB simple family (application)
EP 83100561 A 19830122; BR 8400228 A 19840119; DE 3367556 T 19830122; ES 529029 A 19840120; JP 742384 A 19840120; US 57230584 A 19840120