US 12,246,369 B2
Press brake safety latch
Dragisa Djuric, Rapid City, SD (US)
Assigned to Accurpress America Inc., Rapid City, SD (US)
Filed by ACCURPRESS AMERICA INC., Rapid City, SD (US)
Filed on May 13, 2021, as Appl. No. 17/320,186.
Prior Publication US 2022/0362826 A1, Nov. 17, 2022
Int. Cl. B21D 5/02 (2006.01); B21D 55/00 (2006.01)
CPC B21D 5/0236 (2013.01) [B21D 55/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A latch assembly configured to mount an upper punch to an upper beam of a press brake for bending a workpiece, the latch assembly comprising:
a safety latch disposed within a safety latch cavity of the upper punch, wherein the upper punch is partially housed within a first cavity of the upper beam;
a biasing member also disposed within the safety latch cavity;
a pin extending from a lateral side of the upper punch through the safety latch, wherein the safety latch is configured to rotate about the pin;
the safety latch including a safety latch cam configured to engage the upper beam within a second cavity of the upper beam, wherein the biasing member is configured to bias the safety latch cam in a forward direction towards the upper beam cavity to prevent the upper punch from disengaging the upper beam;
wherein the safety latch comprises a safety latch arm;
wherein the safety latch arm is connected at one end to the pin and is configured so that upwards force directly enacted on an other end of the safety latch arm disengages the safety latch cam from the upper beam; and
wherein the safety latch arm is angled downwards when the safety latch cam is engaged.