Patent ID: 6755124
Filing Date: 2004-06-29
Classification: B30B

Abstract:
A manually operable press comprising:a press slide; a manually pivotable actuating lever for effecting a forward press stroke and a return stroke of said press slide; and a mechanical return stroke interlock device inhibiting a return movement of said press slide before said press slide has come to a lower end position of said press stroke, said return stroke interlock device having: a cam plate pivotably connected to said actuating lever for being pivoted together therewith and having a groove-shaped guide cam provided with a plurality of lock protrusions, a spring-biased lock pin running along said guide cam and being adapted to run freely along said guide cam in an operational direction but being inhibited by said lock protrusions within said guide cam from running in a direction opposite said operational direction, an opening provided in said guide cam at each of said lock protrusions, and unlocking pins provided in each of said openings, said unlocking pin being adapted to be actuated from outside said press for bringing said lock pin out of engagement with said lock protrusions thus allowing said lock pin to run in said opposite direction when said unlocking pins are actuated.