EP 0356809 B1 19921209 - STROKE ADJUSTMENT APPARATUS FOR A PUNCH PRESS
Title (en)
STROKE ADJUSTMENT APPARATUS FOR A PUNCH PRESS
Publication
Application
Priority
CH 324088 A 19880831
Abstract (en)
[origin: EP0356809A1] A push rod (20) passes through the eccentric shaft (1). Arranged in the flywheel (5) is an additional disc clutch (15), which is connected to a shaft section (17) that is connected via a screw thread to the push rod (20). As a result, the push rod (20) can be displaced with a translatory movement by the machine drive (4) via the further disc clutch (15). The push rod (20) actuates the inward and outward movement of the detent pin (10) which arrests the eccentric shaft (1) with the eccentric bushing (2). The distortable clutch disc (13) is also actuated by the push rod (20) and forms the drive connection between the eccentric shaft (1) and the feed drive (14). In order to actuate these control devices for adjusting the stroke, it is merely necessary for the motor of the positionable machine drive (4) to be actuated in a particular direction of rotation, with appropriate engagement or disengagement of the clutch. No further drives are necessary to implement all the control movements to adjust the stroke. In addition, these control movements take place from the side of the flywheel (5), so that a compressed design is also achieved. <IMAGE>
IPC 1-7
IPC 8 full level
B30B 15/06 (2006.01); B30B 1/26 (2006.01)
CPC (source: EP US)
B30B 1/263 (2013.01 - EP US); Y10T 74/2112 (2015.01 - EP US); Y10T 83/87 (2015.04 - EP US); Y10T 83/8843 (2015.04 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0356809 A1 19900307; EP 0356809 B1 19921209; CH 677336 A5 19910515; DE 58902956 D1 19930121; JP 2552000 B2 19961106; JP H02104500 A 19900417; US 4987794 A 19910129
DOCDB simple family (application)
EP 89115109 A 19890816; CH 324088 A 19880831; DE 58902956 T 19890816; JP 22635889 A 19890831; US 39970789 A 19890828