EP 1358969 B1 20080416 - Overload protection for rotary machine tool
Title (en)
Overload protection for rotary machine tool
Title (de)
Überlastschutz für drehende Werkzeugmaschine
Title (fr)
Protection contre les surcharges pour machine-outil tournant
Publication
Application
Priority
DE 10219755 A 20020502
Abstract (en)
[origin: EP1358969A2] A control circuit (6) receives signals from a contactless sensor (8) near the driven member (7b) of the sawtooth clutch (7) and controls the current to the drive motor (1) and an electromagnetic coil (9) surrounding a magnetic clutch (5). This clutch drives the driving portion (7a) of the sawtooth clutch. The angle (alpha) of the drive surfaces (10) of the clutch is chosen so that the driven member is pushed away (X) from the drive member when a torque (M) is applied to the clutch. The magnetic clutch exerts a force (F) which resists disengagement of the clutch up to a given torque value. The clutch drives a reduction gear (2), a chuck (3) and a boring tool (4).
IPC 8 full level
B25F 5/00 (2006.01)
CPC (source: EP US)
B25F 5/001 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1358969 A2 20031105; EP 1358969 A3 20060802; EP 1358969 B1 20080416; AT E392296 T1 20080515; DE 10219755 A1 20031113; DE 50309612 D1 20080529; ES 2301777 T3 20080701; US 2003221928 A1 20031204; US 6863165 B2 20050308
DOCDB simple family (application)
EP 03405287 A 20030423; AT 03405287 T 20030423; DE 10219755 A 20020502; DE 50309612 T 20030423; ES 03405287 T 20030423; US 42431603 A 20030428