EP 0253181 B1 19920916 - FASTENING DEVICE FOR DISC-LIKE TOOLS ON A TOOL SPINDLE OF A PORTABLE ELECTRIC MACHINE TOOL
Title (en)
FASTENING DEVICE FOR DISC-LIKE TOOLS ON A TOOL SPINDLE OF A PORTABLE ELECTRIC MACHINE TOOL
Publication
Application
Priority
DE 3623555 A 19860712
Abstract (en)
[origin: US4779382A] A mechanism for mounting a sanding disk to the spindle of a portable right-angled grinder that will allow the connection to be released without extra tools. The mechanism consists essentially of a hollow spindle (18), of a tensioning anchor (22) that is accommodated inside the spindle (18) such that it can slide back and forth axially subject to an activating mechanism (54) but cannot rotate, and of two flanges that accommodate the sanding disk (28) between them, one of which, a mating flange that constitutes a support (20), is rigidly secured to the spindle, and the other of which, the tensioning flange (26), is loosely secured to the tensioning anchor (22). Between mutually facing demarcating surfaces (34 & 36) of the tensioning anchor (22) and the spindle (18) is a space (39) that communicates with another space (44) in the tensioning anchor (22). The spaces (39 & 44) are full of a plastic material (40) that can transmit force hydraulically. A piston ( 46) is accommodated in the second space (44), slides back and forth subject to the activating mechanism (54), forcing the plastic material out and creating tensioning force in the space (39), and can be secured in the tensioning position.
IPC 1-7
IPC 8 full level
B24B 45/00 (2006.01)
CPC (source: EP KR US)
B24B 23/02 (2013.01 - KR); B24B 45/00 (2013.01 - KR); B24B 45/006 (2013.01 - EP US); Y10T 83/9379 (2015.04 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0253181 A2 19880120; EP 0253181 A3 19900131; EP 0253181 B1 19920916; DE 3623555 A1 19880204; DE 3623555 C2 19881103; DE 3781733 D1 19921022; JP S6389267 A 19880420; KR 880001373 A 19880423; KR 900008485 B1 19901122; US 4779382 A 19881025
DOCDB simple family (application)
EP 87109270 A 19870627; DE 3623555 A 19860712; DE 3781733 T 19870627; JP 16712087 A 19870706; KR 870007523 A 19870713; US 7217187 A 19870710