EP 0102303 A3 19860910 - METHOD OF AFFIXING PICK HOLDERS TO A CUTTING WHEEL OR A MILLING DRUM

Title (en)

METHOD OF AFFIXING PICK HOLDERS TO A CUTTING WHEEL OR A MILLING DRUM

Publication

EP 0102303 A3 19860910 (FR)

Application

EP 83420122 A 19830719

Priority

FR 8213036 A 19820721

Abstract (en)

[origin: US4512612A] This invention relates to a system for mounting tooth-carrier sectors on a cutter wheel or a milling-cutter drum (or coal-cutter drum) permitting the rapid mounting of the sectors, as well as a change in the direction of operation of the wheel or drum about its axis. The supports (2) attached to the wheel (1) by their base are delimited by two lateral surfaces (4) and by one upper surface (3), which rest on the yoke-shaped base of the tooth-carrier sectors (8). The support (2) has a shape which is symmetrical with respect to its axis (7), and its lateral surfaces (4) form with the perpendicular to the axis (7) an angle ( alpha ) which is less than 90 DEG at their outer end. The sector (8) is closed on the side which rests against the front surface (4) during operation. The sector (8) is attached to its support, for example by means of an elastic dog (11).

IPC 1-7

E21C 35/18; E21C 25/42; E21C 25/12

IPC 8 full level

E21C 25/10 (2006.01); E21C 35/18 (2006.01)

CPC (source: EP US)

E21C 25/10 (2013.01 - EP US); E21C 35/18 (2013.01 - EP US); Y10T 403/7086 (2015.01 - EP US)

Citation (search report)

[A] FR 1303889 A 19620914 - EICKHOFF GEB
[A] US 4068897 A 19780117 - AMOROSO MICHAEL J
[A] US 2039416 A 19360505 - HOLMES MORRIS P
[A] DE 2855576 A1 19800703 - ELFGEN APEX
[A] DE 2855577 A1 19800703 - ELFGEN APEX

Designated contracting state (EPC)

AT BE CH DE GB IT LI LU NL SE

DOCDB simple family (publication)

US 4512612 A 19850423; AT E32471 T1 19880215; CA 1240496 A 19880816; DE 3375667 D1 19880317; DK 333783 A 19840122; DK 333783 D0 19830720; EP 0102303 A2 19840307; EP 0102303 A3 19860910; EP 0102303 B1 19880210; ES 282106 U 19851216; ES 282106 Y 19860716; ES 285599 U 19851001; ES 285599 Y 19860501; FR 2530724 A1 19840127; FR 2530724 B1 19850125; GR 79191 B 19841022; PT 77064 A 19830801; PT 77064 B 19860128

DOCDB simple family (application)

US 50889183 A 19830629; AT 83420122 T 19830719; CA 432791 A 19830720; DE 3375667 T 19830719; DK 333783 A 19830720; EP 83420122 A 19830719; ES 282106 U 19830720; ES 285599 U 19850325; FR 8213036 A 19820721; GR 830171945 A 19830714; PT 7706483 A 19830720