EP 1046467 A1 20001025 - Polishing machine with rotating head carrying a plurality of polishing sectors having a segmented and resilient structure
Title (en)
Polishing machine with rotating head carrying a plurality of polishing sectors having a segmented and resilient structure
Title (de)
Poliermaschine mit einem Drehkopf der eine Vielzahl von Poliersektoren mit segmentierten und elastischen Strukturen trägt
Title (fr)
Machine de polissage comprenant une tête de polissage portant une pluralité de secteurs de polissage ayant une structure segmentée et élastique
Publication
Application
Priority
EP 99830221 A 19990416
Abstract (en)
A polishing machine comprises at least a rotating head (1), connected through a flange (2) to the end of a drive shaft, the working face of the rotating head carrying a plurality of grinding sectors (3), held in hingedly brackets (4), connected to the rotating head (1) at uniformly spaced angular positions, each grinding sector (3) being of an aggregate of abrasive particles and of a bonding resin having a cylindrical working face whose geometric axis lies on a plane normal to the axis of rotation of the head (1) and a shank portion shaped to fit into a receiving slot of the holding bracket (4). Each grinding sectors (3) has a laminated structure including a shaped shank (5) of a rigid material and mechanically resistant to fit in the receiving slot, at least a resilient pad, at least partly of elastomer (6, 8) interposed between a face of said shank (5) and an aggregate abrasive body (9, 10) having said cylindrical working face defined by a plurality of end faces of as many protrusions (9) of aggregate, rising from a relatively thin or flexible base layer (10) of said aggregate, incorporating reinforcing fibers. <IMAGE> <IMAGE>
The machine has at least a rotating head (1) connected through a flange (2) to the end of a drive shaft and with a working facing which carries grinding sectors (3), hingedly held in brackets (4), and connect to the head at uniformly spaced angular positions. The sectors are an aggregate of abrasive particles and a bonding resin, with a cylindrical working face whose geometric axis lies on a plane normal to the head rotation axis, and a shank portion shaped to fit into a receiving bracket slot. Each grinding sector has a laminated structure with a shaped shank of a rigid material and mechanically resistant to fit in the slot, at least a resilient pad at least partly of elastomer interposed between a face of the shank and an aggregate abrasive body. The abrasive body has the cylindrical working surface defined by end faces of as many protrusions of aggregate rising from a relatively thin and flexible base layer of the aggregate incorporating reinforcing fibers.
IPC 1-7
IPC 8 full level
B24B 41/047 (2006.01); B24D 7/06 (2006.01); B24D 17/00 (2006.01); B24D 99/00 (2010.01)
CPC (source: EP)
B24B 41/0475 (2013.01); B24D 7/066 (2013.01); B24D 99/005 (2013.01)
Citation (search report)
- [X] EP 0691182 A2 19960110 - VEGLIO HS SRL [IT]
- [X] EP 0395162 A1 19901031 - VINCENT SPA [IT]
- [A] DE 4119679 A1 19920102 - TONCELLI DARIO [IT]
Citation (third parties)
Third party :
"FIMAD DIGITAL PHOTOGRAPHS", DIGITAL PHOTOGRAPHS, XX, XX, 16 April 1999 (1999-04-16), XX, pages 01 - 03, XP002949338
Designated contracting state (EPC)
DE ES IT PT
DOCDB simple family (publication)
EP 1046467 A1 20001025; EP 1046467 B1 20030129; DE 69905135 D1 20030306; DE 69905135 T2 20030605; ES 2188122 T3 20030616
DOCDB simple family (application)
EP 99830221 A 19990416; DE 69905135 T 19990416; ES 99830221 T 19990416