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1. (WO1998051445) POLISHING HEAD FOR PLATE MATERIALS IN GRANITE, HARD STONE OR CERAMIC WITH ABRASIVE SEGMENTS HAVING CONTINUOUS OSCILLATING TANGENTIAL MOTION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/051445 International Application No.: PCT/IT1998/000115
Publication Date: 19.11.1998 International Filing Date: 11.05.1998
Chapter 2 Demand Filed: 01.12.1998
IPC:
B24B 41/047 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
41
Component parts of grinding machines or devices, such as frames, beds, carriages or headstocks
04
Headstocks; Working-spindles; Features relating thereto
047
Grinding heads for working on plane surfaces
Applicants:
PEDRINI, Luigi [IT/IT]; IT
Inventors:
PEDRINI, Luigi; IT
Agent:
GASPARINI, Alberto; Ufficio Finderoute Via Ugo Sbrillanci, 17 I-41012 Carpi, IT
Priority Data:
MO97A00008214.05.1997IT
Title (EN) POLISHING HEAD FOR PLATE MATERIALS IN GRANITE, HARD STONE OR CERAMIC WITH ABRASIVE SEGMENTS HAVING CONTINUOUS OSCILLATING TANGENTIAL MOTION
(FR) TETE DE POLISSAGE POUR MATERIAUX PLAQUES EN GRANIT, PIERRE DURE OU CERAMIQUE ET DONT LES SEGMENTS ABRASIFS EFFECTUENT UN DEPLACEMENT TANGENTIEL OSCILLANT CONTINU
Abstract:
(EN) The polishing head comprises: abrasive segments (1) made to oscillate on radial shafts (3) driven by a ring (7) with vertical eccentric rotary motion; the ring being coupled to a first eccentric (10); the crown (15) being fixed to the casing (6) and the pinion (14) being coupled with rotational motion to a second eccentric (18), connected to the structure of the machine; a plurality of pins (25) mounted on eccentric planetary gears (26), coupled with rotational motion to the said ring (7) and to the body (5) of the head; a further pair of crown and pinion gears (13, 12), in which the said first crown gear (13) is rigidly connected to the second pinion (14) and rotates with it on the said second eccentric (18); the first pinion (12) being rigidly connected to the said first eccentric (10) concentrically with the axis (A) of the head; the second crown gear (15) being rigidly connected to the casing (6) concentrically with the axis of the head.
(FR) La tête de polissage de l'invention comprend: des segments abrasifs (1) conçus pour osciller sur des arbres (3) radiaux entraînés par un segment (7) à rotation excentrique verticale, ce segment étant couplé à un premier excentrique (10). La roue (15) est fixée au carter (6), et le pignon (14) est couplé par rotation à un second excentrique (18) raccordé à la structure de la machine. Une pluralité de broches (25) sont montées sur les engrenages planétaires (26) de l'excentrique, et couplées par rotation au segment (7) et au corps (5) de la tête. Cette tête de polissage comprend également une autre paire de roues plates et des pignons d'engrenage (13, 12), la première roue plate (13) étant solidement raccordée au second pignon (14) et tournant en même temps que lui sur le second excentrique (18). Le premier pignon (12) ainsi que la seconde roue plate (15) sont solidement raccordés au premier excentrique (10) concentriquement par rapport à l'axe (A) de la tête.
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Designated States: BR, CN, LT, LV, RO, SI, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0981420US6273799CN1255883