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1. (WO1989000257) ROTARY INDEXING MECHANISM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000257 International Application No.: PCT/AU1988/000232
Publication Date: 12.01.1989 International Filing Date: 01.07.1988
Chapter 2 Demand Filed: 31.01.1989
IPC:
B23Q 16/06 (2006.01) ,F16H 27/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
16
Equipment for precise positioning of tool or work into particular locations not otherwise provided for
02
Indexing equipment
04
having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position
06
Rotary indexing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
27
Step-by-step mechanisms without freewheel members, e.g. Geneva drives
02
with at least one reciprocating or oscillating transmission member
Applicants:
REEFDALE PTY. LTD. [AU/AU]; 20-22 Braeside Drive Braeside, VIC 3195, AU (AllExceptUS)
EPPINGER, Otto, Richard [AU/AU]; AU (UsOnly)
Inventors:
EPPINGER, Otto, Richard; AU
Agent:
SMEETON, Anthony, R. @; Davies & Collison 1 Little Collins Street Melbourne, VIC 3000, AU
Priority Data:
PI 283401.07.1987AU
Title (EN) ROTARY INDEXING MECHANISM
(FR) MECANISME D'AVANCEMENT ROTATIF
Abstract:
(EN) A rotary indexing mechanism for a screen printing machine of the type comprising a carousel (10) which includes a multiple armed fixed frame (12) and a multiple armed movable frame (20) mounted to rotate relative thereto, a plurality of print heads mounted to one of the frames and a plurality of screen platens mounted to the other of the frames. The rotary indexing mechanism includes a coupling member (37) mounted for reciprocatory rotary motion, and including engagement means (36) operable to engage the movable frame (20) during a selected portion of the reciprocatory rotary motion, drive means (40) including a linear actuator (40a, 40b, 40c) for effecting said reciprocatory rotary motion, a transmission mechanism (55) operatively connecting the drive means (40) to the coupling member (37) and, fluid damper means (42) mounted so as to oppose the reciprocatory rotary motion of the coupling member (37). In one form the transmission means includes two racks (60, 61) one connected to the drive means (40) and the other connected to the fluid damper means (42). In another form the transmission means includes a crank (64) rotatable by the drive means (40) with a pin (65) receivable in a slot (69) in the coupling member (37).
(FR) Mécanisme d'avancement rotatif pour machine de sérigraphie du type comprenant un carrousel (10) comportant un cadre (12) fixe à bras multiples et un cadre (20) mobile à bras multiples monté pour tourner par rapport à celui-ci, une pluralité de têtes d'impression montées sur un des cadres, ainsi qu'une pluralité de platines de trames montées sur l'autre cadre. Le mécanisme d'avancement rotatif comprend un élément (37) de couplage monté pour effectuer un mouvement rotatif de va-et-vient, et comportant un moyen (36) d'engrènement engrenant le cadre (20) mobile pendant une partie sélectionnée du mouvement rotatif de va-et-vient, un moyen (40) d'entraînement comprenant un vérin linéaire (40a, 40b, 40c) destiné à exécuter ledit mouvement rotatif de va-et-vient, un mécanisme de transmission (55) reliant de manière opérationnelle le moyen (40) d'entraînement à l'élément (37) de couplage, et un moyen (42) amortisseur de fluide monté de manière à s'opposer au mouvement rotatif de va-et-vient de l'élément (37) de couplage. Dans un mode de réalisation, le moyen de transmission comprend deux crémaillères (60, 61), une connectée au moyen d'entraînement et l'autre connectée au moyen (42) amortisseur de fluide. Dans un autre mode de réalisation, le moyen de transmission comprend une manivelle (64) mise en rotation par le moyen (40) d'entraînement à l'aide d'un maneton (65) passant dans une fente (69) située dans l'élément (37) de couplage.
Designated States: AT, AU, BB, BG, BR, CH, DE, DK, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MW, NL, NO, RO, SD, SE, SU, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
African Intellectual Property Organization (BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US4934263US5031527AU1988020741