Title:
Positioning device and component placement machineincluding the positioning device
Document Type and Number:
WIPO Patent Application WO1997034461
Kind Code:
A3
Abstract:
The positioning device comprises a chassis (1) provided with a drive wheel (2), mounted on the shaft of a motor (6), and a reversing wheel (3). The positioning device further comprises a loop-shaped traction member (4) tensioned around the wheels (2, 3). The traction member (4) is connected to a load (5), which is movable relative to the chassis (1) and together with the traction member (4) forms a closed loop. The drive wheel (2) and the motor (6) form a drive means for driving the load (5) via a first section (41) of the traction member (4), which first section is disposed between the load (5) and the drive wheel (2), and via a second section (42) of the traction member (4), which second section is disposed between the load (5) and the drive wheel (2). The load (5) carries tensioning means (7) for tensioning the traction member (4). These tensioning means act on the first section (41) of the traction member (4) via a first point of engagement (A) and on the second section (42) of the traction member (4) via a second point of engagement (B). These tensioning means (7) keep the traction member (4) under tension. The load (5) is coupled to the traction member (4) via a coupling mechanism (8). The coupling mechanism (8) links a first relative movement of the first point of engagement (A) relative to the load to a second relative movement of the point of engagement (B) relative to the load in an opposite direction.
Inventors:
VERMEER ADRIANUS JOHANNES PETR (NL)
DE BIE PETRUS ARNOLDUS (NL)
COX JEROEN GERARD PIETER (NL)
DE BIE PETRUS ARNOLDUS (NL)
COX JEROEN GERARD PIETER (NL)
Application Number:
PCT/IB1997/000166
Publication Date:
November 06, 1997
Filing Date:
February 26, 1997
Export Citation:
Assignee:
PHILIPS ELECTRONICS NV (NL)
PHILIPS NORDEN AB (SE)
PHILIPS NORDEN AB (SE)
International Classes:
G12B5/00; F16H7/24; F16H19/00; H05K13/04; (IPC1-7): B23Q16/00; F16F15/02; H05K13/04
Foreign References:
| DE4404613A1 | 1995-08-17 | |||
| DE19505426A1 | 1996-08-22 | |||
| GB2221756A | 1990-02-14 | |||
| US4013163A | 1977-03-22 |
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