Global Patent Index - EP 0841294 A3

EP 0841294 A3 2000-01-12 - Suspended load steadying control device

Title (en)

Suspended load steadying control device

Title (de)

Regeleinrichtung zum Halten von hängenden Lasten

Title (fr)

Dispositif de commande de la stabilisation pour une charge suspendue

Publication

EP 0841294 A3 (EN)

Application

EP 97308303 A

Priority

JP 29604896 A

Abstract (en)

[origin: EP0841294A2] A trolley 12 travels along rails 11 while suspending a load 14 by a rope 13. The trolley 12 has a trolley displacement detector 21 for detecting a trolley position xl, a trolley speed detector 22 for detecting a trolley speed x2, and a swing motion detector 23 for detecting a swing displacement x3 and a swing speed x4 of the suspended load 14. A control device 26 produces a speed command u based on the detected values xl, x2, x3 and x4. In response to the speed command u, a trolley drive device 15 is driven to run the trolley 12. When the trolley is to be moved to the target position by the control of the control device 26, control for steadying the suspended load while the trolley 12 is following a set speed is performed in the first half of control. As the trolley 12 approaches the target position, control for positioning the trolley and steadying the suspended load is performed. Thus, the swing of the suspended load is lessened not only at the target position, but also during the travel of the trolley. <IMAGE>

IPC 1-7 (main, further and additional classification)

B66C 13/06; B66C 13/46

IPC 8 full level (invention and additional information)

B66C 13/06 (2006.01); B66C 13/22 (2006.01)

CPC (invention and additional information)

B66C 13/063 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0841294 A2 19980513; EP 0841294 A3 20000112; EP 0841294 B1 20040922; DE 69730798 D1 20041028; DE 69730798 T2 20050929; HK 1010533 A1 20050318; JP H10139369 A 19980526; KR 100237149 B1 20000302; MY 125688 A 20060830; SG 67435 A1 19990921; TW 380115 B 20000121

INPADOC legal status


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2005-09-14 [26N] NO OPPOSITION FILED

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2005-06-17 [ET] FR: TRANSLATION FILED

2005-03-18 [REG HK GR] STANDARD PATENTS GRANTED IN HONG KONG

- Document: HK 1010533

2005-01-11 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2004-10-28 [REF] CORRESPONDS TO:

- Document: DE 69730798 P 20041028

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2000-01-12 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7B 66C 13/06 A, 7B 66C 13/46 B

1998-05-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19971027

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