Global Patent Index - EP 0819646 A4

EP 0819646 A4 2000-01-05 - METHOD AND SYSTEM FOR CONTROLLING THE SPEED OF A WINCH

Title (en)

METHOD AND SYSTEM FOR CONTROLLING THE SPEED OF A WINCH

Title (de)

VERFAHREN UND SYSTEM ZUM GESWINDIGKEITSREGELUNG EINER WINDE

Title (fr)

PROCEDE ET SYSTEME POUR CONTROLER LA VITESSE D'UN TREUIL

Publication

EP 0819646 A4 (EN)

Application

EP 95910783 A

Priority

JP 9500394 W

Abstract (en)

[origin: WO9628377A1] A method and system for controlling the speed of a winch which can improve the safety and operability thereof without being put into a free fall state and obtain a lowering speed which is the same as what would be obtained in the free fall state. In order to make this happen, the rotation speed of a winch drum (13) is kept substantially at a unique one relative to the stroke of an operation lever (5) until the operation lever (5) reaches a predetermined stroke, while it becomes different relative to the same stroke of the operation lever (5) in accordance with a speed mode selected from a plurality of speed modes when the operation lever exceeds the predetermined stroke.

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

B66D 1/44

IPC 8 full level (invention and additional information)

B66D 1/44 (2006.01)

CPC (invention and additional information)

B66D 1/44 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE

EPO simple patent family

WO 9628377 A1 19960919; EP 0819646 A1 19980121; EP 0819646 A4 20000105

INPADOC legal status


2000-11-15 [18W] WITHDRAWN

- Date of withdrawal: 20000918

2000-01-05 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 19991124

2000-01-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE

1998-01-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19970926

1998-01-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE