Global Patent Index - EP 1842821 A1

EP 1842821 A1 2007-10-10 - BALANCE WEIGHT-LESS ELEVATOR APPARATUS

Title (en)

BALANCE WEIGHT-LESS ELEVATOR APPARATUS

Title (de)

AUFZUGSVORRICHTUNG OHNE AUSGLEICHSGEWICHT

Title (fr)

APPAREIL D'ASCENSEUR SANS CONTREPOIDS

Publication

EP 1842821 A1 (EN)

Application

EP 04822449 A

Priority

JP 2004017722 W

Abstract (en)

There is provided a counterweight-less elevator apparatus capable of minimizing spaces in the top and pit portions of an elevator shaft and thereby reducing the size of the elevator shaft. For this purpose, in a counterweight-less elevator apparatus comprising a car going up and down in an elevator shaft; a driving sheave and a returning sheave provided in a top portion and a pit portion of the shaft, respectively; and a main rope which is caused to pass around the driving sheave and the returning sheave and one end portion of which is provided on the car from the upside of the car and the other end portion of which is provided on the car from the downside of the car, both end portions of the main rope are provided on one side surface of the car, and the one end portion is provided in a lower portion on one side surface of the car from the upside or the other end portion is provided in an upper portion on one side surface of the car from the downside.

IPC 8 full level (invention and additional information)

B66B 7/08 (2006.01)

CPC (invention and additional information)

B66B 7/08 (2013.01); B66B 11/007 (2013.01); B66B 11/008 (2013.01)

Designated contracting state (EPC)

DE

EPO simple patent family

EP 1842821 A1 20071010; EP 1842821 A4 20120425; CN 100522784 C 20090805; CN 1906110 A 20070131; JP 4290731 B2 20090708; JP WO2006057058 A1 20080605; WO 2006057058 A1 20060601

INPADOC legal status


2012-06-27 [18W] APPLICATION WITHDRAWN

- Effective date: 20120521

2012-04-25 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20120322

2012-04-25 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: B66B 7/08 20060101AFI20120316BHEP

2008-03-05 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2008-03-05 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE

2007-10-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20060727

2007-10-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE