Global Patent Index - EP 3233694 A1

EP 3233694 A1 2017-10-25 - SAFETY SWITCHING FOR AN ELEVATOR SYSTEM

Title (en)

SAFETY SWITCHING FOR AN ELEVATOR SYSTEM

Title (de)

SICHERHEITSSCHALTUNG FÜR EINE AUFZUGSANLAGE

Title (fr)

CIRCUIT DE SÉCURITÉ POUR UNE INSTALLATION D'ASCENSEUR

Publication

EP 3233694 A1 (DE)

Application

EP 15794182 A

Priority

  • EP 14198526 A
  • EP 2015076499 W

Abstract (en)

[origin: WO2016096269A1] The invention relates to a safety switching (2) for elevator systems (1). To this end, a safety function (A, B) and a safety switch (34, 35) dedicated to the safety function (A, B) are provided. The safety switch (34, 35) opens or closes a safety circuit (3) between one connection point (32) and a second connection point (33) as a function of a safety state of the safety function (A, B). Furthermore, there is a test function (T), according to the invention, for testing the safety function (A, B), which tests whether or not the safety switch (34, 35) opens and closes the safety circuit (3) as a function of the safety state of the safety function (A, B). A detection device (57) is provided for the test function (T). Furthermore, an auxiliary energy function (H) is provided, by way of which an auxiliary voltage can be temporarily applied via at least the safety switch (34, 35) and an input part (58) of the detection device (57) for performing the test function (T). Locally between the connection point (32) and the at least one additional connection point (33), the auxiliary energy function (H) introduces into the safety circuit (3) an auxiliary energy for the purpose of generating the auxiliary voltage. The invention further relates to the use of a safety switching (2) for converting or retrofitting an existing elevator system (1), to an elevator system (1) having such a safety switching (2), and to a method for testing of safety functions (A, B) in elevator systems (1).

IPC 8 full level (invention and additional information)

B66B 5/00 (2006.01); B66B 13/22 (2006.01)

CPC (invention and additional information)

B66B 5/0093 (2013.01); B66B 5/0031 (2013.01); B66B 13/22 (2013.01); B66B 19/007 (2013.01); B66B 9/00 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

WO 2016096269 A1 20160623; CN 107250018 A 20171013; EP 3233694 A1 20171025; US 2017341906 A1 20171130

INPADOC legal status


2018-03-28 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-28 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170607

2017-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-25 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA MD

2017-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME