Global Patent Index - EP 2634360 A4

EP 2634360 A4 20141119 - LOCKING STRUCTURE FOR EXTENSIONABLELADDER

Title (en)

LOCKING STRUCTURE FOR EXTENSIONABLELADDER

Title (de)

VERRIEGELUNGSSTRUKTUR FÜR EINE AUSZIEHBARE LEITER

Title (fr)

STRUCTURE DE VERROUILLAGE POUR UNE ÉCHELLE EXTENSIBLE

Publication

EP 2634360 A4 20141119 (EN)

Application

EP 11835433 A 20111011

Priority

  • CN 201010524708 A 20101028
  • CN 2011001700 W 20111011

Abstract (en)

[origin: EP2634360A1] A locking mechanism for an extending ladder, the extending ladder comprises a plurality of telescopically collapsible columns (1) and a plurality of rungs (2), the locking mechanism comprises: a connection sleeve (3) for connecting the column (1) with corresponding rung (2); a plug pin (4) disposed inside the connection sleeve (3); a push button (6) and an automatic unlocking switch (7). The automatic unlocking switch (7) is rotatably disposed, a plughole (31) is provided on the bottom surface of the connection sleeve (3), a pushing protrusion (32) is provided protruding upward on the top surface of the connection sleeve (3). The locking mechanism not only capable of unlocking the single column step by step, but also automatically unlocking the adjacent upper locking mechanism after a lower locking mechanism is unlocked.

IPC 8 full level

E06C 7/06 (2006.01); E06C 1/12 (2006.01)

CPC (source: EP)

E06C 1/125 (2013.01); E06C 7/06 (2013.01)

Citation (search report)

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

DOCDB simple family (publication)

EP 2634360 A1 20130904; EP 2634360 A4 20141119; CN 102003136 A 20110406; CN 102003136 B 20120912; WO 2012055159 A1 20120503

DOCDB simple family (application)

EP 11835433 A 20111011; CN 201010524708 A 20101028; CN 2011001700 W 20111011