A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LOCKING SYSTEM FOR FOLDABLE LADDER
Foldable ladders and related methods for use within a pit of an elevator system include a first upright, a second upright, and a plurality of rungs pivotally mounted to each of the first upright and the second upright. A locking mechanism has a first segment pivotally attached to the first upright and a second segment pivotally attached to the second upright, and the two segments are pivotally connected. A locking device is located on an upright and operably connected to a segment. The locking device includes a first catch and a second catch, a pin moveable to engage with the first catch in a first position and moveable to engage in a second position. A biasing mechanism applies a force to the pin to engage the pin with a catch. An operating device is operable to apply opposing force against the biasing mechanism to disengage the pin from the catch.
LOCKING SYSTEM FOR FOLDABLE LADDER
Foldable ladders and related methods for use within a pit of an elevator system include a first upright, a second upright, and a plurality of rungs pivotally mounted to each of the first upright and the second upright. A locking mechanism has a first segment pivotally attached to the first upright and a second segment pivotally attached to the second upright, and the two segments are pivotally connected. A locking device is located on an upright and operably connected to a segment. The locking device includes a first catch and a second catch, a pin moveable to engage with the first catch in a first position and moveable to engage in a second position. A biasing mechanism applies a force to the pin to engage the pin with a catch. An operating device is operable to apply opposing force against the biasing mechanism to disengage the pin from the catch.
LOCKING SYSTEM FOR FOLDABLE LADDER
GUILLOT NICOLAS (author) / FAUCONNET AURELIEN (author)
2020-10-01
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern