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1. WO1990014493 - LADDER WITH FOUR-POINT FOOTING

Publication Number WO/1990/014493
Publication Date 29.11.1990
International Application No. PCT/NO1990/000083
International Filing Date 16.05.1990
Chapter 2 Demand Filed 12.10.1990
IPC
E06C 1/20 2006.01
EFIXED CONSTRUCTIONS
06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS
CLADDERS
1Ladders in general
02with rigid longitudinal member or members
14Ladders capable of standing by themselves
16with struts which rest on the ground
20with supporting struts formed as poles
E06C 7/42 2006.01
EFIXED CONSTRUCTIONS
06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS
CLADDERS
7Component parts, supporting parts, or accessories
42Ladder feet; Supports therefor
CPC
E06C 1/20
EFIXED CONSTRUCTIONS
06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
CLADDERS
1Ladders in general
02with rigid longitudinal member or members
14Ladders capable of standing by themselves
16with ; hinged; struts which rest on the ground
20with supporting struts formed as poles
E06C 7/423
EFIXED CONSTRUCTIONS
06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
CLADDERS
7Component parts, supporting parts, or accessories
42Ladder feet; Supports therefor
423Ladder stabilising struts
Applicants
  • RAUFOSS A/S [NO]/[NO] (AllExceptUS)
  • HEGGEN, Hans [NO]/[NO] (UsOnly)
Inventors
  • HEGGEN, Hans
Agents
  • BYKLUM, Knut, B.
Priority Data
89196516.05.1989NO
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LADDER WITH FOUR-POINT FOOTING
(FR) ECHELLE A QUATRE PIEDS
Abstract
(EN)
A ladder having four-point contact with the underlying surface comprises ladder rungs (5), side members or stringers (8) and support legs (6) that are fastened at one end to respective side members (8) for pivoting outwards therefrom. Each support leg (6) independently is rapidly deployable by means of a pressure device (1) acting between the stringer (8) and the support leg (6). The ladder itself may be of any type, but is intended particularly for rescue purposes where time is of critical importance.
(FR)
Une échelle en contact à quatre points avec la surface d'appui comprend des échelons (5), des organes latéraux ou des longerons (8) et des pieds de support (6) fixés, à une extrémité, sur les organes latéraux respectifs (8) pour permettre un mouvement pivotant depuis ceux-ci vers l'extérieur. Chaque pied de support (6) se déplie rapidement et de façon indépendante à l'aide de moyens de pression (1) agissant entre le longeron (8) et ledit pied (6). L'échelle peut être de tout genre mais est particulièrement appropriée au sauvetage où la vitesse est de toute importance.
Also published as
FI915378
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