FR3079866B1 - SEMI-AUTOMATIC HYDRAULIC SYSTEM FOR RAPID STABILIZATION OF MOBILE WORK EQUIPMENT, LADDER, LADDER OR SCAFFOLDING TYPE - Google Patents

SEMI-AUTOMATIC HYDRAULIC SYSTEM FOR RAPID STABILIZATION OF MOBILE WORK EQUIPMENT, LADDER, LADDER OR SCAFFOLDING TYPE Download PDF

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Publication number
FR3079866B1
FR3079866B1 FR1800320A FR1800320A FR3079866B1 FR 3079866 B1 FR3079866 B1 FR 3079866B1 FR 1800320 A FR1800320 A FR 1800320A FR 1800320 A FR1800320 A FR 1800320A FR 3079866 B1 FR3079866 B1 FR 3079866B1
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FR
France
Prior art keywords
ladder
feet
equipment
semi
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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FR1800320A
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French (fr)
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FR3079866A1 (en
Inventor
Yvon Raymond Audic
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Individual
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Individual
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Priority to FR1800320A priority Critical patent/FR3079866B1/en
Publication of FR3079866A1 publication Critical patent/FR3079866A1/en
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Publication of FR3079866B1 publication Critical patent/FR3079866B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/44—Means for mounting ladders on uneven ground

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

Dispositif semi-automatique hydraulique de stabilisation rapide et sûre d'un équipement prévu pour reposer au sol sur 4 pieds, en permettant d'assurer l'appui simultané et uniforme des 4 pieds sur un sol présentant un défaut de planéité. Une fois stabilisé, le verrouillage des pieds en position est assuré pour la sécurité. L'équipement considéré peut être un escabeau, une plateforme de travail, un échafaudage, etc... Le système se compose d'une paire de pieds coulissants en lieu et place de 2 pieds fixes de l'équipement à 4 pieds. La paire de pieds coulissants forme un système de vérins simple effet montés en opposition, reliés entre eux par un circuit hydraulique muni d'une vanne de coupure à fermeture automatique. L'action de l'utilisateur sur la vanne permet un ajustement des pieds coulissants pour reposer au sol simultanément avec les 2 pieds fixes, assurant ainsi la stabilité de l'équipement sur 4 points d'appui.Hydraulic semi-automatic device for the rapid and safe stabilization of equipment designed to rest on the ground on 4 feet, by ensuring the simultaneous and uniform support of the 4 feet on a ground presenting a lack of flatness. Once stabilized, the legs lock into position for safety. The equipment considered can be a stepladder, a work platform, a scaffolding, etc... The system consists of a pair of sliding legs instead of 2 fixed legs of the 4-legged equipment. The pair of sliding feet form a system of single-acting cylinders mounted in opposition, interconnected by a hydraulic circuit fitted with an automatically closing cut-off valve. The action of the user on the valve allows an adjustment of the sliding feet to rest on the ground simultaneously with the 2 fixed feet, thus ensuring the stability of the equipment on 4 support points.

FR1800320A 2018-04-09 2018-04-09 SEMI-AUTOMATIC HYDRAULIC SYSTEM FOR RAPID STABILIZATION OF MOBILE WORK EQUIPMENT, LADDER, LADDER OR SCAFFOLDING TYPE Expired - Fee Related FR3079866B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1800320A FR3079866B1 (en) 2018-04-09 2018-04-09 SEMI-AUTOMATIC HYDRAULIC SYSTEM FOR RAPID STABILIZATION OF MOBILE WORK EQUIPMENT, LADDER, LADDER OR SCAFFOLDING TYPE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1800320A FR3079866B1 (en) 2018-04-09 2018-04-09 SEMI-AUTOMATIC HYDRAULIC SYSTEM FOR RAPID STABILIZATION OF MOBILE WORK EQUIPMENT, LADDER, LADDER OR SCAFFOLDING TYPE
FR1800320 2018-04-09

Publications (2)

Publication Number Publication Date
FR3079866A1 FR3079866A1 (en) 2019-10-11
FR3079866B1 true FR3079866B1 (en) 2022-01-07

Family

ID=65031103

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1800320A Expired - Fee Related FR3079866B1 (en) 2018-04-09 2018-04-09 SEMI-AUTOMATIC HYDRAULIC SYSTEM FOR RAPID STABILIZATION OF MOBILE WORK EQUIPMENT, LADDER, LADDER OR SCAFFOLDING TYPE

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FR (1) FR3079866B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11549636B1 (en) * 2020-04-20 2023-01-10 Richard F. Langner Systems and methods for a self-stabilizing platform

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552941A (en) 1946-04-15 1951-05-15 Russel C Courtney Ladder support
US2598875A (en) * 1951-04-09 1952-06-03 Kenneth Billingsly Hydraulic assembly for adjustable ladder leg extension
US3102606A (en) 1961-02-21 1963-09-03 Hopfeld Henry Adjustable legs for ladders
GB1344258A (en) * 1970-03-31 1974-01-16 Mills Scaffold Co Ltd Scaffolding
AU7715675A (en) 1974-01-11 1976-07-08 Palm L R Ladder
US4095671A (en) 1974-02-01 1978-06-20 Utility Products, Inc. Adjustable self-locking level support
JPS61184614A (en) * 1985-02-13 1986-08-18 Hajime Yasuga Controller of attitude of stepladder and trap
NL1000235C2 (en) * 1995-02-17 1996-08-22 Jan Cornelis Bais Mobile equipment stable on uneven ground
GB2340529A (en) 1998-08-01 2000-02-23 Dennis Stanley Whitehouse Hydraulic levelling apparatus for ladders and scaffolding
GB2375343A (en) 2001-03-15 2002-11-13 Hydraulic Levelling Systems Lt Hydraulic levelling systems
FR2892447A1 (en) * 2005-10-25 2007-04-27 Benoit Schneyder Base plane e.g. ground, unevenness compensating device for e.g. ladder, has rigid tube projecting outside arched tube, right sliding leg placed in retracted position in arched tube, and left sliding leg maintained in release position
GB2487408B (en) 2011-01-21 2014-09-17 Eric Burden Self levelling support apparatus

Also Published As

Publication number Publication date
FR3079866A1 (en) 2019-10-11

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