EP0014631B2 - Structure d'échelle télescopique - Google Patents

Structure d'échelle télescopique Download PDF

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Publication number
EP0014631B2
EP0014631B2 EP80400128A EP80400128A EP0014631B2 EP 0014631 B2 EP0014631 B2 EP 0014631B2 EP 80400128 A EP80400128 A EP 80400128A EP 80400128 A EP80400128 A EP 80400128A EP 0014631 B2 EP0014631 B2 EP 0014631B2
Authority
EP
European Patent Office
Prior art keywords
ladder
section
scale
plane
sides
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
Application number
EP80400128A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0014631B1 (fr
EP0014631A1 (fr
Inventor
Claude Artaud
Henri Ducruet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Camiva Ste
Original Assignee
Camiva Ste
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9221347&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0014631(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Camiva Ste filed Critical Camiva Ste
Priority to AT80400128T priority Critical patent/ATE4926T1/de
Publication of EP0014631A1 publication Critical patent/EP0014631A1/fr
Application granted granted Critical
Publication of EP0014631B1 publication Critical patent/EP0014631B1/fr
Publication of EP0014631B2 publication Critical patent/EP0014631B2/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic

Definitions

  • the present invention relates to a telescopic ladder structure intended to be mounted on a motor vehicle, for example a fire fighting and rescue ladder.
  • Ladders are already known which consist of a scale park comprising a certain number of telescopic elements called scale planes, which makes it possible to vary the developed length of the scale.
  • each superimposed scale plane can be housed in the plane immediately below the folded-back state of the ladder while in the deployed state each superimposed plane remains partly embedded in the end of the plane immediately lower, the section of each plane being in the shape of a U whose two branches constitute the two identical blanks of each plane, which always have a constant height.
  • the scales are generally characterized by the envelope of points in space capable of being reached by the end of the scale corresponding to a given state of charge. This envelope, called the usage diagram, results from the limitation imposed by the overturning stability of the vehicle or the carrying chassis, and from that imposed by the resistance to bending of the scale planes.
  • the object of the invention is to resolve better than hitherto the weight-resistance compromise to which the structure of the scale must respond, that is to say to increase the payload weight ratio of the scale fleet ( either to increase the maximum admissible load at the end of the scale corresponding to a usage diagram corresponding to a given load) and also to improve the stability of the vehicle by relative lowering of the center of gravity of the weight scale equal.
  • the telescopic rescue or rescue ladder according to the invention intended to be mounted on a transport vehicle, comprises several superimposed planes, each superimposed plane can be housed in the plane immediately below the folded state of the ladder, while in the deployed state each superimposed plane remains partly embedded in the end of the immediately lower plane, the section of each plane being in the form of a rigid U whose base is formed by the bars and the uprights of the ladder and the two branches by a lattice structure forming the two identical flanks of each plane, the flanks of the different planes having lower edges extending parallel to each other.
  • the ladder of the invention is characterized in that the upper edges of each flank get closer and closer to the lower edges as one moves away from the embedding of the ladder on the vehicle transport, the sides of successive planes being of progressively decreasing height.
  • FIGS. 1 and 2 are respectively represented in whole or in part of the emergency ladder systems of the known art, consisting of an assembly 1 called a ladder park, comprising several telescopic elements 2 called ladder planes, allowing to vary the developed length of the ladder.
  • the scale park 1 is itself fixed on a frame 3 which makes it possible to draw up the scale by rotation of the assembly around the horizontal axis 4.
  • a turret 5 allows the orientation in azimuth relative to the vehicle V, by rotation about a vertical axis 6.
  • the section of the planes is generally in the form of a "U” made up of two flanks 7 giving resistance to bending and serving as a railing, connected by steps 8, each of the sides of each plan having, on the scales usually known, constant height.
  • the arrangement according to the invention makes it possible to increase the height of the scale park in the part which does not come to line up above the cabin of the carrying vehicle and, in so doing, the resistance of the ladder planes is greatly improved since this part is the one which undergoes the greatest efforts.
  • FIG. 1 the comparison of a conventional structure (FIG. 1) and a structure according to the invention (FIG. 3) of the same weight and composed of similar lattices highlights the possibility of increasing the payload at the end 33% scale in favor of the structure of the invention, while retaining identical stresses and deformations in the two structures.
  • the systems for guiding the scale planes remain similar to what is already known, and FIG. 5 shows a possible arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Emergency Lowering Means (AREA)
EP80400128A 1979-01-30 1980-01-25 Structure d'échelle télescopique Expired EP0014631B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400128T ATE4926T1 (de) 1979-01-30 1980-01-25 Struktur einer ausziehbaren leiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7902298A FR2448028A1 (fr) 1979-01-30 1979-01-30 Structure d'echelle telescopique
FR7902298 1979-01-30

Publications (3)

Publication Number Publication Date
EP0014631A1 EP0014631A1 (fr) 1980-08-20
EP0014631B1 EP0014631B1 (fr) 1983-10-05
EP0014631B2 true EP0014631B2 (fr) 1987-05-27

Family

ID=9221347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400128A Expired EP0014631B2 (fr) 1979-01-30 1980-01-25 Structure d'échelle télescopique

Country Status (8)

Country Link
US (1) US4317504A (enExample)
EP (1) EP0014631B2 (enExample)
JP (1) JPS56488A (enExample)
AT (1) ATE4926T1 (enExample)
BR (1) BR8000530A (enExample)
DE (1) DE3065097D1 (enExample)
ES (1) ES256662Y (enExample)
FR (1) FR2448028A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6755258B1 (en) * 2003-01-27 2004-06-29 Smeal Fire Apparatus Co. Aerial ladder fire fighting apparatus with positionable waterway
US8413764B1 (en) * 2009-09-29 2013-04-09 David A. Cohen Ladder safety device, systems and methods of arresting falls from ladders
US8074767B1 (en) 2010-08-08 2011-12-13 Orville Douglas Denison Aerial ladder system with powered rungs
FR3024489B1 (fr) * 2014-07-29 2018-08-10 Gimaex International Echelle telescopique comportant des troncons d'echelle de densites differentes
US12234135B2 (en) 2014-11-24 2025-02-25 Oshkosh Corporation Fire apparatus
US9504863B2 (en) 2014-11-24 2016-11-29 Oshkosh Corporation Quint configuration fire apparatus
US9579530B2 (en) 2014-11-24 2017-02-28 Oshkosh Corporation Ladder assembly for a fire apparatus
US9677334B2 (en) * 2014-11-24 2017-06-13 Oshkosh Corporation Aerial ladder for a fire apparatus
US9580962B2 (en) 2014-11-24 2017-02-28 Oshkosh Corporation Outrigger assembly for a fire apparatus
US9492695B2 (en) 2014-11-24 2016-11-15 Oshkosh Corporation Pedestal and torque box assembly for a fire apparatus
US10286239B2 (en) 2017-02-08 2019-05-14 Oshkosh Corporation Fire apparatus piercing tip ranging and alignment system
US12497178B1 (en) * 2020-12-01 2025-12-16 United States Of America As Represented By The Secretary Of The Air Force Fire rescue ladder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US380733A (en) * 1888-04-10 Ladder for city fire-department service
FR630031A (fr) * 1927-02-24 1927-11-22 Pylône
US2923381A (en) * 1954-01-20 1960-02-02 Cabot Shops Inc Telescopic derrick and locking means therefor
JPS483520U (enExample) * 1971-05-21 1973-01-17
JPS50106500A (enExample) * 1974-01-31 1975-08-21
US4094381A (en) * 1977-05-02 1978-06-13 Wilkerson Darrell F Aerial extension ladder

Also Published As

Publication number Publication date
ES256662U (es) 1981-07-01
ES256662Y (es) 1981-12-16
DE3065097D1 (en) 1983-11-10
US4317504A (en) 1982-03-02
ATE4926T1 (de) 1983-10-15
EP0014631B1 (fr) 1983-10-05
EP0014631A1 (fr) 1980-08-20
JPS56488A (en) 1981-01-06
FR2448028A1 (fr) 1980-08-29
FR2448028B1 (enExample) 1982-06-25
BR8000530A (pt) 1980-10-14

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