EP0244668A2 - Disposition d'échelle avec des sections d'échelle extensibles, en particulier échelle de pompier - Google Patents
Disposition d'échelle avec des sections d'échelle extensibles, en particulier échelle de pompier Download PDFInfo
- Publication number
- EP0244668A2 EP0244668A2 EP87105389A EP87105389A EP0244668A2 EP 0244668 A2 EP0244668 A2 EP 0244668A2 EP 87105389 A EP87105389 A EP 87105389A EP 87105389 A EP87105389 A EP 87105389A EP 0244668 A2 EP0244668 A2 EP 0244668A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ladder
- angle profile
- leg
- arrangement according
- welded
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims description 28
- 239000011324 bead Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 210000001331 nose Anatomy 0.000 description 12
- 238000010276 construction Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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 invention relates to a ladder arrangement with extendable ladder parts, in particular fire chief, according to the preamble of claim 1.
- Known fire brigade ladders with extendable ladder parts the ladder bars of which have a lower chord and upper chord which are firmly connected to one another by means of diagonal struts, are profiled with respect to the lower chord and upper chord in such a way that high torsional and bending rigidity is present.
- complex profiled bars are used, which contain multiple beads and multiple folds.
- the spars are further stiffened by additional profiles such as cross struts and square tube, as is known for example from DE-PS 28 44 439.
- the different conductor sets are inexpensive to manufacture and tend to corrode, particularly in the area of the folds and beads of the bars, due to the inaccessibility with a welding gun, paint gun, etc.
- the object of the invention is to improve the known conductor arrangement according to DE-OS 33 26 644 and, in particular, to create a conductor arrangement of the type mentioned at the beginning, the lower flange spars of which are designed in function and shape with a simple construction in such a way that the conductor spars can withstand the predicted alternating loads and corrosion stresses, ie there is a high alternating load and corrosion stress with a simple structure of the arrangement.
- the essential feature of the invention is therefore a ladder bar, which is shown in cross section in its entirety as a closed body with at least three closed cavities. Highly stressed edge zones, which are most exposed to the risk of breakage, are not taken up by a protruding flag as in DE-OS 33 26 644, but rather by means of outer hollow bodies or hollow body lugs formed with the profile, in which the edge stresses can be distributed very well.
- the external cavities oppose the conductor to great flexural rigidity in horizontal and vertical stress.
- the inner angle profile absorbs the forces which are initiated upwards by the inner conductor part via the rear sliders.
- the nose is supported on the diagonal struts and on the outer angle profile.
- the inner angle profile serves as a sliding surface and force absorption in the vertical and horizontal direction for an internal conductor part.
- the nose has the main task, the horizontal stress Record shear stresses without buckling. Good welding of the rungs is also achieved.
- the lower flange or spar essentially consists of three elements: an internal angle profile with hollow body lugs on the end, an external angle profile with an external nose or roll-in bead, and an underlying angle profile, which serves as a running surface for pushing the ladder parts in and out.
- the aforementioned three elements are calculated and optimized in advance depending on the load in their wall thicknesses, so that a reasonable lightweight construction can be achieved inexpensively.
- the front sliding blocks for the lateral guide are permanently mounted on the inner angle profile, adjustable and removable to the front. They have a small contact surface as a lateral guide for the internal conductor part and serve as a force transducer in the vertical direction when the conductor is placed on it or when used as a bridge.
- the invention creates a ladder with an approach to the carrier of the same bending strength, and thus an optimal weight. Reinforcement is possible at highly stressed points within the spar without external visibility.
- the same tools for different wall thicknesses of the individual elements can be used to manufacture the profiles.
- An optimal gradation of the individual bars of the ladder parts is possible.
- the tightly welded spar ensures the best corrosion protection.
- the external welding is particularly suitable for robots.
- Fig. 1 the ladder arrangement (1) of a fire ladder with four ladder parts (2) with horizontal rungs (7) is shown.
- the individual conductor parts (2) are telescopically inserted.
- Each conductor part (2) is essentially identical in cross-section, comprises an upper chord (5) on the right and left and lower chords (4) on the right and left, with associated lower chord and upper chord elements being connected to one another by diagonal struts (6).
- the horizontal rungs (7) are welded between the associated lower chord elements.
- Each top flange (5) of the ladder parts (2) consists of an eccentric square tube (29) with a downward-pointing flag (30), the outside of which is used to fasten the diagonal struts (6).
- the top and bottom of the square tube (29) is used as a roller or slideway for an elevator, not shown.
- each lower chord (4) or longitudinal spar comprises at least three individual elements welded together, as can be seen in greater detail in FIGS. 2 to 4: an internal angle profile (11) with a horizontal leg (12) and a vertical leg (13), the free ends of which are formed as the first upwardly pointing hollow body nose (8) or as the second inwardly pointing hollow body nose (9), - An external angle profile (14) with a horizontal leg (15) which is welded in the region of the second hollow body nose (9) on the inner angle profile (11), the second hollow body nose (9) being higher than the horizontal leg (15) of the external angle profile (14), and with a vertical leg (16) which has a rolling bead (17) to the outside, - An underlying angle profile (18) with a flat, that is, formed without curling beads, vertical leg (19) which is welded on the underside at the root of the internal angle profile (11).
- the underlying angle profile (18) comprises a horizontally outward, also flat leg (20), the free end of which is welded to the lower free end of the vertical leg (16) of the external angle profile (14), so that a main body cavity ( 1O) is formed in the spar.
- the front sliding blocks (25) of the individual conductor parts (2) are shown on the left in FIG. 1 and in more detail in FIG. 2. They are fixed under the second hollow body nose (9) of the internal angle profile (11), but are adjustable, are mounted on the angle profile (11) and can be removed from the ladder section towards the front. They create a comparatively small contact surface (28) for the associated curling bead (17) of the inner conductor part, so that during operation there is practically no contamination of the lateral spar areas and the visual appearance of each conductor part (2) is therefore good.
- the rear sliding blocks (26) of the individual conductor parts (2) are shown on the right in FIG. 1 and in more detail in FIG. 3. While the front, first mentioned sliding blocks (25) for lateral guidance of the individual ladder parts, the last-mentioned rear sliding blocks (26) are provided for vertical guidance, are larger in cross-section and, in contrast to the front sliding blocks (25), not on the inside angle profile (11) but on the rolling bead (17) of the outer angle profile (14) fixed, but adjustable. The sliding blocks (26) therefore slide during operation on the adjacent inner angle profile (11) of the outer conductor part. The sliding blocks (26) can be removed from the ladder section after releasing the fixed attachment.
- the first hollow body nose (8) of the inner angle profile (11) of the innermost conductor part (2) is designed as a receiving space for an inner cable (21), which is therefore comprehensively protected against damage.
- top rollers (24) run on top rollers (24), one of which is shown in broken lines in FIG. 3.
- the underside of the horizontal smooth leg (20) of the angle profile (18) below serves as a support or running surface for the top roller (24).
- a further angle profile (22) with smooth legs inside the main cavity (10) can be welded in an accommodated manner in order to create additional partial cavities and to bridge the curling bead (17).
- the vertical leg (23) of the further angle profile (22) abuts the horizontal leg (2O) of the underlying angle profile (18) in a stabilizing manner in order to additionally reinforce the latter leg (2O), the underside of which acts as a running surface for the associated top roller (24). serves.
- the arrangement of the further angle profile (22) in the spar and the Mon days of the individual components results in particular from FIG. 4.
- the individual elements are shown in a front view and in perspective in a manner as they are welded together in modular construction to form the finished conductor part.
- the attachment of the weld seam (31) in the upper region of the spar is of great importance, so that the conductor part is given a desired crowning by the shrinking process of the weld and thus straightening work is not required.
- individual tack weld points (27) are placed in the longitudinal direction on the second hollow body nose (9) in order to prevent the second hollow body nose (9) from evading under high stress.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87105389T ATE63603T1 (de) | 1986-04-26 | 1987-04-11 | Leiteranordnung mit ausschiebbaren leiterteilen, insbesondere feuerwehrleiter. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3614266 | 1986-04-26 | ||
DE3614266 | 1986-04-26 | ||
DE19863625298 DE3625298A1 (de) | 1986-04-26 | 1986-07-25 | Leiteranordnung mit ausschiebbaren leiterteilen, insbesondere feuerwehrleiter |
DE3625298 | 1986-07-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0244668A2 true EP0244668A2 (fr) | 1987-11-11 |
EP0244668A3 EP0244668A3 (en) | 1988-08-17 |
EP0244668B1 EP0244668B1 (fr) | 1991-05-15 |
Family
ID=25843275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87105389A Expired - Lifetime EP0244668B1 (fr) | 1986-04-26 | 1987-04-11 | Disposition d'échelle avec des sections d'échelle extensibles, en particulier échelle de pompier |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0244668B1 (fr) |
JP (1) | JPH07103761B2 (fr) |
DE (2) | DE3625298A1 (fr) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0379885A1 (fr) * | 1989-01-21 | 1990-08-01 | Albert Böcker GmbH & Co. KG | Rails de guidage télescopiques pour élévateur incliné ou d'échafaudage |
WO2002066778A1 (fr) * | 2001-02-22 | 2002-08-29 | Jose Rene Asid Gaytan | Mini-echelle portative pliante |
CN104653095A (zh) * | 2015-01-23 | 2015-05-27 | 余登会 | 串连直立高压线路维修梯 |
CN104747067A (zh) * | 2015-02-24 | 2015-07-01 | 余登会 | 消防直立梯 |
CN105003192A (zh) * | 2015-01-23 | 2015-10-28 | 余登会 | 高压电路维修梯 |
WO2016085646A1 (fr) * | 2014-11-24 | 2016-06-02 | Oshkosh Corporation | Ensemble échelle pour appareil d'incendie |
US9677334B2 (en) | 2014-11-24 | 2017-06-13 | Oshkosh Corporation | Aerial ladder for a fire apparatus |
US9814915B2 (en) | 2014-11-24 | 2017-11-14 | Oshkosh Corporation | Quint configuration fire apparatus |
CN108194017A (zh) * | 2018-01-10 | 2018-06-22 | 周国庆 | 一种组合式的多功能电力检修装置 |
CN108194019A (zh) * | 2017-12-28 | 2018-06-22 | 魏敏生 | 一种建筑工程安全折叠梯 |
US10286239B2 (en) | 2017-02-08 | 2019-05-14 | Oshkosh Corporation | Fire apparatus piercing tip ranging and alignment system |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19738886A1 (de) * | 1997-09-05 | 1999-03-11 | Iveco Magirus | Leitersatz für Feuerwehrleitern |
JP4504781B2 (ja) * | 2004-10-22 | 2010-07-14 | 株式会社モリタホールディングス | 消防用梯子 |
EP2226610A1 (fr) | 2009-03-06 | 2010-09-08 | Leica Geosystems AG | Système de mesure géodésique et procédé d'identification d'une unité cible à l'aide d'un appareil de mesure géodésique |
JP5500625B2 (ja) * | 2009-08-10 | 2014-05-21 | ナカ工業株式会社 | 避難装置 |
FR3024489B1 (fr) * | 2014-07-29 | 2018-08-10 | Gimaex International | Echelle telescopique comportant des troncons d'echelle de densites differentes |
CN105525861A (zh) * | 2014-09-28 | 2016-04-27 | 徐州重型机械有限公司 | 一种云梯工程机械及其梯架 |
US9492695B2 (en) | 2014-11-24 | 2016-11-15 | Oshkosh Corporation | Pedestal and torque box assembly for a fire apparatus |
US9580962B2 (en) | 2014-11-24 | 2017-02-28 | Oshkosh Corporation | Outrigger assembly for a fire apparatus |
US10472889B1 (en) * | 2018-04-23 | 2019-11-12 | Oshkosh Corporation | Aerial ladder assembly |
KR102476161B1 (ko) * | 2021-03-25 | 2022-12-09 | 주식회사 에이치알이앤아이 | 사다리차의 붐대 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB654321A (en) * | 1948-10-11 | 1951-06-13 | Gravity Ladders Ltd | Improvements in or relating to ladders |
DE884283C (de) * | 1949-08-20 | 1953-07-27 | Kloeckner Humboldt Deutz Ag | Ausziehbare Feuerwehrleiter mit Metall-Profilholmen |
GB773284A (en) * | 1955-08-22 | 1957-04-24 | Asbrink & Co Aktiebolag | Improvements in ladders |
DE1136577B (de) * | 1954-01-29 | 1962-09-13 | Kloeckner Humboldt Deutz Ag | Ausziehbare Leiter, insbesondere Feuerwehrleiter |
DE3326644A1 (de) * | 1983-07-23 | 1985-01-31 | Iveco Magirus AG, 7900 Ulm | Feuerwehrleiter mit ausschiebbaren leiterteilen |
-
1986
- 1986-07-25 DE DE19863625298 patent/DE3625298A1/de not_active Withdrawn
-
1987
- 1987-04-11 DE DE8787105389T patent/DE3770044D1/de not_active Expired - Lifetime
- 1987-04-11 EP EP87105389A patent/EP0244668B1/fr not_active Expired - Lifetime
- 1987-04-24 JP JP62100211A patent/JPH07103761B2/ja not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB654321A (en) * | 1948-10-11 | 1951-06-13 | Gravity Ladders Ltd | Improvements in or relating to ladders |
DE884283C (de) * | 1949-08-20 | 1953-07-27 | Kloeckner Humboldt Deutz Ag | Ausziehbare Feuerwehrleiter mit Metall-Profilholmen |
DE1136577B (de) * | 1954-01-29 | 1962-09-13 | Kloeckner Humboldt Deutz Ag | Ausziehbare Leiter, insbesondere Feuerwehrleiter |
GB773284A (en) * | 1955-08-22 | 1957-04-24 | Asbrink & Co Aktiebolag | Improvements in ladders |
DE3326644A1 (de) * | 1983-07-23 | 1985-01-31 | Iveco Magirus AG, 7900 Ulm | Feuerwehrleiter mit ausschiebbaren leiterteilen |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0379885A1 (fr) * | 1989-01-21 | 1990-08-01 | Albert Böcker GmbH & Co. KG | Rails de guidage télescopiques pour élévateur incliné ou d'échafaudage |
WO2002066778A1 (fr) * | 2001-02-22 | 2002-08-29 | Jose Rene Asid Gaytan | Mini-echelle portative pliante |
WO2016085646A1 (fr) * | 2014-11-24 | 2016-06-02 | Oshkosh Corporation | Ensemble échelle pour appareil d'incendie |
US11975223B2 (en) | 2014-11-24 | 2024-05-07 | Oshkosh Corporation | Quint configuration fire apparatus |
US11813488B2 (en) | 2014-11-24 | 2023-11-14 | Oshkosh Corporation | Quint configuration fire apparatus |
US9814915B2 (en) | 2014-11-24 | 2017-11-14 | Oshkosh Corporation | Quint configuration fire apparatus |
US9677334B2 (en) | 2014-11-24 | 2017-06-13 | Oshkosh Corporation | Aerial ladder for a fire apparatus |
CN105003192A (zh) * | 2015-01-23 | 2015-10-28 | 余登会 | 高压电路维修梯 |
CN105041188A (zh) * | 2015-01-23 | 2015-11-11 | 余登会 | 维修高压电路直立梯 |
CN105019816A (zh) * | 2015-01-23 | 2015-11-04 | 余登会 | 电力维修梯 |
CN104653095A (zh) * | 2015-01-23 | 2015-05-27 | 余登会 | 串连直立高压线路维修梯 |
CN104747067A (zh) * | 2015-02-24 | 2015-07-01 | 余登会 | 消防直立梯 |
US10286239B2 (en) | 2017-02-08 | 2019-05-14 | Oshkosh Corporation | Fire apparatus piercing tip ranging and alignment system |
US11524193B2 (en) | 2017-02-08 | 2022-12-13 | Oshkosh Corporation | Fire apparatus piercing tip ranging and alignment system |
CN108194019A (zh) * | 2017-12-28 | 2018-06-22 | 魏敏生 | 一种建筑工程安全折叠梯 |
CN108194017A (zh) * | 2018-01-10 | 2018-06-22 | 周国庆 | 一种组合式的多功能电力检修装置 |
CN108194017B (zh) * | 2018-01-10 | 2019-05-24 | 山东翔晟电力工程有限公司 | 一种组合式的多功能电力检修装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0244668A3 (en) | 1988-08-17 |
JPH07103761B2 (ja) | 1995-11-08 |
DE3770044D1 (de) | 1991-06-20 |
JPS62260985A (ja) | 1987-11-13 |
DE3625298A1 (de) | 1987-10-29 |
EP0244668B1 (fr) | 1991-05-15 |
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