EP0636762A1 - Hubrettungssatz mit verlegten, flexiblen Leitungsstrangen, insbesondere Drehleiter eines Brandschutzfahrzeuges - Google Patents

Hubrettungssatz mit verlegten, flexiblen Leitungsstrangen, insbesondere Drehleiter eines Brandschutzfahrzeuges Download PDF

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Publication number
EP0636762A1
EP0636762A1 EP94111905A EP94111905A EP0636762A1 EP 0636762 A1 EP0636762 A1 EP 0636762A1 EP 94111905 A EP94111905 A EP 94111905A EP 94111905 A EP94111905 A EP 94111905A EP 0636762 A1 EP0636762 A1 EP 0636762A1
Authority
EP
European Patent Office
Prior art keywords
rollers
deflection
turntable assembly
assembly according
ladder
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
Application number
EP94111905A
Other languages
English (en)
French (fr)
Other versions
EP0636762B1 (de
Inventor
Heiner Hörsch
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.)
Iveco Magirus AG
Original Assignee
Iveco Magirus AG
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
Application filed by Iveco Magirus AG filed Critical Iveco Magirus AG
Publication of EP0636762A1 publication Critical patent/EP0636762A1/de
Application granted granted Critical
Publication of EP0636762B1 publication Critical patent/EP0636762B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/38—Arrangements of hoses, e.g. operative connection with pump motor
    • B67D7/40—Suspending, reeling or storing devices
    • 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

Definitions

  • This invention relates to a turntable assembly, particularly a turntable ladder of a fire-fighting vehicle, having a ladder assembly and flexible guide ropes disposed substantially one above another and laid to the top of the ladder, which guide ropes are passed over deflection units attached to the end faces of ladder diagonals.
  • a double deflection of two guide ropes disposed one above the other is known, wherein two comparatively large single pulleys are seated one behind the other in a support bracket, which in turn is attached to the ladder diagonals.
  • the single pulley facing the attachment point has a slightly larger diameter than the other, more remote single pulley, so that both guide ropes are situated comparatively closely one above the other but without contact.
  • the large overall length of the deflection unit which is determined by the two single pulleys disposed one behind the other, is a disadvantage.
  • the known deflection unit is not suitable for use in a turntable assembly where space is very restricted.
  • both deflection pulleys are disposed not one behind the other but side by side in parallel, the space requirement increases in width.
  • the deflection units are situated in the region of the ladder diagonals of the ladder assemblies between the upper and lower beams and are also slightly inclined.
  • the object of the present invention is to create a turntable assembly of the type cited initially in which the deflection unit is constructed in a very space-saving manner.
  • the essence of the invention is that at least one deflection unit is provided with a row of rollers disposed substantially in a semicircle, via which a guide rope is guided along the semicircular arc which determines the radius of deflection of the guide rope, the rollers having a radius which is very small compared with the radius of deflection.
  • the small rollers are of substantially identical construction, wherein in an advantageous further development of the subject of the invention a profiled roller may be provided at each end of the semicircular arc, the radius of which profiled rollers corresponds to that of the other small rollers.
  • All the rollers may be spaced apart at the same distance from each other.
  • the rollers are preferably situated closely one behind another in a row on the semicircular arc, but without mutual contact between them.
  • the rollers have axes of rotation which run parallel to each other.
  • the deflection unit additionally comprises a single central deflection pulley, which is large compared with the rollers, for the deflection of another guide rope.
  • the profiled rollers are situated in close proximity to the large central deflection pulley or to the other guide rope guided on this large deflection pulley without contacting the latter.
  • the small rollers preferably consist of self-lubricating plastic material, and the bearing pins of the small rollers have tubular stainless steel elements, which are advantageously distance bushes which are disposed between the side cheeks of the support bracket of a deflection unit.
  • the distance bushes are screwed down to fixed bearing bolts between the side cheeks of the support bracket.
  • an additional row of rollers of the above-mentioned type may be provided for a third, outer guide rope.
  • At least one of the two flexible ropes to be deflected in the same region is not passed over a single pulley, the radius of which corresponds to the radius of deflection, but is passed over a row of rollers disposed in a circle, which results in an extremely space-saving arrangement.
  • the centres of the radii of deflection are thereby displaced in parallel in order to permit the maximum radii of deflection for a given overall height of the deflection unit. Due to the extremely space-saving mode of construction, a plurality of flexible ropes can be accommodated using a single deflection unit.
  • a turntable assembly (1) is provided in the form of a turntable ladder of a fire-fighting vehicle, the ladder assembly having five individual ladder parts (2 to 6) as can be seen in particular from Figure 5.
  • Each ladder part has horizontal rungs (18), a lower beam (19), an upper beam (20) and ladder diagonals (7) between the lower and upper beam. So that the individual ladder parts can be extended or telescopically retracted, the flexible (electrical and/or hydraulic) guide ropes, which are installed in the ladder assembly and which run from the lowest (largest) ladder part (6) to the uppermost (smallest) ladder part (2), have to be passed over deflection units (10) which are located in the region of the ladder diagonals (7).
  • front and rear deflection units (10) for two guide ropes (8, 9) disposed one above the other are provided in each case on the second and fourth ladder parts (3 and 5).
  • the front deflection units are inclined slightly to the left in relation to the vertical
  • the rear deflection units (10) are inclined slightly to the right in relation to the vertical.
  • a single deflection unit (10) is illustrated schematically in Figure 1. It comprises a relatively large central single deflection pulley (13) for deflecting a guide rope (9) which deflection pulley is rotatably mounted in a support bracket (16) which is disposed substantially horizontally, the end of the support bracket (16) remote from the bearing point being attached to the associated ladder diagonal (7) between the upper and lower beams.
  • the deflection unit (10) is also designed for an additional guide rope (8) which is led round a row of small rollers disposed substantially in a semicircle, these small rollers having a very small radius (r) compared with the radius of deflection (R).
  • the centre (M1) of the semicircular arc or of the radius of deflection (R) can be placed in the vicinity of the centre (M2) of the comparatively large central deflection pulley (13), so that a short overall length is achieved for a double deflection unit for two guide ropes.
  • the rollers (11) for deflecting the guide rope (8) are of substantially identical construction, and in the embodiment illustrated are disposed on the semicircular arc at a uniform spacing (d) from each other. Whilst the majority of the rollers (11) are constructed as illustrated in Figure 3, the first and the last roller (12) of the semicircular arc, which are placed in the region of the guide rope (9), are of profiled construction as shown in Figure 4 in order to ensure guidance run-in and run-out without problems, whilst the remaining rollers (11) inexpensively consist of standard plain bearings. A large number of rollers (11, 12) is employed, in order to keep the angle of deflection and thereby the bending stress on the guide rope (8) low.
  • the deflection unit is of maintenance-free construction in that the rollers consist of self-lubricating plastics and the bearing pins consist of tubular stainless steel elements (14) which at the same time function as distance bushes which are braced between the side checks (16) by fixed bearing bolts (17) as supports.
  • the central deflection pulley (13) may optionally also be designed as a row of rollers of the type employed for the deflection of the guide rope (8).
  • a third row of rollers for a third guide rope may also be disposed in the same deflection unit (10).
  • rollers may be disposed according to the invention on a portion of an ellipse.
  • the length of a semicircular arc does not have to be exactly half a circle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Ladders (AREA)
EP94111905A 1993-07-30 1994-07-29 Hubrettungssatz mit verlegten, flexiblen Leitungsstrangen, insbesondere Drehleiter eines Brandschutzfahrzeuges Expired - Lifetime EP0636762B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4325597 1993-07-30
DE4325597A DE4325597A1 (de) 1993-07-30 1993-07-30 Hubrettungssatz mit verlegten flexiblen Leitungssträngen, insbesondere Drehleiter eines Brandschutzfahrzeuges

Publications (2)

Publication Number Publication Date
EP0636762A1 true EP0636762A1 (de) 1995-02-01
EP0636762B1 EP0636762B1 (de) 1997-12-17

Family

ID=6494068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111905A Expired - Lifetime EP0636762B1 (de) 1993-07-30 1994-07-29 Hubrettungssatz mit verlegten, flexiblen Leitungsstrangen, insbesondere Drehleiter eines Brandschutzfahrzeuges

Country Status (4)

Country Link
EP (1) EP0636762B1 (de)
AT (1) ATE161313T1 (de)
DE (2) DE4325597A1 (de)
ES (1) ES2111812T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106080617A (zh) * 2016-08-31 2016-11-09 中车株洲电机有限公司 悬浮电磁铁翻身工装及翻身方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601073A (en) * 1950-01-20 1952-06-17 Gulf Oil Corp Radial head weight-controlled hose extension device
US2660337A (en) * 1947-10-24 1953-11-24 Bowser Inc Hose extending and latching mechanism
US2732992A (en) * 1956-01-31 Aerial extension ladder
US2776093A (en) * 1953-07-20 1957-01-01 James H Cox Hose retriever
DE1014452B (de) * 1955-09-27 1957-08-22 Gilbert & Barker Mfg Co Schlauchfuehrung fuer Fluessigkeitsausgeber
DE2123419A1 (de) * 1971-05-12 1972-11-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Feuerwehr-Drehleiter
AU520084B2 (en) * 1978-07-21 1982-01-14 Abbey Engineering Pty. Ltd. Telescopic boom apparatus
GB2143885A (en) * 1983-07-23 1985-02-20 Iveco Magirus Fire-ladder with extendable ladder sections
EP0379742A1 (de) * 1989-01-25 1990-08-01 Koppens Automatic Fabrieken B.V. Einrichtung zum Halten von Zapfschläuchen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732992A (en) * 1956-01-31 Aerial extension ladder
US2660337A (en) * 1947-10-24 1953-11-24 Bowser Inc Hose extending and latching mechanism
US2601073A (en) * 1950-01-20 1952-06-17 Gulf Oil Corp Radial head weight-controlled hose extension device
US2776093A (en) * 1953-07-20 1957-01-01 James H Cox Hose retriever
DE1014452B (de) * 1955-09-27 1957-08-22 Gilbert & Barker Mfg Co Schlauchfuehrung fuer Fluessigkeitsausgeber
DE2123419A1 (de) * 1971-05-12 1972-11-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Feuerwehr-Drehleiter
AU520084B2 (en) * 1978-07-21 1982-01-14 Abbey Engineering Pty. Ltd. Telescopic boom apparatus
GB2143885A (en) * 1983-07-23 1985-02-20 Iveco Magirus Fire-ladder with extendable ladder sections
EP0379742A1 (de) * 1989-01-25 1990-08-01 Koppens Automatic Fabrieken B.V. Einrichtung zum Halten von Zapfschläuchen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106080617A (zh) * 2016-08-31 2016-11-09 中车株洲电机有限公司 悬浮电磁铁翻身工装及翻身方法
CN106080617B (zh) * 2016-08-31 2018-02-16 中车株洲电机有限公司 悬浮电磁铁翻身工装及翻身方法

Also Published As

Publication number Publication date
ES2111812T3 (es) 1998-03-16
DE69407356T2 (de) 1998-05-20
EP0636762B1 (de) 1997-12-17
DE4325597A1 (de) 1995-02-02
ATE161313T1 (de) 1998-01-15
DE69407356D1 (de) 1998-01-29

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