EP0679794B1 - Betätigungsvorrichtung für eine Ausziehleiter - Google Patents

Betätigungsvorrichtung für eine Ausziehleiter Download PDF

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Publication number
EP0679794B1
EP0679794B1 EP95460018A EP95460018A EP0679794B1 EP 0679794 B1 EP0679794 B1 EP 0679794B1 EP 95460018 A EP95460018 A EP 95460018A EP 95460018 A EP95460018 A EP 95460018A EP 0679794 B1 EP0679794 B1 EP 0679794B1
Authority
EP
European Patent Office
Prior art keywords
ladder
pivot
cradle
vehicle
basal plane
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 - Lifetime
Application number
EP95460018A
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English (en)
French (fr)
Other versions
EP0679794A1 (de
Inventor
Patrick Jacobee
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0679794A1 publication Critical patent/EP0679794A1/de
Application granted granted Critical
Publication of EP0679794B1 publication Critical patent/EP0679794B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the present invention relates to a device for sliding ladder operation, plus device particularly intended to be mounted on a vehicle able to carry such large scales dimension: utility trucks or vans, in particular of firefighters.
  • the present invention therefore consists of a device providing a global solution to this problem, in that it minimizes and therefore very clearly facilitate human intervention to maneuvering large sliding ladders, and in that it also allows an establishment much faster from these scales which is a of paramount importance in the context of the activities of firefighters.
  • the cradle can be swiveled around a vertical axis on 180 ° to orient the scale, around a first axis horizontal transverse to tilt the scale, and around a second horizontal axis orthogonal to the first to adjust the transverse verticality of the scale.
  • the rigid low link of adjustable length advantageously comprises a stirrup fixed on the side and other from the base plane of the scale, for example at level of a bar, as well as a median arm telescopic with progressive locking means or brake to adjust its length.
  • said pivot is slidably mounted on a longitudinal rail fixed to the vehicle roof and protruding at the rear, so as to be movable in together with the ladder and its cradle between a rear service position and a front position of transport.
  • Fig. 1 illustrates a device in accordance with the invention mounted on a fire truck 1. It this is a device intended not only for the maneuvering of a sliding ladder, but which serves also to place and secure it in position of transport on the vehicle roof 1.
  • the device includes a beam or rail metallic 2 mounted longitudinally on the roof of the vehicle 1, for example centrally. It exceeds the rear within the limits imposed by the regulations of road traffic. In practice, the part protruding is about one meter long. Yes necessary, it is provided with reinforcing arms 24, Fig. 1.
  • Rail 2 on which a carriage 3 is mounted is advantageously an H profile whose core 20 is vertical, and which therefore has two lower wings and higher, respectively 21 and 22, as shown better Fig. 3.
  • the carriage 3 is mounted on the rail 2 so as to have only one degree of freedom sliding along of it, between the rear end E and a limit before limit switch L located on the roof of the vehicle 1, Fig. 1.
  • the body of the carriage 3 has a profile of U inverted to cover the rail: it has a horizontal upper shelf 30 and two walls vertical lateral 31. It is held in place and retained on rail 2 by two horizontal wings 32 internally directed from the side walls 31, which enclose therewith and the plate 30 the upper wing 22 of the rail 2.
  • the carriage 3 rolls on the lower wing 21 of the rail 2 by means of two front and rear pairs of rollers 33.
  • a lock allows it to be locked in its most remote position.
  • the lock shown in the drawings is a hook tilting 34 articulated around a transverse axis on the plate 30, which hangs by gravity around from the rear end of the rail 2.
  • the carriage 3 carries fixed on its plate 30 a tubular part or sleeve 35 of internal section circular, vertically oriented and open upwards. It is located substantially in the center of the plate 30.
  • the sliding ladder 5 which conventionally comprises three plans including a base plan 50, a plan intermediate 51 and an upper plane 52, is mounted in a cradle 4 appearing in more detail in Figs. 4 and 5 (for reasons of clarity of the drawing, the cradle 4 has been shown without the scale in FIG. 4).
  • the cradle 4 essentially has two sides 40 joined by lower crosspieces 41, to receive the scale 5 in such a way that the plans 51 and 52 remain maneuverable from the basic plane 50.
  • the base plane 50 is fixed suspended across the upper part of cradle 4, the other two planes 51, 52 being suspended under him inside the cradle.
  • the base plane 50 is fixed in cradle 4 at two levels, by through transverse rods 43 passed through through these steps and received and keyed in receiving holes 42 made in the upper part from each of the flanks 40.
  • the cradle 4 further comprises a transverse axis lower 44, Fig. 5, arranged substantially in sound middle, by which it is articulated on a part 6.
  • This has a horizontal intermediate plate 60 on which is fixed by means of a mount 61 a vertical bearing 62 and under which is fixed a vertical cylindrical tail 63 of section circular.
  • Axis 44 is engaged and retained at the level of its central part in the bearing 62.
  • the bearing 62 is a spherical or equivalent bearing, by example a swing bearing.
  • An means for limiting the oscillation of axis 44 this means being for example, as shown, a jumper 64 secured to the plate 60 and surrounding the axis 44 near the bearing 62.
  • the cylindrical tail 63 of the part 6 is intended to be received in the socket 35 of the carriage 3 previously described, in which it can spin freely. Possibly, a means of lock not shown is provided to maintain the tail 63 in place in the socket 35.
  • the cradle 4 is then removably carried on the carriage 3 by a Cardan joint: it can pivot longitudinally around its transverse axis 44, pivot transversely due to the possibility of oscillation of the transverse axis 44 in the bearing 62, and turn around the axis of the socket 35.
  • the device of the invention further comprises, secured to the vehicle 1, an attachment means 7 which is located at a distance under the rear protruding part of the rail 2, carried on an arm parallel to it and in the same vertical plane.
  • the attachment means 7 can be carried on the rear drawbar 8 of vehicle 1. It thus finds at 50 cm above the ground, approximately, a vertical deviation of the order of 2 m separating it from rail 2 which is about 2.5 m away.
  • the attachment means 7, Figs. 1 and 7, includes a slide 70 mounted on a slide 80, which is located on the top of the drawbar 8, on all of its length.
  • the slide 70 is provided with a brake, by example a screw 71, to allow it to be locked in one any point on slide 80, and, as that attachment element, of a cylindrical tail 72 directed upwards.
  • the attachment means 7 is intended to receive a end of a rigid link 9 articulated by its other end at the bottom of the amount of base 50 of scale 5, which rigid connection 9 has function to ensure the restraint and stability of the scale, both in its transverse plane and in its tilt plane.
  • the rigid connection 9 is shown in plan on the Fig. 9. It has as longitudinal median element a telescopic arm 90 adjustable in length by means a screw 91 ensuring the tightening between its two parts 90a, 90b. A metal structure is attached to the outer part 90b of the arm 90, which forms beyond from a first end of the latter a stirrup 92.
  • the bracket 92 has a base cross member 93 and two branches 94 parallel to arm 90, between which plans 50 to 52 of scale 5 are received.
  • the fixing is ensured by means of a transverse rod 95 passing through a bar of the base plan 50, and received and keyed in holes at the ends of the branches 94, the connection 9 possibly so rotate relative to the scale around the rod 95.
  • the second end of arm 90 includes an attachment ring 96. It is a ball joint or equivalent for allow it to be engaged and keyed quickly and without difficulty on the vertical attachment tail 72 of the means 7, and to also allow the connection rigid 9 pivots freely around the attachment tail 72.
  • scale 5 in transport position on the roof of vehicle 1 has its two planes 51, 52 immobilized with respect to its basic plan 50 so classical, that is to say by means of the sound string development system.
  • scale 5 protrudes slightly beyond rail 2, and the connection rigid 9 hanging under the ladder is immobilized by a quick release 98.
  • scale 5 is received in a support, advantageously formed of lateral uprights 100 and rollers 101 mounted crazy at the base of these uprights, on which supports plan 52 of the ladder.
  • the amounts 100 which can be mounted integral with rail 2, have holes 102 at the base plane 50, to allow to subject the latter by commitment to through a rung of a transverse rod received in these holes and keyed.
  • a means of securing the cradle 4 can also be provided, consisting for example of lateral arms 103 pivotally mounted at their base, and coming to be fixed by their upper end on nipples protruding outwardly on the sides 40.
  • the carriage 3 is against its stop forward limit switch on rail 2.
  • the first operation is the responsibility of the vehicle driver 1 who is going to have to place the latter adequately by relative to the wall and depending on the height at achieve.
  • vehicle 1 will be placed parallel to the wall, at a distance calculated so that the inclination of the ladder is correct.
  • Fig. 8 illustrates the next step by which ladder 5 descended to the rear of vehicle 1 after release of the rigid attachment 9 and the means securing in transport position, and retreating and locking in position E on rail 2 of carriage 3 loaded with cradle 4 and ladder 5.
  • the cradle 4 and ladder 5 are then pivoted around axis 44 to descend the base of the ladder towards the ground. Note that the longitudinal position of the cradle along the ladder is such that the base of it cannot touch the ground. Then, the scale being standing upright close to the vertical, the link 9 is hooked by means of attachment 7.
  • Fig. 12 shows the scale 5 pressed against a wall P. Since it is a view of principle, only the essential functional elements of the device according to the invention have been shown, know the pivot 35, the cradle 4, the attachment means 7 and the rigid connection 9.
  • the scale 5 is secured on the pivot 35 via the cradle 4, and below by means of the rigid connection 9 fixed to the attachment means 7.
  • the device according to the invention further improves the stability of the ladder by increasing the upper pressing force against the wall P. To do this, scale 5 is arched as the drawing illustrates it, by pulling on its base towards outside according to arrow F, then blocking in length of the arm 90 by means of the screw 91. If necessary, we can provide a ground support for two ladder uprights, using two crutches level adjustment, known per se.
  • Fig. 10 illustrates the case where the land adjoining the wall against which the ladder 5 must be supported is not horizontal, but inclined parallel to the wall. Vehicle 1 will then be oriented in the direction of the slope, which will advance the slide 70 on slide 80 to find the balance of the socket 35, condition on which the verticality depends transverse scale.
  • the slope is very steep, the useful length of the slide 80 will not be sufficient. For this case, it an advanced position of the carriage 3 on rail 2 relative to position E, in which it can be immobilized, Fig. 11. The vehicle 1 will then have been oriented in the direction of rise, and the slide 70 will be moved back as it fits on slide 80. Note that in the direction normal to the wall, the slope does not of importance.
  • the device according to the invention has the advantage of grouping little elements easy to install on a vehicle van type utility vehicle. It should also be noted that the sliding ladder mounted in the device remains perfectly usable independently of it, since it is immediately separable from cradle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Harvester Elements (AREA)

Claims (10)

  1. Betätigungsvorrichtung für eine Ausfahrleiter (5), die auf einem Fahrzeug (1) angebracht ist und dadurch gekennzeichnet ist, daß sie die folgenden Merkmale aufweist:
    ein Drehzapfen (35), der vom Fahrzeug (1) überstehend derart getragen ist, daß er im Verhältnis zur Fahrzeugkarosserie freigesetzt werden kann;
    Anbringungsmittel (7), die vom Fahrzeug (1) mit Abstand unter dem Schwenkzapfen (35) getragen sind, um eine Befestigung an einem Punkt herzustellen, der im wesentlichen auf der selben Vertikalen wie der letztgenannte liegt;
    eine Wiege (4), in der die Leiter (5) mittels ihres Grundgliedes (50) derart befestigt ist, daß die anderen Glieder (51, 52) der Leiter im Verhältnis zum genannten Grundglied (50) frei manövriert werden können, wobei die genannte Wiege (4) sich in einer Lage zwischen den Enden des Grundgliedes (50) befindet und Mittel (6) aufweist, um auf dem genannten Schwenkzapfen (35) in einer Kardanverbindung aufgenommen und festgelegt zu werden; und
       längeneinstellbare Mittel (9) zum Herstellen einer starren, unteren, längeneinstellbaren Verbindung zwischen dem unteren Teil des Grundgliedes (50) der Leiter und den genannnten Anbringungsmitteln (7) unter dem Schwenkzapfen (35), wobei die genannte starre Verbindung (9) dazu bestimmt ist, den Halt und die Stabilität der Leiter (5) ebenso in ihrer Querebene als auch in ihrere Neigungsebene sicherzustellen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel (9) einen beiderseits des Grundgliedes (50) der Leiter (5) gelenkig gelagerten Bügel (93, 94) sowie einen Teleskop-Mittelarm (90) aufweisen, der mit progressiven Sperrmitteln oder einer Bremse (91) versehen ist, um seine Länge einzustellen.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Schwenkzapfen (35) eine Hülse mit vertikaler Achse und kreisförmigem Querschnitt ist, die dazu bestimmt ist, ein unteres Endstück der Mittel (6) aufzunehmen, das oben ein Lager (62) aufweist, in dem in freier Drehung eine Querachse (44) der Wiege (4) angebracht ist, wobei die Achse (44) außerdem eine Befähigung zur Schwingung in dem Lager (62) aufweist.
  4. Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Schwenkzapfen (35) am hinteren Ende einer Längsschiene (2) getragen ist, die auf dem Dach des Fahrzeugs (1) befestigt ist und nach hinten übersteht.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Schwenkzapfen (35) auf der Schiene (2) mittels eines Schlittens (3) derart getragen ist, daß er gemeinsam mit der Leiter (1) und ihrer Wiege (4) zwischen einer hinteren Betriebslage (E) und einer vorderen Transportlage (L) versetzbar ist.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sie Mittel aufweist, um den Schlitten (3) in einer Betriebslage festzulegen, die in Bezug auf die Lage (E) nach vorne versetzt ist.
  7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß sie vor der Lage (L) einen Träger aufweist, der aus Streben (100) und Rollen (101) gebildet ist, auf denen die Leiter (5) vor der Wiege (4) in der Transportlage aufgenommen und befestigt ist.
  8. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die Anbringungsmittel (7) auf einem Arm (8) getragen sind, der hinter dem Fahrzeug unter der Schiene (2) parallel zu dieser und in der selben Vertikalebene befestigt ist, wobei die Anbringungsmittel (7) einen Schieber (70) aufweisen, der auf einer Gleitführung (80) angebracht ist, die auf der Oberseite des Arms (8) eingesetzt ist, und daß dieser Schieber ein Anbringungselement trägt und mit einer Bremse (71) versehen ist, um zu gestatten, ihn an einem beliebigen Punkt der Gleitführung (80) festzulegen.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das genannte Anbringungselement, das auf dem Schieber (70) getragen ist, ein vertikales, zylindrisches Endstück (72) ist, auf dem ein Ring (96) zum Eingriff gelangte der am freien Ende des starren Verbindungseelements (9) vorgesehen ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Verbindungen zwischen einerseits dem Grundglied (50) der Leiter (5) und andererseits den verschiedenen Elementen, an denen sie befestigt ist, nämlich der Wiege (4) und den unteren, starren Verbindungsmitteln (9), mittels Querstangen (43, 95) ausgebildet ist, die quer zu den Holmen des Grundgliedes (50) verlaufen.
EP95460018A 1994-04-18 1995-04-13 Betätigungsvorrichtung für eine Ausziehleiter Expired - Lifetime EP0679794B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9404844 1994-04-18
FR9404844A FR2718789B1 (fr) 1994-04-18 1994-04-18 Dispositif de manÓoeuvre d'échelle à coulisse.

Publications (2)

Publication Number Publication Date
EP0679794A1 EP0679794A1 (de) 1995-11-02
EP0679794B1 true EP0679794B1 (de) 1999-03-31

Family

ID=9462401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95460018A Expired - Lifetime EP0679794B1 (de) 1994-04-18 1995-04-13 Betätigungsvorrichtung für eine Ausziehleiter

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EP (1) EP0679794B1 (de)
AT (1) ATE178386T1 (de)
DE (1) DE69508641D1 (de)
FR (1) FR2718789B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO300513B1 (no) * 1995-04-28 1997-06-09 Raufoss Stigen As Stigerampe beregnet på hurtig nedfelling av en stige
DE19719292C2 (de) * 1997-05-07 2000-11-23 Ziegler Albert Gmbh Co Kg Haltevorrichtung für eine Leiteranordnung auf einem Fahrzeugdach
FR2763990B1 (fr) * 1997-06-02 1999-07-16 France Elevateur Dispositif elevateur de personnel combinant une echelle standard et un vehicule
CN113324504B (zh) * 2021-05-28 2023-06-09 徐工消防安全装备有限公司 一种导轨长度检测装置、检测方法及消防车

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667296A (en) * 1950-02-18 1954-01-26 J H Holan Corp Aerial ladder
US3020972A (en) * 1960-03-07 1962-02-13 John A Hockett Combination utility cart and extension ladder
US3556248A (en) * 1969-06-13 1971-01-19 Adolphas E Brown Folding ladder for a working cart
US3621935A (en) * 1969-09-02 1971-11-23 John J Bode Vehicle mounted ladderlike tower
GB1440804A (en) * 1973-06-27 1976-06-30 Simon Eng Dudley Ltd Access equipment
DE2946521A1 (de) * 1979-11-17 1981-05-27 Alois 7091 Birkenzell Schneider Traktor mit hydraulisch betaetigbarem anbaugeraet
FR2561856A1 (fr) * 1984-03-28 1985-10-04 Fabre Armand Nouvelle remorque agricole pour la cueillette et la taille

Also Published As

Publication number Publication date
ATE178386T1 (de) 1999-04-15
DE69508641D1 (de) 1999-05-06
EP0679794A1 (de) 1995-11-02
FR2718789B1 (fr) 1996-07-05
FR2718789A1 (fr) 1995-10-20

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