EP0343041B1 - Von einem elektrischen Motor angetriebene Leiter - Google Patents

Von einem elektrischen Motor angetriebene Leiter Download PDF

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Publication number
EP0343041B1
EP0343041B1 EP19890401305 EP89401305A EP0343041B1 EP 0343041 B1 EP0343041 B1 EP 0343041B1 EP 19890401305 EP19890401305 EP 19890401305 EP 89401305 A EP89401305 A EP 89401305A EP 0343041 B1 EP0343041 B1 EP 0343041B1
Authority
EP
European Patent Office
Prior art keywords
ladder
claiming
motorization
contactor
fixed
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
EP19890401305
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English (en)
French (fr)
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EP0343041A1 (de
Inventor
Serge Perin
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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0343041A1 publication Critical patent/EP0343041A1/de
Application granted granted Critical
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Classifications

    • 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
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
    • E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
    • E06C9/12—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members laterally displaceable

Definitions

  • the present invention relates to a ladder of the industrial type comprising two wheels making it possible to move it and a trolley provided with four castors sliding on an IP N.
  • a ladder of the industrial type comprising two wheels making it possible to move it and a trolley provided with four castors sliding on an IP N.
  • the object of the present invention is to avoid these drawbacks by producing a motorized ladder of a new type which eliminates any fatigue on the part of the user: he can at his will perform his work at the desired height no longer needing to go down, these movement operations are done with the right hand which activates the push buttons to start at the exact place where it is: forward, reverse.
  • the non-negligible advantage of this invention consists in starting and stopping without any sudden, securing the user for the risk of falls, this achievement is due to the installation of an electronic frequency converter from 0 to 120 hertz him even controlled by a microprocessor which regulates the rise and fall times of the motor supply.
  • Another advantage for the user it has a safety ramp specially designed to enlarge its working place allowing it to move without narrowness when it is occupied, and high enough so that it can lean while taking thus a good working position.
  • a safety device is fixed by two movable yokes, called a hanging bar provided with a limit switch which automatically cuts the power to the motor, this in case a third party is busy working in the passage of the ladder.
  • the wiring along the handrail is 10 volts, eliminating the risk of electric shock.
  • the subject of the invention is a motor assembly of a ladder provided in the upper part of a carriage moving along a rail and in the lower part of two wheels integral with each of the two uprights, characterized in what it consists of a motor assembly comprising belt pulley (4), gearmotor (6) (7) mounted on a support frame (5) allowing it to be fixed to the uprights (1) of the ladder by housing bolts under said ladder and supplied by a supply cable (20) and by a conductive sheath (21) connected or rail (19) by supports (29) and in which are received friction rollers arranged at the top of the supply cable, the control being ensured by contactors (12) forward, reverse according to other characteristics:
  • an electronic variator (15) is provided placed in a metal box at the top of the scale and fixed by flat iron flanges incorporating a microprocessor controlling the ascents and descents of the speed of rotation of the gearmotor group (6) (7) in forward and reverse.
  • Safety means are further provided in the form of a square tube frame (14) provided with two horizontal protection plates (30) articulated on two movable yokes (13) fixed by screws under the uprights (1) of the ladder for actuating a limit switch (18) which cuts the supply as soon as there is an obstacle.
  • It comprises a protection formed by a ramp (11) forming a railing through which passes the power cable (20) held by arms (13) superimposed connection support.
  • An engine ventilation casing (8) is provided in expanded metal fixed by screws on the casing (5).
  • the pushers (12) are arranged on three levels at the connecting arms (13) of the ramp (11) grouped by two with indication carriers in insulating material and indicating forward and reverse.
  • the manual scale is transformed into a motorized scale by dismantling the two wheels (3) and adding a grooved pulley (9) fixed to the spacer tube on which two large ones have been welded 5 mm sheet washers pierced with three holes and fixed to the two flanges of the two wheels by bolts making them drive.
  • the chassis structure is of robust design, the assembly made of 5 mm sheet steel and assembled by bolts, an axis (27) of 18 mm placed transversely between the two flanges (5) positions the support sheet (26) on which is fixed the motor (6) and the reduction gear (7), this element being movable around said axis (27) allows the tension of the belt (4) by a locking screw with wings (25) connecting the element mobile attachment of the engine to the frame (28).
  • the power supply is obtained by mounting a PVC sheath (21) spaced 0 m 25 from the IPN (19) and fixed by supports (29) as shown in Figure 4.
  • each of the scales is then adjusted to cover a rolling distance of, for example, 10 meters.
  • a device in rectangular tube (31) 40 ⁇ 20 ⁇ 2 with articulation (32) and mounted on a roller (35) as shown in FIG. 7 provided with an antenna (33) of 0 , 40 m and on the other side of a contractor (34) is fitted to the bottom of the upper carriage (16) by screwing; thus at the end of the travel the tip of the antenna (33) of a ladder touches the limit switch (34) with rod opposite the ladder which cuts the supply.
  • This safety means was provided in front of the ladder in the form of a hinged square tube frame coming to meet as soon as there is an obstacle a limit switch which cuts the power supply and at the end of the rail ( 19) is provided a fixed antenna (33) actuating the contractor (34) of the first scale, similarly at the end of the rail a fixed antenna (33) is provided intended to actuate a second contractor (34) provided on the last ladder opposite.
  • the invention also provides a rear safety device in the form of a flexible cover (36) illustrated in FIG. (8) fixed on the protective cover (5) of the existing engine assembly coming to meet as soon as there is an obstacle a limit switch (37) thus securing the reverse of the ladder.
  • a time switch is attached near the electrical connection box; this being set for the daily working time is cut in the evening and is reset in the morning.

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

Claims (10)

1. Motorangetriebene Leiter, Typ; versehen auf dem oberen Teil mit einem sich auf Schienen bewegenden Fahrgestell, und auf dem unteren Teil mit zwei formsehlüssigen Rädern verbunden mit jedem Balken.
Es besteht aus einem Motor mit Scheibe, Keilriemen, aus einem auf einem Stützchassis aufgestellten Getriebemotor, den man auf den Leiterholmen mit Schrauben fixieren kann unter den sogenannten Leiter.
Elektrische Versorgung des Motors durch ein Kabel und ein Kabelführendes PVC Rohr, welches mit Haltern and der Führungsschiene verbunden ist, und in welchen Stromabnehmerrollen sich befinden. Die Steuerung erfolgt durch einen Vor-und Rückwärtsgang Schalter.
2. In einem Metallgehäuse oberhalb der Leiter befindet sich ein Elektro-Variator. Derjenige ist mit zwei Klemmen aus Flacheisen befestigt und beeinhaltet ein Mikroprozessor, der das Auf-und Ab der Undrehungsgeschwindigkeiten des Getriebemotors im Vor-und Rück wärtsgang steuert.
(Nach Patentanspruch 1)
3. Die Sicherheitsmassnahmen sind wie folgt vorgesehen: Ein Rahmen aus Vierkantrohr, versehen mit zwei waagerechten Stützflacheisen, die an zwei Gelenken unterhalb des Leiterträgers beweglich angeschlossen sind, um einen Endschalter zu bestätigen, der die Stromversorgung unterbricht, wenn es ein Hindernis erscheint.
(Nach Patentanspruch 1)
4. Es besteht aus einer Rampe mit Schutzriegel, in der Versorgungskabel durchgezogen wird.
(Nach Patentanspruch 1)
5. Ein Belüftungsgehäuse aus Streckmetall ist am Motorgehäuse verschraubt.
(Nach Patentanspruch 1)
6. Die Knopfschalter, jeweils zwei, sind auf drei Niveaus an den Verbindungsärmen fixiert, mit Datenträgern aus Isoliematerial, die den Vor-und Rückwärtsgang anzeigen.
(Nach Patentanspruch 1 und 4)
7. Ein Spannsystem erlaubt das Spannen und Das Abspannen des Keilriemens. Dieses Spannen erfolgt durch eine Flügelschraube, die sich zwischen den Festrahmen und den Motorrahmen transversal dank einer Achse sich bewegt.
(Nach Patentanspruch 1)
8. Um einen Zusmmenstoss der Leiterm zu vermeiden, wird ein artikuliertes Vierkantrohrsystem 40 × 20 × 2 auf Rollen montiert.
(Nach Zeichnun 7) Dieses System ist an einer Seite mit einer 0,40 Antenne und an der anderen Seite mit einem Schalter versehen, der unten and dem oberen Schienenwagen angebracht und verschraubt ist. Somit, am Ende der strecke betätigt die Antennenspitze einer Leiter den gegenüberliegenden Abschalter.
(Nach Patentanspruch 1)
9. Beim Rückwärtsfahren der Leiter besteht eine Sicherheitseinrichtun in Form eines Flexiblen Schutzbügels befestigt an der Motorschutzhaube. Bei Berührung betätigt der Schutzügel einen Endabschalter. Somit wird die Sicherheit beim Rückwärtsfahren gewärleistet.
(Nach Patentanspruch 1)
10. Um eine Ueberhitzung der elektrischen Elemente des Elektrovariators zu verhindern ist ein Zeitschalter angebracht am elektrischen Anschlusskasten. Der Zeitschalter ist am Tagrythmus eingestellt und schaltet automatisch ein und aus.
EP19890401305 1988-05-11 1989-05-10 Von einem elektrischen Motor angetriebene Leiter Expired - Lifetime EP0343041B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806343 1988-05-11
FR8806343A FR2631376B1 (fr) 1988-05-11 1988-05-11 Ensemble de motorisation pour echelle supportee par rail superieur et roues inferieures

Publications (2)

Publication Number Publication Date
EP0343041A1 EP0343041A1 (de) 1989-11-23
EP0343041B1 true EP0343041B1 (de) 1991-04-03

Family

ID=9366214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890401305 Expired - Lifetime EP0343041B1 (de) 1988-05-11 1989-05-10 Von einem elektrischen Motor angetriebene Leiter

Country Status (3)

Country Link
EP (1) EP0343041B1 (de)
DE (1) DE68900055D1 (de)
FR (1) FR2631376B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677812A5 (de) * 1989-01-18 1991-06-28 Schreyer Const Metall

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232375A (en) * 1964-03-13 1966-02-01 William Hugh Brown Self-propelled scaffold
US3340960A (en) * 1965-12-13 1967-09-12 Louis F Wilson Ladder
US3735838A (en) * 1972-05-22 1973-05-29 Everett Sound Machine Works In Wheeled ladder with a weight actuated self-locking wheel thereon

Also Published As

Publication number Publication date
FR2631376B1 (fr) 1990-08-17
EP0343041A1 (de) 1989-11-23
DE68900055D1 (de) 1991-05-08
FR2631376A1 (fr) 1989-11-17

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