EP0402214B1 - Steigschutzvorrichtung zu einer Leiter von einem darüberliegenden Fussboden - Google Patents

Steigschutzvorrichtung zu einer Leiter von einem darüberliegenden Fussboden Download PDF

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Publication number
EP0402214B1
EP0402214B1 EP90401484A EP90401484A EP0402214B1 EP 0402214 B1 EP0402214 B1 EP 0402214B1 EP 90401484 A EP90401484 A EP 90401484A EP 90401484 A EP90401484 A EP 90401484A EP 0402214 B1 EP0402214 B1 EP 0402214B1
Authority
EP
European Patent Office
Prior art keywords
panel
platform
ladder
pedal
floor
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
EP90401484A
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English (en)
French (fr)
Other versions
EP0402214A1 (de
Inventor
Charles Coutier
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.)
Charles Coutier SAS
Original Assignee
Charles Coutier SAS
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
Priority claimed from FR8907395A external-priority patent/FR2647684B1/fr
Priority claimed from FR8907394A external-priority patent/FR2647830B1/fr
Application filed by Charles Coutier SAS filed Critical Charles Coutier SAS
Publication of EP0402214A1 publication Critical patent/EP0402214A1/de
Application granted granted Critical
Publication of EP0402214B1 publication Critical patent/EP0402214B1/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
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/006—Devices for preventing access
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/185—Devices providing a back support to a person on the ladder, e.g. cages
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
    • E06C7/187—Guiding rail

Definitions

  • the present invention relates to the field of industrial security, in particular the security of persons when using ladders, and in particular a device for protecting access to a ladder with the characteristics of the preamble of claim 1.
  • a ladder When a ladder reaches a certain height (generally more than 3 meters) it must include a device to prevent vertical falls.
  • One of these devices consists of a rail located at the center of the ladder along which a carriage can slide, this carriage being connected to a harness worn by the user, locking in the rail during a fall.
  • Another protective device is the provision of a cage (or crinoline) surrounding the ladder.
  • the invention provides a device for protecting access to a ladder from an upper floor through an opening normally covered by a panel, comprising a platform movable between a first position close to the ladder and a second position remote from it, and a railing extending above the level of the platform, in which the platform has means for locking it in its first position, this device comprising, at the upper floor, means for preventing access to the ladder capable of being placed in and out of service, and means for unlocking the platform cooperating with the prevention means when these are in their "in service" position.
  • the prevention means consist of the panel for closing the floor opening.
  • the most frequent application of the invention is that in which the scale does not exceed the level of the floor. Under these conditions, the platform is located under the floor and the railing extends between the floor of the platform.
  • the height separating the platform from the floor is of the order of two meters.
  • the platform includes means for locking it in its first position.
  • the means for unlocking the platform cooperate with the ladder access panel when the latter is in its closed position for access to the ladder.
  • the user of the ladder can only descend after having closed the access opening made in the floor.
  • the means for unlocking the platform cooperate with the panel when the latter is in its closed position for access to the ladder and with the slide when it is inserted into the fall prevention rail.
  • At least part of the railing can be moved from a first position located above the platform and below the level of the floor to a second position where it is located at least partially, above the floor.
  • the means for unlocking the platform cooperate with the railing when the latter is in its second position and with the slide when it is inserted into the fall prevention rail, to obtain the same conditions in this case. which concerns the security to be obtained.
  • the panel is sliding in a structure of the floor which comprises maneuvering means on each of its faces, automatic return means in its closed position and locking means, the return means and locking device with a bolt carried by the horizontal sliding panel associated with a vertical control rod terminated in the lower part by a handle to pull it down, which constitutes one of the means for operating the panel and cooperating in the upper part with a depressing pedal of the rod which constitutes the other means of operating the panel.
  • the pedal is mounted to slide vertically in the panel and to rotate relative to this panel, angular indexing means being provided between the pedal and the panel for allow the pedal to be depressed only in a determined angular position thereof relative to the panel, an elastic return member being coupled between the pedal and the panel to move the pedal away from this position.
  • the examples shown relate to ladders with anti-fall rail, which do not include portions rising above the floor. It is obvious that the elements described are easily transposable on the one hand to crinoline ladders and on the other hand to ladders having an extension above the floor for example when the latter is a walkway along a wall. In the latter case, the means of the invention, in particular the platform, are located at the same level of this floor.
  • openings At an upper floor 1 formed for example by a roadway or a sidewalk, there are openings, generally covered with panels such as 2, through which one can descend into the underground network of urban sewers or more generally of technical pipes. Similarly, in many industrial installations, such openings are made in floors or walkways to give passage to technical circulation corridors, access shafts, ducts, etc.
  • These vertical conduits are generally equipped with ladder bars 3 which, to form a safety ladder comprise a central rail 4 intended to receive a carriage or slide which slides there (or rolls there) freely.
  • This carriage comprises a coupling member of a lanyard which is fixed to a harness with which the user of the ladder is coated. The carriage, in known manner, has the option of stopping in the rail if the user falls.
  • the invention seeks to protect the user when the carriage is placed in the safety rail.
  • a platform 5 mounted on a horizontal frame 6 and able to move along this frame between a position where it is close to the scale and a position where it is spaced from the scale of a sufficient distance to allow the passage of a man between the ladder and the spread platform.
  • a device 7 known in itself recalls the platform 5 in its first position with a time delay allowing sufficient time for the passage of the user both on the descent and on the ascent.
  • a railing 8 is disposed here of fixed way (for example by being sealed to some of the walls of the downspout) to delimit a safety space around the ladder for a person standing on platform 5.
  • the shape of this railing depends well heard from the vertical passage section. It will have at most three sides but may only consist of a barrier parallel to the wall carrying the ladder bars 3 if the side walls of the passage are close enough to each other.
  • the user of the ladder having put on the harness can safely descend the few bars which lead to the platform (which will be for example between 1.50 and 2 meters under the roadway or the floor) .
  • This descent is carried out inside the railing 8 and if a fall occurs, it will be of low height and confined in this space internal to the railing.
  • the user connects the harness to the carriage present at the end of the rail 4. He then pushes the platform 5 backwards by acting at the foot on a pedal 9 a which has the following functions, d 'on the one hand to unlock the platform and on the other hand, to constitute a support to exert the force necessary to repel it.
  • the mechanisms linked to the pedal 9 a for ensuring the locking of the platform, for example to the chassis 6 in its first position, will not be described in detail. It can be a latch operated by the pedal against a return spring. It will also be mentioned that on its underside, the platform 5 has a handle 9 b (see FIG. 2) for unlocking the platform and moving it backwards. Thus the user going up the ladder clears the passage to access the exit. The user having passed under the platform, it is brought against the ladder by means of the return member 7. It will be noted that to reach the wall, the platform has a notch 10 intended for the passage of the rail 4.
  • FIG. 1 there are also shown means for on the one hand forcing the user of the ladder to place themselves in a security situation and on the other hand for ensuring the safety of the users of the floor 1.
  • the opening is closed by a panel 2 which can slide horizontally against a return device in the closed position, not shown.
  • a locking device 22 is provided on one of the edges of this panel 2 and the latter engages automatically.
  • a pedal 23 which will be shown in detail in FIGS. 3 and 4 makes it possible to open this panel.
  • the panel 2 In the closed position, the panel 2 cooperates with a device 24 which is connected to a locking means or latch 25 for blocking the platform 5 in its first position close to the ladder.
  • the members 24 and 25 are shown diagrammatically and can take many embodiments. Mention will be made, for example, of a cam of the device 24 which is actuated by the panel 2 and whose movement is transmitted by a cable 26 in a sheath to a bolt which retracts.
  • a device 27 is connected to the lock 25 by a link 28. This device is operated when the carriage of the safety harness passes through the rail. Its movement can thus be transmitted to a second bolt that would include the lock 25, which retracts thereby.
  • the platform 5 can be moved away from the ladder when the two bolts are retracted, which means that the user of the ladder is in a safe situation (connected to the rail 4) and that the hatch is closed. The safety of floor users is therefore also ensured.
  • the railing 8 is supported by the wall 11, where the bars 3 are located, by means of two slides 12 and 13 guided in slides vertical 14 and 15 fixed to this wall.
  • the slides 12 and 13 are of sufficient length so that they remain fully engaged in the slides 14 and 15 after an increase in the order of the height of the railing 8.
  • the slides 12 and 13 are integral with the railing 8 by lateral structures 16 which will be calculated to provide the assembly with sufficient resistance.
  • a device for balancing the weight of the railing and its slides is symbolized by the two counterweights 17 coupled to the railing 8 by cables 18 passing over pulleys also fixed to the wall 11.
  • the railing 8 then constitutes a protective barrier around the access opening to the vertical passage which remains open during the operations.
  • this barrier only has at most 3 sides if the railing is of square section. It is nevertheless possible to provide on the fourth side an upper bar 20 always situated above the first bar, to which heavy elements (sheets of colored plastic material) 21 can be hung, to materialize the barrier for the view even if it is physically passable.
  • the railing is coupled to a mechanism allowing its automatic exit when the access panel opens (for example by the set of heavier counterweights than the railing itself ).
  • a mechanism for lowering this railing can be provided at the level of the platform 5 to be actuated by the user before he leaves the ladder in the direction of exit.
  • Locking members will also be provided along the elements in relative movement to index them in various positions and immobilize them relatively in these positions. Finally, only part of the railing, or a second railing, doubling the first permanently fixed to the wall 11, can be mobile.
  • Figures 3 and 4 illustrate means for operating the panel 2 which include a pedal for unlocking and actuating it from the upper face and a handle for actuating it from its lower face. They also include optional locking means condemning the possibility of operation from the upper face of the panel.
  • the panel 30 has a recess 38 in which is housed a pedal 39.
  • This pedal is rotatably mounted on a rod 40 by means of a stop ball 41.
  • the rod 40 passes through the panel 30 and comprises a lug 42 radial cooperating with an oblique slot 43 formed in a bolt 44 which can be received by a keeper 45 of the sliding frame when the panel 30 is in the closed position of the opening.
  • a spring 46 tends to constantly push the bolt 44 into the keeper. It is understood that a vertical movement of the rod 40 downwards acts on the bolt which returns to its housing in the panel 30 against the force of the spring 46.
  • the slope of the inclined slot and the force of the spring 46 are chosen so that the movement is reversible and that in the absence of any external force the lug 42 is in its position in FIG. 4.
  • the pedal 39 has a flange 47, comprising a V-shaped notch 48.
  • the panel 30 comprises, in the space which accommodates the flange 47, a projecting element 49 which interferes with this flange for prevent it from going down unless the notch 48 is perpendicular to this projection 49.
  • a spring 50 harnessed between the bottom of the housing and the pedal tends to place the latter in an angular position (for example in abutment on a fixed element not shown) in which the notch 48 is offset relative to the projection 49.
  • the rod 40 is provided at its other end (projecting under the panel 30) with an operating handle 51 making it possible to pull it down and to move the panel 30.
  • FIG. 3 there is shown a lock 56 whose bolt 57 can be moved between an active position in which it is present under the pedal 39 and an unlocking position in which it is outside of this pedal. This lock 56 is accessible from the upper face of the panel 30.
  • the rotation of the order of 30 to 60 °, will be limited by a stop not shown, which stops the pedal in its angular position where the notch 48 is perpendicular to the projection 49.
  • Depression of the pedal is possible, which causes the withdrawal of the bolt 44 out of the keeper 45, by the downward movement of the rod 40 in the bolt 44.
  • the user can still push the panel with the foot to clear access to the ladder or to the lower section of the latter.
  • the need to rotate the pedal to depress it eliminates any risk of inadvertent depressing of the latter at the simple passage of a person.
  • This provision constitutes, in addition to the "security airlock” that the invention creates at the top of a ladder, a means of selective condemnation of access to the ladder preserving the free crossing of this access for any person escaping from the restricted area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Steps, Ramps, And Handrails (AREA)

Claims (9)

  1. Vorrichtung zum Schutz gegen den Zutritt zu einer mit einer Fallschutzschiene oder einem Sicherheitsbügel versehenen Leiter (3) von einer oberen Geschoßdecke (1) durch eine normalerweise mit einer Platte (2) verschlossene Öffnung, umfassend eine Plattform (5), die zwischen einer ersten, der Leiter (3) benachbarten Position und einer zweiten, leiterfernen Position bewegbar ist, und ein Schutzgitter (8), das sich über der Ebene der Plattform (5) erstreckt, dadurch gekennzeichnet, daß die Plattform (5) Mittel (25) zu ihrer Verriegelung in ihrer ersten Position hat und daß die Vorrichtung in Höhe der oberen Geschoßdecke (1) mit Mitteln zur Verhinderung des Zutritts zur Leiter (3) versehen ist, die in und außer Betrieb gesetzt werden können, und mit Mitteln (24,29) zur Entriegelung der Plattform (5), die mit den Mitteln zur Verhinderung des Zutritts zusammenwirken, wenn diese sich in ihrer Betriebsposition befinden.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zur Verhinderung des Zutritts durch die Verschlußplatte (2) der Geschoßdeckenöffnung gebildet sind.
  3. Vorrichtung nach Anspruch 2 zur Anwendung bei Leitern, die mit einer Fallschutzschiene (4) versehen sind, um einen Schieber aufzunehmen, der mit einem von dem Benutzer angelegten Gurtzeug verbunden ist, dadurch gekennzeichnet, daß die Mittel (24) zur Entriegelung der Plattform (5) durch die Platte (2) betätigt werden, wenn diese sich in ihrer die Zutrittsöffnung zur Leiter verschließenden Lage befindet.
  4. Vorrichtung nach Anspruch 1 zur Anwendung bei Leitern, die mit einer Fallschutzschiene (4) versehen sind, welche zur Aufnahme eines Schiebers bestimmt ist, der mit einem von dem Benutzer angelegten Gurtzeug verbunden ist, dadurch gekennzeichnet, daß die Mittel zur Verhinderung des Zutritts zur Leiter (3) zumindest einen Teil des Schutzgitters (8) umfassen, das von einer über der Plattform (5) und unter der Ebene (N) der Geschoßdecke (1) liegenden ersten Position in eine zweite Position verfahren werden kann, in der es sich zumindest teilweise über der Geschoßdecke (1) befindet und mit Mitteln (29) zur Entriegelung der Plattform (5) zusammenwirkt.
  5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Mittel (25) zur Verriegelung der Plattform (5) auch mit einem Entriegelungsauslöser (27) zusammenwirken, der das Vorhandensein des Schiebers in der Fallschutzschiene (4) erfaßt.
  6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Platte (2) in einer Konstruktion der Geschoßdecke (1) verschiebbar ist und Mittel (39,51) zum Bedienen an ihren beiden Seiten, Mittel zur automatischen Rückstellung in ihre Schließlage und Verriegelungsmittel hat, die einen von der Platte (30) getragenen, horizontal bewegbaren Riegel (44) umfassen, der mit einer vertikalen Betätigungsstange (40) verbunden ist, die in ihrem unteren Abschnitt mit einem Griff (51) endet, um sie nach unten zu ziehen, wobei der Griff eines der Mittel zum Bedienen der Platte bildet, und die in ihrem oberen Abschnitt mit einem Pedal (23,39) zum Niederdrücken der Stange zusammenwirkt, das das andere Mittel zum Bedienen der Platte bildet.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Pedal (39) in der Platte (30) vertikal bewegbar und relativ zu dieser Platte drehbar gelagert ist, wobei zwischen dem Pedal und der Platte Mittel (48,49) zur Winkeleinstellung vorgesehen sind, die dafür sorgen, daß das Pedal relativ zur Platte nur in einer dafür bestimmten Winkelposition nach unten gedrückt werden kann, wobei zwischen dem Pedal und der Platte ein elastisches Rückstellorgan (50) eingehängt ist, um das Pedal von dieser Position entfernt zu halten.
  8. Vorrichtung nach Anspruch 7, gekennzeichnet durch Mittel (57) zum Blockieren des Pedals in der Hochstellung, die einem Schloß (56) zugeordnet sind, das von der Oberseite der Platte (30) zugänglich ist.
  9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Plattform (5) an ihrer Unterseite und an ihrer Oberseite Betätigungsmittel (9a,9b) hat, um sie von der ersten in die zweite Position zu verfahren, und ein Organ (7) zur automatischen Rückführung aus der zweiten in die erste Position.
EP90401484A 1989-06-05 1990-06-01 Steigschutzvorrichtung zu einer Leiter von einem darüberliegenden Fussboden Expired - Lifetime EP0402214B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8907395A FR2647684B1 (fr) 1989-06-05 1989-06-05 Dispositif de protection d'un usager lors de son acces a une echelle de securite a rail anti-chute a partir d'un plancher superieur
FR8907394 1989-06-05
FR8907394A FR2647830B1 (fr) 1989-06-05 1989-06-05 Dispositif de sectionnement d'un passage vertical equipe d'une echelle
FR8907395 1989-06-05

Publications (2)

Publication Number Publication Date
EP0402214A1 EP0402214A1 (de) 1990-12-12
EP0402214B1 true EP0402214B1 (de) 1994-12-14

Family

ID=26227368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401484A Expired - Lifetime EP0402214B1 (de) 1989-06-05 1990-06-01 Steigschutzvorrichtung zu einer Leiter von einem darüberliegenden Fussboden

Country Status (5)

Country Link
EP (1) EP0402214B1 (de)
AT (1) ATE115676T1 (de)
DE (1) DE69015001T2 (de)
ES (1) ES2066162T3 (de)
WO (1) WO1990015219A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309892U1 (de) * 1993-07-02 1993-10-07 Söll GmbH, 95028 Hof Ruhepodest
CN102889052B (zh) * 2012-08-29 2015-06-17 广东明阳风电产业集团有限公司 一种风力发电机塔筒顶部爬梯安全防护装置
DK2902625T3 (en) * 2014-02-04 2018-01-02 Siemens Ag Hatch actuator for activating a hatch of a hatch
FR3090713A1 (fr) 2018-12-14 2020-06-26 Batiroc Protect Dispositif de protection antichute amovible vis-à-vis d’ouvertures constituées au sol, servant de lieu de passage et adaptable à différentes dimensions d’ouvertures

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535544A (en) * 1948-01-09 1950-12-26 William D Mckinley Safety ladder
US3038555A (en) * 1960-02-18 1962-06-12 William A Da Lee Inc Retractable safety landing for an access tube
FR2495684A1 (fr) * 1980-12-09 1982-06-11 Risacher Marcel Charles Protecteur coulissant et amovible pour echelles de moyenne et grande hauteur a un ou plusieurs elements
FR2558890B1 (fr) * 1984-01-27 1986-06-20 Coutier Charles Ets Dispositif pour condamner l'acces aux echelles a crinoline
FR2622631B1 (de) * 1987-10-30 1990-11-30 Coutier Ind
FR2635357B1 (fr) * 1988-08-09 1990-10-26 Coutier Ind Dispositif de condamnation de l'acces inferieur d'une echelle

Also Published As

Publication number Publication date
WO1990015219A1 (fr) 1990-12-13
ATE115676T1 (de) 1994-12-15
DE69015001D1 (de) 1995-01-26
DE69015001T2 (de) 1995-07-20
ES2066162T3 (es) 1995-03-01
EP0402214A1 (de) 1990-12-12

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