EP3819457A1 - Sécurité d'échelle pour trous d'homme - Google Patents

Sécurité d'échelle pour trous d'homme Download PDF

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Publication number
EP3819457A1
EP3819457A1 EP20205275.9A EP20205275A EP3819457A1 EP 3819457 A1 EP3819457 A1 EP 3819457A1 EP 20205275 A EP20205275 A EP 20205275A EP 3819457 A1 EP3819457 A1 EP 3819457A1
Authority
EP
European Patent Office
Prior art keywords
ladder
traverse
securing
receptacle
boom
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
EP20205275.9A
Other languages
German (de)
English (en)
Other versions
EP3819457B1 (fr
Inventor
Wolfgang Wille
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
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Publication of EP3819457A1 publication Critical patent/EP3819457A1/fr
Application granted granted Critical
Publication of EP3819457B1 publication Critical patent/EP3819457B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/10—Manholes; Inspection openings; Covers therefor
    • B65D90/105—Manholes; Inspection openings; Covers therefor for underground containers
    • 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
    • E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
    • E06C1/36—Ladders suspendable by hooks or the like
    • 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
    • E06C7/188—Accessories for temporary stabilising a ladder, e.g. temporary attaching devices

Definitions

  • the invention relates to a ladder safety device which is intended to securely hold a ladder inserted into a shaft and used for entry into the shaft.
  • the shaft can be, for example, a sewer shaft or a shaft which, in larger tank systems, leads into the interior of an oil separator. Access to the shaft may be necessary as part of regular inspection work or for maintenance work.
  • the invention is based on the object of specifying a ladder safety device for entry into a shaft, which enables an entry ladder to be arranged in a shaft as securely as possible. Furthermore, the invention is based on the object of specifying an entry arrangement which enables entry into the shaft as safely as possible for accessing a shaft.
  • the invention proposes to hold the ladder securely in the area that is at the level of the manhole's entry opening. Because the ladder is held securely at this point, the ladder can reliably be prevented from slipping even if the floor on which the ladder rests is unfavorably designed or slippery.
  • the invention is based on the idea that as a classic security measure, a security frame is in any case built over the entry opening of the shaft.
  • the three support legs of a tripod are evenly distributed around the entry opening on a solid surface.
  • two of the support legs of the securing frame are connected to one another by a traverse.
  • the cross-member runs close to the edge above the entry opening or even next to and above the entry opening.
  • a boom extends from the traverse and runs transversely to the traverse. It is arranged in the middle area of the cross member and therefore runs, for example, in the direction of the central axis of the shaft or the center of the entry opening.
  • the boom has a receptacle at its free end, which is remote from the traverse, above the entry opening of the shaft.
  • a ladder rung of the ladder inserted in the shaft can be accommodated in this receptacle.
  • the receptacle has a U-shaped cross section which is dimensioned so large that a ladder rung can be accommodated therein.
  • the receptacle is designed in such a way that the ladder - and thus the ladder rung located in the receptacle - is supported or secured against downwardly acting forces.
  • the U-shaped cross section of the receptacle is open at the top.
  • the ladder rung can be easily hooked into the receptacle from above and is secured against downward movements by the receptacle, as would be feared if the ladder slipped down below.
  • a securing element can be provided which securely fixes the ladder rung within the receptacle.
  • the boom can be adjustably fixed on the traverse, so that the distance between the receptacle, which is located at the end of the boom, and the traverse can be adjusted.
  • This enables optimal adaptation to the dimensions of the securing frame and to the particular conditions of the shaft and its entry opening, for example adaptation to the respective diameter of the entry opening.
  • the receptacle Due to the adjustability of the boom, the receptacle can be arranged as close as possible to the edge of the shaft wall, on the one hand to be able to reliably grasp the ladder rung, and on the other hand to keep the ladder as close as possible to the shaft wall and to leave as large a portion of the access opening as possible free to allow entry - and exit for the staff, who often still carry equipment on their body, as easily and safely as possible.
  • the receptacle can advantageously be formed by a U-profile rail.
  • the ladder is supported over the largest possible area and is safe from tilting.
  • the surface pressure between the seat and the ladder rung is considerably reduced by a longer profile rail compared to a hook, so that the pressure loads acting on the rung and the seat can be kept as low as possible in order to treat these elements as gently as possible.
  • the traverse can be designed as universally applicable as possible, in that it can be adapted to differently designed securing frames or also to the fact that one and the same securing frame is set up differently at different locations, for example the three support legs of a tripod are oriented at different angles depending on the local conditions .
  • the traverse can advantageously have a middle piece, and at least one, but advantageously both, outer contact pieces can adjoin this middle piece in an adjustable manner in the longitudinal direction of the traverse. In this way, the effective length of the traverse between its two contact pieces can be adjusted and accordingly adapted to the respective distance at which the connection points are located where the traverse is to be connected to the support legs of the securing frame. If two outer contact pieces are used, i.e. the traverse is telescopic in three parts and not just in two parts, the center piece of the traverse can always be positioned so that the boom and the receptacle are centered on the entry opening.
  • a particularly fine length adjustment of the traverse can take place in that a contact piece is connected to the central piece of the traverse by means of a threaded spindle. Depending on the thread pitch, the contact piece can accordingly be adjusted in very small steps. If the contact piece is mounted such that it can rotate with respect to the spindle, it can maintain its alignment while the spindle is being adjusted, so that in this case even a stepless length adjustment of the traverse is possible.
  • the length of the traverse can be adjusted particularly quickly by connecting a contact piece to the middle piece by means of a perforated rail.
  • both contact pieces can be adjusted accordingly and the hole spacing for one contact piece is different are selected than for the other contact piece, changes in length of the traverse can be made in very small steps through different combinations, even in this embodiment.
  • the contact pieces can each pivot about a lying axis, that is to say angularly movable, connect to the middle piece, so that they can be adapted to support legs of the securing frame that are at different inclinations. If, depending on the local conditions, the securing frame is set up sometimes with steep and sometimes with flatter supporting legs, this ensures that the system pieces can be placed on their respectively assigned supporting leg without any problems.
  • the joint can be arranged outside of the contact piece, namely between the contact piece and the middle piece of the traverse, or at almost any point within the contact piece, so that the angle adjustment between the middle piece of the traverse and the support leg of the securing frame is made possible in any case.
  • Such mobility can be made possible, for example, in that the two system pieces each connect to the center piece of the crossbeam by means of a ball joint. If the length of the traverse is adjusted with the aid of a spindle, the ball-and-socket bearing means that the two contact pieces can also maintain their alignment during the length adjustment and thus enable the continuous length adjustment of the traverse.
  • the traverse can advantageously have a transverse pipe section through which the boom extends. In this way, a reliable and resilient guidance of the boom is given. Bores in the pipe section and in the boom are provided in this embodiment and are arranged in such a way that, depending on how far the boom is displaced within the pipe section, they are aligned with one another. By means of a safety bolt the boom can be set in this perforated rail-like adjustment in the desired position in order to determine the effective length of the boom - that is, the distance between the crossbeam and receptacle - and to set the receptacle for the ladder rung in a suitable position.
  • the contact pieces can advantageously be fixed on the support legs of the securing frame.
  • the crossbeam is not simply adjusted and extended outward until the contact pieces come against the support legs of the safety frame and the support legs reach behind in an L-shape or around a U-shape, but rather they are fixed to the support legs, so that vibrations acting from the outside or an accidental step on the securing frame cannot lead to the traverse becoming detached from the securing frame.
  • Rapid handling of the ladder securing device according to the invention is supported by the fact that the contact pieces are not fixed on the support legs of the safety frame with the aid of safety ropes that would have to be looped around the contact pieces and the support legs and knotted. Rather, a bore can advantageously be provided in each of the contact pieces and each contact piece can be assigned a securing bolt which can be inserted into this borehole.
  • the present proposal is based on the fact that the support legs of the tripods used in practice can be adjusted in length in a manner known per se and likewise each have a plurality of holes. A securing bolt can therefore extend through the contact piece and a support leg of the tripod and thus reliably fix the traverse on the tripod.
  • a clamp, a clamping fist or the like to fix the contact pieces, the quickest and most uncomplicated handling and the Positive locking ensures a highly resilient and reliable fixation.
  • the contact pieces each have a clamp with an adjustable opening width, i.e. are designed in the manner of the clamp already mentioned above, the clamp being intended to encompass a support leg of the securing frame.
  • a contact piece can be opened and closed on the one hand in order to be able to be attached to a support leg or removed from the support leg, and there is also the possibility of adapting the contact piece to different cross-sectional dimensions and cross-sectional geometries of the support leg.
  • the traverse can be mounted on securing frames of different designs, namely for example different manufacturers, different years of construction or the like, that is to say on securing frames whose support legs are designed differently.
  • the support legs can differ, for example, with regard to the basic geometric shape, if they are designed, for example, as a hollow profile with a circular, oval or square cross-section. Or they can also be designed differently with the same basic geometric shape solely due to different dimensions. These differences can be compensated for by the adjustable opening width and the contact piece can be securely fixed on the respective support leg.
  • the individual clamp itself does not lie in a form-fitting manner, but rather in a force-fitting manner on the support leg of the securing frame.
  • the support legs of a securing frame typically do not run parallel to one another but rather spread apart.
  • the length adjustment of the traverse is therefore adapted to a distance that two support legs have at a certain height from one another. This ultimately results in a very secure, form-fitting fixing of the traverse on the securing frame even when using clamps, since the two clamps on the support legs cannot move either up or down.
  • the adjustable opening width can be adjusted with a spindle or screw like a vice.
  • the clamp can, however, also be adjustable in the manner of an eccentric tensioning lever. Both can also be provided in combination, so that a basic adjustment of the opening width can be set for example by means of the spindle or screw and the subsequent, fixed contact of the contact piece on the support leg takes place by means of the eccentric clamping lever.
  • the receptacle can advantageously have a securing element which is arranged at a distance from the base of the U-shaped cross section of the receptacle, so that between the securing element and the base there is sufficient free space in which the ladder rung can be located.
  • the securing element can either reduce the clear distance between the two opposite legs of the U-shaped cross-section so much that this clear distance is less than the diameter of the ladder rung, or it can bridge the two opposite legs and connect them to one another, so that at least the Ladder rung is arranged secured in the receptacle. From this securing position, however, the securing element can be removed or at least moved out and assume a so-called release position, so that the ladder rung can be guided out of the receptacle.
  • securing bolts can advantageously be used as securing elements for securing conductors be used.
  • the handling of a second component in the form of a nut and possibly the handling of an additional tool can advantageously be avoided by a corresponding design of the securing bolt.
  • securing bolts can be achieved, for example, in that they are designed as so-called tilting bolts, i.e. have an articulated bracket that is oriented transversely to the securing bolt and prevents the securing bolt from being pulled out of its secured position. If this tab is pivoted in the longitudinal direction of the securing bolt, however, it can be pulled out of one or more bores through which it extends and brought into a release position.
  • a safety bolt can be provided with a spring catch which automatically assumes a safety position and can be moved against the spring action in order to be able to guide the safety bolt into its release position.
  • the securing element of the receptacle is designed as a securing bolt, it can advantageously be inserted into two aligned bores which are arranged in the two opposite legs of the U-shaped cross section of the receptacle.
  • a safety bolt can advantageously be connected to another component of the ladder safety device by means of a lifeline.
  • the lifeline can be designed as a cord, a small chain or the like and allows a comparatively free movement of the safety bolt, while on the other hand it secures the safety bolt against loss, since it is and remains captive to the corresponding component of the ladder fuse.
  • the receptacle has a U-shaped cross section in order to be able to arrange the ladder rung therein.
  • the receptacle can advantageously be oriented in such a way that the U-shaped cross section is open at the top. In this way, problem-free and safe handling is supported: the ladder rung can first be hooked into the holder from above. Even if the ladder should begin to slide away immediately afterwards, where it may stand up on a slippery floor, the ladder rung is securely held in the receptacle, even if an additionally provided securing element which the ladder rung in. Has not yet been attached to the receptacle the recording secures.
  • an entry arrangement can be created which is used to enter a shaft and offers the personnel entering the shaft a particularly high level of safety, since the ladder used is held securely. Even if it begins to slide away on a slippery surface, it is immediately held on the rung, which in turn is secured in the holder of the ladder safety device, so that the ladder as a whole cannot slip significantly.
  • an entry arrangement can advantageously have a fall safety device in order to create a safe area outside the safety frame from which a person can be prevented from falling into the interior of the safety frame and thus possibly into the shaft.
  • the fall protection can in principle be designed like the crossbeam of the ladder protection, so that it can connect two adjacent support legs of the safety frame to one another as a cross bar and can be fixed to these two support legs.
  • the fall protection can, however, be designed more simply than the crossbeam of the ladder protection, as the fall protection does not require a boom. so that the boom itself and the connection means provided on the traverse do not have to be present for the fall protection. Since the fall protection device is preferably mounted on the securing frame at a greater height than the ladder protection device, the center piece of the fall protection device is typically shorter than the center piece of the crossbar of the ladder protection device.
  • the fall protection is not arranged between the same two support legs as the ladder protection, so that entry into the shaft is not hindered by the fall protection.
  • the fall protection is advantageously arranged immediately adjacent to the ladder protection, i.e. on the one hand adjoins a support leg on which the ladder protection is also attached. The opposite end of the fall protection device, however, connects to an adjacent support leg.
  • the fall protection creates a safe area in the vicinity of the entry area, so that, for example, a person who does not enter the shaft is protected from falling into the shaft in this safe area. Even the person who is to enter the shaft can advantageously not be in the entry area, but rather next to it in the safe area, for example to put on the protective clothing that is prescribed for a stay in the shaft.
  • a safety frame is also referred to as a tripod, which serves to carry the safety rope for the personnel entering the shaft or at least to deflect it by means of a deflection device such as a deflection pulley.
  • the designation of the safety frame as a tripod comes from the fact that it is common in practice three-legged safety racks can be used. In view of the fact that the safety racks usually have to be carried a little and the length of their support legs has to be adjusted, tripods have established themselves as safety racks in practice, as they are as light as possible and, due to the lowest possible number of support legs, they are quick to set up of the support frame and at the same time offer a high degree of stability.
  • the traverse of the ladder fuse can be placed with the two contact pieces on two support legs of a tripod. If, different from a "real" three-legged tripod, a support frame with a different number of support legs should be used, but with at least two support legs, the ladder protection according to the invention can also be used, since the two contact pieces can be placed on two support legs of this safety frame.
  • the designation of the safety frame as a "tripod" and its repeated mention in the context of the present proposal accordingly does not limit the use of the ladder safety device according to the invention to use in support frames with only three support legs.
  • Fig. 1 shows a ladder fuse 1, which essentially consists of four components: a traverse 2 has a contact piece 3 at each of its two ends. The attachment pieces 3 close over in Fig. 1 Threaded spindles (not shown) on a center piece 4 of the crossbeam 2, so that the effective length of the crossbeam 2 can be adjusted.
  • the conductor fuse 1 has a bracket 5 which runs transversely to the center piece 4 and at one end carries a receptacle 6 which is designed as a U-profile rail with an upwardly open cross-section.
  • the center piece 4 has a comparatively short pipe section 7, which runs transversely to the longitudinal axis of the center section 4 and serves as a guide for the boom 5 inserted into the pipe section 7.
  • the boom 5 is provided with a plurality of vertically extending bores 8, and such a bore 8 is also provided in the pipe section 7.
  • a securing bolt 9 extends through the bore 8 of the pipe section 7 and an aligned bore 8 of the boom 5.
  • securing bores 10 While the bores 8 are used to adjust the boom 5, bores that are aligned with each other in the two opposite legs of the receptacle 6 are referred to as securing bores 10, since they serve to receive a securing bolt after the rung of a ladder into the Recording 6 has been attached.
  • the contact pieces 3 each end with a contact angle 11. In this way, you can partially grip a support leg of a securing frame in a form-fitting manner.
  • the contact angle 11 which is designed as a V-shaped profile element with a 90 ° angle, can rest on two side surfaces of the support leg.
  • Fig. 3 shows that the contact angles 11 of the contact pieces 3 are each provided with a securing hole 10. This is used to securely fix the contact piece 3, namely its contact bracket 11, to a support leg of a safety frame by means of a securing bolt, namely with the aid of bores that such a support leg has in order to enable telescopic length adjustability of the support leg.
  • the contact angles 11 are rigidly connected to a pipe section which also forms part of the respective contact section 3 and is aligned in the drawings as an extension of the middle section 4.
  • the mentioned spindle has a ball joint towards the respective contact piece 3, so that the inclination of the contact piece 3 can be adapted to the course of the respective support leg of the securing frame in such a way that the contact angle 11 covers the entire surface as possible rests against the support leg.
  • a joint for example the aforementioned ball joint, can, however, also be provided within the contact piece 3, for example between two sections of the pipe section or between the pipe section and the contact bracket 11.
  • Fig. 4 shows a circular entry opening 12 of a shaft from above.
  • a safety frame 14 in the form of a tripod is set up above the entry opening 12, the three support legs 15 of which are set up distributed around the entry opening 12.
  • Between two support legs 15 is based on the Figs. 1 to 3 described Ladder fuse 1 attached, which for reasons of clarity in Fig. 4 is shown greatly simplified.
  • the - in Fig. 4 not visible - attachment pieces 3 of the traverse 2 to the two support legs 15.
  • the boom 5 extends over the entry opening 12 so that the receptacle 6 is located above the entry opening 12, specifically close to the edge, so that a ladder 17 secured by means of the receptacle 6, which is inserted into the shaft, is in the area of the entry opening 12 leaves the largest possible cross-sectional proportion of the entry opening 12 free.
  • Fig. 5 shows the entry arrangement of Fig. 4 in the manner of a vertical section which also extends downward through a shaft 16.
  • the ladder fuse 1 including its receptacle 6 is arranged at a distance above the ground and the entry opening 12.
  • the securing bores 10 can be seen in the contact angles 11.
  • the spindles, which are arranged between the center piece 4 and the two contact pieces 3 for adjusting the length of the cross member 2 and each have a ball joint, are shown in FIG Fig. 5 indicated by a line. Should a ladder 17 placed in the shaft 16 slip, possibly while personnel are on the ladder 17, the angle of inclination of the ladder 17 will change and the top rung, which is accommodated in the receptacle 6 of the ladder fuse 1, will lower .
  • the center piece 4 of the cross member 2 will form an axis of rotation about which the boom 5 pivots in the direction that the receptacle 6 is moved downwards.
  • the aforementioned ball bearings in the cross member 2 allow the pivoting movement without plastic deformation or damage to elements of the conductor fuse 1 occurring.
  • the contact of the receptacle 6 or the boom 5 with the edge of the entry opening 12 limits this pivoting movement and thus also the extent by which the ladder 17 can slip away.
  • the actual height at which the receptacle 6 is located is influenced on the one hand by the installation of the securing frame 14, and on the other hand by the design of the ladder 17, for example the distance between the individual rungs and the possibility of how inclined the ladder 17 within the shaft 16 can be asked.
  • the ladder fuse 1 can be arranged so flat on or just above the ground that the boom 5 rests flat or with a very slight incline on the edge of the entry opening 12 from the start and the ladder 17 accordingly is secured free of play.
  • a second embodiment of a conductor fuse 1 is shown, in which comparable components are identified with the same reference numerals as in the first embodiment of FIG Figs. 1 to 5 .
  • the second embodiment of the Fig. 6 differs from this in the design of the crossbeam 2, in particular in the connection of the contact pieces 3 to the center piece 4.
  • the contact pieces 3 instead of a pipe section, the contact pieces 3 each have two parallel, upright flat irons, which are each attached to a contact bracket 11 as hinge brackets 18 , extend in the direction of the middle piece 4 and each have a securing hole 10.
  • the two securing bores 10 of the two joint brackets 18 located on the same contact bracket 11 are arranged in alignment with one another.
  • a threaded spindle 19 which in Fig. 6 is shown screwed almost completely into the middle piece 4 and carries a joint head 20 at its end.
  • the joint heads 20 are each designed as a sleeve with a central through hole 21, and the spindles 19 are in such a rotational position that the through hole 21 is aligned between them the two securing bolts 11 of the two joint plates 18 of an abutment piece 3 can be arranged.
  • a securing bolt can then be guided through these three aligned bores, so that the contact piece 3 is connected to the center piece 4 of the traverse, namely in an articulated manner, in that the securing bolt forms the pivot axis.
  • Fig. 7 shows a plan view of an entrance arrangement in a representation similar Fig. 4 , but greatly simplified, since the basic design of the entrance arrangement is based on Fig. 4 has already been explained.
  • the center piece 4 of the traverse is shown as a representative of the entire conductor fuse 1, wherein the conductor fuse 1 can correspond to the first or second embodiment described above or can also be designed differently, but is in any case designed according to the invention.
  • the entry arrangement explained is that on the securing frame 14 a further traverse is mounted, which is referred to as fall protection 22 to distinguish it from the traverse of the ladder protection 1, but can basically be designed in the same way as the crossbeam 2.
  • the center piece of the fall protection 22 is shorter than the middle piece of the crossbeam 2, and it does not need to have a transversely running pipe section 7, because the fall arrester 22 manages without a boom 5.
  • the fall arrester 22 is also connected to two support legs 15 of the securing frame 14, the abutment pieces 3 provided for this purpose not being shown for reasons of clarity, just like they are in FIG Fig. 7 as well as in Fig. 4 are also not shown for the traverse 2 of the ladder fuse 1.
  • the attachment pieces 3 of the fall protection 7 can be designed like the attachment pieces 3 of the ladder safety device 1 used on the same entrance arrangement, or they can also be designed differently therefrom. It is essential that the fall protection 22 is attached on the one hand to a support leg 15 to which the ladder safety device 1 is also attached, and that the fall safety device 22 connects at its other end to another support leg 15 to which the ladder safety device 1 is not attached.
  • the fall arrester 22 is shorter than the cross member 2 and is therefore mounted at a greater height on the securing frame 14, corresponding to the smaller distance between two adjacent support legs 15 there.
  • the fall protection 22 serves to prevent a person from falling between two support legs 15 and, if necessary, into the entry opening 12 of the shaft 16. Such a fall protection 22 is not provided above the ladder safety device 1 in order not to hinder entry into the shaft opening 16.
  • the area of the safety frame 14, which is provided with the ladder safety device 1, represents the entry area of the safety frame 14.
  • a safe area outside of the safety frame 14 is created with the help of the fall protection 22, so that in this safe area, for example, those for staying Safety clothing prescribed in the shaft 16 can be put on or taken off.
  • the securing frame 14 is shown as a tripod with three support legs 15, so that there are three fields on the circumference of the securing frame 14, each bounded by two adjacent support legs 15 and each tapering upwards in a triangular manner.
  • a first field forms the mentioned entry area, and a second field is secured by the fall protection 22.
  • a fall protection 22 can also be mounted on the third field. Outside in front of the third field, however, there is no provision for people to be present, for example no changing area, so that for this reason no fall protection is provided there.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
EP20205275.9A 2019-11-08 2020-11-02 Utilisation d'un dispositif de sécurité d'échelle pour entrer dans un puits et dispositif d'entrée Active EP3819457B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019106229 2019-11-08
DE202019106856.6U DE202019106856U1 (de) 2019-11-08 2019-12-10 Leitersicherung zum Schachteinstieg

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EP3819457A1 true EP3819457A1 (fr) 2021-05-12
EP3819457B1 EP3819457B1 (fr) 2023-03-01

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018175525A1 (fr) * 2017-03-22 2018-09-27 Formetco, Inc Accessoire de support d'échelle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892170A (en) * 1989-04-27 1990-01-09 Avanti International Portable ladder assembly
DE29804720U1 (de) * 1997-08-01 1998-06-04 Laug Horst Befestigungselement für Leiterabstützungen
DE29800328U1 (de) * 1997-03-20 1998-08-13 Laug Horst Abstützung für Anlegeleitern
EP0957231A1 (fr) * 1998-05-12 1999-11-17 Neophytos Charalambous Echelle
JP2001003379A (ja) * 1999-06-24 2001-01-09 Hitachi Plant Eng & Constr Co Ltd マンホール安全ガード
US20110158783A1 (en) * 2009-12-24 2011-06-30 Consolidated Edison Company Of New York, Inc. Ladder system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892170A (en) * 1989-04-27 1990-01-09 Avanti International Portable ladder assembly
DE29800328U1 (de) * 1997-03-20 1998-08-13 Laug Horst Abstützung für Anlegeleitern
DE29804720U1 (de) * 1997-08-01 1998-06-04 Laug Horst Befestigungselement für Leiterabstützungen
EP0957231A1 (fr) * 1998-05-12 1999-11-17 Neophytos Charalambous Echelle
JP2001003379A (ja) * 1999-06-24 2001-01-09 Hitachi Plant Eng & Constr Co Ltd マンホール安全ガード
US20110158783A1 (en) * 2009-12-24 2011-06-30 Consolidated Edison Company Of New York, Inc. Ladder system

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DE202019106856U1 (de) 2020-01-20
EP3819457B1 (fr) 2023-03-01

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