EP4352002A1 - Tragwerk einer fahrtreppe oder eines fahrsteigs - Google Patents
Tragwerk einer fahrtreppe oder eines fahrsteigsInfo
- Publication number
- EP4352002A1 EP4352002A1 EP22731217.0A EP22731217A EP4352002A1 EP 4352002 A1 EP4352002 A1 EP 4352002A1 EP 22731217 A EP22731217 A EP 22731217A EP 4352002 A1 EP4352002 A1 EP 4352002A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- devices
- anchor
- stop
- escalator
- eyelet
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0068—Anchors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
Definitions
- the present invention relates to a support structure for an escalator or a moving walk.
- An escalator or moving walkway is a passenger transport system with moving surface segments that are connected to form an endless chain and can be moved in rotation along a guide by a drive in order to transport people.
- the surface segments are arranged one behind the other with almost no gaps, at least on an upper side of the passenger transport system.
- the passenger transport system has two end areas and a middle area. At least in the end areas, the passenger transport system is connected to a building. At the end regions, the surface segments appear and disappear under a combplate and an adjoining ground cover. The end areas are usually aligned horizontally.
- the end areas are arranged on different levels of the structure.
- the central area runs at an angle to the horizontal and connects the levels.
- the surface segments of the escalator form steps.
- the escalator can be called an escalator.
- the end areas of the moving walk can be arranged at the same height or on different levels. Accordingly, the middle part of the walkway can be aligned horizontally or at an angle to the horizontal.
- the central section of the moving walk is generally less steep than the central section of the escalator. In the case of the moving walk, the surface segments do not form any steps.
- Both the escalator and the moving walk have a structure.
- the structure can be designed as a truss.
- the individual components of the passenger transport system such as the guide, the drive, balustrades, handrails and Panels are connected to the structure.
- the structure is usually prefabricated and lifted into the building. When the end sections of the supporting structure are connected to the structure, further components are assembled and the passenger transport system is completed and ready for operation.
- balustrades are often installed only after the structure has been anchored in the structure.
- fitters To assemble the components, fitters have to enter the structure. Since the central area of the passenger transport system often runs freely through the air, the fitters need fall protection. For example, the fitters can secure themselves with large hooks or carabiners directly in the supporting structure or on structures in the building. Alternatively or in addition, temporary maintenance railings can be clamped to the supporting structure with special clamping devices. The fitters can also use the temporary maintenance railings to hang their personal protective equipment.
- the personal protective equipment usually comprises a harness worn on the body and a longer piece of rope attached to it, the end of which can be hung securely, quickly and easily at a suitable point with a snap hook, for example.
- the temporary maintenance railings can be gradually removed as the balustrades are installed.
- Securing the personal protective equipment to structures in the building that are not specifically provided for this purpose or to structures on the supporting structure that are not specifically provided for this purpose can, on the one hand, be complex and, on the other hand, can entail a risk of fall protection that is not appropriate to the situation.
- Installing and then removing temporary maintenance railings may require additional effort. Since the temporary maintenance railings are loose parts during assembly or disassembly, they can be dropped. Parts of the temporary maintenance railing can cause significant damage if dropped.
- clamping devices with different clamping cross-sections or clamping surfaces are required for different types of structures in order to ensure surface contact with the respective structure.
- WO 2019/185573 A1 describes a fastening device for fastening a temporary maintenance railing to a support structure of a passenger transport system.
- EP 1 108 675 B1 describes a working method and a protection system for assembly personnel who work on a passenger conveyor system.
- a supporting structure of an escalator or a moving walk wherein at least two attachment devices for personal protective equipment, which are spaced apart from one another by a maximum of one safety distance, are fixed to the supporting structure in a central region of the supporting structure are arranged.
- Attachment devices also referred to as attachment points, are specially created points where personal protective equipment can be attached safely, quickly and easily.
- the anchor devices usually have a structure on which an eyelet is formed so that the personal protective equipment can be quickly and securely attached to it, but can also be quickly detached again.
- a structure can be a structural component of a passenger transport system in the form of an escalator or a moving walk.
- the structure can be a truss.
- the structure can have upper chords, lower chords, struts, uprights and cross struts as structural components.
- the upper chords and lower chords can be arranged essentially parallel to one another and can run in a main direction of extension of the structure.
- the upper chords and lower chords can be connected to one another by struts aligned diagonally to the upper chords and lower chords and/or uprights aligned transversely to the upper chords and lower chords.
- Upper chords, lower chords, struts, uprights and cross struts can be metal profiles.
- the upper chords, lower chords, struts, uprights and cross struts can be metal F-profiles.
- the upper chords, lower chords, struts, uprights and cross struts can be connected to one another via gusset plates to be connected.
- the upper chords, lower chords, struts, uprights and cross struts can be welded, screwed, pinned and/or riveted.
- a central portion of the structure may be located between two end portions of the structure.
- the center area In the case of an escalator, the center area is aligned at an angle to the horizontal when the support structure is installed.
- the central area In the case of a moving walk, the central area can run horizontally or run diagonally up or down.
- the end areas can generally be oriented horizontally both in the case of an escalator and in the case of a moving walk.
- the support structure can have connection points to a building at the end regions. Likewise, lifting points for lifting the structure can be arranged at the end areas.
- An anchor device for personal protective equipment is specially dimensioned for this purpose in accordance with applicable standards and regulations.
- the stop device can correspond to the European standard EN 365 and/or EN 795, for example.
- the anchor device for personal protective equipment is a specially designed fixed device that is specially designed for the purpose of fall protection using personal protective equipment on the structure.
- the anchor device for personal protective equipment is not an assembly point for components of the escalator or moving walk. It is also not used for attaching lifting gear, such as the lifting points described above.
- the anchorage device is dimensioned in such a way that it can absorb the forces that occur in a standard fall without damage and transfer them to the supporting structure.
- the stop device can be designed for a load of 16 kilonewtons.
- the stop device can also be dimensioned for larger forces.
- the anchor devices presented here remain on the supporting structure even after the components of the people transport system have been installed.
- the anchor device has an eyelet.
- the eyelet can be an opening, an opening or a hole into which at least one connection means of the personal protective equipment can be hung.
- the eyelet can also be dimensioned so large that two connecting means can be attached by different people at the same time.
- the eyelet can be regular or irregular in shape.
- the anchorage device can be highlighted in color by a signal color or a contrasting color to a basic color of the support structure, so that it can be quickly and unequivocally identified by the assembly personnel to be secured. In this way, hanging at an unsuitable point on the supporting structure can be avoided. Thanks to the anchoring devices that are firmly held in place on the supporting structure, a fitter can immediately secure himself against falling when entering the supporting structure without first having to look for a suitable location on the supporting structure or building or first erecting a temporary maintenance railing.
- the personal protective equipment, PPE for short, has, for example, a safety harness (harness) and a height safety device with two separate connection means and at least one energy-absorbing element.
- the connecting means can, for example, be retractable and extendable.
- the energy absorbing element can partially absorb the kinetic energy of a falling body, thus preventing injuries.
- a safety distance between two adjacent anchor devices can be specified by the applicable standards and regulations.
- the backup distance should generally be less than an average arm span of an average human.
- the safety distance can be, for example, in a range from 0.5 m to 3 m, preferably 1 m to 2 m, and can be 1.2 meters, for example. Due to the arrangement of attachment devices spaced apart from one another by a maximum of the safety distance, each fitter can always reach at least two attachment devices at the same time.
- the stop devices can be arranged along the entire length of the supporting structure, in particular along the entire length of the central area of the supporting structure, preferably at uniform intervals.
- the anchor devices may be located on opposite sides of the structure.
- the anchor devices can be distributed evenly to the right and left of the structure.
- the fitter can always hook into a right-hand stop device and a left-hand stop device. If the fitter should then fall, his fall will always be held by the lanyard attached further away. In this way, a fall height can be reduced. This also reduces fall energy or kinetic energy to be absorbed. Furthermore, the risk of falling or hitting the ground is reduced.
- At least one colour-coded anchor device for an attachment device for the personal protective equipment can be arranged on at least one end area of the supporting structure.
- the anchoring device can be spaced at a maximum by the safety distance from an adjacent anchoring device.
- An attachment device requires space due to its design as an eyelet. The available space is limited, particularly in the end areas.
- An anchor device can require significantly less installation space than a stop device.
- the anchor device is dimensioned according to applicable standards and regulations.
- the anchor device is a specially designed fixing point that is only intended for the purpose of fall protection using an anchor device.
- the anchor device is not an assembly device for components of the escalator or moving walk.
- the anchoring device is dimensioned in such a way that it can absorb the forces that occur in a standard fall without damage and transfer them to the supporting structure.
- the anchor device can be oversized.
- the anchor device can stiffen the structure locally.
- a component of the structure can be reinforced in the area of the anchor device.
- the anchor device remains on the supporting structure even after the components of the people transport system have been installed.
- the fitter can carry at least one standardized anchorage device with them. When entering the end area, the fitter can immediately recognize the anchor device and connect the anchor device he/she is carrying with him to the anchor device. The mechanic can then hang his personal protective equipment on the anchorage device, since an eyelet is formed on it, for example. Thus, the anchor device and the anchor device together form an anchor device.
- At least two anchor devices can be arranged on opposite sides of the structure.
- the anchor devices can be distributed evenly to the right and left of the structure. In this way, the fitter can always connect one anchor device to a right-hand anchor device and a left-hand anchor device. If the fitter should then fall, his fall will always held by the lanyard attached further away. In this way, the fall height can be reduced. This also reduces the fall energy to be absorbed. Furthermore, the risk of falling is reduced.
- the stop devices and/or the anchor devices can be arranged in pairs opposite each other.
- the fitter can always reach at least three stop devices and/or anchor devices by means of stop devices and/or anchor devices arranged in pairs at the same height. If two fitters work together on the same people transport system, they can simply climb past each other using anchor devices and/or anchor devices arranged in pairs, without having to unhook their personal protective equipment.
- the stop devices and/or anchor devices can be materially connected to the structure.
- the anchor devices and/or anchor devices can be welded to the structure. Welded anchor devices and/or anchor devices cannot inadvertently remove the anchor devices and/or anchor devices.
- the stop devices and/or anchor devices can also be soldered or glued.
- the anchor devices and/or anchor devices can be arranged on at least one of the upper chords of the structure. Arranged on the upper chord, the attachment devices and/or anchor devices can be clearly visible and easily accessible for the fitter. When the installer is standing in the structure, the top chord can be at about chest height. The lanyards are long enough to also allow work on the lower chord. By arranging the anchor devices and/or anchor devices on the upper chord, a fall is caught earlier and the height of the fall is reduced. This also reduces the fall energy to be absorbed. Furthermore, the risk of falling is reduced.
- the structure can enclose an interior space of the structure with the upper chords and the lower chords.
- the stop devices can be oriented toward an interior space of the structure.
- the stop devices can be aligned in the direction of the interior. This means that the anchorage devices are out of the interior easily accessible. To attach a lanyard, it is not necessary to reach outside of the structure.
- the stop devices can be cut from sheet material.
- the attachment devices can each have a stiffening area for local stiffening of the structure and a strap with an eyelet.
- a plate material can be a thick metal sheet.
- the plate material can be sheet steel, for example.
- the stop devices can, for example, be burned, punched, lasered, water jet cut or milled from the sheet material.
- a stiffening area can at least partially depict a profile of the supporting structure component on which the stop device is arranged.
- the stiffening area may be welded to the structural member.
- the stiffening area can increase a force application area of the supporting structure component for introducing the fall energy, so that the supporting structure is not damaged if a fitter falls.
- the supporting structure can be dimensioned smaller outside of the stop devices, since the stiffening area stiffens the supporting structure component on the force introduction surface.
- the stiffening area can have, for example, two legs arranged in a V-shape, so that the stop device resembles a butterfly with spread wings.
- the legs can increase the force introduction area along a direction of extension of the supporting structure component.
- a tab may protrude from the stiffening area.
- the tab may protrude beyond the structural member.
- the tab can be arranged centrally between the legs.
- the tab can be tongue-shaped. One end of the tab can be rounded.
- the eyelet can be a breakthrough through the flap.
- the eyelet can be circular or oval.
- the eyelet can be triangular with rounded corners.
- the eyelet can be dimensioned large enough to be able to attach two lanyards at the same time.
- the tongue and/or the thighs can bend during a fall and thus absorb the energy of a fall. This
- the anchor devices can be cut and bent.
- the tab may be oriented at an angle to the stiffening area.
- the stop device can be designed in particular as a stamped and bent part.
- the lanyard can be easily hooked into the eyelet thanks to the curved strap.
- the tab can in particular be bent upwards. This allows the tab to bend by a greater angular amount in the event of a fall than if the tab were arranged horizontally. This allows the tongue to absorb more fall energy.
- At least one colour-coded stop device fixedly connected to the support structure and spaced a maximum of the safety distance from an adjacent stop device, can be arranged.
- the end portions of the structure can protrude beyond an edge of the structure. There can already be a risk of falling at a transition from the end area to the middle area. With at least one stop device in the area of the transition, the fitter can already secure himself at the transition.
- the anchoring device can have a thread for a stop device designed as a screw eyelet.
- the anchor device may include a stiffening portion welded to the structural member.
- the stiffening area can have a blind hole with the thread.
- a stop device configured as a screw eyelet can have a forged eyelet and a threaded pin.
- the threaded pin can be temporarily connected to the eyelet so that it cannot rotate. This allows the screw eyelet to be screwed into the anchor device without tools. After screwing in, the non-rotatable connection can be loosened so that the eyelet can rotate independently of the threaded pin. Due to the freely rotatable eyelet, the screw eyelet cannot unscrew itself from the anchor device.
- the anchor device and the screw eye or anchor device connected to it together form an anchor device.
- the anchor device can have a hole for a stop device designed as a ratchet anchor.
- the hole can be a through hole.
- the hole may be located to the side of the structural member in a separate member. Due to the lateral arrangement, a weakening of the supporting structure component through the hole can be avoided.
- a pawl anchor may include a movable pawl, a flexible shaft, and an eyelet.
- the pawl may be located at one end of the shaft.
- the eyelet can be at an opposite end of the shank be arranged.
- the pawl can be inserted into the hole in an unlocked position. Behind the hole, the pawl can be moved to a locked position.
- a spring on the shaft can hold the pawl in the locked position.
- the pawl In the locked position, the pawl may be positioned across the hole and abut a rear of the anchor device. Thus, the pawl anchor can no longer be pulled out of the anchor device. To remove the pawl anchor, the spring can be compressed and the pawl returned to the unlocked position. Then the pawl anchor can be removed from the anchor device again.
- the anchor device can be arranged on an underside of a top chord of the structure. By arranging it on the underside, a lateral load on the anchorage device can be prevented in the event of a fall.
- FIG. 1 shows an illustration of a supporting structure according to an embodiment
- FIG. 2 shows an illustration of a stop device on a supporting structure according to an embodiment
- FIG. 3 shows an illustration of anchor devices on a supporting structure according to an exemplary embodiment.
- FIG. 1 shows an illustration of a supporting framework 100 according to an exemplary embodiment.
- the supporting structure 100 is a framework made up of upper chords 102, lower chords 104, struts 106 and uprights 108 and cross struts 110.
- the upper chords 102 and lower chords 104 run essentially parallel to one another.
- the lower chords 104 are connected to one another by the cross braces 110 .
- the transverse struts 110 are arranged perpendicular to the lower chords 104 .
- the struts 106 are arranged diagonally to the upper chords 102 and lower chords 104 and each connect one of the upper chords 102 to one of the lower chords 104.
- the uprights 108 are arranged perpendicular to the upper chords 102 and lower chords 104 and each connect one of the upper chords 102 to one of the lower chords 104.
- the uprights 108 are connected by further cross braces 110.
- the structure 100 has two end regions 112 and a middle region 114 .
- half of a support structure 100 of an escalator 116 is shown.
- Its central area 114 is oriented obliquely to the end areas 112 in order to overcome a height difference between the two levels connected by the escalator 116 .
- the end portions 112 are aligned horizontally.
- the structure 100 has a kink in each case.
- the central area 114 can be attached to the central area 114 with attachment devices 118 for personal protective equipment 130 (this is shown only schematically in FIG.
- the stop devices 118 are dimensioned and designed in such a way that they meet the relevant standards and regulations with regard to their strength.
- the stop devices 118 are clearly color-coded.
- the attachment devices 118 each have an eyelet 120 for at least one connection means 123 of the personal protective equipment 130 .
- the stop devices 118 remain on the supporting structure 100 even after the escalator 116 has been completed.
- the stop devices 118 are arranged at a maximum safety distance 122 from one another.
- the backup distance 122 is less than an average arm span of an average human.
- the average arm span may be specified in relevant standards and regulations. Due to the distance limitation at less than the safety distance 122, a fitter can always reach at least two of the attachment devices 118 and thus secure himself.
- the stop devices 118 are preferably welded to the supporting structure 100 . Due to the materially bonded connection, fall forces occurring in the event of a fall can be safely introduced into the supporting structure 100 . Welding also prevents the stop devices 118 from being accidentally unscrewed.
- the stop devices 118 are arranged on both sides of the structure 100 .
- the stop devices 118 are arranged on the right and left of the structure 100 . In this way, the fitter can secure himself on both sides at the same time. A fall height can be reduced in this way, since the lanyard that is tightened first always slows down the fall.
- the stop devices 118 are arranged in pairs opposite one another. In this way, the fitter can always reach at least three of the stop devices 118 at the same time. If two fitters are working on the escalator 116 at the same time, they can easily pass each other, since one of the fitters can be secured on each side when passing. When the fitters have passed each other, they can secure themselves on either side again.
- the attachment devices 118 are arranged on the upper chords 102 .
- the attachment devices 118 on the upper chords 102 are easily accessible for the fitter because they are in the region of chest height of the standing fitter. The height of the fall can be reduced by securing the upper belt 102.
- the upper straps 102 are sufficiently dimensioned to absorb the resulting fall energy.
- the stop devices 118 are cut from sheet material.
- the stop devices 118 each have a stiffening area 124 and a tab 126 with the eyelet 120 .
- the stiffening area 124 is firmly connected to the supporting structure 100 and locally stiffens the supporting structure 100 in order to dissipate the fall energy into the supporting structure 100 without causing damage.
- the tab 126 protrudes from the stiffening area 124 and the structure 100 . the Tab 126 can plastically deform during a fall to absorb some of the fall energy.
- the stiffening area 124 has two legs 125 arranged.
- the tab 126 connects both legs 125 to each other.
- the legs extend away from the lug 126 in a V-shape and thus at an angle to a direction of extension of the supporting structure 100.
- the stop devices 118 are thus configured approximately in the shape of a butterfly.
- the legs 125 are widened at their ends. At the widening, the legs 125 are approximately as wide as the upper chord 102. Due to the oblique orientation, the legs 125 are aligned with an expected direction of force in the event of a fall. The widenings and optionally also the legs 125 are in particular welded onto a surface of the upper chord 102 .
- the tabs 126 protrude into an interior space 128 of the supporting structure 100 .
- the eyelets 120 can be easily reached by the fitter and the connection means 132 of the personal protective equipment 130 can align themselves in the eyelet 120 by gravity. In the event of a fall, a transverse load on the connecting means 132 can thus be avoided.
- the tabs 126 with the eyelets 120 are bent upwards by approximately 45° out of the planes of the stiffening areas 124 .
- the connecting means 132 can thus be aligned in several spatial directions with respect to the stop device 118 without tilting.
- the bent-up tab 126 can be bent down in the event of a fall in order to dissipate the energy of a fall.
- two further stop devices 118 are arranged at the transition from the end area 112 to the middle area 114 .
- the stop devices are arranged in the end area 112 and are at most away from the adjacent stop devices 118 of the central area 114 by the safety distance 122 .
- FIG. 2 shows an illustration of a stop device 118 on a supporting structure 100 according to an exemplary embodiment.
- the stop device 118 corresponds to im Essentially the stop devices shown in Fig. 1.
- the escalator 116 is already partially assembled.
- a balustrade 200 is attached to the top chord 102 using balustrade clamps 202 .
- the Balustrade 200 takes over the lateral fall protection here.
- the balustrade clamp 202 is screwed to the upper chord 102 and securely clamps the balustrade 200 between its clamping jaws.
- the anchor device 118 is arranged between a lower edge of the balustrade 200 and the upper chord 102 .
- a movable handrail 204 of the escalator 116 runs below the stop device 118 within the framework 100 .
- the handrail 204 is guided by handrail guides 206 .
- the handrail guides 206 are mounted below the balustrade clamps 202 .
- the handrail guides 206 have support rollers and guide rollers for guiding the handrail 204 laterally. This view clearly shows that the stop device 118 can easily remain in the escalator 116 and does not have to be removed after the balustrades 200 have been installed, as is the case, for example, with the temporary maintenance areas (not shown) mentioned at the outset.
- FIG. 3 shows an illustration of anchor devices 300 on a supporting structure 100 according to an exemplary embodiment.
- the structure 100 essentially corresponds to the structure in FIG. 1.
- An end area 112 of the structure 100 is shown here.
- the anchor devices 300 are dimensioned and designed in such a way that they meet the safety requirements of relevant standards and regulations.
- the anchor devices 300 are clearly color-coded. If necessary, a mobile attachment device 302 for hanging or attaching the personal protective equipment 130 (see FIG. 1) can be temporarily attached to the anchoring devices 300 .
- the anchor devices 300 are provided only for the anchor devices 302 and are not used to assemble components of the escalator 116 .
- the anchor devices 300 are arranged on an underside of the upper chord 102 .
- the anchor device 302 can be anchored in the anchoring device 300 from below or at an angle below and removed from the anchoring device 300 downwards again after use. through the assembly from below, lateral shearing loads on the anchorage devices 302 can be avoided in the event of a fall.
- the anchor device 302 is a ratchet anchor 304.
- the ratchet anchor 304 can be attached to the anchor device 400 without tools.
- the pawl anchor 304 has a pawl 306 that is inserted into a hole 308 of the anchor device 300 in a longitudinal direction of the pawl anchor 304 and traverses behind the hole 308 and abuts a rear side of the anchor device 300 .
- a shank 310 of the pawl anchor 304 protrudes on a front side of the anchor device 300 and ends in an eyelet 120. In the eyelet 120, the connecting means 132 of the personal protective equipment 130 can be hung.
- the shank 310 is pushed further into the hole 308, the pawl 306 thus relieved is realigned longitudinally by an integrated mechanism and pulled out of the hole 308 together with the shank 310.
- the anchor device 302 is a screw eyelet 312.
- the screw eyelet 312 has a threaded pin 316 and an eyelet 120 for the connecting means 132 of the personal protective equipment 130.
- the threaded pin 316 is screwed into a thread 314 of the anchoring device 300 .
- the thread 314 can be an M16 thread, for example.
- the threaded pin 316 is connected to the eyelet 120 in a torque-proof manner.
- the eyelet 120 can be used as a handle for screwing in and unscrewing without tools.
- a locking mechanism (not shown) used in this case can be operated without tools and visually indicates its locking status via signal-colored locking elements.
- the thread 314 is designed as a blind hole and is arranged in a stiffening area 124 of the anchoring device 300 in order not to cause any notch effects in the structure 100 .
- the stiffening area 124 is in particular with welded to the structure 100 and has a greater thickness than the blind hole is deep.
- balustrade 200 is installed on site at the customer's site. There is a risk of falling here, since a complete safety chain, e.g. with escalators 116 that are installed crossed one above the other in an atrium, is often difficult or impossible to implement, since there are no attachment devices for self-safety on the building. Conventionally, no stop devices are provided on the escalator 116 either.
- the attachment devices 118 presented here for securing people by means of personal protective equipment (PPE) 130 can be arranged at defined regular or irregular distances 122 on the truss top chord 102 .
- the distance 122 is selected in FIG. 1 in such a way that it is possible to be able to attach the personal protective equipment 130 to two consecutive or opposite attachment devices 118 at the same time.
- the stop devices 118 can be arranged on one or both sides of the escalator 116 .
- the stop devices 118 are preferably welded to the upper chord 102 of the framework 100 or to other escalator structural elements, for example soldered or glued, as long as these elements withstand the test forces required by the standards.
- the attachment device 118 is constructed in such a way that the top chord 102 of the truss structure is reinforced or stiffened and thus local overloading of the truss top chord 102 when the test force is applied is prevented.
- the embodiment shown makes it possible for several people to be able to secure themselves simultaneously on the escalator 116 with their personal protective equipment 130 without any additional effort.
- the stop devices 118 are highlighted by colored or other markings in order to rule out accidental securing to components that are not intended for this purpose as far as possible.
- stop devices 118 are preassembled at the factory and can therefore be used immediately for fall protection without the need for complex assembly work before the escalator 116 is brought in.
- the anchor devices 118 can be used immediately for fall protection if no anchor devices are provided on the building side.
- the stop devices 118 can be used both for constructing balustrades and for all subsequent repairs or modernization of the systems, since the stop devices 118 remain installed on the escalator 116.
- the stop devices 118 themselves can be produced, for example, by fiber cutting, flame cutting or water jet cutting. Likewise, the stop devices 118 can be manufactured as a gravity cast component or with another manufacturing method.
- the illustrated attachment devices 118 are designed for the connection by means of welding processes on the upper chord 102 in such a way that they can be used with all product types.
- the size and shape of the opening for hanging the personal protective equipment 130 can vary to attach one or more snap or screw carabiners.
- the permanently installable stop devices 118 described in the present document enable easy handling and can be used with all types of escalators, are permanently installed on their support structure 100, can also be used for repairs or modernizations and are inexpensive to produce. By using the permanently installable stop devices 118 presented here, an improvement in work safety and an increase in work efficiency can be achieved.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21178925 | 2021-06-11 | ||
PCT/EP2022/064867 WO2022258449A1 (de) | 2021-06-11 | 2022-06-01 | Tragwerk einer fahrtreppe oder eines fahrsteigs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4352002A1 true EP4352002A1 (de) | 2024-04-17 |
EP4352002B1 EP4352002B1 (de) | 2025-03-12 |
Family
ID=76392227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22731217.0A Active EP4352002B1 (de) | 2021-06-11 | 2022-06-01 | Tragwerk einer fahrtreppe oder eines fahrsteigs |
Country Status (8)
Country | Link |
---|---|
US (1) | US20240270539A1 (de) |
EP (1) | EP4352002B1 (de) |
KR (1) | KR20240021785A (de) |
CN (1) | CN117460685A (de) |
AU (1) | AU2022290814A1 (de) |
BR (1) | BR112023025424A2 (de) |
TW (1) | TW202300431A (de) |
WO (1) | WO2022258449A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3454766B2 (ja) | 1999-12-16 | 2003-10-06 | 株式会社日立製作所 | 乗客コンベアの工事方法及び乗客コンベアの養生装置 |
JP5271193B2 (ja) * | 2009-08-06 | 2013-08-21 | 三菱電機ビルテクノサービス株式会社 | 乗客コンベアの作業用安全具の支持金具 |
JP2013245098A (ja) * | 2012-05-29 | 2013-12-09 | Hitachi Building Systems Co Ltd | 乗客コンベアの安全装置及び設置方法 |
WO2019185573A1 (de) * | 2018-03-28 | 2019-10-03 | Inventio Ag | Befestigungsvorrichtung zum befestigen eines temporären wartungsgeländers an einem tragwerk einer personentransportanlage |
US11220829B2 (en) * | 2018-09-26 | 2022-01-11 | Ronald Fontes | System for the safety of workers installing escalators |
WO2020261469A1 (ja) * | 2019-06-27 | 2020-12-30 | 三菱電機ビルテクノサービス株式会社 | エスカレーター用工具入れ |
US11970365B2 (en) * | 2020-03-04 | 2024-04-30 | Inventio Ag | Protective device during assembly work on an escalator or a moving walkway |
-
2022
- 2022-05-27 TW TW111119858A patent/TW202300431A/zh unknown
- 2022-06-01 EP EP22731217.0A patent/EP4352002B1/de active Active
- 2022-06-01 KR KR1020237042233A patent/KR20240021785A/ko active Pending
- 2022-06-01 WO PCT/EP2022/064867 patent/WO2022258449A1/de active Application Filing
- 2022-06-01 AU AU2022290814A patent/AU2022290814A1/en active Pending
- 2022-06-01 US US18/568,473 patent/US20240270539A1/en active Pending
- 2022-06-01 CN CN202280041361.3A patent/CN117460685A/zh active Pending
- 2022-06-01 BR BR112023025424A patent/BR112023025424A2/pt unknown
Also Published As
Publication number | Publication date |
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BR112023025424A2 (pt) | 2024-02-20 |
TW202300431A (zh) | 2023-01-01 |
CN117460685A (zh) | 2024-01-26 |
KR20240021785A (ko) | 2024-02-19 |
US20240270539A1 (en) | 2024-08-15 |
AU2022290814A1 (en) | 2023-12-21 |
WO2022258449A1 (de) | 2022-12-15 |
EP4352002B1 (de) | 2025-03-12 |
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