EP3747802B1 - Sicherheitssystem für eine unterirdische müllsammelvorrichtung - Google Patents

Sicherheitssystem für eine unterirdische müllsammelvorrichtung Download PDF

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Publication number
EP3747802B1
EP3747802B1 EP19178838.9A EP19178838A EP3747802B1 EP 3747802 B1 EP3747802 B1 EP 3747802B1 EP 19178838 A EP19178838 A EP 19178838A EP 3747802 B1 EP3747802 B1 EP 3747802B1
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EP
European Patent Office
Prior art keywords
safety
platform
pit
receiving
spring
Prior art date
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Active
Application number
EP19178838.9A
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English (en)
French (fr)
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EP3747802C0 (de
EP3747802A8 (de
EP3747802A1 (de
Inventor
Paul VERHESEN
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ESE World BV
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ESE World BV
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Publication date
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Priority to ES19178838T priority Critical patent/ES2956807T3/es
Priority to EP19178838.9A priority patent/EP3747802B1/de
Publication of EP3747802A1 publication Critical patent/EP3747802A1/de
Publication of EP3747802A8 publication Critical patent/EP3747802A8/de
Application granted granted Critical
Publication of EP3747802C0 publication Critical patent/EP3747802C0/de
Publication of EP3747802B1 publication Critical patent/EP3747802B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B65F1/1426—Housings, cabinets or enclosures for refuse receptacles
    • B65F1/1447—Housings, cabinets or enclosures for refuse receptacles located underground

Definitions

  • the present invention relates to a safety system for an underground refuse collecting apparatus according to the preamble of independent claim 1. Furthermore, according to the preamble of independent claim 10, the invention is directed to such an underground refuse collecting apparatus itself.
  • Underground refuse collecting apparatus per se are well known in the prior art. They usually comprise a receiving pit which serves as an external housing which is placed into the ground. In its mounted state, the receiving pit is located at least partially under the ground level.
  • the receiving pit serves on the one hand to keep ground water out. On the other hand, it also serves as a protection to keep soil out and maintain the contour of the apparatus as a whole.
  • a refuse container is provided inside the receiving pit.
  • a removing device is provided by means of which the refuse container can be removed out of the receiving pit.
  • a safety system is activated, which may comprise a safety platform, by means of which the pit opening and therefore the empty receiving pit can get closed in order to prevent any accidents such as people falling into the empty receiving pit.
  • a safety system which may cover the pit opening, comprises one or more hinged doors. These doors are closed by a spring-loaded lock, providing sufficient force to close the door. The doors are mechanically locked for withstanding a required point-load.
  • the disadvantage of such a solution is that when the lock is broken, for example when the mobile refuse container is placed back with too much force and not being aligned with the locking mechanism, the lock will break and the doors only remain closed by the relatively weak spring-load. This load is insufficient to withstand the 2500N of point pressure and a person walking over the safety platform could apply sufficient force to make the doors function as a trap, closing the doors behind the person falling into the pit.
  • NL1028372C2 discloses a safety floor for covering a receiving pit for a waste recycling container, which is held in a raised position by means of a counterweight.
  • This solution describes a safety floor that is lifted with 250kg of counterweight.
  • the disadvantage of such a system is that the 250kg metal counter weight creates an important increase of costs due to the raw metal weight price.
  • the carrying capacity of the safety floor might be too small in its corners which increases the danger of injuries.
  • a safety platform having a spring-loaded locking mechanism is disclosed in EP2006221A1 .
  • this locking mechanism is provided as a latch finger.
  • Such mechanical locking devices have the drawback, that, if they are not correctly unlocked, when the refuse container is placed back on the safety platform in order to get removed into the receiving pit, the latch fingers can get damaged, bended out of shape for example.
  • Other locking mechanisms for safety platforms are known from FR2984859 and FR2736901 .
  • Document DE4105901A1 discloses a safety platform which is moved by means of straps.
  • the movement of the straps is performed by means of a motor or by means of muscular power, which is structurally complex and therefore cost intensive in the first case, and at least uncomfortable in the second case.
  • a safety platform according to the preamble of claim 1 is disclosed by FR2846312 .
  • this object is solved according to a first aspect of the invention by the safety system with the features according to independent claim 1, and, according to a second aspect of the present invention, by the underground refuse collecting apparatus with the features according to independent claim 10.
  • a safety platform for example, for covering the receiving pit of an underground refuse collecting apparatus, brought to raised position by means of at least one elastic body and being locked in position.
  • a safety platform in brought into a raised position in order to cover the pit opening of the receiving pit of the underground refuse collecting apparatus, when the underground refuse container is removed from the receiving pit.
  • the lifting procedure of the safety platform is performed by means of a system of elastic strands, raising the safety platform to a level where it protects pedestrians from falling into the receiving pit.
  • a spring-loaded locking mechanism locks the safety platform in position until the mobile refuse container is lowered back into the receiving pit.
  • a multiple safety system is provided to cover the receiving pit, in particular the pit opening thereof. It consists of an elastic spring-loaded safety platform in combination with a static load resisting locking mechanism without the risk that the lock is overloaded while misplacing the mobile refuse container.
  • the safety system fulfils the requirements of EN13071, which requires a load capacity of 150kg for the safety platform.
  • the equipment is composed of a device whereby a weight of 150 kg shall be applied vertically, on a surface of maximum ⁇ 300 mm" diameter.
  • the test method is as follows: the weight of 150 kg shall be applied on a minimum of 8 points of the safety platform. When selecting the locations, the design of the safety platform shall be considered and the test shall be focused on the areas most vulnerable to movement or breakage. The minimum duration of each test shall be 1 minute
  • the aforementioned goals are achieved by an interaction of different components, in particular by the interaction of a special safety platform in combination with a special lifting device for the safety platform and in combination with a special locking device for holding the safety platform in a defined position.
  • the present invention is directed to the technical field of underground refuse collecting apparatus.
  • such an underground refuse collecting apparatus comprises a receiving pit, which serves as an exterior housing and which is placed inside the ground, such that the receiving pit is located at least partially below the ground level.
  • the receiving pit is square or rectangular in shape, which means that it has a square or rectangular cross-section.
  • the receiving pit which may be made of concrete, metal, steel for example, a plastic material, or the like, preferably comprises a pit side wall, optionally a pit ground or pit bottom at the lower end of the pit side wall and a pit opening at the upper end of the pit side wall.
  • the aforementioned components preferably delimit a receiving space, said receiving space being adapted for receiving a, in particular mobile, refuse container, said refuse container serving as a refuse collecting container.
  • the volume of the refuse container can range from 1m 3 to 5m 3 .
  • the present invention is not limited to specific load capacities for the refuse container.
  • the refuse container is adapted for temporarily storing waste, valuable substances or the like.
  • the receiving pit serves to keep ground water out of the underground refuse collecting apparatus.
  • it also serves as a protection to keep soil out and maintain the contour of the arrangement as a whole.
  • the refuse container is movably located inside the receiving pit. That means that the refuse container can get removed, via said pit opening, out of the receiving pit. In the same way, the refuse container can get inserted, once it has been emptied, maintained or the like, via said pit opening into the receiving pit as well.
  • the refuse container comprises a lid element that covers the refuse container at the top, the lid element having a receiving opening for refuse.
  • the refuse container which is located inside the receiving pit and hence at least partially below ground level, when the underground refuse collecting apparatus is in use in the intended manner, serves to actually receive the refuse.
  • the underground refuse collecting apparatus comprises a device for removing the refuse container out of the receiving pit and for placing the refuse container into of the receiving pit.
  • the underground refuse collecting apparatus comprises a chute device being assigned to the refuse container and being adapted for receiving refuse to be inserted into the refuse container.
  • a safety system is activated, said safety system comprising a safety platform, by means of which the empty receiving pit, in particular the open pit opening, is or remains closed, in order to prevent accidents, in particular to prevent people from falling into the receiving pit.
  • the safety platform is square or rectangular in shape, which means that it has a square or rectangular cross-section.
  • the underground refuse collecting apparatus comprises a receiving pit, said receiving pit comprising a pit side wall and a pit opening for receiving a refuse container, and optionally a pit ground or bottom. These components delimit a receiving space or an uptake chamber for receiving and storing the refuse container.
  • the apparatus according to this preferred embodiment further comprises a refuse container being movably arranged inside the receiving pit, and a safety system for closing the pit opening, once the refuse container has been removed from the receiving pit.
  • the safety system is preferably adapted for supporting the refuse container whilst it is placed inside the receiving pit.
  • the present invention is directed to the safety system comprising the features of independent claim 1.
  • the safety system is used in connection with an underground refuse collecting apparatus, in particular for an underground refuse collecting apparatus as described further above.
  • the safety system comprises a safety platform.
  • This safety platform which will be explained in more detail further below, serves as a safety floor, if the refuse container has been removed from the receiving pit. In this situation the safety platform covers the pit opening of the receiving pit.
  • the safety platform is used for holding and supporting the refuse container, if the refuse container is or gets placed inside the receiving pit. That means, that the refuse container is set down on the safety platform when it gets stored and located inside the receiving pit.
  • the safety system comprises a lifting device for moving the safety platform between different positions.
  • the safety platform of the safety system is movably mounted inside the receiving pit between a first ground position, in which the refuse container is stored inside the receiving pit, and a second safety position in which the refuse container is removed from the receiving pit and in which the pit opening is closed by the safety platform.
  • the safety platform In the first ground position the safety platform is preferably located at the lower end of the receiving pit, on the ground or bottom of the receiving pit or in close vicinity to the ground or bottom for example.
  • the safety platform can be located in a distance to the ground or bottom in this first ground position, which allows the arrangement of further components of the underground refuse collecting apparatus below the safety platform.
  • the safety platform In the second safety position, the safety platform is preferably located at the upper end of the receiving pit in particular such that it is aligned with the upper edge of the receiving pit.
  • the lifting device comprises a number of elastic strands.
  • a strand is a member which extends linearly in a certain length.
  • a strand is an elongated member having an extension in a length direction which is a multiple of its extension in width direction.
  • the present invention is not limited to specific types of strands.
  • a rope, a cord, a string, a band or a cable can be a strand according to the present invention.
  • the strand is provided as a cable or as a band.
  • the strand is provided as an elastic strand. That means that the strand has elastic properties which will be explained in more detail further below.
  • the lifting device comprises a number of such elastic strands, which means that the lifting device comprises more than one such elastic strands.
  • the present invention is not limited to a specific number of elastic strands.
  • the lifting device comprises four elastic strands. Nevertheless, the number of elastic strands used as a lifting device for the safety platform is dependent on the strand material and/or on the width of the elastic strands and/or on the load to get lifted by means of said lifting device.
  • Each of the elastic strands is connected to the safety platform, via a first end thereof for example.
  • the safety system further comprises at least one spring-loaded locking device.
  • This spring-loaded locking device which will be explained in more detail further below, is provided in such a way that it is capable of for holding the safety platform in a defined position, said spring-locking device being mounted to the safety platform.
  • the present invention is not limited to specific types of safety platforms. It is the general function of the safety platform to provide some kind of a safety floor, which covers the pit opening of the receiving pit, when the refuse container has been removed from the receiving pit.
  • the safety platform can be provided as a single-component member having the platform element only, said platform element being preferably made of a rigid material.
  • the safety platform is provided as a multicomponent structure consisting of more than one component.
  • the safety platform comprises a platform frame and a platform surface, said platform surface being surrounded by said platform frame.
  • the platform surface can be inserted into and inside the platform frame.
  • the platform surface is mounted on the platform frame.
  • the safety platform in particular the platform surface and/or the platform frame, is/are preferably made from a lightweight material.
  • the platform surface can be a net and/or a mesh.
  • the safety platform, in particular the platform surface and/or the platform frame is(are made out of a low weight material to reduce the number of elastic strands needed to lift the safety platform.
  • It can be made out of a mesh of fabric straps/bands, and/or a plastic sheet, mesh/ bands, and/or of light weight sheet material such as glass fibre/ carbon, and/or of elastic fabrics/nets, which are used for trampolines for example, and/or of metal wire mesh, nets, and/or of any other lightweight material.
  • the platform surface is carried by the platform frame, which preferably is a rigid frame, that also accommodates the spring-loaded locking device.
  • the elastic strands are connected to the safety platform at the edges thereof.
  • the safety platform is rectangular or square in shape
  • the elastic strands can be connected to the safety platform in the four corners thereof.
  • the lifting device preferably comprises four elastic strands.
  • At least one of the elastic strands is/are guided over a guidance device, in particular over a guidance reel.
  • the guidance device is connected to or arranged at the receiving pit.
  • each of the elastic strands comprises two ends. With one of its ends, which is the first end, the elastic strands are connected to the safety platform.
  • the guidance device is preferably arranged at the receiving pit, in particular at the upper edge thereof, said upper edge preferably bordering the pit opening.
  • one guiding device is assigned respectively. The elastic strands are guided over the guiding device and get redirected in the direction of the pit ground or bottom. With the other end, which is the second end, the elastic strands are connected to the receiving pit, to the ground or bottom thereof for example.
  • the elastic strands are connected with their second ends to the guidance device, in particular to a guidance reel.
  • the elastic strands are coiled up on the guidance device when the safety platform is lifted.
  • the elastic strands are moving over one or more guidance devices, guidance wheels for example, to enable the use of longer strands for increased stretch length to cover the movement of the height of the pit, while maintaining a proper elastic force onto the safety platform.
  • guidance devises are to reduce friction and wear of the elastic strands.
  • a smooth surface rod can be applied as a guidance device, which is preferably made of or covered by a smooth metal or plastic material, in order to guide the elastic strands like the function of the wheel described above.
  • the present invention is not limited to a specific material, specific configurations and geometries of the elastic strands.
  • the elastic strands have the property of generating elastic restoring forces, in particular of generating progressive restoring forces. If the elastic strands are put under load, in particular if the elastic strands get stretched or elongated into their longitudinal direction, elastic restoring forces are created inside the elastic strands due to their elastic properties.
  • the elasticity of the elastic strands is their property to change their shape, for example to increase their length, due to an applied force, and to return to its original shape once the applied force falls away.
  • the elastic strands show a progressive elastic behaviour. Nevertheless, elastic strands having a linear elastic behaviour are suitable as well.
  • the elastic strands of the safety system are provided such that they exert a maximum elastic restoring force, if the safety platform is in the first ground position. In this situation the elastic strands have the maximum elongation.
  • the elastic strands of the safety system are preferably provided such that they exert a reduced, in particular a minimum, elastic restoring force, if the safety platform is in the second safety position.
  • the elastic strands are made from an elastic material or are at least partially made from an elastic material.
  • the present invention is not limited to specific types of material.
  • the elastic material is selected from the group consisting of rubber, caoutchouc, latex, preferably from 100% natural materials or from synthetic materials.
  • the elastic strands can be made out of rubber bands or of multi core elastic ropes or of any other elastic material.
  • multiple elastic strands are used, such as four pieces to place two of them on each side of the safety platform for balancing.
  • the fixation of the elastic strands to the safety platform should be close to each corner to resist the forces applied to the safety platform best.
  • more elastic strands on both or on all of the sides can be applied.
  • the elastic cables are mounted in a way that they are easy to replace. It is preferred to use UV and weather resistant elastic material to prevent a reduced lifting force over lifetime. Additionally, all of the elastic strands could be periodically replaced to guarantee the proper functioning over lifetime.
  • non-elastic strands and elastic strands can be used where the elastic part is only covering a certain percentage of the length of the strands.
  • the non-elastic part can also be made from a steel strand or metal chains.
  • the at least one spring-loaded locking device laterally protrudes from the safety platform, in particular from the platform frame.
  • the spring-loaded locking device extends sideways from the sides of the safety platform, from the platform frame for example.
  • the safety platform and the locking device are preferably aligned with regard to each other.
  • the locking device can be mounted below the safety platform, or on the safety platform as well, if appropriate.
  • the present invention is not limited to a specific number of locking devices.
  • more than one locking device is provided.
  • the safety system comprises four spring-loaded locking devices, two locking devices each being provided at opposite sides of the safety platform.
  • at least one locking device is provided at each side of the safety platform. The number and arrangement of the locking devices at and over the edge(s) of the safety platform generally depends on the weight to be dealt with.
  • the spring-loaded locking device comprises a spring-loaded wheel.
  • the wheel moves over the inner surface of the receiving pit, when the safety platform is moved between different positions inside the receiving pit, for example between the first ground position and the second safety position. Therefore, the locking device may function as a guiding element for guiding the safety platform inside the receiving pit as well.
  • the spring-loaded wheel is mounted to a wheel base.
  • the wheel base has a shape that will keep the wheel in vertical position, such as square, rectangular, H profile, I-profile or any other shape that prevents the wheel from rotating around the axis of the wheel base.
  • the wheel base is movably mounted in a receiving recess, said receiving recess being assigned the service platform.
  • a spring member is mounted inside the receiving recess, said spring member interacting with the wheel base. If the wheel and the wheel base are moved inside the receiving recess due to a force applied to the wheel, the spring member inside the receiving recess is compressed, thus creating a restoring force.
  • the invention is directed to an underground refuse collecting apparatus comprising the features of independent claim 10.
  • This apparatus comprises a receiving pit, said receiving pit comprising a pit side wall and a pit opening for receiving a refuse container.
  • the apparatus further comprises a refuse container being movably arranged inside the receiving pit, and a safety system for closing the pit opening, once the refuse container has been removed from the receiving pit.
  • the safety system is provided according to the first aspect of the invention. Therefore, in order to describe and explain the configuration of the underground refuse collecting apparatus as well as its function, full reference is also made to the entire disclosure of the first aspect and to the general description of the apparatus further above.
  • the service platform of the safety system is movably mounted inside the receiving pit between a first ground position, in which the refuse container is stored, preferably completely stored, inside the receiving pit, and a second safety position in which the refuse container is removed from the receiving pit and in which the pit opening is closed by the safety platform.
  • the elastic strands of the safety system are provided such that they exert a maximum elastic restoring force, if the safety platform is in the first ground position.
  • a lower elastic restoring force in particular a minimum elastic restoring force, may be exerted by the elastic strands, if the safety platform is in the second safety position.
  • the pit side wall comprises an interaction device.
  • This interaction device is provided in such a way that it is capable of interacting with the spring-loaded locking device, in particular a spring-loaded wheel thereof. Furthermore, the interaction device is provided in such a way that it is capable of fixing the safety platform in the second safety position.
  • the present invention is not limited to specific types and configurations of such interaction devices. Next a number of preferred embodiments are described in more detail.
  • the interaction device comprises a receiving profile element being mounted to the pit side wall, in particular to the inner surface of said pit side wall, which is directed into the receiving space of the receiving pit.
  • This profile element can be a metal profile mounted on the receiving pit containing a negative cavity at the position where the safety platform should hold position.
  • the interaction device is provided as recess being formed inside the pit side wall, in particular on the inner surface of the pit side wall.
  • the recess is provided as a cavity having a concave shape.
  • the depth of the recess is slightly deeper than the center of the wheel of the spring-loaded locking device. This will prevent the safety platform to move downward when a force or human weight is applied to any point on the surface of the safety platform.
  • the recess is embedded in the side wall of the receiving pit.
  • the interaction device is provided a projection protruding from the pit side wall, in particular on the inner surface of the pit side wall.
  • the projection is a positive geometry coming out of the surface of the pit walls.
  • the apparatus comprises a static concrete, steel or plastic receiving pit containing a mobile underground refuse container. Volumes can range from 1m 3 up to 5m 3 of volume or even more.
  • the mobile refuse container is lifted out of the receiving pit, by a crane for example, that is holding the bottom doors of the refuse container closed while lifting.
  • a safety platform a safety floor for example, which is positioned below the mobile refuse container is moving with the mobile refuse container upwards.
  • the safety platform is connected to multiple elastic strands, which are stretched to provide an elastic tensile force in the starting position. When the mobile refuse container is lifted upwards, this elastic tensile force will pull the safety platform upwards.
  • the safety platform While the safety platform is moving upwards, it is guided in its movement by spring-load wheels of a spring-loaded locking device, that follow the contours of the sides of the receiving pit.
  • the spring load wheels When the safety platform is in position, the spring load wheels reach a level where the pit contours contain a recess in the sides of the receiving pit. The wheels will be extended into the cavity by the pushing of the spring, locking the safety platform in a horizontal position. The depth of the recess, which is slightly deeper than the center of the wheel, will prevent the safety platform to move downward when a force or human weight below 2500N of force is applied to any point on the surface of the safety platform. Together with the force from the elastic strands, the safety platform will stay into position. When for any reason the locking mechanism does not function properly, the load applied to the safety platform by the elastic strands will still be strong enough to lift a person and will prevent the person to fall into the receiving pit.
  • the safety platform is unlocked when the mobile refuse container, having a mass of 250 kg or more for example, is placed back. This weight will force the spring-loaded wheels to move back in the cavity, pushing the wheel base against the direction of the spring load.
  • the wheel When the wheel is pushed inside its receiving recess, the wheel is able to exit the pit recess and the safety platform can again move downwards, following the movement of the mobile refuse container.
  • the elastic strands are stretched placing a load onto the strands for lifting the safety platform upwards in the next cycle of removal of the mobile refuse container.
  • FIGS 1 to 4 show a first embodiment of an underground refuse collecting apparatus 10.
  • the apparatus 10 comprises a receiving pit 11, which is placed in the ground 100, such that the receiving pit 11 is located below ground level 101.
  • the receiving pit 11, which is made of concrete, comprises a pit side wall 12, a pit ground 13 and a pit opening 14.
  • the aforementioned components border a receiving space 15.
  • the receiving pit 11 is square or rectangular in shape.
  • the receiving pit 11 is provided for receiving a refuse container 16, said refuse container 16 having two refuse container doors 17 at the bottom thereof.
  • the refuse container 16 comprises a lid element 18, said lid element 18 having a chute device 19 for inserting waste or valuable substances.
  • the refuse container 16 comprises a removing device 20, said removing device 20 being provided for lifting the refuse container 16 out of the receiving pit 11 and for replacing the refuse container 16 back into the receiving pit 11, once the refuse container 17 has been emptied.
  • the removing device 20 is some kind of a hook device which interacts with a corresponding crane device.
  • the underground refuse collecting apparatus 10 further comprises a safety system 30, said safety system 30 comprising a number of key components.
  • a first key component is a safety platform 40, which is movably mounted inside the receiving pit 11 between a first ground position, as shown in Figure 1 , and a second safety position, which is shown in Figure 4 .
  • the safety platform 40 is square or rectangular in shape.
  • the safety platform 40 comprises a platform frame 41 and a platform surface 42 being mounted to the platform frame 41.
  • the platform surface 42 is made of a lightweight material and has a net or mesh structure.
  • a second key component is a lifting device for lifting the safety platform 40, said lifting device comprising a number of elastic strands 50.
  • said lifting device comprising a number of elastic strands 50.
  • four such elastic strands 50 are provided, each elastic strand 50 being mounted to the square shaped safety platform 40 at a corner thereof. With a first end 51, each elastic strand 50 is connected to the safety platform 40.
  • the elastic strands 50 are guided over guidance reels 53 respectively, each guidance reel 53 being mounted to the receiving pit 11 at the upper edge thereof. By means of said guidance reels 53, the elastic strands 50 are directed back to the pit ground 13, where the elastic strands 50 are connected to the pit ground 13 via their second ends 52 respectively.
  • the safety platform 40 On which the refuse container 16 is placed, is lifted upwards due to the restoring forces of the elastic strands 50.
  • the pit opening 14 is closed by the safety platform 40.
  • a person 102 as shown in Figure 4 , can now cross the pit opening 14 being closed by the safety platform 40 without having the risk of falling into the receiving pit 11.
  • a third key component is a spring-loaded locking device 60 which will be explained in more detail with regard to Figure 6 further below. As shown in the Figures four such spring-loaded locking devices 60 are provided two of them each being arranged at opposite sides of the platform frame 41.
  • Figure 5 depicts a different embodiment of the underground refuse collecting apparatus 10, which however is similar to the first embodiment shown in Figures 1 to 4 . Therefore, the same components are designated with the same reference numerals. With this regard, at this point, full reference is made to the description of Figures 1 to 4 . In the following, only the differences between both embodiments are described. Whilst the elastic strands 50 according to Figures 1 to 4 are connected with their second ends 52 to the pit ground 13, the elastic strands 50 according to Figure 5 are connected with their second ends to the guidance reel 53, said guidance reels 53 serving as a member to reeling the elastic strands 50.
  • Figure 6 depicts a spring-loaded locking device 60, which is mounted to the platform frame 41, said platform frame 41 surrounding the platform surface 42 of safety platform 40.
  • the spring-loaded locking device 60 comprises a spring-loaded wheel 61, which is mounted to a wheel base 62.
  • the wheel base 62 is slidably mounted inside a receiving recess 63, said receiving recess 63 further housing a spring member 64. If the wheel base 62 is pushed into the receiving recess 63, the spring member 64 gets compressed, thus creating a restoring force.
  • Figures 7 to 9 depict a first embodiment of how the spring-loaded locking device 60 of Figure 6 is used.
  • the spring-loaded locking device 60 interacts with an interaction device 70.
  • the interaction device 70 is provided as a recess 71, said recess 71 being provided as a cavity formed at the inner surface 12a of pit side wall 12., said inner surface 12a being directed to the receiving space 15.
  • the locking device 60 gets activated, if the spring-loaded wheel 61, which runs along the inner surface 12a of the pit side wall 12 comes to rest in the recess 71.
  • Figures 10a to 10c show a different functional embodiment of the spring-loaded locking device 60 according to Figure 6 .
  • the interaction device 70 is configured in a different way as compared to the interaction device shown in Figures 7 to 9 .
  • the interaction device 70 comprises a projection 72, which protrudes from the inner surface 12a of the pit side wall12 into the receiving space 15.
  • the locking device 60 gets activated, when the spring-loaded wheel 61, which runs along the inner surface 12a of the pit side wall 12 comes to rest on the projection 72.
  • This underground refuse collecting apparatus 10 consists of a static concrete, steel or plastic receiving pit 11 (see for example Figures 3 and 4 ) containing a mobile underground refuse container 16 (see for example Figure 3 ). Volumes can range from 1m 3 up to 5m 3 of volume or even more.
  • the mobile refuse container 16 is lifted out of the receiving pit 11, preferably by means of a crane, that is holding the bottom doors 17 closed (see Figure 3 ) while lifting. While the refuse container 16 is lifted, a safety platform 40, which is positioned below the mobile refuse container 16 (see for example Figures 1 to 3 ) is moving with the mobile refuse container 16 upwards.
  • the safety platform 40 is connected to multiple elastic strands 50 (see for example Figures 1 to 5 ), which are stretched to provide an elastic tensile force in the starting position ( Figure 1 ).
  • this elastic tensile force will pull the safety platform 40 upwards.
  • the safety platform 40 While the safety platform 40 is moving upwards, it is guided in its movement by spring load wheels 61 of spring-loaded locking devices 60 (see Figure 6 to 9 for example), that follow the contours of the sides 12 of the receiving pit 11.
  • the spring-loaded wheels 61 reach a level where the pit contours contain a recess 71 in the sides 12 of the pit 11.
  • the wheels 61 will be extended into the recess 71 by the pushing of the spring member 64, locking the safety platform 40 in a horizontal position (see Figure 8 ).
  • the depth of the recess 71 which is slightly deeper than the center of the wheel 61, will prevent the safety platform 40 to move downward when a force or human weight is applied to any point on the surface of the safety platform 40 (see Figure 4 ) Together with the force from the elastic strands 50, the safety platform 40 will stay into position.
  • the locking device 60 does not function properly, the load applied to the safety platform 40 by the elastic strands 50 will still be strong enough to lift a person and will prevent the person to fall into the receiving pit 11.
  • the safety platform 40 is unlocked when the mobile refuse container 16 with a mass of over 250 kgs is placed back. This weight will force the spring-loaded wheels 61 to move back in the recess 71, pushing the wheel base 62 against the direction of the spring load of spring member 64.
  • the wheel base 62 preferably has a shape that will keep the wheel 61 in vertical position, such as square, rectangular (see Figure 6 ) , H profile, I-profile or any other shape that prevents the wheel 61 from rotating around the axis of the wheel base 62.
  • the interaction device 70 may be provided as a projection 72 protruding from the pit side wall 12, in particular on the inner surface 12a of the pit side wall 12 (see Figures 10a to 10c ).
  • the projection 72 is a positive geometry coming out of the inner surface 12a of the pit side walls 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Refuse Collection And Transfer (AREA)

Claims (15)

  1. Sicherheitssystem (30) für eine Unterflur-Müllsammelvorrichtung (10), wobei das Sicherheitssystem (30) eine Sicherheitsplattform (40) und eine Hebevorrichtung zum Bewegen der Sicherheitsplattform (40) zwischen verschiedenen Positionen aufweist, wobei die Hebevorrichtung eine Anzahl elastischer Stränge (50), vorzugsweise zwei oder mehr elastische Stränge (50), aufweist, wobei jeder elastische Strang (50) mit der Sicherheitsplattform (40) verbunden ist, dadurch gekennzeichnet, dass das Sicherheitssystem (30) weiterhin mindestens eine federbelastete Verriegelungsvorrichtung (60) zum Halten der Sicherheitsplattform (40) in einer definierten Position aufweist, wobei die federbelastete Verriegelungsvorrichtung (60) an der Sicherheitsplattform (40) angeordnet ist.
  2. Sicherheitssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Sicherheitsplattform (40) einen Plattformrahmen (41) und eine Plattformoberfläche (42) aufweist, wobei die Plattformoberfläche (42) von dem Plattformrahmen (41) umgeben ist oder die Plattformoberfläche an dem Plattformrahmen angeordnet ist, wobei die Plattformoberfläche (42) vorzugsweise aus einem leichten Material hergestellt ist und/oder ein Netz undloder ein Gittergewebe ist.
  3. Sicherheitssystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die elastischen Stränge (50) an den Rändern der Sicherheitsplattform (40) mit dieser verbunden sind.
  4. Sicherheitssystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens einer der elastischen Stränge (50) über eine Führungseinrichtung, insbesondere über eine Führungsrolle (53) geführt ist, oder dass mindestens einer der elastischen Stränge (50) weiterhin mit einer Führungseinrichtung, insbesondere mit einer Führungsrolle (53), verbunden ist.
  5. Sicherheitssystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die elastischen Stränge (50) die Eigenschaft haben, elastische Rückstellkräfte zu erzeugen, insbesondere progressive Rückstellkräfte zu erzeugen.
  6. Sicherheitssystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die elastischen Stränge (50) aus einem elastischen Material hergestellt sind oder zumindest teilweise aus einem elastischen Material hergestellt sind, und dass das elastische Material vorzugsweise ausgewählt ist aus der Gruppe bestehend aus Gummi, Kautschuk, Latex.
  7. Sicherheitssystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die mindestens eine federbelastete Verriegelungsvorrichtung (60) seitlich von der Sicherheitsplattform (40), insbesondere von dem Plattformrahmen (41), absteht.
  8. Sicherheitssystem nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die federbelastete Verriegelungsvorrichtung (60) ein federbelastetes Rad (61) aufweist.
  9. Sicherheitssystem nach Anspruch 8, dadurch gekennzeichnet, dass das federbelastete Rad (61) an einer Radbasis (62) montiert ist, wobei die Radbasis (62) beweglich in einer Aufnahmeaussparung (63) montiert ist, wobei die Aufnahmeaussparung ( 63) der Sicherheitsplattform (40) zugeordnet ist und dass innerhalb der Aufnahmeaussparung (63) ein Federelement (64) angeordnet ist, das mit der Radbasis (62) zusammenwirkt.
  10. Unterflur-Müllsammelvorrichtung (10), aufweisend einen Aufnahmekasten (11), wobei der Aufnahmekasten (11) eine Kastenseitenwand (12) und eine Kastenöffnung (14) zum Aufnehmen eines Müllbehälters (16) aufweist, wobei die Vorrichtung (10) weiterhin aufweist einen innerhalb der Aufnahmekastens (11) beweglich angeordneten Müllbehälter (16) und ein Sicherheitssystem (40) zum Verschließen der Kastenöffnung (14), sobald der Müllbehälter (16) aus dem Aufnahmekasten (11) entfernt wurde, dadurch gekennzeichnet, dass das Sicherheitssystem (30) nach einem der Ansprüche 1 bis 9 bereitgestellt ist.
  11. Unterflur-Müllsammelvorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Sicherheitsplattform (40) des Sicherheitssystems (30) innerhalb des Aufnahmekastens (11) beweglich angeordnet ist zwischen einer ersten Bodenposition, in der der Müllbehälter (16) innerhalb des Aufnahmekastens (11) gelagert ist, und einer zweiten Sicherheitsposition, in der der Müllbehälter (16) aus dem Aufnahmekasten (11) entfernt ist und in der die Kastenöffnung (14) durch die Sicherheitsplattform (40) verschlossen ist.
  12. Unterflur-Müllsammelvorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die elastischen Stränge (50) des Sicherheitssystems (30) derart bereitgestellt sind, dass sie eine maximale elastische Rückstellkraft ausüben, wenn sich die Sicherungsplattform (40) in der ersten Bodenposition befindet.
  13. Unterflur-Müllsammelvorrichtung nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Kastenseitenwand (12) eine Wechselwirkungseinrichtung (70) zum Zusammenwirken mit der federbelasteten Verriegelungsvorrichtung (60), insbesondere einem federbelasteten Rad (61), aufweist, wobei die Wechselwirkungseinrichtung (70) vorzugsweise in der Lage ist, die Sicherheitsplattform (40) in der zweiten Sicherheitsposition zu fixieren.
  14. Unterflur-Müllsammelvorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass die Wechselwirkungseinrichtung (70) aufweist ein an der Kastenseitenwand (12) angeordnetes Aufnahmeprofilelement, oder eine innerhalb der Kastenseitenwand (12) ausgebildete Aussparung (71), oder einen von der Kastenseitenwand (12) vorstehenden Vorsprung (72).
  15. Unterflur-Müllsammelvorrichtung nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, dass sie weiterhin eine dem Müllbehälter (16) zugeordnete Rutscheinrichtung (19) aufweist, und die zur Aufnahme von in den Müllbehälter (16) einzufüllendem Müll ausgebildet ist, und/oder eine Vorrichtung (20) zum Entfernen des Müllbehälters (16) aus dem Aufnahmekasten (11) und zum Einsetzen des Müllbehälters (12) in den Aufnahmekasten (11).
EP19178838.9A 2019-06-06 2019-06-06 Sicherheitssystem für eine unterirdische müllsammelvorrichtung Active EP3747802B1 (de)

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ES19178838T ES2956807T3 (es) 2019-06-06 2019-06-06 Sistema de seguridad para un aparato de recogida de basura subterráneo
EP19178838.9A EP3747802B1 (de) 2019-06-06 2019-06-06 Sicherheitssystem für eine unterirdische müllsammelvorrichtung

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CN114537931B (zh) * 2022-04-06 2023-03-14 宁波广知电子科技有限公司 一种隐藏式垃圾箱及其工作方法
CN115196218B (zh) * 2022-07-19 2023-07-25 山东瑞宁环境科技有限公司 一种地下垃圾站

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DE4105901A1 (de) 1991-02-26 1992-08-27 Rolf Schroeder Unterfluriges lagergehaeuse mit hubeinrichtung und abdeckung und einem lagerbehaelter
FR2736901B1 (fr) * 1995-07-19 1997-09-05 Allibert Equipement Unite de reception des dechets a mouvement verrouillable/ deverrouillable
FR2853636B3 (fr) * 2003-04-09 2005-07-01 Bernard Martin Michel Boucher Dispositif de securite par filet des caissons beton pour conteneurs enterres a dechets menagers
NL1027432C2 (nl) * 2004-11-05 2006-05-09 Egbert Rotherm Houder voor een ondergronds plaatsbare afvalcontainer.
NL1028372C2 (nl) 2005-02-22 2006-08-23 Konink Bammens B V Veiligheidsvloer voor een afvalverzamelsysteem.
DE202007008598U1 (de) 2007-06-20 2007-09-06 Bauer, Heinz-Dieter Unterflursammelbehälter
FR2984859B1 (fr) * 2011-12-22 2014-02-21 Triologis Installation perfectionnee de collecte selective de dechets en apport volontaire en conteneur enterre unique

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ES2956807T3 (es) 2023-12-28
EP3747802A8 (de) 2021-02-24
EP3747802A1 (de) 2020-12-09

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