Cleaning system and fire protection system

Abstract

The invention relates to a cleaning system (110) comprising a transport device (112) for conveying material to be cleaned (114), wherein the transport device (112) comprises: - at least one driven conveying element (116) for conveying the material to be cleaned (114) along a conveying track, - at least one braking element (118) for stopping the conveying of the material to be cleaned (114) when the braking element (118) is closed, - at least one emergency control (120) configured to bring the braking element (118) into the closed state in an emergency, wherein the braking element (118) is designed to block the conveying of the material to be cleaned (114) in the closed state by laterally engaging the conveying track. The invention further relates to a fire protection system (122).

Description

Technical area

[0001] The invention relates to a cleaning system for cleaning items to be cleaned, comprising a transport element, and a fire protection system. The cleaning system and the cleaning system of the type mentioned can be used, for example, in the field of dishwashing technology, in particular in the field of commercial dishwashing technology. The invention can thus be used in particular in relation to commercial kitchens in which items to be cleaned for the preparation, storage, and serving of food and beverages, for example trays, plates, dishes, and cutlery, must be cleaned in large quantities. The invention particularly relates to the loading of soiled items to be cleaned in a dining room and the transport of these items to a dishwashing area, wherein structural and / or control measures are described to ensure fire protection safety.

[0002] However, other types of cleaning systems, transport elements, dishwashers and / or items to be cleaned can also be modified in principle according to the invention, and / or the invention can be used to clean other types of items to be cleaned.

[0003] DE 27 18 164 A1 relates to a device for automatically loading a dishwasher with items of crockery, in particular plates, and for clearing these items of crockery or plates.

[0004] CA 2 385 973A1 relates to a method and assembly for cleaning and refilling tableware for food service, e.g., trays, plates, bowls, and cutlery, as may be used by airlines and in healthcare. The items are provided in sets and stored together in sets. After each set is washed, it is cooled if necessary and assigned to one of several different refill lines for refilling and reuse. This can be achieved by a conveyor line along which a cleaning machine, a dryer, and a cooling unit are arranged to keep the items together, as well as a refill station downstream of the conveyor line. The invention provides a basket with a base part and a frame part. The frame part is insertable into the base part and can be replaced by other frames to accommodate different sets of items.Separate lines can be provided for galley and business class goods, and at the same time, commissary carts can be refilled in a separate area.

[0005] CN 108 670 146 A relates to an overload alarm device for a dishwasher. The overload warning device comprises a sealing layer, an insulating layer, and a current monitor. The edge of the current monitor is coated with the sealing layer, the outer layer of the current monitor is bonded to the insulating layer, a square recess is formed between the current monitor and the insulating layer, ear-shaped insulating strips are arranged on the outer surface of the current monitor, the insulating strips are connected by insulating screws, and an overload warning device is arranged in the current monitor.The overload alarm device of the dishwasher is simple in structure and reasonable in design, circuit overload accidents can be effectively prevented, isolation operation can be effectively carried out, and the overload alarm device is widely suitable for the production and processing industry of the dishwasher.

[0006] GB 2 575 085 A relates to an apparatus for transferring goods from a conveyor in a dishwasher system to another area of ​​the dishwasher system, comprising a conveyor including a plurality of goods conveying elements. The conveyor has a goods transfer area in which the plurality of elements are configurable in a goods transport configuration for transporting goods on a surface of the elements through the dishwasher system and a goods transfer configuration for transferring goods from the conveyor to another area of ​​the dishwasher system. The apparatus also includes means for configuring the plurality of elements in the goods transport configuration when an item is to be conveyed through the goods transfer area and for configuring the plurality of elements in the goods transfer configuration when an item is to be transferred to another area of ​​the dishwasher system.The goods transport elements are preferably flexible cords or belts, and the means for configuring the plurality of elements are pulleys. The device can be used for trays.

[0007] DE 10 2019 210 272 A1 relates to a cleaning device for cleaning items to be cleaned held in at least one cleaning basket. The cleaning device comprises at least one cleaning chamber and at least one application device for applying at least one cleaning fluid to the items to be cleaned in the cleaning chamber. The cleaning device has an inlet side on a first side of the cleaning chamber and an outlet side on a second side of the cleaning chamber opposite the first side. The cleaning device has a basket guide device, which has an input area arranged on the inlet side for placing the cleaning basket on the basket guide device and an outlet area arranged on the outlet side for removing the cleaning basket from the basket guide device.The basket guide device is configured to guide the cleaning basket from the input area into the cleaning chamber and from the cleaning chamber to the output area. The cleaning device further comprises at least one basket return device configured to guide the cleaning basket from the output side back toward the input side, independently of the basket guide device.

[0008] US 5,876,515 A relates to a method for washing items in an automatic washing line and to an automatic washing device. When items are conveyed to a washing zone, the method uses a sensor to determine whether there is a continuous flow of items to the washing zone. If the flow of items is interrupted, the washing process in the washing zone is interrupted. The device includes a sensor that detects whether there is a continuous flow of laundry to the washing zone. Furthermore, the device includes a program for interrupting the washing process in the washing zone if the sensor detects an interruption in the flow of laundry.

[0009] US 6 152 154 A relates to a monorail conveyor system for transporting dishes to and from a dishwashing unit, comprising a monorail track that can be attached to a ceiling or a support frame, the monorail track being of considerable length, so that it forms a loop that traverses the entire dishwashing system. The monorail track is hollow and contains a continuous chain supported by a plurality of wheels. A series of dish rack holders are each suspended from the chain by vertically extending rods that are pivotally attached to the chain conveyor, allowing the holder to tilt at a loading or unloading station. Guide wheels and an elongated horizontal rail are provided to either hold the holders in a horizontal position or to allow them to tilt at the aforementioned stations. The guide wheels are preferably attached to the underside of the rods beneath the holders.The rail is firmly mounted and exerts a horizontal force on each guide wheel. Technical background

[0010] In the majority of cases involving commercial catering and / or communal catering, a dishwashing area is located in a room separate from the dining room. It may happen that a diner places a tray onto a conveyor element, usually a conveyor element with at least two conveyor belts, in the dining room. From there, the items to be cleaned are conveyed by the conveyor element through an opening in a wall into the dishwashing area. Very often, this wall also forms a fire wall, so that a fire damper can be installed in the opening, which closes in the event of a fire. When the fire damper is closed, it must be reliably ensured that no tray is inside the opening, precisely to meet safety requirements.It must therefore be ensured that the fire damper is designed in such a way that no cleaning material is in the area of ​​the damper when the damper is triggered and closes.

[0011] Since the area where guests place their items to be cleaned, particularly their trays, on the conveyor system is often located in the dining room, installation space and design aspects play an important role. For example, the entire visible area of ​​the conveyor system is designed with a solid granite surface. In addition, the area where the items to be cleaned, i.e. the trays, are usually kept as short as possible. This means that no great lengths are planned for the conveyor system, and therefore there is hardly any buffer space in front of the fire wall or the slide. To make matters worse, it can usually be assumed that the regular power supply to the dishwasher and the transport device will be interrupted in the event of an emergency.

[0012] There are different systems known that ensure that the wall opening assigned to the slider is free when closing.

[0013] Often, separate operation of several conveyor elements and their drives is provided, with a distinction being made between an upstream and a downstream area of ​​the gate valve. To ensure that the gate valve area is clear of cleaning material, the discharge conveyor element downstream of the gate valve is often supplied with emergency power, while the incoming conveyor line upstream of the gate valve is deactivated.

[0014] Sometimes, alternatively, a retaining device or braking element is provided in front of the slide cutout and a continuous conveyor system, whereby the conveyor system remains in motion in the event of a fire, at least for a certain period of time. The conveyed cleaning items, especially the trays, are blocked by the retaining device. Typically, the retaining device is moved upwards from the bottom of the belt body, so that subsequent trays are lined up against it and mechanically secured against further conveyance. In this way, the area into which the fire damper falls in an emergency is cleared.

[0015] In particular, so that different widths and designs of the items to be cleaned, especially trays, such retaining devices are often installed in the middle of the conveyor track, which is often not visually appealing and also difficult to clean. Furthermore, in an emergency, a pin and / or bolt moves from the bottom upwards into the conveyor track. If the retaining device is activated when triggered, a tray located above it can be influenced in such a way that it is deflected diagonally upwards. This can create an inclined plane that acts as a ramp for subsequent trays, which can cause them to jam uncontrollably or lead to further items to be cleaned that are on the tray falling out. In this case, there is no guarantee that the fire damper will perform the desired function.To counteract this and prevent further disruption, such a retaining device must be installed at a distance from the fire damper that is significantly greater than the length of a tray, e.g., at least 700 mm. This cannot always be implemented due to available installation space. Object of the invention

[0016] It would therefore be desirable to provide a cleaning system and a fire protection system for cleaning items to be cleaned which at least largely avoid the disadvantages of known devices and methods of the type mentioned.

[0017] In particular, a safe cleaning system should be provided which, in the event of an emergency, such as a fire, enables reliable separation between different rooms in a building, in particular a scullery and a dining room.

[0018] In particular, an efficient and / or cost-effective fire protection system shall continue to be provided, which in particular provides for safe and reliable emergency control.

[0019] In particular, the cleaning system and / or the fire protection system should continue to be easy and effective to clean. General description of the invention

[0020] This problem is addressed by a cleaning system and a fire protection system having the features of the independent patent claims. Advantageous further developments, which can be implemented individually or in any combination, are presented in the dependent claims.

[0021] In the following, the terms "have," "have," "comprise," or "include," or any grammatical variations thereof, are used non-exclusively. Accordingly, these terms can refer both to situations in which, besides the features introduced by these terms, no further features are present, or to situations in which one or more further features are present. For example, the expression "A has B," "A has B," "A comprises B," or "A includes B" can refer both to the situation in which, apart from B, no further element is present in A (i.e., a situation in which A consists exclusively of B), and to the situation in which, in addition to B, one or more further elements are present in A, for example, element C, elements C and D, or even further elements.

[0022] Furthermore, it should be noted that the terms "at least one" and "one or more," as well as grammatical variations of these terms, when used in connection with one or more elements or features and intended to express that the element or feature may be provided singly or multiple times, are generally used only once, for example, when the feature or element is first introduced. Upon subsequent re-mention of the feature or element, the corresponding term "at least one" or "one or more" is generally no longer used, without limiting the possibility that the feature or element may be provided singly or multiple times.

[0023] Furthermore, the terms "preferably," "in particular," "for example," or similar terms are used below in connection with optional features, without limiting alternative embodiments. Thus, features introduced by these terms are optional features, and these features are not intended to limit the scope of the claims, and in particular the independent claims. Thus, as those skilled in the art will recognize, the invention can also be carried out using other embodiments. Similarly, features introduced by "in one embodiment of the invention" or "in an embodiment of the invention" are understood as optional features, without limiting alternative embodiments or the scope of the independent claims.Furthermore, these introductory expressions are intended to leave untouched all possibilities of combining the features introduced thereby with other features, whether optional or non-optional.

[0024] In a first aspect of the present invention, a cleaning system is proposed. The term "cleaning," as used herein, is a broad term to which its usual and common meaning should be attributed, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a process in which items to be cleaned are freed from adhering macroscopic or even microscopic contaminants and / or in which such contaminants are at least partially removed. In addition, a disinfection effect can optionally be exerted.

[0025] The term "cleaning system" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to at least one element of a technical device, wherein the technical device is intended to clean items to be cleaned. The cleaning system comprises a transport device for conveying items to be cleaned. The term "transport device" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning.The term can, without limitation, refer in particular to any device configured to set at least one element, acted upon by the transport device, in motion, in particular a linear motion. The transport device can be configured to feed items to be cleaned to a dishwasher, thus transporting items to be cleaned at least close to the dishwasher. The transport device can be designed to preferably transport trays, with additional items to be cleaned, especially plates, glasses, and / or cutlery, being arranged on the tray.

[0026] The term "item to be cleaned," as used herein, is a broad term to which its ordinary and customary meaning should be given, as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. The term can refer, without limitation, to any items that can be cleaned in the cleaning device. One item can be cleaned, or multiple items can be cleaned simultaneously or sequentially. In particular, the items to be cleaned can be items that are used directly or indirectly for the preparation and / or storage and / or presentation of food and / or beverages, for example, dishes, cutlery, trays, bowls, glasses, cups, pots, pans, or similar items.Accordingly, the dishwasher can also be designed, for example, as a dishwasher for commercial use in commercial kitchens or communal catering kitchens. Trays, in particular trays on which additional items to be cleaned, especially plates, glasses, and / or cutlery, can be arranged, can be of particular importance for the present invention.

[0027] The transport device comprises at least one driven conveyor element for conveying the items to be cleaned along a conveyor track. The term "conveyor element" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to any element designed to transport at least one object. The conveyor element can transport the object from a first location to another, second location. The conveyor device can engage the items to be cleaned in a form-fitting and / or force-fitting manner such that the items to be cleaned can be set in a conveying motion. The conveyor element can be selected from the group consisting of a driven roller conveyor, a conveyor belt, a plate conveyor, a belt conveyor, and a conveyor chain.

[0028] The conveying element can define a "conveyor track" for the items to be cleaned, in particular such that items to be cleaned that are transported and / or conveyed by the conveying element follow the conveyor track. Alternatively or additionally, the conveyor track can be defined, in particular, by a guide. The guide can be formed, in particular, by at least one, in particular lateral, contact surface for the conveyed items to be cleaned, which, alternatively or additionally, is designed such that the items to be cleaned are guided in the conveyor track above the conveying element. The guide can, in particular, be a tray guide that has been optimized, for example, for specified tray widths, lengths, and / or heights.The conveyor track can be provided above the conveyor element, in particular in such a way that the positive and / or non-positive connection between the conveyor element and the items to be cleaned results at least partially from the effect of gravity on the items to be cleaned.

[0029] The driven conveying element can be driven by a drive. The term "drive," as used here, is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to an actuator configured to generate and / or transmit movement. In particular, the drive can comprise at least one electromechanical energy converter configured to convert electrical energy into mechanical energy, in particular rotational energy. In particular, the drive can comprise at least one motor, in particular an electric motor. The drive can furthermore be in a force-locking connection to the conveying element, in particular via a shaft.The drive can be configured to effect the conveying movement of the conveying element, in particular in a conveying direction. The drive can be configured such that, during its operation, the conveying element transports the items to be cleaned, in particular in the conveying direction.

[0030] The transport device further comprises at least one braking element for stopping the conveyance of the items to be cleaned when the braking element is closed. The braking element is designed to block the conveyance of the items to be cleaned in the closed state by laterally engaging the conveyor track. The items to be cleaned can be a tray. Additional items to be cleaned, for example, dishes, can be provided on the tray.

[0031] The term "braking element," as used here, is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to any component that reduces and / or stops the movement and / or speed of an object. The braking element can therefore have at least two states. The braking element can, in particular, have a first state, thus a closed state, in which the braking element prevents and / or blocks the conveyance of the cleaning item, in particular so that the cleaning item is stationary. The braking element can, in particular, have a second state, thus an open state, in which the braking element enables the conveyance of the cleaning item.In the "closed state," the braking element can engage the item being cleaned, particularly directly. For example, the braking element can engage the item being cleaned in such a way that it completely counteracts the force exerted by the transport element on the item being cleaned to enable its transport, and the item being cleaned remains stationary.

[0032] The transport device can be configured such that the conveying element can be driven independently of the braking element, in particular even when the braking element is closed. The braking element can be designed such that it blocks the items to be cleaned while the conveying element can still be driven. For example, the braking element can be designed such that, in the closed state, the items to be cleaned are conveyed by the conveying element against the braking element in such a way that the items to be cleaned ultimately rest against the braking element, in particular such that it exerts a force on the items to be cleaned counter to a conveying direction of the conveying element. In this way, in particular, the braking element can block the conveying of the items to be cleaned.

[0033] The term "lateral," as used herein, is a broad term to which its ordinary and customary meaning should be given, as understood by one skilled in the art. The term is not limited to any specific or adapted meaning. The term may, without limitation, refer in particular to a spatial position of a first element relative to a second element, in which the first element is arranged offset from the second element in a horizontal direction. For example, the weight of the items being cleaned may define a vertical spatial direction. The conveying direction may define a first horizontal spatial direction. A third spatial direction or second horizontal spatial direction may be defined as a direction perpendicular to the vertical spatial direction and the first horizontal spatial direction.This third spatial direction can be defined as the "lateral direction", and two elements that are offset from each other in this third spatial direction can be described as "laterally offset from each other".

[0034] Accordingly, the term "lateral engagement in the conveyor track," as used here, is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a mechanical engagement in the lateral direction, i.e., an engagement that has at least one movement component and / or at least one force component in the spatial direction defined above, i.e., a spatial direction perpendicular to the weight of the items being cleaned and perpendicular to the conveying direction. Thus, in the closed state, the braking element can occupy a lateral region of the conveyor track in such a way that the conveying of the items being cleaned is blocked or at least inhibited.Lateral engagement can refer to the braking element occupying a space horizontally offset from a main axis and / or a reference plane defined by the conveyor track and / or the conveyor element. In order to occupy a lateral area of ​​the conveyor track, at least part of the braking element can protrude laterally into the conveyor track, specifically from an area located laterally next to the conveyor track, particularly so that it can come into contact with the items to be cleaned. In particular, at least another part of the braking element can rest laterally next to the conveyor track on the transport device, specifically on a conveyor table of the transport device.The lateral engagement can also occur during an engagement movement of the braking element from the open state to the closed state in such a way that the part of the braking element that protrudes laterally into the conveyor track in the closed state initially does not protrude laterally into the conveyor track in the open state, but is moved into the conveyor track during the engagement movement. The engagement movement can be at least partially or completely in a plane parallel to, specifically and additionally above, the conveyor track and / or the conveyor element. In this case, the lateral engagement can be distinguished from an engagement into the conveyor track from above and / or below.

[0035] The transport device further comprises at least one emergency control configured to bring the braking element into the closed state in an emergency. The term "emergency control" as used herein is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to a single-part or multi-part device of the cleaning device, especially the transport device, which is configured to fully or partially control and / or regulate the operation of the transport device.In particular, the emergency control can be configured to change, in particular to control and / or regulate, one or more operating parameters of the braking element. For example, the emergency control can change a position and / or a state of the braking element, in particular indirectly, for example by means of a control signal that the emergency control transmits to a servomotor controller. In particular, the emergency control can be designed to bring the braking element into an open state, thus into an open position, and / or into a closed state, thus into a closed position, especially depending on an external fire protection system.

[0036] The transport device may, in particular, comprise at least one data processing device, for example, at least one processor. The term "processor," as used herein, is also a broad term, which should be given its usual and common meaning as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term may, without limitation, refer in particular to any logical circuit configured to perform basic operations of a computer or system and / or to a device configured to perform calculations or logical operations. In particular, the processor may be configured to implement basic instructions that control a computer or computer system.For example, the processor may have at least one component selected from the group consisting of: an arithmetic logic unit (ALU); a floating-point unit (FPU), such as a mathematical coprocessor or a numerical coprocessor; a plurality of registers, in particular registers configured to supply operands to the ALU and to store results of operations; a memory, in particular a data memory, such as an L1 and / or L2 cache data memory. In particular, the processor may have a single core or multiple cores. In particular, the processor may be a central processing unit (CPU) or comprise such a central processing unit.Additionally or alternatively, the processor may be a microprocessor or comprise a microprocessor, so that, in particular, the components of the processor may be comprised in a single integrated circuit chip. Alternatively or additionally, however, the processor may also comprise one or more application-specific integrated circuits (ASICs) and / or one or more field-programmable gate arrays (FPGAs) or similar components. The processor may in particular be configured, in particular by software programming, to perform one or more evaluation operations.

[0037] Accordingly, the emergency control system can be implemented partially by hardware or / and alternatively or additionally, entirely or partially by software. Furthermore, the emergency control system can comprise at least one volatile and / or non-volatile data memory. Furthermore, the emergency control system can comprise at least one interface, for example a human-machine interface for inputting commands and / or outputting information, and / or a wireless or wired interface for the unidirectional or bidirectional exchange of data and / or commands between the cleaning system and at least one further device. The emergency control system can, in particular, comprise at least one computer and / or at least one processor.

[0038] The emergency control system can be designed such that it can be connected to an external fire protection system. The term "fire protection system" as used herein is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to at least one device that detects, prevents, or contains a fire. The fire protection system can be designed such that it distinguishes between at least two different states. In particular, in a first state, in a normal case, the fire protection system cannot send an emergency signal and / or a freewheel signal to the transport device, specifically the emergency control system, so that the emergency control moves and / or holds the braking element in an open state.Normally, no fire can be assumed. In particular, in a second state, in an emergency, the fire protection system can send an emergency signal and / or no freewheel signal to the transport device, specifically the emergency control, so that the emergency control moves and / or holds the braking element in a closed state. In an emergency, a fire can be assumed. The fire protection system can, in particular, comprise smoke detectors or emergency call buttons to detect a fire. Other measures are also possible. The fire protection system can be an external fire protection system insofar as it is provided on the building side and is not assigned to the transport device. In order to be connected to an external fire protection system, the emergency control can have an interface. The emergency control can receive a control signal from the fire protection system.Additionally or alternatively, the emergency control system can be at least partially and / or completely integrated into the fire protection system.

[0039] The transport device can comprise an emergency power supply unit, wherein the emergency power supply unit is configured to supply a drive of the conveying element with power in an emergency, in particular so that, when the braking element is closed, a region of the conveyor track downstream of the braking element can be conveyed free of cleaning material. The term "emergency power supply unit" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to any device intended to provide a continuous power supply, in particular even in the event that an external power supply is interrupted.The emergency energy supply unit can be an emergency power supply unit that is particularly configured to provide emergency power. The emergency energy supply unit can comprise an energy storage device and / or an energy generator to provide the emergency energy. The emergency energy supply unit cannot normally provide and / or supply energy to the transport device. The energy storage device can normally be charged. The emergency energy supply unit can provide and / or supply energy to the transport device in an emergency.

[0040] The braking element may comprise at least one servomotor which is configured to bring the braking element from the closed state into an open state during operation, wherein the braking element does not block the conveyance of the cleaning material in the open state, and at least one passive return element which is configured to bring the braking element from the open state into the closed state.

[0041] The term "actuator" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to a mechanical and / or electromechanical actuator that performs an actuating movement. The actuator can be selected from the group consisting of: an electric actuator; a pneumatic actuator; and a hydraulic actuator. The actuator can, in particular, generate a rotary actuating movement. Alternatively or additionally, the actuator can generate a translatory actuating movement. The actuating movement can take place for transferring from a first position, in particular associated with an open state of the braking element, to a second position, in particular associated with a closed state of the braking element.Alternatively or additionally, the adjustment movement can take place in the opposite direction.

[0042] The term "resetting element" as used herein is a broad term to which its usual and common meaning should be given, as understood by one skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to a device selected to move a mechanism into a reference position. The reset element can be a passive reset element, i.e., a reset element that moves the mechanism into the reference state without a drive. According to the invention, the reference position can correspond to the closed state of the braking element.The return element can exert a preload on the braking element, which drives the braking element from the open state to the closed state, in particular to effect the engagement movement, wherein the servo motor is designed such that it overcomes the preload during operation and holds the braking element in the open state.

[0043] The return element can be selected from the group consisting of: a spring element, especially a metallic spring, a gas spring, an elastomer spring; and a system with counterweights. At least two return elements can be provided, each of which is configured to move the braking element from the open state to the closed state.

[0044] The actuator can be a free-running actuator, in particular a non-self-locking electric motor. The term "free-running actuator" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, in particular to a motor that generates no resistance, in particular no torque, when moved externally, in particular without being actively operated itself. The free-running motor can refer to a motor that can be moved from the first position, in particular associated with the open state of the braking element, to the second position, in particular associated with the closed state of the braking element, without generating resistance counter to the actuating movement and / or blocking the actuating movement.The free-running actuator may be an electric motor. The term "self-locking electric motor" as used herein is a broad term, which should be given its ordinary and common meaning as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. The term may refer, without limitation, in particular to a motor that offers resistance to an external movement, particularly in such a way that the external movement is braked and / or blocked. As such, a self-locking electric motor cannot be a free-running motor. A "non-self-locking electric motor" may be a free-running motor.

[0045] The servomotor can be arranged below the conveyor track and / or the conveyor element in a conveyor table. The conveyor table can have and / or be designed with a housing, specifically a casing and / or a belt body, in which the servomotor is located. The conveyor table can have a supporting function. In particular, the conveyor element can be arranged on the conveyor table.

[0046] The reset element can be integrated into the actuator. The actuator can exert a force on the brake element via a shaft of the brake element. The actuator can be designed such that, in the event of an interrupted power supply to the actuator, it does not overcome the preload or force of the reset element, in particular so that the reset element brings the brake element into the closed state.

[0047] The transport device can further comprise a servomotor control, wherein the servomotor is operated by means of the servomotor control, wherein the servomotor control normally operates the servomotor such that the braking element is in the open state, and in particular in an emergency operates the servomotor such that the braking element is in the closed state. The servomotor control can have an interface to the emergency control and / or be at least partially or completely integrated into the emergency control. The term "actuator control" as used herein is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to any specific or adapted meaning.The term can, without limitation, refer in particular to a one-part or multi-part device of the cleaning device, especially the transport device, which is configured to fully or partially control and / or regulate the operation of the transport device. In particular, the actuator control can be configured to change, in particular to control and / or regulate, one or more operating parameters of the braking element. For example, the actuator control can change a position and / or a state of the braking element, in particular directly. In particular, the actuator control can be designed to bring the braking element into an open state, thus into an open position, and / or into a closed state, thus into a closed position.

[0048] As already explained, the transport device can in particular comprise at least one data processing device, for example at least one processor. Accordingly, the actuator control device can be implemented partially by hardware or, alternatively or additionally, entirely or partially by software. Furthermore, the actuator control device can comprise at least one volatile and / or non-volatile data memory. Furthermore, the actuator control device can comprise at least one interface, for example a human-machine interface for inputting commands and / or outputting information, and / or a wireless or wired interface for the unidirectional or bidirectional exchange of data and / or commands between the cleaning system and at least one further device. The actuator control device can in particular comprise at least one computer and / or at least one processor.

[0049] To operate the actuator so that the braking element is in the closed state in an emergency, the power supply to the actuator can be interrupted, or the actuator can actively close the braking element. In particular, the force that the actuator applies during active operation to counteract the passive return element of the braking element may no longer be sufficient to keep the braking element open. The braking element is closed, particularly in this case, by the passive return element.

[0050] The transport device is designed such that items to be cleaned which are located partly downstream and partly upstream of the braking element in a conveying direction during an engagement movement of the braking element from the open state to the closed state are conveyed completely downstream of the braking element. For example, items to be cleaned which protrude from an area downstream of the braking element into an area upstream of the braking element can be conveyed from this area. In particular, an area which is directly downstream or behind the braking element in a conveying direction can be conveyed free of items to be cleaned. The transport device can be designed such that further items to be cleaned which follow the items to be cleaned which are located partly downstream and partly upstream of the braking element in a conveying direction during the engagement movement of the braking element from the open state to the closed state are blocked.

[0051] The conveyor track can be arranged above the conveyor element, and the braking element can be configured, in the closed state, to act on items to be cleaned above the conveyor element, in particular on at least one tray conveyed by the conveyor element. For example, the braking element can be provided above the conveyor element at a height between 1 mm and 70 mm, in particular between 2 mm and 50 mm.

[0052] The braking element can be designed such that, in the closed state, it blocks the items to be cleaned by engaging them, in particular engaging them against an end face of the items to be cleaned, thus a tablet. The braking element can have at least one wing, wherein at least a portion of the wing is pivotable about a rotational axis into and out of the conveyor track, in particular so that at least this portion of the wing can be brought into contact with the items to be cleaned, specifically against an end face of the items to be cleaned, in particular the tablet. The term "end face" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning.The term can, without limitation, refer in particular to the side of the item to be cleaned that is furthest upstream in the conveying direction, which is located, for example, in the engagement area of ​​the braking element and can therefore be brought into contact with the braking element. The front side can be orthogonal to the conveying direction. The wing can be configured to pivot into the conveying track above the conveying element, in particular above the conveying element, in particular at the level of at least one tray transported by the conveying element.

[0053] The vane can have at least one angle, so that the vane, particularly in the closed state, is angled along its longitudinal axis, specifically starting from the rotational axis of the braking element surrounding the vane, toward the conveyor track. The angle can form an angle, wherein the angle is between 90° and 170°, preferably 135°. The term "angle" as used here is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can refer, without limitation, to a deviation along the longitudinal axis of the vane from a straight path. The angle can be a bend. The angle can occur over any radius. A bend can form an angle, particularly to describe the deviation from the straight path.The angle can be designed such that the lateral engagement, particularly of the front end, of the wing into the conveyor track occurs at a steeper angle compared to a non-angled wing. In this way, engagement can be made more easily between two items to be cleaned on the conveyor track that are not objectionable and that follow one another, particularly "butt to butt." If the consecutive items to be cleaned are trays, these typically each have a corner radius. If at least one wing pivots inward, particularly during an emergency, the angle can make it easier for the wing to pivot into the gap created by the corner radii between the trays. In contrast, straight-shaped wing blades may, when pivoting inward, rest against the tray in front, thus severely hindering engagement.

[0054] The vane may have at least one roller on its front side, wherein the roller is rotatable about a rotational axis, wherein the rotational axis is arranged orthogonally to the conveying direction and / or a plane formed by or corresponding to the conveying track. The roller may have a diameter between 3 mm and 12 mm, preferably 5 mm. The roller may extend over at least 50%, 70%, or 90% of the height of the vane. The term "roller" as used herein is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. The term may refer, without limitation, to a mechanical device that is rotatable about a rotational axis. The roller may have a cylindrical shape.The roller can be arranged on the wing in such a way that it represents the first and / or only point of contact when the wing pivots from the open state to the closed state, thus engaging laterally in the conveyor track. This can be particularly true when an item to be cleaned, in particular a tray, is located partly upstream and downstream of the brake. In this case in particular, it can happen that the wing initially rests laterally against the item to be cleaned, in particular the tray, until the item has been conveyed out of the engagement area so that the braking element, in particular the wing, can be fully closed. While the item to be cleaned is being conveyed out of the engagement area, the roller of the wing can rest against the item to be cleaned, in particular the tray. In the case of a tray in particular, the roller can rest against a side edge of the tablet.The items to be cleaned, especially the tray, can roll along the roller as they are conveyed out of the access area, allowing them to be transported away unhindered. In contrast, with a door without rollers, a jam can occur between the side edge of the tray and the outer edge of the door. This would prevent the door from being moved freely through the lock area.

[0055] At least two brake elements can be provided, engaging the conveyor track from opposite sides. The two brake elements can be designed such that they are simultaneously moved from the open state to the closed state in the conveyor track by means of an engagement movement.

[0056] The cleaning system may further comprise at least one dishwasher, in particular a dishwashing machine, for cleaning the items to be cleaned, wherein the transport device is configured to feed the items to be cleaned to the dishwasher.

[0057] The term "dishwasher," also commonly referred to as "cleaning device," as used here, is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a device designed to free items to be cleaned from adhering macroscopic or even microscopic contaminants or to at least partially remove such contaminants, particularly in a cleaning chamber. In addition, a disinfection effect can optionally be exerted.

[0058] The term "dishwasher," as used here, is a broad term to which its usual and common meaning should be attributed, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a cleaning device designed to at least largely remove adhering contaminants from items to be cleaned, in the form of dishes, and / or to sanitize and / or disinfect the dishes, in particular by applying at least one cleaning fluid. The dishes can, in particular, include items to be cleaned that are designed and intended for serving, preparing, or storing food and / or beverages, for example items to be cleaned selected from the group consisting of: plates, cups, bowls, dishes, glasses, pans, pots, trays, cutlery, and catering containers.

[0059] The dishwasher can be selected from the group consisting of: a program dishwasher, a hood dishwasher, a pass-through dishwasher, a conveyor dishwasher.

[0060] The term "program dishwasher" or "program automatic dishwasher," as used here, is a broad term to which its usual and common meaning should be attributed, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a cleaning device in which the items to be cleaned are stored stationary in a cleaning chamber and can be subjected there to at least one cleaning program, which has a defined or definable start and a defined or definable end, and during which the cleaning fluid is applied. For example, the cleaning program can have a predetermined or definable duration.The term "cleaning program" can thus refer to a process in which items to be cleaned are exposed to at least one cleaning fluid, wherein the cleaning program has a defined or definable start and a defined or definable end and / or a defined or definable duration. For example, the cleaning program can comprise several sequential cleaning steps, each of which involves exposure to cleaning fluid, but which differ in at least one parameter. For example, the cleaning program can comprise several sequential cleaning steps with different cleaning fluids.For example, the cleaning program can comprise at least one washing step in which the items to be cleaned are exposed to at least one washing fluid or at least one washing liquid, as well as at least one final rinsing step, in particular downstream of the washing step, in which the items to be cleaned are exposed to at least one final rinsing fluid or at least one final rinsing liquid. The washing step can, for example, take place in circulation mode, using at least one circulation pump, whereas the final rinsing step takes place, for example, by simply applying the final rinsing liquid, without circulation. The cleaning program can optionally comprise one or more further steps, for example at least one drying step downstream of the final rinsing step.The program dishwasher can, for example, have at least one controller, for example the machine controller described in more detail below, which is configured to control the execution of the cleaning program. The automatic program can, for example, be configured to allow a user to select from several possible cleaning programs with different parameters and / or to adjust the operating parameters of the at least one cleaning program.

[0061] The term "hood-type dishwasher," as used herein, is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. The term can, without limitation, refer in particular to a dishwasher as defined above, which has at least one hood. The hood can, in particular, be designed as a part of a housing of the dishwasher, which comprises at least two side walls of the housing and which is movable in a vertical movement. For example, the vertical movement can be configured such that it includes a lower position, which can correspond to the closed state, in which the hood is sealed off from the remaining parts of the housing and / or the cleaning device.Furthermore, the vertical movement can be designed such that it includes an upper position which corresponds to the open state, in which a gap or an opening is created between the hood and the other housing parts, so that a cleaning chamber is accessible. For example, the housing of the cleaning device can be cuboid-shaped, with two side walls, a rear wall, a front side, a roof and optionally a base, whereby the hood can, for example, form at least the two side walls and the front side, and optionally also the rear wall and / or the roof. The hood can, for example, sit on a base and / or a frame of the cleaning device. During the vertical movement from the closed state to the open state, the rear wall can optionally remain stationary, so that the hood moves relative to the rear wall.Optionally, the roof can remain stationary, so that only a hood shell partially enclosing the cleaning chamber on both side walls and the front is moved vertically. Various configurations are possible.

[0062] The term "pass-through dishwasher," as used herein, is a broad term to which its usual and common meaning should be given, as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. The term can refer, without limitation, in particular to a dishwasher as defined above, which has a pass-through mechanism. The pass-through mechanism can be designed such that soiled items to be cleaned in containers, especially cleaning baskets, can be introduced into a cleaning chamber of the pass-through dishwasher via a carrier. The pass-through dishwasher can have a basket feed, which is designed in particular such that one or more cleaning baskets can be actively or passively fed into the cleaning chamber.The pass-through dishwasher can have a basket outlet which is designed in particular such that one or more cleaning baskets can be actively or passively removed from or out of the cleaning chamber.

[0063] The term "conveyor dishwasher," as used here, is a broad term to which its usual and common meaning should be attributed, as understood by a person skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a dishwasher within the meaning of the above definition, which has at least one transport device. In particular, the conveyor dishwasher can have at least one cleaning chamber, but in principle also a plurality of cleaning chambers, for example at least one cleaning tunnel, in which the items to be cleaned and / or one or more items of crockery are subjected to at least one cleaning fluid, in particular by means of at least one application device. The transport device can be configured to transport the items to be cleaned through the cleaning chamber.

[0064] The washing machine can be provided downstream of the braking element, relative to the conveying direction of the conveying element. The conveying element can be selected from the group consisting of: a roller conveyor; a conveyor belt; a plate conveyor; a belt conveyor; and a conveyor chain.

[0065] In a further aspect of the present invention, a fire protection system is proposed. The fire protection system comprises a cleaning system according to one of the preceding claims; a fire protection slide for closing a lock, wherein the cleaning system is designed to transport the cleaning material through the lock by means of the conveyor element, The fire damper is provided downstream of the braking element with respect to the conveying direction of the items to be cleaned by means of the conveying element. The term "fire damper," as used here, is a broad term to which its usual and common meaning should be attributed, as understood by those skilled in the art. The term is not limited to a specific or adapted meaning. The term can, without limitation, refer in particular to a fire-resistant closure element for an opening in a building element. The fire damper can be provided with respect to the conveying track and / or the conveying direction between the dishwasher and the braking element. The lock can be designed as an opening in a wall, in particular a building wall, especially a fire wall.The airlock can, for example, be arranged between a first room in the building, i.e. the dining room, and a second room in the building, i.e. the scullery. The conveyor element can be guided through the airlock, in particular as a continuous conveyor element through the airlock, so that a jointly driven section of the conveyor element is arranged, for example, partly upstream and partly downstream of the airlock. The fire protection slide valve can be designed such that it normally leaves the airlock open so that items to be cleaned can be transported through the airlock by means of the conveyor element. The fire protection slide valve can be designed such that it closes the airlock fireproof in an emergency, in particular to prevent a fire from spreading from one room to another.

[0066] An emergency control system can be designed to close the fire damper with a time delay compared to the braking element in an emergency, in particular to close the fire damper after the braking element in an emergency. In this way in particular it is possible to transport the area of ​​the lock free of items to be cleaned so that the fire damper closes the lock in a fire-safe manner. Since the braking element closes first, no further items to be cleaned can be conveyed downstream of the braking element. In particular the emergency power supply can ensure that the conveying element conveys the items to be cleaned, which are already downstream of the braking element at this point, out of the lock area. The time-delayed closure of the fire damper ensures that this process is completed before the fire damper closes.

[0067] The proposed cleaning system and fire protection system offer numerous advantages over known cleaning systems and fire protection systems.

[0068] In particular, in the event of an emergency, such as a fire, the cleaning system can provide a safe and / or reliable separation between different rooms of a building, in particular a scullery and a dining room. Furthermore, an efficient and / or cost-effective fire protection system can be provided, which in particular provides safe and reliable emergency control. Furthermore, the cleaning system and / or the fire protection system can be easily and effectively cleaned.

[0069] The braking element according to the invention can be used for different tray widths and tray designs. Compared to known retention devices, the braking element according to the invention can further have the advantage of an automatic locking function, which can be activated in particular even in the event of a power failure. Thus, its functionality is maintained even in the event of a power outage.

[0070] The device according to the invention can have a wing-like braking element on each side of the transport device. These two braking elements can, for example, be brought into an open state simultaneously by means of a servomotor, counter to the pretension of a reset element. In the event of an alarm, the servomotor can actively return to its rest position and / or the servomotor can be de-energized. The motor can be designed to be non-self-locking, in particular by means of a gear that can be assigned to the servomotor. In principle, the braking element can therefore be brought into a locked position, i.e., the closed state, by a restoring force, in particular of the reset element. The reset element can be integrated into the servomotor. It is also possible for the reset element to be designed as a separate component.A double version with at least two reset elements may also be possible for reasons of redundancy.

[0071] The shaft that actuates the braking element, and thus the retaining vanes, can be guided through the conveyor level from below. These rotary unions can be easily and reliably sealed if necessary. The rest of the braking element's mechanics can be located entirely below the conveyor level. This means that it does not require any additional installation space beyond that required by the conveyor system. The overall length of the conveyor system can also be kept to a minimum.

[0072] Items to be cleaned, in particular a tray, that are located in the area of ​​the braking element during a closing movement, and therefore an engagement movement, of the braking element can continue to be transported, in particular because the braking element, especially the one designed as a wing, cannot engage the side of a tray. The conveyor system can continue to run for a certain time after an alarm has occurred thanks to an emergency power supply. In this way in particular, the critical area within the fire damper or the lock can be cleared of items to be cleaned, and therefore tablets. The lateral engagement allows a tray that is located within the retaining device, in particular partially upstream and downstream, during the closing process to be properly transported away. Tipping and / or shifting of items to be cleaned and, in particular, dishes falling off the tray, does not occur.When the conveyor track is clear, the braking elements can be fully inserted into the transport path, i.e., pivoted in. A subsequent tray can thus be stopped by its front end directly hitting the two retaining elements. The conveyor system can slide beneath the held tray as long as the emergency power supply is still active.

[0073] The items to be cleaned, especially trays, are held back in their normal conveying position, preventing subsequent trays from being pushed over one another. Tray deflection from the horizontal position can be prevented, with the advantage that the retention device can be installed within 100 mm of the fire protection system's lock.

[0074] The alarm can be triggered by a signal exchange between an external fire protection system and the conveyor system. As soon as a signal is present, the actuator can be de-energized, and the restraint function can be triggered. If the actuator's power supply fails, the mechanism can function independently due to the preload of the reset element. Resetting and / or release of the transport path then occurs again with the regular power supply, for example, after a false alarm has been acknowledged. In this respect, it can be determined that different tray widths and / or tray designs, e.g., trapezoidal trays, can be detected with the side wings of the braking element.The cleaning system also has the advantage that a tray located within the area of ​​the retention device at the time of activation, i.e., during the closing process of the braking element, can continue to travel, and the retention device only engages before the following tray, blocking the following items to be cleaned. The tray located in the retention device during the closing process can continue to travel downstream in the desired position, preventing the transported items from tipping and / or shifting, or, for example, falling off the system.

[0075] The following tray can then be held back in its normal conveying position, preventing the trays from being pushed over one another. Deflection of the tray from the horizontal position can be avoided. This can have the advantage that the retention device can be installed close to the fire damper, in particular up to 100 mm in front of the fire damper. As soon as the actuator is not actively operated, in particular when de-energized, the function of the passive retention element can come into play. Therefore, if the actuator's power supply fails, the mechanism also closes automatically thanks to the integrated reset element. Short description of the characters

[0076] Further details and features will become apparent from the following description of exemplary embodiments, particularly in conjunction with the subclaims. The respective features can be implemented individually or in combination with one another. The invention is not limited to the exemplary embodiments. The exemplary embodiments are illustrated schematically in the figures. Identical reference numerals in the individual figures designate identical or functionally identical elements, or elements that correspond to one another in terms of their functions.

[0077] In detail: Figure 1 shows a perspective view of a cleaning system and a fire protection system with an open braking element; Figure 2 shows a perspective view of the cleaning system and the fire protection system with a closed braking element; Figure 3 shows a plan view of the cleaning system and the fire protection system with an open braking element; Figure 4 shows a plan view of the cleaning system and the fire protection system with a closed braking element; and Figures 5a-5c show a detailed representation of the braking element. Description of the embodiments

[0078] Figure 1 shows an exemplary embodiment of a cleaning system 110 and a fire protection system 122. The fire protection system 122 includes a fire damper 124 for closing a lock 126. The lock 126 can be provided in a fire wall 162. The fire wall 162 can separate a dining room 164 from a scullery 166.

[0079] The fire protection system 122 further comprises a cleaning system 110. The cleaning system 110 comprises a transport device 112 for conveying cleaning material 114. According to Figure 1 The item 114 to be cleaned is a tray, with additional items 114 to be cleaned, namely plates, glasses, and / or cutlery, arranged on the tray. In principle, however, other items 114 to be cleaned are also possible.

[0080] The transport device 112 comprises: at least one driven conveyor element 116 for conveying the cleaning material 114 along a conveyor track 176, at least one braking element 118 for stopping the conveyance of the cleaning material 114 in a closed state of the braking element 118, at least one emergency control 120 which is configured to bring the braking element 118 into the closed state in an emergency, wherein the braking element 118 is configured to block the conveyance of the items to be cleaned 114 in the closed state by a wing 132 extending laterally into the conveyor track 176. A first section 170 of the transport device 112 can be provided in the dining room 164. The tray feed 168 can be located there. A second section 174 of the transport device 112 can be provided in the dishwashing area. The tray removal 172 can be located there.

[0081] The cleaning system 110 is configured to transport the cleaning material 114 through the lock 126 by means of the conveying element 116; in particular, for this purpose, the conveying element 116 is continuous and / or uninterrupted in the area of ​​the lock 126.

[0082] The conveyor element 116 can be provided on a conveyor table 140 of the transport device 112. The conveyor table 140 can have a covering, thus a belt body 142. Furthermore, the conveyor table 140 can have a guide 144 for the cleaning material 114, in particular a guide 144 that defines the conveyor track 176.

[0083] The fire protection slide 124 can be provided downstream of the braking element 118 with respect to a conveying direction 128 of the cleaning material 114 by means of the conveying element 116. The emergency control 120 of the transport device 112 can be designed such that it can be connected to the external fire protection system 122. For this purpose, the emergency control 120 can have an interface that receives a control signal from the fire protection system 122. Alternatively, the emergency control 120 can also be partially or fully integrated into the fire protection system 122.

[0084] The emergency control 120 can be configured to close the fire damper 124 in an emergency with a time delay relative to the braking element 118, in particular to close the fire damper 124 after the braking element 118 in an emergency. In this way, it may be possible to first convey the area of ​​the lock 126 free of cleaning material 114 before the fire damper 124 closes.

[0085] The cleaning system 110 can further comprise at least one dishwasher 180, in particular a dishwashing machine, for cleaning the items to be cleaned 114, wherein the transport device 112 is configured to feed the items to be cleaned 114 to the dishwasher 180. The dishwasher 180 can be selected from the group consisting of: a program dishwasher, a hood-type dishwasher, a pass-through dishwasher, and a conveyor dishwasher.

[0086] The fire protection slide 124 can be provided with respect to the conveyor track 176 between the dishwasher 180 and the braking element 118, the dishwasher 180 is in Figure 1 not shown. The dishwasher 180 can be provided downstream of the braking element 118, relative to a conveying direction 128 of the conveying element 116.

[0087] The transport device 112 can comprise an emergency power supply unit 130, wherein the emergency power supply unit 130 is configured to supply a drive of the conveying element 116 with power in an emergency, in particular such that when the braking element 118 is in the closed state, a region of the conveying track 176, in particular the region of the conveying track 176 associated with the fire damper 124, can be conveyed downstream of the braking element 118 free of items to be cleaned 114. The transport device 112 is configured such that items to be cleaned 114, which are located partially downstream and partially upstream of the braking element 118 in a conveying direction 128 during an engagement movement of the braking element 118 from the open state to the closed state, are conveyed completely downstream of the braking element 118.The transport device 112 can be configured such that the conveying element 116 can be driven independently of the braking element 118, in particular also in the closed state of the braking element 118.

[0088] In Figure 1 The braking element 118 is shown in the open state. The item to be cleaned 114, in particular a tray, is located partially upstream and partially downstream of the braking element 118 in the conveying direction 128. Figure 2 shows the exemplary embodiment of the cleaning system 110 and the fire protection system 122 according to Figure 1 with the braking element 118 in the closed state. The cleaning material 114 rests against the braking element 118. Downstream of the braking element 118, there is no cleaning material 114 in the conveyor track 176, thus the area of ​​the lock 124 in particular is free of cleaning material 114.

[0089] The braking element 118 can have at least one wing 132, wherein at least a part of the wing 132 is pivotable about a rotation axis 134 into, in particular during the engagement movement 178, and out of the conveyor track 176, in particular so that at least this part of the wing 132 can be brought into contact with the cleaning material 114. In this case, the engagement movement 178 can lie at least partially or completely in a plane parallel to the conveyor track 176 and / or the conveyor element 116. As can be seen from the Figure 2As can be seen, the braking element 118 can be designed such that, in the closed state, it blocks the cleaning item 114 by engaging the cleaning item 114, in particular by engaging an end face of the cleaning item 114, specifically the tray. As shown in the exemplary embodiment of the cleaning system 110 and the fire protection system 122, at least or exactly two braking elements 118 can be provided, which engage in the conveyor track 176 from opposite sides.

[0090] The transport device 112 can further comprise a servomotor controller 156, wherein the servomotor 136 is operated by means of the servomotor controller 156. The servomotor controller 156 normally operates the servomotor 136 such that the braking element 118 is in the open state, and in particular, and in an emergency, operates the servomotor 136 such that the braking element 118 is in the closed state. The servomotor controller 156 can comprise an interface configured to receive a control signal from the emergency controller 120. Alternatively, the servomotor controller 156 can be partially or fully integrated into the emergency controller 120.

[0091] To operate the actuator 136 such that the braking element 118 is in the closed state in an emergency, the energy supply to the actuator 136 can be interrupted or the actuator 136 can actively bring the braking element 118 into the closed state.

[0092] The conveyor track 176 can be arranged above the conveyor element 116 and the braking element 118 can be configured to act, in the closed state, on items to be cleaned 114 above the conveyor element 116, in particular on at least one tray conveyed by the conveyor element 116.

[0093] The conveyor element 116 may be selected from the group consisting of: a roller conveyor; a conveyor belt; a plate conveyor; a belt conveyor 158; a conveyor chain. According to the Figures 1 and 2 The conveyor element 116 has two conveyor belts 158, which are guided by a belt guide 160. (see also Figure 5b or 5c ).

[0094] The Figure 3 shows a plan view of the exemplary embodiment of the cleaning system 110 and the fire protection system 122 according to Figure 1 . The Figure 4shows a plan view of the exemplary embodiment of the cleaning system 110 and the fire protection system 122 according to Figure 2 .

[0095] In the Figures 5a to 5c the braking element 118 is illustrated in detail. The braking element 118 may comprise at least one servomotor 136 which is configured to bring the braking element 118 from the closed state into an open state during operation, wherein the braking element 118 does not block the conveyance of the cleaning material 114 in the open state, and at least one passive return element 138 which is configured to bring the braking element 118 from the open state into the closed state.

[0096] The return element 138 can exert a preload on the brake element 118, which drives the brake element 118 from the open state to the closed state, specifically in an engagement movement 178, wherein the actuator motor 136 is designed such that, during operation, it overcomes the preload and holds the brake element 118 in the open state. The actuator motor 136 can be designed such that, in the event of an interrupted power supply to the actuator motor 136, it does not overcome the preload of the return element 138, in particular so that the return element 138 brings the brake element 118 into the closed state. As shown in Figure 5b As shown, the return element 138 can be integrated into the actuator 136. The return element 138 can be selected from the group consisting of: a spring element; a system with counterweights.

[0097] In particular, to ensure redundancy, at least two return elements 138 can be provided, each of which is designed to bring the braking element 118 from the open state into the closed state (not shown).

[0098] The actuator 136 can be a free-running actuator 136, in particular a non-self-locking electric motor. The actuator 136 can be arranged below the conveyor track 176 in a conveyor table 140, in particular under a cover, specifically a belt body 142.

[0099] The actuator 136 can exert a force on the braking element 118 via a shaft 146 of the braking element 118. The shaft 146 can extend from below out of the conveyor table 140, in particular the casing, thus the belt body 142, and engage the braking element 118. The force flow between the actuator 136 and the at least one braking element 118 can occur via at least one rotary plate 148 and at least one pull rod 150, which engage the shaft 146. A rotary arm 152 can also be provided between the pull rod 150 and the shaft 146. The actuator 136 can cause the rotary plate 148 to rotate. The rotation of the rotary plate 148 can cause a pivoting movement of the braking element 118 by means of the pull rod 150, the rotary arm 152, and the shaft 146. This pivoting movement can take place in opposite directions when the braking elements 118 are opposite one another.

[0100] The actuator 136 can be designed to operate a plurality of brake elements 118 simultaneously. Alternatively or additionally, the return element 138 can also be designed to operate the plurality of brake elements 118 simultaneously. If a plurality of brake elements 118 are provided, the force flow from the actuator 136 can be transmitted to the respective brake elements 118 via a common rotary plate 148 and a plurality of pull rods, with at least one pull rod being associated with each brake element 118.

[0101] The wing 132 of the braking element 118 can preferably be formed in an angled shape, in particular such that the wing has the shape of a shallow V in a plan view. The wing 132 can have an angle along its longitudinal axis. The angle can be designed such that the lateral engagement of the braking element, in particular of the wing, especially its front side, occurs at a steeper angle to the conveying direction than with a wing that does not have an angle. The angle can be designed such that the wing, in the open state, is angled from the rotational axis 134 of the wing 132 towards the conveying track 176. The angle can be designed inwards towards the conveying track 176 in a plan view of the wing. Figure 5c describes the angulation of an angle 184. The value of the angle 184 can be between 90 ° and 170 °, preferably 135 °.

[0102] Furthermore, the wing 132 can have at least one roller 182, in particular a vertically mounted roller 182. The axis of rotation of the roller 182 can be arranged vertically and / or extend or lie parallel to a vertical axis. The roller 182 can be attached to an end face of the wing 132, specifically to the end face of the wing 132 that can be pivoted into the conveyor track 176. The roller 182 can be positioned on the end face in such a way that, when the wing 132 pivots into the conveyor track 176, the roller 182 is the first and / or the only point of contact between the wing 132 and the items to be cleaned 114, in particular for items to be cleaned 114 that are located partially upstream and downstream of the braking element 118 on the conveyor track 176. The roller 182 may have an axis of rotation which is, for example, orthogonal to the conveying direction 128 and / or a plane formed by the conveying track 176.The rotational axis of the roller 182 can be arranged such that, when it is in lateral contact with the item 114 to be cleaned, the roller 182 can roll around its rotational axis, particularly with the item 114 to be cleaned that is located partially upstream and downstream of the braking element 118 on the conveyor track 176. The rotational axis can be arranged such that it does not block the conveyance of the item 114 to be cleaned that is partially upstream and downstream of the braking element 118. The roller can have a diameter between 3 mm and 12 mm, preferably 5 mm. List of reference symbols

[0103] 110 Cleaning system 112 Transport device 114 Items to be cleaned 116 Conveyor element 118 Braking element 120 Emergency control 122 Fire protection system 124 Fire damper 126 Airlock 128 Conveyor direction 130 Emergency power supply unit 132 Wing 134 Rotary axis 136 Actuator 138 Passive return element 140 Conveyor table 142 Belt body 144 Guide 146 Shaft 148 Turntable 150 Pull rod 152 Rotating arm 156 Actuator control 158 Conveyor belt 160 Belt guide 162 Fire protection wall 164 Dining room 166 Scullery 168 Tray infeed 170 Section of the transport device in the dining room 172 Tray removal 174 Section of the transport device in the scullery 176Conveyor track 178Intervention movement 180Dishwasher 182Roller 184Angle

Claims

1. Cleaning installation (110), comprising a transport device (112) for conveying washware (114), wherein the transport device (112) comprises: - at least one driven conveying element (116) for transporting the washware (114) along a conveying track, - at least one brake element (118) for stopping the transportation of the washware (114) in a closed state of the brake element (118), - at least one emergency control means (120), which is designed to move the brake element (118) to the closed state in the event of an emergency, wherein the brake element (118) is configured to block conveying of the washware (114) by lateral intervention in the conveying track in the closed state, wherein the transport device (112) is configured in such a way that washware (114) that is located partly downstream and partly upstream of the brake element (118) in a conveying direction (128) during an intervention movement of the brake element (118) from the open state to the closed state is entirely conveyed downstream of the brake element (118).

2. Cleaning installation (110) according to the preceding claim, wherein the emergency control means (120) is configured in such a way that it can be connected to an external fire protection system (122).

3. Cleaning installation (110) according to either of the preceding claims, wherein the transport device (112) comprises an emergency power supply unit (130), wherein the emergency power supply unit (130) is designed to supply power to a drive of the conveying element (116) in the event of an emergency, so that a region of the conveying track downstream of the brake element (118) can be conveyed in a manner free of washware (114) in a closed state of the brake element (118).

4. Cleaning installation (110) according to any of the preceding claims, wherein the transport device (112) is designed in such a way that the conveying element (116) can be driven independently of the brake element (118).

5. Cleaning installation (110) according to any of the preceding claims, wherein the brake element (118) comprises - at least one actuating motor (136), which is designed to move the brake element (118) from the closed state to an open state during operation, wherein the brake element (118) does not block conveying of the washware (114) in the open state, and - at least one passive return element (138), which is designed to move the brake element (118) from the open state to the closed state.

6. Cleaning installation (110) according to the preceding claim, wherein the return element (138) exerts a preload on the brake element (118), the preload driving the brake element (118) from the open state to the closed state, wherein the actuating motor (136) is designed in such a way that it overcomes the preload and keeps the brake element (118) in the open state during operation.

7. Cleaning installation (110) according to either of the two preceding claims, wherein the actuating motor (136) is arranged below the conveying track in a conveying table (140).

8. Cleaning installation (110) according to any of the three preceding claims, wherein the return element (138) is selected from the group consisting of: a spring element and a system with counterweights.

9. Cleaning installation (110) according to any of the four preceding claims, wherein the actuating motor (136) is configured in such a way that it does not overcome the preload of the return element (138) if the supply of power to the actuating motor (136) is interrupted, so that the return element (138) moves the brake element (118) to the closed state.

10. Cleaning installation (110) according to any of the five preceding claims, wherein the transport device (112) further has an actuating motor control means (156), wherein the actuating motor (136) is operated by means of the actuating motor control means (156), wherein the actuating motor control means (156) normally operates the actuating motor (136) in such a way that the brake element (118) is in the open state and in the event of an emergency operates the actuating motor (136) in such a way that the brake element (118) is in the closed state.

11. Cleaning installation (110) according to any of the preceding claims, wherein the brake element (118) has at least one blade (130), wherein at least a portion of the blade (130) can be pivoted into and out of the conveying track about a rotation axis (134), so that at least this portion of the blade (130) can be brought into contact with the washware (114).

12. Cleaning installation (110) according to any of the preceding claims, wherein the cleaning installation (110) further has a dishwasher (180) for cleaning the washware (114), wherein the transport device (112) is designed to feed the washware (114) to the dishwasher (180).

13. Fire protection system (122), comprising - a cleaning installation (110) according to any of the preceding claims; - a fire protection slide (124) for closing a lock (126), wherein the cleaning installation (110) is designed to transport the washware (114) through the lock (126) by means of the conveying element (116), wherein the fire protection slide (124) is provided downstream of the brake element (118) with respect to a conveying direction of the washware (114) by means of the conveying element (116).

14. Fire protection system (122) according to the preceding claim, wherein an emergency control means (120) is configured to close the fire protection slide (124) with a time delay in relation to the brake element (118) in the event of an emergency.

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