Vehicle gate arrangement with first and second shutters, system comprising the arrangement, and method of operation

Abstract

To provide a vehicle gate arrangement with first and second shutters, a system comprising the arrangement, and a method of operation.SOLUTION: A vehicle gate arrangement includes: a space (51) for accommodating vehicles (201, 301, 401, 501); a first shutter (52) for separating the space (51) and a first region (11) from each other; and a second shutter (53) for separating the space (51) and a second region (12) from each other, wherein, both the first shutter (52) and the second shutter (53) are each actuatable between an open position allowing passage of the vehicle (201, 301, 401, 501) therethrough and a blocking position restricting passage of the vehicle (201, 301, 401, 501) therethrough, wherein the first shutter (52) and the second shutter (53) are coupled to each other for synchronous movement, and wherein the first shutter (52) and / or the second shutter (53) is / are always in the respective blocking position.SELECTED DRAWING: Figure 5C

Description

[Technical Field]

[0001] The present invention relates to a storage system comprising a first area and a second area, the first area being connected to the second area by a vehicle gate arrangement comprising a first shutter and a second shutter for regulating the passage of vehicles between the first and second areas for the passage of remotely operated vehicles.

[0002] In particular, the first area can be a storage area and the second area can be a service area operated by a human operator. [Background technology]

[0003] Background and Prior Art FIG. 1 discloses a prior art automated storage and retrieval system 1 with a framework structure 100, and FIGS. 2, 3 and 4A disclose three different prior art container handling vehicles 201, 301, 401 suitable for operating on such a system 1.

[0004] The framework structure 100 comprises upright members 102 and a storage volume comprising storage columns 105 arranged in rows between the upright members 102. In these storage columns 105, storage containers 106, also known as bins, are stacked on top of each other to form stacks 107. The members 102 may typically be made of metal, for example extruded aluminum profiles.

[0005] The framework structure 100 of the automated storage and retrieval system 1 comprises a rail system 108 arranged across the top of the framework structure 100, on which a plurality of container handling vehicles 201, 301, 401 can be operated to raise storage containers 106 from the storage columns 105, lower the storage containers 106 into the storage columns, and transport the storage containers 106 above the storage columns 105. The rail system 108 comprises a first set of parallel rails 110 arranged to guide the movement of the container handling vehicles 201, 301, 401 in a first direction X across the top of the framework structure 100, and a second set of parallel rails 111 arranged perpendicular to the first set of rails 110 for guiding the movement of the container handling vehicles 201, 301, 401 in a second direction Y perpendicular to the first direction X. The containers 106 stored in the columns 105 are accessed by the container handling vehicles 201, 301, 401 through access openings 112 in the rail system 108. The container handling vehicles 201, 301, 401 can move laterally above the storage columns 105, i.e. in a plane parallel to the horizontal XY plane.

[0006] Upright members 102 of framework structure 100 are used to guide the storage containers during raising and lowering of the containers from column 105. Stacks 107 of containers 106 are typically freestanding.

[0007] Each prior art container handling vehicle 201, 301, 401 comprises a body 201a, 301a, 401a and first and second sets of wheels 201b, 201c, 301b, 301c, 401b, 401c that enable lateral movement of the container handling vehicle 201, 301, 401 in the X and Y directions, respectively. Two wheels of each set are fully visible in Figures 2, 3 and 4A. The first set of wheels 201b, 301b, 401b are arranged to engage two adjacent rails of the first set of rails 110, and the second set of wheels 201c, 301c, 401c are arranged to engage two adjacent rails of the second set of rails 111. At least one of the sets of wheels 201b, 201c, 301b, 301c, 401b, 401c can be raised or lowered so that the first set of wheels 201b, 301b, 401b and / or the second set of wheels 201c, 301c, 401c can be engaged with the respective set of rails 110, 111 at any one time.

[0008] Each prior art container handling vehicle 201, 301, 401 also includes a lifting device for vertically transporting the storage containers 106, e.g., for raising the storage containers 106 from the storage columns and lowering the storage containers 106 into the storage columns 105. The lifting device includes one or more gripping / engaging devices adapted to engage with the storage containers 106, which can be lowered from the vehicle 201, 301, 401 so that the position of the gripping / engaging devices relative to the vehicle 201, 301, 401 can be adjusted in a third direction Z, which is orthogonal to the first direction X and the second direction Y. Parts of the gripping devices of the container handling vehicles 301, 401 are shown in Figures 3 and 4A, designated by reference numerals 304, 404. The gripping devices of the container handling device 201 are located within the vehicle body 201a in Figure 2 and are therefore not shown. The lifting device may further include a lifting frame 27 suspended from the lifting bands 25. The lifting bands 25 may provide power and communication between the container handling vehicle and the lifting frame 27. The lifting frame 27 may include gripping engagement devices 26 for connecting to gripping recesses in the storage containers 106.

[0009] Conventionally, and for purposes of this application, Z=1 identifies the top layer available for storage containers below rails 110, 111, i.e., the layer immediately below rail system 108, Z=2 identifies the second layer below rail system 108, and Z=3 identifies the third layer. In the exemplary prior art disclosed in FIG. 1, Z=8 identifies the bottom layer of storage containers. Similarly, X=1...n and Y=1...n identify the location of each storage column 105 in the horizontal plane. Thus, by way of example, using the Cartesian coordinate system X, Y, Z shown in FIG. 1, the storage container identified as 106' in FIG. 1 can be said to occupy storage location X=17, Y=1, Z=6. Container handling vehicles 201, 301, 401 can be said to be traveling at layer Z=0, and each storage column 105 can be identified by its X and Y coordinates. Thus, the storage containers shown in FIG. 1 that extend above the rail system 108 are also said to be arranged in layer Z=0.

[0010] The storage volume of the framework structure 100 is often referred to as a grid 104, and the possible storage locations within this grid are referred to as storage cells. Each storage column may be identified by an X and Y position, and each storage cell may be identified by an X, Y, and Z container number.

[0011] Each prior art container handling vehicle 201, 301, 401 comprises a storage compartment or space for receiving and storing the storage containers 106 as they are transported over the rail system 108. The storage space may comprise a cavity arranged internally within the body 201 a, 401 a, as shown in Figures 2 and 4A and as described, for example, in WO 2015 / 193278 and WO 2019 / 206487, the contents of which are incorporated herein by reference.

[0012] Figure 3 shows an alternative configuration of a container handling vehicle 301 having a cantilevered structure. Such a vehicle is described in detail, for example, in Norwegian Patent No. 317366, the contents of which are also incorporated herein by reference.

[0013] 2 may have a footprint covering an area having dimensions in the X and Y directions approximately equal to the lateral extent of the storage column 105, for example, as described in WO 2015 / 193278, the contents of which are incorporated herein by reference. As used herein, the term "lateral" may mean "horizontal."

[0014] Alternatively, the cavity container handling vehicle 401 may have a footprint larger than the lateral area defined by the storage columns 105 as shown in Figures 1 and 4, as disclosed, for example, in WO 2014 / 090684 or WO 2019 / 206487.

[0015] The rail system 108 typically includes rails with grooves along which vehicle wheels travel. Alternatively, the rails may include upwardly protruding elements, and the vehicle wheels may include flanges to prevent derailment. These grooves and upwardly protruding elements are collectively known as tracks. Each rail may include a single track, or each rail 110, 111 may include two parallel tracks. In other rail systems 108, each rail may include one track in one direction (e.g., the X direction) and two tracks in the other perpendicular direction (e.g., the Y direction). Each rail 110, 111 may also include two track members fastened together, each providing one of the pair of tracks provided by each rail.

[0016] WO 2018 / 146304, the contents of which are incorporated herein by reference, shows a typical configuration of a rail system 108 comprising rails and parallel tracks in both the X and Y directions.

[0017] In the framework structure 100, the majority of the columns 105 are storage columns 105, i.e., columns 105 in which storage containers 106 are stored in stacks 107. However, some columns 105 may have other purposes. In FIG. 1 , columns 119 and 120 are dedicated columns used by container handling vehicles 201, 301, 401 to drop off and / or pick up storage containers 106 so that they can be transported to access stations (not shown) that can access the storage containers 106 from outside the framework structure 100 or transfer the storage containers 106 to the outside or inside of the framework structure 100. In the art, such locations are commonly referred to as "ports," and the columns in which the ports are located are sometimes referred to as "port columns" 119, 120. Transport to the access stations may be in any direction, i.e., horizontal, inclined, and / or vertical. For example, storage containers 106 may be placed in random or dedicated columns 105 within the framework structure 100 and then picked up by any container handling vehicle and transported to port columns 119, 120 for further transport to an access station. Transport from the port to the access station may require movement along a variety of different directions by means such as delivery vehicles, dollies, or other transport lines. It should be noted that the term "inclined" refers to transport of storage containers 106 with a general transport direction somewhere between horizontal and vertical.

[0018] In Figure 1, the first port column 119 may, for example, be a dedicated drop-off port column where container handling vehicles 201, 301, 401 can drop off storage containers 106 to be transported to an access station or transfer station, and the second port column 120 may be a dedicated pick-up port column where container handling vehicles 201, 301, 401 can pick up transported storage containers 106 from an access station or transfer station.

[0019] The access station may typically be a picking station or a stocking station where product items are removed from or positioned within the storage containers 106. At the picking or stocking station, the storage containers 106 are typically not removed from the automated storage and retrieval system 1 but are returned to the framework structure 100 once accessed. Ports may also be used to transfer storage containers to another storage facility (e.g., to another framework structure or to another automated storage and retrieval system), to a transport vehicle (e.g., a train or truck), or to a production facility.

[0020] A conveyor system comprising conveyors is typically used to transport storage containers between the port columns 119, 120 and the access stations.

[0021] If the port columns 119, 120 and the access stations are located at different levels, the conveyor system may include a lifting device with a vertical component for vertically transporting the storage containers 106 between the port columns 119, 120 and the access stations.

[0022] A conveyor system may be arranged to transfer the storage containers 106 between the different framework structures, for example as described in WO 2014 / 075937, the contents of which are incorporated herein by reference.

[0023] The storage system may also use port columns 119, 120 to transfer storage containers between rail system 108 at the upper end of framework structure 100 and container transfer vehicles arranged below the lower ends of the port columns. Such storage systems and suitable container transfer vehicles are disclosed in WO 2019 / 238694 and WO 2019 / 238697, the contents of which are incorporated herein by reference.

[0024] A potential drawback of using a container transfer vehicle to retrieve / deliver storage containers from / to the lower end of a port column is the time dependency between the container transfer vehicle and the container handling vehicle used to retrieve / deliver the storage containers through the port column.

[0025] 1 is to be accessed, one of the container handling vehicles 201, 301, 401 is directed to retrieve the target storage container 106 from its position and transport it to the drop-off port column 119. This operation involves moving the container handling vehicle 201, 301, 401 to a position above the storage column 105 where the target storage container 106 is positioned, using a lifting device (not shown) of the container handling vehicle 201, 301, 401 to retrieve the storage container 106 from the storage column 105, and transporting the storage container 106 to the drop-off port column 119. If the target storage container 106 is located deep within the stack 107, i.e., if one or more other storage containers 106 are positioned above the target storage container 106, the operation also involves temporarily moving the storage container positioned above before lifting the target storage container 106 from the storage column 105. This step, sometimes referred to in the art as "digging," may be performed by the same container handling vehicle that is subsequently used to transport the target storage container to the drop-off port column 119, or by one or more other cooperating container handling vehicles. Alternatively or additionally, the automated storage and retrieval system 1 may have container handling vehicles 201, 301, 401 dedicated to the task of temporarily removing the storage container 106 from the storage column 105. Once the target storage container 106 has been removed from the storage column 105, the temporarily removed storage container 106 may be repositioned in the original storage column 105. However, the removed storage container 106 may alternatively be relocated to another storage column 105.

[0026] When a storage container 106 is to be stored in one of the columns 105, one of the container handling vehicles 201, 301, 401 is directed to pick up the storage container 106 from the pickup port column 120 and transport the storage container 106 to a position above the storage column 105 where the storage container is to be stored. After any storage container 106 positioned at or above the target position in the stack 107 is removed, the container handling vehicle 201, 301, 401 positions the storage container 106 in the desired position. The removed storage container 106 may then be lowered back into the original storage column 105 or may be relocated to another storage column 105.

[0027] To monitor and control the automated storage and retrieval system 1, for example, to monitor and control the location of each storage container 106 within the framework structure 100, the contents of each storage container 106, and the movements of the container handling vehicles 201, 301, 401 so that the container handling vehicles 201, 301, 401 can deliver the desired storage containers 106 to the desired locations at the desired times without colliding with each other, the automated storage and retrieval system 1 includes a control system 500 that is typically computerized and typically includes a database for tracking the storage containers 106.

[0028] In the event of a container handling vehicle breakdown, today's solutions typically involve a door or shutter that slides upward or to the side between the storage area and a service area to allow vehicles to pass through. The only safety measure is that the door must close within three minutes. If the door is not closed within this time window, the system shuts down. The problem is that when the door or shutter is open, personnel could climb unimpeded from the service area through the door into the storage area where the container handling vehicle operates. Another potential problem is that, without an additional safety barrier, a robot could move through the robotic door during the three minutes the door is open.

[0029] One object of the present invention is to overcome at least some of the drawbacks associated with prior art solutions.

[0030] In particular, it is an object of the present invention to provide a solution for the controlled passage of vehicles between a first area on one side of a gate array and a second area on a second side of the gate array without causing an accidental shutdown of the storage system, minimizing the risk of injury to the operator. [Prior art documents] [Patent documents]

[0031] [Patent Document 1] International Publication No. 2015 / 193278 [Patent Document 2] International Publication No. 2019 / 206487 Summary of the Invention [Means for solving the problem]

[0032] Summary of the Invention The present invention is set forth and characterized in the independent claims, while the dependent claims describe further features of the invention.

[0033] The present invention provides a safe system and method for transporting disabled vehicles between a first area where multiple remotely operated automated vehicles operate and a second area operated by a human operator. This is accomplished by providing a vehicle gate arrangement that ensures that at least one of a first shutter facing the first area and / or a second shutter facing the second area is always in a blocked position. In all embodiments, the first shutter only moves when the second shutter moves, i.e., the first shutter is a slave to the second shutter. Furthermore, in all embodiments, the first shutter and the second shutter move in opposite directions.

[0034] A storage system is described, the storage system comprising: a first region comprising a framework structure comprising upright members and a two-dimensional first rail system arranged across a top of the framework structure, the first rail system comprising a first set of parallel rails arranged to guide movement of vehicles in a first direction X across the top of the framework structure and a second set of parallel rails arranged perpendicular to the first set of rails to guide movement of vehicles in a second direction Y across the top of the framework structure that is perpendicular to the first direction, the first and second sets of parallel rails dividing the first rail system into a plurality of access openings in the first rail system for allowing raising and lowering of storage containers between a position above the first rail system and a position below the first rail system; a vehicle operable on a first rail system, the vehicle comprising a first set of wheels for driving in a first direction X and a second set of wheels for driving in a second direction Y; a second area comprising a second rail system; a vehicle gate arrangement for controlling the passage of vehicles between the first area and the second area via the connecting rail system; Equipped with Vehicle gate arrangement: a space for accommodating a vehicle; a first shutter for separating the space from the first area; a second shutter for separating the space from the second region; Equipped with Both the first shutter and the second shutter each have: an open position allowing the passage of vehicles therethrough; - Blocking positions that restrict the passage of vehicles through them; and The first shutter and the second shutter are coupled to each other for synchronous movement, whereby one shutter moves in one direction relative to the first opening and the other shutter moves in the opposite direction relative to the second opening, and the first shutter and / or the second shutter are always in their respective blocking positions.

[0035] That is, at least one of the first shutter and the second shutter is always in the blocking position. In other words, both the first shutter and the second shutter cannot be in the open position at the same time. The first shutter can be configured to allow or prevent the passage of a vehicle toward a first area through the first through-opening of the vehicle gate arrangement. Similarly, the second shutter can be configured to allow or prevent the passage of a vehicle toward a second area through the second through-opening of the vehicle gate arrangement. Depending on the design of the first and second shutters relative to the first and second through-openings of the vehicle gate arrangement, the shutters allow or prevent passage, and the first and second shutters are normally in the blocking position. Typically, the first and second shutters are in the open position only when they reach the end of their travel. At all other positions between the end of their travel and the opposite end of their travel, the first and second shutters are in the blocking position.

[0036] The idea is to provide a vehicle gate arrangement in which two shutters or locked gates form a space between them and the shutters are mechanically linked to each other in an arrangement such that when one shutter moves, the other door moves simultaneously / synchronously in the opposite direction. Furthermore, the mechanical link between the shutters is such that when one of the shutters is in the open position, the other shutter must be in a blocked position for safety reasons to prevent a vehicle or operator from accidentally moving between the first and second zones (and between the second and first zones). In operation, when one of the shutters is moved from the blocked position to the open position, the other shutter automatically follows the movement in the opposite direction.

[0037] The vehicle may be a container handling vehicle with a container lifting device for lifting a storage container from above, or may be a container handling vehicle capable of supporting a storage container from below, or may be a maintenance vehicle for rescuing and / or inspecting a malfunctioning container handling vehicle.

[0038] The second rail system may have a rail system similar to the first rail system, i.e., the second rail system may comprise a first set of parallel rails arranged to guide movement of vehicles in a first direction X across the top of the frame structure, and a second set of parallel rails arranged perpendicular to the first set of rails to guide movement of vehicles in a second direction Y across the top of the frame structure that is perpendicular to the first direction X, the first and second sets of parallel rails dividing the first rail system into a plurality of access openings in the second rail system.

[0039] The first area can be a storage area, and the second area can be a service area. In the storage area, a large number of remotely operated vehicles operate, and this area is restricted to manual operators unless the storage system is completely shut down. In the service area, human operators work to, for example, repair broken down vehicles.

[0040] The top surfaces of the first rail system, the second rail system, and the connecting rail system may be flush with one another, i.e., the top surfaces of the first rail system, the second rail system, and the connecting rail system may be at the same height.

[0041] The connecting rail system may form part of the first rail system. In other words, the first rail system may comprise the connecting rail system. Alternatively, the connecting rail system may form part of the second rail system. In either case, the vehicle gate arrangement may be fastened or secured to the connecting rail system.

[0042] In yet another alternative, the connecting rail system may be a dedicated rail system and may form part of a vehicle gate array, in which case the vehicle gate array may be connected to the first and / or second rail systems together with the connecting rail system.

[0043] At least a portion of the first and second shutters may move vertically between the open and blocked positions. That is, the movement of the first and second shutters may have a vertical component. This may be achieved in a variety of ways, for example, by purely vertical movement, in which the first and second shutters move only vertically, or by partially vertical and tilted or horizontal movement.

[0044] The first and second shutters may be counterbalanced. For effective counterbalancing, the first and second shutters preferably have the same or substantially the same weight so that the force required to lift or lower the part is minimized.

[0045] The first shutter and the second shutter may be connected via a moving transmission arrangement, which may comprise a line and a pulley / sheave, and the line may be, for example, a wire, rope, and / or band guided over the pulley or sheave.

[0046] The first and second shutters and the moving transfer arrangement can provide a shutter assembly, wherein a lower end of one of the first or second shutters can move upward as a lower end of the other of the first or second shutters moves downward.

[0047] The movement distance of the pair of lines of the movement transfer array between the first shutter and the second shutter may be the same in all operating positions of the first shutter and the second shutter, which means that the distance between the first shutter and the second shutter may be the same in all operating positions of the first shutter and the second shutter.

[0048] The movement transfer arrangement may comprise an endless loop, and the first shutter and the second shutter may be connected to the endless loop.

[0049] The first shutter and the second shutter can be connected to one or more actuators for simultaneous operation of the first shutter and the second shutter. The one or more actuators can operate for opposite movement of the first and second shutters. For example, the one or more actuators can include a first chamber and a second chamber, where the first chamber is connected to the first shutter for operation of the first shutter and the second chamber is connected to the second shutter for operation of the second shutter. Pressurization of the first chamber or the second chamber can actuate the first shutter and the second shutter between their respective open and blocked positions.

[0050] The first and second shutters may form opposite ends of a shutter assembly formed by hinged panels. The first and second shutters may form two parts of a continuous roller shutter, such as a rollover shutter, with a horizontal hinge between the panels of the continuous roller shutter. The shutter assembly may be arranged so that the lower end of one of the first or second shutters can move upward as the lower end of the other of the first or second shutters moves downward.

[0051] The hinged panels may allow portions of the gate to pivot any number of times relative to adjacent portions of the gate, for example, portions of the gate may pivot between 20 degrees and 180 degrees relative to each other, or more preferably between 20 degrees and 90 degrees relative to each other.

[0052] The vehicle gate array may be arranged around or adjacent to the first area, which may, for example, free up space for storage within the storage area or facilitate access to a second area (e.g., a service area).

[0053] The space in the vehicle gate arrangement preferably extends across at least two access openings, in other words the size of the space must be at least the access opening (including the width of the truck) to accommodate all normal size vehicles.

[0054] Similarly, the vehicle gate arrangement may include first and second openings facing the first and second areas, respectively, and the first shutter may be configured to block the first opening, and the second shutter may be configured to block the second opening. The first and second openings are preferably sized to have width and height dimensions according to the largest vehicle expected to pass through. In most cases, it is sufficient for the opening width to be somewhat larger than a single access opening (including the width of the truck), and the opening height to be somewhat taller than the largest vehicle expected to pass through.

[0055] There is further described a vehicle gate arrangement for controlling the passage of vehicles between a first area having a first rail system and a second area having a second rail system via a connecting rail system, the vehicle gate arrangement comprising: a space for accommodating a vehicle; a first shutter for separating the space from the first area; a second shutter for separating the space from the second region; Equipped with Both the first shutter and the second shutter are an open position allowing the passage of vehicles therethrough; - Blocking positions that restrict the passage of vehicles through them; It is operable between

[0056] The first shutter and the second shutter are coupled to each other for synchronous movement, whereby one shutter moves in one direction relative to the first opening and the other shutter moves in the opposite direction relative to the second opening, and the first shutter and / or the second shutter are always in a blocking position.

[0057] At least a portion of the first shutter and the second shutter may move vertically between an open position and a blocked position.

[0058] The first shutter and the second shutter may be counterbalanced.

[0059] There is further described a method of moving a vehicle in need of service between a first area and a second area of ​​a storage system as defined above, the method comprising: - operating the control system to instruct a vehicle operating on the first area to drive into a first shutter of the vehicle gate array; - causing the first shutter to be in an open position to allow a vehicle to enter the space of the vehicle gate arrangement; instructing the control system to open a lock that secures the second shutter in a blocking position; - operating the second shutter from a blocking position to an open position, thereby operating the first shutter from an open position to a blocking position; - operating a control system to instruct the vehicle to drive from the space into a second region; - moving the second shutter from the open position to the blocking position, thereby moving the first shutter from the blocking position to the open position; Includes.

[0060] The step of operating the second shutter may be performed manually by a human operator via a handle on the second shutter, which is preferably directed toward the second area for safe operation.

[0061] Alternatively, the second shutter may be operated via a control panel or activation button located near the second shutter, which may operate a motor that moves the second shutter (and consequently the first shutter) between open and blocked positions.

[0062] As used herein, the term "storage container" is intended to mean any article holder unit having a base and sides, e.g., bins, totes, trays, etc., suitable for removable connection to a container lifting device. The sides may preferably be provided with gripping recesses. The sides are preferably side walls. The height of the side walls may vary depending on the intended use of the storage system and the goods to be stored. The gripping recesses may be arranged on the upper edges of the side walls. The horizontal perimeter of the storage container is preferably rectangular.

[0063] The storage system, vehicle gate arrangement, and method can be used in connection with storage containers and systems such as those described above. However, other areas in which the disclosed storage systems and methods can be used are within vertical farming, micro-fulfillment, or grocery / e-grocery. The present invention provides, for example, the following items. (Item 1) A storage system (1), comprising: A first region (11) comprising a framework structure (100') comprising upright members (102) and a two-dimensional first rail system (108') arranged across the top of the framework structure (100'), the first rail system (108') comprising a first set of parallel rails (110') arranged to guide the movement of vehicles (201, 301, 401, 501) in a first direction (X) across the top of the framework structure (100') and a second direction (Y) across the top of the framework structure that is perpendicular to the first direction. a first region (11) comprising a second set of parallel rails (111') aligned perpendicular to the first set of rails (110') to guide movement of a storage container (106) between a position above the first rail system (108') and a position below the first rail system (108'), the first and second sets of parallel rails (110', 111') dividing the first rail system (108') into a plurality of access openings (112) in the first rail system (108') for allowing the raising and lowering of storage containers (106) between a position above the first rail system (108') and a position below the first rail system (108'); a vehicle (201, 301, 401, 501) operable on the first rail system (108'), the vehicle (201, 301, 401, 501) comprising a first set of wheels (201b, 301b, 401b) for driving in the first direction (X) and a second set of wheels (201c, 301c, 401c) for driving in the second direction (Y); a second area (12) comprising a second rail system (108''); a vehicle gate arrangement (50) for controlling the passage of said vehicles (201, 301, 401, 501) between said first area (11) and said second area (12) via a connecting rail system (108'''); Equipped with The vehicle gate arrangement (50) comprises: a space (51) for accommodating said vehicle (201, 301, 401, 501); a first shutter (52) for separating the space (51) from the first area (11); a second shutter (53) for separating the space (51) from the second area (12); Equipped with Both the first shutter (52) and the second shutter (53) respectively an open position allowing the passage of said vehicle (201, 301, 401, 501) therethrough; - a blocking position through which the passage of said vehicle (201, 301, 401, 501) is restricted; and The storage system (1), wherein the first shutter (52) and the second shutter (53) are coupled to each other for synchronous movement, whereby one shutter (52; 53) moves in one direction relative to the first opening (55) and the other shutter (53; 52) moves in the opposite direction relative to the second opening (56), and the first shutter (52) and / or the second shutter (53) are always in their respective blocking positions. (Item 2) 2. The storage system (1) according to item 1, wherein the first area (11) is a storage area and the second area (12) is a service area. (Item 3) 3. The storage system (1) of item 1 or 2, wherein the top surfaces of the first rail system (108'), the second rail system (108''), and the connecting rail system (108''') are flush with one another. (Item 4) 10. The storage system (1) according to any of the preceding items, wherein the connecting rail system (108''') forms part of the first rail system (108'). (Item 5) 10. The storage system (1) according to any of the preceding items, wherein at least a portion of the first shutter (52) and the second shutter (53) move vertically between the open position and the blocked position. (Item 6) 6. The storage system (1) according to item 5, wherein the first shutter (52) and the second shutter (53) are counterbalanced. (Item 7) 10. The storage system (1) according to any of the preceding items, wherein the first shutter (52) and the second shutter (53) are connected via a moving transmission arrangement (60). (Item 8) 8. The storage system (1) according to item 7, wherein the movement transmission arrangement comprises a line (61) and a pulley / sieve (62). (Item 9) 9. The storage system (1) according to item 8, wherein the moving distances of the pair of lines (61) are the same in all operating positions of the first shutter (52) and the second shutter (53). (Item 10) The storage system (1) according to any one of the preceding items 7 to 9, wherein the moving transmission arrangement comprises an endless loop (76), and the first shutter (52) and the second shutter (53) are connected to the endless loop (76). (Item 11) 5. The storage system (1) according to any one of the preceding items 1 to 4, wherein the first shutter (52) and the second shutter (53) are connected to one or more actuators for simultaneous operation of the first shutter (52) and the second shutter (53). (Item 12) 6. A storage system (1) according to any one of the preceding items 1 to 5, wherein the first shutter (52) and the second shutter (53) form opposite ends of a shutter assembly formed by a hinged panel (57). (Item 13) 10. The storage system (1) according to any of the preceding items, wherein the vehicle gate arrangement (50) is arranged around or adjacent to the first area (11). (Item 14) 10. A storage system (1) according to any of the preceding items, wherein the space (51) extends across at least two access openings (112). (Item 15) A vehicle gate arrangement (50) for controlling the passage of vehicles (201, 301, 401, 501) between a first area (11) having a first rail system (108') and a second area (12) having a second rail system (108'') via a connecting rail system (108'''), said vehicle gate arrangement (50) comprising: a space (51) for accommodating said vehicle (201, 301, 401, 501); a first shutter (52) for separating the space (51) from the first area (11); a second shutter (53) for separating the space (51) from the second area (12); Equipped with Both the first shutter (52) and the second shutter (53) an open position allowing the passage of said vehicle (201, 301, 401, 501) therethrough; - a blocking position through which the passage of said vehicle (201, 301, 401, 501) is restricted; and The vehicle gate arrangement (50) includes a first shutter (52) and a second shutter (53) coupled to each other for synchronous movement, whereby one shutter (52; 53) moves in one direction relative to a first opening (55) and the other shutter (53; 52) moves in an opposite direction relative to a second opening (56), and the first shutter (52) and / or the second shutter (53) are always in the blocking position. (Item 16) Item 16. The vehicle gate arrangement (50) according to item 15, wherein at least a portion of the first shutter (52) and the second shutter (53) move vertically between the open position and the blocked position. (Item 17) Item 17. The vehicle gate arrangement (50) according to item 16, wherein the first shutter (52) and the second shutter (53) are counterbalanced. (Item 18) A method for moving a vehicle (201, 301, 401, 501) in need of service between a first area (11) and a second area (12) of a storage system (1) according to any one of the preceding items 1 to 14, said method comprising: - operating a control system (500) to instruct the vehicles (201, 301, 401, 501) operating on the first area (11) to drive towards the first shutter (52) of the vehicle gate arrangement (50); - ensuring that the first shutter (52) is in the open position so that the vehicle (201, 301, 401, 501) can enter the space (51) of the vehicle gate arrangement (50); - instructing the control system (500) to open a lock that secures the second shutter (53) in the blocking position; - moving the second shutter (53) from the blocking position to the open position, thereby moving the first shutter (52) from the open position to the blocking position; - operating the control system (500) to instruct the vehicle (201, 301, 401, 501) to drive from the space (51) to the second area (12); - moving the second shutter (53) from the open position to the blocking position, thereby moving the first shutter (52) from the blocking position to the open position; A method comprising: (Item 19) Item 19. The method according to item 18, wherein the step of operating the second shutter (53) is performed manually by an operator. [Brief explanation of the drawings]

[0064] The following drawings are included to facilitate an understanding of the invention: The drawings illustrate embodiments of the invention, herein described by way of example only.

[0065] [Figure 1] FIG. 1 is a perspective view of a framework structure of a prior art automatic storage and retrieval system.

[0066] [Figure 2] FIG. 2 is a perspective view of a prior art container handling vehicle having an internally arranged cavity for carrying storage containers therein.

[0067] [Figure 3] FIG. 3 is a perspective view of a prior art container handling vehicle having a cantilever beam for carrying storage containers downward.

[0068] [Figure 4A] FIG. 4A is a perspective view from below of a prior art container handling vehicle having an internally arranged cavity for carrying storage containers therein.

[0069] [Figure 4B] FIG. 4B is a perspective view of a prior art container handling vehicle in the form of a delivery vehicle with a container carrier capable of supporting storage containers from below.

[0070] [Figure 5A] Figures 5A-5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5A is a side perspective view from the first area of ​​the storage system in a direction toward the vehicle gate array and the second area, with the first shutter in the open position and the second shutter in the blocking position, and a vehicle operating in the first area positioned adjacent to the first shutter to enter the space of the vehicle gate array. [Figure 5B] Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5B is a side perspective view from the opposite side compared to the view of Figure 5A, i.e., the view of Figure 5B is a view from the side of the second area of ​​the storage system in the direction toward the vehicle gate array and the first area. [Figure 5C] Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5C is a side perspective view from the first area of ​​the storage system in the direction toward the vehicle gate array and the second area, with the first shutter in the open position and the second shutter in the blocking position, and a vehicle operating in the first area entering the space of the vehicle gate array. [Figure 5D]Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5D is a side perspective view viewed from the opposite side compared to the view of Figure 5C, i.e., the view of Figure 5D is a view viewed from the side of the second area of ​​the storage system in the direction toward the vehicle gate array and the first area. [Figure 5E] Figures 5A-5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows the vehicle to pass therethrough and a blocking position that restricts the vehicle from passing therethrough; in particular, Figure 5E is a side perspective view from the first area of ​​the storage system in the direction toward the vehicle gate array and the second area, with the first shutter in the blocking position and the second shutter about to enter the open position, and the vehicle still accommodated within the space of the vehicle gate array. [Figure 5F] Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5F is a side perspective view viewed from the opposite side compared to the view of Figure 5E, i.e., the view of Figure 5F is a view viewed from the side of the second area of ​​the storage system in the direction toward the vehicle gate array and the first area. [Figure 5G]Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5G is a side perspective view from the side of the first area of ​​the storage system in the direction toward the vehicle gate array and the second area, with the first shutter in the blocking position and the second shutter in the open position, and a vehicle still accommodated in the space of the vehicle gate array. [Figure 5H] Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5H is a side perspective view viewed from the opposite side compared to the view of Figure 5G, i.e., the view of Figure 5H is a view from the side of the second area of ​​the storage system in the direction toward the vehicle gate array and the first area. [Figure 5I] Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of the vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5I is a side perspective view from the side of the second area of ​​the storage system in the direction toward the vehicle gate array and the first area, with the second shutter in the blocking position and the first shutter in the open position, and a vehicle housed within the space moving into the second area. [Figure 5J]Figures 5A to 5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of a vehicle gate array move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, Figure 5J is a side view of the storage system, which comprises a first area with a first rail system, a vehicle gate array with a connecting rail system, and a second area with a second rail system; in Figure 5J, the first shutter is in a blocking position and the second shutter is in an open position. [Figure 5K] 5A-5K are different views of a first embodiment of a storage system in which a first shutter and a second shutter of a vehicle gate arrangement move vertically across a pair of openings, respectively, between an open position that allows vehicles to pass therethrough and a blocking position that restricts vehicles from passing therethrough; in particular, FIG. 5K is a top view of the storage system of FIG. 5J.

[0071] [Figure 6] FIG. 6 is a detailed view of the vehicle gate arrangement of FIGS. 5A to 5K.

[0072] [Figure 7] FIG. 7 is a detailed view of a second embodiment in which the vehicle gate arrangement comprises a first shutter and a second shutter forming opposite ends of the vehicle gate arrangement with the shutter assembly formed by a hinged panel.

[0073] [Figure 8] FIG. 8 is a detailed view of a third embodiment in which the first and second shutters are suspended on either side of a central pivot.

[0074] [Figure 9] FIG. 9 is a top view of a fourth embodiment in which the first and second shutters are connected to endless loops for laterally moving between an open position and a blocked position, respectively. DETAILED DESCRIPTION OF THE INVENTION

[0075] Detailed Description of the Invention Embodiments of the invention will now be described in more detail with reference to the accompanying drawings, in which it should be understood, however, that the drawings are not intended to limit the invention to the subject matter shown in the drawings.

[0076] The framework structure 100 of the automated storage and retrieval system 1 may be constructed in a manner similar to the prior art framework structure 100 described above in connection with Figures 1-3. That is, the framework structure 100 may include several upright members 102 and may include a first upper rail system 108 extending in the X and Y directions.

[0077] The framework structure 100 may further comprise storage compartments in the form of storage columns 105 disposed between the members 102, and the storage containers 106 may be stackable in stacks 107 within the storage columns 105.

[0078] The framework structure 100 can be of any size. In particular, it is understood that the framework structure can be significantly wider and / or longer and / or deeper than that disclosed in Figure 1. For example, the framework structure 100 can have a horizontal extent of greater than 700 x 700 columns and a storage depth of greater than 12 containers.

[0079] 4B is a perspective view of a prior art container handling vehicle 501 in the form of a delivery vehicle 501 having a container carrier 502 capable of supporting a storage container 106 from below. The delivery vehicle 501 features a body 501a and first and second sets of wheels 501b, 501c that allow lateral movement of the delivery vehicle 501 in the X and Y directions, respectively, on the rail system 108.

[0080] Figures 5A to 5K are different views of the first embodiment of the storage system 1, in which the first shutter 52 and the second shutter 53 of the vehicle gate array 50 move only vertically relative to the opening, and each shutter 52, 53 moves between an open position that allows the vehicle 301 to pass and a blocking position that restricts the vehicle 301 from passing.

[0081] Figure 5A is a side perspective view of the first area 11 of the storage system 1 in the direction toward the vehicle gate array 50 and the second area 12, and in Figure 5A, the first shutter 52 is in an open position, the second shutter 53 is in a blocking position, and a vehicle 301 operating on the first area 11 is positioned adjacent to the first shutter 52 as it attempts to enter the space 51 of the vehicle gate array 50.

[0082] Figure 5B is a side perspective view from the opposite side to the view of Figure 5A, i.e., the view of Figure 5B is from the side of the second area 12 of the storage system 1, looking in the direction towards the vehicle gate array 50 and the first area 11.

[0083] 5A and 5B, a first region 11 is disclosed that is formed from a framework structure 100' comprising upright members 102 and a two-dimensional first rail system 108' arranged across the top of the framework structure 100'. The first rail system 108' comprises a first set of parallel rails 110' arranged to guide movement of a vehicle 301 in a first direction X across the top of the frame structure 100', and a second set of parallel rails 111' arranged perpendicular to the first set of rails 110' to guide movement of a vehicle 301 in a second direction Y across the top of the frame structure 100' that is perpendicular to the first direction. First and second sets of parallel rails 110', 111' divide the first rail system 108' into a plurality of access openings 112 in the first rail system 108', which allow the storage containers 106 to be raised and lowered between a position above the first rail system 108' and a position below the first rail system 108'. A vehicle 301 is operable on the first rail system 108' and includes a first set of wheels 301b for driving in a first direction X and a second set of wheels 301c for driving in a second direction Y. A second area 12 is further disclosed, separated from the first area 11 by a vehicle gate arrangement 50 and window panels 70. The second area 12 includes a second rail system 108''. The second rail system 108'' has a rail system similar to the first rail system 108', i.e., the second rail system 108'' is shown with a first set of parallel rails 110'' arranged to guide vehicle movement in a first direction X across the top of the frame structure, and a second set of parallel rails 111'' arranged perpendicular to the first set of rails 110'' to guide vehicle movement in a second direction Y perpendicular to the first direction X.

[0084] As shown, the top surfaces of the first rail system 108', the second rail system 108'', and the connecting rail system 108''' are flush with one another. That is, the top surfaces of the first rail system 108', the second rail system 108'', and the connecting rail system are at the same height so that the vehicle 301 can move self-propelled between the first area 11 and the second area 12.

[0085] Vehicle gate array 50 controls the passage of vehicles 301 between first area 11 and second area 12. As shown in FIG. 5A , vehicle gate array 50 has space 51 for accommodating vehicle 301. Space 51 is dimensioned based on the size of passing vehicles 201, 301, 401, 501. Space 51 is of a size sufficient to accommodate prior art cantilevered container handling vehicle 301. Thus, space 51 of vehicle gate array 50 extends across at least two access openings (including the width of the track) to accommodate all regular-sized vehicles (such as prior art cantilevered container handling vehicle 301).

[0086] The vehicle gate arrangement 50 includes a first shutter 52 for separating the space 51 from the first region 11 and a second shutter 53 for separating the space 51 from the second region 12. The first shutter 52 can prevent or block (limit) passage through a first opening 55, and the second shutter 53 can prevent or block (limit) passage through a second opening 56 (not shown in FIGS. 5A and 5B, see, for example, FIG. 5F). The height and width of the first and second openings 55, 56 depend on the largest vehicle 201, 301, 401, 501 expected to pass through. In most cases, it will be sufficient for the width of the openings 55, 56 to be somewhat larger than one of the access openings (including the width of the truck), and for the height of the first and second openings 55, 56 to be somewhat taller than the largest vehicle 201, 301, 401, 501 expected to pass through them.

[0087] 5A and 5B, the first shutter 52 is in the open position and the second shutter 53 is in the blocking position. Both the first shutter 52 and the second shutter 53 are operable between the open position that allows the vehicles 201, 301, 401, 501 to pass and the blocking position that restricts the passage of the vehicles 201, 301, 401, 501. However, at least one of the first shutter 52 and the second shutter 53 is always in the blocking position.

[0088] The first shutter 52 and second shutter 53 are coupled to each other for synchronous movement such that as one shutter 52, 53 moves in one direction across the opening, the other shutter 53, 52 moves in the opposite direction across the opening.

[0089] The first and second shutters 52, 53 may be rectangular and configured to be vertically movable. The vertical movement distance of the shutters 52, 53 is based on the height of the passing vehicles 201, 301, 401, 501. Similarly, the overall height of the vehicle gate array 50 depends on the space required to allow for the vertical movement distance. Due to the vertical movement of the first and second shutters 52, 53, the height of the vehicle gate array 50 in Figures 5A-5K and 6 needs to be at least twice the height of the first and second shutters 52, 53.

[0090] The first and second shutters 52, 53 in Figures 5A to 5K and 6 are coupled to each other via a movement transmission arrangement 60 in the form of lines 61 and pulleys 62. As shown in Figure 5A, two lines 61 are connected at the upper corners of each of the rectangular first and second shutters 52, 53, and each line 61 is guided over two pulleys 62. Furthermore, the space 51 of the vehicle gate arrangement 50 in Figures 5A to 5K and 6 is closed by panels 71 on both sides to prevent vehicles 201, 301, 401, 501 from unintentionally entering or exiting the space 51.

[0091] Figure 5C is a side perspective view from the first area 11 of the storage system 1 in the direction toward the vehicle gate array 50 and the second area 12, and in Figure 5C, the first shutter 52 is in the open position, the second shutter 53 is in the blocking position, and a vehicle 301 operating on the first area 11 has entered the space 51 of the vehicle gate array 50.

[0092] Figure 5D is a side perspective view from the opposite side to the view of Figure 5C, i.e., the view of Figure 5D is from the side of the second area 12 of the storage system 1, looking in the direction towards the vehicle gate array 50 and the first area 11.

[0093] Figure 5E is a side perspective view from the first area 11 of the storage system 1 in the direction toward the vehicle gate array 50 and the second area 12, in which the first shutter 52 is in a blocking position, the second shutter 53 is about to enter the open position, and the vehicle 301 is still accommodated within the space 51 of the vehicle gate array 50.

[0094] Figure 5F is a side perspective view from the opposite side to the view of Figure 5E; i.e., the view of Figure 5F is looking from the side of the second area 12 of the storage system 1, looking in the direction toward the vehicle gate arrangement 50 and the first area 11. To move the second shutter 53 to the open position (and thus the first shutter 52 to the blocking position), a human operator (not shown) manipulated the handle 54 and lifted the second shutter 53 upward. Due to the fact that the first and second shutters in Figures 5A and 6 are counterbalanced by the movement transmission arrangement 60 comprising the line 61 and pulley 62, the force required to lift the second shutter 53 upward is reduced.

[0095] Figure 5G is a side perspective view from the first area 11 of the storage system 1 in the direction toward the vehicle gate array 50 and the second area 12, in which the first shutter 52 is in a blocking position and the second shutter 53 is in an open position, with the vehicle 301 still accommodated in the space 51 of the vehicle gate array 50.

[0096] Figure 5H is a side perspective view from the opposite side to the view of Figure 5G, i.e., the view of Figure 5H is from the side of the second area 12 of the storage system 1, looking in the direction towards the vehicle gate array 50 and the first area 11.

[0097] Figure 5I is a side perspective view of the second area 12 of the storage system 1 in the direction toward the vehicle gate array 50 and the first area 11, with the second shutter 53 in a blocking position, the first shutter 52 in an open position, and the vehicle 301 stored in the space 51 moving into the second area 12.

[0098] Movement of the vehicle 301 from the first area 11 to the second area 12 through the vehicle gate array 50 is by self-propelled movement on the first rail system 108', the connecting rail system 108'', and the second rail system 108''.

[0099] Figure 5J is a side view of the storage system 1, which includes a first area 11 having a first rail system 108', a vehicle gate arrangement 50 having a connecting rail system 108''', and a second area 12 having a second rail system 108'', and in Figure 5J the first shutter 52 is in a blocking position and the second shutter 53 is in an open position.

[0100] FIG. 5K is a top view of the storage system of FIG. 5J.

[0101] FIG. 6 is a detailed view of the vehicle gate arrangement 50 in FIGS. 5A to 5K. The vehicle gate arrangement 50 includes: a space 51 for accommodating vehicles 201, 301, 401, 501 (vehicles are not shown in Figure 6, see for example Figures 5C to 5H); a first shutter 52 for separating the space 51 from the first area 11 (the first area is not shown in FIG. 6, see FIGS. 5A to 5K); a second shutter 53 for separating the space 51 from the second region 12 (the second region is not shown in FIG. 6, see FIGS. 5A to 5K); Equipped with. Both the first shutter 52 and the second shutter 53 are operable between an open position that allows the vehicles 201, 301, 401, 501 to pass therethrough and a blocking position that restricts the vehicles 201, 301, 401, 501 from passing therethrough.

[0102] The first shutter 52 and the second shutter 53 are coupled to each other via a movement transmission arrangement 60 in the form of lines 61 and pulleys 62 to provide a shutter assembly. In this manner, the first shutter 52 and the second shutter 53 maintain a constant separation during movement between their respective open and blocked positions. As shown in FIG. 6 , two lines 61 are connected at the upper corners of each of the rectangular first and second shutters 52 and 53, and each line 61 is guided over two pulleys 62. Furthermore, the space 51 of the vehicle gate arrangement 50 of FIG. 6 is closed by panels 71 on both sides to prevent vehicles 201, 301, 401, and 501 from unintentionally entering or exiting the space 51.

[0103] The corner members 72 are arranged at the corners of the vehicle gate arrangement 50. The corner members 72 support the panels 71 and provide support for raising and lowering the first and second shutters 52, 53. To guide the movement of the first and second shutters 52, 53, the corner members 72 may be provided with grooves or recesses 73 having a shape complementary to the sides of the first and second shutters 52, 53 to ensure their vertical guidance.

[0104] The vehicle gate array 50 may include one or more fastening brackets 74 for fixedly fastening to an underlying rail system 108', 108'', 108''' (rail system not shown in FIG. 6).

[0105] Referring again to the embodiment of FIGS. 5A-5K and 6, the operational sequence for moving a vehicle 301 requiring service between the first area 11 and the second area 12 of the storage system 1 may include: - operating the control system 500 to instruct a vehicle 201, 301, 401, 501 operating on the first area 11 to drive into the first shutter 52 of the vehicle gate arrangement 50; - ensuring that the first shutter 52 is in an open position so that the vehicle 201, 301, 401, 501 can enter the space 51 of the vehicle gate arrangement 50; - instructing the control system 500 to open a lock (not shown) that secures the second shutter 53 in a blocking position; - moving the second shutter 53 from the blocking position to the open position, thereby moving the first shutter 52 from the open position to the blocking position; - operating the control system 500 to instruct the vehicle 201, 301, 401, 501 to drive from the space 51 into the second area 12; - moving the second shutter 53 from the open position to the blocking position, thereby moving the first shutter 52 from the blocking position to the open position; may include:

[0106] The step of operating the second shutter 53 may be performed manually by a human operator operating the handle 54 of the second shutter 53 .

[0107] 7 is a detailed view of a second embodiment in which the vehicle gate arrangement 50 comprises a first shutter 52 and a second shutter 53 which form opposite ends of a shutter assembly formed by a hinged panel 57. The shutter assembly may be arranged so that the lower end of one of the first or second shutters 52;53 can move upwardly as can the lower end of the other of the first or second shutters 53;52.

[0108] In this embodiment, the first and second shutters 52, 53 form two parts of a continuous roller shutter, e.g., a rollover shutter, with a horizontal hinge 58 between the panels 57 of the continuous roller shutter. In this way, the first shutter 52 and the second shutter 53 maintain a constant separation during movement between their respective open and blocked positions.

[0109] Similar to the embodiment of FIG. 6, the vehicle gate arrangement of FIG. 7 can have corner members 72 arranged at the corners of the vehicle gate arrangement 50. The corner members 72 support the panels 71 and provide support for raising and lowering the first and second shutters 52, 53. To guide the movement of the first and second shutters 52, 53, the corner members 72 can have grooves or recesses 73 (not shown in FIG. 7; see, e.g., FIG. 6) complementary in shape to the sides of the first and second shutters 52, 53 to ensure their vertical guidance. The shutters also have handles 54 for operation by a human operator. Additionally, the vehicle gate arrangement 50 can have one or more fastening brackets 74 for fixed fastening to an underlying rail system 108', 108'', 108''' (rail system not shown in FIG. 7).

[0110] Figure 8 is a detailed view of a third embodiment in which the first and second shutters 52, 53 are suspended from the same line 61 that extends over a central pivot 75 (the central pivot 75 coincides with the pulley 62 in Figure 8). This setup provides a counterbalancing effect for the first and second shutters 52, 53 similar to the embodiment of Figures 5A-5K and 6 because the first and second shutters 52, 53 are similarly sized and arranged on either side of the central pivot 75. A set of two pulleys 62 is arranged at a lower height than the pulley 62 that coincides with the central pivot 75 to guide the line 61 (and therefore the first and second shutters 52, 53) towards the central pivot 75. The first and second shutters 52, 53 in Figure 8 are formed by panels 57 between which there is a horizontal hinge 58, which provides the possibility of guiding the first and second shutters 52, 53 over two lower pulleys 62. In this way, the first shutter 52 and the second shutter 53 maintain a constant separation during movement between their respective open and blocked positions.

[0111] 5A-5K and 6, the embodiment of FIG. 8 provides the possibility of a lower vehicle gate arrangement 50 since the first and second shutters 52, 53 are raised at an inclined angle towards the central pivot 75.

[0112] 9 is a top view of a fourth embodiment in which the first and second shutters 52, 53 are connected to an endless loop 76 to move laterally between an open position and a blocked position. The first and second shutters 52, 53 are connected to the same endless loop 76, so any horizontal movement of the second shutter 53 also moves the first shutter 52, which moves in the opposite direction to the second shutter 53 because the first and second shutters 52, 53 are arranged on opposite sides of the space 51. The endless loop 76 in FIG. 9 surrounds the space 51 and is guided around the space 51 by pulleys 62 at all corners of the space 51.

[0113] In FIG. 9, the first shutter 52 is in the open position, the second shutter 53 is in the blocking position, and the vehicle 301 is positioned in the second area 12 .

[0114] Although not explicitly disclosed in the embodiments of Figures 7, 8, and 9, the features of the first region 11, the second region 12, and the first rail system 108', the second rail system 108'', and the connecting rail system 108''' are similar to the features described in connection with Figures 5A-5K and 6.

[0115] In the foregoing description, various aspects of the storage system, vehicle gate arrangement, and method according to the present invention have been described in connection with exemplary embodiments. For purposes of explanation, specific numbers, systems, and configurations have been set forth to provide a thorough understanding of the system and its operation. However, this description is not intended to be construed in a limiting sense. Various modifications and variations of the exemplary embodiments, as well as other embodiments of the system that are apparent to those skilled in the art to which the disclosed subject matter pertains, are deemed to be within the scope of the present invention.

[0116] List of Reference Numbers [Table 1-1] [Table 1-2]

Claims

1. A storage system (1), a first region (11) comprising a framework structure (100') comprising a two-dimensional first rail system (108') arranged across the top of the framework structure (100'); a vehicle (201, 301, 401, 501) operable on said first rail system (108'); a second area (12) comprising a second rail system (108''); a vehicle gate arrangement (50) for controlling the passage of said vehicles (201, 301, 401, 501) between said first area (11) and said second area (12) via a connecting rail system (108'''); Equipped with The vehicle gate arrangement (50) comprises: a space (51) for accommodating said vehicle (201, 301, 401, 501), a first shutter (52) for separating said space (51) from said first area (11); a second shutter (53) for separating said space (51) from said second area (12); Equipped with The storage system (1), wherein the first shutter (52) and the second shutter (53) are operable for synchronous movement in opposite directions between an open position that allows the passage of the vehicle (201, 301, 401, 501) therethrough and a blocking position that restricts the passage of the vehicle (201, 301, 401, 501).

2. A storage system (1) as described in claim 1, wherein the first area (11) is a storage area and the second area (12) is a service area.

3. A storage system (1) as described in claim 1, wherein the top surfaces of the first rail system (108'), the second rail system (108''), and the connecting rail system (108''') are coplanar with each other.

4. A storage system (1) as described in claim 1, wherein the connecting rail system (108'') forms part of the first rail system (108').

5. A storage system (1) as described in claim 1, wherein at least a portion of the first shutter (52) and the second shutter (53) move vertically between the open position and the blocked position.

6. A storage system (1) as described in claim 5, wherein the first shutter (52) and the second shutter (53) are counterbalanced.

7. A storage system (1) as described in claim 1, wherein the first shutter (52) and the second shutter (53) are connected via a moving transmission arrangement (60).

8. A storage system (1) as described in claim 7, wherein the movement transmission arrangement comprises a line (61) and a pulley / sieve (62).

9. A storage system (1) as described in claim 8, wherein the movement distance for the pair of lines (61) is the same in all operating positions of the first shutter (52) and the second shutter (53).

10. A storage system (1) as described in claim 7, wherein the moving transmission arrangement comprises an endless loop (76), and the first shutter (52) and the second shutter (53) are connected to the endless loop (76).

11. A storage system (1) as described in claim 1, wherein the first shutter (52) and the second shutter (53) are connected to one or more actuators for simultaneous operation of the first shutter (52) and the second shutter (53).

12. A storage system (1) as described in claim 1, wherein the first shutter (52) and the second shutter (53) form opposing ends of a shutter assembly formed by a hinged panel (57).

13. A storage system (1) as described in claim 1, wherein the vehicle gate arrangement (50) is arranged around or near the first area (11).

14. A storage system (1) as described in claim 1, wherein the space (51) extends across at least two access openings (112).

15. A vehicle gate arrangement (50) for controlling the passage of vehicles (201, 301, 401, 501) between a first area (11) having a first rail system (108') and a second area (12) having a second rail system (108'') via a connecting rail system (108''), said vehicle gate arrangement (50) comprising: a space (51) for accommodating said vehicle (201, 301, 401, 501), a first shutter (52) for separating said space (51) from said first area (11); a second shutter (53) for separating said space (51) from said second area (12); Equipped with The vehicle gate arrangement (50) is operable between an open position that allows the vehicle (201, 301, 401, 501) to pass therethrough and a blocking position that restricts the vehicle (201, 301, 401, 501) from passing therethrough.

16. A vehicle gate arrangement (50) as described in claim 15, wherein at least a portion of the first shutter (52) and the second shutter (53) move vertically between the open position and the blocked position.

17. A vehicle gate arrangement (50) as described in claim 16, wherein the first shutter (52) and the second shutter (53) are counterbalanced.

18. A method for moving a vehicle (201, 301, 401, 501) in need of service between a first area (11) and a second area (12) of a storage system (1) according to any one of claims 1 to 14, said method comprising: - operating a control system (500) to instruct the vehicles (201, 301, 401, 501) operating on the first area (11) to drive towards the first shutter (52) of the vehicle gate arrangement (50); - ensuring that said first shutter (52) is in said open position so that said vehicle (201, 301, 401, 501) can enter said space (51) of said vehicle gate arrangement (50); - instructing said control system (500) to open the lock that secures said second shutter (53) in said blocking position; - moving the second shutter (53) from the blocking position to the open position, thereby causing the first shutter (52) to move from the open position to the blocking position; - operating said control system (500) to instruct said vehicle (201, 301, 401, 501) to drive from said space (51) into said second area (12); - moving the second shutter (53) from the open position to the blocking position, thereby moving the first shutter (52) from the blocking position to the open position; A method comprising:

19. The method described in claim 18, wherein the step of operating the second shutter (53) is performed manually by an operator.

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