JP6468495B2 - Stack storage device - Google Patents

Description

  The present invention relates to a stack storage device that stacks and stores a plurality of loads.

  In Patent Document 1 (EP767113B), a plurality of packages are stacked in a vertical direction and stored in a mounting unit, and the packages are loaded one by one or in a stacked state by a transfer device such as a crane traveling on the ceiling. It is disclosed to issue. By the way, if luggage is stacked and stored, it may collapse due to an earthquake.

EP767113B

  An object of the present invention is to prevent a collapse of a load due to an earthquake in an apparatus for stacking and storing a load on a mounting portion.

The present invention relates to a placement unit for storing a stack of loads as a stacked body, a transfer device that can take out a load from the top of the stack and add the load to the top of the stack, and a controller that controls the transfer device; A stack storage device comprising:
It has a shape that can be stacked with luggage on the laminate, and has a seismic isolation / seismic control unit that performs seismic isolation or seismic control functions in the event of an earthquake.
The controller is configured to control the transfer device such that the seismic isolation / seismic unit is stacked with the load.

  In this invention, the collapse of the load at the time of an earthquake can be prevented by stacking the seismic isolation / seismic control unit together with the load. It should be noted that in the present invention, the collapse of the stack of stacked luggage itself is prevented, and the shelf of the automatic warehouse and the building are not subjected to seismic isolation.

  Preferably, the stacking / storage device further includes a unit mounting portion that allows the seismic isolation / seismic control unit to be stacked and stored, and allows the seismic isolation / seismic control unit to be taken in and out by the transfer device. If the seismic isolation / seismic unit is stacked and stored on the unit mounting portion, the transfer device can quickly take out the seismic isolation / seismic unit and efficiently store the seismic isolation / seismic unit.

  Preferably, the stack storage device is configured to stack the seismic isolation / seismic control unit together with the load on the stacked body having a predetermined height of a predetermined value or more. Ease of collapse of the laminated body is basically determined by the height of the laminated body. By stacking the seismic isolation / seismic control unit together with the load on the laminated body whose planned height exceeds the predetermined value, Load collapse can be effectively prevented.

  More preferably, the stack storage device is configured to stack two or more seismic isolation / seismic control units together with a load on a laminate having a predetermined height of a second predetermined value or more. Even in tall stacks, loading two or more seismic isolation / seismic units together with luggage can prevent collapse of the load during an earthquake.

  Preferably, the stack storage device is configured to stack the seismic isolation units between the floor surface of the mounting portion and the lowermost package of the stacked body. By placing the seismic isolation unit at the bottom of the stack, the seismic isolation effect on the upper luggage can be demonstrated, and the seismic isolation unit does not hinder the loading and unloading of the luggage.

  Preferably, the controller stores the shipment schedule of packages including the number of packages to be delivered collectively from one stack, and avoids the space between packages to be delivered together and stacks seismic isolation / seismic control units. Is configured to determine. In this way, the seismic isolation / seismic unit does not prevent the shipment of the luggage.

  Preferably, the stack storage device includes a plurality of types of seismic isolation units, and the controller is configured to select the type of the seismic isolation unit according to the mass of the stack. The function of the seismic isolation unit is affected by the gravity applied to the seismic isolation unit from the laminate, and it is easy to demonstrate the seismic isolation function when receiving moderate gravity. Therefore, by selecting the type of seismic isolation unit according to the mass of the laminate, it is possible to effectively prevent the collapse of the load at the time of the earthquake.

The top view which shows the decomposition | disassembly state of the seismic isolation unit used in the Example Vertical sectional view of the seismic isolation unit of FIG. Front view of other seismic isolation units used in the examples Vertical section of the vibration control unit used in the example A diagram schematically showing the relationship between the height of luggage and the location of seismic isolation / seismic control units Side view of the stack storage device of the embodiment Plan view of the stack storage device of the embodiment The flowchart which shows the arrangement algorithm of the seismic isolation / seismic control unit in the embodiment

  In the following, an optimum embodiment for carrying out the present invention will be shown. The scope of the present invention should be determined according to the understanding of those skilled in the art based on the description of the scope of the claims, taking into account the description of the specification and well-known techniques in this field.

  1 to 8 show a stack storage device of an embodiment. 1 and 2 show a relatively light-weight seismic isolation unit 2 for luggage, and 3 and 4 are upper and lower plates, which are made of steel, synthetic resin or the like. A slider 5 made of metal or synthetic resin is disposed between the plates 3 and 4 and can freely move within a range sandwiched between the sliding surfaces 6 and 7 of the plates 3 and 4. The front and back of the slider 5 are made of a sliding material such as a synthetic resin having a small friction coefficient. The sliding surfaces 6 and 7 are recessed at the central portion, the peripheral portions protrude, and the central portion of the sliding surfaces 6 and 7 is a stable position of the slider 5. When the slider 5 receives an earthquake force, the slider 5 moves up, down, left, and right in FIG. 1, thereby making it difficult for vibration due to the earthquake to be transmitted to the baggage above the seismic isolation unit 2. When the earthquake stops, the slider 5 returns to the center of the sliding surfaces 6 and 7. A flange 9 for chucking a transfer device such as a crane is provided on the bottom surface of the plate 4. Furthermore, the size of the plates 3 and 4 is determined so that a plurality of packages can be stacked on the upper portion thereof, and is set to be approximately the same as the size of the package in a plan view, for example.

  FIG. 3 shows a seismic isolation unit 12 for relatively heavy luggage. Reference numerals 13 and 14 denote upper and lower plates, which are made of steel, synthetic resin, or the like. A plurality of the rubber layers 16 are alternately stacked. In the seismic isolation unit 12, the rubber layer 16 is deformed, so that the vibration due to the earthquake is less likely to be transmitted to the upper luggage than the seismic isolation unit 12. When the earthquake stops, the rubber layer 16 returns to its original shape. Preferably, the rubber layer 16 is composed of a mixture of synthetic resin powder, metal powder, or the like and rubber, and when the rubber layer 16 is deformed, heat is generated by the viscous resistance between the powder and rubber to absorb seismic energy. Like that. Instead of mixing the powder in the rubber layer 16, a lead bar or the like extending in the vertical direction is arranged in the center of the seismic isolation unit 12 in plan view so that the seismic energy is absorbed by plastic deformation of the lead bar. good. The lead bar may not be used, the powder may not be mixed into the rubber layer 16, and the seismic energy may not be absorbed. Also in the seismic isolation unit 12, a flange 9 is provided on the bottom surface of the plate 14, for example, so that the transfer device can be chucked.

  FIG. 4 shows the vibration control unit 22 arranged at the top of the stacked luggage. Reference numeral 23 denotes a container, and 24 denotes an upper member such as a lid. The pin 25 supports a weight 25 in a swingable manner, and includes a flange 9. In the event of an earthquake, the weight 25 moves differently from the luggage, thereby absorbing the shaking caused by the earthquake. Further, for example, a sliding material 27 such as a synthetic resin is disposed on the bottom surface of the weight 25 so that the seismic energy is absorbed by the frictional force with the container 23. The vibration control unit 22 absorbs the earthquake energy, so that the amplitude of the lower load 30 is smaller than that of the vibration control unit 22. In the vibration control unit 22, it is sufficient that the weight 25 can be moved while resisting resistance such as frictional force as long as it does not protrude from the container 23. As long as this is possible, the structure of the vibration control unit 22 is arbitrary.

  FIG. 5 shows the arrangement positions of the units 2, 12, and 22 according to the height H of the luggage 30. The height H can also be expressed by the number of stages of the luggage 30, and the arrangement positions of the units 2, 12, and 22 are determined according to the heights H1 to H3, assuming that the shape of the luggage 30 is constant. However, it is preferable to reduce the heights H1 to H3 for a luggage having a small bottom area and to increase the heights H1 to H3 for a luggage having a large bottom area. Here, although the bucket-shaped luggage 30 is considered, the tires, cardboards, and the like of automobiles may be used as the luggage.

  A stacked body in which the loads 30 are stacked up and down is referred to as a stack, and in the embodiment, the net height obtained by removing the units 2, 12, and 22 from the stack is represented by H. The type of the seismic isolation units 2 and 12 is selected according to the weight of the luggage. For example, in the case of a lightweight luggage having a small number of empty items to be accommodated, the lightweight seismic isolation unit 2 accommodates a large number of articles and has a large weight. Then, the seismic isolation unit 12 for heavy objects is used. A plurality of types of seismic isolation units 2 may be provided according to the weight of the luggage. Similarly, a plurality of types of seismic isolation units 12 may be provided according to the weight of the luggage.

  In the stack 31 having a height less than H1, the units 2, 12, and 22 need not be used. In the stacks 32 and 33 having a height of H 1 or more and less than H 2, the seismic isolation units 2 and 12 are arranged on the floor surface of the placement portion 41, and the luggage 30 is stacked on the units 2 and 12. In the stacks 34 and 35 having a height of H2 or more, the seismic isolation units 2 and 12 are disposed at intermediate positions in the stack height direction, and when the height exceeds H3, for example, the vibration control unit 22 is disposed at the top of the stack. Place. In the stacks 32 to 35, it is preferable to dispose the seismic isolation units 2 and 12 between the floor surface of the placement portion 41 and the lowermost load 30. It is possible to reduce the vibration caused by the earthquake for all the loads 30 in the stacks 32 to 35 without interfering with the loading and unloading of a plurality of the loads 30. However, the bottom layer of the stacks 32 to 35 may be the luggage 30, and the seismic isolation units 2 and 12 may be arranged on the top.

  6 and 7 show the stack storage device 40. A stack is accommodated in the mounting portion 41, a plurality of horizontal cross beams 43 are supported by the pillars 42, and a crane 44 as a transfer device is moved along the cross beams 42. The crane 44 includes a horizontal rail 48 supported by a pair of cross beams 43, 43, and a main body 45 that moves on the horizontal rail 48. The main body 45 extends downward along a frame 46 and a chuck 47 along the frame. And a hoist (not shown) that moves up and down. The chuck 47 grips the flange or bottom surface of the load 30 and grips the flange 10 of the units 2, 12, and 22. Further, the chuck 47 can transfer a plurality of packages 30 and units 2, 12, and 22 without limitation to one. The luggage 30, the units 2, 12, and 22 held by the chuck 47 are accommodated in the frame 46 to prevent dropping or the like during conveyance. The crane 44 not only mounts the luggage 30 and the like on the floor surface of the placement section 41 to form a new stack, but also stacks one or more pieces of luggage 30 or the like on the upper part of the stack, or the upper part of the stack. 1 to a plurality of luggage 30 and the like can be taken out from the bag.

  The transfer device is not limited to the crane 44, but may be an overhead traveling vehicle, an unmanned forklift, or the like. However, the crane 44 and the overhead traveling vehicle are suitable for the transfer device in order to handle tall stacks 32 to 35 that require seismic isolation. ing. In addition, the crane 44 can transfer a load to the entire floor surface of the placement unit 41.

  The mounting unit 41 is preferably provided with a unit mounting unit 50 for mounting the units 2, 12, and 22 as stacks 51 to 53 for each unit type. If it does in this way, required unit 2,12,22 can be rapidly taken out from the unit mounting part 50 with the crane 44, and can be returned to the unit mounting part 50. FIG. 54 is a warehousing conveyor and 55 is a warehousing conveyor.

  A controller 56 is installed on the ground, for example, and controls the crane 44 and the conveyors 54 and 55. The controller 56 stores the position of the stack in the placement section 41, the total number of stages of the luggage and units 2, 12, and 22, and the types of the luggage and units 2, 12, and 22 of each stage. In addition, the controller 56 stores a shipping schedule, and in particular stores how many packages are scheduled to be shipped from which stack. At the time of warehousing into the stacking storage device 40, the number of parcels 30 to be stocked and the number of articles stored in them are input as warehousing data from a control panel (not shown) to the controller 56. For the package 30 that has been scheduled for delivery, the delivery schedule is also input at this time, and the controller 56 stores it.

  From the warehousing data and the availability of the loading unit 41, the controller 56 determines the position to store the warehousing so as to form a new stack, for example. Luggage to be stored on the existing stack may be added. In this way, the controller 56 can know the schedule of the height at which the stack is stacked, and can know the number of packages to be delivered from the stack. Then, the position where the units 2, 12, and 22 are arranged is determined according to the expected height of the stack, and the positions are corrected so that the units 2, 12, and 22 are not inserted between the packages to be delivered at once. To do.

  When the stacks 32 to 35 are delivered, the seismic isolation units 2 and 12 remain on the floor surface of the placement unit 41. Since the stack to be stored next is placed on the seismic isolation units 2, 12, the controller 56 has the seismic isolation units 2, 12 that do not carry the luggage 30 on the floor surface of the placement unit 41 in a predetermined range. It is preferred to control the crane 44 to be present.

  FIG. 8 shows processing related to the seismic isolation unit and the seismic control unit. Stack storage devices often store luggage of similar shape and size. As a result, it is the tall stacks that are prone to collapse in an earthquake, and the weight of the load itself does not have a significant effect. Therefore, the height H of the stack is compared with three kinds of reference values H1, H2, and H3, and the necessity of the unit and the position where it is arranged are determined. In addition, if a seismic isolation unit is placed between the floor of the loading section and the bottom package, it will be easy to enter and exit a plurality of packages at the same time, and the seismic isolation effect will be exerted on all packages. be able to.

  When the load is a container such as a bucket, the mass is not constant even if the stack is the same height. In the seismic isolation unit, a frictional force proportional to the gravity working from the load on the upper part is generated, and it is deformed while being braked by this frictional force during an earthquake. For this reason, the kind of seismic isolation unit is selected according to the mass M of the stack. Therefore, the seismic isolation unit 12 may be inserted in the lowermost stage, and the seismic isolation unit 2 may be inserted in the middle. However, the type of seismic isolation unit may be determined by the mass per stage of the load instead of the mass of the stack.

  In the embodiment, the height of the stack is H2 or more, and the seismic isolation unit is inserted in the middle. When a delivery is scheduled, how many packages are to be delivered at a time is scheduled, and these data are stored in a delivery scheduled file or the like. Therefore, the insertion position of the seismic isolation unit is shifted from the standard at the time of warehousing so that the seismic isolation unit is not inserted between the packages to be delivered at once.

  When the stack height is H3 or higher, a vibration control unit is inserted at the top. If more luggage is stacked on the seismic control unit, the possibility of collapsing will increase, so no more luggage will be stacked on the seismic control unit. Note that in a stack with a short storage period until delivery, it is not necessary to insert a vibration control unit to facilitate delivery. For stacks that are to be stored for long periods of time without adding or removing packages, seismic control units may be inserted at the top even if the height is less than H3.

  Rather than placing the seismic isolation units 2 and 12 and the luggage directly on the floor of the mounting portion 41, a pallet having a seismic isolation function (not shown) is laid, and the seismic isolation units 2 and 12 and the luggage are placed thereon. Also good. In the unit mounting portion 50, a pallet having a seismic isolation function may be laid on the floor, and the seismic isolation units 2 and 12 may be placed thereon.

2,12 Seismic isolation units 3, 4 Plate 5 Slider 6, 7 Sliding surface 8 Sliding material 9 Flange 13, 14 Plate 15 Plate 16 Rubber layer 22 Damping unit 23 Container 24 Upper member 25 Weight 26 Pin 27 Sliding Dynamic material 30 Luggage 31-35 Stack 40 Stack storage device 41 Placement part 42 Pillar 43 Horizontal girder 44 Crane (transfer device)
45 Horizontal moving part 46 Frame 47 Chuck 48 Horizontal rail 50 Unit placement part 51 to 53 Stack 54 Entry conveyor 55 Delivery conveyor 56 Controller

Claims (7)

A stacked body in which the luggage is stacked so that the bottom surface of the next luggage is placed on the upper surface of the luggage, and a loading section for storing the luggage in a flat stack, and the luggage is taken out from the upper portion of the stacked body and the luggage is placed on the upper portion of the stacked body A stack storage device comprising a transfer device that can be freely added, and a controller that controls the transfer device,
It is possible to stack with the load on the laminate, and has a shape that can be gripped by the transfer device , and has a seismic isolation / seismic control unit that exhibits a function of seismic isolation or seismic control during an earthquake,
The transfer device includes a chuck capable of gripping a load and the seismic isolation / seismic control unit,
The controller is configured to control the transfer device to stack the seismic isolation / seismic unit together with the load by transferring the seismic isolation / seismic unit and the load. A stack storage device. Further, the seismic isolation / seismic unit can be stacked and stored in a flat manner so that the bottom surface of the next seismic isolation / seismic unit is placed on the upper surface of the seismic isolation / seismic control unit , and the transfer device The stack storage device according to claim 1, further comprising: a unit mounting portion that allows the seismic isolation / seismic control unit to be carried in and out. It is characterized in that the seismic isolation / seismic control unit is arranged between a load and a load at an intermediate position in the height direction of the stack with respect to a stack having a predetermined height or more. The stack storage device according to claim 1 or 2.   The stack according to claim 3, wherein two or more seismic isolation / seismic units are stacked with a load on a stack having a predetermined height equal to or greater than a second predetermined value. Storage device. The stack according to any one of claims 1 to 4, wherein a seismic isolation unit is arranged between the floor surface of the mounting portion and a lowermost package of the laminate. Storage device.   The storage schedule of packages including the number of packages to be delivered collectively from one stack is stored, and the position of stacking the seismic isolation / seismic control units is determined while avoiding the space between packages delivered together. The stack storage device according to claim 1, wherein the controller is configured.   The stack storage according to any one of claims 1 to 6, wherein the controller is configured to include a plurality of types of seismic isolation units and to select the type of the seismic isolation unit according to the mass of the laminate. apparatus.

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