JP2017160032A - Shelf facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shelf facility in which earthquake countermeasure is suitably performed even when rear space of a storage shelf is narrow.SOLUTION: A shelf facility comprises: a first storage shelf 18(A) in which a plurality of pieces of first baggage storage having first baggage entrance in front are vertically arranged side by side; a second storage shelf 18(B) in which a plurality of pieces of second baggage storage having second baggage entrance in front are vertically arranged side by side, and rear face sides are faced to each other between the first storage shelf 18(A) and the second storage shelf 18(B); and a damping device 24 which is arranged between the first storage shelf 18(A) and the second storage shelf 18(B). The damping device 24 is given in which a fist tabular part 56 fixed to the first storage shelf 18(A) and a second tabular part 60 fixed to the second storage shelf 18(B) are arranged side by side in a plate thickness direction, and a viscoelastic body 64 is sandwiched between the first tabular part 56 and the second tabular part 60.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a shelf facility used in an automatic warehouse or the like.

  A shelf facility used in an automatic warehouse or the like usually includes a plurality of storage shelves in which a plurality of luggage storage units are arranged in the vertical and horizontal directions. In recent years, in this type of shelf equipment, an increasing number of cases where a damping device such as a hydraulic damper is added to a storage shelf as a countermeasure against earthquakes. For example, Patent Document 1 includes two storage shelves that are arranged with their rear surfaces facing each other, and a hydraulic damper that is disposed in the rear space of the storage shelf formed between the two storage shelves. A shelf facility is disclosed.

Japanese Patent Laying-Open No. 2005-081164

  As a result of studying the disclosure of Patent Document 1, the present inventor has come to recognize the following problems. The rear space of the storage shelf is usually a dead space. This rear space may be narrowed from the viewpoint of increasing the storage efficiency of the shelf equipment. In particular, in existing vibration control shelves, it is normal that the arrangement space for the vibration control device is not secured in advance, and this rear space often becomes narrow.

  The hydraulic damper of Patent Document 1 has a structure that attenuates vibration by expanding and contracting in the axial direction. The hydraulic damper is disposed obliquely with respect to the vertical plane in order to increase the amount of expansion and contraction in the axial direction. Under an environment where the rear space of the storage shelf is not sufficiently secured, it is difficult to dispose the hydraulic damper diagonally. In this case, the amount of expansion and contraction in the axial direction of the hydraulic damper is reduced, and there is a possibility that the damping effect by the hydraulic damper cannot be obtained sufficiently. For this reason, the shelf installation which can plan an earthquake countermeasure suitably also in such an environment is desired.

  This invention is made in view of such a subject, and the objective is to provide the shelf installation which can aim at an earthquake countermeasure suitably even when the back space of a storage shelf is narrow.

  A certain aspect of the present invention for solving the above problems is a shelf facility. The shelf facility according to the aspect includes a plurality of first luggage storage portions provided with a first luggage entrance at a front side, and the first storage shelves in which the plurality of first luggage storage portions are arranged in a vertical direction; (2) A plurality of second luggage storage portions having a front and rear baggage entrance and exit, wherein the plurality of second luggage storage portions are arranged in a vertical direction and face each other's rear surface side with the first storage shelf A second storage shelf disposed between the first storage shelf and the second storage shelf, wherein the vibration suppression device is connected to the first storage shelf. The first plate-shaped portion fixed to the second storage shelf and the second plate-shaped portion fixed to the second storage shelf are arranged in the thickness direction, and the first plate-shaped portion and the second plate-shaped portion A viscoelastic body is sandwiched between them.

  ADVANTAGE OF THE INVENTION According to this invention, even when the back space of a storage shelf is narrow, an earthquake countermeasure can be aimed at suitably.

It is a side view which shows the shelf installation of this embodiment. It is a top view which shows the shelf installation of this embodiment. It is a front view which shows the 1st storage shelf of this embodiment seen from the viewpoint Vp1 of FIG. It is an enlarged view of the vibration damping device of FIG. It is the sectional view on the AA line of FIG. 6A is a view of the viscoelastic body viewed from the same viewpoint as FIG. 4, and FIG. 6B is a view of the viscoelastic body viewed from the same viewpoint as FIG. 5. It is a figure which shows the state which the storage shelf of this embodiment has deform | transformed by the earthquake.

  Hereinafter, in the embodiment and the modification, the same reference numerals are given to the same components, and the duplicate description is omitted. In the drawings, for convenience of explanation, some of the components are omitted as appropriate, and the dimensions of the components are appropriately enlarged and reduced.

FIG. 1 is a side view showing a shelf facility 10 of the present embodiment.
The shelf facility 10 of this embodiment is used for an automatic warehouse 12. In addition to the shelf facility 10 having a plurality of storage shelves 18 serving as storage destinations, the automatic warehouse 12 includes a transport device 14 for transporting the packages.

FIG. 2 is a plan view showing the shelf facility 10.
As shown in FIGS. 1 and 2, the transport device 14 of this embodiment is a stacker crane. The transport device 14 can travel along a guide rail 16 laid along a left-right direction Y described later. The transport device 14 is configured to be able to deliver a package W between each of a plurality of package storage units 20 of a pair of storage shelves 18 described later.

  The shelf facility 10 includes a first shelf unit 22 (A), a second shelf unit 22 (B), and a vibration damping device 24. The shelf facility 10 of the present embodiment has one of the main features in the configuration related to the vibration damping device 24, but will be described first from the peripheral structure.

  The first shelf unit 22 (A) and the second shelf unit 22 (B) include many common components. Hereinafter, when distinguishing these common components, “first” and “second” are added to the beginning of the components, and “(A)” and “(B)” are added to the end of the reference numerals. The notation is attached. In addition, when these common components are collectively referred to without distinction, these notations are omitted.

  The first shelf unit 22 (A) has a pair of first storage shelves 18 (A) disposed on both the front and back sides of the traveling path 15 of the transport device 14 on the floor surface 26 of the building. The first storage shelf 18 (A) is an independent shelf that is fixed only to the floor surface 26 of the building and is not fixed to the ceiling or inner wall of the building.

FIG. 3 is a front view showing the first storage shelf 18 (A) viewed from the viewpoint Vp1 of FIG.
As shown in FIGS. 1 to 3, the first storage shelf 18 (A) has a plurality of first luggage storage portions 20 (A) for storing the luggage W. The first luggage storage unit 20 (A) is provided with a first luggage entrance 21 (A) on the front side for loading and unloading the luggage W. Here, the front side refers to the side where the traveling path 15 of the transport device 14 is present.

  The first storage rack 18 (A) has a plurality of first luggage storage portions 20 (A) aligned in the front-rear direction X and arranged in a plurality of stages in the vertical direction Z, and the left-right direction Y Are arranged in multiple rows. In this example, the first luggage storage portions 20 (A) are arranged in six rows in the vertical direction Z and in four rows in the left-right direction Y (see FIG. 3). Details of the first luggage storage unit 20 (A) will be described later.

  Hereinafter, a direction in which the first luggage storage portion 20 (A) is taken in and out through the first luggage entrance 21 (A) is referred to as a front-rear direction X. The positional relationship between the first storage rack 18 (A) and the vibration damping device 24 will be described using the left-right direction Y and the vertical direction Z in which the first luggage storage units 20 (A) are arranged in addition to the front-rear direction X. The front-rear direction X and the left-right direction Y are also horizontal directions orthogonal to each other, and the up-down direction Z is also a vertical direction.

  The first storage shelf 18 (A) includes a plurality of first struts 28 (A) and 30 (A), and a first connecting member 32 (A) in addition to the first luggage storage portion 20 (A) described above. The first lattice 34 (A). The first storage shelf 18 (A) is formed by using first bolts 28 (A), 30 (A), a first connecting member 32 (A), a first lattice 34 (A), etc. using bolts and nuts (not shown). The plurality of frame members are connected.

  The plurality of first struts 28 (A), 30 (A) have a pair of first struts 28 (A), 30 (A) provided at an interval in the front-rear direction. The pair of first support columns 28 (A) and 30 (A) includes a first front support column 28 (A) disposed on the front surface side of the first storage shelf 18 (A) and a first storage shelf 18 (A). 1st rear support | pillar 30 (A) arrange | positioned at a rear surface side is included. The plurality of first struts 28 (A) and 30 (A) are provided with a pair of first struts 28 (A) and 30 (A) as a set unit with a space left and right across a plurality of sets.

  The first connecting member 32 (A) is installed along the front-rear direction X between the pair of first support columns 28 (A), 30 (A). The first connecting material 32 (A) is constructed so as to straddle the first struts 28 (A) and 30 (A) of the pair of first storage shelves 18 (A).

  As shown in FIG. 1, the first lattice 34 (A) is disposed obliquely with respect to the horizontal plane, and is laid between the first front column 28 (A) and the first rear column 30 (A). The plurality of first lattices 34 (A) are arranged so as to be bent back and forth in a zigzag shape. The plurality of first lattices 34 (A) are connected to the first front strut 28 (A) and the first rear strut 30 (A) using bolts and nuts (not shown). The plurality of first lattices 34 (A) serve as first reinforcing members that increase the strength in the in-plane direction of the lateral frame surface constituted by the first front struts 28 (A) and the first rear struts 30 (A). Function.

  The first luggage storage unit 20 (A) includes a first placement unit 36 (A) and a first luggage entrance 21 (A). The first mounting portion 36 (A) is a pair of two protruding so as to protrude inward in the left-right direction Y from the opposed portions of the pair of first support columns 28 (A), 30 (A) adjacent in the left-right direction Y. It is provided and becomes a part for placing the luggage W. The first luggage entrance 21 (A) is formed on the front side of the first luggage storage unit 20 (A). The first baggage entrance / exit 21 (A) is for loading / unloading the baggage W when the baggage W is transferred between the transport device 14 and the first baggage storage unit 20 (A).

  The configuration of the first shelf unit 22 (A) has been mainly described so far, but the second shelf unit 22 (B) also has a configuration that is common to the first shelf unit 22 (A). Here, the common elements are listed after changing the notation of “first” at the beginning of the component to “second” and changing the notation of “(A)” at the end of the code to “(B)”. In other words, redundant description is omitted.

  The second shelf unit 22 (B) has a pair of second storage shelves 18 (B). The second storage shelf 18 (B) includes a plurality of second struts 28 (B) and 30 (B) and a second connecting member 32 (B) in addition to the plurality of second luggage storage portions 20 (B). , And second lattice 34 (B). The second luggage storage unit 20 (B) includes a second placement unit 36 (B) and a second luggage entry / exit 21 (B).

  As shown in FIGS. 1 and 2, the second storage shelf 18 (B) of the second shelf unit 22 (B) is opposed to the first storage shelf 18 (A) with the rear side facing each other. Arranged. A relatively narrow rear space 38 is formed between the first storage shelf 18 (A) and the second storage shelf 18 (B). As shown in FIG. 1, the front-rear dimension La along the front-rear direction X of the rear space 38 is set to be smaller than the front-rear dimension Lb along the front-rear direction X of the travel space 40 serving as the travel path of the transport device 14. Is done. The front-rear dimension Lb of the traveling space 40 is set to a size of, for example, about 1 m so that the transport device 14 can move. On the other hand, the front-rear dimension La of the rear space 38 is set to be as narrow as possible from the viewpoint of increasing the storage efficiency of the shelf facility 10, and is set to a size of about 15 cm, for example. The front-rear dimension La of the rear space 38 is set to a size equal to or less than half of the front-rear dimension Lb of the traveling space 40. Here, the traveling space 40 refers to a space formed between the pair of storage shelves 18 of the shelf unit 22.

FIG. 4 is an enlarged view of the vibration damping device 24 of FIG.
The first storage shelf 18 (A) described above includes the first intersection portion 42 (A) that constitutes the connection portion of the second lattice 34 (A), which is the second from the top, to the first rear column 30 (A). Have. In addition, the second storage shelf 18 (B) has a second intersection 42 (B) that constitutes a connection portion of the second lattice 34 (B), which is second from the top, to the second rear column 30 (B). Have. The second intersection 42 (B) is aligned in the vertical direction Z with respect to the first intersection 42 (A). Aligning the positions here means that the positions in the vertical direction of the first intersection 42 (A) and the second intersection 42 (B) are arranged so as to overlap at least partially or slightly apart. It is arranged to overlap each other.

5 is a cross-sectional view taken along line AA in FIG.
As shown in FIGS. 4 and 5, the first storage shelf 18 (A) described above further includes a first fixing member 44. The first fixing member 44 has a plate shape and serves as a fixing partner of a first plate-like portion 56 (described later) of the vibration damping device 24. A total of two first fixing members 44 are arranged on the left and right sides of the first rear column 30 (A), and bolts 46 and nuts 48 are used on both the left and right sides of the first rear column 30 (A). Fixed. The two first fixing members 44 are arranged so that a part thereof protrudes from the rear surface of the first rear column 30 (A) toward the second storage shelf 18 (B) (the right side in FIGS. 4 and 5). The The first fixing member 44 protrudes from the rear surface side of the first storage shelf 18 (A) toward the second storage shelf 18 (B).

  The second storage shelf 18 (B) further includes a second fixing member 50. The second fixing member 50 has a plate shape and serves as a fixing partner of a second plate-like portion 60 (described later) of the vibration damping device 24. A total of two second fixing members 50 are arranged on the left and right sides of the second rear column 30 (B), and bolts 52 and nuts 54 are used on both the left and right sides of the second rear column 30 (B). Fixed. The two second fixing members 50 are arranged so that a part thereof protrudes from the rear surface of the second rear column 30 (B) toward the first storage shelf 18 (A) side (left side in FIGS. 4 and 5). The The second fixing member 50 protrudes from the rear surface side of the second storage shelf 18 (B) toward the first storage shelf 18 (A).

Let us move on to the description of the vibration damping device 24.
The vibration damping device 24 is disposed in the rear space 38 between the first storage shelf 18 (A) and the second storage shelf 18 (B). The damping device 24 generates a damping force by deforming a viscoelastic body 64 having a damping property such as a damping rubber, and the damping force of the viscoelastic body 64 causes the first storage shelf 18 (A) and the second storage shelf 18 (A) and the second storage shelf 18 (A). It is a rubber damper that absorbs vibration energy generated in the storage shelf 18 (B).

  As shown in FIG. 5, the vibration damping device 24 includes a plurality of first plate-like parts 56, a plurality of first spacers 58, a plurality of second plate-like parts 60, a plurality of second spacers 62, and a plurality of Viscoelastic body 64.

  The plurality of first plate-like portions 56 are configured by separate plate materials. The 1st plate-shaped part 56 has the fixed end side part 56a fixed with respect to the 1st storage shelf 18 (A), and the free end side part 56b on the opposite side to the fixed end side part 56a. The fixed end side portion 56a of the present embodiment is a portion that is closer to the first storage shelf 18 (A) in the front-rear direction X, and the free end side portion 56b is connected to the first storage shelf 18 (A). On the other hand, it is a portion on the far side in the front-rear direction X. The plurality of first plate-like portions 56 are arranged in the plate thickness direction, and the first spacer 58 is sandwiched between the fixed end side portions 56a. The plurality of first plate-like portions 56 and the plurality of first spacers 58 are arranged so as to be alternately arranged in the thickness direction of the first plate-like portion 56.

  The plurality of first spacers 58 have a role of maintaining the interval between the plurality of first plate-like portions 56, and are configured using a hard metal material or the like to fulfill this role. The fixed end side portions 56a of the plurality of first plate-like portions 56 and the plurality of first spacers 58 are disposed between the protruding portions of the two first fixing members 44 from the first rear strut 30 (A), and these It is fixed by fastening a nut 68 to a bolt 66 that passes through the bolt. The plurality of first plate-like portions 56 are fixed via the two first fixing members 44 in the vicinity of the first intersection portion 42 (A) of the first rear column 30 (A). Here, “near” means being within a range of 20 cm from the first intersection 42 (A). However, it is not necessarily strictly within the range of 20 cm, and may be slightly larger than 20 cm.

  The plurality of second plate-like parts 60 are constituted by different plate materials. The 2nd plate-shaped part 60 has the fixed end side part 60a fixed with respect to the 2nd storage shelf 18 (B), and the free end side part 60b on the opposite side to the fixed end side part 60a. The fixed end side portion 60a of the present embodiment is a portion that is closer to the second storage shelf 18 (B) in the front-rear direction X, and the free end side portion 60b is connected to the second storage shelf 18 (B). On the other hand, it is a portion on the far side in the front-rear direction. The plurality of second plate-like portions 60 are arranged in the plate thickness direction, and the second spacer 62 is sandwiched between the fixed end side portions 60a. The plurality of second plate-like portions 60 and the plurality of second spacers 62 are arranged so as to be alternately arranged in the thickness direction of the second plate-like portion 60.

  The plurality of second spacers 62 have a role of maintaining the interval between the plurality of second plate-like portions 60, and are configured using a hard metal material or the like in order to fulfill this role. The fixed end side portions 60a of the plurality of second plate-shaped portions 60 and the plurality of second spacers 62 are disposed between the protruding portions of the two second fixing members 50 from the second rear strut 30 (B), and these It is fixed by fastening a nut 72 to a bolt 70 that passes through the bolt. The plurality of second plate-like parts 60 are fixed via the two second fixing members 50 in the vicinity of the second intersection part 42 (B) of the second rear column 30 (B). Here, “near” means being within 20 cm from the second intersection 42 (B). However, it is not necessarily strictly within the range of 20 cm, and may be slightly larger than 20 cm.

  The plurality of first plate-like portions 56 and the plurality of second plate-like portions 60 are alternately arranged in the plate thickness direction, and there is no adhesive between the first plate-like portion 56 and the second plate-like portion 60. The elastic body 64 is sandwiched. The vibration damping device 24 has a laminated structure in which the plate-like portions 56 and 60 and the viscoelastic body 64 are alternately laminated in the plate thickness direction. The arrangement direction (stacking direction) in which the first plate-like portion 56 and the second plate-like portion 60 are arranged is set to be a direction along the left-right direction Y of the shelf equipment 10. The vibration damping device 24 is arranged so that the viscoelastic bodies 64 are arranged in the left-right direction Y of the shelf facility 10.

6A is a view of the viscoelastic body 64 viewed from the same viewpoint as FIG. 4, and FIG. 6B is a view of the viscoelastic body 64 viewed from the same viewpoint as FIG. 5.
The viscoelastic body 64 is formed in a sheet shape having a rectangular shape with different side lengths of adjacent sides. The viscoelastic body 64 is sandwiched between the first plate-like portion 56 and the second plate-like portion 60 and is in an elastically deformed state, with reference to a predetermined long side length L1 and short side length L2. And having a thickness L3. This figure shows a state where the viscoelastic body 64 is elastically deformed. In the viscoelastic body 64 of the present embodiment, the long side direction (first side direction) along the side of the long side part is arranged along the vertical direction Z of the shelf facility 10, and the short side part along the side of the short side part. The side direction (second side direction) is arranged along the front-rear direction X of the shelf facility 10. The viscoelastic body 64 is formed in a sheet shape having a rectangular shape in which the side length L1 of the side facing both sides in the front-rear direction X is longer than the side length L2 of the side facing both sides of the vertical direction Z. Will be. The viscoelastic body 64 is adhered to the first plate-like portion 56 and the second plate-like portion 60 by an adhesion means such as vulcanization adhesion.

The operation of the above shelf facility 10 will be described.
FIG. 7 is a diagram illustrating a state where the storage shelf 18 of the shelf facility 10 is deformed due to the earthquake. In this figure, only the 1st storage shelf 18 (A) and the 2nd storage shelf 18 (B) which are adjacent to the front-back direction X are shown. Moreover, in this figure, only the position of the vibration damping device 24 when in a stationary state is shown. When horizontal vibration due to an earthquake is transmitted from the floor 26 to the storage shelf 18, the storage shelf 18 vibrates in the front-rear direction X and the left-right direction Y. The first storage shelf 18 (A) and the second storage shelf 18 (B) are deformed so that the relative position in the front-rear direction X is changed by the vibration in the front-rear direction X compared to when the first storage shelf 18 (A) and the second storage shelf 18 (B) are stationary. To do. Further, the first storage shelf 18 (A) and the second storage shelf 18 (B) change the relative position in the vertical direction Z as compared to when they are stationary due to the vibration in the front-rear direction X. Transforms into The change amount A of the relative position in the vertical direction Z between the first storage shelf 18 (A) and the second storage shelf 18 (B) is the first storage shelf 18 (A) or the second storage shelf 18 ( It becomes larger as it approaches the upper end of B).

  Due to the deformation of the first storage shelf 18 (A) and the second storage shelf 18 (B), the first plate-like portion 56 and the second plate-like portion 60 of the vibration damping device 24 shown in FIGS. The relative position changes in the left-right direction Y and the up-and-down direction Z also occurs between them, and as a result, the viscoelastic body 64 shears and deforms in the left-right direction Y and the up-and-down direction Z. The vibrational energy is attenuated by the shear deformation of the viscoelastic body 64, and the vibration of the first storage shelf 18 (A) and the second storage shelf 18 (B) is suppressed.

The effect of the above shelf equipment 10 is demonstrated.
Consider a case where a conventional hydraulic damper is arranged in the rear space 38 of the storage shelf 18. In this case, the hydraulic damper is difficult to be disposed obliquely with respect to the vertical plane under the environment where the rear dimension 38 (see FIG. 1) of the rear space 38 of the storage shelf 18 is small and the rear space 38 is narrow. Are arranged along the vertical direction Z. In this case, even if the relative position in the front-rear direction X is displaced between the first storage shelf 18 (A) and the second storage shelf 18 (B), the hydraulic damper is difficult to expand and contract in the axial direction, and is attenuated by the hydraulic damper. There is a risk that the effect cannot be obtained sufficiently.

  In this regard, according to the present embodiment, vibration energy can be attenuated if the viscoelastic body 64 of the vibration damping device 24 can be sheared. Therefore, the viscoelastic body 64 uses not only the change in the relative position in the vertical direction Z of the first storage shelf 18 (A) and the second storage shelf 18 (B) but also the change in the relative position in the front-rear direction X. Can be shear-deformed. For this reason, even in an environment where the rear space 38 is narrow, the vibration energy is effectively attenuated by using both the change in the relative position in the front-rear direction X and the change in the relative position in the vertical direction Z of each storage shelf 18. it can.

  In addition, the vibration damping device 24 can attenuate vibration energy by shear deformation of the viscoelastic body 64 sandwiched between the plurality of plate-like portions 56 and 60. Therefore, in order to obtain a damping effect, a long container in which a cylinder and a piston such as a hydraulic damper are combined is not necessary, and vibration energy can be attenuated while suppressing the occupied space of the vibration damping device 24.

  Further, in this embodiment, in order to increase the spring constant in the front-rear direction X of the viscoelastic body 64, the side length L1 of the side facing the front-rear direction X of the viscoelastic body 64 is increased as shown in FIG. Is set to be longer than the side length L2 of the side facing the vertical direction Z. Thereby, the damping force in the front-rear direction X of the viscoelastic body 64 is increased, and the vibration energy in the front-rear direction X of each storage shelf 18 can be attenuated more effectively.

  Under this structure, the spring constant in the front-rear direction X of the viscoelastic body 64 can be further increased by increasing the thickness L3 of the viscoelastic body 64 in the left-right direction Y. Under this structure, the spring constant in the front-rear direction X of the viscoelastic body 64 can also be increased by increasing the number of viscoelastic bodies 64 arranged in the left-right direction Y. Thus, even if the thickness L3 of the viscoelastic body 64 in the left-right direction Y is increased or the number thereof is increased, only the dimension in the left-right direction Y of the entire vibration damping device 24 is increased. The dimensions do not increase. Therefore, even in an environment where the rear space 38 is narrow, the damping force in the longitudinal direction X of the vibration damping device 24 can be easily increased, and the vibration energy in the longitudinal direction X of each storage shelf 18 can be attenuated more effectively. There are advantages.

  As described above, according to the vibration damping device 24 of the present embodiment, the damping effect can be easily enhanced even in an environment where the rear space 38 is narrow. Can be achieved.

  As a conventional earthquake countermeasure, there is a method in which a mass damper is disposed in the upper luggage storage portion 20 of the storage shelf 18. When this method is used, it is necessary to carry a heavy mass to the upper luggage storage unit 20, and there is a risk in installation work. Further, since the upper luggage storage unit 20 is occupied by the mass damper, the storage efficiency of the shelf facility 10 is reduced. In this regard, the vibration damping device 24 of the present embodiment is lighter than the mass damper, and therefore can be installed safely. Further, since the luggage storage unit 20 is not occupied, there is an advantage that earthquake countermeasures can be taken without affecting the storage efficiency of the shelf facility 10.

  As another earthquake countermeasure, there is a method of installing a hydraulic damper at the installation position of the lattice 34 of the storage shelf 18. When this method is applied to an existing storage shelf 18, the lattice 34 needs to be removed or cut by a cutting machine, resulting in an increase in the number of operations. In this regard, according to the present embodiment, even when applied to the existing storage shelf 18, there is an advantage that earthquake countermeasures can be taken without removing or cutting the lattice 34.

(X) Moreover, in this embodiment, the 1st plate-shaped part 56 of the damping device 24 is being fixed to the vicinity of the 1st intersection part 42 (A) of the 1st back support | pillar 30 (A). Excessive bending stress acts on the fixed position of the first plate-like portion 56 of the vibration damping device 24 with respect to the first rear column 30 (A) during an earthquake. In the first storage shelf 18 (A) of the present embodiment, the first lattice 34 (A) can effectively resist this bending stress. Therefore, there is an advantage that it is possible to resist an excessive bending stress acting on the first rear column 30 (A) without increasing the member strength of the first rear column 30 (A). For the same reason, the second plate-like portion 60 of the vibration damping device 24 is fixed in the vicinity of the second intersection portion 42 (B) of the second rear column 30 (B).

  In the above example, the example in which the side length L1 in the vertical direction Z of the viscoelastic body 64 is longer than the side length L2 in the front-rear direction X has been described. The side length L1 may be set to be shorter than the side length L2 in the front-rear direction X. This is to increase the spring constant in the vertical direction Z of the viscoelastic body 64. Thereby, the damping force in the vertical direction Z of the viscoelastic body 64 is increased, and the vibration in the vertical direction Z of each storage shelf 18 is easily suppressed. When using the vibration damping device 24 that satisfies such conditions, it is preferable to dispose the vibration damping device 24 near the upper end of each storage shelf 18. At the upper end of each storage shelf 18, the amount of relative displacement in the vertical direction Z of each storage shelf 18 is large, and the vibration in the vertical direction of each storage shelf 18 is effective by the damping device 24 due to the increase in the relative displacement amount. This is because it becomes easy to attenuate.

  In the above, the example of embodiment of this invention was demonstrated in detail. The above-described embodiments are merely specific examples for carrying out the present invention. The embodiments do not limit the technical scope of the present invention, and many modifications can be made without departing from the spirit of the invention defined in the claims. Moreover, the hatching given to the cross section of drawing does not limit the material of the hatched object.

  Although the vibration damping device 24 has been described as having an example of a laminated structure in which the plate-like portions 56 and 60 and the viscoelastic body 64 are alternately laminated in the thickness direction, only one viscoelastic body 64 may be provided. In this case, the single first plate-like portion 56 and the single second plate-like portion 60 are arranged in the plate thickness direction, and a single viscoelastic body 64 is sandwiched therebetween.

  The first plate-like portion 56 of the vibration damping device 24 is fixed to the first intersection 42 (A) of the first storage shelf 18 (A), and the second plate-like portion 60 is fixed to the second storage shelf 18 (B). The example fixed with respect to the 2nd intersection part 42 (B) of this was demonstrated. If the 1st plate-shaped part 56 is fixed with respect to the 1st storage shelf 18 (A) and the 2nd plate-shaped part 60 is fixed with respect to the 2nd storage shelf 18 (B), these concrete examples will be provided. The fixing destination is not particularly limited, and may be fixed to another location.

  Although the 1st plate-shaped part 56 of the damping device 24 demonstrated the example fixed to the 1st intersection part 42 (A) vicinity, from a viewpoint of obtaining the effect of the above-mentioned (X), it is the 1st intersection part. It may be fixed to 42 (A). Moreover, the 2nd plate-shaped part 60 of the damping device 24 may also be fixed to the 2nd intersection 42 (B) from a viewpoint of obtaining the effect of the above-mentioned (X).

  The reinforcing member has been described as an example of the lattice 34 disposed obliquely with respect to the horizontal plane between the front column 28 and the rear column 30, but along the front-rear direction X between the front column 28 and the rear column 30. It may be a tether that is installed horizontally.

DESCRIPTION OF SYMBOLS 10 ... Shelf equipment, 18 (A) ... 1st storage shelf, 18 (B) ... 2nd storage shelf, 20 (A) ... 1st luggage storage part, 20 (B) ... 2nd luggage storage part, 21 (A ) ... 1st luggage entry / exit, 21 (B) ... 2nd luggage entry / exit, 24 ... Damping device, 30 (A) ... 1st rear strut, 30 (B) ... 2nd rear strut, 34 (A) ... 1st Lattice (first reinforcing member), 34 (B) ... second lattice (second reinforcing member), 42 (A) ... first intersection point, 42 (B) ... second intersection point, 56 ... first plate-like portion 60 ... second plate-like part, 64 ... viscoelastic body.

Claims (2)

A first storage shelf having a plurality of first luggage storage portions provided on the front side with a first luggage entrance, wherein the plurality of first luggage storage portions are arranged vertically;
A plurality of second baggage storage portions provided at the front side of the second baggage doorway, wherein the plurality of second baggage storage portions are arranged in a vertical direction, and the rear surface side of the first baggage between the first storage racks A second storage shelf arranged to face each other;
A vibration damping device disposed between the first storage shelf and the second storage shelf,
In the vibration damping device, a first plate-like portion fixed to the first storage shelf and a second plate-like portion fixed to the second storage shelf are arranged in the plate thickness direction, and the first A shelf facility, wherein a viscoelastic body is sandwiched between one plate-like portion and the second plate-like portion. The first plate-like portion and the second plate-like portion are arranged in the left-right direction orthogonal to the front-rear direction and the up-down direction of the first storage shelf,
The shelf equipment according to claim 1, wherein the viscoelastic body is formed in a sheet shape in which a side facing the front-rear direction has a longer rectangular shape than a side facing the vertical direction.

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