WO2014141905A1

WO2014141905A1 - Multi-tier shelf group, automated warehouse, and method for adding vibration suppression mechanism thereto

Info

Publication number: WO2014141905A1
Application number: PCT/JP2014/055115
Authority: WO
Inventors: 幸博川村
Original assignee: 西部電機株式会社
Priority date: 2013-03-13
Filing date: 2014-02-28
Publication date: 2014-09-18
Also published as: JP2016104653A

Abstract

A multi-tier shelf group (10) having two multi-tier shelves (12, 13) equipped with a plurality of storage spaces (11) in the height direction and positioned so as to have a gap interposed therebetween, wherein the two multi-tier shelves (12, 13) have different characteristic vibration frequencies, and the upper section of one multi-tier shelf (12) and the upper section of the other multi-tier shelf (13) are connected to one another by a damper member (21). As a result, it is possible to suppress an increase in the number of components necessary in order to improve vibration-suppression properties, in comparison, for example, to providing a damper member (21) in each of the storage spaces (11).

Description

Three-dimensional shelf group, automatic warehouse and method of adding vibration control mechanism

The present invention relates to a three-dimensional shelf group provided with two three-dimensional shelves having a plurality of storage spaces in the height direction, an automatic warehouse having the three-dimensional shelf group, and a method of adding a vibration control mechanism to the three-dimensional shelf. .

A three-dimensional shelf adopted in an automatic warehouse or the like has a plurality of storage spaces arranged in the height direction for the purpose of effective use of the space, and has a height exceeding, for example, 10 m. Therefore, when an earthquake occurs, depending on the magnitude of the shaking, there is a risk that the articles accommodated in the three-dimensional shelf will fall.
Therefore, some three-dimensional shelves are designed to prevent articles from falling, and specific examples are described in Patent Documents 1, 2, and 3.

Patent Document 1 discloses two examples of a three-dimensional shelf provided with a vibration control mechanism that suppresses shaking caused by an earthquake. In the first example, a structure arranged in the vicinity of the three-dimensional shelf and the three-dimensional shelf are connected by a damper member, and in the second example, a damper member is provided in each accommodation space.
Patent Document 2 discloses an example in which a vibration control means is provided on a fixed beam member that connects adjacent three-dimensional shelves to suppress shaking of the three-dimensional shelf, and Patent Document 3 discloses a brace and a floor surface with dampers. An example is described in which vibration damping properties are improved by connecting with members.

Japanese Patent Laid-Open No. 11-343013 JP 2003-165602 A JP 2010-203133 A

However, since the first example of Patent Document 1 is based on the assumption that there is a structure in the vicinity of the three-dimensional shelf, there is a problem that the vibration damping performance cannot be improved without such a structure. there were.
In addition, the second example of Patent Document 1 and the example of Patent Document 3 are not economical because many damper members are required. And also about the example of patent document 2, since the fixed beam member was required in addition to the vibration control means, the rise of the introduction cost was invited.
The present invention is made in view of such circumstances, and an object of the present invention is to provide a method for adding a three-dimensional shelf group, an automatic warehouse, and a vibration damping mechanism with improved vibration damping properties while suppressing an increase in the number of parts. And

The three-dimensional shelf group according to the first aspect of the present invention is a three-dimensional shelf group in which two three-dimensional shelves having a plurality of storage spaces in the height direction are arranged with a gap, and the two three-dimensional shelf groups are: The upper part of one of the three-dimensional shelves is connected to the upper part of the other three-dimensional shelf by a damper member.

In the three-dimensional shelf group according to the first invention, the two three-dimensional shelves have different natural frequencies due to a difference in rigidity between a specific member of one of the three-dimensional shelves and a specific member of the other three-dimensional shelf. preferable.

In the three-dimensional shelf group according to the first aspect of the present invention, the two three-dimensional shelves differ from each other by virtue of a solid shelf different from the two three-dimensional shelves being closely connected to one of the two three-dimensional shelves. Preferably it has a number.

The automatic warehouse according to the second aspect of the present invention is a space between a group of three-dimensional shelves in which two three-dimensional shelves having a plurality of storage spaces in the height direction are arranged with a gap, and the two three-dimensional shelves. In the automatic warehouse having the stacker crane provided in the gap, the two three-dimensional shelves have different natural frequencies, and the upper part of one of the three-dimensional shelves and the upper part of the other three-dimensional shelf are separated by a damper member. It is connected.

In the automatic warehouse according to the second aspect of the invention, an upper guide rail for guiding an upper portion of the stacker crane is provided, and the upper guide rail is attached to a fixed member that is cantilevered on one of the three-dimensional shelves. Is preferred.

In the automatic warehouse according to the second invention, it is preferable that the two three-dimensional shelves have different natural frequencies due to a difference in rigidity between the specific member of one of the three-dimensional shelves and the specific member of the other three-dimensional shelf. .

In the automatic warehouse according to the second invention, the two three-dimensional shelves are connected to one of the two three-dimensional shelves in close contact with each other so that the two three-dimensional shelves have different natural frequencies. It is preferable to have.

A method for adding a vibration damping mechanism according to the third invention in accordance with the above object is a method for adding a vibration damping mechanism in which a vibration damping mechanism is provided on two three-dimensional shelves arranged with a gap. The upper part of the shelf and the upper part of the other three-dimensional shelf are connected by a damper member.

In the method for adding the vibration control mechanism according to the third invention, a heavy object is attached to one of the three-dimensional shelves, and the natural frequency of one of the three-dimensional shelves is different from the natural frequency of the other three-dimensional shelf. Is preferred.

In the method for adding the vibration control mechanism according to the third invention, the accommodation pattern of the article is changed between one of the three-dimensional shelves and the other of the three-dimensional shelves, and the natural frequency of one of the three-dimensional shelves and the other of the three-dimensional shelves It is preferable to provide a difference in the natural frequency.

The method of adding the three-dimensional shelf group according to the first invention, the automatic warehouse according to the second invention, and the vibration control mechanism according to the third invention includes an upper part of one three-dimensional shelf and an upper part of the other three-dimensional shelf. Since the connection is made by the damper member, it is possible to suppress the increase in the number of parts as compared with the case where the damper member is provided in each accommodation space, and to improve the vibration damping performance.
In addition, the three-dimensional shelf group according to the first invention and the automatic warehouse according to the second invention have two natural shelves with different natural frequencies, so that the three-dimensional shelf group can reliably perform energy attenuation. It is possible to improve the vibration damping performance stably.

(A) and (B) are a front view and a side view of a three-dimensional shelf group according to an embodiment of the present invention, respectively. It is a top view of the same three-dimensional shelf group. It is a front view of the three-dimensional shelf group which concerns on a modification. (A) is explanatory drawing of the three-dimensional shelf group which concerns on Example 1, (B) is explanatory drawing of the three-dimensional shelf group which concerns on the comparative example 2. FIG. It is explanatory drawing of the three-dimensional shelf group which concerns on Example 2. FIG.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
As shown in FIGS. 1A, 1B, and 2, the three-dimensional shelf group 10 according to one embodiment of the present invention includes two three-

dimensional shelves

12, 13 each having a plurality of storage spaces 11 in the height direction. Are arranged facing each other with a gap. Details will be described below.

As shown in FIG. 1B, the three-dimensional shelf 12 (the same applies to the three-dimensional shelf 13) has a plurality of storage spaces 11 arranged vertically and horizontally. Each storage space 11 can store an article 14. In the present embodiment, the article 14 is put in and out of the storage space 11 in a state of being placed on a pallet 15.
A plurality of storage spaces 11 are horizontally arranged in a row in each step in the height direction of the three-dimensional shelf 12 (the same applies to the three-dimensional shelf 13).
Hereinafter, as shown in FIG. 2, a direction in which the plurality of storage spaces 11 are horizontally arranged in a row is referred to as a front-rear direction.

As shown in FIGS. 1A and 1B, the three-dimensional shelf 12 (same for the three-dimensional shelf 13) is also provided with a plurality of pillars 16 and a plurality of braces 17 for increasing the rigidity, and also for increasing the rigidity. A plurality of lattice materials 18 are provided.
As shown in FIG. 2, column members 16 are arranged at the four corners of the rectangular accommodation space 11 in plan view. The column members 16 adjacent to each other in the front-rear direction are connected by a horizontal member 19, and the column members 16 adjacent to the left and right are also connected by a horizontal member 19.
As shown in FIG. 1B, a plurality of receptacles 20 are fixed to each column member 16, and the receptacles 20 lower the pallets 15 stored in the accommodation space 11 with the articles 14 placed thereon. Support from.

As shown in FIG. 2, the three-dimensional shelf 12 has articles 14 loaded and unloaded from the right side close to the three-dimensional shelf 13, and a plurality of braces 17 shown in FIG. 1B are attached to the left side far from the three-dimensional shelf 13. Yes. On the other hand, in the three-dimensional shelf 13, articles 14 are put in and out from the left side close to the three-dimensional shelf 12, and a plurality of braces 17 are attached to the right side far from the three-dimensional shelf 12. Therefore, the brace 17 is arranged at a position where it does not become an obstacle to taking in and out the article 14.
In addition, as shown in FIG. 1A, the three-dimensional shelf 12 (the same applies to the three-dimensional shelf 13) is connected to the left and right columnar members 16 by a plurality of lattice materials 18 arranged obliquely. .

As shown in FIG. 1A and FIG. 2, the three-

dimensional shelves

12 and 13 arranged at intervals are arranged by a plurality of damper members 21 in which the upper part of the three-dimensional shelf 12 and the upper part of the three-dimensional shelf 13 are long to the left and right. It is connected.
Here, the column material 16 (specific member) of the three-dimensional shelf 12 and the column material 16 (specific member) of the three-dimensional shelf 13 are different in rigidity, so that the three-

dimensional shelves

12 and 13 have different natural frequencies. ing.
Therefore, in the three-dimensional shelf group 10 mainly composed of the three-

dimensional shelves

12 and 13 and the plurality of damper members 21, the vibration damping performance is reliably improved by the connection of the plurality of damper members 21 as compared to the case where there is no connection by the damper members 21. Designed.
In the present embodiment, one end and the other end of the damper member 21 are respectively connected to the three-

dimensional shelves

12 and 13 via the connecting members 22 that are vertically long, and each damper member 21 is positioned higher than the three-

dimensional shelves

12 and 13. It is arranged in.

In order to provide a difference between the natural frequencies of the two three-dimensional shelves, in addition to the method using two different three-dimensional shelves with different rigidity, a width between one three-dimensional shelf and the other three-dimensional shelf There are methods for setting different values for (length in the front-rear direction), depth (length in the left-right direction), or height. However, depending on the site where the three-dimensional shelf group is installed, the width, depth, or height of the three-dimensional shelf is specified, and these cannot be changed for seismic isolation. For these reasons, when it is necessary to make the width, depth, and height equal in the two three-dimensional shelves, a specific member is provided in the two three-dimensional shelves in providing a difference in the natural frequencies of the two three-dimensional shelves. It is effective to use a method having different rigidity.

In the gap between the three-

dimensional shelves

12, 13, a stacker crane 23 is provided that allows the articles 14 to be taken in and out of the storage spaces 11 of the three-

dimensional shelves

12, 13.
The stacker crane 23 advances and retreats while being guided by an upper guide rail 24 disposed along the front and rear and a lower guide rail 25 disposed along the front and rear. The upper guide rail 24 is attached to a plurality of fixing members 26 that are cantilevered by the three-dimensional shelf 12 corresponding to one of the three-

dimensional shelves

12 and 13 and is kept horizontal.
In FIG. 1B, the description of the damper member 21, the stacker crane 23, the connecting member 22, the upper guide rail 24, the lower guide rail 25, and the fixing member 26 is omitted, and in FIG. 2, the description of the stacker crane 23 is omitted. Omitted.

In the present embodiment, the fixing member 26 is a metal bar that is long to the left and right, but is not limited thereto. Further, the fixing member 26 is disposed below the damper member 21.
Here, the reason why the fixing members 26 are cantilevered and fixed to the three-dimensional shelf 12 is to prevent the three-

dimensional shelves

12 and 13 from being connected by a member other than the damper member 21. This is because even if the three-

dimensional shelves

12 and 13 are connected by the damper member 21, the vibration damping performance of the three-dimensional shelf group 10 is reduced by connecting the three-

dimensional shelves

12 and 13 with a member other than the damper member 21. Is.

As shown in FIG. 1A, the stacker crane 23 includes a support 27, a fork 28 attached to the support 27 so as to be movable up and down, left and right wheels 29 provided on the support 27, and a lower part of the support 27. And a wheel 30 provided on the vehicle.
The stacker crane 23 moves forward and backward by rolling the wheels 30 on the lower guide rail 25 by driving a motor (not shown) with the left and right wheels 29 in contact with the upper guide rail 24. The fork 28 is designed to support the pallet 15, and the pallet 15 can be taken in and out of the storage space 11.
An automatic warehouse 31 is mainly configured by the three-dimensional shelf group 10, the stacker crane 23, the upper guide rail 24, the lower guide rail 25, and the fixing member 26.

When the height of the three-

dimensional shelves

12 and 13 is H, the portions of the three-

dimensional shelves

12 and 13 at the height of 0.8H to 1.0H are connected by the damper member 21 via the connecting member 22.
This is because when the three-

dimensional shelves

12, 13 are connected by the damper member 21 below the 0.8H height position of the three-

dimensional shelves

12, 13, the vibration damping level of the three-dimensional shelf group 10 is significantly reduced. This is because it was confirmed by verification. In addition, connecting the portions of the three-

dimensional shelves

12 and 13 at the height of 0.8H to 1.0H with the damper member 21 attaches the damper member to other portions (for example, the lattice material 18 or the brace 17 is attached to the damper). It has been confirmed by various verifications that the vibration damping performance of the three-dimensional shelf group 10 can be improved more efficiently than by replacing the member.
In the present embodiment, the height position of 0.8H to 1.0H of the three-

dimensional shelves

12 and 13 is defined as the upper part of the three-

dimensional shelves

12 and 13.

Further, when the stacker crane 23 is arranged between the three-

dimensional shelves

12 and 13 as in the present embodiment, if the middle or lower stage of the three-

dimensional shelves

12 and 13 are connected by the damper member 21, the stacker crane 23 depends on the height of the stacker crane 23. The damper member 21 becomes an obstacle, and the advance / retreat operation of the stacker crane 23 is prevented. In order to prevent the damper member 21 from obstructing the forward / backward movement of the stacker crane 23, the stacker crane 23 needs to be designed low.
Here, the upper limit of the height at which the stacker crane 23 can lift the article 14 depends on the height of the stacker crane 23.
Therefore, connecting the height positions of 0.8H to 1.0H of the three-

dimensional shelves

12, 13 with the damper member 21 means that the high positions of the three-dimensional shelves 12, 13 (the height position of 0.8H to 1.0H). It is also effective in that the article 14 can be accommodated.

Here, in the three-dimensional shelf group 10, the two three-

dimensional shelves

12 and 13 are arranged at an interval, but one or both of the two three-dimensional shelves are separated from the two three-dimensional shelves. The three-dimensional shelf may be closely connected.
Hereinafter, the three-dimensional shelf group 40 in which another three-dimensional shelf is closely connected to one of the two three-dimensional shelves, and the automatic warehouse 41 including the three-dimensional shelf group 40 will be described. In the three-dimensional shelf group 40 and the automatic warehouse 41, the same components as those of the three-dimensional shelf group 10 and the automatic warehouse 31 are denoted by the same reference numerals as those of the three-dimensional shelf group 10 and the automatic warehouse 31, and detailed description thereof is omitted.

As shown in FIG. 3, the three-dimensional shelf group 40 includes two three-

dimensional shelves

42 and 43 whose upper parts are connected by the damper member 21 and two three-

dimensional shelves

44 and 45 whose upper parts are connected by the damper member 21. .
Each of the three-dimensional shelves 42 to 45 has the same configuration as that of the three-dimensional shelf 12 and the rigidity of each member is the same. Therefore, each of the three-dimensional shelves 42 to 45 has the same natural frequency.

In the three-dimensional shelves 42 to 45, the side on which the article 14 is put in and out by the stacker crane 23 is the front side and the opposite side is the back side, and the three-dimensional shelf 43 is closely connected to the back side of the three-dimensional shelf 44. ing.
The three-dimensional shelf 43 has a natural frequency different from that of the three-dimensional shelf 42 by being closely connected to the three-dimensional shelf 44, and the three-

dimensional shelves

44 and 45 have different natural frequencies for the same reason. ing.

Between the two three-

dimensional shelves

42 and 43 arranged with a gap with the front side facing each other, and between the two three-

dimensional shelves

44 and 45 arranged with the gap with the front side facing each other Between them, stacker cranes 23 are respectively provided.
The automatic warehouse 41 includes three-dimensional shelves 42 to 45 and two stacker cranes 23.

The three-dimensional shelf group having high vibration damping properties described so far can be newly installed, and can be formed by modifying an existing three-dimensional shelf that is not connected by a damper member.
Hereinafter, a method of adding a vibration suppression mechanism that provides a vibration suppression mechanism on an existing three-dimensional shelf will be described.

The method of adding the vibration control mechanism is to provide a vibration control mechanism on two three-dimensional shelves arranged with a gap. Specifically, the upper part of one of the three-dimensional shelves and the upper part of the other three-dimensional shelf are connected. Connect with multiple damper members.
When the natural frequencies of the two three-dimensional shelves are the same, a difference is provided between the natural frequency of one of the three-dimensional shelves and the natural frequency of the other three-dimensional shelf by attaching a heavy object to one of the three-dimensional shelves. Like that.

When the natural frequencies of the two three-dimensional shelves are the same, the accommodation pattern of the article is changed between the one three-dimensional shelf and the other three-dimensional shelf, and the natural frequency of one of the three-dimensional shelves and the natural vibration of the other three-dimensional shelf A difference may be provided in the number. For example, by storing articles from below in one three-dimensional shelf and storing articles from the middle in the other three-dimensional shelf, the two three-dimensional shelves have different natural frequencies.
In addition, when the natural frequency of two solid shelves differs, it is not necessary to attach a heavy article to one solid shelf, or to change the accommodation pattern of articles | goods by two solid shelves.

Next, examples carried out for confirming the effects of the present invention will be described.
In the three-dimensional shelf group 33 of the first embodiment, as shown in FIG. 4A, two three-dimensional shelves with different natural frequencies arranged at intervals are connected by a damper member 34. In each of the two three-dimensional shelves, two accommodation spaces are arranged in the front-rear direction, and ten accommodation spaces are arranged in the height direction. Each of the two three-dimensional shelves has a plurality of lattice materials, and the upper portion of one of the three-dimensional shelves and the upper portion of the other three-dimensional shelf are connected by three damper members 34 that are spaced apart from each other.

The three-dimensional shelf group 33 of Comparative Example 1 is obtained by replacing the three damper members 34 with metal bars with respect to the three-dimensional shelf group 33 of Example 1. Then, as compared with the three-dimensional shelf group 33 of the first embodiment, as shown in FIG. 4 (B), in addition to replacing the three damper members 34 with metal bars 35, the lattice material is used at three different height positions. Is replaced with a damper member 36 as a three-dimensional shelf group 37 of Comparative Example 2. The three-dimensional shelf group 37 of Comparative Example 2 includes three damper members 36 at the same height in each three-dimensional shelf, and has nine damper members 36 in total.

Tables 1 to 3 show the simulation results obtained by calculating the displacement of the storage space at each height and the acceleration of the displacement by the computing unit due to the shaking of the earthquake. Table 1 shows simulation results for the three-dimensional shelf group of Comparative Example 1, Table 2 shows simulation results for the three-dimensional shelf group 33 of Example 1, and Table 3 shows simulation results for the three-dimensional shelf group 37 of Comparative Example 2. It is. Tables 1 to 3 show the simulation results for one of the two three-dimensional shelves.

In Tables 1 to 3, the measured height indicates the simulation result for the number of storage spaces from the bottom. When the measurement height is N, the measurement height is the value for the Nth storage space from the bottom. Represents. RL indicates the top (highest part) of the three-dimensional shelf, and these are the same for Tables 4 and 5 described later.
The reduction rate (%) of the maximum displacement and the reduction rate (%) of the maximum acceleration in Table 2 are the reduction rates of Example 1 with respect to Comparative Example 1, and specific calculation formulas are respectively (the reduction rate of maximum displacement). ) = 1− (Maximum displacement of Example 1) / (Maximum displacement of Comparative Example 1) and (Maximum acceleration reduction rate) = 1− (Maximum acceleration of Example 1) / (Maximum acceleration of Comparative Example 1) ). The two reduction rates (%) in Table 3 are the reduction rates of Comparative Example 2 with respect to Comparative Example 1, and (reduction rate of maximum displacement) = 1− (maximum displacement of Comparative Example 2) / (Comparative Example) 1 (maximum displacement of 1), and (maximum acceleration reduction rate) = 1− (maximum acceleration of comparative example 2) / (maximum acceleration of comparative example 1).

From Table 2, Example 1 has a maximum displacement reduction rate of 36 to 65% with respect to Comparative Example 1, an average of about 45%, and a maximum acceleration reduction rate with respect to Comparative Example 1 of 6 to 32%. The average was about 19%. In this simulation, considering the vibration damping performance of the three-dimensional shelf required in the automatic warehouse, the average of the reduction rate of the maximum displacement is 20% or more and the average of the reduction rate of the maximum acceleration with respect to Comparative Example 1. The criterion of 10% or more was used as a criterion for sufficient vibration damping.
Therefore, it was confirmed that Example 1 can secure sufficient vibration damping properties.
On the other hand, in Comparative Example 2, the reduction rate of the maximum displacement with respect to Comparative Example 1 is 7 to 12%, the average is about 9%, and the reduction rate of the maximum acceleration with respect to Comparative Example 1 is 0 to 9%. The average was about 6%. Therefore, it was confirmed that although the comparative example 2 includes three times as many damper members as the first embodiment, sufficient vibration damping performance cannot be ensured.

Moreover, since simulation was performed also about Example 2 which connected another solid shelf closely to one of two solid shelves, the result is shown below.
As shown in FIG. 5, the three-dimensional shelf group 47 of the second embodiment includes four three-dimensional shelves 48 to 51, and each of the three-dimensional shelves 48 to 51 has ten storage spaces in the height direction.
The three-

dimensional shelves

48 and 49 arranged at intervals are connected by a damper member 52, and the three-

dimensional shelves

49 and 50 arranged closely are connected to each other, and the three-

dimensional shelves

50 and 51 arranged at intervals are arranged. Are connected by a damper member 52. The three-

dimensional shelves

48 and 49 have different natural frequencies, and the three-

dimensional shelves

50 and 51 also have different natural frequencies.

A comparative example in which the damper member 52 for connecting the three-

dimensional shelves

48 and 49 and the damper member 52 for connecting the three-

dimensional shelves

50 and 51 to the three-dimensional shelf group 47 of Example 2 are replaced with metal bars. 3 solid shelf groups.
Tables 4 and 5 show the simulation results for each of the three-dimensional shelves 48 to 51 in which the displacement of the storage space at each height due to the shaking of the earthquake and the acceleration of the displacement are calculated by the calculator.

The reduction rate (%) of the maximum displacement and the reduction rate (%) of the maximum acceleration shown in Table 5 are values of Example 2 with respect to Comparative Example 3, and specific calculation formulas thereof are shown in Table 2. Is the same.
From Table 5, in Example 2, the average of the reduction rate of the maximum displacement with respect to Comparative Example 3 was about 35%, and the average of the reduction rate of the maximum acceleration with respect to Comparative Example 3 was about 25%. Therefore, it was confirmed that Example 2 can also ensure sufficient vibration damping.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions and the like that do not depart from the gist are within the scope of the present invention.
For example, the specific member that makes the rigidity different between the one three-dimensional shelf and the other three-dimensional shelf is not limited to the pillar material, and the specific member may be a lattice material or a brace.

10: Three-dimensional shelf group, 11: Storage space, 12, 13: Three-dimensional shelf, 14: Article, 15: Pallet, 16: Column material, 17: Brace, 18: Lattice material, 19: Horizontal member, 20: Receiving tool , 21: damper member, 22: connecting member, 23: stacker crane, 24: upper guide rail, 25: lower guide rail, 26: fixed member, 27: support, 28: fork, 29, 30: wheel, 31: automatic Warehouse, 33: Three-dimensional shelf group, 34: Damper member, 35: Bar material, 36: Damper member, 37: Three-dimensional shelf group, 40: Three-dimensional shelf group, 41: Automatic warehouse, 42-45: Three-dimensional shelf, 47: Three-dimensional Shelf group, 48-51: Solid shelf, 52: Damper member

Claims

In the three-dimensional shelf group in which two three-dimensional shelves having a plurality of storage spaces in the height direction are arranged with a gap,
The three-dimensional shelf group, wherein the two three-dimensional shelves have different natural frequencies, and an upper portion of one of the three-dimensional shelf and an upper portion of the other three-dimensional shelf are connected by a damper member.
2. The three-dimensional shelf group according to claim 1, wherein the two three-dimensional shelves have different natural frequencies due to a difference in rigidity between a specific member of one of the three-dimensional shelves and a specific member of the other three-dimensional shelf. Three-dimensional shelf group.
3. The three-dimensional shelf group according to claim 1, wherein a solid shelf different from the two three-dimensional shelf is closely connected to one of the two three-dimensional shelves so that the two three-dimensional shelves have different natural frequencies. A three-dimensional shelf group characterized by comprising:
In an automatic warehouse having a three-dimensional shelf group in which two three-dimensional shelves having a plurality of storage spaces in the height direction are arranged with a gap, and a stacker crane provided in the gap between the two three-dimensional shelves ,
The two-dimensional shelf has different natural frequencies, and an upper part of one of the three-dimensional shelf and an upper part of the other three-dimensional shelf are connected by a damper member.
5. The automatic warehouse according to claim 4, wherein an upper guide rail for guiding an upper portion of the stacker crane is provided, and the upper guide rail is attached to a fixed member that is cantilevered on one of the three-dimensional shelves. A featured automatic warehouse.
The automatic warehouse according to claim 4 or 5, wherein the two three-dimensional shelves have different natural frequencies due to a difference in rigidity between a specific member of one of the three-dimensional shelves and a specific member of the other three-dimensional shelf. A featured automatic warehouse.
6. The automatic warehouse according to claim 4 or 5, wherein a three-dimensional shelf different from the two three-dimensional shelves is closely connected to one of the two three-dimensional shelves so that the two three-dimensional shelves have different natural vibrations. Automatic warehouse characterized by having a number.
It is an additional method of a vibration damping mechanism that provides a vibration damping mechanism on two three-dimensional shelves arranged with a gap,
A method of adding a vibration damping mechanism, wherein an upper portion of one of the three-dimensional shelves and an upper portion of the other three-dimensional shelf are connected by a damper member.
The method for adding a vibration control mechanism according to claim 8, wherein a heavy object is attached to one of the three-dimensional shelves, and a difference is provided between the natural frequency of one of the three-dimensional shelves and the natural frequency of the other three-dimensional shelf. A method for adding a characteristic vibration control mechanism.
9. The method for adding a vibration control mechanism according to claim 8, wherein the accommodation pattern of the article is changed between one of the three-dimensional shelves and the other of the three-dimensional shelves, and the natural frequency of one of the three-dimensional shelves and the characteristic of the other three-dimensional shelf. A method for adding a vibration control mechanism, characterized by providing a difference in frequency.