JP5845707B2 - Automatic warehouse rack equipment - Google Patents

Description

  The present invention relates to a rack device for an automatic warehouse.

  A conventional rack device for an automatic warehouse includes a column member, a beam member, a brace member, and the like. In recent years, a technique for adding a damping element to a rack device has been proposed for such a rack device as an earthquake countermeasure (see Patent Document 1). In this rack apparatus, as a countermeasure against earthquakes, a vibration damping joint is arranged at a joint portion of the members.

JP 2003-118819 A

  In a conventional rack device of an automatic warehouse, as a countermeasure against an earthquake, a vibration control technique such as a vibration control joint has been introduced into the rack device. On the other hand, as another earthquake countermeasure, there is a technology for preventing the vibration itself during an earthquake from being transmitted to the rack device, that is, a seismic isolation technology. However, this seismic isolation technology has not been introduced into the conventional rack apparatus described above and is not taken into consideration.

  An object of the present invention is to introduce a seismic isolation mechanism into a rack device.

  Hereinafter, a plurality of modes will be described as means for solving the problems. These aspects can be arbitrarily combined as necessary.

  An automatic warehouse rack apparatus according to an aspect of the present invention is arranged in parallel with a path of a stacker crane. The rack device of an automatic warehouse includes a support and a seismic isolation mechanism. The support column has an upper shelf support column and a lower shelf support column. The upper shelf support columns are arranged side by side in a direction away from the route. The lower shelf support columns are arranged side by side in a direction away from the path below the upper shelf support columns. The seismic isolation mechanism is provided between the upper shelf support column and the lower shelf support column.

  In this case, since the seismic isolation mechanism is provided in the middle position in the vertical direction of the support column, that is, between the upper shelf support column and the lower shelf support column, when seismic force is input to the rack device, Interlayer displacement occurs between the rack device (upper rack device) arranged at the upper part and the rack device (lower rack device) arranged at the lower part of the seismic isolation mechanism. Then, the seismic energy input to the rack device is converted from kinetic energy to thermal energy by the seismic isolation mechanism. Thereby, the vibration itself at the time of an earthquake becomes difficult to be transmitted to a rack apparatus. That is, it is possible to improve the performance of the rack device against vibration during an earthquake.

  In particular, during an earthquake or the like, the interlayer displacement that occurs in the rack device is greater in the upper part than in the lower part. In consideration of this point, in this rack apparatus, the seismic isolation mechanism operates effectively in an earthquake or the like by providing the seismic isolation mechanism at an intermediate position, that is, between the upper shelf support column and the lower shelf support column. I am doing so.

  In the above rack apparatus, since the seismic isolation mechanism is simply installed between the upper rack apparatus and the lower rack apparatus, the seismic isolation mechanism can be easily incorporated into the rack apparatus. Further, simply installing a seismic isolation mechanism between the upper rack device and the lower rack device can effectively improve the performance of the rack device against vibration during an earthquake at low cost.

  In addition, after assembling the upper rack device and the lower rack device separately, the upper rack device is arranged above the lower rack device so that the seismic isolation mechanism is located between the upper rack device and the lower rack device. You can also. In this case, since the upper rack device and the lower rack device can be assembled in parallel, the construction period can be shortened.

  In general, in a rack apparatus, one side surface in a direction away from the path is provided with an opening for taking in and out articles. Further, the length in the direction away from the path is shorter (the aspect ratio is smaller) than the length in the path direction. For this reason, the articles placed on the rack device may fall out of the opening on the one side surface during an earthquake or the like. However, in this rack apparatus, by providing the seismic isolation mechanism as described above in the direction away from the path, it is possible to reliably prevent the articles from dropping from the rack apparatus.

  In the rack apparatus, the seismic isolation mechanism may include a first horizontal member, a second horizontal member, and a viscoelastic body. The first horizontal member connects the upper shelf support column. The second horizontal member is disposed below the first horizontal member and connects the lower shelf support column. The viscoelastic body is disposed between the first horizontal member and the second horizontal member, and connects the first horizontal member and the second horizontal member.

  In this case, in the seismic isolation mechanism, the viscoelastic body connects the first horizontal member and the second horizontal member between the first horizontal member and the second horizontal member. As a result, when seismic force is input to the rack device, the viscoelastic body is deformed due to the interlayer displacement generated between the upper rack device and the lower rack device. That is, when the interlayer displacement is repeatedly generated between the upper rack device and the lower rack device, the seismic energy input to the rack device is converted from kinetic energy to thermal energy by the viscoelastic body. Thereby, the vibration itself at the time of an earthquake becomes difficult to be transmitted to a rack apparatus. That is, it is possible to improve the performance of the rack device against vibration during an earthquake.

  In addition, the seismic isolation mechanism can be easily incorporated into the rack device simply by arranging the viscoelastic body between the first horizontal member and the second horizontal member. Furthermore, the performance of the rack apparatus with respect to vibration during an earthquake can be effectively improved at low cost simply by arranging a viscoelastic body between the first horizontal member and the second horizontal member.

In the rack apparatus, one of the first horizontal member and the second horizontal member may have a U-shaped cross section. Either one of the first horizontal member and the second horizontal member is disposed inside the one horizontal member.
In this case, one horizontal member is formed in a U-shaped cross section. For this reason, a seismic isolation mechanism can be easily assembled only by arrange | positioning the other horizontal member inside the one horizontal member which has a U-shaped cross section. Further, by arranging the other horizontal member inside one horizontal member having a U-shaped cross section, the upper rack device can be smoothly moved in the direction in which the horizontal member extends with respect to the lower rack device. Can do.

In the rack device, viscoelastic bodies are attached to the inner side surface of the one horizontal member and the outer side surface of the other horizontal member.
In this case, the one horizontal member is attached to the outer side of the other horizontal member by attaching the viscoelastic body to the inner side surface of the one horizontal member and the outer side surface of the other horizontal member. It can be supported on the top surface. As a result, when the upper rack device moves relative to the lower rack device while being supported by the lower rack device, energy can be reliably absorbed by the viscoelastic body.

In the rack device, the one horizontal member has a retaining portion. The retaining portion is for restricting the other horizontal member from coming out upward or downward.
In this case, since the one horizontal member has a retaining portion, even if vibration occurs in the vertical direction during an earthquake or the like, the other horizontal member is placed inside the one horizontal member. Can be securely held. Thus, the upper rack device can be reliably supported by the lower rack device, and when the upper rack device moves relative to the lower rack device, energy can be reliably absorbed by the viscoelastic body.

In the rack apparatus, the seismic isolation mechanism further includes a low friction member. The low friction member is attached to the one horizontal member or the other horizontal member, and is disposed between the one horizontal member and the other horizontal member in the vertical direction.
In this case, the low friction member is attached to the one horizontal member or the other horizontal member between the one horizontal member and the other horizontal member in the vertical direction. One horizontal member can be smoothly moved with respect to the other horizontal member.

  In the automatic warehouse rack device according to the present invention, a seismic isolation mechanism can be introduced.

The figure which looked at the automatic warehouse which concerns on this embodiment in the path | route direction of a stacker crane. It is the figure which looked at the automatic warehouse concerning this embodiment from the upper part. It is a disassembled perspective view of the seismic isolation mechanism of the rack apparatus which concerns on this embodiment. It is sectional drawing of the seismic isolation mechanism of the rack apparatus which concerns on this embodiment. It is sectional drawing of the seismic isolation mechanism of the rack apparatus which concerns on other embodiment.

(1) Overall Outline of Rack Device of Automatic Warehouse and Explanation of Each Configuration FIG. 1 is a view of the automatic warehouse as viewed in the direction of the stacker crane 100 path. FIG. 2 is a view of the automatic warehouse as viewed from above. FIG. 3 is an enlarged view of the lower end portion of the rack device 1.
Note that the path direction (traveling direction) of the stacker crane 100 corresponds to the vertical direction in FIG. Further, the direction away from the path of the stacker crane 100 (front-rear direction, depth direction) corresponds to the left-right direction in FIG.

  The automatic warehouse mainly includes a stacker crane 100 and a rack device 1. The stacker crane 100 travels in an automatic warehouse. The stacker crane 100 conveys the article and places the article on the load receiving shelf 25 of the rack device 1. Rack devices 1 are arranged on both sides of the stacker crane 100.

  The rack apparatus 1 is for storing articles. The rack device 1 includes a rack device body 2 and a seismic isolation mechanism 5. The rack apparatus main body 2 includes a lower rack apparatus main body 11 and an upper rack apparatus main body 12. The lower rack apparatus main body 11 and the upper rack apparatus main body 12 include a support column 20, a cargo receiving shelf portion 25, and a brace 23. Here, since the main configurations of the lower rack apparatus main body 11 and the upper rack apparatus main body 12 are the same, the same is applied to the receiving rack 25 and the brace 23 in the lower rack apparatus main body 11 and the upper rack apparatus main body 12. It is numbered.

  The column 20 includes a plurality of lower shelf columns 21 and a plurality of upper shelf columns 22. In the lower rack apparatus main body 11, a plurality of lower shelf columns 21 are arranged on the floor surface FL. Further, in the upper rack apparatus main body 12, the upper shelf column 22 is disposed above the lower shelf column 21. Here, the support columns 21 and 22 arranged on the side close to the stacker crane 100 are referred to as first support columns 21a and 22a (first lower shelf support column and first upper shelf support column). Further, the columns 21 and 22 arranged on the side away from the stacker crane 100 are referred to as second columns 21b and 22b (second lower shelf columns and second upper shelf columns).

  The first lower shelf support column 21a and the first upper shelf support column 22a are arranged side by side in the path direction. The second lower shelf support column 21b and the second upper shelf support column 22b are arranged side by side in the path direction. Further, the first lower shelf support column 21a and the first upper shelf support column 22a, and the second lower shelf support column 21b and the second upper shelf support column 22b correspond one-on-one in a direction orthogonal to the path. Are arranged side by side.

  The goods receiving shelf 25 is a part on which articles are placed. In the lower rack apparatus main body 11 and the upper rack apparatus 12, the receiving rack 25 is provided between the first lower shelf column 21a and the second lower shelf column 21b, and between the first upper shelf column 22a and the second rack unit column 21a. Between the upper shelf columns 22b. Here, the plurality of cargo receiving shelf portions 25 are mounted on the columns 21a, 22a, 21b, and 22b at intervals in the height direction.

  In the lower rack apparatus main body 11 and the upper rack apparatus 12, the brace 23 includes a back brace 23a and a side brace 23b. The back braces 23a are arranged between the adjacent second lower shelf columns 21b and between the adjacent second upper shelf columns 22b. The side braces 23b are arranged between the first lower shelf support column 21a and the second lower shelf support column 21b and between the first upper shelf support column 22a and the second upper shelf support column 22b. ing.

  The seismic isolation mechanism 5 is a mechanism that makes it difficult to transmit the vibration itself at the time of the earthquake to the rack device 1. In this seismic isolation mechanism 5, the force acting on the rack device 1 during an earthquake is reduced. The seismic isolation mechanism 5 is disposed between the lower rack device main body 11 and the upper rack device main body 12, and absorbs energy when an interlayer displacement occurs between the lower rack device main body 11 and the upper rack device main body 12. To do. Details of the seismic isolation mechanism 5 will be described below.

(2) Description of Seismic Isolation Mechanism FIG. 3 is an exploded perspective view of the seismic isolation mechanism 5 of the rack device 1. FIG. 4 is a cross-sectional view of the rack apparatus according to the present embodiment.
As shown in FIGS. 3 and 4, the seismic isolation mechanism 5 is provided at an intermediate position in the vertical direction of the support column 20 (21, 22). In other words, the seismic isolation mechanism 5 is provided between the lower rack device main body 11 and the upper rack device main body 12.

  The seismic isolation mechanism 5 includes a first horizontal member 51, a second horizontal member 52, a viscoelastic body 53, and a low friction member 54.

  The first horizontal member 51 connects the adjacent upper shelf columns 22. Specifically, the first horizontal member 51 connects the lower end of the first upper shelf support 22a and the lower end of the second upper shelf support 22b. More specifically, the lower end portion of the first upper shelf column 22a is fixed to the upper surface of one end of the first horizontal member 51, and the second upper shelf column 22b is fixed to the upper surface of the other end of the first horizontal member 51. The lower end of is fixed.

  The first horizontal member 51 has a U-shaped cross section that is open at the bottom. The first horizontal member 51 is disposed outside the second horizontal member 52. Specifically, the first horizontal member 51 includes a pair of wall portions 51a that face each other, a connecting portion 51b that connects the pair of wall portions 51a, and an opening formed integrally with an end portion of the one wall portion 51a. It has the stop part 51c and the movement control part 51d formed in the wall part 51a. The connecting portion 51 b faces the upper surface of the second horizontal member 52. The pair of wall portions 51 a faces the side surface of the second horizontal member 52.

  The retaining portion 51c is for restricting the second horizontal member 52 from coming out downward. The retaining portion 51 c is disposed below the second horizontal member 52. The movement restricting portion 51 d is for restricting the movement of the first horizontal member 51 relative to the second horizontal member 52. The movement restricting portion 51d is, for example, a long hole that extends in the axial direction of the first horizontal member 51 (the axial direction of the second horizontal member 52). The length of the long hole (the length in the axial direction) corresponds to the allowable movement amount of the first horizontal member 51 relative to the second horizontal member 52.

  The second horizontal member 52 connects the adjacent lower shelf columns 21. Specifically, the second horizontal member 52 connects the upper end portion of the first lower shelf support column 21a and the upper end portion of the second lower shelf support column 21b. More specifically, the upper end of the first lower shelf column 21 a is fixed to the lower surface of one end of the second horizontal member 52, and the second lower shelf is mounted on the lower surface of the other end of the second horizontal member 52. The upper end of the column 21b is fixed.

  The second horizontal member 52 has a rectangular cross section. The second horizontal member 52 is disposed below the first horizontal member 51. Specifically, the second horizontal member 52 has the upper surface facing the connecting portion 51b, the side surface facing the wall portion 51a, and at least a part of the lower surface facing the retaining portion 51c. Placed inside.

  Further, the second horizontal member 52 is formed with an engaging portion 52a that engages with the movement restricting portion 51d. The engaging portion 52 a is attached to the side surface of the second horizontal member 52. The engaging part 52a is formed in a pin shape, for example. The engaging portion 52 a is disposed inside the long hole (movement restricting portion 51 d) of the first horizontal member 51. For this reason, when the engaging part 52a is located inside the elongated hole, the first horizontal member 51 moves on the second horizontal member 52. On the other hand, when the engaging part 52a contacts the inner edge part of the long hole, the first horizontal member 51 stops. Thus, the long hole (movement restricting portion 51d) of the first horizontal member 51 and the engaging portion 52a of the second horizontal member 52 function as a stopper.

  The viscoelastic body 53 converts kinetic energy into heat energy. The viscoelastic body 53 is disposed between the first horizontal member 51 and the second horizontal member 52, and connects the first horizontal member 51 and the second horizontal member 52. Specifically, the viscoelastic body 53 is formed in a rectangular plate shape. A plurality of viscoelastic bodies 53 are attached to the first horizontal member 51 and the second horizontal member 52 at a predetermined interval in the axial direction of the second horizontal member 52. The viscoelastic body 53 is attached to the inner surface of the wall portion 51a of the first horizontal member 51 and the side surface of the second horizontal member 52 facing the inner surface of the wall portion 51a.

  In this state, when the first horizontal member 51 moves on the second horizontal member 52, the viscoelastic body 53 undergoes shear deformation and absorbs energy. The viscoelastic body 53 is also means for pulling back the first horizontal member 51 moved on the second horizontal member 52 to the position (initial position) before the rack device 1 is moved by elastic force. When the rack apparatus 1 is located at the initial position, the viscoelastic body 53 is in a state where the viscoelastic body 53 is not distorted.

  The low friction member 54 is formed in a rectangular plate shape. The low friction member 54 is attached to the upper surface of the second horizontal member 52. When the second horizontal member 52 is disposed inside the first horizontal member 51 in this state, the low friction member 54 comes into contact with the inner upper surface of the first horizontal member 51. That is, in this state, the low friction member 54 is disposed between the first horizontal member 51 and the second horizontal member 52.

  The low friction member 54 is made of a material having low sliding resistance. The low friction member 54 is made of, for example, ultra high molecular weight polyethylene. By bringing the low friction member 54 as described above into contact with the inner upper surface of the first horizontal member 51, the first horizontal member 51 can easily slide on the upper portion of the second horizontal member 52.

(3) Effects of Embodiment (A) The rack device 1 of the automatic warehouse is arranged in parallel with the path of the stacker crane 100. The automatic warehouse rack device 1 includes a support column 20 and a seismic isolation mechanism 5. The support column 20 includes an upper shelf support column 22 and a lower shelf support column 21. The upper shelf columns 22 are arranged side by side in a direction away from the path of the stacker crane 100. The lower shelf columns 21 are arranged side by side in a direction away from the path of the stacker crane 100 below the upper shelf columns 22. The seismic isolation mechanism 5 is provided between the upper shelf column 22 and the lower shelf column 21.

  In this case, since the seismic isolation mechanism 5 is provided at an intermediate position in the vertical direction of the column 20, that is, between the upper shelf column 22 and the lower shelf column 21, when a seismic force is input to the rack device 1. Between the upper rack apparatus main body 12 and the lower rack apparatus main body 11, an interlayer displacement occurs. Then, the seismic energy input to the rack device 1 is converted from kinetic energy to thermal energy by the seismic isolation mechanism 5. Thereby, vibration itself at the time of an earthquake becomes difficult to be transmitted to the rack apparatus 1. That is, it is possible to improve the performance of the rack device 1 against vibration during an earthquake.

  In particular, during an earthquake or the like, the interlayer displacement generated in the rack apparatus 1 is larger in the upper part than in the lower part. In consideration of this point, in the rack device 1, the seismic isolation mechanism 5 is provided at an intermediate position, that is, between the upper shelf support 22 and the lower shelf support 21, so that the seismic isolation mechanism 5 can be used in an earthquake or the like. To work effectively.

  In the present rack apparatus 1, since the seismic isolation mechanism 5 is only installed between the upper rack apparatus main body 12 and the lower rack apparatus main body 11, the seismic isolation mechanism 5 can be easily incorporated into the rack apparatus 1. Further, by simply installing the seismic isolation mechanism 5 between the upper rack apparatus main body 12 and the lower rack apparatus main body 11, the performance of the rack apparatus 1 against vibration during an earthquake can be effectively improved at low cost. .

  Alternatively, the upper rack device main body 12 and the lower rack device main body 11 can be assembled separately, and then the upper rack device main body 12 can be disposed on the lower rack device main body 11 via the seismic isolation mechanism 5. In this case, since the upper rack apparatus main body 12 and the lower rack apparatus main body 11 can be assembled in parallel, the construction period can be shortened.

  In general, in the rack device 1, an opening is provided on one side surface in a direction away from the path in order to take in and out articles. Further, the length in the direction away from the path is shorter (the aspect ratio is smaller) than the length in the path direction. For this reason, the articles placed on the rack device 1 may fall out of the opening on the one side surface during an earthquake or the like. However, in the present rack apparatus 1, by providing the seismic isolation mechanism 5 as described above in the direction away from the path, it is possible to reliably prevent the articles from dropping off from the rack apparatus 1.

(B) In the rack apparatus 1 of an automatic warehouse, the seismic isolation mechanism 5 includes a first horizontal member 51, a second horizontal member 52, and a viscoelastic body 53. The first horizontal member 51 connects the upper shelf column 22. The 2nd horizontal member 52 is arrange | positioned under the 1st horizontal member 51, and connects the support | pillar 21 for lower shelves. The viscoelastic body 53 is disposed between the first horizontal member 51 and the second horizontal member 52, and connects the first horizontal member 51 and the second horizontal member 52.

  In this case, in the seismic isolation mechanism 5, the viscoelastic body 53 connects the first horizontal member 51 and the second horizontal member 52 between the first horizontal member 51 and the second horizontal member 52. Thereby, when seismic force is input to the rack device 1, the viscoelastic body 53 is deformed by the interlayer displacement generated between the upper rack device body 12 and the lower rack device body 11. That is, when the interlayer displacement is repeatedly generated between the upper rack apparatus main body 12 and the lower rack apparatus main body 11, the seismic energy input to the rack apparatus 1 is converted from kinetic energy to thermal energy by the viscoelastic body 53. The Thereby, vibration itself at the time of an earthquake becomes difficult to be transmitted to the rack apparatus 1. That is, it is possible to improve the performance of the rack device 1 against vibration during an earthquake.

  Further, the seismic isolation mechanism 5 can be easily incorporated into the rack apparatus 1 simply by arranging the viscoelastic body 53 between the first horizontal member 51 and the second horizontal member 52. Furthermore, the performance of the rack apparatus 1 with respect to vibration during an earthquake can be effectively improved at low cost simply by disposing the viscoelastic body 53 between the first horizontal member 51 and the second horizontal member 52. .

(C) In the rack device 1 of the automatic warehouse, the first horizontal member 51 has a U-shaped cross section. The second horizontal member 52 is disposed inside the first horizontal member 51.
In this case, since the first horizontal member 51 is formed in a U-shaped cross section, the seismic isolation mechanism 5 can be easily assembled only by arranging the second horizontal member 52 inside the first horizontal member 51. . In addition, the second horizontal member 52 is disposed inside the first horizontal member 51 having a U-shaped cross section so that the upper horizontal rack device main body 12 can be connected to the lower rack device main body 11 so that the second horizontal member 52 is It can be moved smoothly in the extending direction.

(D) In the rack apparatus 1 of an automatic warehouse, the viscoelastic body 53 is attached to the inner surface of the first horizontal member 51 and the outer surface of the second horizontal member 52.
In this case, for example, the first horizontal member 51 is attached to the outer upper surface of the second horizontal member 52 by attaching the viscoelastic body 53 to the inner surface of the first horizontal member 51 and the outer surface of the second horizontal member 52. Can be supported. Thereby, when the upper rack apparatus main body 12 moves relative to the lower rack apparatus main body 11 while being supported by the lower rack apparatus main body 11, energy can be reliably absorbed by the viscoelastic body 53.

(E) In the rack device 1 of an automatic warehouse, the first horizontal member 51 has a retaining portion 51c. The retaining portion 51c is for restricting the second horizontal member 52 from coming out upward or downward.
In this case, since the first horizontal member 51 has the retaining portion 51c, the second horizontal member 52 can be securely placed inside the first horizontal member 51 even if vibration occurs in the vertical direction during an earthquake or the like. Can be held. Thus, the upper rack device main body 12 can be reliably supported by the lower rack device main body 11, and when the upper rack device main body 12 moves relative to the lower rack device main body 11, energy is reliably ensured by the viscoelastic body 53. Can be absorbed.

(F) In the rack device 1 of an automatic warehouse, the seismic isolation mechanism 5 further includes a low friction member 54. The low friction member 54 is attached to the second horizontal member 52 and is disposed between the first horizontal member 51 and the second horizontal member 52 in the vertical direction.
In this case, since the low friction member 54 is attached to the second horizontal member 52 between the first horizontal member 51 and the second horizontal member 52 in the vertical direction, the first horizontal member 51 is replaced with the second horizontal member 52. However, it can be moved smoothly.

(4) Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, a plurality of embodiments and modifications described in this specification can be arbitrarily combined as necessary.

(A) In the above embodiment, an example in which the first horizontal member 51 has a U-shaped cross section has been described. However, the second horizontal member 52 may have a U-shaped cross section. In this case, the first horizontal member 51 has the same configuration as the second horizontal member 52 of the embodiment, and the second horizontal member 52 has the same configuration as the first horizontal member 51 of the embodiment. That is, the 1st horizontal member 51 is formed inside the 2nd horizontal member 52 which is formed, for example in a rectangular shape and has a U-shaped cross section. Even if comprised in this way, the effect similar to the above can be acquired.

(B) Although the low friction member 54 is mounted on the second horizontal member 52 in the above embodiment, the low friction member 54 may be mounted on the first horizontal member 51. For example, in the above embodiment, the low friction member 54 may be attached to the inner upper surface of the first horizontal member 51 (the inner surface of the connecting portion 51b) without being attached to the second horizontal member 52. Even if comprised in this way, the effect similar to the above can be acquired.

(C) In the above embodiment, an example in which the movement of the first horizontal member 51 relative to the second horizontal member 52 is restricted by the movement restricting portion 51d and the engaging portion 52a has been described. The movement of the first horizontal member 51 relative to the second horizontal member 52 may be restricted by force. In this case, the movement restricting portion 51d and the engaging portion 52a may not be provided on the first horizontal member 51 and the second horizontal member 52. Even if comprised in this way, the effect similar to the above can be acquired.

(D) In the said embodiment, although the example in case the seismic isolation mechanism 5 was arrange | positioned between the upper rack apparatus main body 12 and the lower rack apparatus main body 11 was shown, the arrangement position of the seismic isolation mechanism 5 is the support | pillar 20 As long as it is an intermediate position in the vertical direction, the present invention is not limited to the above embodiment, and any method may be used.

  For example, as shown in FIG. 5, the seismic isolation mechanism 5 may be provided in the rack apparatus body 2. In this case, the seismic isolation mechanism 5 includes a frame 150, a first horizontal flange 151 (corresponding to the first horizontal member 51 in the embodiment), and a second horizontal flange 152 (in the second horizontal member 52 in the embodiment). Correspondence), a viscoelastic body 153, and a low friction member 154.

  The frame 150 is formed in a rectangular box shape. The frame 150 has an upper hole 150a and a lower hole 150b. The frame 150 is fixed to the lower shelf column 21 with the lower hole 150b abutting against the upper outer surface of the lower column column 21. The first horizontal flange 151 is formed in a rectangular plate shape. The upper shelf support 22 is inserted into the upper hole 150 a of the frame 150, and the first horizontal flange 151 is fixed to the lower end of the upper shelf support 22. The second horizontal flange 152 is formed in a rectangular plate shape, and is fixed to the upper end of the lower shelf column 21. The lower surface of the second horizontal flange 152 is fixed to the inner lower surface of the frame 150. The viscoelastic body 153 is disposed between the first horizontal member 51 and the second horizontal member 52 and is attached to the first horizontal member 51 and the second horizontal member 52. The low friction member 154 is attached to the upper surface of the first horizontal flange 151.

  Thereby, when the seismic force is input to the rack device 1, the viscoelastic body 153 is deformed due to the interlayer displacement generated between the upper shelf column 22 and the lower shelf column 21. That is, when the interlayer displacement is repeatedly generated between the upper shelf column 22 and the lower shelf column 21, the seismic energy input to the rack device 1 is converted from kinetic energy to thermal energy by the viscoelastic body 153. . Thus, also in this rack apparatus 1, the performance of the rack apparatus 1 with respect to the vibration at the time of an earthquake can be improved similarly to the said embodiment. Even if comprised in this way, the effect similar to the above can be acquired.

  The present invention can be widely applied to rack devices in automatic warehouses.

DESCRIPTION OF SYMBOLS 1 Rack apparatus 2 Rack apparatus main body 5 Seismic isolation mechanism 11 Lower rack apparatus main body 12 Upper rack apparatus main body 20 Support column 21 Lower shelf support column 21a First lower shelf support column 21b Second lower shelf support column 22 Upper shelf support column 22a First 1 upper shelf support 22b second upper shelf support 23 brace 23a back brace 23b side brace 25 load receiving shelf 51 first horizontal member 51a wall 51b connecting portion 51c retaining portion 51d movement restricting portion 52 second horizontal member 52a Joint portion 53 Viscoelastic body 54 Low friction member 100 Stacker crane 150 Frame body 151 First horizontal flange 152 Second horizontal flange 153 Viscoelastic body (another embodiment)
154 Low friction member (other embodiment)

Claims (5)

An automatic warehouse rack device arranged in parallel with the path of the stacker crane,
A column having upper shelf columns arranged side by side in a direction away from the route, and a column lower column arranged below the upper shelf column and arranged in a direction away from the route,
A seismic isolation mechanism provided between the upper shelf column and the lower shelf column;
Equipped with a,
The seismic isolation mechanism is
A first horizontal member having one end connected to the lower end of the first upper shelf column and the other end connected to the lower end of the second upper shelf column adjacent to the first upper column;
The second lower shelf support column disposed below the first horizontal member, having one end connected to the upper end of the first lower shelf support column and the other end adjacent to the first lower shelf support column. A second horizontal member connecting the upper end,
The first horizontal member and the second horizontal member are disposed between the first horizontal member and the second horizontal member, and the first horizontal member moves relative to the second horizontal member. A viscoelastic body that undergoes shear deformation when
Rack equipment having . Either one of the first horizontal member and the second horizontal member has a U-shaped cross section,
Either one of the first horizontal member and the second horizontal member is disposed inside one of the horizontal members.
The rack apparatus according to claim 1. The viscoelastic body is attached to an inner surface of the one horizontal member and an outer surface of the other horizontal member.
The rack apparatus according to claim 2. Any one of the horizontal members has a retaining portion for restricting the upward or downward withdrawal of the other horizontal member,
The rack apparatus according to claim 2 or 3. The seismic isolation mechanism is
Friction force when the other surface abuts and slides attached to the inner surface of one of the horizontal members, or the one of the horizontal members attached to the other surface Low friction that reduces the friction force when the inner surface abuts and slides to less than the friction force when the inner surface of one of the horizontal members and the other surface abuts and slides Element,
The rack device according to any one of claims 2 to 4, further comprising:

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