WO2018066208A1

WO2018066208A1 - Storage shelf

Info

Publication number: WO2018066208A1
Application number: PCT/JP2017/026668
Authority: WO
Inventors: 玄己小合
Original assignee: 村田機械株式会社
Priority date: 2016-10-04
Filing date: 2017-07-24
Publication date: 2018-04-12
Also published as: TW201813897A

Abstract

[Problem] To provide a storage shelf having a simple configuration which can prevent a container from falling from a shelf board. [Solution] A storage shelf 100 for storing a container 5, which has a flange 5b at the top of the body 5a, is equipped with a fall prevention member 30 which is disposed in front of the flange 5b and above the body 5a of the container 5 placed on a shelf board 10, and which has a space K that allows the flange 5b to pass thereover.

Description

Storage shelf

The present invention relates to a storage shelf.

Containers such as FOUP, SMIF Pod, and reticle Pod that accommodate wafers or reticles are stored in a storage shelf such as a stocker. The storage shelf has, for example, a plurality of shelf plates arranged in the vertical direction, and stores and stores containers on each shelf plate. Each shelf is provided with pins that are inserted into a plurality of radial grooves provided at the bottom of the container. Each container has a groove on the bottom surface, and is positioned by placing the pin of the shelf board into the groove, and is placed on the shelf board. In recent years, there has been a demand for a configuration in which a container does not fall from a shelf board when a vibration such as an earthquake occurs. Patent Document 1 describes a configuration in which a shelf plate is provided with a fall prevention member that is locked to a bottom flange of a container.

JP 2009-196748 A

However, since the above-described fall prevention member is commonly applied to a plurality of types of containers having different shapes such as a bottom flange, it is necessary to increase the space for allowing the container to pass when the container is taken in and out. is there. As a result, the gap between the bottom flange and the fall prevention member becomes large, and the container may be greatly inclined when vibration is generated, which may give a large impact to the container or eventually cause the container to fall from the shelf. In addition, since the above-described fall prevention member is provided so as to largely protrude on the shelf plate, the storage space for the container is reduced by that amount, and the space efficiency is lowered.

In view of the circumstances as described above, an object of the present invention is to provide a storage shelf that can prevent a container from dropping from a shelf board with a simple configuration.

The storage shelf according to the present invention is a storage shelf for storing a container having a flange on the upper portion of the main body, and is disposed above the main body of the container placed on the shelf and in front of the flange. Is provided with a fall prevention member having a space that can pass through.

Further, the container may be detachably attached to the side surface, and the upper part may have a lid part protruding upward from the main body part, and the fall prevention member may be arranged behind the upper part of the lid part. Further, a plurality of shelf boards may be provided in the vertical direction, and the fall prevention member may be an L-shaped member arranged so as to hang down from the upper shelf board. The fall prevention member may be formed by bending a part of the upper shelf board.

Further, the fall prevention member may have a horizontal portion and a vertical portion that extends upward from the outside of the horizontal portion and connects to the upper shelf board. Further, the horizontal portion may be disposed at a height equal to or substantially equal to the flange of the container placed on the shelf board. Moreover, the shape of the part which opposes a flange according to the shape of a flange may be formed in a horizontal part. In addition, the shelf board may include a notch part in which a central part in the left-right direction orthogonal to the front-rear direction is notched, and the fall prevention members may be provided on both sides of the notch part of the upper shelf board.

The storage shelf according to the present invention prevents the container from slipping or overturning when the front of the flange hits the fall prevention member when the container falls forward due to vibration such as an earthquake. In addition, even when the container falls to the rear side, a part of the container hits the fall preventing member to prevent the container from being displaced or toppled. Thereby, a container can be prevented from dropping from the shelf board with a simple configuration. In addition, since there is a space for allowing the flange to pass upward, it is possible to avoid the flange or the main body of the container from interfering with the fall prevention member when the container is transferred to the shelf board. It will not be a hindrance.

In addition, when the container has a lid portion and the fall prevention member is arranged behind the upper portion of the lid portion, the fall prevention member is placed on the upper portion of the lid portion or the main body portion of the container even when the container falls to the back side. The container can be prevented from slipping or falling, and the container can be reliably prevented from falling from the shelf board. Further, when a plurality of shelf boards are provided in the vertical direction and the fall prevention member is an L-shaped member arranged so as to hang down from the upper shelf board, the fall prevention member can be easily formed with a simple configuration. . Moreover, when a fall prevention member is formed by bending a part of upper shelf board, a fall prevention member can be easily formed, without using a fixture.

Also, when the fall prevention member has a horizontal part and a vertical part that extends upward from the outside of the horizontal part and connects to the upper shelf, a space through which the flange passes can be easily formed by the vertical part. Further, when the horizontal portion is disposed at a height equal to or substantially equal to the flange of the container placed on the shelf plate, the flange can be more reliably supported by the horizontal portion when the container falls forward. . Further, when the shape of the portion of the horizontal portion facing the flange is formed according to the shape of the flange, the horizontal portion can be disposed in the vicinity of the flange. Further, in the case where the shelf plate includes a notch portion in which a central portion in the left-right direction orthogonal to the front-rear direction is cut out, and the fall prevention members are provided on both sides sandwiching the notch portion of the upper shelf plate, By using the fall prevention member, it is possible to more reliably prevent the container from dropping.

It is a figure which shows an example of the storage shelf which concerns on this embodiment. It is a side view of a storage shelf. It is a front view of a storage shelf. It is a top view of a storage shelf. It is a perspective view which expands and shows an example of a fall prevention member. An example of the operation | work which transfers a container to a storage shelf is shown, (A) is a figure which shows the state before a container passes a fall prevention member, (B) shows the state after a container passes the fall prevention member. FIG. 3C is a diagram showing a state where the container is placed. The container stored on the storage shelf is shown, (A) is a view showing a state in which the container has fallen forward, and (B) is a view showing a state in which the container has fallen backward.

Hereinafter, embodiments will be described with reference to the drawings. Further, in the drawings, in order to describe the embodiment, the scale is appropriately changed and expressed by partially enlarging or emphasizing the description. In the following drawings, directions in the drawings will be described using an XYZ coordinate system. In this XYZ coordinate system, the vertical direction is the Z direction, and the horizontal direction is the X direction and the Y direction. In each of the X direction, the Y direction, and the Z direction, the direction of the arrow in the figure is the + direction, and the direction opposite to the direction of the arrow is the − direction.

FIG. 1 is a diagram schematically illustrating an example of a storage shelf 100 according to the present embodiment. FIG. 2 is a side view of the storage shelf 100. FIG. 3 is a front view of the storage shelf 100. FIG. 4 is a plan view of the storage shelf 100. As shown in FIGS. 1 to 4, the storage shelf 100 is disposed, for example, in an automatic warehouse that stores a plurality of containers 5, in the vicinity of a processing device, or along a traveling route of a ceiling transport vehicle. A storage device for storing the container 5. For example, the container 5 is a wafer or a FOUP that accommodates an article such as a reticle used for manufacturing a semiconductor element, but is not limited thereto, and may be a SMIF Pod, a reticle Pod, or the like. In the present embodiment, the container 5 includes a main body portion 5a, a flange 5b, and a lid portion 5c.

The main body 5a has, for example, a box shape with a space that can accommodate articles therein, and has an opening on the front side surface. The main body 5a can store and take out articles through the opening. The flange 5b is disposed at the upper part of the main body 5a. The flange 5b is formed in, for example, a rectangular plate shape, and a tapered portion (chamfered portion or notched portion) 5d is provided at a corner (see FIG. 5). The flange 5b is fixed to the upper surface of the main body portion 5a via the flange fixing portion 5e. Therefore, the gap is generated between the flange 5b and the main body 5a by the height of the flange fixing portion 5e.

The lid 5c is attached so as to close the opening of the main body 5a, and is removable from the main body 5a. The upper part of the lid part 5c protrudes upward from the main body part 5a. In addition, when the cover part 5c protrudes upwards from the main-body part 5a, the part which covers this protruding part may be provided in the main-body part 5a.

As shown in FIG. 1 to FIG. 4, the storage shelf 100 includes a plurality of shelf boards 10, a column part 20, and a fall prevention member 30. Further, the storage shelf 100 may include a plurality of purge devices (not shown) for supplying purge gas into the container 5 when the container 5 is placed on the shelf board 10, and for transferring the container 5. A transfer device (for example, a stacker crane) may be provided.

As shown in FIGS. 2 and 3, the shelf board 10 is arranged in a plurality of stages in the vertical direction (Z direction). Each of the shelf boards 10 is disposed in a substantially horizontal direction and is disposed at substantially equal intervals in the vertical direction. Note that the shelf boards 10 may be arranged in a plurality of stages in the up-down direction and arranged in a plurality in the horizontal direction (X direction). Further, only one shelf plate 10 may be provided.

The plurality of shelf boards 10 are fixed to the column part 20 by fixing members 13 such as bolts as shown in FIG. Each of the plurality of shelf boards 10 has a notch portion 11 (see FIG. 1) and a placement portion 12. The cutout portion 11 is provided by cutting out the central portion of the shelf board 10 in the left-right direction (X direction) orthogonal to the front-rear direction (Y direction). The cutout portion 11 is provided in such a size that a part (portion on which the container 5 is placed) of the transfer device 40 (see FIG. 6) can pass in the vertical direction.

As shown in FIG. 4, the mounting portion 12 extends in the front-rear direction, and is disposed on the left and right sides with the notch portion 11 interposed therebetween. The mounting portion 12 is formed in a plate shape from a material such as metal, and the outer side edge in the left-right direction is bent downward (−Z direction). The placement parts 12 on both sides of the notch part 11 can place the container 5. The mounting portion 12 has a plurality of pins 12a on the upper surface. The pins 12 a are inserted into a plurality of radial grooves provided at the bottom of the container 5 when the container 5 is placed on the placement part 12. Each pin 12a is inserted in each groove part, and positions the container 5 with respect to the shelf board 10 (mounting part 12). In addition, the structure by which the edge parts of the back | inner side (+ Y side) of the shelf board 10 were connected in the left-right direction may be sufficient as the mounting part 12. FIG. In this case, the pin 12a may be provided on the upper surface of the connection portion.

The pillars 20 are provided at regular intervals in the X direction, for example. A shelf board 10 may be formed between the pillar portions 20. The column portion 20 extends in the up-down direction (Z direction) and is disposed so as to sandwich the left and right sides of each shelf board 10. The column portion 20 supports an end portion on the back side (+ Y side) of the shelf board 10. Note that the column portion 20 may be disposed so as to support the front side (−Y side) of the shelf board 10. Moreover, the shelf board 10 is not limited to being supported by the column part 20, For example, you may attach to a panel etc.

The fall prevention member 30 supports a part of the container 5 such as the flange 5b when the container 5 falls forward, thereby restricting the container 5 from falling further forward and falling from the shelf board 10. To prevent that. As shown in FIG. 1, FIG. 3, and FIG. 4, the fall prevention member 30 is provided on each of the placement parts 12 on both sides of the shelf plate 10 with the notch part 11 interposed therebetween. Moreover, the fall prevention member 30 is provided so that it may hang down from the upper shelf board 10 with respect to the shelf board 10 in which the container 5 is mounted, as shown in FIGS. The fall prevention member 30 is provided, for example, in a state in which a part of the plate-like member constituting the placement unit 12 is bent downward.

The fall prevention member 30 has a vertical part 31 and a horizontal part 32. The vertical portion 31 is a portion connected to the placement portion 12 of the shelf board 10 and extending downward (−Z direction). The horizontal portion 32 is provided at the lower end of the vertical portion 31, and is disposed in parallel or substantially parallel to the horizontal plane (XY plane). The two horizontal portions 32 are formed so as to face each other. The fall prevention member 30 is an L-shaped member arranged so as to hang down from the upper shelf 10 when viewed from the front-rear direction.

As shown in FIG. 2, the horizontal portion 32 is disposed, for example, at a position where the height from the placement portion 12 (distance in the Z direction) is equal to or substantially equal to the flange 5b. Accordingly, the horizontal portion 32 is located above the main body portion 5a (+ Z side) and in front of the flange 5b (−Y side) in a state where the container 5 is placed on the placement portion 12 of the shelf board 10. . Thereby, when the container 5 falls forward, the horizontal part 32 hits the flange 5b, and it is possible to support the container 5 so that it does not fall further forward.

Note that the thickness (plate thickness) of the vertical portion 31 and the horizontal portion 32 is arbitrary. However, the horizontal portion 32 needs to allow passage of a portion between the upper surface of the main body portion 5a and the lower surface of the flange 5b when the container 5 is transferred. Therefore, the thickness of the vertical part 31 and the horizontal part 32 is set so that it may become smaller than the space | interval of the main-body part 5a and the flange 5b.

A space K through which the flange 5b can pass when the container 5 is accommodated in the shelf board 10 or when the container 5 is taken out of the shelf board 10 is formed above the horizontal portion 32. By providing the space K, it is possible to avoid the flange 5b or the main body portion 5a from interfering with the fall prevention member 30 when the container 5 is transferred to the shelf board 10, and the fall prevention member 30 can be Will not hinder the transfer of Further, the interval between the two horizontal portions 32 is set larger than the width of the flange fixing portion 5e. Thereby, when the flange 5b passes through the space K above the horizontal portion 32, the flange fixing portion 5e can pass between the two horizontal portions 32, and the flange fixing portion 5e interferes with the horizontal portion 32. You can avoid that.

As shown in FIG. 4, the horizontal portion 32 has a protruding portion 32 a that protrudes to the back side (+ Y side) of the shelf board 10. FIG. 5 is an enlarged perspective view showing an example of the fall prevention member 30. As shown in FIG. 5, the protruding portion 32a is disposed to face a part of the flange 5b. The protrusion 32a has, for example, a shape in which the inner end of the horizontal portion 32 extends to the back side (+ Y direction).

A tapered receiving portion 32d having a shape corresponding to the tapered portion 5d is formed in a portion of the protruding portion 32a facing the tapered portion 5d of the flange 5b. The taper receiving portion 32d of the horizontal portion 32 is disposed in the vicinity with a predetermined gap with respect to the taper portion 5d of the flange 5b, and is disposed at the same or substantially the same height as the taper portion 5d. Since the horizontal portion 32 includes the protruding portion 32a and the taper receiving portion 32d, the horizontal portion 32 can be arranged closer to the flange 5b. However, the predetermined gap described above is tapered with respect to the flange 5b in consideration of an error in the size of the flange 5b due to individual differences between the containers 5 and a transfer error when the container 5 is transferred by the transfer device 40. In order not to interfere with the receiving part 32d, for example, it is set to about several mm to several cm.

Further, as shown in FIG. 4, the two fall prevention members 30 are provided symmetrically with respect to the YZ plane. Accordingly, each fall prevention member 30 has a taper receiving portion 32d. For example, when the container 5 falls forward, the two taper portions 5d of the flange 5b are received by the taper receiving portions 32d, respectively. As a result, the container 5 is prevented from falling forward, and the flange 5b enters the two taper receiving portions 32d, thereby suppressing the container 5 from moving in the left-right direction (X direction). become.

In this way, by receiving the two taper portions 5d of the flange 5b with the two taper receiving portions 32d, the direction of the shaking of the storage shelf 100 is changed, for example, when the shaking in the left-right direction is added to the shaking in the front-rear direction. Even when the container 5 falls, it can be suppressed. However, whether or not the taper receiving portion 32d is provided on the fall prevention member 30 is arbitrary, and the taper receiving portion 32d may not be provided.

FIG. 6 is a diagram illustrating an example of an operation when the container 5 is accommodated by the transfer device 40 with respect to the storage shelf 100 described above. In FIG. 6, a part of the configuration of the column portion 20 and the like is omitted. When the container 5 is accommodated, first, as shown in FIG. 6A, the container 5 is inserted between the upper and lower shelf boards 10 with the container 5 placed on the transfer device 40.

At this time, the height position (position in the Z direction) of the container 5 is adjusted so that the horizontal portion 32 is positioned between the upper surface (height H1) of the main body 5a and the lower surface (height H2) of the flange 5b. As a result, the container 5 moves in the + Y direction. As a result, the flange 5b passes through the space K above the horizontal portion 32, and the flange fixing portion 5e passes between the two horizontal portions 32 almost simultaneously, and the container 5 moves to the back side. Thus, the insertion of the container 5 is completed above the shelf board 10 without the container 5 interfering with the fall prevention member 30.

When the container 5 is disposed at the insertion position, the horizontal portion 32 of the fall prevention member 30 is disposed between the flange 5b and the lid portion 5c in the Y direction. As shown in FIG. 6A, the container 5 is placed on the transfer device 40 and inserted above the shelf board 10. The shelf board 10 has the pins 12a above as described above. Therefore, the height of the container 5 at the time of insertion is set to a height at which the lower part of the container 5 does not interfere with the pin 12a.

Next, as shown in FIG. 6 (B), the transfer device 40 is lowered to pass through the notch 11. By allowing the transfer device 40 to pass through the cutout portion 11, the container 5 is placed on the placement portion 12 of the shelf plate 10, and the transfer from the transfer device 40 to the shelf plate 10 is completed. When the container 5 is placed on the shelf board 10, the pin 12 a is inserted into a groove portion (not shown) provided at the bottom of the container 5, and the container 5 is placed in the horizontal direction (X direction and Positioned in the Y direction). Further, since the container 5 is lowered in a state where the horizontal portion 32 is disposed between the flange 5b and the lid portion 5c, the horizontal portion 32 and the container 5 (flange 5b and the like) do not interfere with each other, and FIG. ), The container 5 is placed on the placement unit 12.

In a state where the container 5 is placed on the placement portion 12, the horizontal portion 32 is disposed between the flange 5b and the lid portion 5c in the Y direction, and has a height (position in the Z direction) substantially equal to the flange 5b. Be placed. The transfer device 40 after placing the container 5 on the placement unit 12 moves in the −Y direction with the lowered height, for example, and leaves the storage shelf 100.

Further, when the container 5 placed on the placement unit 12 is taken out by the transfer device 40, an operation opposite to that described above is performed. For example, the transfer device 40 is inserted below the shelf board 10 at a height lower than the target container 5. Subsequently, the container 5 is transferred from the placement unit 12 to the transfer device 40 by raising a part of the transfer device 40 through the notch 11. Subsequently, the transfer device 40 stops rising at a position where the flange 5b of the container 5 is higher than the horizontal part 32 and the horizontal part 32 is higher than the upper part of the main body part 5a, and the −Y direction while maintaining this height. 6A, the container 5 can be taken out from the storage shelf 100.

FIG. 7 shows the container 5 stored in the storage shelf 100, (A) shows a state in which the container 5 has fallen forward, and (B) shows a state in which the container 5 has fallen backward. When the storage shelf 100 shakes in the front-rear direction due to an earthquake or the like, the container 5 has a pin 12a in a groove portion (not shown) on the bottom surface, and the bottom portion of the main body portion 5a is fastened to the mounting portion 12 in the horizontal direction. Therefore, it tilts so as to fall forward or backward. For example, as shown in FIG. 7A, when the container 5 falls to the front side, the horizontal portion 32 of the fall prevention member 30 is disposed in front of the flange 5b, so that the flange 5b hits the horizontal portion 32 and the container 5 will be accepted. Thereby, it is possible to prevent the container 5 from being shifted forward on the placement portion 12 or the container 5 from falling forward and falling from the shelf board 10.

Further, for example, as shown in FIG. 7B, when the container 5 falls to the rear side, the horizontal portion 32 of the fall prevention member 30 is disposed behind the upper portion of the lid portion 5c. The upper part hits the horizontal part 32 and the container 5 is received. Thereby, it can prevent that the container 5 shifts | deviates back on the mounting part 12, or the container 5 falls back. FIG. 7B shows an example in which the upper part of the lid 5c hits the horizontal part 32, but the present invention is not limited to this. The upper surface of the main body portion 5 a of the container 5 may hit the horizontal portion 32. In this case as well, the container 5 can be prevented from falling backward.

Thus, according to the storage shelf 100 according to the present embodiment, when the container 5 falls forward, the flange 5b hits the fall preventing member 30 and the container 5 is prevented from being displaced or toppled. In addition, even when the container 5 falls to the rear side, a part of the container 5 hits the fall preventing member 30 and the container 5 is prevented from being displaced or toppled. Thereby, the fall of the container 5 from the shelf board 10 can be prevented with a simple configuration. Moreover, since it has the space K for allowing the flange 5b to pass upward, the flange 5b or the main body 5a of the container 5 interferes with the fall prevention member 30 when the container 5 is transferred to the shelf board 10. This can be avoided, and the fall prevention member 30 does not hinder container transfer.

Moreover, since the fall prevention member 30 is arrange | positioned at the back of the upper part of the cover part 5c of the container 5 in the storage shelf 100 which concerns on this embodiment, even when the container 5 falls back, the fall prevention member 30 is The container 5 is prevented from being displaced or overturned by hitting the upper part of the lid part 5c or the main body part 5a of the container 5, and the container 5 can be reliably prevented from dropping from the shelf board 10. The container 5 may be of a type in which the upper part of the lid part 5c does not protrude from the upper part of the main body part 5a. Even in such a container 5, when the container 5 falls to the rear side, the upper surface of the main body portion 5 a hits the fall prevention member 30, thereby preventing the container 5 from being displaced or toppled.

As mentioned above, although embodiment of this invention was described, the technical scope of this invention is not limited to above-described embodiment. For example, in the above-described embodiment, the storage shelf 100 in which a plurality of the shelf boards 10 are provided above and below is described as an example, but the shelf board 10 may be a storage shelf with only one stage. Moreover, although the description has been given of the configuration in which the fall prevention member 30 is disposed on each of the placement parts 12 on both sides of the notch part 11, the present invention is not limited thereto. For example, the structure by which the fall prevention member 30 is arrange | positioned only in any one mounting part 12 may be sufficient.

In the above-described embodiment, the fall prevention member 30 is an L-shaped member disposed so as to hang down from the upper shelf board 10, but is not limited to this shape, and is placed on the placement portion 12. The form is arbitrary as long as it can be arranged in front of the flange 5b of the container 5. For example, the fall prevention member 30 may be attached to the column part 20, and shapes (for example, curved shape) other than L shape may be used.

In the above-described embodiment, the fall prevention member 30 is formed by bending a part of the upper shelf board 10, but the present invention is not limited to this. For example, a metal or resin fall prevention member 30 formed separately from the shelf board 10 may be attached to the shelf board 10 by a fastening member such as a fixing screw, or fixed to the shelf board 10 by welding or the like. May be. When the fall prevention member 30 is attached to the shelf board 10 with a fixing screw or the like, a long hole or a plurality of through holes are formed in the fall prevention member 30 in advance, and the fixing position of the fall prevention member 30 with the fixing screw or the like is set in the horizontal direction. It may be adjustable. Thereby, the horizontal space | interval of the two fall prevention members 30 can be adjusted easily.

Further, in the above-described embodiment, the space K is formed by the vertical portion 31 and the horizontal portion 32 of the fall prevention member 30, but the size of the space K may be changeable. For example, as described above, the width in the left-right direction of the space K can be changed by adjusting the fixing position of the fall prevention member 30 (vertical portion 31). Moreover, the vertical part 31 and the horizontal part 32 are comprised separately, and the space | interval of the up-down direction of the space K can be changed by enabling the horizontal part 32 to move with respect to the vertical part 31.

In the above-described embodiment, a configuration in which the storage shelf 100 is provided with the fall prevention member 30 is shown. However, a structure for preventing the container 5 from dropping or the like may be added to the storage shelf 100. For example, the storage rack 100 may be provided with the fall prevention member 30 and a structure for locking the bottom flange of the container 5 to the shelf board 10 may be added. A structure in which the side is inclined upward may be added. By forming such a plurality of fall prevention measures, the container 5 is reliably prevented from falling.

In the above-described embodiment, the horizontal portion 32 of the fall prevention member 30 is disposed at a height equal to or substantially equal to the flange 5 b of the container 5 placed on the shelf board 10. Among these, the almost equal height is, for example, a height at which the flange 5b can hit the horizontal portion 32 when the container 5 falls forward. Therefore, the height of the horizontal portion 32 may be determined by the distance between the flange 5 b of the container 5 placed on the shelf board 10 and the horizontal portion 32. For example, the horizontal portion 32 may be higher or lower than the height of the flange 5b.

In the above-described embodiment, the horizontal portion 32 of the fall prevention member 30 has been described by taking as an example the configuration including the taper receiving portion 32d facing the taper portion 5d of the flange 5b. However, the present invention is not limited to this. For example, the taper receiving portion 32d may have another shape, or the taper receiving portion 32d may not be provided.

In the above-described embodiment, the configuration in which the protruding portion 32a is provided on the horizontal portion 32 of the fall prevention member 30 has been described as an example. However, the configuration is not limited to this configuration, and the protruding portion 32a is not provided. There may be. Moreover, although the structure provided in the state in which a part of horizontal part 32 extended to the + Y side was mentioned as an example as the protrusion part 32a, it demonstrated and was not limited to this structure, Other structures may be sufficient. In addition, to the extent permitted by law, the contents of Japanese Patent Application No. 2016-196217, which is a Japanese patent application, and all the references cited in this specification are incorporated herein by reference.

K ... Space 5 ... Container 5a ... Main body 5b ... Flange 5c ... Lid 5d ... Taper 5e ... Flange fixing part 10 ... Shelf 11 ... Notch part 12 ... Placement part 12a ... Pin 20 ... Column part 30 ... Fall prevention member 31 ... Vertical part 32 ... Horizontal part 32a ... Protrusion part 32d ... Taper receiving part 40 ... Transfer device 100 ... Storage shelf

Claims

A storage shelf for storing a container having a flange at the top of the main body,
A storage shelf comprising a fall prevention member disposed above the main body portion of the container placed on a shelf plate and in front of the flange, and having a space through which the flange can pass.
The container has a lid part that is detachably attached to a side surface, and an upper part projects upward from the main body part,
The storage shelf according to claim 1, wherein the fall prevention member is disposed behind the upper portion of the lid.
A plurality of the shelf boards are provided in the vertical direction,
The storage shelf according to claim 1 or 2, wherein the fall prevention member is an L-shaped member arranged so as to hang down from the shelf on the upper stage.
The storage shelf according to claim 3, wherein the fall prevention member is formed by bending a part of the upper shelf.
The storage shelf according to claim 3 or 4, wherein the fall prevention member has a horizontal portion and a vertical portion that extends upward from the outside of the horizontal portion and connects to the upper shelf.
The storage shelf according to claim 5, wherein the horizontal portion is disposed at a height equal to or substantially equal to the flange of the container placed on the shelf board.
The storage shelf according to claim 5 or 6, wherein a shape of a portion of the horizontal portion facing the flange is formed according to a shape of the flange.
The shelf board is provided with a notch portion in which a central portion in the left-right direction perpendicular to the front-rear direction is cut out,
The storage shelf according to any one of claims 3 to 7, wherein the fall prevention member is provided on both sides of the notch portion of the upper shelf.