JP2015000797A - Low-temperature storage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-temperature storage system which prevents quality deterioration of a storage object by a simple structure and reduces cost for a coolant.SOLUTION: A low-temperature storage system, which stores a storage object at a low temperature, includes a low-temperature shed 110, a plurality of rotary stages 120, 130, 140 which are vertically arranged inside the low-temperature shed 110 in a state rotatable about a vertical axis; and a stage drive mechanism which rotates the plurality of rotary stages 120, 130, 140 independently from each other. At least a part of the rotary stages 120, 130, 140 is provided with a storage area for storing the storage object. The rotary stages 120, 130 other than the lowermost rotary stage 140 are provided with a vertically penetrating transfer slit.

Description

  The present invention relates to a low-temperature storage system for storing an object to be stored at a low temperature, and in particular, discovers or designs a drug in medicine, biotechnology and pharmacy under an ultra-low temperature such as −190 ° C. cooled with liquid nitrogen or the like. The present invention relates to a cryogenic storage system for storing a drug discovery sample used in a process.

  Conventionally, as a low-temperature storage system for storing containers containing samples at a low temperature, a storage rack for storing a plurality of storage plates holding a plurality of containers in the vertical direction, and a low-temperature storage chamber of −80 ° C. or lower for storing a plurality of storage racks, A work room that is cooler than the external environment provided adjacent to the cold storage room, an entry / exit room provided adjacent to the work room, and a storage plate that is provided in the work room and is moved into and out of the storage rack There is known a low-temperature storage system including a plate transport mechanism that performs this operation and a pickup mechanism that is provided in a work chamber and can individually take out containers from a storage plate (see, for example, Patent Document 1).

  The plate transport mechanism has storage rack moving means for individually moving the storage rack into and out of the low temperature storage room, and storage plate moving means for individually moving the storage plate into and out of the storage rack, and is movable within the work chamber. It is configured.

  In the low-temperature storage system of Patent Document 1, when a desired container is taken out from the low-temperature storage chamber, a storage rack containing a plurality of storage plates holding a plurality of containers is extracted from the low-temperature storage chamber, and then the storage rack is stored in the work room. Remove the storage plate from the storage plate and take out the desired container from the storage plate.

JP 2012-56730 A

  However, in the low temperature storage system of Patent Document 1, when a desired container is taken out from the low temperature storage chamber, it is necessary to extract the storage rack from the low temperature storage chamber. In the working chamber which is taken out to the working chamber and has a room temperature higher than that of the low temperature storage chamber, the temperature of containers other than the desired container also rises. As a result, the quality of the sample contained in the container may be deteriorated, and when the storage rack whose temperature has been raised is returned to the low temperature storage room, the temperature of the low temperature storage room rises and the low temperature storage room is cooled. There is a problem that a large amount of cost is required for the coolant.

  The above-described problem is that when the room temperature of the low temperature storage room is set to an ultra-low temperature such as −190 ° C. by a coolant such as liquid nitrogen, the temperature difference between the room temperature of the low temperature storage room and the room temperature of the work room is large. It becomes even more prominent.

  The present invention solves these problems, and aims to provide a low-temperature storage system that has a simple structure, prevents quality deterioration of a storage object, and reduces the cost of a coolant. It is.

  The invention according to claim 1 is a low-temperature storage system for storing an object to be stored at a low temperature, and includes a low-temperature hangar and a plurality of vertically arranged in the low-temperature hangar in a state of being rotatable around a vertical axis. A rotation stage; and a stage drive mechanism for rotating the plurality of rotation stages independently of each other, and at least a part of the plurality of rotation stages is provided with a storage area for storing the storage object. Among the plurality of rotary stages, the rotary stage other than the lowest rotary stage is provided with a transfer slit penetrating in the vertical direction, thereby solving the above problem.

In the invention according to claim 2, in addition to the configuration of the invention according to claim 1, the storage area of the rotary stage is an area for storing a storage plate holding a plurality of storage objects, and the plurality of rotary stages. The above-mentioned problem is solved by providing a picking area for transferring the storage object held on the storage plate to another storage plate in the uppermost rotary stage.
The invention according to claim 3 is provided with a handling mechanism for handling the storage object in addition to the configuration of the invention according to claim 1 or claim 2, and the handling mechanism is configured to move the storage object vertically. By having the direction transfer means, the above-mentioned problem is solved.
According to a fourth aspect of the present invention, in addition to the configuration of the third aspect of the invention, the vertical direction transfer means includes a transfer unit that transfers the storage object in the vertical direction, and a vertical transfer drive that drives the transfer unit. And the drive source for up-and-down transfer is arranged outside the low-temperature hangar to solve the above problem.
In the invention according to claim 5, in addition to the configuration of the invention according to claim 3 or claim 4, the storage area of the rotary stage is an area for storing a storage plate holding a plurality of storage objects, The vertical transfer means is for transferring the storage plate, and a picking area is provided in the uppermost rotary stage among the plurality of rotary stages, and the handling mechanism is provided with a picking area for the uppermost rotary stage. The above-mentioned problems are solved by providing picking means for transferring a storage object held on the storage plate to another storage plate.
In addition to the structure of the invention according to claim 5, the picking means includes a picking unit that transfers a storage object held on the storage plate to another storage plate, and the picking unit. It has a picking drive source for driving, and the picking drive source is arranged outside the low temperature storage to solve the above-mentioned problem.
According to a seventh aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the stage driving mechanism is disposed inside the low-temperature storage and rotates the stage. And a stage rotation drive source that is disposed outside the low-temperature storage and drives the stage rotation means.
According to an eighth aspect of the invention, in addition to the configuration of the invention according to any one of the first to seventh aspects, the storage area is provided in all the rotary stages, and the storage areas are respectively stored in the storage area. The problem is solved by having a plurality of installation parts for installing the target.
The invention according to claim 9 is characterized in that, in addition to the configuration of the invention according to any one of claims 1 to 8, an opening that can be opened and closed is provided on the upper surface of the low temperature storage. It is a solution.
The invention according to claim 10 is characterized in that, in addition to the configuration of the invention according to any one of claims 1 to 9, the low-temperature hangar stores the object to be stored at an ultra-low temperature with liquid nitrogen, It solves the problem.

According to the first aspect of the present invention, the upper and lower rotary stages are rotatably provided independently from each other, and the transfer slits penetrating in the vertical direction are provided in the rotary stages other than the lowest rotary stage. By rotating the rotary stage and adjusting the positional relationship between the transfer slits, the storage object can be transferred upward through the transfer slit, so that a sufficient storage amount of the storage object is secured. With a simple structure, only a desired storage object can be taken out from the low temperature storage. As a result, it is possible to prevent the storage target other than the desired storage target from being taken out of the low temperature hangar and increase the temperature, prevent the quality of the storage target from being deteriorated, and return the storage target whose temperature has increased to the low temperature hangar The rise in the internal temperature of the low temperature hangar due to can be prevented, and the cost related to the coolant for cooling the low temperature hangar can be reduced.
Further, according to the first aspect of the present invention, since the storage object can be taken out from the low-temperature storage by a simple operation of transferring the storage object upward through the transfer slit, the handling of the storage object is handled. The structure of the mechanism can be simplified.

According to the second aspect of the present invention, since the picking area is provided in the uppermost rotation stage, it is possible to perform the picking work for transferring the storage object to another storage plate in the low temperature storage. Therefore, the temperature of the object to be stored can be maintained at a low temperature.
According to the third aspect of the present invention, by providing the vertical transfer means for transferring the storage object in the vertical direction, the desired storage object can be transferred in the vertical direction through the transfer slit with a simple structure. .
According to the fourth aspect of the present invention, by arranging the vertical transfer drive source for driving the transfer unit outside the low temperature storage, the temperature in the low temperature storage rises due to the heat generated by the vertical transfer drive source. Can be prevented.
According to the invention of claim 5, the picking operation of the storage object is performed in the low temperature storage by providing the picking area in the uppermost rotation stage and the picking means for transferring the storage object to another storage plate. Since it can be performed, the temperature of the object to be stored can be maintained at a low temperature with a simple structure.
According to the sixth aspect of the present invention, by arranging the picking drive source for driving the picking unit outside the low temperature storage, the temperature in the low temperature storage rises due to the heat generated by the picking drive source. Can be prevented.
According to the seventh aspect of the present invention, the stage rotation drive source for driving the stage rotating means for rotating the rotary stage is arranged outside the low temperature storage, so that the low temperature storage is generated by the heat generated by the stage rotation drive source. The temperature inside can be prevented from rising.
According to the eighth aspect of the present invention, the storage area for storing the storage object is provided in all the rotary stages, and each storage area has a plurality of installation portions for installing the storage object, thereby providing the inside of the low temperature hangar. A sufficient number of storage objects can be stored.
According to the ninth aspect of the present invention, by providing the opening on the upper surface of the low temperature storage, it is possible to suppress the cold air in the low temperature storage from leaking to the outside and maintain the inside of the low temperature storage at a low temperature.
According to the invention of claim 10, storage of living cells and the like that need to be stored at ultra-low temperatures such as −190 ° C., because the low-temperature hangar stores the objects to be stored at ultra-low temperatures with liquid nitrogen. It can also deal with subjects.

BRIEF DESCRIPTION OF THE DRAWINGS The whole perspective view which shows the basic state of the low-temperature storage system which is one Embodiment of this invention. Sectional drawing which shows the basic state of a low-temperature storage system. The top view which shows the basic state of a low-temperature storage system. Explanatory drawing which shows the uppermost rotation stage. Explanatory drawing which shows the rotation stage of a middle stage. Explanatory drawing which shows the lowermost rotation stage. The whole perspective view which shows the low-temperature storage system at the time of up-and-down transfer of a storage plate. Sectional drawing which shows the low-temperature storage system at the time of up-and-down transfer of a storage plate. The top view which shows the low-temperature storage system at the time of up-and-down transfer of a storage plate. The whole perspective view which shows the low-temperature storage system at the time of picking. Sectional drawing which shows the low-temperature storage system at the time of picking. The top view which shows the low-temperature storage system at the time of picking. It is a perspective view which shows a container and a storage plate.

  The present invention is a low-temperature storage system for storing an object to be stored at a low temperature, a low-temperature hangar, a plurality of rotary stages arranged vertically in a low-temperature hangar in a rotatable state about a vertical axis, and a plurality of rotation stages A stage drive mechanism for rotating the rotary stages independently of each other, and at least some of the rotary stages are provided with a storage area for storing a storage target, and the lowest stage of the plurality of rotary stages. If the rotary stage other than the rotary stage is provided with a slit for transfer penetrating in the vertical direction, with a simple structure, preventing deterioration of the quality of the storage target and reducing the cost related to the coolant, The specific configuration may be any.

For example, in the embodiments described later, the storage target is described as a sample such as a living cell, but the specific type of storage target is not limited to this.
Further, in the embodiment described later, the storage object is described as being stored in a state of being stored in a container accommodated in a plurality of storage plates, but the specific storage mode of the storage object is not limited to this. For example, the storage target may be stored in a container without using a storage plate, or the storage target may be stored in the low temperature storage as it is.
In an embodiment described later, the storage plate is placed in the picking area provided on the uppermost rotation stage using the vertical transfer means, and then transferred to another storage plate using the picking means, and the desired container It is assumed that the storage plate containing only the gas is taken out from the low temperature storage. However, the specific mode of the low-temperature storage system is not limited to this, and a desired storage object may be directly taken out of the low-temperature storage by the up-down direction transfer unit without providing the picking unit.
Further, in the embodiment described later, the low temperature hangar is described as storing the storage object at an extremely low temperature such as −190 ° by liquid nitrogen injected therein, but the temperature in the low temperature hangar or the inside of the low temperature hangar is cooled. The specific aspect of the coolant to be performed is not limited to this.
Further, in the embodiments described later, the rotary stage is configured to be able to rotate 360 °, but the rotary stage may be configured to rotate in an angular range of less than 360 °.
Further, in the embodiment described later, it has been described that the storage area for storing the storage object is provided in all the rotary stages, but it is not always necessary to provide the storage area in all the rotary stages.

  Below, the cryogenic storage system 100 which concerns on one Embodiment of this invention is demonstrated based on drawing. In addition, in FIG. 1-12, in order to demonstrate easily, the state which installed the container only in the one part installation part among the installation parts of the storage area | region provided in each rotation stage is illustrated.

  The low-temperature storage system 100 stores a sample to be stored at a low temperature. As shown in FIGS. 1 and 2, the low-temperature storage system 100 is maintained in a low temperature, and is disposed in the low-temperature storage 110. Disc-shaped rotary stages 120, 130, 140, a stage drive mechanism 150 that rotates the rotary stages 120, 130, 140 independently of each other, and a handling mechanism that handles the storage plate P and the container C And.

  The low temperature hangar 110 stores samples at an ultra-low temperature such as −190 ° C. by liquid nitrogen injected therein, and an opening 111 is formed on the upper surface of the low temperature hangar 110 as shown in FIGS. The opening 111 is provided with an opening / closing door (not shown).

  As shown in FIG. 2, the plurality of rotary stages 120, 130, and 140 are vertically arranged in the low temperature storage 110 while being rotatable independently of each other about a common vertical axis. Each rotary stage 120, 130, 140 may have a different rotation axis. In the present embodiment, as shown in FIG. 2, the plurality of rotary stages 120, 130, and 140 are supported by a bearing 160 provided between the rotary stages 120, 130, and 140 so that they can rotate independently of each other. Has been. The specific mode of the bearing mechanism of each rotary stage 120, 130, 140 is not limited to the above. For example, the bearing mechanism is configured by a shaft member that penetrates the center of each rotary stage 120, 130, 140 in the vertical direction. Alternatively, a bearing member may be disposed on the outer peripheral side of the rotary stages 120, 130, and 140, and the rotary stages 120, 130, and 140 may be supported on the outer peripheral side.

  As shown in FIGS. 4 to 6, storage areas 121, 131, and 141 are provided in the respective rotation stages 120, 130, and 140, and each of the storage areas 121, 131, and 141 includes a plurality of installation portions 121 a, 131 a, 141a is provided. As shown in FIG. 13, a storage plate P containing a plurality of containers C with caps in which samples are placed is detachably installed in the installation parts 121a, 131a, 141a.

  As shown in FIGS. 4 and 5, the uppermost rotary stage 120 and the middle rotary stage 130 are provided with transfer slits 122 and 132 penetrating in the vertical direction. As shown in FIG. 4, the uppermost rotation stage 120 is provided with a picking region 123 for transferring the container C held on the storage plate P to another storage plate P.

  The stage driving mechanism 150 rotates the rotary stages 120, 130, and 140 independently of each other. As shown in FIG. 1 and FIG. Rotating stage 151 for engaging and rotating the stage, and a stage rotation drive source 152 arranged outside the low temperature storage 110 and driving the stage rotating means 151. In this embodiment, as shown in FIG. 2, the stage rotating means 151 is composed of a pole extending in the vertical direction and a gear attached to the pole, and the stage rotation drive source 152 is shown in FIG. 1 and FIG. As shown, it consists of a motor that rotates the pole. In addition, the specific aspect of the stage drive mechanism 150 is not limited to the above, and any stage may be used as long as each of the rotary stages 120, 130, and 140 is smoothly rotated independently of each other.

  As the handling mechanism, as shown in FIG. 1, a vertical transfer means 170 for transferring the storage plate P in the vertical direction, and a picking means 180 for transferring the container C held on the storage plate P to another storage plate P. Is provided.

  As shown in FIG. 1, the vertical transfer means 170 includes a transfer arm 171 that is provided so as to be movable in the vertical direction and holds the storage plate P and transfers it in the vertical direction, and a vertical transfer drive source that drives the transfer arm 171. 172, and a vertical transfer support portion 173 that supports the transfer arm 171 and the vertical transfer drive source 172 so as to be movable in the horizontal direction. The vertical transfer drive source 172 is constituted by a motor or the like, and the vertical transfer support portion 173 is constituted by a rail, a column portion or the like. In addition, the specific aspect of the up-down direction transfer means 170 may be anything as long as the sample is transferred in the up-down direction.

  As shown in FIG. 8, the vertical transfer drive source 172 is configured to be located outside the low temperature storage 110 even when the transfer arm 171 reaches the lowest position, in other words, the low temperature storage 110. Never get inside.

  As shown in FIG. 1, the picking means 180 includes a picking arm 181 that transfers the container C held on the storage plate P to another storage plate P, a picking drive source 182 that drives the picking arm 181, and a picking arm. And a picking support 183 that supports the picking drive source 182 to be movable in the horizontal direction. The picking drive source 182 is constituted by a motor or the like, and the picking support portion 183 is constituted by a rail, a column portion or the like. In addition, the specific aspect of the picking means 180 is not limited to the upper and lower sides, and may be any as long as the sample held on the storage plate P is transferred to another storage plate P.

  As shown in FIG. 11, the picking drive source 182 is configured to be located outside the low temperature storage 110 during picking. In other words, the picking drive source 182 does not enter the low temperature storage 110.

  Next, an example of the operation of the low-temperature storage system 100 when the container C is taken out will be described below with reference to the drawings. Hereinafter, an example in which the container C in the storage plate P stored on the lowermost rotation stage 140 is taken out will be described.

  First, the opening / closing door is moved to open the opening 111 of the low temperature storage 110.

  Next, the lowermost rotary stage 140 is rotated so that the storage plate P containing the desired container C comes below the opening 111, and the transfer slits 122 and 132 are below the opening 111. The rotary stages 120 and 130 are rotated so as to come.

  Next, after the transfer arm 171 is moved to a position above the opening 111, the transfer arm 171 is moved downward as shown in FIG. 7 and FIG. Is held.

  Next, the transfer arm 171 holding the storage plate P is moved upward to transfer the storage plate P to a position above the uppermost rotary stage 120, and then the uppermost rotary stage below the transfer arm 171. The uppermost rotary stage 120 is rotated so that 120 picking regions 123 come.

  Next, the transfer arm 171 releases the storage plate P, and the storage plate P is detachably installed in the picking region 123 of the uppermost rotary stage 120.

  Next, after moving the transfer arm 171 in the horizontal direction so that the transfer arm 171 retracts to a position other than the position above the opening 111, picking is performed so that the picking arm 181 is positioned above the opening 111. The arm 181 is moved.

  Next, as shown in FIGS. 10 and 11, after the tip end side of the picking arm 181 is placed in the low temperature storage 110, the picking arm 181 is used to remove the desired container C from the storage plate P holding the desired container C. The container C is transferred to another storage plate P.

  Here, when there are a plurality of desired containers C, the above-described work procedure is repeated a plurality of times.

  Finally, the storage plate P containing only the desired container C is taken out from the low temperature storage 110 by a user's hand or an automatic robot (not shown).

  The above is an example of the operation of the low-temperature storage system 100. Specific work procedures and timings are as follows: rotation operation of the rotary stages 120, 130, and 140, vertical transfer operation by the transfer arm 171 and picking operation by the picking arm 181. As long as the desired container C is taken out of the low temperature storage 110 using

  The operation of the low-temperature storage system 100 described above is controlled by a control unit such as a PLC that controls the stage driving mechanism 150 and the handling mechanism in accordance with an instruction input from the user.

In the cryogenic storage system 100 of the present embodiment thus obtained, the rotary stages 120, 130, and 140 arranged above and below are rotatably provided independently from each other, and a rotary stage other than the lowest rotary stage 140 is provided. 120 and 130 are provided with transfer slits 122 and 132 penetrating in the vertical direction.
Accordingly, the sample can be transferred upward through the transfer slits 122 and 132 by adjusting the positional relationship between the transfer slits 122 and 132 by rotating the rotary stages 120 and 130. Only a desired sample can be taken out from the low temperature storage 110 with a simple structure while securing a sufficient storage amount.
As a result, samples other than the desired sample can be prevented from being taken out from the low temperature storage 110 and the temperature can be prevented, quality deterioration of the sample can be prevented, and the sample whose temperature has increased is returned to the low temperature storage 110. The rise in the internal temperature of the low temperature hangar 110 can be prevented, and the cost related to the coolant for cooling the inside of the low temperature hangar 110 can be reduced.

  Further, since the sample can be taken out from the low temperature storage 110 by a simple operation of transferring the sample upward through the transfer slits 122 and 132, the structure of the handling mechanism for handling the sample can be simplified. .

  In addition, since the picking region 123 is provided in the uppermost rotation stage 120, the picking operation for transferring the sample to another storage plate P can be performed in the low temperature storage 110, so that the temperature of the sample can be set. Can be maintained at low temperatures.

  Further, by arranging the vertical transfer drive source 172 for driving the transfer arm 171 outside the low temperature storage 110, it is possible to prevent the temperature in the low temperature storage 110 from rising due to the heat generated by the vertical transfer drive source 172. .

  Further, by disposing the picking drive source 182 for driving the picking arm 181 outside the low temperature storage 110, it is possible to prevent the temperature in the low temperature storage 110 from rising due to the heat generated by the picking drive source 182.

  Further, by disposing a stage rotation drive source 152 for driving the stage rotation means 151 for rotating the rotary stages 120, 130, and 140 outside the low temperature storage 110, the low temperature storage is generated by the heat generated by the stage rotation drive source 152. The temperature in 110 can be prevented from rising.

  In addition, storage areas 121, 131, 141 for storing samples are provided in all the rotary stages 120, 130, 140, and each storage area 121, 131, 141 has a plurality of installation parts 121a, 131a, 141a for installing samples. By doing so, a sufficient number of samples can be stored in the low temperature storage 110.

  Further, by providing the opening 111 on the upper surface of the low temperature storage 110, it is possible to suppress the cold air in the low temperature storage 110 from leaking to the outside, and to maintain the inside of the low temperature storage 110 at a low temperature.

  Moreover, since the low-temperature storage 110 stores samples at an ultra-low temperature using liquid nitrogen, it can also deal with samples such as biological cells that need to be stored at an ultra-low temperature such as −190 ° C.

DESCRIPTION OF SYMBOLS 100 ... Low temperature storage system 110 ... Low temperature storage 111 ... Opening part 120 ... Uppermost rotation stage 121 ... Storage area 121a ... Installation part 122 ... Transfer slit 123 ...・ Picking area 130 ・ ・ ・ Middle rotary stage 131 ・ ・ ・ Storage area 131 a ・ ・ ・ Installation section 132 ・ ・ ・ Transfer slit 140 ・ ・ ・ Lowermost rotary stage 141 ・ ・ ・ Storage area 141 a ・ ・ ・ Installation Part 150 ・ ・ ・ Stage drive mechanism 151 ・ ・ ・ Stage rotation means 152 ・ ・ ・ Stage rotation drive source 160 ・ ・ ・ Bearing 170 ・ ・ ・ Vertical transfer means 171 ・ ・ ・ Transfer arm (transfer part)
172 ... Vertical transfer drive source 173 ... Vertical transfer support part 180 ... Picking means 181 ... Picking arm (picking part)
182 ・ ・ ・ Picking drive source 183 ・ ・ ・ Picking support part P ・ ・ ・ Storage plate C ・ ・ ・ Container

Claims (10)

A low-temperature storage system for storing storage objects at low temperatures,
A low-temperature hangar, a plurality of rotary stages disposed above and below in the low-temperature hangar in a state of being rotatable about a vertical axis, and a stage driving mechanism for rotating the plurality of rotary stages independently of each other,
A storage area for storing the storage object is provided in at least some of the plurality of rotation stages,
A low temperature storage system characterized in that a transfer slit penetrating in a vertical direction is provided in a rotary stage other than the lowest rotary stage among the plurality of rotary stages. The storage area of the rotary stage is an area for storing a storage plate holding a plurality of storage objects,
The picking area | region for transferring the storage object hold | maintained at the said storage plate to another storage plate is provided in the uppermost rotation stage among these several rotation stages. Low temperature storage system. A handling mechanism for handling the storage object;
The low temperature storage system according to claim 1 or 2, wherein the handling mechanism includes a vertical transfer means for transferring the storage object in the vertical direction. The vertical transfer means has a transfer unit for transferring the storage object in the vertical direction, and a vertical transfer drive source for driving the transfer unit,
The low-temperature storage system according to claim 3, wherein the vertical transfer drive source is disposed outside the low-temperature storage. The storage area of the rotary stage is an area for storing a storage plate holding a plurality of storage objects,
The up-down direction transfer means is for transferring the storage plate,
A picking area is provided in the uppermost rotation stage among the plurality of rotation stages,
The said handling mechanism is provided with the picking means which transfers the storage object hold | maintained at the said storage plate to another storage plate in the picking area | region of the said uppermost rotation stage. 4. The cryogenic storage system according to 4. The picking means has a picking unit that transfers a storage object held in the storage plate to another storage plate, and a picking drive source that drives the picking unit,
The low temperature storage system according to claim 5, wherein the picking drive source is disposed outside the low temperature storage.   The stage driving mechanism includes a stage rotating unit that is disposed inside the low temperature storage and rotates the rotary stage, and a stage rotation drive source that is disposed outside the low temperature storage and drives the stage rotating unit. The low-temperature storage system according to claim 1, wherein the system is a low-temperature storage system. The storage area is provided in all the rotation stages,
The low-temperature storage system according to any one of claims 1 to 7, wherein each of the storage areas has a plurality of installation units for installing the storage objects.   The low temperature storage system according to any one of claims 1 to 8, wherein an opening that can be opened and closed is provided on an upper surface of the low temperature storage.   The low-temperature storage system according to any one of claims 1 to 9, wherein the low-temperature hangar stores a storage object at an ultra-low temperature using liquid nitrogen.

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