JP2016043942A - Agitation device and storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agitation device and a storage container which can agitate an object to be agitated adequately without contacting the object to be agitated directly with an agitation shaft (an agitation blade) so as to prevent contamination of foreign matters.SOLUTION: A storage container is used in an agitation device including an agitation shaft for agitating an object to be agitated, a bearing part for supporting the agitation shaft, and a drive device for revolving the agitation shaft so that an end part draws a circle and swings with a bearing center of the bearing part as a fulcrum. The storage container for storing the object to be agitated includes: a main body part which is structured of a material of which deformation caused by an external pressure is small and has a space inside; an inner peripheral wall part which is arranged so as to protrude in the main body part, is formed in a bottomed cylindrical shape so as to form a space for storing the agitation shaft, and forms a sealed space for storing the object to be agitated with the main body part; a joint part for joining the main body part and the inner peripheral wall part. At least a part of the inner peripheral wall part is flexible so as to bend by following revolution movement of the agitation shaft.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a stirrer and a container used in the stirrer. In particular, a stirring device that stirs an object to be stirred by turning the stirring shaft so that the end swings in a circle around the bearing center of the bearing portion that supports the stirring shaft or the stirring blade. It relates to the container used.

  In production processes in the pharmaceutical and chemical fields, stirring processes such as mixing, dissolution, crystallization, concentration, slurry suspension, and gas-liquid contact are performed. In such a stirring process, depending on the material to be stirred, contamination from the outside may be disliked. In this case, a container that has been sterilized is used.

  In addition, the stirring shaft is designed so that the tip (lower end) of the stirring shaft in the stirring tank draws a circle with the predetermined portion of the upper half of the stirring shaft designed as a fulcrum designed to prevent contamination generated through the stirring shaft. It is also possible to use a stirrer that is adapted to make a swivel motion (for example, Patent Document 1). In this way, by rotating the stirring shaft so that the tip of the stirring shaft draws a circle and using the stirring device in which the stirring shaft does not actively rotate, the shaft seal device becomes unnecessary and contamination through the shaft seal portion Can be prevented from occurring.

JP 2013-81930 A

  Although the contamination device from the outside can be prevented by the above-described conventional stirring device, there is a demand for avoiding contact between the stirring shaft (stirring blade) and the stirring target object depending on the application.

  The present invention has been made in view of such circumstances, and the agitated object is appropriately agitated so that the agitated object does not directly come into contact with the agitation shaft (agitating blade) and foreign matter does not enter. It is an object of the present invention to provide a stirring device and a storage container that can be made to operate.

In order to solve the above-described problem, the container according to the present invention has an agitation shaft for agitating an object to be agitated, a bearing portion that supports the agitation shaft, and a bearing center of the bearing portion as a fulcrum. part was used with a stirring device and a driving device for turning the stirrer shaft as swinging a circle, a container for accommodating the stirring object, formed of a material deformed by external pressure is small, A main body portion having a space formed therein, and disposed so as to protrude into the main body portion, and provided in a bottomed cylindrical shape so as to form a space for housing the stirring shaft, together with the main body portion At least the inner peripheral wall portion that forms a sealed space for accommodating the stirring object, a joint portion that joins the main body portion and the inner peripheral wall portion, and flexing following the swirling motion of the stirring shaft. Part of the inner wall is possible Having sex.

  According to the said structure, the stirring apparatus using the storage container which concerns on this invention is a structure which can stir a stirring target object by turning a stirring shaft about a bearing center by a drive device.

  Here, the storage container according to the present invention includes an inner peripheral wall portion, and the stirring shaft can be stored in the main body portion by storing the stirring shaft in the space formed by the inner peripheral wall portion. For this reason, in the storage container, the stirring object accommodated in the sealed space in the main body can be stirred by the turning motion of the stirring shaft without directly contacting the stirring shaft with the stirring object. For this reason, it can prevent that a foreign material mixes in the stirring target object, and it becomes unnecessary to replace or wash the stirring shaft after the stirring operation.

  Moreover, in the storage container which concerns on this invention, at least one part of an inner peripheral wall part has flexibility. For this reason, the inner peripheral wall part joined to the main body part via the joint part can move following the turning motion of the stirring shaft during the stirring work, and appropriately stir the stirring target object in the storage container. be able to. Further, since the stirring shaft does not substantially rotate during the stirring operation, it does not rub against the inner peripheral wall portion, and it is possible to prevent problems such as wear of the inner peripheral wall portion and opening of holes. .

  Therefore, the container according to the present invention has an effect that the stirring object can be appropriately stirred so that the stirring object does not directly come into contact with the stirring shaft (stirring blade) and foreign matter is not mixed. Play.

  The container according to the present invention has the above-described configuration, wherein the main body portion protrudes upward on the upper surface of the main body portion to receive the inner peripheral wall portion and the stirring shaft stored in the inner peripheral wall portion, A cylindrical insertion port having an inner diameter defined within a range that does not hinder the swirling motion of the stirring shaft is provided, and the joining portion is provided in the insertion port, and is one of the flexible inner peripheral wall portions. The portion may be an end portion of the inner peripheral wall portion connected to the joint portion.

  According to the said structure, since the main body part is equipped with an insertion port, the storage container which concerns on this invention can accommodate the stirring shaft accommodated in the inner peripheral wall part and the inner peripheral wall part in the main body part via this insertion port. Further, the inner diameter of the insertion port is defined within a range that does not hinder the turning motion of the stirring shaft. For this reason, it can prevent that the movement of the stirring shaft accommodated in the inner peripheral wall part is prevented by this insertion port. Moreover, the junction part is provided in the insertion port. For this reason, an inner peripheral wall part can be joined to a main-body part by this junction part, and sealed space can be formed by both. Thereby, it can prevent that a foreign material mixes into the stirring target object in a main-body part from an insertion port.

  Furthermore, since the end of the inner peripheral wall connected to the joint has flexibility, the inner peripheral wall can swing freely in the horizontal direction with the joint provided at the insertion port as a fixed point. For this reason, the inner peripheral wall portion can move following the swirl movement without hindering the swirl movement of the stirring shaft, and the stirring object in the sealed space formed by the inner peripheral wall portion and the main body portion can be appropriately Can be stirred.

  Further, in the storage container according to the present invention, in the configuration described above, the joining portion may be configured such that the inner peripheral wall portion is detachably joined to the main body portion.

  According to the above configuration, the inner peripheral wall portion can be attached to and detached from the main body portion at the joint portion. For example, when there are a plurality of different shapes of the stirring shaft, an inner peripheral wall portion corresponding to each shape of the stirring shaft is prepared. And an inner peripheral wall part can be suitably selected according to the stirring shaft used with a stirring apparatus, and can be attached to a main-body part.

  The container according to the present invention may be configured such that, in the above-described configuration, the main body portion is made of a hard plastic having a larger elastic modulus than the flexible portion of the inner peripheral wall portion.

  According to the said structure, since a main-body part is comprised with the hard plastic, a storage container does not change easily during conveyance, and it is strong also to the impact from the outside. For this reason, the container according to the present invention can be easily transported while the stirring object is stored in the sealed space. Moreover, cost can be suppressed compared with the case where a steel container is used as a storage container.

  In order to solve the above-described problems, an agitation apparatus according to the present invention has an agitation shaft for agitating an object to be agitated, a bearing portion that supports the agitation shaft, and a bearing center of the bearing portion as a fulcrum. A drive device for turning the stirring shaft so that the portion swings in a circle, and a storage container for storing the stirring target, the storage container being made of a material that is hardly deformed by external pressure, A main body portion having a space formed therein, and disposed in a projecting manner in the main body portion, is provided in a bottomed cylindrical shape so as to form a space for housing the stirring shaft, and the stirring portion together with the main body portion. An inner peripheral wall portion that forms a sealed space for accommodating an object, a joint portion that joins the main body portion and the inner peripheral wall portion, and at least an inner peripheral wall portion so as to bend following the swirling motion of the stirring shaft A part of is flexible.

  According to the above configuration, the stirring device can stir the stirring target object by turning the stirring shaft about the bearing center with the driving device.

  Further, since the stirring shaft can be stored in the inner peripheral wall portion of the storage container, the stirring target is not stored in the sealed space of the storage container without directly contacting the stirring target in the storage container. The stirring object can be stirred. For this reason, it can prevent that a foreign material mixes in the stirring target object, and it becomes unnecessary to replace or wash the stirring shaft after the stirring operation.

  Moreover, in the storage container used with the stirring device according to the present invention, at least a part of the inner peripheral wall portion has flexibility. For this reason, the inner peripheral wall portion can move following the movement of the stirring shaft. Therefore, the agitation shaft accommodated in the inner peripheral wall can be swung without hindering movement, and the object to be agitated in the accommodation container can be appropriately agitated. Further, since the stirring shaft does not substantially rotate during the stirring operation, it does not rub against the inner peripheral wall portion, and it is possible to prevent problems such as wear of the inner peripheral wall portion and opening of holes. .

  Therefore, the stirring device according to the present invention has the effect that the stirring target can be appropriately stirred so that the stirring target does not directly contact the stirring shaft (stirring blade) and foreign matter is not mixed. Play.

  The stirring device and the container according to the present invention are configured as described above, and the stirring target is not properly brought into direct contact with the stirring shaft (stirring blade), so that foreign matter is not mixed appropriately. There is an effect that the object can be stirred.

It is a sectional side view which shows an example of schematic structure of the stirring apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the rotation stop part with which the stirring apparatus shown in FIG. 1 is provided. It is a sectional side view which shows an example of the arrangement | positioning relationship between a storage container and a stirring shaft in the stirring apparatus shown in FIG. It is a sectional side view which shows an example of the state which attached the cover part to the storage container shown in FIG. It is a sectional side view which shows an example of the arrangement | positioning relationship between the storage container and stirring shaft which concern on the modification of this Embodiment.

  Hereinafter, a specific configuration example of the stirring device 1 according to the embodiment of the present invention will be described with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference symbols throughout all the drawings, and redundant description thereof is omitted.

(Configuration of stirring device)
The configuration of the stirring device 1 will be described with reference to FIG. FIG. 1 is a side sectional view showing an example of a schematic configuration of a stirring device 1 according to an embodiment of the present invention.

  The stirrer 1 according to the present embodiment is used for stirring processes such as mixing, dissolution, crystallization, concentration, slurry suspension, and gas-liquid contact in a production process in the pharmaceutical and chemical fields, for example. Device. The stirrer 1 stirs a stirring target object by turning a bar-shaped or bowl-shaped stirring shaft 4 extending linearly.

  The stirring device 1 is provided with a storage container 2 for storing an object to be stirred below. The container 2 may be mounted on a mounting table, although not particularly illustrated. A more specific description regarding the configuration of the container 2 will be described later.

  Above the container 2, a drive device 5 for turning the stirring shaft 4 and a bearing 6 serving as a fulcrum for the turning motion of the stirring shaft 4 are provided. It is supported by the bearing portion 6. More specifically, the driving device 5 supports the stirring shaft 4 by joining the driving device 5 and one end portion (upper end portion) of the stirring shaft 4. Further, the bearing portion 6 supports the stirring shaft 4 at an arbitrary position between both end portions of the stirring shaft 4. For example, a spherical bearing can be adopted as the bearing portion 6 that supports the stirring shaft 4 and serves as a fulcrum of the turning motion. The stirring shaft 4 according to the present embodiment is supported by the driving device 5 and the bearing portion 6 in a state where the central axis A of the stirring shaft is inclined by α with respect to the central axis B of the driving device.

  The drive device 5 is configured to include an actuator 51 such as an electric motor and a rotating member 52 connected to the actuator 51. The rotating member 52 includes an output shaft 52 a that extends in the vertical direction, and a link portion 52 b that connects the output shaft 52 a and the end of the stirring shaft 4. In the present embodiment, the center axis B of the driving device 5 and the rotation axis of the rotating member 52 are configured to coincide with each other. Therefore, the central axis B of the drive device 5 can also be said to be the rotation axis of the rotation member 52.

  The output shaft 52a of the rotating member 52 is connected to the actuator 51 at one end and is connected to the link 52b at the other end. The link portion 52b has a first connecting member 52b1 whose one end is connected to the output shaft 52a and extends in the vertical direction, and the other end of the first connecting member 52b1 with respect to the extending direction of the first connecting member 52b1. And a second connecting member 52b2 protruding in a substantially vertical direction. As shown in FIG. 1, the link portion 52 b is joined to the output shaft 52 a in a state where the first connecting member 52 b 1 is inclined with respect to the central axis B of the driving device 5. Moreover, the upper end part of the stirring shaft 4 is being fixed by the lower surface side of the 2nd connection member 52b2. Note that a bearing (not shown) is provided at a connection portion between the second connecting member 52b2 and the stirring shaft 4.

  In the driving device 5 having the above-described configuration, when the actuator 51 is operated, the output shaft 52a of the rotating member 52 is rotationally driven, and the first connecting member 52b1 of the link portion 52b connected to the output shaft 52a is also rotated. When the first connecting member 52b1 rotates, the second connecting member 52b2 joined at the end also rotates (circulates) around the first connecting member 52b1. Then, the upper part of the stirring shaft 4 (the connection portion with the second connecting member 52b2) moves so as to stroke the side surface of the inverted cone having the bearing center O of the bearing portion 6 as the apex and the axis A of the stirring shaft 4 as the generating line. Thus, the stirring shaft 4 can be swung so that the end of the stirring shaft 4 swings in a horizontal direction around the center axis B of the drive device with the bearing center O of the bearing portion 6 as a fulcrum. (The lower part of the stirring shaft 4 moves so as to stroke the side surface of a cone having the bearing center O of the bearing portion 6 as a vertex and the axis A of the stirring shaft 4 as a generating line).

  Thus, the power from the drive device 5 is transmitted from the output shaft 52a of the rotating member 52 to the stirring shaft 4 via the link portion 52b, and the end of the stirring shaft 4 is joined to the second connecting member 52b2. Thus, the rotational motion of the output shaft 52a is converted into the turning motion of the stirring shaft 4. As described above, the stirring shaft 4 performs a turning motion with the bearing center O of the bearing portion 6 as a fulcrum, but the stirring shaft 4 itself does not rotate.

  As described above, the stirring shaft 4 itself has a configuration in which the stirring shaft 4 itself does not rotate when swiveling around the bearing center O of the bearing portion 6 as a fulcrum. However, when the stirring shaft 4 performs a turning motion, the stirring shaft 4 may rotate due to the resistance from the bearing portion 6 in contact with the stirring shaft 4. Therefore, as shown in FIG. 1, a rotation stopper 7 is provided to prevent the stirring shaft 4 from rotating.

  The rotation stopper 7 is composed of a first stopper member 71 located above and fixed to the gantry 8, and a second stopper member 72 located below and fixed to the stirring shaft 4. When viewed from the left side of FIG. 1, the first stopper member 71 has a substantially U-shaped shape in which a long hole whose major axis is the vertical direction is formed in a substantially rectangular plate as shown in FIG. 2. It is a metallic plate having a shape.

  On the other hand, the second stopper member 72 is a metallic plate having a shape that is substantially L-shaped when viewed from the front of the sheet of FIG. That is, the second stopper member 72 is formed such that the upper end of the plate extending in the vertical direction is bent in a substantially horizontal direction and the side surface shape (the shape when viewed from the front in FIG. 1) is L-shaped. ing. As shown in FIG. 2, the rotation stopper 7 is configured such that a portion 72 a bent in the horizontal direction of the second stopper 72 is inserted into the long hole portion of the first stopper 71. FIG. 2 is a view showing an example of the rotation stopper 7 provided in the stirring device 1 shown in FIG.

  For this reason, the second stop member 72 fixed to the stirring shaft 4 can swing in the vertical direction with respect to the first stop member 71, but the movement in the left-right direction is restricted. Thereby, it is possible to prevent the stirring shaft 4 from rotating. The portion 72a bent in the horizontal direction is formed in a cylindrical shape. Thereby, the movement of the agitation shaft 4 when viewed from the side shown in FIG. 2 while regulating the movement in the left-right direction shown in FIG. 2, in other words, when viewed from the side in FIG. It is possible to form a pendulum shape with a substantially central portion (the portion 72a bent in the horizontal direction).

  Moreover, in the stirring apparatus 1 of this embodiment, as shown in FIG. 1, the position of the center axis B of the drive device 5 is in agreement with the center axis (not shown) of the container 2. However, the configuration is not limited to this, and the configuration may be such that the central axis B of the drive device 5 and the central axis of the container 2 are shifted.

(Container configuration)
Next, a more detailed description of the container 2 will be given below. As shown in FIG. 1, the storage container 2 is a container for storing a stirring object in a sealed space provided inside the storage container 2.

  Although not specifically shown in FIG. 1, a supply / discharge flange portion or a connector for supplying a stirring object into the container 2 or discharging the stirring object from the container 2 to the outside. May be provided. The connector, for example, distributes the stirring object when discharging the stirring object in the container 2 to the outside, and a supply opening joined to a tube for circulating the stirring object supplied from the outside. It can be set as the structure provided with the opening part for discharge | emission to which a tube is joined. When it is not necessary to join a tube to each of the supply opening and the discharge opening, the supply opening and the discharge opening are covered with a cap so that the sealed state of the container 2 is maintained. It is preferred that Similarly, when the supply / discharge flange portion is configured, the supply / discharge flange portion may be configured to be closed.

  Here, in addition to FIG. 1, the container 2 will be described in detail with reference to FIG. FIG. 3 is a side sectional view showing an example of an arrangement relationship between the storage container 2 and the stirring shaft 4 in the stirring device 1 shown in FIG.

  As shown in FIGS. 1 and 3, the container 2 is made of a material that is small in deformation due to external pressure, and is disposed so as to protrude into the main body 21 having a space formed therein, and a stirring shaft. 4 is provided in the shape of a bottomed cylinder so as to form a space for housing 4, and includes an inner peripheral wall portion 22 that forms a sealed space for housing a stirring object together with the main body portion 21. is there.

  As shown in FIG. 3, the main body 21 is a bottomed cylindrical container having a cylindrical insertion port 21 a (so-called bottle neck) protruding upward as shown in FIG. 3. And the internal space of the main-body part 21 is connected with the exterior via the insertion port 21a, and it is comprised so that the inner peripheral wall part 22 can be accommodated in this internal space from this insertion port 21a. That is, the insertion port 21 a is provided so that the inner peripheral wall portion 22 and the stirring shaft 4 accommodated in the inner peripheral wall portion 22 can be accommodated in the main body portion 21.

  On the outer periphery of the insertion port 21a, a fitting male portion 21a1 that constitutes a joint portion 25 for attaching the inner peripheral wall portion 22 to the main body portion 21 is provided. The fitting male part 21a1 can be formed as a spiral groove provided along the outer periphery of the insertion port 21a, for example, as shown in FIG. Moreover, the opening dimension in the insertion port 21a is prescribed | regulated in the range which the stirring shaft 4 which carries out a turning motion does not contact | abut to the main-body part 21 as shown in FIG. Here, in the agitation shaft 4, the closer to the bearing center O, the smaller the swing width (range of movement in the horizontal direction) during the turning motion, so the opening size of the insertion port 21a is the bearing center O and the insertion port 21a. The closer the distance is, the smaller it can be made. That is, the opening dimension of the insertion port 21a can be defined according to the positional relationship between the bearing center O and the insertion port 21a.

  On the other hand, the inner peripheral wall portion 22 is formed in a shape along the shape of the stirring shaft 4 as shown in FIGS. Specifically, the inner peripheral wall portion 22 is formed in a bottomed cylindrical shape so as to follow the outer shape of the columnar stirring shaft 4. No spacer is interposed between the inner peripheral surface of the inner peripheral wall portion 22 and the outer peripheral surface of the stirring shaft 4, and the inner peripheral surface of the inner peripheral wall portion 22 is in contact with the outer peripheral surface of the stirring shaft 4.

  Further, as shown in FIG. 3, the inner peripheral wall portion 22 is opened upward so that the stirring shaft 4 can be accommodated at a position corresponding to the opening portion of the insertion port 21 a of the main body portion 21. Moreover, the cylindrical attachment part 24 is arrange | positioned so that the outer periphery of the insertion port 21a may be followed, and the inner peripheral wall part 22 is connected with this attachment part 24. FIG. The inner peripheral wall portion 22 is attached to the main body portion 21 through the attachment portion 24. That is, as shown in FIG. 3, the inner peripheral wall portion 22 and the attachment portion 24 are arranged to cover the insertion port 21 a of the main body portion 21.

  The attachment portion 24 has a fitting female portion 24a that is a spiral groove provided along the inner periphery of the attachment portion 24 so as to be fitted to the fitting male portion 21a1 of the insertion port 21a. Yes. Then, the attachment portion 24 is arranged so as to cover the outer periphery of the insertion port 21 a, and the fitting male portion 21 a 1 and the fitting female portion 24 a are fitted by rotating the attachment portion 24, so that the main body portion 21 is fitted. On the other hand, the inner peripheral wall portion 22 can be attached. A sealed space can be formed in the main body portion 21 by attaching the inner peripheral wall portion 22 to the main body portion 21. Thus, in the storage container 2 according to the present embodiment, the inner peripheral wall portion 22 can be attached to and detached from the main body portion 21. For this reason, for example, when there are a plurality of differently shaped stirring shafts 4, an inner peripheral wall portion 22 corresponding to each shape of the stirring shaft 4 is prepared, and the inner peripheral wall portion 22 is adjusted according to the stirring shaft 4 used in the stirring device 1. It can be appropriately selected and attached to the main body 21. In addition, the joint part 25 of this invention is implement | achieved by this fitting male part 21a1 and the fitting female part 24a.

  As described above, the inner peripheral wall portion 22 is attached to the main body portion 21 by being fitted between the inner peripheral side of the attachment portion 24 and the outer peripheral side of the insertion port 21a. For this reason, when attaching the inner peripheral wall part 22 to the main body part 21, the part where sliding occurs between both is the outer peripheral side of the insertion port 21 a of the main body part 21. Therefore, in the container 2 according to the present embodiment, when attaching the inner peripheral wall portion 22 to the main body portion 21, it is possible to prevent foreign matter generated by sliding between them from entering the main body portion 21. it can.

  In the present embodiment, the inner peripheral wall portion 22 is made of a flexible material so as to be able to move following the turning motion of the stirring shaft 4. Although it does not specifically limit as a material which has flexibility, For example, elastomers, such as rubber | gum, or a soft plastic can be used. Any soft plastic may be used as long as it can move following the turning motion of the stirring shaft 4 (can be deformed to follow).

  On the other hand, the main body portion 21 has a larger elastic modulus than the inner peripheral wall portion 22 and is less deformed by external pressure, and is self-supporting when a stirring object is accommodated, for example, hard plastic or glass, It is comprised by raw materials, such as a metal material.

  Thus, since the inner peripheral wall portion 22 has flexibility, the inner peripheral wall portion 22 can be deformed so as to follow the movement of the stirring shaft 4 that makes a turning motion. For this reason, the stirring object accommodated in the sealed space in the main body 21 can be appropriately stirred by the turning motion of the stirring shaft 4.

In addition, although the whole inner peripheral wall part 22 which concerns on this Embodiment was comprised with the material which has flexibility, only the predetermined part of the inner peripheral wall part 22 may be comprised with the material which has flexibility. More specifically, the inner peripheral wall portion 22 is a range D ₁ in part (Fig. 3 corresponding to a range where the insertion port 21a is provided, in the main body portion 21 from the open end position in the insertion opening 21a The range up to the rising start position of the insertion port 21a is only required to be made of a flexible material.

  Moreover, the cover part 26 is attached to the attachment part 24 so that the container 2 may close the opening of the inner peripheral wall part 22, as shown in FIG. FIG. 4 is a side sectional view showing an example of a state in which the lid portion 26 is attached to the container 2 shown in FIG. That is, the lid portion 26 is detachably provided on the attachment portion 24.

  For this reason, when the stirring operation is not performed, the opening of the inner peripheral wall portion 22 can be closed by the lid portion 26 with the inner peripheral wall portion 22 attached to the main body portion 21. As a result, it is possible to prevent the occurrence of a situation in which a foreign object enters the inner peripheral wall portion 22 unintentionally and damages the inner peripheral wall portion 22 from the outside.

  As described above, the storage container 2 according to the present embodiment has a configuration in which the stirring target is stored in the sealed space formed by the main body portion 21 and the inner peripheral wall portion 22. For this reason, it is possible to carry in the state which accommodated the stirring target object in the storage container 2, and a foreign material does not mix in the storage container 2 from the outside. In particular, the container 2 is made of a hard plastic or the like so that the container 2 is not deformed during transportation, is resistant to external impacts, and can be easily transported. Can do.

  In addition, the stirring device 1 according to the present embodiment can stir the stirring target object by turning the stirring shaft 4 around the bearing center O by the driving device 5. Since the stirring shaft 4 can be stored in the inner peripheral wall portion 22 of the storage container 2, the stirring target object is stored in the sealed space of the storage container 2 without directly contacting the stirring target object in the storage container 2. The stirring object can be stirred while being allowed to stand. For this reason, it is possible to prevent foreign matter from being mixed into the stirring object, and it is not necessary to replace or wash the stirring shaft 4 after the stirring work, thereby reducing the cost.

  Furthermore, in the container 2 according to the present embodiment, at least a predetermined portion of the inner peripheral wall portion 22 is made of a flexible material. For this reason, the inner peripheral wall portion 22 can be deformed following the swirling motion of the stirring shaft 4 during the stirring work, and does not hinder the swirling motion of the stirring shaft 4. Can be properly stirred. Further, since the stirring shaft 4 does not rotate during the stirring operation, it does not rub against the inner peripheral wall portion 22, and it is possible to prevent problems such as wear of the inner peripheral wall portion 22 and opening of holes.

(Modification of container)
In the container 2 described above, the fitting male part 21a1 of the insertion port 21a and the fitting female part 24a of the attachment part 24 connected to the inner peripheral wall part 22 are fitted into the main body part 21. The peripheral wall portion 22 was attached. However, the configuration of the container 2 is not limited to this. For example, as shown in FIG. 5, the storage container 2 may have a configuration in which the inner peripheral wall portion 22 is not detachable from the main body portion 21 and is fixed from the beginning. The portion 27 where the inner peripheral wall portion 22 is fixed to the main body portion 21 corresponds to the joint portion of the present invention.

  Below, with reference to FIG. 5, an example of the storage container 2 which concerns on the modification of this Embodiment is demonstrated. FIG. 5 is a side cross-sectional view showing an example of the arrangement relationship between the storage container 2 and the stirring shaft 4 according to a modification of the present embodiment.

  As shown in FIG. 5, the storage container 2 according to the modification differs from the storage container 2 according to the present embodiment in the following points. That is, the main body 21 provided in the storage container 2 according to the modified example is different in that the fitting male part 21a1 is not provided in the insertion port 21a. Further, the inner peripheral wall portion 22 provided in the container 2 according to the modification is not provided with the attachment portion 24, and a predetermined range of the end portion on the opening side of the inner peripheral wall portion 22 is fixed to the insertion port 21a in advance. It is also different. In addition, both the insertion port 21a and the inner peripheral wall part 22 can be fixed by welding, for example.

That is, a predetermined range extending from the opening end of the inner peripheral wall portion 22 to the bottom side is fixed to the insertion port 21a, and the inner peripheral wall extends from the end connected to the fixed portion 27 of the inner peripheral wall portion 22. A certain range toward the bottom of the portion 22 is made of a flexible material. More specifically, the inner circumferential wall 22 is preferably to be composed of a material having a boundary D ₂ parts of at least anchoring portion flexible. About the point other than that, since the container 2 which concerns on a modification is the same as the container 2 which concerns on above-described this Embodiment, description is abbreviate | omitted.

  Here, when the container 2 according to the modification is used, as shown in FIG. 5, the agitation shaft 4 is disposed so that the bearing center O is located in or near the space formed in the insertion port 21a. Is preferable. When the stirring shaft 4 is arranged in this way, the swing width of the stirring shaft 4 in the insertion port 21a is reduced, and the diameter of the insertion port 21a can be reduced.

  Furthermore, as shown in FIG. 1, the stirring shaft 4 has a flange portion that protrudes in the circumferential direction about the central axis A of the stirring shaft below the bearing portion 6. Here, when the configuration of the agitation shaft 4 is not provided with the flange portion as shown in FIG. 5, the diameter of the insertion port 21a can be further reduced.

  In addition, the structure provided with the cover part 26 may be sufficient as the container 2 which concerns on a modification like the container 2 which concerns on above-described embodiment.

  From the foregoing description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

  For example, a baffle plate or the like may be installed in the storage container 2. Also in this case, the baffle plate itself is configured not to directly contact the stirring object as in the case of the stirring shaft 4 of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can prevent external contamination particularly in production processes in the pharmaceutical and chemical fields, and can effectively stir a stirring object.

DESCRIPTION OF SYMBOLS 1 Stirring apparatus 2 Container 4 Stirring shaft 5 Drive apparatus 6 Bearing part 7 Anti-rotation part 8 Base 21 Main body part 21a Insertion port 21a1 Fitting male part 22 Inner peripheral wall part 24 Attachment part 24a Fitting female part 25 Joining part 26 Lid Part 27 Attached part 51 Actuator 52 Rotating member 52a Output shaft 52b Link part 52b1 First connecting member 52b2 Second connecting member 71 First stopping member 72 Second stopping member 72a Horizontally bent part A Center of stirring shaft Axis B Center axis of drive unit O Bearing center

Claims (5)

A stirring shaft for stirring the stirring object;
A bearing that supports the stirring shaft;
And a drive device for turning the stirring shaft so that the end of the bearing portion swings in a circle with the bearing center as a fulcrum. ,
A main body part made of a material that is small in deformation due to external pressure and having a space formed therein,
A closed space that is disposed so as to protrude into the main body, is provided in a bottomed cylindrical shape so as to form a space for storing the stirring shaft, and stores the stirring object together with the main body. An inner peripheral wall forming
A joint for joining the main body and the inner peripheral wall;
A container in which at least a part of the inner peripheral wall portion is flexible so as to bend following the swirling motion of the stirring shaft. The main body portion is defined in a range that protrudes upward on the upper surface of the main body portion to receive the inner peripheral wall portion and the stirring shaft housed in the inner peripheral wall portion and does not hinder the turning motion of the stirring shaft. Provided with a cylindrical insertion port having an inner diameter dimension,
The joint is provided in the insertion port,
The container according to claim 1, wherein a part of the inner peripheral wall portion having flexibility is an end portion of the inner peripheral wall portion connected to the joint portion.   The storage container according to claim 2, wherein the joint portion removably joins the inner peripheral wall portion to the main body portion.   The said main-body part is a storage container of any one of Claim 1 to 3 comprised by the hard plastic whose elastic modulus is larger than the part which has the flexibility of the said internal peripheral wall part. A stirring shaft for stirring the stirring object;
A bearing that supports the stirring shaft;
A drive device for turning the stirring shaft so that the end portion swings in a circle with the bearing center of the bearing portion as a fulcrum;
A storage container for storing the stirring object,
The container is
A main body part made of a material that is small in deformation due to external pressure and having a space formed therein,
A closed space that is disposed so as to protrude into the main body, is provided in a bottomed cylindrical shape so as to form a space for storing the stirring shaft, and stores the stirring object together with the main body. An inner peripheral wall forming
A joint for joining the main body and the inner peripheral wall;
An agitation device in which at least a part of the inner peripheral wall portion is flexible so as to bend following the swirling motion of the agitation shaft.

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