JP2005329178A - Stirrer vane and stirring device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stirrer vane capable of suppressing adhesion of a matter to be stirred and improving the uniformity of stirring. <P>SOLUTION: The stirrer vane 30 which is rotated in a container 3 and stirs the matter to be stirred (for example, ingredients of a fried rice) in the container has spiral shafts 31a to 31d, a large number of stirring portions 32 extending from the spiral shafts in a centrifugal direction. The plurality of the spiral shafts are preferably arranged so as to form a multiple spiral structure. Further, it is preferable that the spiral shafts pass through the peripheral surface of a column the ratio (D/P) of the spiral diameter D of the spiral shafts and the spiral pitch interval P of the spiral shaft is 0.1 to 0.7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stirring blade and a stirring device using the stirring blade, and more particularly to a stirring blade that can suppress adhesion of an object to be stirred and improve the uniformity of stirring, and a stirring device using the stirring blade.

As a conventional stirring device, a container rotated about a vertical axis, a stirring blade rotated about a horizontal axis in the container to stir the object to be stirred, and a heating means for heating the container from below Are known (for example, see Patent Document 1). Thereby, the ingredients (stirred thing) of a large amount of fried food used for lunch etc. can be heated, stirring uniformly.
Here, in Patent Document 1, the stirring blade has a central axis (stirring shaft 31) extending along the rotation axis thereof, and a large number of stirring portions (stirring bowl 32) extending in the centrifugal direction from the central axis, It is configured with. Further, the amount of the stir-fried ingredients placed in the container is usually set so that the height of the stir-fry is lower than the central axis of the stirring blade.

However, in Patent Document 1 described above, when the stirrer blades are rotated to stir and heat the ingredients of the stir-fry, the stirrer constituting the stirrer blades repeatedly enters and exits the stir-fry ingredients. However, since the central axis constituting the stirring blade is not always in contact with the ingredients of the stir-fried food, the raw ingredients scraped up by the stirring unit adhere to the central axis, and the adhesion lasts for a long time. There is a case. In that case, there was a risk that the raw ingredients adhering to the central shaft would fall into the finished stir-fried food. Therefore, it has been necessary to manually inspect the finished fried food and monitor the adhesion of ingredients to the central shaft.
Moreover, in the said patent document 1, by the centrifugal force of the container rotated around a vertical axis | shaft, the stir-fry thing tends to gather near the centrifugal side in the container, and the uniformity of stirring could not be improved further.
Further, in Patent Document 1, since one central axis is formed with a relatively large diameter and high rigidity, when an excessive load is applied to the stirring blades (for example, when the stirring blades are accidentally collided, dropped, etc.) Etc.), the central axis itself is bent, making it difficult to reuse.

JP 2001-340225 A

  As described above, the present invention has been made in view of the above-described present situation, and an object of the present invention is to provide a stirring blade capable of suppressing the adhesion of an object to be stirred and improving the uniformity of stirring. Another object of the present invention is to provide a suitable stirring device using the stirring blade.

The present invention is as follows.
1. In a stirring blade that is rotated in a container and stirs the object to be stirred in the container,
A stirring blade comprising: a spiral shaft; and a plurality of stirring portions extending in a centrifugal direction from the spiral shaft.
2. A plurality of the helical shafts are provided so as to form a multiple helical structure. The stirring blade described.
3. A first fixing member to which one end of each of the plurality of helical shafts is fixed; a second fixing member to which each other end of each of the plurality of helical shafts is fixed; and the first fixing member. And a central axis extending along the axial direction of the spiral axis on the opposite side of the spiral axis. The stirring blade described.
4). The helical axis passes through the circumferential surface of the cylinder, and the ratio (D / P) of the helical diameter (D) of the helical axis to the helical pitch interval (P) of the helical axis is 0.1 to 0.7. 1 above. To 3. The stirring blade as described in any one of these.
5). The above-described 1. The stirring portion includes a base shaft portion extending in the centrifugal direction of the spiral shaft and a tip shaft portion extending in the axial direction of the spiral shaft from the tip side of the base shaft portion. To 4. The stirring blade as described in any one of these.
6). 4. The tip shaft portion inclined at a predetermined angle (a1) with respect to the axial center direction of the spiral shaft. The stirring blade described.
7). The aforesaid 1. wherein the plurality of agitating portions are provided on the helical shaft at an equal pitch angle (a2). To 6. The stirring blade as described in any one of these.
8). 1. The spiral shaft and the stirring unit are covered with a fluororesin layer. To 7. The stirring blade as described in any one of these.
9. Above 1. To 8. A stirring blade according to any one of the above, a container that is rotatably provided around the vertical axis and that contains an object to be stirred, and a supporting means that rotatably supports the stirring blade around the horizontal axis within the container. And a rotation driving means for rotating the stirring blade supported by the support means.
10. 8. The heating device further comprising a heating means for heating the object to be stirred in the container. The stirrer described.
11. 10. The heating method described above in which the heating means is an electromagnetic induction heating type and / or a steam heating type. The stirrer described.
12 8. The above-described 9. further comprising a scraping member supported by the support means, disposed on the stirring downstream side of the stirring blade and extending along the axial direction of the stirring blade. To 11. The stirring apparatus as described in any one of these.
13. 8. A guide member supported by the support means and further provided on the centrifugal side of the container on the downstream side of the stirring blade. To 12. The stirring apparatus as described in any one of these.
14 8. The above-described 9. further comprising rocking means for rocking the container around a horizontal axis. Thru 13. The stirring apparatus as described in any one of these.

According to the stirring blade of the present invention, when the stirring blade is rotated in the container, the stirring object is guided and moved to the centripetal side of the container by the rotation of the helical shaft, and the stirring object is scraped by the rotation of the stirring unit. Raised. As a result, when stirring the object to be stirred, the stirring unit and the helical shaft constituting the stirring blade repeatedly enter and exit from the object to be stirred. Adhesion of the object to be stirred is suppressed. Further, the uniformity of stirring can be improved by eliminating the deviation of the object to be stirred in the container.
In addition, when a plurality of the helical shafts are provided so as to form a multiple helical structure, it is possible to more efficiently guide the object to be stirred in the container to the centripetal side. In addition, each helical shaft can be made elastic by setting its diameter to a relatively small diameter, and can be easily restored by elastic deformation even if an excessive load is applied to the stirring blade.
Further, when the first fixing member, the second fixing member, and the central axis are further provided, each helical axis can be fixed and supported more firmly.
The spiral axis passes through the circumferential surface of the cylinder, and the ratio (D / P) of the spiral diameter (D) of the spiral axis to the spiral pitch interval (P) of the spiral axis is 0.1-0. .7, the stirring object in the container can be guided more efficiently to the centripetal side.
Moreover, when the said stirring part consists of a base shaft part and a front-end | tip shaft part, the raising efficiency of the to-be-stirred object by a stirring part can be improved more.
When the tip shaft portion is inclined at a predetermined angle (a1) with respect to the axial center direction of the spiral shaft, the stirring target is scraped up toward the centripetal side of the container by the stirring portion. The to-be-stirred object in the container can be guided more efficiently to the centripetal side.
Moreover, when the said many stirring parts are provided in the said helical axis | shaft with the equal pitch angle (a2), the uniformity of stirring can be improved more.
Moreover, when the said helical shaft and the said stirring part are coat | covered with the fluororesin layer, adhesion of the to-be-stirred object to a helical shaft and a stirring part can be suppressed more reliably. Further, cleaning and the like can be facilitated and scratches can be prevented.

According to the stirring device of the present invention, when the container in which the object to be stirred is rotated around the vertical axis and the stirring blade is rotated around the horizontal axis in the container, the object to be stirred is rotated by the rotation of the spiral shaft. While being guided and moved to the centripetal side of the container, the stirring target is scraped up by the rotation of the stirring unit. As a result, when stirring the object to be stirred, the stirring unit and the helical shaft constituting the stirring blade repeatedly enter and exit from the object to be stirred. Adhesion of the object to be stirred is suppressed. Further, the uniformity of stirring can be improved by eliminating the deviation of the object to be stirred in the container.
Moreover, when a heating means is further provided, the object to be stirred can be heated uniformly while stirring uniformly. In particular, stir-fried foods with little stickiness can be suitably produced.
Moreover, when the said heating means is an electromagnetic induction heating type and / or a steam heating type, a to-be-stirred thing can be heated more efficiently.
Further, when the scraping member is further provided, the object to be stirred that has been scraped up by the stirring blade can be scraped again, and the object to be stirred can be further uniformly stirred.
Further, when the guide member is further provided, the stirring object in the container can be guided more efficiently to the centripetal side.
Furthermore, when the rocking means is further provided, for example, the stirring object can be stirred while rocking the container, and the stirring efficiency can be further improved.

1. Stirrer blade The agitator blade according to the present invention includes a helical shaft and a stirrer described below. The stirring blade can include, for example, a first fixing member, a second fixing member, and a central axis described later.

  The “spiral shaft” is not particularly limited as long as it is a shaft extending in a spiral shape. Examples of the planar shape through which the spiral axis passes include, for example, one or more of a cylindrical peripheral surface, a truncated cone peripheral surface, a conical peripheral surface, a prismatic peripheral surface, a truncated pyramid peripheral surface, and a pyramidal peripheral surface. Can be mentioned. From the viewpoint of uniformity of stirring, the helical axis is preferably an axis passing through the cylindrical circumferential surface. In addition, examples of the longitudinal cross-sectional shape of the helical shaft include a circular shape, an elliptical shape, a rectangular shape, a cylindrical shape, an elliptical cylindrical shape, a rectangular cylindrical shape, and an irregular shape. Of these, a circular shape is preferable.

  In addition, examples of the material of the spiral shaft include metals and synthetic resins. From the viewpoint of strength and heat resistance, the helical shaft is preferably made of metal (particularly stainless steel). Furthermore, it is preferable that the helical shaft is covered with a fluororesin layer.

  Further, the number of the helical shafts is not particularly limited, and one or two or more can be provided. From the viewpoint of the guideability and strength of the object to be stirred toward the centripetal side, it is preferable that two or more helical shafts are provided so as to form a multiple helical structure. In particular, it is preferable that four helical shafts are provided.

  Here, when the spiral axis passes through the circumferential surface of the cylinder, the ratio (D / P) of the spiral diameter D to the spiral pitch interval P is 0.1 to 0.7, as shown in FIG. It is preferable that it is 2-0.6, especially 0.3-0.5. Thereby, the guide efficiency to the centripetal side of the container of the stirring object by rotation of a helical shaft can be improved more. In addition, the said spiral diameter D can be 50-200 mm (preferably 70-150 mm), for example. Moreover, the said helical pitch space | interval P can be 100-500 mm (preferably 200-300 mm), for example.

  The shape, number, material, etc. of the “stirring portion” are not particularly limited as long as a large number of the “stirring portions” are formed extending in the centrifugal direction from the spiral shaft. As this stirring part, a rod-shaped body, a plate-shaped body, a block-shaped body, etc. can be mentioned, for example. From the viewpoint of processability and stirring properties, the stirring portion is preferably a rod-shaped body.

  Here, when the agitating part is a rod-like body, the agitating part is composed of, for example, only a base shaft part extending in the centrifugal direction of the helical shaft, and can be formed in a substantially I shape as a whole. From the viewpoint of the stirring ability of the object to be stirred, the stirring portion is composed of a base shaft portion extending in the centrifugal direction of the spiral shaft and a tip shaft portion extending in the axial direction of the spiral shaft from the tip side of the base shaft portion. The overall shape is preferably substantially L-shaped. In this case, the tip shaft portion can extend substantially in parallel with the axial direction of the spiral shaft, for example. From the viewpoint of the efficiency of guiding the object to be stirred toward the centripetal side, the tip shaft portion is preferably inclined at a predetermined angle a1 with respect to the axial direction of the helical shaft (see FIG. 5). In addition, it is preferable that this predetermined angle a1 is 3 to 30 degree | times, 5 to 20 degree | times, especially 7 to 17 degree | times from a viewpoint of the guide efficiency of a to-be-stirred object, and the balance of stirring property (scraping property).

  Moreover, the said stirring part can be provided in the helical axis | shaft with the unequal pitch angle, for example. From the viewpoint of uniformity of stirring, it is preferable that the stirring unit is provided on the spiral shaft at an equal pitch angle a2 (see FIG. 6). The equal pitch angle a2 can be about 45 degrees, for example.

  Moreover, as a material of the said stirring part, a metal, a synthetic resin, etc. can be mentioned, for example. From the viewpoints of strength and heat resistance, the stirring portion is preferably made of metal (particularly, stainless steel). Furthermore, it is preferable that the stirrer is covered with a fluororesin layer.

  The “first fixing member” is not particularly limited in shape, size, material, or the like as long as one end of each of the plurality of helical shafts can be fixed. The first fixing member can be, for example, a flat plate shape. Moreover, as a material of this 1st fixing member, a metal, a synthetic resin, etc. can be mentioned, for example. From the viewpoints of strength and heat resistance, the first fixing member is preferably made of metal (particularly, stainless steel). Further, the first fixing member is preferably covered with a fluororesin layer.

  The “second fixing member” is not particularly limited in shape, size, material, and the like as long as the other end of each of the plurality of helical shafts can be fixed. This second fixing member can be, for example, an annular plate. Moreover, as a material of this 2nd fixing member, a metal, a synthetic resin, etc. can be mentioned, for example. From the viewpoint of strength and heat resistance, the second fixing member is preferably made of metal (particularly, stainless steel). Further, the second fixing member is preferably covered with a fluororesin layer.

  The “center axis” is not particularly limited as long as it is provided on the first fixing member and extends along the axial direction of the spiral axis on the opposite side of the spiral axis. In the use state of the stirring blade, this central axis is usually linked to the rotation driving means of the stirring device described later. In addition, examples of the material of the central shaft include metals and synthetic resins. From the viewpoints of strength and heat resistance, the central axis is preferably made of metal (particularly stainless steel).

  In addition, although the kind in particular of said "stirred thing", a use, etc. do not ask | require, it is preferable that this to-be-stirred thing is a foodstuff. Examples of the food material include stir-fried ingredients, vinegared rice, rice cakes, mixed rice, and the like. This point is similarly applied to the following inventions.

2. Stirrer The stirrer according to the present invention includes the above-described stirring blade, a container described below, support means, and rotation drive means. The stirring device can include, for example, at least one of a heating unit, a scraping member, a guide member, and a swinging unit, which will be described later.

The “container” is not particularly limited in shape, size, material, and the like as long as it is provided so as to be rotatable around the vertical axis and can accommodate an object to be stirred. Examples of the container include a pan-like body, a tray-like body, and a dish-like body. Moreover, as a material of this container, a metal, a synthetic resin, etc. can be mentioned, for example. From the viewpoint of strength and heat resistance, the container is preferably made of metal (particularly stainless steel).
The “vertical axis” includes an axis slightly inclined from the vertical axis.

The “support means” is not particularly limited in its structure, support form, or the like as long as the stirring blade can be rotatably supported around the horizontal axis in the container. For example, the support means can displace the stirring blade between a stirring position in the container and a retracted position outside the container.
The “horizontal axis” includes an axis slightly inclined from the horizontal axis.

  As long as the “rotation drive means” can rotate the stirring blade supported by the support means, its structure, drive form, etc. are not particularly limited. This rotation drive means can have, for example, a drive motor and a transmission mechanism (for example, a belt transmission mechanism) that transmits the rotation of the drive shaft of the drive motor to the central axis of the stirring blade.

  As long as the “heating means” can heat the object to be stirred in the container, its structure, heating form, etc. are not particularly limited. Examples of the heating means include one in combination of one or more of an electromagnetic induction heating type, a steam heating type (preferably a superheated steam type), a burner heating type, and an electric heating type. it can. From the viewpoint of heating efficiency, the heating means is preferably an electromagnetic induction heating type and / or a steam heating type.

  As long as the “scraping member” is supported by the support means, is disposed on the downstream side of the stirring blade and extends along the axial direction of the stirring blade, its shape, size, material, etc. It doesn't matter. This scraping member can be detachably supported by the support means, for example. In addition, the scraping member can have, for example, a slope extending obliquely rearward from the bottom surface of the container. Further, examples of the scraping member include a block shape and a flat plate shape. Further, examples of the scraping member include synthetic resin and metal.

  The “guide member” is not particularly limited in shape, size, material, and the like as long as it is supported by the support means and disposed on the centrifugal side of the container on the downstream side of the stirring blade. For example, the guide member can be detachably supported by the support means. In addition, the guide member can have, for example, a slope extending obliquely rearward from the inner peripheral wall surface of the container. In addition, examples of the guide member include a block shape and a flat plate shape. Furthermore, examples of the guide member include synthetic resin and metal.

  The “swinging means” is not particularly limited in its structure, swinging form, etc. as long as the container can be swung around the horizontal axis. This swinging means can have, for example, a swing shaft for swinging the container and a swing motor for swinging the swing shaft. The swinging means can be used in, for example, (1) a form in which the container is swung while stirring the object to be stirred, and (2) a container is swung to perform the auxiliary function of stirring. The form which discharges a stirring thing, (3) The form which rocks a container and performs maintenance of a container, etc. can be mentioned.

Hereinafter, the present invention will be described in detail with reference to the drawings.
In this embodiment, a stirrer is illustrated as the “stirring device” according to the present invention. Moreover, the ingredient of fried rice is illustrated as a "stirred thing" which concerns on this invention.

(1) Structure of stirrer As shown in FIGS. 1 and 2, the stirrer 1 according to the present embodiment includes a stirring blade 30 and a pan-like body 3 (illustrated as a “container” according to the present invention). Basically composed.

The pan-like body 3 is made of stainless steel, and has a pan portion 3a for storing the ingredients of the fried rice, and a coil storage portion 3b for storing the coil 4 below the pan portion 3a. A high-frequency current is passed through the coil 4 to generate an eddy current in the pot portion 3a, and the pot portion 3a can be heated by the Joule heat.
Here, it can be said that the "heating means" according to the present invention is constituted by the coil 4, the coil housing portion 3b, and the like.

The pan-like body 3 is supported by the lower support 6 so as to be rotatable around a vertical axis, and is driven in a predetermined direction C1 (see FIG. 1) by the action of the drive motor 7 provided on the lower surface of the lower support 6. It is designed to rotate. The lower support 6 is connected to a swing shaft 9 provided on the left and right machine bases 8a and 8b facing each other. The swing shaft 9 is driven to swing by the action of a drive motor (not shown). Therefore, by swinging the swing shaft 9, the pan-like body 3 can swing around the horizontal axis within a predetermined angular range (for example, ± 75 degrees with respect to the horizontal).
Here, it can be said that the “swinging means” according to the present invention is constituted by the swinging shaft 9 and the drive motor.

One machine base 8a is provided with a lifting body 10 that can be moved up and down and rotated. One end of the support arm 11 is fixed to the upper part of the lifting body 10. A blade support 12 that supports the stirring blade 30 so as to be rotatable about a horizontal axis is fixed to the other end of the support arm 11. Therefore, the stirring blade 30 can be displaced between the stirring position A located in the pot portion 3a and the retreat position B positioned outside the pot portion 3a by moving the lifting body 10 up and down and rotating. (See FIG. 1).
Here, it can be said that the “supporting means” according to the present invention is constituted by the lifting body 10, the support arm 11, the blade support body 12, and the like.

As shown in FIG. 3, a cylindrical connecting shaft 14 is supported inside the blade support 12 so as to be rotatable around a horizontal axis. A center shaft, which will be described later, constituting the stirring blade 30 can be mounted in the connecting shaft 14. The blade support 12 includes a drive motor 15 and a belt transmission mechanism 16 that transmits the power of the drive motor 15 to the connecting shaft 14. And the stirring blade 30 is rotationally driven by the effect | action of the drive motor 15 to the predetermined direction C2 (refer FIG. 4).
Here, it can be said that the “rotation drive means” according to the present invention is configured by the drive motor 15, the belt transmission mechanism 16, and the like.

  Further, as shown in FIG. 4, a triangular block-shaped scraping member 19 made of a fluororesin is removably supported on the blade support 12 via a support plate 18. The scraping member 19 is disposed on the downstream side of the stirring blade 30 and extends along the axial direction of the stirring blade 30 (see FIGS. 1 and 2). The scraping member 19 has a slope 19a extending obliquely rearward from the bottom surface of the pan portion 3a.

  Further, as shown in FIG. 1, a flat plate-like guide member 22 made of a fluororesin is detachably supported in the middle of the support arm 11 via a support plate 21. The guide member 22 is disposed on the downstream side of the stirring blade 30 and closer to the centrifuge of the pan portion 3a. Moreover, this guide member 22 has the slope 22a extended diagonally back from the inner peripheral wall surface of the pan part 3a.

(2) Structure of stirring blade Next, the structure of the stirring blade 30 will be described.
As shown in FIGS. 5 and 6, the stirring blade 30 according to the present embodiment basically includes four spiral shafts 31 a, 31 b, 31 c, 31 d and a large number of stirring units 32.

  Each of the helical shafts 31a to 31d is a stainless steel shaft having a predetermined diameter (about 6 mm), and the outer periphery thereof is covered with a fluororesin layer. Further, a multi-helical structure is formed by the helical shafts 31a to 31d. Each of the helical shafts 31a to 31d passes through the circumferential surface of the cylinder, the helical diameter D is set to about 100 mm, and the helical pitch interval P is set to about 240 mm. Therefore, the ratio (D / P) between the spiral diameter D and the spiral pitch interval P is about 0.42.

  Each said stirring part 32 is welded by the equal pitch angle a2 (about 45 degree | times) to each helical shaft 31a-31d so that it may extend in a centrifugal direction from each helical shaft 31a-31d. Each stirring section 32 is a substantially L-shaped shaft made of stainless steel having a predetermined diameter (about 6 mm), and the outer periphery thereof is covered with a fluororesin. Each stirring section 32 has a base shaft portion 32a extending in the centrifugal direction of the spiral shafts 31a to 31d, and a predetermined angle a1 (from the distal end side of the base shaft portion 32a with respect to the axial direction of the spiral shafts 31a to 31d. Tip shaft portion 32b extending at an angle of approximately 10 degrees).

  In addition, one end of each of the spiral shafts 31a to 31d is welded to the first fixing member 33 made of stainless steel, and the other end of each of the spiral shafts 31a to 31d is made of stainless steel. It is welded to the annular plate-like second fixing member 34. A stainless center shaft 35 extending along the axial direction of each of the spiral shafts 31a to 31d is welded to the first fixing member 33 on the side surface opposite to the spiral shafts 31a to 31d. The central shaft 35 can be connected to and released from the connecting shaft 14 (see FIG. 3).

(3) Operation of the stirrer Next, the operation of the stirrer 1 having the above configuration will be described.
First, the stirring blade 30 is positioned at the stirring position A inside the pot portion 3 a of the pot-shaped body 3. At this time, the scraping member 19 and the guide member 22 are disposed on the downstream side of the stirring blade 30. From that state, a predetermined amount of fried rice ingredients (for example, cooked rice, vegetables, meat, etc.) are put into the pot portion 3a. Next, the drive motor 7 is driven to rotate the pan-like body 3 in the predetermined direction C1, and the drive motor 15 is driven to rotate the stirring blade 30 in the predetermined direction C2. Further, a high frequency current is passed through the coil 4 to cause the pan portion 3a to generate heat.

Then, the ingredients of the fried rice heated by the pan portion 3a pass through the stirring blade 30 and the scraping member 19 in this order. Then, when the ingredients of the fried rice pass through the stirring blade 30, they are guided and moved to the centripetal side of the pot portion 3a by the rotation of the respective helical shafts 31a to 31d, and are scraped up by the rotation of the respective stirring portions 32. . Furthermore, the ingredients of the fried rice at the bottom of the pan are scraped up by the lifting member 19. In addition, the ingredients of the fried rice that passes through the scraping member 19 and is on the centrifugal side of the pan portion 3 a are guided to the centripetal side of the pan portion 3 a by the guide member 22.
In addition, when stirring and heating the ingredients of the fried rice, the pan-like body 3 may be swung around the horizontal axis by the swing drive of the swing shaft 9.

(4) Effect of Example As described above, in this example, the four helical shafts 31a to 31d having a multi-helical structure, and the multiple stirring units 32 extending in the centrifugal direction from the helical shafts 31a to 31d, When the stirring blade 30 is rotated in the pan portion 3a, the stirring portion 32 and the helical shafts 31a to 31d constituting the stirring blade 30 enter the ingredients of the fried rice. -It repeats to escape and the adhesion of the raw material with respect to the helical shafts 31a-31d and the stirring part 32 is suppressed by both contact. As a result, it is possible to prevent raw ingredients from being mixed into the finished fried rice. Moreover, since the ingredients of the fried rice are guided and moved to the centripetal side of the pot portion 3a by the rotation of the multi-helix structure, the deviation of the ingredients of the fried rice in the pot portion 3a is eliminated and the uniformity of stirring is improved. Can be made. Furthermore, the diameter of each of the spiral shafts 31a to 31d can be set to a relatively small diameter (about 6 mm), the stirring blade 30 as a whole can have a resilient shape, and even if an excessive load is applied to the stirring blade 30, It can be easily restored by elastic deformation.

  Further, in this embodiment, each of the helical shafts 31a to 31d passes through the cylindrical circumferential surface, and the ratio (D / P) between the helical diameter D and the helical pitch interval P is set to 0.42. By rotating the structure, the ingredients of the fried rice can be guided and moved to the centripetal side of the pan portion 3a more efficiently.

  Further, in this embodiment, since the L-shaped stirring unit 32 composed of the base shaft portion 32a and the tip shaft portion 32b is adopted, the ingredients of the fried rice are made of the pot portion 3a by the rotation of a large number of stirring portions 32. It is scraped up toward the centripetal side, and the ingredients of the fried rice can be guided and moved to the centripetal side of the pot portion 3a more efficiently.

  Further, in this embodiment, a large number of stirring sections 32 are provided on each of the helical shafts 31a to 31d at an equal pitch angle a2 (about 45 degrees), so that the uniformity of stirring by the rotation of the large number of stirring sections 32 is achieved. It can be improved further.

  Further, in this embodiment, since each of the spiral shafts 31a to 31d and the stirring unit 32 are coated with the fluororesin layer, the raw material is more reliably attached to the spiral shafts 31a to 31d and the stirring unit 32. Can be suppressed. Further, cleaning and the like can be facilitated and scratches can be prevented.

  Further, in this embodiment, the ingredients of the fried rice scraped up by the stirring blade 30 are scraped up by the scraping member 19 and guided and moved by the guide member 22 to the centripetal side of the pan portion 3a. Can be evenly stirred and can be more efficiently guided to the centripetal side of the pot portion 3a.

  Moreover, in the present Example, since the pan part 3a was heated by the electromagnetic induction type, the ingredients of the fried rice can be heated evenly, and the fried rice with less stickiness can be provided.

In the present invention, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention based on the purpose and application. That is, in this embodiment, the four helical shafts 31a to 31d form a multiple helical structure. However, the present invention is not limited to this. For example, the multiple helical shafts 31a to 31d can be multiplexed with two, three, or five or more helical shafts. A spiral structure can be formed, or only one spiral axis can be used.
Further, in the present embodiment, the substantially L-shaped stirring portion 32 including the base shaft portion 32a and the tip shaft portion 32b is illustrated, but the present invention is not limited thereto, and for example, the substantially I-shaped stirring including only the base shaft portion 32a. May be used.
Moreover, in the present Example, although the stirrer 1 which stirs and heats foodstuffs etc. was illustrated as a stirring apparatus, it is not limited to this, For example, it is good also as a stirrer which only stirs foodstuffs.
In the present embodiment, the electromagnetic induction heating type is exemplified as the heating means, but the invention is not limited thereto. For example, instead of the electromagnetic induction heating type heating means, steam (preferably superheated steam) is given in the pan portion. Steam heating type heating means may be provided, or in addition to electromagnetic induction heating type heating means, steam heating type heating means may be provided.

  This is used as a technique for stirring an object to be stirred. In particular, it is suitably used as a technique for heating foods such as fried food while stirring.

It is a top view of the stirring apparatus which concerns on a present Example. It is an II arrow directional view of FIG. It is a principal part expanded sectional view of FIG. It is IV arrow line view of FIG. It is a side view of the stirring blade which concerns on a present Example. FIG. 6 is a view on arrow VI in FIG. 5.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1; Stir-fry machine, 3; Pan-like body, 4; Coil, 9; Oscillating shaft, 10; Lifting body, 11; Support arm, 12: Blade support body, 15: Drive motor, 16; Raising member, 22; guide member, 30; stirring blade, 31a to 31d; spiral shaft, 32; stirring portion, 32a; base shaft portion, 32b; tip shaft portion, 33; first fixing member, 34; Member 35; central axis.

Claims (14)

In a stirring blade that is rotated in a container and stirs the object to be stirred in the container,
A stirring blade comprising: a spiral shaft; and a plurality of stirring portions extending in a centrifugal direction from the spiral shaft.   The stirring blade according to claim 1, wherein a plurality of the helical shafts are provided so as to form a multiple helical structure.   A first fixing member to which one end of each of the plurality of helical shafts is fixed; a second fixing member to which each other end of each of the plurality of helical shafts is fixed; and the first fixing member. The stirring blade according to claim 2, further comprising a central axis provided on the opposite side of the spiral axis and extending along the axial direction of the spiral axis.   The helical axis passes through the circumferential surface of the cylinder, and the ratio (D / P) of the helical diameter (D) of the helical axis to the helical pitch interval (P) of the helical axis is 0.1 to 0.7. The stirring blade according to any one of claims 1 to 3.   The said stirring part consists of the base shaft part extended in the centrifugal direction of the said helical shaft, and the front end shaft part extended in the axial center direction of the said helical shaft from the front end side of this base shaft part. The stirring blade according to one item.   The stirring blade according to claim 5, wherein the tip shaft portion is inclined at a predetermined angle (a1) with respect to an axial direction of the spiral shaft.   The stirring blade according to any one of claims 1 to 6, wherein the plurality of stirring portions are provided on the spiral shaft at an equal pitch angle (a2).   The stirring blade according to any one of claims 1 to 7, wherein the spiral shaft and the stirring portion are covered with a fluororesin layer.   The stirring blade according to any one of claims 1 to 8, a container provided rotatably around the vertical axis and containing an object to be stirred, and the stirring blade rotatable around the horizontal axis within the container. A stirring device comprising: a supporting means for supporting the stirring blade; and a rotation driving means for rotating the stirring blade supported by the supporting means.   The stirring device according to claim 9, further comprising heating means for heating the object to be stirred in the container.   The stirring device according to claim 10, wherein the heating means is an electromagnetic induction heating type and / or a steam heating type.   The stirring according to any one of claims 9 to 11, further comprising a scraping member supported by the support means, disposed on the downstream side of stirring of the stirring blade and extending along the axial direction of the stirring blade. apparatus.   The stirring device according to any one of claims 9 to 12, further comprising a guide member supported by the support means and disposed on the centrifugal side of the container on the downstream side of stirring of the stirring blade.   The stirring device according to any one of claims 9 to 13, further comprising a swinging means for swinging the container around a horizontal axis.

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