JP2011156226A - Automatic blender - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic blender having an automatically descending and ascending lid for preventing a finely cut and crushed food material from being dispersed from a cup, wherein the cup does not ascend together with the lid. <P>SOLUTION: In the automatic blender 10, a lid 61 covering a top opening of the cup 20 laid on a container table 30 and a rotary blade 44 are controlled so as to automatically move in a vertical direction, a fitting recessed part 31 to which a bottom of the cup 20 fits is provided in the container table 30, a plurality of projections 21 inclined at a predetermined angle from a vertical direction to a horizontal direction are provided on a bottom peripheral face of the cup 20, and a plurality of recessed grooves 32 to which the projections 21 of the cup 20 inclined at the predetermined angle from the vertical direction to the parallel direction are slidably engaged in the vertical direction are provided on an inner peripheral face of the fitting recessed part 31 of the container table 30. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an automatic mixer for crushing ingredients made of fruits, vegetables, beverages and the like to make juice.

  Prior to the present invention, the applicant of the present application has developed an automatic mixer that chops foods made of fruits, vegetables, beverages, etc. into juice. This automatic mixer is a device for making juice by directly chopping ingredients directly in the cup 2 provided to the customer, and the chopped ingredients are scattered from the rotary blade 6 and the cup 2 that smash the ingredients. The lid 7 for preventing the movement is automatically raised and lowered. As shown in FIG. 8, this automatic mixer has a container base 3 for placing a cup 2 containing foods such as fruits and beverages in the lower part of a housing 1, and an upper and lower sides above the cup 2 placed on the container base 3. A rotary shaft 5 that is movably provided in the direction and rotated by the motor 4, a rotary blade 6 that is attached to the lower end of the rotary shaft 5 and finely cuts the food in the cup 2, and a position that is above the rotary blade 6. The lid 7 is supported by the rotary shaft 5 and covers the upper opening of the cup 2.

  This automatic mixer finely breaks the ingredients in the cup 2 placed on the container table 3 into the juice by the control shown below. When the cup 2 containing foods such as fruits is placed on the container base 3 and a switch of an operation panel (not shown) is turned on, the rotary shaft 5 is lowered from a position above the cup 2 by driving the lifting / lowering motor 8. . As a result, the lid 7 covers the upper opening of the cup 2, and the rotary blade 6 is positioned in the cup 2. When the rotary shaft 5 is lowered to the position where the rotary blade 6 is accommodated in the cup 2, the rotary blade 6 is moved by the motor 4 while moving the rotary blade 6 in the cup 2 several times in the vertical direction by driving the elevating motor 8. Rotate. As a result, the ingredients in the cup 2 are finely chopped to produce a fruit juice or the like. Next, when the rotary shaft 5 is raised to the upper side of the cup 2 by driving the lifting / lowering motor 8, the lid 7 is lifted away from the upper opening of the cup 2, and the rotary blade 6 moves to the upper side of the cup 2. . When the rotating shaft 5 rises above the cup 2, the cup 2 placed on the container table 3 can be taken out.

  When making the juice using ingredients such as fruits by the automatic mixer described above, if the rotary blade 6 is rotated with the upper opening of the cup 2 covered with the lid 7, the inside of the cup 2 is depressurized by the rotation of the rotary blade 6. The lid 7 may be adsorbed to the cup 2. If the lid 7 is lifted together with the rotating shaft 5 using the lifting motor 8 in such a state, the cup 2 may fall together with the lid 7 and then the cup 2 may fall due to the weight of the juice inside. there were. Therefore, a cylindrical holder for detachably fitting and fixing the lower part of the cup 2 to the container base 3 is provided, and if the lower part of the cup 2 is strongly fitted and fixed to this holder, the cup 2 is attracted to the lid 7 and rises. There is nothing to do. However, when the cup 2 is strongly fitted and fixed to the holder, juice may spill out when the cup 2 is removed depending on the force to remove the cup 2. The present invention aims to solve such problems.

  In order to solve the above problems, the present invention provides a container for containing ingredients such as fruits and beverages, a container table on which the container is placed, and a vertically movable upper side of the container placed on the container table. A rotating shaft that is rotated by a motor, a rotating blade that is attached to the lower portion of the rotating shaft and crushes food in the container, and is provided so as to be vertically movable above the container placed on the container table. A lid that covers the upper opening, and the container containing the food is placed on the container stand, and the lid is lowered to cover the upper opening of the container, and the rotary blade is lowered into the container to rotate it. An automatic mixer in which the lid and the rotary blade are lifted and removed from the container, and the container base is provided with a fitting recess in which the lower part of the container is fitted from above. The inner peripheral surface of the fitting recess and the lower outer peripheral surface of the container One of them has a plurality of ridges inclined at a predetermined angle from the vertical direction to the horizontal direction, and the other of the inner peripheral surface of the fitting recess of the container base and the outer periphery of the lower part of the container has a predetermined angle from the vertical direction to the horizontal direction. The present invention provides an automatic mixer having a plurality of concave grooves which are inclined and engage slidably.

  In the automatic mixer configured as described above, the container base has a fitting recess in which the lower part of the container is fitted from above, and either the inner peripheral surface of the fitting concave part of the container base or the lower outer peripheral surface of the container One has a plurality of ridges inclined at a predetermined angle from the vertical direction to the horizontal direction, and the other of the inner peripheral surface of the fitting recess of the container base and the lower outer periphery of the container is inclined at a predetermined angle from the vertical direction to the horizontal direction. Since the ridges are provided with a plurality of concave grooves that slidably engage in the vertical direction, when the food in the container is crushed by the rotation of the rotary blade, the lid covering the upper surface opening of the container is raised In addition, even if the lid is adsorbed to the container, the container and the container base are engaged with the ridge and the groove that are inclined at a predetermined angle from the vertical direction to the horizontal direction, so that the container does not rise with the lid. . Also, if the container is rotated upward and the ridge is slid into the concave groove, the container can be fitted into the fitting recess of the container base without complicated movement, The container can be removed from the fitting recess of the container base without applying a large force.

  In the automatic mixer configured as described above, it is preferable that the ridge is formed with a taper that narrows the width of the inlet portion with respect to the concave groove, and in this way, the container is fitted into the fitting recess of the container base. When mating, it becomes easy to engage the ridge with the concave groove.

  Further, in the automatic mixer configured as described above, it is preferable to form a taper so that the width of the inlet portion with respect to the protrusion of the concave groove is widened. When it is made to fit, it becomes easy to engage a protrusion with a ditch | groove.

  Moreover, in the automatic mixer comprised as mentioned above, it is preferable to incline a protrusion and a ditch | groove between 15 degrees-30 degrees from a perpendicular direction to a horizontal direction, and in this way, a lid | cover is raised. Also, when the container is not lifted by being attracted to the lid, and the container is fitted into the fitting recess of the container base, the protrusion is engaged while sliding in the groove without greatly rotating the container. be able to.

It is the front view which removed the front panel of the automatic mixer of this invention. It is sectional drawing in the AA of FIG. It is sectional drawing which shows the state which lowered | hung the rotating shaft of FIG. (A) is a side view of a cup, (b) is an end view in the BB line of (a). It is a perspective view of a container stand. It is a block diagram of the electric control apparatus of an automatic mixer. It is a flowchart which shows the control program by the electric control apparatus of an automatic mixer. It is sectional drawing of the conventional automatic mixer.

  Hereinafter, an embodiment of an automatic mixer according to the present invention will be described with reference to the drawings. The automatic mixer 10 according to the present invention is a device for directly chopping ingredients such as fruits, vegetables and beverages in a cup 20 provided to a customer to make juice, and the rotary blade 44 and the cup 20 for chopping the ingredients. The lid 61 that prevents the finely chopped food from splashing is automatically raised and lowered. As shown in FIGS. 1 and 2, the automatic mixer 10 is mounted on a cup (container) 20 for containing ingredients such as fruits and beverages, a container base 30 on which the cup 20 is placed, and a container base 30. A rotating shaft 43 provided on the upper side of the placed cup 20 so as to be movable in the vertical direction and rotated by a crushing motor 41, and a rotating blade attached to the lower portion of the rotating shaft 43 and crushing food stored in the cup 20 44 and a lid 61 that is provided on the upper side of the cup 20 placed on the container table 30 so as to be movable in the vertical direction and covers the upper opening of the cup 20. Then, the lid 61 is lowered to cover the upper opening of the cup 20 and the rotary blade 44 is lowered into the cup 20 and rotated to crush the food in the cup 20. Thereafter, the lid 61 and the rotary blade are separated. Raise In which was controlled so as to disengage from-up 20. Thus, in this automatic mixer 10, as shown in FIGS. 4 and 5, the container base 30 is provided with a fitting recess 31 into which the lower part of the cup 20 is fitted, and is perpendicular to the lower outer peripheral surface of the cup 20. A plurality of protrusions 21 inclined at a predetermined angle in the horizontal direction from the direction and the inner peripheral surface of the fitting recess 31 of the container base 30 are inclined at a predetermined angle from the vertical direction in the horizontal direction so that the protrusions 21 of the cup 20 are in the vertical direction. And a plurality of concave grooves 32 slidably engaged with each other. Below, the automatic mixer 10 which concerns on this invention is explained in full detail.

  As shown in FIG. 4, the cup 20 used in the automatic mixer 10 is a substantially cylindrical resin cup formed such that the upper diameter gradually increases, and the lower end (lower) outer periphery of the cup 20. On the surface, a plurality of ridges 21 inclined at a predetermined angle of 22 ° from the vertical direction to the horizontal direction are continuously formed in the circumferential direction. The protrusion 21 of the cup 20 has a width of 2 mm, a vertical length of 10 mm, and a height of the cup 20 in the radial direction of 2 mm. In addition, although the protrusion 21 of the cup 20 is inclined 22 ° from the vertical direction to the horizontal direction, it may be inclined between 15 ° and 30 °.

  The automatic mixer 10 includes a container table 30 for placing the cup 20 on the lower part of the housing 11, a crushing mechanism 40 for crushing the material in the cup 20 on the upper part of the housing 11, and a crushing mechanism 40 in the vertical direction. An elevating mechanism 50 to be moved and a covering mechanism 60 that covers the upper opening of the cup 20 are provided.

  As shown in FIGS. 2 and 5, the container base 30 is made of a lattice-shaped resin member for placing the cup 20, and is detachably fixed at the lower part of the housing 11 so as not to move in the vertical direction. ing. As shown in FIG. 5, a fitting recess 31 having a bottomed cylindrical shape with which the lower end (lower part) of the cup 20 is fitted is formed at the center of the container base 30. On the inner peripheral surface of the fitting concave portion 31, four concave grooves 32 are provided in which the protrusions 21 of the cup 20 are slidably engaged in the vertical direction. The four concave grooves 32 are provided at equal intervals on the inner peripheral surface of the fitting concave portion 31, and are inclined at a predetermined angle of 22 ° from the vertical direction to the horizontal direction. The concave groove 32 is formed with a taper that widens the upper side width that becomes an inlet portion into which the protrusion 21 is inserted when the cup 20 is fitted into the fitting concave portion 31. The concave groove 32 has an upper end width of 4 mm, a lower end width of 2 mm, a vertical length of 10 mm, and a depth of 2 mm. In addition, although the groove 32 of the fitting recess 31 is inclined 22 ° from the vertical direction to the horizontal direction, it may be inclined between 15 ° and 30 ° according to the protrusion 21 of the cup 20.

  As shown in FIG. 2, the crushing mechanism 40 includes a crushing motor 41, a rotary shaft 43 that is rotated by the crushing motor 41, and a rotary blade 44 that is attached to the lower end of the rotary shaft 43. Yes. The crushing motor 41 is fixed to the upper surface of the movable support plate 42 supported by the elevating mechanism 50 so as to be movable in the vertical direction. An output shaft 41a of the crushing motor 41 is provided so as to protrude downward through the movable support plate 42, and a rotary shaft 43 is connected to the output shaft 41a by a cylindrical joint 41b. A rotary blade 44 is attached to the lower end portion of the rotary shaft 43 to stir the food contained in the cup 20 while chopping it finely. A locking disc 45 that locks a lid 61 (described later) is provided at the lower end of the rotating shaft 43 slightly above the rotating blade 44. The movable support plate 42 is formed with through holes 42 a and 42 b for inserting a feed screw rod 54 and a guide rod 56 of an elevating mechanism 50 (described later) behind the crushing motor 41. On the lower surface of the movable support plate 42, a nut 46 that is screwed into the threaded portion of the feed screw rod 54 is fixed at a position where a through hole 42 a for inserting the feed screw rod 54 is formed. On the upper surface of the movable support plate 42, a cylindrical guide bush 47 for guiding the guide rod 56 to a position where the through hole 42b is formed is fixed.

  As shown in FIG. 2, the lifting mechanism 50 includes a lifting motor 51, a feed screw rod 54 that is rotated by the lifting motor 51, and a guide rod 56. The lifting / lowering motor 51 moves the crushing mechanism 40 and the covering mechanism 60 up and down, and is fixed to the lower surface of the upper support plate 52 that is installed on both side walls at the upper part of the housing 11. An output shaft 51a of the elevating motor 51 is provided so as to protrude upward through the upper support plate 52, and a pulley 51b is attached to the output shaft 51a.

  The feed screw rod 54 is rotatably supported by bearings 52a and 53a provided on an upper support plate 52 and a lower support plate 53 installed on both side walls at an intermediate portion of the housing 11. ing. The feed screw rod 54 is inserted into the through hole 42a in a state of being screwed into the nut 46 on the lower surface of the movable support plate 42. A pulley 54 a is attached to the upper end portion of the feed screw rod 54, and a timing belt 55 is provided between the pulley 54 a and a pulley 51 b attached to the output shaft 51 a of the lifting motor 51. When the elevating motor 51 is driven, the feed screw rod 54 rotates and the movable support plate 42 moves in the vertical direction.

  The guide rod 56 is for guiding the rotating shaft 43 that hangs downward from the movable support plate 42 to a position directly above the cup 20 placed in the fitting recess 31 of the container base 30. It is supported by an upper support plate 52 and a lower support plate 53 so as to be parallel to the front side of 54. The guide rod 56 is inserted through the through hole 42 b and the guide bush 47 of the movable support plate 42.

  As shown in FIG. 2, the covering mechanism 60 includes a lid 61 that covers the upper surface opening of the cup 20, a cylindrical weight member 62 that presses the lid 61 downward, and an adapter 63 that biases the weight member 62 downward. And a coil spring 64. The lid 61 covers the upper surface opening of the cup 20 and is made of a substantially cylindrical silicon rubber member provided with a top plate 61a. A through hole 61b through which the rotary shaft 43 is inserted is formed at the center of the top plate 61a of the lid 61, and a locking disc at the lower end of the rotary shaft 43 extends downward around the through hole 61b. A locking cylinder portion 61 c that locks on the upper surface of 45 is formed. The lid 61 is supported so that the locking cylinder portion 61 c of the top plate 61 a is locked to the upper surface of the locking disk 45 of the rotating shaft 43, and is movable in the vertical direction together with the rotating shaft 43. The size of the outer periphery of the lower portion of the lid 61 is a size that can be fitted to the inner periphery of the upper portion of the cup 20 with almost no gap. An annular flange 61d is formed on the outer periphery of the intermediate portion in the vertical direction of the lid 61 so as to contact the upper edge of the cup 20 and prevent the overflow of foodstuffs. An engagement protrusion 61e for preventing rotation is formed on the outer periphery of the lid 61. In the lower part of the inner peripheral surface of the lid 61, three baffle plate portions 61f for improving the efficiency of stirring when crushing and stirring in the cup 20 are formed at equal intervals.

  The weight member 62 is for pressing the flange 61d of the lid 61 against the upper edge of the cup 20 by its own weight, and is made of a metal cylinder member having an appropriate weight. The lower part of the weight member 62 is fitted on the outer periphery of the lid 61 on the upper side of the flange 61d, and can slide on the cylindrical holder 13 fixed to the partition plate 12 provided below the intermediate part of the housing 11. Is inserted. Three vertical concave grooves 62 a are formed at equal intervals on the outer peripheral surface of the weight member 62, and three vertical protrusions 13 a are formed at equal intervals on the inner peripheral surface of the cylindrical holder 13. Is formed. The weight member 62 is prevented from rotating by a concave groove 62 a slidably engaged with the protrusion 13 a on the inner peripheral surface of the holder 13. Further, an engagement recess 62 b that engages with an engagement protrusion 61 e on the outer peripheral surface of the lid 61 is formed on the inner peripheral surface of the weight member 62, and the engagement protrusion 61 e of the lid 61 is formed on the weight member 62. The engaging recess 62b is engaged. The lid 61 does not rotate around the vertical axis via the weight member 62 and the holder 13. A bottomed cylindrical adapter 63 for locking the coil spring 64 is fitted into the inner periphery of the weight member 62, and the adapter 63 has a flange portion 63 a formed at the upper end of the weight member 62. Locked and supported at the upper end. The coil spring 64 is provided between the lower surface of the movable support plate 42 and the bottom plate portion of the adapter 63 and urges the weight member 62 downward.

  As shown in FIG. 6, the automatic mixer 10 includes a crushing motor 41, an elevating motor 51, and an electric control device 70 connected to an operation panel 14 provided on the front panel. The electric control device 70 controls the operation of the crushing motor 41 and the elevating motor 51 by executing the following program using a built-in microcomputer 71 according to the output signal of the operation panel 14.

  Next, the operation | movement for making the fruit juice using the automatic mixer 10 comprised as mentioned above is demonstrated using the flowchart shown in FIG. First, the cup 20 containing the fruit and fruit juice drink cut to an appropriate size is inserted into the fitting recess 31 of the container base 30. When the cup 20 is inserted into the fitting recess 31 of the container base 30, if the cup 20 is released in a position where the protrusion 21 of the cup 20 can be inserted into the groove 32 of the fitting recess 31, the cup 20 protrudes. 21 slides down into the groove 32 and is inserted into the fitting recess 31. At this time, both the protrusion 21 of the cup 20 and the groove 32 of the fitting recess 31 are inclined by 22 ° from the vertical direction to the horizontal direction, so that the cup 20 is not intentionally rotated. Yes.

  When the switch of the operation panel 14 is turned on in a state where the cup 20 is fitted in the fitting recess 31 of the container base 30, the electric control device 70 causes the movable support plate 42 to descend as shown in step 101. The raising / lowering motor 51 is driven. As the movable support plate 42 is lowered, the rotary shaft 43 is lowered to a position where the rotary blade 44 at the lower end is in the cup 20 as shown in FIG. At this time, the lid 61 that descends together with the rotating shaft 43 stops with the flange 61d engaging with the upper edge of the cup 20 and covers the upper opening of the cup 20. Next, as shown in step 102, the electric control device 70. The crushing motor 41 is driven to rotate the rotating shaft 43 and the rotating blade 44 at the lower end, and the elevating motor 51 is driven so that the rotating blade 44 moves up and down three times within the cup 20 a predetermined number of times. Thereby, the foodstuff in the cup 20 is finely cut into fruit juice. At this time, since the upper surface opening of the cup 20 is covered with the lid 61, fruit juice does not scatter from the cup 20.

  Next, as shown in step 103, the electric control device 70 drives the elevating motor 51 so that the movable support plate 42 is raised. As the movable support plate 42 rises, the rotary shaft 43 rises to a position where the rotary blade 44 at the lower end is located above the cup 20, and the lid 61 rises together with the rotary shaft 43 and separates from the cup 20. At this time, the inside of the cup 20 is decompressed by the rotation of the rotary blade 44, and the lid 61 may be adsorbed to the cup 20. When the lid 61 is raised together with the rotating shaft 43 in such a state, the cup 20 tends to rise together with the lid 61. However, while the lid 61 is supported so as not to rotate, the protrusion 21 at the lower end of the cup 20 and the groove 32 of the fitting recess 31 of the container base 30 are mutually at a predetermined angle from the vertical direction to the horizontal direction. Therefore, the cup 20 does not rotate with the lid 61 that rises vertically without rotating.

  Thereafter, if the cup 20 is grasped by hand and lifted upward, the cup 20 rotates slightly while the protrusion 21 of the cup 20 slides in the groove 32 of the fitting recess 31. In particular, since the cup 20 rotates while the ridge 21 is guided and slid by the concave groove 32, the cup 20 can be lifted without intentionally rotating the hand holding the cup 20. In this way, the cup 20 can be removed without applying a large force to take out the cup 20 or causing a complicated movement such as when a key-shaped engagement portion is provided between the cup 20 and the fitting recess 31. 20 can be easily removed. Thereby, when taking out cup 20, it becomes difficult to spill fruit juice.

  In the automatic mixer 10 configured as described above, the container base 30 includes a fitting recess 31 in which the lower end portion of the cup 20 is fitted from above, and the lower outer peripheral surface of the cup 20 is predetermined in the vertical direction to the horizontal direction. A plurality of ridges 21 inclined at an angle of 22 ° are provided, and the ridges 21 of the cup 20 are vertically moved at a predetermined angle of 22 ° from the vertical direction to the horizontal direction on the inner peripheral surface of the fitting recess 31 of the container base 30. A plurality of concave grooves 32 are slidably engaged in the direction. After the food in the cup 20 is crushed by the rotation of the rotary blade 44, when the lid 61 covering the upper surface opening of the cup 20 is raised, the lid 61 is fitted into the fitting recess 31 of the container base 30. Although the lid 61 is not rotatable even if it is adsorbed to the cup 20, the cup 20 and the container base 30 have a ridge 21 and a groove 32 inclined at a predetermined angle of 22 ° from the vertical direction to the horizontal direction. Since it is engaged, the cup 20 does not rise with the lid 61. Further, if the ridge 21 is slid into the concave groove 32 by rotating the cup 20 or the like, the cup 20 can be fitted into the fitting concave portion 31 of the container base 30 without complicated movement, Further, the cup 20 can be removed from the fitting recess 31 of the container base 30 without applying a large force.

  Further, in the automatic mixer 10, the concave groove 32 of the fitting concave portion 31 of the container base 30 is formed with a taper that increases the width on the upper side that becomes the inlet portion with respect to the protrusion 21 of the cup 20. It becomes easy to engage the protrusion 21 with the concave groove 32.

  Moreover, in the automatic mixer 10, it is optimal to incline the protrusion 21 of the cup 20 and the groove 32 of the fitting recess 31 of the container base 30 from 15 ° to 30 ° from the vertical direction to the horizontal direction. Even if the lid 61 is raised, the cup 20 is not attracted to the lid 61 and rises, and when the cup 20 is fitted into the fitting recess 31 of the container base 30, the cup 20 does not rotate greatly. The strip 21 can be engaged with the concave groove 32 while sliding.

  In addition, in this embodiment, although the protrusion 21 is provided in the outer peripheral surface of the lower end part of the cup 20, and the ditch | groove 32 is provided in the inner peripheral surface of the fitting recessed part 31 of the container stand 30, this invention is based on this. The same effect can be obtained even if a groove is provided on the outer peripheral surface of the lower end portion of the cup 20 and a protrusion is provided on the inner peripheral surface of the fitting recess 31 of the container base 30. .

  Further, in the present embodiment, the concave groove 32 of the container base 30 is formed with a taper that increases the width of the upper side that becomes the inlet portion with respect to the protrusion 21 of the cup 20, but the present invention is limited to this. Instead, the same effect can be obtained even if the protrusion 21 of the cup 20 forms a taper in which the width on the lower side that becomes the entrance to the concave groove 32 becomes narrow. Similarly, when a concave groove is provided on the outer peripheral surface of the lower end portion of the cup 20 and a protrusion is provided on the inner peripheral surface of the fitting concave portion 31 of the container base 30, the concave groove on the lower end portion of the cup 20 is similarly The taper that widens the lower side that serves as the entrance to the protrusion of the fitting recess 31, or the width of the upper side that serves as the entrance to the groove at the lower end of the cup 20 of the protrusion of the fitting recess 31 becomes narrower. Even if the taper is formed, the same effect can be obtained.

  DESCRIPTION OF SYMBOLS 10 ... Automatic mixer, 20 ... Container (cup), 21 ... Projection, 30 ... Container base, 31 ... Fitting recessed part, 32 ... Groove, 41 ... Motor (motor for cutting), 43 ... Rotating shaft, 44 ... Rotary blade, 61 ... lid.

Claims (4)

A container for containing ingredients such as fruits and beverages;
A container table on which the container is placed;
A rotating shaft that is provided so as to be movable in the vertical direction on the upper side of the container placed on the container table and is rotated by a motor;
A rotary blade attached to the lower part of the rotary shaft and crushing food in the container;
A lid that is provided so as to be movable in the vertical direction on the upper side of the container placed on the container table and covers the upper opening of the container;
The container containing the food is placed on the container table, and the lid is lowered to cover the upper opening of the container, and the rotary blade is lowered into the container and rotated to rotate the food in the container An automatic mixer in which the lid and the rotary blade are then lifted and removed from the container,
The container base includes a fitting recess in which the lower part of the container is fitted from above,
Either one of the inner peripheral surface of the fitting recess of the container base and the lower outer peripheral surface of the container includes a plurality of protrusions inclined at a predetermined angle from the vertical direction to the horizontal direction,
The other of the inner peripheral surface of the fitting recess of the container base and the lower outer periphery of the container is provided with a plurality of concave grooves that are slidably engaged with the ridges so as to be inclined at a predetermined angle from the vertical direction to the horizontal direction. An automatic mixer characterized by that. The automatic mixer according to claim 1,
2. The automatic mixer according to claim 1, wherein the protrusion is formed with a taper so that the width of the inlet with respect to the concave groove is narrowed. The automatic mixer according to claim 1 or 2,
The automatic mixer according to claim 1, wherein the concave groove is formed with a taper so that the width of the inlet portion with respect to the protrusion is wide. The automatic mixer according to any one of claims 1 to 3,
An automatic mixer characterized in that the ridges and the concave grooves are inclined from 15 to 30 degrees in the horizontal direction from the vertical direction.

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