JP2007307273A - Drink maker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drink maker which can simply serve tasty cold drink rich in flavor in a short time without diluting the drink with melted ice water when the drink such as coffee extracted by drink extracting means is cooled. <P>SOLUTION: In the drink maker which includes an extract tank 52A for accumulating extract extracted by the drink extracting means 50 and a cooling tank 52B for holding a coolant touching the extract through the tank wall of this extract tank 52A and cooling the extract by the coolant, comprises a rotary drive part 22 giving a relative rotation speed difference to both the tanks 52A and 52B by rotating at least one of the extract tank 52A and the cooling tank 52B, and a stirring blade 54 provided at the extract tank 52A and agitates the coolant. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a beverage maker for cooling beverages such as hot coffee liquid extracted using coffee powder with a cooling liquid such as ice water.

  There is known a coffee maker for so-called regular coffee such as a drip type, for example, a drip type using a paper filter, in which hot coffee is poured into a coffee funnel containing coffee powder to extract coffee and to collect the dropped coffee liquid. Also known is an ice coffee extraction method in which hot coffee (hot coffee liquid) extracted in this way is cooled by ice.

JP-A 61-179115 Shokai 59-7732 JP-A-2005-143702

  In Patent Documents 1 and 2, high-temperature hot water obtained by heating water in a water tank with a heater is poured into a chamber (coffee funnel) containing coffee powder, and high-temperature coffee liquid dripping from the chamber is put into an ice chamber containing ice. Shown is what goes through and collects in the lower decanter. That is, it cools by pouring hot coffee liquid on ice.

  Patent Document 3 discloses that hot coffee extraction (this mode is called hot coffee extraction mode) and ice coffee extraction (also ice coffee extraction mode) can be selected. In the ice coffee extraction mode, an extracted hot coffee liquid is used. The coffee liquid tank is received, and the coffee liquid tank is cooled with ice water from the outside to make ice coffee. In this case, using a cooler in which the outer periphery (tank wall) of the coffee liquid tank is surrounded by ice water in the ice water tank, the coffee liquid flows down to the jug by opening a discharge valve provided at the bottom of the coffee liquid tank.

  Patent Document 3 discloses that a coffee funnel is detachably attached to a lower surface of an upper wall portion of a main body so that the coffee funnel can be rotationally driven, and coffee is extracted while rotating the coffee funnel. Here, the coffee funnel is used in both the ice coffee extraction mode and the hot coffee extraction mode. For this reason, in the hot coffee extraction mode, hot coffee is received in the coffee liquid tank without pouring ice into the ice water tank, and flows down to the jug.

  In the ones disclosed in Patent Documents 1 and 2, since the hot coffee liquid is cooled by directly contacting ice, the cooled coffee liquid is diluted with ice melt water. For this reason, there is a problem that the flavor of iced coffee is lowered and the taste and smell of ice are transferred to the coffee liquid. On the other hand, since the thing shown by patent document 3 does not pour the coffee liquid extracted by the ice coffee extraction mode directly on ice, coffee is not diluted with the melt of ice. However, since the coffee extract is cooled through the partition walls of the coffee liquid tank and the ice water tank, there is a problem that it takes time to cool the coffee liquid.

  The present invention has been made in view of such circumstances. When a beverage such as coffee extracted by a beverage extraction means is cooled, the beverage is not diluted with melted ice water and is a delicious cold beverage rich in flavor. It is an object of the present invention to provide a beverage maker that can be easily put in a short time.

  According to the present invention, this object is provided with an extraction liquid tank for accumulating the extraction liquid extracted by the beverage extraction means, and a cooling tank for storing a cooling liquid in contact with the extraction liquid through the tank wall of the extraction liquid tank. In the beverage maker for cooling the extract with the cooling liquid, a rotation drive unit that rotates at least one of the extract liquid tank and the cooling tank to give a relative rotational speed difference between the two tanks and the extract liquid tank is provided. It is achieved by a beverage maker comprising a stirring blade for stirring the cooling liquid.

  Instead of providing a stirring blade in the extract tank, the extract tank may be provided with irregularities. Alternatively, the extract tank may be eccentric with respect to the vertical center axis of the cooling tank and rotated relative to the center line of the cooling tank.

  Since the extract liquid tank is cooled by the cooling tank, the extract liquid is not diluted with molten water, and the flavor of the beverage is not lowered. In addition, at least one of the extraction liquid tank and the cooling tank rotates with a relative rotational speed difference between them, and the cooling liquid is agitated by the stirring blades of the extraction liquid tank, the uneven shape, or eccentric rotation. It is cooled efficiently. For this reason, a cold drink can be made in a short time.

  When the extraction liquid tank is uneven, for example, when it has a flat cross section with a shape whose radius changes periodically in the circumferential direction, such as a star or polygon, the contact area with the cooling liquid increases and the cooling liquid agitates. And the cooling effect of the extract is improved. If the extraction liquid tank is made of a metal having good heat conductivity and heat transfer fins are provided on the outer periphery, the heat transfer fins promote the heat transfer effect and the cooling liquid stirring effect.

  The extract tank is preferably rotated concentrically with the cooling tank, ie around a common vertical line. In this case, the space occupied by these tanks is reduced, which is suitable for the overall size reduction. However, when the two tanks are rotated non-concentrically, for example, when the extract tank is decentered with respect to the vertical center line of the cooling tank and rotated around the center line of the cooling tank, The stirring action of the cooling liquid by the rotation of the extraction liquid tank is further promoted.

  In order to provide unevenness in the extraction liquid tank, for example, it can be a substantially star shape or a polygon shape whose radius periodically changes in the radial direction in plan view. A rotation drive unit is suitable for rotating the extract tank (claim 5). This is because the cooling liquid can be efficiently stirred by rotating the extraction liquid tank. The rotation direction may be constant, but the rotation direction may be reversed during extraction, or the rotation speed may be changed.

  The beverage extraction means is optimally an extraction funnel that contains a beverage extraction raw material (coffee powder or the like) and discharges the extract to the extract tank (Claim 6).

  The beverage extraction means can be formed by a rotating extraction funnel. In this case, the extraction funnel and the extraction liquid tank can be rotated together by fixing the extraction liquid tank to the extraction funnel. That is, the rotation drive part of the extraction funnel also serves as the rotation drive part of the extraction liquid tank. In this case, if the extraction liquid tank is detachably attached to the extraction funnel, the same funnel can be used conveniently when the extraction liquid does not need to be cooled (for example, when extracting a hot beverage). The beverage extraction means includes not only coffee but also Japanese tea, black tea, Chinese tea, and other tea.

  The rotation drive unit may rotate at least one of the extraction liquid tank and the cooling tank in a certain direction, but may rotate both tanks by separate rotation drive units (claim 8). In this case, both tanks may be forward and reverse. For example, the direction of rotation is reversed manually or automatically at regular intervals or at regular angles. The extract tank and the cooling tank are preferably arranged concentrically around the vertical axis, and at least one of the tanks is preferably circularly moved around the vertical axis (concentric axis).

  If the extract tank is detachable from the cooling tank, only the extract tank can be removed from the cooling tank after the extract is cooled, and the extract can be poured into a cup or the like, which is easy to use. However, the extraction liquid tank may be held rotatably in the cooling tank. In this case, a drain valve that penetrates the cooling tank is provided at the bottom of the extraction liquid tank. (Claim 9).

  In this embodiment, ice coffee and hot coffee can be selectively made, and the present invention is used in an ice coffee extraction mode. FIG. 1 is a side sectional view showing an ice coffee extraction mode of a coffee maker according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a coupling portion between the coffee extraction funnel and an extraction liquid tank, It is side sectional drawing which shows hot coffee extraction mode.

  In FIGS. 1 and 3, reference numeral 10 denotes a main body, which is formed by connecting a bottom portion 12, a partition wall 14, and an upper wall portion 16 with vertical upright portions 18. A deceleration motor 22 is loaded on the upper wall portion 16. The reduction motor 22 incorporates a reduction gear (not shown), and the drive shaft 24 that is an output shaft rotates at a low speed. A hot water tray 30 described later is detachably coupled to the drive shaft 24 by a chuck 26. The chuck 26 is opened and closed by a detachable button 28 facing the upper surface of the upper wall portion 16. That is, the motor 22 has a circular shape in plan view, and a lid-like attach / detach button 28 surrounds the motor 22.

  The detachable button 28 is returned upward by a coil spring, and when the detachable button 28 is pressed downward, the chuck 26 is opened (that is, the hot water tray 30 is opened).

  An electric heater 32 is incorporated in the bottom 12 of the main body 10. The electric heater 32 heats the water led from the water tank 42 described later via the water hose 34 and sends it as hot (boiling) hot water to the upper wall portion 16 by the hot water pipe 38 passing through the upright portion 18. This hot water (hot water) is guided to the hot water tray 30 through an activated carbon filter 40 provided adjacent to the drive shaft 24 on the lower surface of the upper wall portion 16.

  The hot water receiving tray 30 has a substantially inverted umbrella-shaped side section, and a large number of radial ribs are formed on the upper surface of the hot water receiving tray 30, and hot water dropping holes are formed between the ribs. By appropriately setting the position of the dripping hole, the dripping position of hot water with respect to the ice coffee extraction funnel 50 described later attached to the hot water receiving tray 30 can be changed.

  The heater 32 is formed by winding a heating element around a metal pipe and bending it into a substantially U shape. A circular metal plate is assembled on the upper surface of the heater 32, and this metal plate is attached to a circular opening provided in the bottom portion 12. It is fitted from below. A jug 66, which will be described later, is placed on the metal plate facing the opening, and the jug 66 is kept warm in the hot coffee extraction mode.

  Next, the water tank 42 will be described. As shown in FIG. 1, the water tank 42 is loaded on the outer surface of the upright portion 18 of the main body 10. That is, the upright portion 18 has a substantially semicircular shape in plan view, and the water tank 42 has a shape in which a flat cross section is formed by vertically dividing a part of a circular cylinder and an arc-shaped outer surface substantially follows the outer surface of the upright portion 18. It has become.

  The water tank 42 is loaded into a water tank loading chamber 44 that opens on the outer surface provided in the upright portion 18. A concave portion 44A having a substantially trapezoidal shape in plan view is formed at the bottom of the water tank loading chamber 44, and a convex portion 42A that can be engaged with the concave portion 44A from above is formed at the bottom of the water tank 42. Yes. A step 42B is formed on the upper surface of the water tank 42 on the inner side (the back side of the water tank loading chamber 44), while the outer side of the upper surface of the water tank 42 bulges outside the water tank loading chamber 44.

  In the water tank loading chamber 44, a stepped portion 44B is formed above the stepped portion 42B on the side of the water tank 42 and is spaced apart by a certain dimension, that is, slightly larger than the depth of the recessed portion 44A. Therefore, when the water tank 42 is pulled upward from the loading state of FIG. 1, the stepped portion 42 </ b> B comes into contact with the stepped portion 44 </ b> B of the loading chamber 44 from below and the upward movement thereof is restricted. If the step 42B is released from the step 44B by tilting the upper part of the water tank 42 in this state, the water tank 42 can be lifted obliquely upward while the bottom protrusion 42A escapes from the recess 44A. it can. A handle 42 </ b> C is provided on the outer surface of the water tank 42 having an arc shape in plan view.

  A water discharge valve 46 is provided on the convex portion 42 </ b> A at the bottom of the water tank 42. The water discharge valve 46 is always moved downward by a coil spring to close the water discharge passage. On the other hand, in a state where the water tank 42 is loaded in the water tank loading chamber 44, the water discharge valve 46 is pushed up by the projection 44C provided in the recess 44A. open. Since the space between the opposing surfaces of the convex portion 42A and the concave portion 44A is hermetically sealed, the water in the water tank 42 flows out by an amount that fills the concave portion 44A, and does not flow out of the concave portion 44A.

  The water hose 34 is connected via a check valve 48 to the bottom of a small gap surrounded by the convex portion 42A and the concave portion 44A. For this reason, the water in the water tank 42 is led to the heater 32 through the water outlet valve 46, the check valve 48, and the water pipe 34, and when heated and boiled by the heater 32, it flows out to the hot water tray 30 through the hot water pipe 38 and the filter 40. To do. At this time, the hot water does not flow back into the water tank 42 because of the check valve 48. When the water level in the heater 32 falls, water is supplied from the water tank 42 and the above operation is continued.

  Next, the ice coffee extraction mode will be described. In this mode, the ice coffee extraction funnel 50 is attached to the hot water tray 30 while the cooler 52 is placed on the partition wall 14. The ice coffee extraction funnel 50 has a circular upper edge folded back to the outside, and its outer periphery can be engaged with the hot water tray 30. For example, a groove bent in a bowl shape on the outer periphery of the upper edge of the funnel 50 is formed so that its upper end opens to the upper edge, while a protrusion that engages with this bowl-shaped groove is formed on the inner surface of the outer periphery of the hot water tray 30; While engaging the upper end portion of the bowl-shaped groove with the protrusion, the funnel 50 is pushed upward with respect to the hot water tray 30 and the funnel is slightly rotated to engage the protrusion with the depth (horizontal portion) of the bowl-shaped groove. It can be set as the coupling | bonding structure (henceforth a groove coupling) to be made.

  The cooler 52 is a combination of a bottomed cylindrical coffee liquid tank (coffee liquid container, which is the extract liquid tank of the present invention) 52A and a cooling tank 52B concentrically about a vertical axis (concentric axis). Yes, the coffee liquid tank 52A is made of a metal having good thermal conductivity such as aluminum. The coffee liquid tank 52A is detachably attached to the coffee extraction funnel 50 as shown in FIG. That is, a pair of groove-shaped notches 53 are formed near the upper edge of the coffee liquid tank 52A, while a pair of engaging protrusions 53A are formed on the coffee extraction funnel 50. The engaging protrusion 53A can be engaged and disengaged by the groove coupling.

  Note that the hot water tray 30 and the coffee extraction funnel 50 are also connected to the grooving groove. The grooving groove coupling and the grooving groove coupling the coffee liquid tank 52A to the coffee extraction funnel 50 are both coupled in the direction of the drive shaft 24. The direction of rotation. That is, in FIG. 2, the drive shaft 24 rotates clockwise as viewed from above, and the engagement protrusion 53A rotates in the same direction and engages with the back (horizontal portion) of the bowl-shaped groove of the notch 53. The projection of the tray 30 is also engaged with the horizontal portion of the bowl-shaped groove of the coffee extraction funnel 50. For this reason, when the drive shaft 24 is rotated, the two groove couplings are not released.

  A plurality of stirring blades 54 project from the outer peripheral surface of the coffee liquid tank 52A. The stirring blade 54 is made of metal and has good heat conductivity. A cooling liquid such as ice water is placed in the cooling tank 52B, and the coffee liquid tank 52A is rotated with its lower part submerged in this cooling liquid. The stirring blade 54 stirs the cooling liquid put in the cooling tank 52B and promptly transfers the heat of the coffee liquid to the cooling liquid to promote the cooling of the coffee liquid.

  The cooler 52 attaches the hot water tray 30 to the ice coffee extraction funnel 50, and pushes the coffee liquid tank 52A down onto the cooling tank 52B from above with the coffee liquid tank 52A attached to the ice coffee extraction funnel 50. In this state, the whole is placed on the partition wall 14. The hot water tray 30 is coupled to the drive shaft 24 by the chuck 26. At this time, the circular seat 52C (FIG. 1) provided at the bottom of the cooling tank 52B is engaged with the circular hole provided in the partition wall 14 to stabilize the position of the cooler 52. 52D is a handle provided in the cooling tank 52B.

  A jug 66 is loaded below the cooler 52. The jug 66 is placed on a heater 32 attached to the bottom 12 via a heat insulating mat.

  If the motor 22 is started in this state, that is, the ice coffee extraction mode, the hot water tray 30, the ice coffee extraction funnel 50 and the coffee liquid tank 52A rotate together with the drive shaft 24. A paper filter and coffee powder (both not shown) are set in the funnel 50 in advance, and when the heater 32 generates heat and hot water is poured from the filter 40, the hot water is dispersed in the hot water tray 30 and dropped into the funnel 50. The extracted coffee liquid is stored in the coffee liquid tank 52A of the cooler 52. Since cooling liquid such as ice water is put in the cooling tank 52B in advance, the extracted coffee liquid is quickly cooled in the coffee liquid tank 52A. At this time, the coffee liquid tank 52A also rotates together with the funnel 50, and the stirring blade 54 of the coffee liquid tank 52A stirs the cooling liquid, so that the cooling effect of the coffee liquid becomes very large.

  When the coffee extraction is completed and the coffee liquid stored in the coffee liquid tank 52A of the cooler 52 is sufficiently cooled by the ice water, the motor 22 is stopped. Then, the chuck 26 is released, the hot water tray 30, the funnel 50, and the coffee liquid tank 52A are taken out together with the cooling tank 52B, the coffee liquid tank 52A is removed from the funnel 50, and the cooled coffee liquid is transferred to the cup.

  Next, the hot coffee extraction mode will be described with reference to FIG. In this mode, the scatter 70 is attached to the hot water tray 30. That is, a scatter 70 is attached in place of the ice coffee extraction funnel 50 used in the ice coffee extraction mode. The scatter 70 includes a deep recess 72 including the rotation center axis (center line) A of the drive shaft 24 (through the center axis A) and a shallow recess 74 not including the rotation center axis A (through the center axis A). And are formed. The bottoms of both concave portions 72 and 74 are substantially stepped.

  One drip hole 72A, 74A is formed on each bottom. The scatter 70 temporarily stores hot water, changes the hot water dropping position by changing the level of the hot water, and drops the hot water appropriately in the hot coffee extraction funnel 76. That is, at first, a lot of hot water is poured in the vicinity of the center of the funnel 76, and after the coffee powder is appropriately steamed, hot water is poured near the outer periphery to create an optimal extraction state, and the fragrance is high in taste. Good hot coffee can be extracted.

  Next, the control unit 80 will be described. The control unit 80 controls the heater 32 and the motor 22 based on the type of hot ice set by the input means 82 and the number of people to be extracted (for how many cups). The input means 82 has switches 82A and 82B for inputting hot (H) or ice (I), and a switch 82C for inputting a quantity (extraction amount). The controller 80 determines hot / ice based on the ON input of either of the switches 82A and 82B. Further, the number of cups (extraction amount) is determined by the number of times the switch 82C is turned on.

The control unit 80 controls the amount of hot water injected by changing the heating time of the heater 32 according to the extraction amount. For example when heating T ₀ hours for one person is a 3T ₀ if 2T _0, 3 persons if two persons and the heating time. The control unit may change the outflow amount of hot water corresponding to the type of hot ice. For example, when it is desirable to extract deeply with ice, in order to reduce the outflow amount, the heating time is made shorter than that during hot extraction.

  The controller 80 may change the outflow rate of hot water between hot and ice. For example, in ice, the outflow rate of hot water is slowed down in order to extract deeply. For this purpose, the temperature of the heater 32 may be set lower than that during hot extraction. For example, a temperature sensor 84 that detects the heater temperature is provided, and the control unit 80 may perform feedback control of the heater temperature.

  FIG. 4 is a side view showing another embodiment. In this embodiment, a coffee liquid tank (extraction liquid tank) 152A is rotatably held at the bottom of the cooling tank 152B, and the bottom of the coffee liquid tank 152A penetrates the bottom surface of the cooling tank 152B to provide a coffee liquid (extraction liquid). Is provided with a discharge valve 156. The discharge valve 156 is connected to an operating element 160 that protrudes laterally from the bottom of the cooler 152 mounted on the partition wall 114 and is opened and closed by a wedge-shaped block 158 that is slidable in the horizontal direction. That is, when the operating element 160 is pushed in, the slope of the wedge-shaped block 158 pushes up the discharge valve 156 to open the coffee liquid passage and flows down to the lower jug 166.

  A gear 162 is formed on the outer periphery of the upper part of the coffee liquid tank 152A, and an idle gear 166 driven by a motor 164 as a rotation drive unit is engaged with the gear 162. As a result, the coffee liquid tank 152A is rotationally driven by the motor 164. A stirring blade 154 is fixed to the outer peripheral surface of the coffee liquid tank 152A. A coffee extraction funnel 150 is placed on a partition wall 114 </ b> A provided on the main body 100.

  According to this embodiment, the water led from the water tank 142 is heated by the heater 130 and dropped onto the funnel 150 by the hot water pipe 138. The coffee liquid extracted by the funnel 150 is stored in the coffee liquid tank 152A. The coffee liquid tank 152A is rotationally driven by the motor 164, and the stirring blade 154 agitates the cooling liquid, so that the coffee liquid is quickly cooled. When the extraction of the coffee liquid is completed and it is sufficiently cooled, the operation element 160 is pushed, the discharge valve 156 is opened, and the coffee liquid is transferred to the jug 166.

  FIG. 5 is a side view showing another embodiment. In the third embodiment, the extract tank 252A and the cooling tank 252B forming the cooler 252 are rotationally driven by separate rotational driving units. As in the first embodiment shown in FIGS. 1 and 2, the extraction liquid tank 252 </ b> A is coupled to the funnel 50 by a groove coupling and is rotated together with the funnel 50 by the motor 22.

  The cooling tank 252B is placed on a rotating plate 253 attached to the partition wall 214. The rotary plate 253 is supported on the upper surface of the partition wall 214 via a thrust bearing 253A, while the central axis thereof passes through the partition wall 214 downward and a gear 253B is fixed to the lower end thereof. The gear 253B meshes with a small gear of a motor 253C serving as a rotation drive unit. For this reason, the rotating plate 253 is driven to rotate independently of the extract liquid tank 252A by the motor 253C.

  For example, the extraction liquid tank 252A and the cooling tank 252B rotate in opposite directions, rotate in the same direction with a speed difference, and reverse the rotation direction at regular time intervals or constant rotation angles. The rotation speed can be controlled. In FIG. 5, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will not be repeated. According to the third embodiment, by independently controlling the rotation of the extraction liquid tank 252A and the cooling tank 252B, stirring of the cooling liquid can be promoted, and the cooling effect of the coffee liquid (extraction liquid) can be further enhanced. A stirring blade 254 may be provided on the outer periphery of the extraction liquid tank 252A.

  FIG. 6 is a side sectional view showing another embodiment, and FIG. 7 is a plan view for explaining the rotation trajectory of the extraction liquid tank. In the fourth embodiment, the extraction liquid tank 352A is eccentric with respect to the vertical center line A of the cooling tank 352B and rotates around the center line A (that is, planetary motion).

  The cooling tank 352B is placed on the partition wall 314 and does not rotate. The extraction funnel 350 is suspended and held at the lower end of a hot water pipe 338 protruding downward from the upper wall 316. The center of the extraction funnel 350 is located on the center line A of the cooling tank 352B.

  A hanging tool 339 is rotatably held on the hot water pipe 338, and the hanging tool 339 bypasses the outside of the extraction funnel 350 and extends downward to hold the extraction liquid tank 352A. Here, the lifting tool 339 holds the extract liquid tank 352A by decentering the center line B of the extract liquid tank 352A by a dimension R with respect to the center line A of the cooling tank 352B.

  A gear 339A that is rotatably held on the outer periphery of the hot water pipe 338 is fixed to the hanger 339, and a gear of a motor 339B as a rotation drive unit is meshed with the gear 339A. Therefore, the extraction liquid tank 352A is rotationally driven by the motor 339B and rotates eccentrically with respect to the center line A of the cooling tank 352B.

  In FIG. 7, C shows the rotation locus of the center line B of the extract tank 352A. Therefore, the cooling liquid in the cooling tank 352B flows by the rotation of the extraction liquid tank 352A, and the cooling of the extraction liquid tank 352A is promoted.

  FIG. 8 is a plan sectional view showing another embodiment of the extract tank. Although the extraction liquid tank has a bottomed cylindrical shape in Examples 1 to 4 shown in FIGS. 1 to 7, the extraction liquid tank does not have to be cylindrical.

  FIG. 8A shows a substantially star shape in which the outer diameter of the extraction liquid tank 400 is periodically changed in the circumferential direction. The extraction liquid tank 400A in FIG. 8B is similarly polygonal, for example, hexagonal. The extraction liquid tank 400B of FIG. 8C is provided with a suitable number of fins on the outer periphery of a cylindrical shape at equal intervals in the circumferential direction. These fins are made of metal, make it easy to transfer the heat of the extract tank 400B to the coolant, and have a function as a stirring blade for the coolant. In these figures, reference numeral 402 denotes a bottomed cylindrical cooling tank.

  According to these Embodiments 5, the stirring of the cooling liquid is promoted by the rotation of the extraction liquid tanks 400, 400A, 400B, and the cooling effect of the extraction liquid is improved.

Side sectional drawing which shows the ice coffee extraction mode of the coffee maker which is one Example of this invention The exploded perspective view which similarly shows the coupling | bond part of an extraction funnel and an extraction liquid tank Side sectional view showing the hot coffee extraction mode The figure which shows another Example The figure which shows another Example The figure which shows another Example Diagram explaining the rotation trajectory of the extract tank The figure which shows the other Example of an extract tank

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,100 Main body 12 Bottom part 14,114,114A, 214,314 Partition wall 16 Upper wall part 18 Standing part 22,164,253C, 339B Motor (rotation drive part)
24 Drive shaft 26 Chuck 30 Hot water tray 32 Heater 40 Filter 42, 142 Water tank 50, 150, 350 Ice coffee extraction funnel (extraction funnel)
52, 152, 252, 352 Cooler 52A, 152A, 252A, 352A Coffee liquid container (extracted liquid tank)
52B, 152B, 252B, 352B Cooling tank 54, 154, 254 Stirrer blade 156 Ice coffee discharge valve 66 Jug 80 Control unit 82 Input means 84 Temperature sensor A Rotation center axis of drive shaft (center line of cooling tank)
B Center line of the extract tank

Claims (9)

An extraction liquid tank for accumulating the extraction liquid extracted by the beverage extraction means; and a cooling tank for storing a cooling liquid in contact with the extraction liquid through a tank wall of the extraction liquid tank, the extraction liquid being the cooling liquid In the cold beverage maker,
A rotation driving unit that rotates at least one of the extraction liquid tank and the cooling tank to give a relative rotational speed difference between the two tanks, and a stirring blade that is provided in the extraction liquid tank and stirs the cooling liquid. Beverage maker. An extraction liquid tank for accumulating the extraction liquid extracted by the beverage extraction means; and a cooling tank for storing a cooling liquid in contact with the extraction liquid through a tank wall of the extraction liquid tank, the extraction liquid being the cooling liquid In the cold beverage maker,
A rotation driving unit that rotates at least one of the extraction liquid tank and the cooling tank to give a relative rotational speed difference between the two tanks, and the unevenness for stirring the cooling liquid is formed on the tank wall of the extraction liquid tank. Beverage maker characterized by.   The beverage maker according to claim 2, wherein the extraction liquid tank has a substantially star shape or polygonal shape whose radius changes periodically in a circumferential direction in a plan view. An extraction liquid tank for accumulating the extraction liquid extracted by the beverage extraction means; and a cooling tank for storing a cooling liquid in contact with the extraction liquid through a tank wall of the extraction liquid tank, the extraction liquid being the cooling liquid In the cold beverage maker,
A rotation drive unit configured to rotate at least one of the extraction liquid tank and the cooling tank to give a relative rotational speed difference between the two tanks, the extraction liquid tank being eccentric with respect to a vertical center line of the cooling tank, and a center line of the cooling tank; A beverage maker characterized by rotating relative to each other.   The beverage maker according to any one of claims 1 to 4, wherein the extract tank is rotationally driven.   The beverage brewing device according to any one of claims 1 to 5, wherein the beverage extraction means is formed of an extraction funnel that contains a beverage extraction raw material and discharges the extract to an extract solution tank.   The beverage extraction means is an extraction funnel that is rotationally driven around a vertical line above the extract tank, and the extract tank is detachably attached to the extract funnel and rotates integrally with the extract funnel. Item 1. A beverage maker according to any one of Items 1, 2, and 3.   The beverage maker according to any one of claims 1 to 4, wherein the extraction liquid tank and the cooling tank are respectively driven to rotate by separate rotation driving units. The beverage maker according to claim 1 or 2, wherein the extract tank is rotatably held in the cooling tank, and a discharge valve for discharging the extract through the bottom surface of the cooling tank is attached to the bottom of the extract tank. .

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