JP2008017980A - Coffee mill apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coffee mill apparatus capable of preventing bean clogging which occurs inside a coffee bean path and smoothly forming ground beans. <P>SOLUTION: In the coffee mill apparatus 40 comprising a coffee mill 43 provided in a mill main body 22 for pulverizing coffee beans and forming the ground beans, a canister 9 for storing the coffee beans and the coffee bean path 41 formed in the mill main body 22 for guiding the coffee beans falling from the exit part 61 of the canister 9 to the coffee mill 43, the canister 9 is provided in such a state that the exit part 61 corresponds to the entrance part 41A of the coffee bean path 41, and an extension part 63 inserted from the entrance part 41A into the coffee bean path 41 so as to be freely inserted and detached to cover the inner wall surface of the coffee bean path 41 is formed at the exit part 61. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a coffee mill device used in a coffee beverage production apparatus, and more particularly to a coffee mill device that prevents bean clogging in a coffee mill.

  2. Description of the Related Art Conventionally, a coffee beverage production apparatus includes a coffee mill that pulverizes coffee beans to a predetermined particle size to produce ground beans and supplies the ground beans to an extractor. This coffee mill has, for example, a pair of crushing blades formed in a disk shape and arranged to face each other, and the coffee beans stored in the coffee bean storage unit are fed between the rotating crushing blades for crushing. As a result, ground beans are formed and supplied to the extractor. The particle size of the ground beans can be adjusted by changing the interval between the grinding blades (Patent Document 1).

  18 is a vertical side view of a conventional coffee mill device 100, and FIG. 19 is a perspective view of the coffee bean storage unit 101 as viewed from below. The coffee mill device 100 includes a main body 102 and a coffee bean storage unit 101 placed on the upper part of the main body 102. The main body 102 has a coffee bean passage 105 that opens upward (inlet part) in the interior, and the coffee bean passage 105 includes a fixed blade 103 and a rotary blade 104 (both blades) that pulverize coffee beans to form ground beans. Constitute a grinding blade). A ground bean discharging unit 106 is formed below the gap between the two blades 103 and 104, and the ground beans are guided to the weighing unit 107 formed below the main body 102 through the ground bean discharging unit 106. It is said.

The coffee bean storage unit 101 is configured by a container that opens to the upper surface and the lower surface, and the lower surface opening 108 has a tapered shape with a smaller diameter than the upper surface opening 109. The upper surface opening 109 includes a lid 110 that can be freely opened and closed, so that coffee beans can be introduced from the upper surface opening 109, and coffee beans can be discharged from the lower surface opening 108 to the inlet portion of the coffee bean passage 105 of the main body 102.
JP 2001-258766 A

  However, according to the coffee mill apparatus 100, the coffee beans are in close contact with each other in the coffee bean storage unit 101 or the coffee bean passage 105 based on the grain shape and the contact state of the coffee beans, and the beans are clogged. There is. In addition, the coffee beans are fixed to each other by the oil and fat content from the coffee beans, or the ground coffee powder adheres and accumulates on the coffee bean passage 105, the coffee beans become a bridge shape, the lower part of the mill is hollowed, A state occurs in which the coffee beans cannot be fed between the grinding blades.

  As a result, the supply of ground beans stagnate, and the coffee bean storage unit 105 has a disadvantage that it cannot supply ground beans to the extractor even though the coffee beans are sufficiently stored. .

  In addition, once the bean jam occurs, the coffee bean storage unit 101 is removed and the coffee bean passage 105 is opened. Need to be removed. However, cleaning the coffee bean passage 105 is not preferable from the viewpoint of safety, and in particular, cleaning using water may cause a new trouble due to poor drying or the like. It is not preferable.

  Further, in the conventional coffee mill apparatus 100, as shown in FIG. 18, the coffee beans falling from the lower surface opening 108 of the coffee bean storage unit 101 are placed between the fixed blade 103 and the rotary blade 104 in the coffee bean passage 105. A bean feed member 111 that is conveyed to the gap is provided. The bean feed member 111 is formed of a spiral member wound around the rotary shaft 113 that transmits the rotational force of the motor 112 to the rotary blade 104 at a predetermined pitch and coaxially fixed to the rotary shaft 113. The

  However, in such a configuration, the coffee beans remaining below the bean feeding member 111 are liable to collapse and become coffee powder, which causes a disadvantage that the coffee powder accumulates in the coffee bean passage. The coffee powder adheres to and accumulates on the inner wall of the coffee bean passage 105 together with the coffee powder leaked from the gap between the rotary blades 104 toward the coffee bean passage 105, and grows around the bean feed member 111. There is a problem that the coffee beans cannot be sent to the rotary blade 104.

  Furthermore, the bean feeding member 111 is supported at one end (motor side) by a cap-shaped coffee bean scattering member 114 having an opening on the rotary blade 104 side. In such a configuration, the rotational force of the bean feeding member 111 is diverged. Therefore, there is a problem that the coffee beans cannot be efficiently sent to the rotary blade 104 side.

  Further, since the coffee bean scattering member 114 is formed in a cylindrical shape (substantially circular in cross section) extending in the axial direction with respect to the rotation shaft 113, the coffee bean abutting against the coffee bean scattering member 114 is rotated by a rotational force. There was a problem that the coffee beans that could not be smoothly ejected and the coffee beans fixed on the inner wall of the coffee bean passage 105 could not be eliminated smoothly.

  Therefore, the present invention has been made to solve the conventional technical problem, and can prevent bean clogging occurring in the coffee bean passage and can smoothly form ground beans. I will provide a.

  The coffee mill device according to the first aspect of the present invention is provided in the main body, and pulverizing means for pulverizing the coffee beans to form ground beans, a coffee bean storage section for storing the coffee beans, and a coffee bean storage formed in the main body. A coffee bean passage for guiding coffee beans falling from the outlet portion of the portion to the pulverizing means, and the coffee bean storage portion is provided with the exit portion corresponding to the inlet portion of the coffee bean passage, The outlet portion is formed with an extending portion that is detachably inserted into the coffee bean passage from the inlet portion and covers the inner wall surface of the coffee bean passage.

  A coffee mill device according to a second aspect of the present invention is provided in a main body, and is formed in the main body, pulverizing means for pulverizing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and a coffee bean storage A coffee bean passage for guiding the coffee beans falling from the outlet of the unit to the pulverizing means, a bean feed member disposed in the coffee bean passage for rotation and conveying the coffee beans dropped from the coffee bean storage section to the pulverizing means, The bean feed member comprises a spiral member wound at a predetermined pitch around a rotation shaft that transmits the rotational force of the motor to the crushing means and coaxially fixed to the rotation shaft. In addition, some of the diameters are larger than those of the other parts.

  A coffee mill device according to a third aspect of the present invention is provided in the main body, and pulverizing means for pulverizing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and a coffee bean storage formed in the main body. A coffee bean passage for guiding the coffee beans falling from the outlet of the unit to the pulverizing means, a bean feed member disposed in the coffee bean passage for rotation and conveying the coffee beans dropped from the coffee bean storage section to the pulverizing means, A coffee bean scattering member that is provided coaxially with the bean feeding member and rotates, and is used for scattering coffee beans falling on the bean feeding member. A flat portion is formed in a part of the structure.

  According to a fourth aspect of the present invention, the coffee bean scattering member is fixed to one end of the bean feeding member.

  According to the first aspect of the present invention, a crushing means provided on the main body for crushing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, a main body, and a coffee bean storage section In the coffee mill apparatus comprising the coffee bean passage for guiding the coffee beans falling from the outlet portion to the pulverizing means, the coffee bean storage portion is provided with the outlet portion corresponding to the inlet portion of the coffee bean passage, and the outlet portion Is inserted into the coffee bean passage from the entrance portion so as to be detachable, and an extending portion is formed to cover the inner wall surface of the coffee bean passage. It is possible to avoid the inconvenience of adhering and depositing directly at the entrance of the coffee bean passage formed in the main body.

  As a result, it is possible to avoid the inconvenience that the coffee powder adheres and accumulates directly at the entrance of the coffee bean passage where it is difficult to remove and wash the adhered coffee powder. Conventionally, the coffee powder and oil / fat content deposited and deposited on the inner wall surface of the coffee bean passage adhere to the inner wall surface of the outlet of the coffee bean storage unit. Since the coffee bean storage part can be separated from the main body, the outlet part can be easily cleaned, and it is possible to easily remove bean clogs and adhered coffee powder.

  Therefore, it becomes possible to eliminate the inconvenience that the coffee beans are bridged and the supply of the ground beans stagnate, and the smooth supply of the ground beans can be realized.

  Further, even when the coffee bean storage unit is washed with water, it can be easily dried, so that it is possible to avoid the inconvenience of causing a new trouble due to poor drying or the like.

  According to invention of Claim 2, it is provided in the main body, pulverizing means for pulverizing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and formed in the main body, of the coffee bean storage section A coffee bean passage for guiding coffee beans falling from the outlet to the crushing means, and a bean feed member that is disposed in the coffee bean passage and rotates to convey the coffee beans dropped from the coffee bean storage to the crushing means. In the coffee mill apparatus, the bean feed member is formed of a spiral member wound at a predetermined pitch around a rotating shaft that transmits the rotational force of the motor to the pulverizing means and coaxially fixed to the rotating shaft. At the same time, since some of the diameters are larger than those of the other parts, it is possible to guide the coffee beans introduced into the coffee bean passage to the grinding means by the bean feeding member that rotates in synchronization with the rotation of the grinding means. To become.

  In particular, the bean feeding member is composed of a spiral member that is wound and fixed coaxially with a rotating shaft that transmits the rotational force of the motor to the crushing means at a predetermined pitch, and one part has a larger diameter than other parts. Therefore, the coffee beans remaining in the lower part of the coffee bean passage can be smoothly guided to the pulverizing means by the large diameter portion at the time of ground beans.

  Therefore, generation | occurrence | production of the powder by the bean collapse of the coffee bean remaining in the lower part of the coffee bean passage can be suppressed, and the inconvenience that the coffee powder is accumulated in the coffee bean passage can be reduced.

  According to invention of Claim 3, it is provided in the main body, pulverizing means for pulverizing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and formed in the main body of the coffee bean storage section A coffee bean passage for guiding coffee beans falling from the outlet to the crushing means, and a bean feed member that is disposed in the coffee bean passage and rotates to convey the coffee beans dropped from the coffee bean storage to the crushing means. The coffee mill device includes a coffee bean scattering member that is provided coaxially with the bean feed member and rotates to scatter coffee beans falling on the bean feed member. Since the flat part is formed in the part, the coffee beans on the upper part can be swung by the coffee beans that are in contact with the flat part of the coffee bean scattering member, and the coffee beans are fixed to each other. It is possible to stop.

  As a result, the supply of ground beans will stagnate, and the coffee bean storage unit avoids the inconvenience that the ground beans cannot be supplied to the extractor even though the coffee beans are sufficiently stored. It becomes possible.

  According to the invention of claim 4, in addition to the above invention, since the coffee bean scattering member is fixed to one end of the bean feed member, the bean feed to the coffee bean scattering member fixed to the rotating shaft is performed. Since one end of the member is fixed, it is possible to improve the transporting power of the coffee beans, and it is possible to realize smooth feeding of the coffee beans to the pulverizing means.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a coffee beverage production apparatus 1 of the present invention, a side view of the coffee beverage production apparatus 1 of FIG. 2, and FIG. 3 shows an internal schematic configuration diagram of the coffee beverage production apparatus 1.

  The present embodiment is a coffee beverage production apparatus 1 provided with a coffee mill device 40 of the present invention, and is constituted by a main body 6 provided with a nozzle member 4 provided with a coffee liquid nozzle 2 for discharging coffee liquid on the front surface. . Below the nozzle member 4 is provided a cup support 7 on which a cup for receiving the extracted coffee liquid is placed. In FIG. 1, reference numeral 5 denotes a plurality of beverage selection buttons for selecting the type of beverage to be discharged, and reference numeral 8 accepts the residue used for extracting the coffee liquid and accepts the residue that can be drawn forward. 9 is a canister (coffee bean storage part) which accommodates coffee beans.

  Here, the internal configuration of the coffee beverage manufacturing apparatus 1 will be described with reference to FIG. A coffee beverage production apparatus 1 according to the present embodiment includes a hot water tank 11, a pump (gear pump) 12 attached to the bottom of the hot water tank 11, a coffee mill device 40, which will be described in detail later, and a coffee extractor. 13.

  The hot water tank 11 is a tank that can store several liters of drinking water, and a heater (not shown) that heats and holds the stored drinking water at, for example, + 97 ° C. is provided therein. A pump 12 provided at the bottom of the hot water tank 11 is a pump that pressurizes and discharges hot water in the hot water tank 11, and a flow meter 14 and a hot water supply side electromagnetic valve 15 are provided at the discharge port of the pump 12. Are connected to a hot water supply side pipe 16, and the other end of the hot water supply side pipe 16 is connected to a coffee extractor 13.

  The hot water supply side pipe 16 is connected to a circulation pipe 18 provided with a circulation electromagnetic valve 17 that is located between the flow meter 14 and the hot water supply side electromagnetic valve 15 and constitutes a circulation path. The other end of the circulation pipe 18 is connected to the hot water tank 11. Further, the circulation pipe 18 is connected to a bypass pipe 19 that is located between the circulation solenoid valve 17 and the hot water tank 11 and connects the pump 12. The bypass pipe 19 is provided with a relief valve 21 for returning the hot water in the pump 12 to the hot water tank 11.

  The hot water supply side pipe 16 is connected with a hot water discharge pipe 26 located between the hot water side solenoid valve 15 and the coffee extractor 13 and having one end opened to the outside. The hot water discharge pipe 26 is provided with a residual liquid relief valve 27 for controlling discharge of residual liquid in the coffee extractor 13 and the extraction side pipe 24 described later.

  On the other hand, a coffee mill device 40 including a canister 9 and a miss main body 22 is disposed above the coffee extractor 13 at the upper part of the main body 6. Here, with reference to FIG. 4 thru | or FIG. 7, the coffee mill apparatus 40 of this invention is explained in full detail. 4 is a perspective view of the canister 9 as viewed from below, FIG. 5 is a perspective view of the mill body 22, FIG. 6 is a longitudinal side view of the coffee mill device 40, and FIG. 7 is a perspective view of the bean scattering member 54.

  The coffee mill device 40 includes a mill main body 22 disposed above the extractor 13 and a canister 9 disposed above the mill main body 22. The mill body 22 has a top plate 59 at the top, and the top plate 59 is formed with an introduction hole 59A communicating with the coffee bean passage 41 formed inside. The coffee bean passage 41 is a passage that guides the coffee beans falling from the canister 9 downward, and includes an inlet portion 41A formed in the vicinity of the introduction hole 59A and the inlet portion 41A before the bean feed member 53 described later. It is comprised by the whole path | route to the coffee mill (grinding means) 43 which grind | pulverizes the coffee beans supplied through the bean introduction part 41B and the bean feed member 53, and makes it into ground beans.

  The coffee mill 43 includes a rotary blade 45 that is rotatably accommodated in the mill body 22 and crushes coffee beans, and a fixed blade 44 that is fixed in the mill body 22 so as to face the rotary blade 45. In this embodiment, the rotary shaft 47 has a D-cut shape, and the rotary blade 45 has a shape corresponding to the D-cut shape. The rotary blade 45 is connected to the mill motor 46 via the rotary shaft 47. The rotational force is transmitted. The rotary blade 45 is slidably coupled to the axial direction of the rotary shaft 47 and is rotatably supported by the rotary blade adjusting member 49 via a bearing 48.

  Further, the rotary blade adjusting member 49 has a screw portion (not shown) that is screwed with a screw portion (not shown) formed on the mill main body 22, and a gear portion (not shown) formed at the end is gear-driven by a distance adjusting motor. Thus, the rotary blade 45 is moved in the axial direction of the rotary shaft 47. A seal member 50 is provided between the rotary blade adjusting member 49 and the mill main body 22, and the rotary blade adjusting member 49 is covered with a lid 51 that is detachably provided on the end surface of the mill main body 22. Therefore, it is possible to adjust the interval between the rotary blade 45 and the fixed blade 44 by operating the exposed rotary blade adjustment member 49 with the lid 51 opened.

  Further, below the gap between the rotary blade 45 and the fixed blade 44 constituting the coffee mill 43, a ground bean discharging unit 57 that discharges ground beans crushed by the rotary blade 45 and the fixed blade 44 to the measuring device 28 at the subsequent stage. Is provided.

  A bean feed member 53 is attached around the rotary shaft 47 and is formed of a spiral member that is wound at a predetermined pitch and is coaxially fixed to the rotary shaft 47. The bean feeding member 53 is formed with a deformed portion 53 </ b> A, part of which is formed with a larger diameter than the other part. The deformed portion 53A in the present embodiment is formed so as to be located substantially directly below the coffee beans falling from the canister 9, and is a position that is not in contact with the bottom surface of the coffee bean passage 41 more than other portions, and is close to It is formed to extend to the position.

  The bean feeding member 53 has a predetermined elastic force with respect to the axial direction of the rotating shaft 47, and is between the rotating blade 45 and the bean scattering member (coffee bean scattering means) 54 located on the mill motor 46 side. It is arranged. An end portion located on the rotary blade 45 side is formed with a fixing portion (not shown) that extends substantially perpendicular to the rotary blade 45 so as to be inserted and fixed in a fixing hole (not shown) formed in the rotary blade 45. In addition, the end portion located on the side of the bean scattering member 54 extends substantially perpendicular to the bean scattering member 54 so as to be inserted and fixed in a fixing hole 55 formed in the bean scattering member 54 as shown in FIG. A fixing portion (not shown) is formed.

  Thereby, the bean feeding member 53 is positioned between the rotary blade 45 and the bean scattering member 54 and is fixed around the rotating shaft 47 so as to always press both. Therefore, when the rotary shaft 47 is rotated by the mill motor 46, the bean feeding member 53 and the bean scattering member 54 are rotated together with the rotary blade 45.

  On the other hand, the bean scattering member 54 is a substantially cylindrical member formed extending horizontally with respect to the axial direction of the rotating shaft 47, and has an outwardly widened flange on the end face on the bean feed member 53 side. 54A is formed, and the fixing hole 55 is formed in the flange 54A. A flat portion 56 that is horizontally cut out is formed on a part of the outer peripheral surface of the bean scattering member 54. In the present embodiment, as shown in FIG. 7, the flat portion 56 is formed only on one surface, but the present invention is not limited to this, and a plurality of flat portions 56 may be formed.

  On the other hand, the canister 9 is constituted by a container that opens upward, and the upper surface opening is closed so as to be freely opened and closed by a lid member 60 having a locking mechanism. And it is made into a taper shape as it goes under the canister 9, The exit part 61 for discharging | emitting the coffee beans accommodated in the inside is formed in the lower end of the said canister 9. In FIG.

  An outwardly extending flange 62 is formed above the outlet portion 61 and below the canister 9. The flange 62 is placed on and supported by the upper surface of the main body 6 of the coffee beverage production apparatus 1. Is done.

  The outlet portion 61 is provided corresponding to the top of the inlet portion 41A of the coffee bean passage 41 of the mill body 22, and the outlet portion 61 is integrally formed with an extending portion 63 downward. Yes. The extending portion 63 can be removably inserted into the coffee bean passage 41 from the inlet portion 41A. The extending portion 63 is an inner wall of the coffee bean passage 41 in a range extending from the inlet portion 41A of the coffee bean passage 41 formed in the mill body 22 to the bean introduction portion 41B (range from the inlet portion 41A to the front of the bean feeding member 53). It corresponds to the inside, and thereby the inner wall of the coffee bean passage 41 is covered.

  In the present embodiment, the inlet 41A of the coffee bean passage 41 is located in front of the coffee bean passage 41 and is provided with a rotary blade 45 and a fixed blade 44 constituting the coffee mill 43. It is formed so as to recede from the front portion, that is, from the entrance portion of the coffee bean passage 41 to the middle stage. Therefore, the extension part 63 of the canister 9 in the present embodiment is also formed such that the front part retreats from the upper part to the lower end according to the shape of the inlet part 41A formed in the mill body 22.

  Thereby, the range from the inlet 41 </ b> A of the coffee bean passage 41 to the bean feeding member 53 is detachably covered by the extension 63 formed integrally with the canister 9.

  On the other hand, below the coffee mill device 40, the meter 28 as described above is disposed. This measuring instrument 28 has a measuring chamber 65 formed in front corresponding to the lower side of the ground bean discharging portion 57 of the coffee mill device 40, and a control device to be described later is provided in front of the measuring chamber 65. A lid 66 controlled to be opened and closed by 70 is attached. In addition, a detection unit 67 that detects whether or not the volume of ground beans accumulated in the measurement chamber 65 is set to a predetermined volume is provided behind the measurement chamber 65. An extrusion member 68 for pushing the accumulated ground beans forward is provided.

  A chute 23 for receiving ground beans discharged from the front of the weighing chamber 65 whose lid 66 is opened by the pushing member 68 in the coffee extractor 13 is disposed in the lower front portion of the weighing chamber 65. An extraction side pipe 24 constituting a coffee liquid extraction path is connected to the lower part of the coffee extractor 13, and an extraction electromagnetic valve 25 for controlling the discharge of the extracted coffee liquid is connected to the extraction side pipe 24. Is installed. The coffee liquid nozzle 2 is connected to an extraction side pipe 24 downstream of the extraction electromagnetic valve 25. As a result, the coffee liquid can be poured into a cup (not shown) arranged on the cup support 7.

  In addition, sugar and cream are injected into the cup at the request of the purchaser along with the injection of coffee liquid, but the illustration and description of these supply systems are omitted.

  Next, the configuration of the coffee extractor 13 will be described with reference to FIG. The coffee extractor 13 includes a cylinder 31 that stores ground beans supplied from the coffee mill device 40 via the chute 23, a piston 32 that can be inserted into and removed from the cylinder 31, and a piston drive that drives the piston 32. A motor 33 and a torque transmission part 34 for connecting the motor 33 and the piston 32 are provided. The cylinder 31, the piston 32, the piston drive motor 33, and the torque transmission part 34 constitute a cylinder unit D. . The coffee extractor 13 includes a unit drive motor 35 for tilting the entire cylinder unit D at a predetermined angle, a lid member 36 for closing the upper surface opening of the cylinder 31 when the cylinder unit D is tilted, and the lid. A gear 37 for engaging the member 36 with the cylinder 31 using the unit drive motor 35 as a drive source is provided. The gear 37 is supported by a rotating shaft 37A. The lid member 36 is configured such that the hot water supply side pipe 16 can be inserted through a through hole (not shown) formed in the lid member 36, and the torque transmission portion 34 is provided at the bottom opening of the cylinder 31. The extraction side piping 24 is connected via In FIG. 8, W is a wiper provided below the chute 23.

  The coffee beverage production apparatus 1 according to the present embodiment includes a control device 70 as shown in FIG. 9, and this control device 70 includes a memory for storing programs and data, a timer for generating a clock signal, the clock signal, and the clock signal. A CPU that operates based on a program is provided. Further, a beverage selection button 5, a flow meter 14 and the like are connected to the input side of the control device 70, and the pump 12, the hot water supply side electromagnetic valve 15, the circulation electromagnetic valve 17, and the relief are connected to the output side. The valve 21, the extraction side electromagnetic valve 25, the residual liquid relief valve 27, the piston drive motor 33, the unit drive motor 35, the mill motor 46, the drive motor 71 that drives the pushing member 68, etc. are connected and controlled based on the control device 70. Shall be.

  Next, a method for providing a coffee beverage by the coffee beverage manufacturing apparatus 1 of the present embodiment will be described. First, the coffee beans used in the canister 9 of the coffee mill device 40 are introduced. At this time, the outlet portion 61 of the canister 9 is introduced into the canister 9 because the extending portion 63 formed integrally is inserted along the inner wall of the inlet portion 41A of the coffee bean passage 41 of the mill body 22. The coffee beans are introduced into the coffee bean passage 41 of the mill main body 22 through the extension portion 63, and in the bean introduction portion 41 </ b> B and the inlet portion 41 </ b> A of the coffee bean passage 41 (specifically, in the extension portion 63). Filled with coffee beans.

  When any one of the beverage selection buttons 5 provided on the main body 6 is operated, an extraction start input is performed to the control device 70 and the mill motor 46 is driven. In this embodiment, the rotary drive is performed at a rotational speed of 4000 to 5000 times / minute, and the rotary drive is performed for about 3 to 4 seconds in order to form ground beans required for extraction of one cup of coffee. When the mill motor 46 is driven to rotate, the coffee beans around the rotary shaft 47 are sent in the direction of the fixed blade 44 and the rotary blade 45 based on the feed operation of the bean feed member 53.

  At this time, the bean feed member 53 is wound around the rotary shaft 47 that transmits the rotational force of the mill motor 46 to the rotary blade 45 of the coffee mill 43 at a predetermined pitch, and is coaxially fixed to the rotary shaft 47. Since it is constituted by a spiral member, the coffee beans introduced into the coffee bean passage 41 are guided between the rotary blade 45 and the fixed blade 44 by the bean feed member 53 that rotates in synchronization with the rotation of the rotary blade 45. It becomes possible.

  Further, since the bean feeding member 53 is formed with a deformed portion 53A having a diameter larger than that of the other portion, the coffee remaining in the lower portion of the coffee bean passage 41 by the deformed portion 53A having a larger diameter. The beans can be smoothly guided to the rotary blade 45.

  Therefore, it is possible to suppress the generation of powder due to the collapse of the coffee beans remaining in the lower part of the coffee bean passage 41, and to reduce the inconvenience that the coffee powder accumulates in the coffee bean passage 41.

  As described above, the coffee beans conveyed between the rotary blade 45 and the fixed blade 44 are pulverized between the rotary blade 45 and the fixed blade 44 by the rotational force of the rotary blade 45, and the crushed ground beans are It moves outward by centrifugal force, and is sent to the chute 23 via the ground bean discharging part 57 formed below.

  On the other hand, the coffee beans are filled with the coffee beans B from the canister 9 into the mill main body 22, that is, into the bean introduction part 41B and the entrance part 41A of the coffee bean passage 41. Depending on the degree of roasting, the passability may decrease at the portion where the cross-sectional change of the bean introduction portion 41B is mainly occurring, and bean clogging may occur. Once the bean clogging occurs, the clogged portion is compacted by the weight of the coffee beans supplied from the canister 9 side, resulting in a strong clogging.

  However, the coffee mill device 40 according to the present embodiment can press the coffee beans that cause clogging by the deformed portion 53A formed on the bean feeding member 53, thereby eliminating the bean clogging. Furthermore, in this embodiment, since a flat portion 56 is formed on a part of the outer peripheral surface of the bean scattering member 54 to which one end of the bean feeding member 53 is fixed, the coffee beans that are in contact with the flat portion 56 are formed. Can be scattered upward (repels), thereby swinging the coffee beans that are in close contact with each other and adhering to each other, thereby preventing the inconvenience of the coffee beans from adhering to each other. Therefore, the coffee beans adhering to the inner wall of the coffee bean passage 41 can be effectively dropped, and the coffee beans can be secured.

  As a result, the supply of ground beans stagnate, and the canister 9 avoids the inconvenience that the ground beans cannot be supplied to the coffee extractor 13 even though the coffee beans are sufficiently stored. It becomes possible.

  Furthermore, since the bean feed member 53 that transports the coffee beans in the coffee bean passage 41 to the rotary blade 45 is fixed to the bean scattering member 54 as described above, the transport ability of the coffee beans can be improved. It becomes possible, and smooth coffee bean feeding to the rotary blade 45 can be realized.

  In the coffee bean passage 41, the coffee powder adheres and accumulates on the inner wall surface, particularly the inlet 41A due to the oil and fat contained in the coffee powder and the coffee bean itself that have collapsed due to the contact between the coffee beans. Will be. However, in the present embodiment, an extension portion 63 formed integrally with the outlet portion 61 of the canister 9 is detachably inserted into the coffee bean passage 41 from the inlet portion 41A at the inlet portion 41A of the coffee bean passage 41. And is formed so as to cover the inner wall surface of the coffee bean passage 41, so that the oil and fat content from the coffee beans and the ground coffee powder are formed in the mill body 22 at the inlet 41 </ b> A of the coffee bean passage 41. It is possible to avoid the inconvenience of direct deposition.

  As a result, it is possible to avoid the disadvantage that the coffee powder adheres and accumulates directly at the inlet 41A of the coffee bean passage 41 where it is difficult to remove or wash the adhered coffee powder. Conventionally, the coffee powder and oil / fat components deposited and deposited on the inner wall surface of the coffee bean passage 41 adhere to the inner wall surface of the outlet portion 61 (extending portion 63) of the canister 9. Here, since the canister 9 can be separated from the mill main body 22, the outlet 61 (extension part 63) can be easily cleaned, and bean clogs and attached coffee powder can be easily removed. It becomes possible.

  Therefore, it becomes possible to eliminate the inconvenience that the coffee beans are bridged and the supply of the ground beans stagnate, and the smooth supply of the ground beans can be realized. In addition, even when the canister 9 is washed with water, it can be easily dried, so that it is possible to avoid the inconvenience of causing a new trouble due to poor drying or the like.

  Next, the extraction operation based on the extraction start input will be described. Based on the extraction start input, the control device 70 opens the circulation electromagnetic valve 17 and executes a pipe temperature raising step for performing the low speed operation of the pump 12 for a predetermined time, in this embodiment, for 4 seconds. As a result, the hot water in the hot water tank 11 is sent out by the pump 12 to the circulation solenoid valve 17 and the circulation pipe 18 constituting the circulation path via the hot water supply side pipe 16. The hot water accumulated in the hot water supply side pipe 16 positioned between the pump 12 and the hot water supply side electromagnetic valve 15 is pumped to the circulation pipe 18 via the circulation electromagnetic valve 17 and returned to the hot water tank 11. Thereby, the hot water supply side piping 16 positioned between the pump 12 and the hot water supply side electromagnetic valve 15 can be heated with hot water of about + 90 ° C. to + 95 ° C. supplied from the hot water tank 11. After the predetermined time has elapsed since the start of the pipe temperature raising step, the control device 70 stops the operation of the pump 12, then closes the circulation electromagnetic valve 17, and ends the pipe temperature raising step.

  On the other hand, the coffee extraction machine 13 is subjected to the next extraction preparation step after the end of the previous coffee liquid supply step. That is, in the extraction preparation step, first, the control device 70 brings the cylinder 31 of the coffee extractor 13 upright as shown in FIG. 10, and the ground beans P crushed by the coffee mill device 40 as described above are as follows. It is supplied into the cylinder 31 through the chute 23. After that, when the supply of the ground beans P is completed, the control device 70 energizes the piston drive motor 33 to drive and operate the gear 37 as shown in FIG. The cylinder 31 is tilted at a predetermined angle by rotating downward (in the direction of the arrow). Thereafter, the control device 70 seals the upper end opening of the cylinder 31 with the lid member 36 as shown in FIG. At this time, the control device 70 lowers the lid member 36 in synchronization with the inclination of the cylinder unit D, inserts it into the cylinder 31, and stops the driving of the piston drive motor 33. At this time, it is assumed that the gear 37 is stopped at a position rotated 180 ° from the state of FIG. Further, as shown in FIG. 13, the control device 70 operates the piston drive motor 33 to push up the piston 32 via the torque transmission unit 34 and compress the ground beans P in the cylinder 31.

  In this state, the control device 70 proceeds to the coffee liquid extraction step, opens the supply-side electromagnetic valve 15 and drives the pump 12. As a result, hot water heated to about + 90 ° C. to + 95 ° C. at a pressure of 0.3 MPa is supplied to the cylinder 31.

  Thereafter, the controller 70 supplies hot and pressurized hot water to the cylinder 31 sealed with the cap 36 via the hot water supply side pipe 16, and extracts the coffee liquid from the compressed ground beans P. At this time, since high-temperature and high-pressure hot water is supplied into the cylinder 31, it is possible to extract a dark coffee liquid from which coffee components are sufficiently eluted from the initial extraction stage.

  The coffee liquid extracted by the cylinder 31 of the coffee extractor 13 is discharged to the coffee liquid nozzle 2 through the extraction side pipe 24 and the extraction side electromagnetic valve 25. Here, the extraction side solenoid valve 25 is set to a state in which the coffee liquid is allowed to flow at a constant pressure, for example, 0.3 MPa or more, by the control device 70, so that the extracted coffee liquid has a constant pressure. Then, a pressure of 0.3 MPa is applied by the pump 12, and further pressure is applied by the ground beans P swollen in the cylinder 31, so that a pressure of 0.4 MPa or more can be actually applied. Become. As a result, fine fine bubbles can be generated on the surface of the coffee liquid, and a coffee liquid with a rich and mellow taste and aroma can be obtained, so that the quality of the coffee liquid can be improved. Become.

  Further, immediately before supplying hot water to the cylinder 31 via the hot water supply side pipe 16, the control device 70 operates the pump 12 for a predetermined period of time, and supplies the hot water whose temperature in the pump 12 has decreased to the bypass pipe 19 and the relief valve 21. The hot water tank 11 is returned to the hot water tank 11, and new hot water is pumped to the hot water supply side pipe 16. And the control apparatus 70 stops the pump 12 once and complete | finishes replacement | exchange of the hot water in the pump 12, and closes the relief valve 21. FIG. By supplying hot water from the hot water supply side pipe 16 to the cylinder 13 with the relief valve 21 closed, higher temperature and high pressure hot water can be supplied.

  After that, the control device 70 stops the driving of the pump 12 after the extraction of the coffee liquid, and shifts to the extraction paddy disposal process. In this process, the control device 70 drives the piston drive motor 33 to further raise the piston 32 as shown in FIG. Squeeze the liquid. Thereby, the coffee liquid in the cylinder 31 is sent to the extraction side pipe 24 and the ground beans P are compressed.

  Thereafter, the control device 70 reversely rotates the piston drive motor 33 and pushes down the piston 34 as shown in FIG. 15, and a part of the hot water in the hot water supply side pipe 16 and the coffee liquid in the extraction side pipe 24 are transferred to the cylinder 31. It is sucked in. Here, since the control device 70 opens the extraction side solenoid valve 25 and the residual liquid relief valve 27, the inside of the hot water supply side pipe 16 of the extraction side pipe 24 and the coffee extractor 13 and the residual liquid relief valve 27 is put into the atmosphere. The remaining liquid remaining in the hot water supply side pipe 16 is discharged from the hot water discharge pipe 26 to the outside. Thereby, circulation of the residual liquid in the extraction side piping 24 can be facilitated, and the residual liquid can be processed efficiently. Therefore, at the time of the next extraction of the coffee liquid, it is possible to avoid the disadvantage that the residual liquid from the previous extraction is mixed and the quality is deteriorated.

  Thereafter, the control device 70 operates the motor 35 and the gear 37 to separate the lid member 36 from the upper end opening of the cylinder 31 as shown in FIG. Further, the control device 70 operates the piston drive motor 33 to push up the piston 32 again. As a result, the extracted mash of ground beans P is pushed up from the bottom of the cylinder 31. Further, the control device 70 operates the motor 35 and the gear 37 as shown in FIG. 17 to rotate the cylinder unit D upward (in the direction of the arrow) to bring the cylinder 31 into an upright state. By this rotation, the extracted soot pushed out from the cylinder 31 is scraped off by the wiper W provided at the lower portion of the chute 23, falls into the residue receiving portion 8, and is discarded. Thereafter, after discarding the extraction basket, the control device 70 drives the piston drive motor 33 in the reverse direction to lower the piston 32 to complete one sales operation.

  With the above configuration, according to the present embodiment, espresso coffee capable of forming fine high-quality bubbles on the upper surface can be supplied to the cup. This makes it possible to improve the quality both tastefully and visually.

It is a front view of the coffee drink manufacturing apparatus of this invention. It is a side view of a coffee drink manufacturing apparatus. It is an internal schematic block diagram of a coffee drink manufacturing apparatus. It is the perspective view which looked at the canister from the downward direction. It is a perspective view of a mill body. It is a vertical side view of a coffee mill apparatus. It is a perspective view of a bean scattering member. It is the schematic which shows the structure of a coffee extractor. It is a block diagram of a control apparatus. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is explanatory drawing which shows operation | movement of a coffee extractor. It is a vertical side view of the conventional coffee mill apparatus. It is the perspective view which looked at the conventional coffee bean storage part from the downward direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coffee drink manufacturing apparatus 2 Coffee liquid nozzle 5 Beverage selection button 6 Main body 7 Cup support stand 8 Residue receiving part 9 Canister (coffee bean storage part)
13 Coffee Extractor 22 Mill Body 23 Chute 28 Meter 40 Coffee Mill Device 41 Coffee Bean Passage 43 Coffee Mill (Crushing Means)
44 Fixed blade 45 Rotating blade 46 Mill motor 47 Rotating shaft 49 Rotating blade adjusting member 53 Bean feeding member 53A Deformed portion 54 Bean scattering member 55 Fixed hole 56 Flat portion 57 Ground bean discharging portion 60 Lid member 61 Outlet portion 62 Flange 63 Extending portion 70 Controller

Claims (4)

Crushing means provided in the main body for crushing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and coffee beans formed in the main body and falling from the outlet of the coffee bean storage section In a coffee mill device comprising a coffee bean passage for guiding to the crushing means,
The coffee bean storage unit is provided in a state in which the outlet portion corresponds to the inlet portion of the coffee bean passage, and the outlet portion is detachably inserted into the coffee bean passage from the inlet portion, An extended portion that covers the inner wall surface of the coffee bean passage is formed. Crushing means provided in the main body for crushing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and coffee beans formed in the main body and falling from the outlet of the coffee bean storage section A coffee bean device comprising: a coffee bean passage that guides the coffee beans to the pulverizing means; and a bean feed member that is disposed in the coffee bean passage and rotates to convey the coffee beans dropped from the coffee bean storage unit to the pulverizing means. In
The bean feeding member is formed of a helical member wound at a predetermined pitch around a rotating shaft that transmits the rotational force of the motor to the crushing means, and is coaxially fixed to the rotating shaft, and partly Is a coffee mill apparatus characterized in that the diameter is larger than other parts. Crushing means provided in the main body for crushing coffee beans to form ground beans, a coffee bean storage section for storing coffee beans, and coffee beans formed in the main body and falling from the outlet of the coffee bean storage section A coffee bean device comprising: a coffee bean passage that guides the coffee beans to the pulverizing means; and a bean feed member that is disposed in the coffee bean passage and rotates to convey the coffee beans dropped from the coffee bean storage unit to the pulverizing means. In
It is provided coaxially with the bean feeding member and rotates, and comprises a coffee bean scattering member for scattering the coffee beans falling on the bean feeding member,
A coffee mill apparatus, wherein a flat portion is formed on a part of the outer peripheral surface of the coffee bean scattering member.   The said coffee bean scattering member is being fixed to the end of the said bean feed member, The coffee mill apparatus of Claim 3 characterized by the above-mentioned.

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