JP2005270673A - Beverage extraction unit and beverage extraction apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beverage extraction unit, facilitating maintenance. <P>SOLUTION: A frame body 54 is provided with an extraction mechanism 57 for passing hot water through an extraction raw material to extract beverage, and an extraction raw material supply and discharge mechanism 58 for supplying the extraction raw material to the extraction mechanism 57 and discharging the extracted raw material from the extract mechanism 57. The frame body 54 is provided with a driving gear 62 receiving the supply of driving force from the outside to transmit the same to the extraction mechanism 57 and the extraction raw material supply and discharge mechanism 58. A body unit on which a beverage extraction unit 13 is removably mounted is provided with a motor gear meshing with the driving gear 62 and a motor for driving the motor gear. The motor is provided on the body unit, whereby the beverage extraction unit can be washed without taking it apart to facilitate maintenance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a beverage extraction unit for extracting a beverage from an extraction raw material, and a beverage extraction apparatus using the beverage extraction unit.

  2. Description of the Related Art Conventionally, for example, in a beverage extraction device that extracts espresso coffee, coffee powder is supplied onto a lower piston in a cylinder, and the upper piston is lowered to enter the cylinder, and the cylinder is interposed between the lower piston and the upper piston. The coffee powder inside is compressed, and the espresso coffee extract is extracted through hot water of a predetermined pressure through the compressed coffee powder. After extraction, the upper piston is raised from the cylinder, the upper surface of the lower piston is raised to a position that is flush with the upper surface of the cylinder, and the scraper is moved onto the lower piston to discharge the extracted raw material. .

  A dedicated motor is used to move the upper and lower pistons in the vertical direction, and a dedicated motor is also used to reciprocate the scraper.

The cylinder, the upper and lower pistons, the scraper, etc. are arranged on the frame, and the electric parts such as the motor for driving the upper piston and the lower piston, the motor for driving the scraper, and the switch for detecting the position of the scraper are also the same frame. (For example, refer to Patent Document 1).
JP 2003-299576 A (page 3, FIG. 1-2)

  However, in the conventional beverage extraction device, for example, when a frame is attached to a product such as a beverage dispenser with a bolt or the like, when cleaning the cylinder, the upper and lower pistons, etc., the entire frame must be removed. Even if the specialized knowledge is required and the frame is removed, the frame is provided with electric parts such as a motor, so that the frame cannot be washed, and therefore, there is a problem that the maintenance cannot be easily performed.

  This invention is made | formed in view of such a point, and it aims at providing the beverage extraction unit which can perform a maintenance easily, and the beverage extraction apparatus using this beverage extraction unit.

  The beverage extraction unit according to claim 1 is provided with a frame body, an extraction mechanism that is provided in the frame body and extracts a beverage by passing hot water through the extraction raw material, and is provided in the frame body and supplies the extraction raw material to the extraction mechanism. And an extraction raw material supply / discharge mechanism that discharges the extracted raw material from the extraction mechanism, and the extraction mechanism and the extraction raw material supply / discharge mechanism that are provided facing the outside of the frame body and that are supplied with driving force from the outside. And a drive receiving portion for transmitting to the vehicle.

  The beverage extraction unit according to claim 2, wherein the beverage extraction unit according to claim 1 is rotated by the driving force received by the drive receiving portion, and the extraction raw material is discharged from the extraction mechanism by the extraction raw material supply / discharge mechanism. The apparatus includes a cam for performing a beverage extraction operation including an operation of supplying the extraction raw material to the extraction mechanism by the raw material supply / discharge mechanism and an operation of extracting the beverage through hot water through the extraction raw material supplied to the extraction mechanism.

  The beverage extraction unit according to claim 3 is the beverage extraction unit according to claim 1, wherein the beverage extraction unit rotates once for each beverage extraction operation by the driving force received by the drive receiving portion, and during this one rotation, the extraction raw material supply Beverage extraction operation including the operation of discharging the extracted raw material from the extraction mechanism by the discharge mechanism, the operation of supplying the extraction raw material to the extraction mechanism by the extraction raw material supply / discharge mechanism, and the operation of extracting the beverage through hot water through the extraction raw material supplied to the extraction mechanism It is equipped with the cam which performs.

  According to a fourth aspect of the present invention, there is provided a beverage extraction apparatus comprising: the beverage extraction unit according to any one of the first to third aspects; a mounting portion for detachably attaching the beverage extraction unit; and a drive receiving portion of the beverage extraction unit attached to the mounting portion. A drive transmission unit for transmitting a driving force and a main unit having a drive unit for driving the drive transmission unit are provided.

  According to the beverage extraction unit of claim 1, the drive receiving portion that faces the outside of the frame receives supply of driving force from the outside, and transmits the driving force to the extraction mechanism and the extraction raw material supply / discharge mechanism to extract the beverage. For example, when the beverage extraction unit is configured to be detachable with respect to a product or the like, a drive unit such as a motor is provided on the product side, the beverage extraction unit has no drive unit, and the beverage extraction unit is replaced with a product or the like. It can be removed and washed, making maintenance easier.

  According to the beverage extraction unit according to claim 2, in addition to the effect of the beverage extraction unit according to claim 1, the beverage is extracted from the extraction mechanism by the extraction raw material supply / discharge mechanism by the cam rotated by the driving force received by the drive receiving portion. Beverage extraction operation is performed, including the operation of discharging the used raw material, the operation of supplying the extraction raw material to the extraction mechanism by the extraction raw material supply / discharge mechanism, and the operation of extracting the beverage through hot water through the extraction raw material supplied to the extraction mechanism. Since the beverage extraction operation can be performed reliably, and only the cam needs to be rotationally driven, the number of drive units can be reduced and control can be facilitated.

  According to the beverage extraction unit according to claim 3, in addition to the effect of the beverage extraction unit according to claim 1, the beverage is extracted by the cam that rotates once for each beverage extraction operation by the driving force received by the drive receiving portion. Beverages that include the operation of discharging the extracted raw material from the extraction mechanism by the raw material supply / discharge mechanism, the operation of supplying the extraction raw material to the extraction mechanism by the extraction raw material supply / discharge mechanism, and the operation of extracting the beverage through hot water through the extraction raw material supplied to the extraction mechanism Since the extraction operation is performed, a series of beverage extraction operations can be performed reliably, and since only the cam is driven to rotate, the number of drive units can be reduced and control can be facilitated.

  According to the beverage extraction device of claim 4, by mounting the beverage extraction unit according to any one of claims 1 to 3 on the mounting portion of the main body unit, the drive receiving portion of the beverage extraction unit transmits drive transmission of the main body unit. Since the driving force is transmitted from the driving unit via the unit, the beverage extraction unit can be attached to and detached from, for example, a main unit installed in a product, and the beverage extraction unit has no driving unit. It can be washed and can be easily maintained.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  10 and 11 show, for example, a beverage extraction device 11 for extracting espresso coffee. The beverage extraction device 11 includes a main body unit 12 installed on a product side such as a beverage vending machine or a tea machine, and this main body. The beverage extraction unit 13 is detachably attached to the unit 12 from the front surface 12a side as an operation surface.

  The main unit 12 includes a motor frame 16 and a motor frame cover 17 that form an outer shell, and a mounting portion 18 on which a beverage extraction unit 13 is detachably mounted is formed on a side surface of the motor frame 16. As shown in FIGS. 7 and 9, the mounting portion 18 has a pair of rail receivers 19 projecting along the upper and lower edges, and a recess 20 that opens to the front surface 12 a of the main unit 12. Yes.

  As shown in FIGS. 10 and 11, the beverage extraction unit 13 has covers 23 and 24 attached to both side surfaces, and upper and lower rail receivers 19 of the main unit 12 are provided at the upper and lower edges of the cover 23 on one side. On the other hand, a guide rail 25 that is movably engaged in the front-rear direction is protruded, and a convex portion 26 that is movably fitted to the concave portion 20 is projectably provided. Similar guide rails 25 are also provided on the upper and lower edges of the cover 24 on the other side, and these upper and lower guide rails 25 are provided on a mounting member (not shown) disposed to face the mounting portion 18 of the main unit 12. The upper and lower rail supports are engaged so as to be movable in the front-rear direction. Accordingly, the beverage extraction unit 13 is configured to be detachable by moving in the front-rear direction from the front side of the main body unit 12 and the attachment member.

  Further, the main body unit 12 is provided with a lock mechanism 29 that locks the beverage extraction unit 13 in a mounted state. The lock mechanism 29 has a lock knob 30 provided on the front surface 12a of the main unit 12 so as to be rotatable. As shown in FIGS. 8 and 9, the lock knob 30 is rotated in a predetermined locking direction. As a result, the upper lock lever 32 is lowered via the cam 31 and the lower lock lever 33 is raised and protrudes into the recess 20 respectively. Further, as shown in FIGS. 6 and 7, the lock knob 30 is moved in the locking direction. On the other hand, by rotating in the opposite unlocking direction, the upper lock lever 32 is raised and the lower lock lever 33 is lowered and retracted from the recess 20 via the cam 31.

  As shown in FIG. 10, the beverage extraction unit 13 protrudes into the recess 20 in a state where the beverage extraction unit 13 is mounted at a predetermined mounting position of the mounting portion 18 of the main body unit 12 on the upper and lower portions of the convex portion 26 of the beverage extraction unit 13. A lock groove 34 that allows the upper lock lever 32 and the lower lock lever 33 to be engaged and disengaged is formed.

  Further, as shown in FIG. 6 to FIG. 9, at the back side position in the mounting direction in which the beverage extraction unit 13 of the mounting unit 18 of the main body unit 12 is mounted, it is connected to the mounted beverage extraction unit 13 side and rotationally driven. A motor gear 37 serving as a drive transmission unit for transmitting force is disposed, and the motor gear 37 is rotationally driven in one direction by a motor 38 serving as a drive unit mounted in the motor frame 16.

  At the upper position of the motor gear 37, a connection joint 39 is disposed as a hot water supply unit that is connected to the attached beverage extraction unit 13 side and supplies hot water of a predetermined pressure. The connection joint 39 is connected to a hot water supply device (not shown) installed on the product side and supplying hot water of a predetermined pressure via a hose (not shown).

  In the main unit 12, cam position detecting means 42 for detecting the operation position of the beverage extraction unit 13 (the rotational positions of the cam gears 55 and 56 of the beverage extraction unit 13) is disposed. The cam position detection means 42 includes a plurality of position detection switches 43 as cam position detection units, and a plurality of switch operation pins 44 that operate the position detection switches 43. Each switch actuating pin 44 is arranged with one end facing the recess 20, and an actuating plate 45 for operating the position detection switch 43 is attached to the other end, and is biased toward the recess 20 by a spring (not shown). . Then, for example, the position detection switch 43 is turned on in a state where the switch operating pin 44 is moved to the concave portion 20 side by the biasing of the spring, and the switch operating pin 44 resists the biasing of the spring, that is, the beverage side The position detection switch 43 is configured to be turned off by being pushed from the extraction unit 13 side.

  1 to 5 and 12 to 15 show the structure of the beverage extraction unit 13. FIG. The beverage extraction unit 13 includes a frame body 54 having a pair of frames 51, 52 and a plurality of connecting members 53 that connect the frames 51, 52, and covers the outer sides of the frames 51, 52 of the frame body 54. 23 and 24 are attached respectively.

  Cam gears 55 and 56 as a pair of cams are arranged outside the pair of frames 51 and 52, and between the pair of cam gears 55 and 56 and between the pair of frames 51 and 52, extraction is performed. A mechanism 57, an extraction raw material supply / discharge mechanism 58, and the like are provided.

  The cam gears 55 and 56 have a disc shape in which gear portions 55a and 56a are formed at the peripheral portions, and are rotatably supported on the frames 51 and 52 by the support shaft 60, respectively. Each of the cam gears 55 and 56 is engaged with a drive gear 62 that is connected to a drive shaft 61 that passes through the frames 51 and 52 so as to be integrally rotatable, and the pair of cam gears 55 and 56 are integrally rotated. When the beverage extraction unit 13 is attached to the attachment portion 18 of the main unit 12, one drive gear 62 as a drive receiving portion is engaged with the motor gear 37, and the rotational driving force from the motor 38 is transmitted to the cam gears 55 and 56. .

  On the inner surface of the cam gears 55, 56 facing the extraction mechanism 57 and the extraction material supply / discharge mechanism 58, a part of the extraction mechanism 57 and a groove-shaped first cam portion 63 for controlling the operation of the extraction material supply / discharge mechanism 58 are formed. On the outer surface, a groove-like second cam portion 64 for controlling the operation of another part of the extraction mechanism 57 is formed. Then, by making one rotation from the initial position of the cam gears 55 and 56, a series of beverage extraction operations by the extraction mechanism 57 and the extraction raw material supply / discharge mechanism 58 are performed.

  On the outer surface side of one cam gear 55, on one cover 23, when the beverage extraction unit 13 is mounted on the mounting portion 18 of the main unit 12, a plurality of switch operation pins 44 are opposed to each other so that they can be pushed. Position detection pins 65 as position detection members are provided, and each position detection pin 65 is biased toward one cam gear 55 by a spring (not shown). A plurality of position detection recesses 66 are formed on the outer surface of one cam gear 55 to enable the position detection pins 65 to advance and retract. When the cam gears 55 and 56 are in the initial state or while the cam gears 55 and 56 are rotating, the position detection pins 65 protrude from the cover 23 when the position detection pins 65 enter the position detection recesses 66. Accordingly, each switch operating pin 44 is not pushed, the position detecting switch 43 is turned on, and each position detecting recess 66 is removed by rotation of the cam gears 55 and 56, and each position detecting pin 65 is moved on the surface of the cam gear 55. At the rotational position to be pushed, each position detection pin 65 protrudes from the cover 23 and pushes the switch operation pin 44 to turn off the position detection switch 43.

  Further, the extraction mechanism 57 includes a cylindrical cylinder 69 that moves in the vertical direction, an upper piston 70 that moves in the vertical direction with respect to the cylinder 69, and a lower piston 71 that is positioned in the cylinder 69. FIG. In the initial state shown in FIG. 3, the upper surface of the lower piston 71 is located between the upper piston 70 and the cylinder 69 separated from each other and the upper surface of the lowered cylinder 69 is flush with the upper surface of the lower piston 71. An extraction raw material receiving / discharging unit 72 is formed, and an extraction unit 73 is formed in the cylinder 69 by raising the cylinder 69 and lowering the upper piston 70 during the beverage extraction operation shown in FIGS. 14 and 15.

  On both sides of the cylinder 69, a slide portion 74 that engages with the frames 51, 52 on both sides so as to be slidable in the vertical direction, and the grooves of the first cam portions 63 of the cam gears 55, 56 through the frames 51, 52 are provided. A cam roller 75 engaged therewith is rotatably provided. A guide pedestal 76 is formed on the upper surface of the cylinder 69, and an extracted raw material receiving surface 77 for receiving the extracted raw material is formed on the upper surface of one end of the guide pedestal 76. A discharge chute portion 78 is formed so as to incline downward so as to lead to.

  The upper piston 70 is attached to the lower part of the piston support 79. The piston support 79 is attached to the piston levers 80 on both sides, and the piston levers 80 on both sides pass through the frames 51 and 52 and are slidable in the vertical direction. ing. Cam rollers 81 that engage in grooves in the second cam portions 64 of the cam gears 55 and 56 are rotatably attached to the tips of the piston levers 80 on both sides. An inflow hole 82 through which hot water to be supplied flows is formed inside the upper piston 70, and a filter 83 through which hot water sent through the inflow hole 82 passes is attached to the lower part of the upper piston 70, A hose joint 84 communicating with the inflow hole 82 is attached. One end of a hose 85 is attached to the hose joint 84, and the other end of the hose 85 is connected to a connection joint 86 as a connection portion attached to one frame 51. A hot water supply path 87 for supplying hot water to the extraction unit 73 is configured by the connection joint 86, the hose 85, the hose joint 84, the inflow hole 82 of the upper piston 70, and the like.

  The lower piston 71 is fixed to the frames 51 and 52 on both sides. A filter 88 for filtering the extract is attached to the upper surface of the lower piston 71, and an outflow hole 89 is formed in the lower piston 71 for flowing out the extract filtered by the filter downward. An adjustment valve 90 for adjusting the flow rate of the extract is provided.

  Further, the extracted raw material supply / discharge mechanism 58 has a horizontal direction corresponding to the direction connecting the extracted raw material receiving surface 77 side of one end of the guide base portion 76 and the discharge chute portion 78 of the other end to the guide base portion 76 of the cylinder 69. The slide member 93 is slidably attached to the slide member 93. A holder portion 94 is formed on one end side of the slide member 93 so as to be slidable on the upper surface of the guide base portion 76, and a pair of arcuate holder bodies 95 are formed on both sides of the holder portion 94. They are attached to each other so that they can be opened and closed. When the pair of holder bodies 95 are closed, the pair of holder bodies 95 and the holder portion 94 form a cylindrical extraction raw material receiving portion 96. The inner diameter of the extraction raw material receiving portion 96 is substantially the same as the inner diameter of the cylinder 69. The same upper piston 70 can be inserted. The pair of holder bodies 95 are urged in a closing direction by an urging means such as a spring (not shown). Then, on the extracted raw material receiving surface 77 of the guide base 76 and the inside of the holder portion 94 and the pair of holder bodies 95 receives the extracted raw material A1, and the slide member 93 moves to move the extracted raw material A1 to the extracted raw material receiving / discharging unit 72. The supply unit 97 is configured to supply, and the outer surfaces of the pair of holder bodies 95 are configured as a discharge unit 98 that pushes and extracts the extracted raw material A2 from the extracted raw material receiving / discharge unit 72 toward the discharge chute unit 78. The extraction raw material A1 is, for example, coffee powder obtained by grinding coffee beans.

  Long side guide grooves 99 are formed along the vertical direction on both side surfaces on one end side of the slide member 93, and an engagement pin 101 at one end of each of the pair of levers 100 is movably engaged with the guide grooves 99 in the vertical direction. Are combined. The other end of each lever 100 is pivotally supported on the frames 51 and 52 by the support shaft 102, and the outer surfaces near the one end side of each lever 100 pass through the frames 51 and 52 and the first of the cam gears 55 and 56. Cam rollers 103 respectively engaged with the cam portions 63 are rotatably attached.

  An extraction material chute 104 is disposed above the extraction material receiving surface 77 of the guide table 76 at one side of the upper piston 70. The extracted raw material chute 104 includes a cylindrical upper extracted raw material chute 105 attached to the frames 51 and 52 on both sides, and a cylindrical lower side attached to the upper extracted raw material chute 105 so as to be slidable in the vertical direction. And an extraction raw material chute 106. Note that a predetermined amount of the extracted raw material is input and supplied to the extracted raw material chute 104 for each beverage extraction operation from an unillustrated extracted raw material supply device installed on the product side.

  Further, as shown in FIGS. 1 and 2, the cam gears 55 and 56 are rotated in the vicinity of the drive gear 62 of one frame 51 of the beverage extraction unit 13 when the beverage extraction unit 13 is removed from the main unit 12. A lock mechanism 109 is provided for restricting the movement and for releasing the rotation restriction of the cam gears 55 and 56 when the beverage extraction unit 13 is mounted on the main unit 12. The lock mechanism 109 has a lock member 110 that is attached to the frame 51 so as to be movable in the front-rear direction corresponding to the attaching / detaching direction of the beverage extraction unit 13. The lock member 110 moves backward on the lock member 110. When this occurs, a lock portion 111 that engages with the drive gear 62 and restricts rotation is provided, and the lock portion 111 is urged rearward to engage with the drive gear 62 by a spring as an urging means (not shown). . The lock member 110 is provided with a release portion 112 so as to face the rear surface of the beverage extraction unit 13, and the main body unit 12 abuts on the release portion 112 when the beverage extraction unit 13 is mounted, and a release pin 113 that releases the lock. Is provided.

  Next, the operation of the present embodiment will be described.

  The main unit 12 is installed in the product, and the beverage extraction unit 13 is mounted on the mounting portion 18 of the main unit 12.

  When the beverage extraction unit 13 is mounted, one of the drive gears 62 is engaged with the motor gear 37 of the main unit 12 so that driving force can be transmitted, and the release portion 112 of the lock member 110 is connected to the release pin 113 of the main unit 12. When pushed, the drive gear 62 is unlocked and the cam gears 55 and 56 are allowed to rotate, and the connecting joint 86 is connected to the connecting joint 39 of the main unit 12 so that hot water can be supplied. The pin 65 is disposed opposite to each switch operating pin 44 of the main unit 12 so that the rotational position of the cam gears 55 and 56 can be detected.

  A cup placement portion 116 is formed below the lower piston 71 of the beverage extraction unit 13 in which a cup C for receiving an extracted beverage is placed. A discharge chute portion is provided at a side position across a partition plate (not shown) of the cup placement portion 116. A collection unit 117 that receives and collects the extracted raw material A2 discharged through 78 is detachably disposed.

  First, as shown in FIG. 12, in the initial state of the beverage extraction unit 13, that is, in the state where the rotational positions of the cam gears 55 and 56 are at the initial position, each position detection pin 65 is placed in the position detection recess 66 of one cam gear 55. Each position detecting pin 65 does not push each switch operating pin 44 of the main body unit 12 and each position detecting switch 43 is turned on to detect that it is in the initial position.

  In the initial state of the beverage extraction unit 13, that is, in the state where the rotational positions of the cam gears 55 and 56 are in the initial position, the cylinder 69 is lowered, and the upper surface of the cylinder 69 is positioned flush with the upper surface of the lower piston 71. The piston 70 ascends, and an extraction material receiving / discharging part 72 is formed on the lower piston 71 below the upper piston 70. The slide member 93 of the extraction raw material supply / discharge mechanism 58 is moved in the direction of one end of the guide base portion 76 provided with the extraction raw material receiving surface 77 of the cylinder 69, and a pair of holders on the extraction raw material reception surface 77 of the slide member 93 The body 95 is closed to form a cylindrical extraction raw material receiving portion 96. Accordingly, the supply portion 97 formed on the extracted raw material receiving surface 77 and inside the extracted raw material receiving portion 96 is disposed below the extracted raw material chute body 104, and is a discharge portion constituted by the outer surfaces of the pair of holder bodies 95 98 is opposed to the extracted raw material receiving and discharging unit 72. Further, the extracted raw material A2 at the previous beverage extraction operation is arranged in the extracted raw material receiving / discharging unit 72.

  At the start of the beverage extraction operation, first, an extraction raw material A1 such as coffee powder is supplied to the extraction raw material chute 104 from an extraction raw material supply device (not shown) on the product side, and the extraction raw material receiving surface 77 is passed through this extraction raw material chute 104. It is accommodated in the supply part 97 above and inside the extraction raw material receiving part 96.

  Thereafter, the motor 38 of the main unit 12 is driven, and the driving force from the motor 38 is transmitted to the cam gears 55 and 56 through the motor gear 37 and the drive gear 62 of the beverage extraction unit 13, and accompanying the beverage extraction operation of the cam gears 55 and 56 One rotation is started. When the rotation of the cam gears 55 and 56 starts, the position detection recess 66 of one cam gear 55 is disengaged from each position detection pin 65, and each position detection pin 65 is pushed on the outer surface of one cam gear 55. Then, each switch actuating pin 44 of the main unit 12 is pressed to detect that each position detection switch 43 is turned off, for example, from the initial position.

  In the initial rotation of the cam gears 55 and 56, as shown in FIG. 13, the slide member 93 is connected to the other end of the guide base portion 76 via the cam roller 103 and the lever 100 that engage with the first cam portion 63 of the cam gear 55 and 56. The extracted raw material A2 located in the extracted raw material receiving and discharging unit 72 is pushed by the discharge unit 98 and discharged to the lower recovery unit 117 through the discharge chute 78 and the extracted raw material A1 in the supply unit 97 is extracted. Move to the receiving and discharging unit 72. The slide member 93 moves until the center of the extraction raw material receiving portion 96 coincides with the center of the cylinder 69.

  Subsequently, in the middle period of rotation of the cam gears 55 and 56, as shown in FIG. 14, the cylinder 69 is lifted via the cam roller 75 engaged with the first cam portion 63 of the cam gears 55 and 56, and the upper side of the cylinder 69 is moved upward. The piston 70 is engaged, and a chamber (extraction chamber) of the extraction unit 73 that stores the extraction raw material A1 is formed between the cylinder 69, the upper piston 70, and the lower piston 71. When the cylinder 69 is raised, the slide member 93 is also raised integrally, and the lower extracted raw material chute 106 is pushed up by the sliding member 93.

  As shown in FIG. 15, the upper piston 70 is lowered via the cam roller 81, the piston lever 80, and the piston support 79 that engage with the second cam portion 64 of the cam gears 55, 56, and between the lower piston 71. The extracted raw material A1 is compressed.

  At the timing of compressing the extracted raw material A1, one position detecting pin 65 enters one position detecting recess 66 of the cam gear 55, and one switch operating pin 44 of the main unit 12 is moved by one position detecting pin 65. Only one position detection switch 43 is turned on, for example, and it is detected that it is a hot water supply twing position. Based on this detection, hot water of a predetermined pressure is extracted from the hot water supply device on the product side through the connection joint 39 of the main body unit 12, the connection joint 86 of the beverage extraction unit 13, the hose 85, the hose joint 84, and the inflow hole 82 of the upper piston 70. Supplied to the unit 73. Extracted liquid, that is, a beverage extracted while passing hot water of a predetermined pressure through the extracted raw material A1, is filtered by the filter 88 of the lower piston 71 and flows downward through the outlet hole 89, and poured into the cup C. Can be removed. At this time, depending on the diameter of the control valve 90, the extraction time and pressure can be changed to adjust the taste and aroma of the beverage.

  The slide member 93 starts moving so as to return toward the one end of the guide base 76, and the pair of holder bodies 95 abut against the upper piston 70, but the pair of holder bodies 95 resists the spring bias. By opening, the movement of the slide member 93 is continued without any trouble.

  Subsequently, in the later stage of rotation of the cam gears 55 and 56, the cylinder 69 is lowered and returned to the initial position via the cam roller 75 engaged with the first cam portion 63 of the cam gears 55 and 56, and the upper piston 70 is raised. It returns to the initial position and returns to the initial state shown in FIG.

  When the cam gears 55 and 56 return to the initial positions, the position detection pins 65 enter the position detection recesses 66 of the cam gear 55, and the position detection pins 65 do not press the switch operation pins 44 of the main unit 12, The position detection switch 43 is turned on, for example, to detect that it has returned to the initial position. Based on this detection, the motor 38 is stopped and one extraction operation is completed.

  In this way, the cam gears 55 and 56 rotate once in one direction for each beverage extraction operation, and at the initial stage of rotation, the discharge portion 98 of the extraction raw material supply / discharge mechanism 58 causes the extraction raw material reception / discharge portion 72 of the extraction mechanism 57 to The extracted raw material A2 is discharged and the supply unit 97 supplies the extracted raw material A1 to the extraction raw material receiving / discharging unit 72 of the extraction mechanism 57, and the extraction raw material A1 received by the extracted raw material receiving / discharging unit 72 is extracted in the middle of the rotation. In the extraction part 73, the beverage is extracted through hot water, and the extraction raw material supply / discharge mechanism 58 and the extraction mechanism 57 are returned to the initial state in the latter period of rotation, so that a series of beverage extraction operations can be performed reliably. Since the cam gears 55 and 56 need only be rotationally driven, the number of drive units such as motors can be reduced and control can be facilitated.

  In the initial state, the upper surface of the lower piston 71 is located between the upper piston 70 and the cylinder 69 that are separated from each other and the upper surface of the lowered cylinder 69 is flush with the upper surface of the lower piston 71. The extraction raw material receiving / discharging part 72 can be formed, and during the beverage extraction operation, the extraction part 73 can be formed in the cylinder 69 by the rising of the cylinder 69 and the lowering of the upper piston 70, and the extraction mechanism 57 can slide on the cylinder 69. Since the supply part 97 and the discharge part 98 of the extraction raw material supply / discharge mechanism 58 that moves relative to the extraction raw material receiving / discharge part 72 are moved vertically together with the cylinder 69, for example, when the cylinder 69 is raised during the beverage extraction operation process, for example, a cam gear It is not necessary to reversely rotate 55 and 56 to retract the supply unit 97 and the discharge unit 98, and a series of beverage extraction operations can be reliably performed by continuing rotation in one direction of the cam gears 55 and 56.

  Further, different operations of the extraction mechanism 57 and the extraction raw material supply / discharge mechanism 58 can be reliably controlled by the first cam portion 63 and the second cam portion 64 provided on both surfaces of one cam gear 55, 56.

  In addition, since the extraction mechanism 57 and the extracted raw material supply / discharge mechanism 58 are disposed between the pair of cam gears 55, 56 that rotate in synchronization, the pair of cam gears 55, 56 ensures the extraction mechanism 57 and the extracted raw material supply / discharge mechanism 58. And can be made compact.

  Next, attachment / detachment of the beverage extraction unit 13 with respect to the main body unit 12 will be described.

  The beverage extraction unit 13 is attached and detached in the initial state of the beverage extraction unit 13, that is, the rotational positions of the cam gears 55 and 56 are in the initial position, and each position detection pin 65 is placed in the position detection recess 66 of one cam gear 55. It is possible in the state that the position detection pin 65 has entered and does not protrude toward the main unit 12 side. The rotational positions of the cam gears 55 and 56 are always stopped at the initial position, and even when the beverage extraction unit 13 is removed, the rotational positions of the cam gears 55 and 56 are locked at the initial position by the lock mechanism 109, so that the beverage is extracted. Unit 13 can be securely attached and detached.

  First, when the removed beverage extraction unit 13 is mounted on the main body unit 12, the rear side of one cover 23 of the beverage extraction unit 13 is aligned with the front side of the mounting portion 18 of the main body unit 12 to extract the beverage By pushing the unit 13 rearward, the upper and lower guide rails 25 of the cover 23 engage with the upper and lower rail receivers 19 of the mounting portion 18, and the beverage extraction unit 13 is guided to a predetermined mounting position of the mounting portion 18. At this time, the upper and lower guide rails 25 of the cover 24 on the other side of the beverage extraction unit 13 engage with a rail receiver of an attachment member (not shown) installed on the product side, and the other cover 24 side is also supported.

  By mounting the beverage extraction unit 13 to the predetermined mounting position of the mounting portion 18, one of the drive gears 62 is engaged with the motor gear 37 of the main body unit 12, and the driving force can be transmitted. 112 is pushed by the release pin 113 of the main unit 12 to unlock the drive gear 62 and the cam gears 55 and 56 are allowed to rotate, and the connecting joint 86 is connected to the connecting joint 39 of the main unit 12 to The position detection pins 65 are arranged to face the switch operation pins 44 of the main body unit 12 so that the rotational positions of the cam gears 55 and 56 can be detected.

  After the beverage extraction unit 13 is mounted at a predetermined mounting position of the mounting portion 18, as shown in FIGS. 8 and 9, the lock knob 30 is rotated in the locking direction, whereby the upper lock lever 32 and the lower lock lever 33 respectively engages with the upper and lower lock grooves 34 of the convex portion 26 protruding from the cover 23 of the beverage extraction unit 13, and the beverage extraction unit 13 is locked to the main unit 12.

  When the beverage extraction unit 13 is removed from the main unit 12, the upper lock lever 32 and the lower lock lever 33 are operated by rotating the lock knob 30 in the unlocking direction as shown in FIGS. Is released from the upper and lower lock grooves 34 of the projection 26 protruding from the cover 23 of the beverage extraction unit 13, and the locking of the beverage extraction unit 13 to the main body unit 12 is released.

  By moving the beverage extraction unit 13 forward, one drive gear 62 is separated from the motor gear 37 of the main unit 12, and the connection joint 86 is separated from the connection joint 39 of the main unit 12. Further, since the release portion 112 of the lock member 110 is not pushed by the release pin 113 of the main body unit 12, the lock portion 111 of the lock member 110 engages and locks with the drive gear 62, and the cam gears 55 and 56 are moved from the initial position. Regulates turning.

  As described above, the beverage extraction unit 13 and the main body unit 12 having the mounting portion 18 that is detachable from the beverage extraction unit 13 are provided. By mounting the beverage extraction unit 13 on the mounting portion 18 of the main body unit 12, the beverage The drive gear 62 that transmits the rotational driving force to the cam gears 55 and 56 of the extraction unit 13 can be automatically connected to the motor gear 37 that transmits the rotational driving force from the motor 38 of the main unit 12, and the cam gears 55 and 56 are connected by the motor 38. Since it can be rotated, the beverage extraction unit 13 can be easily attached to and detached from the main unit 12 installed in the product, and electric parts such as a motor 38 are provided in the main unit 12, and the beverage extraction unit 13 includes a motor 38, etc. The beverage extraction unit 13 can be washed in a circle and maintenance can be facilitated.

  In addition, since the cam position detection switch 43 for detecting the positions of the cam gears 55 and 56 is provided in the main body unit 12, the beverage extraction unit 13 has no electrical parts including the cam position detection switch 43 and the like. It can be washed and can be easily maintained.

  In addition, by attaching the beverage extraction unit 13 to the mounting portion 18 of the main unit 12, the connection joint 86 of the beverage extraction unit 13 can be automatically connected to the connection joint 39 of the main unit 12, and a connection for supplying hot water. Thus, hot water can be supplied from the main unit 12 to the beverage extraction unit 13.

  For example, when the interval of the extraction operation is longer than a predetermined time, the cam gears 55 and 56 are rotated once without supplying the extracted raw material A1 and hot water, and the extracted raw material A2 is discharged from the extracted raw material receiving and discharging unit 72. May be.

  Further, the beverage to be extracted is not limited to coffee, but can be similarly applied to beverages using tea leaves.

It is a perspective view of the state where one cover of the beverage extraction unit showing one embodiment of the present invention was removed. It is the perspective view which attached one cover of the drink extraction unit same as the above to the main body unit. It is a one part perspective view of a drink extraction unit same as the above. It is a perspective view of the gear train comprised by a drink extraction unit same as the above and a main-body unit. It is a one part perspective view of a drink extraction unit same as the above. It is a perspective view which shows the internal structure in the lock release state of a main body unit same as the above. It is a perspective view of the mounting part in the lock release state of a main body unit same as the above. It is a perspective view which shows the internal structure in the locked state of a main body unit same as the above. It is a perspective view of the mounting part in the locked state of a main body unit same as the above. It is a perspective view of the beverage extraction apparatus which shows the separation state of a beverage extraction unit same as the above, and a main-body unit. It is a perspective view of the beverage extraction apparatus which shows the combined state of a drink extraction unit same as the above, and a main-body unit. It is sectional drawing in the initial state of a drink extraction unit same as the above. It is sectional drawing which shows the drink extraction operation | movement of a drink extraction unit same as the above. It is sectional drawing which shows the drink extraction operation | movement following FIG. 13 of a drink extraction unit same as the above. It is sectional drawing which shows the drink extraction operation | movement following FIG. 14 of a drink extraction unit same as the above.

Explanation of symbols

11 Beverage extractor
12 Main unit
13 Beverage extraction unit
18 Mounting part
37 Motor gear as drive transmission
38 Motor as drive unit
54 Frame body
55, 56 Gum gear as cam
57 Extraction mechanism
58 Extracted material supply / discharge mechanism
62 Drive gear as drive receiver
A1 Extract raw material
A2 Extracted raw material

Claims (4)

Frame body,
An extraction mechanism that is provided in the frame body and extracts a beverage through hot water as an extraction raw material;
An extraction raw material supply / discharge mechanism that is provided in the frame body and supplies the extraction raw material to the extraction mechanism and discharges the extracted raw material from the extraction mechanism;
A beverage extraction unit, comprising: a drive receiving portion that is provided facing the outside of the frame body and receives a supply of driving force from the outside and transmits the driving force to the extraction mechanism and the extraction raw material supply / discharge mechanism. Rotated by the driving force received by the drive receiving portion, the extracted raw material supply / discharge mechanism discharges the extracted raw material from the extraction mechanism, the extracted raw material supply / discharge mechanism supplies the extraction raw material to the extraction mechanism, and is supplied to the extraction mechanism The beverage extraction unit according to claim 1, further comprising a cam for performing a beverage extraction operation including an operation of extracting the beverage through hot water through the extraction raw material. The driving force received by the drive receiving portion makes one rotation for each beverage extraction operation, and during this one rotation, the extracted raw material supply / discharge mechanism discharges the extracted raw material from the extraction mechanism, and the extracted raw material supply / discharge mechanism The beverage according to claim 1, further comprising a cam for performing an operation for supplying the extraction raw material to the extraction mechanism and an operation for extracting the beverage through the hot water through the extraction raw material supplied to the extraction mechanism. Extraction unit. A beverage extraction unit according to any one of claims 1 to 3,
A mounting portion for detachably attaching the beverage extraction unit, a drive transmission portion for transmitting a driving force to a drive receiving portion of the beverage extraction unit attached to the attachment portion, and a main body unit having a drive portion for driving the drive transmission portion. A beverage extraction device comprising the beverage extraction device.

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