JP2010069188A - Beverage supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beverage supply device which does not require to install a piping only for drainage, can easily drain the water in a water storage tank, and can supply a sanitary beverage. <P>SOLUTION: The beverage supply device includes an extractor unit 2 for preparing the beverage by extraction and delivering extraction lees, a hot-water supply unit 4 for supplying water from a hot-water tank 52 to the extractor unit 2, a lee bucket 93 for storing the delivered lees, and a control device for controlling the hot-water supply unit 4 and the extractor unit 2. The hot-water supply unit 4 supplies a prescribed amount of water necessary for preparing the beverage during a beverage preparation mode, and supplies all water in the hot-water tank 52 during a tank drainage mode. The extractor unit 2 is constituted to permit the leakage of supplied water, prepares the beverage using the water supplied during the beverage preparation mode, and leaks out the water supplied during the tank drainage mode. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a beverage supply device that is applied to a coffee server, a tea server, or the like, and that supplies coffee or tea-based beverages cooked by extraction inside the device body.

  As a conventional beverage supply device, for example, a tea machine disclosed in Patent Document 1 is known. This tea supply machine supplies tea cooked by extraction using tea leaves and hot water, a tea bowl, and a tea leaf storage tank and a hot water storage tank for supplying tea leaves and hot water to the tea bowl, respectively. It is equipped with a bucket for storing tea leaves discharged from tea bowls. A hot water supply pipe is connected to the hot water storage tank, and at the time of tea supply, a predetermined amount of hot water is supplied to the tea bowl through the hot water supply pipe. In addition, a drainage hose having a drain valve at the front end (downstream end) is also connected to the hot water storage tank, and when draining all the hot water in the hot water storage tank, the drain valve is opened and placed in a bucket. As a result, the hot water in the hot water storage tank is discharged into the basket bucket through the drainage hose.

  As described above, in this tea dispenser, the hot water in the hot water storage tank is replaced by discharging all the hot water in the hot water storage tank through the drainage hose. However, the drainage hose described above is a dedicated drainage pipe that is used only when draining hot water in the hot water storage tank, and the cost of manufacturing a tea machine increases due to the provision of such drainage hose and drain valve. . Further, since the interior of the drainage hose and the interior of the hot water storage tank are always in communication, the hot water that has flowed into the drainage hose from the hot water storage tank remains in the drainage hose unless the hot water in the hot water storage tank is discharged. For this reason, if new water is replenished to the hot water storage tank without replacing the hot water, the water and old hot water in the drainage hose may be mixed, which is not preferable for hygiene purposes.

  The present invention has been made to solve the above-described problems, and can easily drain water in a water storage tank and provide a sanitary beverage without providing a dedicated drainage pipe. It aims at providing the drink supply apparatus which can be performed.

JP-A-11-128080

  In order to achieve the above object, the invention according to claim 1 is a beverage supply device for supplying a beverage cooked inside the device main body, provided inside the device main body, using raw materials and water, A beverage extractor that cooks by extracting beverages and dispenses the extraction culm that is the raw material after extraction, and a water storage tank that stores water, and supplies water to the beverage extractor from the storage tank An upper surface is opened, and is disposed below the beverage extractor, and is detachably attached to the apparatus main body and contains a brewed bucket that contains the dispensed brewer, and a beverage cooking mode for cooking the beverage, And a tank draining mode for discharging water in the water storage tank, and a control means for controlling the water supply means and the beverage extractor, wherein the water supply means is a predetermined amount necessary for cooking the beverage in the beverage cooking mode. Of water In addition, all the water in the water storage tank is supplied during the tank drain mode, and the beverage extractor is configured to allow leakage of the supplied water, and the beverage supplied using the water supplied during the beverage cooking mode is used. And water supplied during the tank drain mode is leaked.

  According to this structure, the beverage extractor provided in the inside of the apparatus main body cooks by extracting a drink using a raw material and water, and pays out the extraction mash which is the raw material after extraction. The water supplied to the beverage extractor is supplied from the water storage tank by water supply means having the water storage tank. Also, below the beverage extractor, a top bucket is opened, and a top bucket that accommodates the extracted top is disposed, and this top bucket is detachably attached to the apparatus main body. Therefore, when discarding the soot collected in the soot bucket, it is possible to simply discard the soot by removing the soot bucket from the apparatus main body.

  The water supply means and the beverage extractor are controlled by the control means. In the beverage cooking mode, the water supply means supplies a predetermined amount of water necessary for cooking the beverage to the beverage extractor, and the beverage extractor Cook the beverage using the supplied water. On the other hand, in the tank drain mode, the water supply means supplies all the water in the water storage tank to the beverage extractor, and the beverage extractor leaks the supplied water. Thereby, the water leaked from the beverage extractor is accommodated in the basket bucket. Thus, in the above beverage supply device, when all the water in the water storage tank is discharged, the water in the water storage tank is supplied to the beverage extractor as in the case of cooking the beverage. In addition, the water in the water storage tank can be easily discharged. In addition, when replenishing new water to the storage tank after drainage, unlike the conventional case, old water is not mixed with the replenished water, thereby providing a sanitary beverage.

  The invention according to claim 2 is the beverage supply device according to claim 1, wherein the basket bucket has a predetermined volume, and further includes an operation unit operated to execute the tank drainage mode, The water supply means supplies water in an amount smaller than a predetermined volume of the straw bucket by one operation of the operation unit.

  According to this configuration, the tank drainage mode is executed by operating the operation unit, and the water discharged from the water storage tank is stored in the basket bucket via the beverage extractor. In this case, the water discharged from the water storage tank by a single operation of the operation unit is less than the volume of the dredging bucket, so that the water contained in the dredging bucket is surely prevented from overflowing from the dredging bucket. Can do. Moreover, when all the water in the water storage tank is not discharged by one operation of the operation unit, all the water can be easily discharged by operating the operation unit a plurality of times.

  According to a third aspect of the present invention, in the beverage supply apparatus according to the first or second aspect of the present invention, the drainage hole for discharging the water discharged from the beverage extractor and contained in the basket bucket to the outside in the basket bucket Is provided.

  According to this configuration, since the drainage hole is provided in the bucket, the water contained in the bucket can be directly discharged to the outside through the drainage hole. Thereby, in the discharge process of the water in a water storage tank, the drainage process can be performed continuously, without removing a basket bucket from an apparatus main body on the way.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a coffee server to which a beverage supply device according to an embodiment of the present invention is applied. The coffee server 1 is installed in an office or the like, cooks by extracting one cup of coffee at a time by a push button operation by a user, and supplies it to the cup C.

  2A and 2B respectively show a front view of the coffee server 1 and a right side view with a right panel 5B described later removed, and FIG. 3 is an exploded view of the coffee server 1 for each functional unit. As shown. As shown in FIGS. 1 to 3, the coffee server 1 includes an extractor unit 2 (beverage extractor) for extracting coffee and a raw material supply for supplying powdery coffee beans as a raw material to the extractor unit 2. A unit 3 and a hot water supply unit 4 (water supply means) for supplying hot water (water) to the extractor unit 2 are provided. These functional units 2, 3 and 4 are assembled via frames 12, 31 and 51, which will be described later, which support the respective functional units 2, 3 and 4, and their periphery is configured by a plurality of panels which will be described later. The outer case 5 is covered. A front upper unit 6 having an operation function for operating the coffee server 1 and a discharge / supply function for discharging and supplying coffee is provided in the upper half of the front portion of the coffee server 1. . The front upper unit 6 also has a frame 77 which will be described later, like the functional units 2, 3 and 4, and is assembled to the raw material supply unit 3 through this. Furthermore, the lower half of the front part of the coffee server 1 has a cup setting function for setting the cup C in a state where it is placed, and an extraction mash storage function for storing the extracted mash that is the raw material after extraction. A front lower unit 7 is provided.

  Although not shown, the coffee server 1 includes a control device configured by a microcomputer that controls the extractor unit 2, the raw material supply unit 3, and the hot water supply unit 4. Located at the bottom.

  As shown in FIGS. 2 and 3, the extractor unit 2 is attached to a frame 12 erected on a base 11 having a substantially rectangular planar shape. FIG. 4A shows the base 11 and the frame 12 in an enlarged manner, and FIG. 4B shows the extractor unit 2. As shown in FIG. 2A, both the base 11 and the frame 12 are configured by bending a metal plate having a predetermined shape. The base 11 has right and left side edges and rear edge portions bent upward at a right angle. In addition, at a predetermined position on the bottom surface of the base 11, four leg portions 11a (see FIG. 2B) that slightly protrude downward are provided. Further, the base 11 is formed with an engaging convex portion 11 b extending in the left-right direction and slightly protruding upward at a predetermined position in front of the frame 12.

  On the other hand, the frame 12 has a frame body portion 13 having a rectangular front shape and a frame base portion 14 that is bent at a right angle at the lower end portion of the frame body portion 13 and extends rearward. Is formed. The frame main body 13 is bent at right and left sides and the upper edge at right angles to the rear, while the frame base 14 is bent at the front and rear ends as appropriate so that they are in contact with the base 11. The central part is arranged so as to be slightly lifted from the base 11. The frame 12 is attached to the base 11 by screwing the lower end of the frame main body 13 from both the left and right sides.

  As shown in FIG. 4B, the extractor unit 2 includes a drip unit 21 for extracting coffee and a drive unit 22 that drives the drip unit 21, and the former 21 is the frame main body 13. The latter 22 is detachably attached to the back surface of the frame main body 13. As shown in FIG. 4A, at a predetermined position of the frame main body portion 13, in order to transmit the power from the four attachment holes 13a for attaching the drip unit 21 and the drive unit 22 to the drip unit 21, An opening 13b that allows the engagement of a drive joint gear 135 (described later) of the drive unit 22 and a driven joint gear 128A (described later) of the drip unit 21 is formed. Further, an upper opening 13c and a center opening 13d are formed in the upper part and the center part of the frame main body part 13 to allow the cylinder head 28 and the scraper 29 described later to move in the front-rear direction, respectively.

  Here, the extractor unit 2 will be briefly described with reference to FIG. The drip unit 21 is composed of a cylinder 23 that is supplied with raw materials and hot water and extracts coffee therein, and a cylinder holder 24 that detachably accommodates the cylinder 23. The cylinder 23 is made of plastic and is formed in a cylindrical shape extending in the vertical direction and having an upper surface and a lower surface opened as shown in FIG. Further, a handle 23 a and two upper and lower guide portions 23 b that are used when the cylinder 23 is attached to and detached from the cylinder holder 24 are provided on the outer peripheral surface of the cylinder 23.

  The cylinder holder 24 has a front surface and an upper surface that are open and is formed in a substantially box shape. As shown in FIG. 2A, a holder cover 25 is attached to the upper surface of the cylinder holder 24 to cover it. The holder cover 25 has a raw material inlet 25 a for feeding raw materials into the cylinder 23, a steam outlet 25 b for discharging steam generated during cooking of the coffee, and hot water supply for supplying hot water to the cylinder 23. A mouth 25c is provided. In the cylinder holder 24, a cylinder catcher 26 that holds the cylinder 23 in a state of being sandwiched from the left and right is provided. Furthermore, a filter block 27 having a filter 27a on the upper surface and a beverage transport tube DT connected to the lower part is provided at the lower part in the cylinder holder 24 so as to be movable up and down. The filter block 27 conveys the coffee extracted in the cylinder 23 to the outside of the drip unit 21 through the beverage conveyance tube DT, and seals the lower surface of the cylinder 23 when the coffee is extracted. After the coffee is extracted and transported, it is separated from the cylinder 23 by descending.

  In addition, a cylinder head 28 connected to the air pump AP via the air transfer tube AT is provided on the upper portion of the cylinder holder 24 so as to be movable in the front-rear direction. The cylinder head 28 opens and closes the upper surface of the cylinder 23 and sends air into the cylinder 23 to press the coffee in the cylinder 23 to the outside. Open and seal the top surface of the cylinder 24 during coffee extraction.

  Further, on the back side of the cylinder holder 24, a scraper 29 is provided for scraping the extracted scum remaining on the filter 27a of the filter block 27 after the coffee is extracted and dispensing it forward. The scraper 29 includes a support 29a having a rectangular frame shape in plan view, and a rubber scraper main body 29b having a front rectangular shape that is attached to the support 29a so as to hang from the front end. The scraper 29 configured as described above is erected on the frame base portion 14 of the frame 12, and includes a scraper support member 30 that supports the scraper 29 from below, and guide rails provided on the left and right side surfaces in the cylinder holder 24 (see FIG. It is possible to move in the front-rear direction between a standby position behind the filter 27a and an extraction rod discharge position in front of the filter 27a. After extracting and transporting the coffee, the filter block 27 is lowered, and then the scraper 29 is moved from the standby position to the extraction pad discharge position, whereby the extraction pad on the filter 27a is scraped off and discharged forward.

  On the other hand, the drive unit 22 is electrically connected to the control device, and drives the filter block 27, the cylinder head 28, and the scraper 29 described above by being controlled by the control device. The detailed description of the drive unit 22 will be described later.

  FIG. 6 shows the raw material supply unit 3. The raw material supply unit 3 is attached to the frame 31 while being supported by the frame 31 from below. The frame 31 is configured by bending a metal plate having a predetermined shape, and the like. The frame main body 32 has a rectangular planar shape, and an attachment portion provided at the upper rear end of the frame main body 32. 33. The frame body portion 32 has a front edge bent downward at a right angle, and left and right edge portions 32a, 32a also bent downward at a right angle, and its side surface is formed in a triangular shape. An opening 32 b is formed in the front portion of the frame main body 32.

  The raw material supply unit 3 has a canister 34 for storing the raw material, and an auger 35 extending in the front-rear direction for feeding the raw material forward is rotatably provided at the bottom of the canister 34. In addition, an auger motor 36 and a gear box 37 attached to the attachment portion 33 of the frame 31 are disposed behind the canister 34, and thereby the auger 35 is rotationally driven in a predetermined direction. The auger motor 36 is electrically connected to the control device and is controlled by the control device. Further, a raw material discharge portion 38 that opens forward and discharges the raw material fed out by the auger 35 to the front is provided at the lower front end of the canister 34. A raw material chute 39 is attached to the raw material discharge part 38, and the raw material chute 39 extends below the frame main body part 32 through the opening 32 b of the frame main body part 32, and the raw material of the extractor unit 2. It is connected to the inlet 25a.

  The canister 34 is provided with a lid 34a that is normally closed and opened when the raw material is replenished. The canister 34 is engaged with an auger 35 and is rotated with its rotation. A stirring gear 34b for stirring the raw material in the canister 34 by rotating is provided.

  The frame 31 that supports the raw material supply unit 3 has a steam discharge unit for discharging steam generated mainly during coffee cooking to the outside of the coffee server 1 itself (hereinafter referred to as “apparatus body” as appropriate). 41 is attached. This steam discharge unit 41 is arranged on the right side of the fan 42 for sending steam from right to left, a filter holder 44 for holding the filter 43, and connected to the filter holder 44. The air intake duct 45 extends below the frame body 32 through the opening 32 b and is connected to the steam outlet 25 b of the extractor unit 2.

  The fan 42 is always operating, whereby the steam generated when the extractor unit 2 cooks coffee and the moisture around the drip unit 21 are sucked through the intake duct 45. The sucked steam or the like passes through the filter 43 and the fan 42 in order, and is discharged to the outside of the apparatus main body through an exhaust port 62 described later of the left panel 5A. Further, when the steam passes through the filter 43, the fine powder of the raw material contained in the steam is collected by the filter 43. Thereby, clean steam is discharged from the apparatus main body.

  FIG. 7 shows the hot water supply unit 4. The hot water supply unit 4 is attached to the hot water supply unit 4 while being supported by the frame 51. The frame 51 is formed in a vertically long box shape by bending a plurality of metal plates having a predetermined shape and assembling them together.

  The hot water supply unit 4 includes a hot water tank 52 (water storage tank) that stores hot water, a hot water pump 54 that sends hot water in the hot water tank 52 to the extractor unit 2 via the hot water supply tube 53, and a halfway of the hot water supply tube 53. Provided with a hot water valve 55 made of an electromagnetic valve. The hot water tank 52 is formed in a cylindrical shape having a predetermined capacity (for example, 4 liters), and includes a heater (not shown) for heating the stored water. Further, the upper surface of the hot water tank 52 is provided with a water inlet 52a that opens upward, and this water inlet 52a is normally closed by a lid 52b that can be freely opened and closed on an upper panel 5C described later. It is opened when water is supplied to the hot water tank 52.

  Both the hot water pump 54 and the hot water valve 55 are attached to the frame 51, and the former 54 is disposed below the hot water tank 52 and the latter 55 is disposed at the upper front of the hot water tank 52. The hot water pump 54 and the hot water valve 55 are electrically connected to the control device, and are controlled by the control device.

  The extractor unit 2, the raw material supply unit 3, and the hot water supply unit 4 configured as described above are assembled by connecting the frames 12, 31, and 51 to each other by screwing or the like. Specifically, as shown in FIG. 2B, the left and right edges 32a of the frame 31 in a state where the frame 31 of the raw material supply unit 3 is placed on the upper side of the frame 12 of the extractor unit 2. , 32a are screwed to the frame 12. A hot water supply unit 4 is disposed behind the extractor unit 2, and the lower end portion of the frame 51 is engaged with the left and right edges of the base 11 and screwed. Further, the frame 31 of the raw material supply unit 3 is screwed to the front part of the frame 51 of the hot water supply unit 4 at the left and right edges of the rear mounting portion 33. As described above, the frames 12, 31 and 51 made of metal plates are connected to each other, whereby a framework in the apparatus main body is configured. The outer case 5 covers the periphery of the extractor unit 2, the raw material supply unit 3, and the hot water supply unit 4 that are assembled together via the frames 12, 31, and 51.

  As shown in FIG. 3, the exterior case 5 includes a plurality of panels, specifically, a left panel 5A and a right panel 5B that respectively constitute left and right side walls of the apparatus body, and an upper panel that constitutes an upper wall of the apparatus body. 5C and a back panel 5D constituting the back wall of the apparatus main body. A front upper panel 5E (to be described later) of the front upper unit 6 also constitutes a part of the outer case 5.

  The left panel 5A and the right panel 5B are plastic molded products formed in a predetermined shape that is symmetrical to the left and right, and both have a slightly curved central portion that protrudes outward. In addition, two front and rear projections 61 and 61 projecting outward are formed at positions corresponding to the leg portions 11a and 11a on the bottom surface of the base 11 at both lower portions of the panels 5A and 5B. In addition, an exhaust port 62 having a large number of pores is provided in the upper portion of the left panel 5A. The exhaust port 62 faces and is close to the fan 42 of the steam discharge unit 41. Further, a rib 62a is provided around the exhaust port 62 of the left panel 5A so as to protrude rightward in a state of surrounding the exhaust port 62. The rib 62a and a fan cover 42a provided around the fan 42 are provided. A passage is defined between the exhaust port 62 and the fan 42. Therefore, steam or the like sent out by the fan 42 passes through the passage and is discharged from the exhaust port 62 to the left of the apparatus main body. Further, the upper end portions of the left panel 5A and the right panel 5B are both curved outwardly and extend in the front-rear direction along the panels 5A and 5B to the uppermost end portion extending from the curved portion. Engaging convex portions 63 and 63 projecting upward are provided. The left and right panels 5A and 5B are connected to the upper panel 5C in a state in which these engaging convex portions 63 and 63 are engaged with the inner sides of the left and right edges of the upper panel 5C.

  The upper panel 5C extends in the front-rear direction, and has an edge formed in a predetermined shape that is bent downward at a right angle over the entire outer periphery. The front lid 65 is formed in the front half and the lid 52b of the hot water tank 52 is formed in the rear half. These are provided so as to be rotatable about the rear end portion as a fulcrum. The front lid 65 is normally closed and is opened when replenishing the canister 34 of the raw material supply unit 3 with the raw material. Note that an L-shaped cover 66 is provided on the lower side of the front cover 65 of the upper panel 5C, and the hot water valve 55 and the steam discharge unit 41 of the hot water supply unit 4 and the like are located upward by this cover 66. Covered from. Therefore, when the front lid 65 is opened, only the lid 34a of the canister 34 is exposed to the outside. Further, the rear panel 5D is configured by a metal plate whose front shape is a vertically long rectangular shape.

  8 and 9 show the front upper unit 6. As described above, the front upper unit 6 has the front upper panel 5 </ b> E that constitutes a part of the exterior case 5. The front upper panel 5E is greatly curved convexly forward, the side shape is formed in a “<” shape, and a skirt portion 71 curved convexly is provided in the lower part. In addition, left and right engaging claws 72, 72 that protrude upward and engage with the front end portion of the upper panel 5C are provided at the rear upper end portion of the front upper panel 5E.

  As described above, the front upper unit 6 has an operation function for operating the coffee server 1 and is operated to discharge coffee to the upper portion of the front upper panel 5E and supply it to the cup C. A coffee supply button 73 is provided, and a power button 74 and a rinse / hot water button 75 (operation unit) are provided on the left and right sides of the lower part. The power button 74 is a button operated to turn on / off the power of the coffee server 1. On the other hand, the rinse / hot water release button 75 supplies a predetermined amount of hot water from the hot water tank 52 to the drip unit 21 of the extractor unit 2, thereby rinsing the cylinder 23 and the like, and removing all hot water from the hot water tank 52. The button is operated to empty the hot water tank 52 by discharging. The rinse / hot water drain button 75 is, for example, pressed once when rinsing and long pressed when performing hot water drainage.

  Further, as described above, the front upper unit 6 also has a function of discharging / supplying coffee. As shown in FIG. 9, the front upper panel 5E has a beverage transport tube DT from the extractor unit 2 inside. There is provided a diffuser 76 that functions as a beverage supply nozzle that discharges the coffee that has been conveyed through the cup and supplies it to the cup C. The diffuser 76 is supported by a frame 77 having a predetermined shape.

  The frame 77 is configured by bending a metal plate having a predetermined shape, and the side surface shape is formed in an L shape. The diffuser support portion 77a that supports the diffuser 76, and the right and left sides of the diffuser support portion 77a. It is composed of right and left bent portions 77b and 77b that are bent at a right angle from both ends to the rear side and trapezoidal side surfaces, and mounting portions 77c and 77c that are bent at right angles in the left and right directions so as to approach each other from the lower ends thereof. ing. The frame 77 is screwed from the front with the upper end portion of the diffuser support portion 77a in contact with the rear upper end portion of the front upper panel 5E from the rear side, and the left and right mounting portions 77c, 77c. Is screwed from above in a state of being placed on the frame main body 32 of the raw material supply unit 3. Note that an opening 77d (see FIG. 8B) is formed between the left and right bent portions 77b and 77b of the diffuser support portion 77a, and the beverage transport tube DT is connected to the diffuser 76 through the opening 77d. Has been.

  The diffuser 77 discharges the coffee transported through the beverage transport tube DT while temporarily storing it, discharges it downward, and supplies it to the cup C. The diffuser 77 has a cylindrical diffuser main body 81 extending in the vertical direction and a nozzle portion 82 extending downward from the bottom wall 81a, and these are formed as an integral plastic molded product. A lid 83 is attached to the upper end of the diffuser main body 81, and a beverage inflow portion 83a for connecting the beverage transport tube DT is provided on the lid 83. Moreover, the diffuser main-body part 81 has the cross-sectional area larger than the channel | path area which is a cross-sectional area of the drink conveyance tube DT. Further, the bottom wall 81a of the diffuser main body 81 is formed in a tapered shape downward, and has an outlet 81b for allowing coffee to flow out at the lower end.

  FIG. 10 shows the inside of the diffuser main body 81. As shown in the figure, the bottom wall 81a in the diffuser main body 81 has a U-shaped rib 84 formed in a U shape with a planar shape opened rearward, and a straight line having a planar shape linearly extending in the front-rear direction. Ribs 85 are erected. The U-shaped rib 84 is disposed so as to surround the outlet 81b at the curved portion, and a slit 84a is formed at the curved portion. On the other hand, the linear rib 85 is disposed with a gap between the straight rib 85 and the U-shaped rib 85.

  The nozzle portion 82 is formed in a cylindrical shape having a discharge passage 82a (see FIGS. 8 and 9) continuous with the outflow port 81b. In addition, two front and rear slits 82 b and 82 b extending along the length direction of the nozzle portion 82 are formed at the tip portion of the nozzle portion 82.

  When the diffuser 76 configured as described above is supported by the frame 77, the nozzle portion 82 slightly protrudes downward from the bottom wall 71a of the skirt portion 71 of the front upper panel 5E, and as a whole, the vertical line On the other hand, it is arranged so as to incline forward.

  A tray sensor 78 for detecting whether a drain tray 92 (to be described later) of the front lower unit 7 is attached to the apparatus main body is attached to the lower left end of the front upper panel 5E of the front upper unit 6. Yes. The tray sensor 78 is constituted by an optical sensor having a light emitting element and a light receiving element that are opposed to each other and spaced apart from each other, and is electrically connected to the control device. When the tray sensor 78 detects that the drain tray 92 is not attached to the apparatus main body, the power supply to the extractor unit 2 is stopped.

  The front upper unit 6 configured as described above is assembled to the raw material supply unit 3 via the frame 77 as described above. And, with respect to the extractor unit 2, the raw material supply unit 3, the hot water supply unit 4 and the front upper unit 6 assembled to each other, the outer case 5 other than the front upper panel 5E, that is, the left and right panels 5A and 5B, the upper panel 5C and the back panel 5D are attached as follows. That is, first, the upper panel 5C is attached to the upper part of the hot water supply unit 4 as shown in FIG. 3, and is engaged with the locking claws 72, 72 of the front upper unit 6 at the front end. Next, the left and right panels 5A and 5B are engaged with the inside of the left and right edges of the upper panel 5C, and are slid forward in a state of being engaged with the outside of the left and right edges of the base 11, whereby the front upper panel Engage with 5E. Then, the back panel 5D is screwed to the back surface of the frame 51 of the hot water supply unit 4. As described above, the outer case 5 is attached around the apparatus main body.

  FIG. 11 shows the front lower unit 7 in an exploded manner. FIG. 11A shows a state when viewed from the front diagonally upward, and FIG. 11B shows a state when viewed from the rear diagonally upward. As described above, the front lower unit 7 has a cup set function and an extraction basket accommodation function. The front lower unit 7 includes a drain tray 92 having a cup stage 91 set with the cup C placed thereon, and a basket bucket 93 disposed below the drain tray 92 and containing an extraction basket. Yes.

  The cup stage 91 is formed in the shape of a hook with a substantially elliptical shape. Further, the drain tray 92 opens upward, and rises from a tray main body 94 formed so that the upper edge portion has a complementary shape with respect to the outer peripheral portion of the cup stage 91, and the rear end portion of the tray main body 94. The upright wall 95 extends to the lower end of the front upper panel 5E of the front upper unit 6. A cup stage 91 is detachably attached to the upper end of the tray body 94 in a fitted state.

  Further, the back wall portion 94a of the tray main body 94 is inclined forward and downward, and tray drain holes 94b and 94b are formed in the left and right ends of the back wall portion 94a, respectively. Thereby, when the liquid level of the liquid accumulated in the tray main body 94, for example, the liquid accidentally spilled on the cup stage 91 or the liquid spilled from the diffuser 76 reaches the tray drain holes 94b, 94b, The liquid exceeding the tray drain hole 94 b flows out through them, and is discharged to the basket bucket 93.

  Furthermore, in the center part of the back surface of the back wall part 94a, it protrudes back and is accommodated in the extraction basket discharged from the extractor unit 2 and the basket bucket 93, and is used for guiding the accumulated extraction basket in the left-right direction. A heel guide 96 is provided. As shown in FIG. 11 (b), the heel guide portion 96 is formed in a pyramid shape having a rhombus bottom surface on the surface on the back wall portion 94a side. Further, a detected piece 95 a that protrudes rearward and is detected by the tray sensor 78 of the front upper unit 6 is provided at the upper left end of the back surface of the standing wall 95.

  The eaves bucket 93 is formed in a box shape having an open upper surface and a predetermined capacity (for example, 2 liters). Specifically, the basket bucket 93 has a U-shaped planar shape that extends in the front-rear direction, and a front half portion thereof (hereinafter referred to as “bucket front half portion 97”) is convexly curved forward. Further, the rear half of the bucket 93 (hereinafter referred to as “bucket rear half 98”) has a U-shaped planar shape continuous with the bucket front half 97. As shown in FIGS. 2 and 12, the bucket bucket 93 has a front half 97 of the bucket protruding forward from the main body of the apparatus and a rear half 98 of the bucket positioned below the drip unit 21 of the extractor unit 2. Removably attached to.

  The upper half portion of the bucket 97 is formed so that its upper end portion has a complementary shape with respect to the lower end peripheral edge portion of the drain tray 92, and the drain tray 92 is fitted to the upper end portion of the bucket first half portion 97. It is detachably attached. Further, a bucket drain hole 97a (drain hole) is provided in the bottom wall of the bucket first half 97. The bucket drain hole 97a is normally sealed by a removable cap 99.

  On the other hand, the bucket latter part 98 is provided with an engaging recess 98a that extends in the left-right direction and opens downward at a predetermined position on the bottom wall. The engagement recess 98a engages with the engagement protrusion 11b of the base 11 in a state where the hook bucket 93 is properly attached to the apparatus main body.

  Here, with reference to FIG. 12, accommodation of the extraction basket by the front lower unit 7 will be described. As described above, after the coffee is extracted and transported in the extractor unit 2, the extractor on the filter block 27 (filter 27 a) is scraped off by the scraper 29 and discharged forward. In this case, the extracted soot falls through the soot discharge passage 100 configured between the drip unit 21 of the extractor unit 2 and the back surface of the drain tray 92, specifically, the back wall portion 94a of the tray body 94. Then, it is accommodated in the straw bucket 93. Since the back wall portion 94a of the tray main body 94 constituting the soot discharge passage 100 is inclined forward and downward, the extracted soot discharged from the filter block 27 forward is indicated by an arrow E in FIG. As described above, the rod passes through the rod discharge passage 100 while drawing a parabola, and falls into the rod bucket 93 in a state of spreading in the front-rear direction. In this case, the extracted soot that hits the soot guide 96 while passing through the soot discharge passage 100 is guided left and right by this soot guide 96.

  Further, when the extraction of the extracted mash is repeatedly performed with the supply (extraction) of coffee, the extracted mash accumulates in the mash bucket 93 and the extracted mash reaches the mash discharge passage 100. In this case, the upper part of the accumulated extraction basket comes into contact with the back wall portion 94a of the tray main body 94 inclined to the front and the basket guide section 96, so that the extraction basket collapses and expands in the front-rear direction and the left-right direction.

  In the front lower unit 7 configured as described above, when discarding the liquid collected in the drain tray 92 or the extracted soot collected in the basket bucket 93, the basket bucket 93 and drain tray 92 are collectively moved forward. Pull out and remove from the device body. Then, the drain tray 92 and the straw bucket 93 are separated, and the liquid and the extraction basket are discarded. In addition, when attaching the drain tray 92 and the straw bucket 93 to the apparatus main body, the former 92 is pushed into the apparatus main body from the front with the former 92 placed on the latter 93.

  In the coffee server 1, the drip unit 21 of the extractor unit 2 can be easily maintained. FIG. 13 shows a state in which the drain tray 92 is removed from the apparatus main body. As shown in the figure, by removing the drain tray 92, the drip unit 21 can be easily accessed from the front of the apparatus main body. In this case, the drip unit 21 and the cylinder 23 are removed from the apparatus main body, and maintenance is performed outside, or maintenance is performed directly inside the apparatus main body.

  In the latter case, by performing maintenance such as cleaning while the basket bucket 93 is still attached to the apparatus main body, raw material, hot water, extracted soot, etc. attached to the drip unit 21 are received by the bucket bucket 93. be able to. Further, in this case, the tray sensor 78 detects that the drain tray 92 has been removed from the apparatus main body, and the power supply to the extractor unit 2 is stopped based on the detection result. Therefore, when performing the above-mentioned maintenance, power is not supplied to the extractor unit 2, so that the extractor unit 2 does not malfunction, and the drip unit 21 can be maintained safely.

  Next, the extractor unit 2 will be described in more detail with reference to FIGS. FIGS. 14A and 14B show the drip unit 21 as viewed obliquely from the front and from the oblique rear, respectively, with one outer cover on the left and right side walls of the cylinder holder 24 omitted. Yes. As shown in the figure, the cylinder holder 24 includes left and right side walls 101, 101 and a back wall 102 and a bottom wall 103 provided so as to extend between the rear end portions and the lower end portions of the side walls 101, 101, respectively. As described above, it is formed in a box shape with the front and upper surfaces open. A front upper cover 104 that connects the side walls 101 and 101 is provided at the front upper end of the left and right side walls 101 and 101. Although not shown, the bottom wall 103 is formed in a lattice shape by a plurality of rod-like members.

  Each side wall 101 is formed in a substantially rectangular shape on the side surface, and a case-shaped side wall body 105 whose outer side surface is open, and an outer cover screwed to the side wall body 105 so as to cover the open side surface. 106. As shown in FIG. 14, in each side wall 101, the filter block 27 is moved up and down below the cylinder 23, and the cylinder head 28 is used to seal and release the upper surface of the cylinder 23. A cylinder opening / closing mechanism 111 that opens and closes the lower surface and the upper surface of 23 is provided. Since the left and right cylinder opening / closing mechanisms 111 and 111 are configured symmetrically in the left and right side walls 101 and 101, the following description will be made on behalf of those built in the right side wall 101. And

  As shown in FIGS. 14 and 15, the cylinder opening / closing mechanism 111 is rotatably supported by a support shaft 105 a protruding at a predetermined position near the center in the side wall body 105, and has a first cam groove 112 having a predetermined shape and A cam disk 114 having a second cam groove 113 and a lower part in the side wall body 105 are slidable in the vertical direction. The cam disk 114 engages with the first cam groove 112 of the cam disk 114 and is connected to the filter block 27. The slider 115 and a support shaft 105b protruding at a predetermined position in the upper portion of the side wall body 105 are rotatably supported, engage with the second cam groove 113 of the cam disk 114, and the cylinder head 28 is connected to the cylinder. A cylinder head lock member 116 for locking the upper surface of the head 23 while being pressed is provided.

  The cam disc 114 is formed in a disc shape having a predetermined diameter and thickness, and a gear portion 114a is formed on the entire circumferential surface. Further, the first cam groove 112 and the second cam groove 113 are provided on the side surface of the cam disk 114 on the side wall body 105 side.

  As shown in FIG. 16, the first cam groove 112 is provided at the peripheral edge of the side surface of the cam disk 114, and makes a round in an arc shape centering on the support shaft 105 a of the cam disk 114 and in the counterclockwise direction. The outer cam portion 121 extending in this manner, the drive cam portion 122 extending in an arc toward the support shaft 105a, and the arc shape centering on the support shaft 105a. And an inner cam portion 123 extending so as to make one round in the vicinity of the support shaft 105a. In addition, a predetermined angle (about 30 degrees) portion (hereinafter referred to as “proximity portion 121a”) in the vicinity of the drive cam portion 122 of the outer cam portion 121 is connected to the other outer cam portion 121 (hereinafter referred to as “remote portion 121b”). Compared to the support shaft 105a, it is formed. In other words, the remote portion 121b of the outer cam portion 121 is formed at a position slightly further from the support shaft 105a than the proximity portion 121a.

  On the other hand, the second cam groove 113 is provided on the inner side of the outer cam portion 121 of the first cam groove 112, has an arc shape centering on the support shaft 105a, and is counterclockwise from the vicinity of the distal end portion of the outer cam portion 121. An outer cam portion 124 extending in a substantially 3/4 arc shape, a drive cam portion 125 extending toward the support shaft 105a, connected to the outer cam portion 124, and connected to the drive cam portion 125, with the support shaft 105a as the center. The inner cam portion 126 extends in an arc shape.

  As shown in FIG. 15B, the slider 115 is formed in a substantially convex shape, extending in the vertical direction and having its lower portion widened downward. At the upper end portion of the slider 115, an engaging convex portion 115a that protrudes toward the cam disc 114 is provided. The engaging convex portion 115a is slidable in the first cam groove 112 of the cam disc 114. Is engaged. Further, two connecting rods 127 and 127 for connecting the slider 115 and the filter block 27 are fixed to the lower end portion of the slider 115. Both connecting rods 127 and 127 are spaced in the front-rear direction (left-right direction in FIG. 15) and extend in parallel in the left-right direction (front-back direction in the drawing in FIG. 15). Each connecting rod 127 passes through a long hole 105c extending in the vertical direction of the side wall main body 105, and has one end fixed to the slider 115 and the other end fixed to the slider 115 of the left cylinder opening / closing mechanism 111. Yes. Therefore, the filter block 27 is supported by the left and right sliders 115 and 115 via both connecting rods 127 and 127. In addition, a long hole 115b extending in the vertical direction is formed at the center of the slider 115, and an engagement convex portion 105d protruding at a predetermined position in the lower portion of the side wall body 105 slides into the long hole 115b. It engages freely.

  The slider 115 configured as described above slides in the vertical direction while being guided between the guide rails 105e and 105e extending in the vertical direction in the side wall body 105 as the cam disk 114 rotates. Along with this, the filter block 27 moves up and down to open and close the lower surface of the cylinder 23. Specifically, the cam disk 114 shown in FIG. 15B and FIG. 16 rotates in the clockwise direction in both drawings, and the engagement convex portion 115a of the slider 115 is moved to the outer cam portion 121 of the first cam groove 112. The slider 115 is raised by sliding the drive cam portion 122 toward the inner cam portion 123. Then, when the engagement convex portion 115a of the slider 115 reaches the inner cam portion 123, the filter block 27 is sealed in a state of being in close contact with the lower surface of the cylinder 23 (see FIG. 19B). On the other hand, from this state, the cam disk 114 rotates counterclockwise and the slider 115 descends, so that the filter block 27 also descends, thereby opening the lower surface of the cylinder 23 (FIG. 20 (a)). )reference).

  Further, as shown in FIG. 15B, the cylinder head lock member 116 is formed in a predetermined shape extending in the vertical direction, and its central portion is rotatably supported by a support shaft 105b in the side wall body 105. Yes. At the lower end of the cylinder head lock member 116, an engaging convex portion 116 a that protrudes toward the cam disk 114 is provided, and this engaging convex portion 116 a is formed in the second cam groove 113 of the cam disk 114. It is slidably engaged. In addition, a hook-shaped lock portion 116b extending so as to protrude rearward is provided at the upper end portion of the cylinder head lock member 116.

  The cylinder head locking member 116 configured as described above rotates as the cam disk 114 rotates, and the cylinder head 28 is pressed against the upper surface of the cylinder 23 and locked by the lock portion 116b at the upper end. The upper surface of the cylinder 23 is sealed. Specifically, the cam disk 114 shown in FIGS. 15 (b) and 16 rotates in the clockwise direction in both drawings, and the engagement convex portion 116 a of the cylinder head lock member 116 is located outside the second cam groove 113. By sliding the drive cam portion 125 from the cam portion 124 toward the inner cam portion 126, the cylinder head lock member 116 rotates about the support shaft 105b in the clockwise direction in FIG. Then, the lock portion 116b of the cylinder head lock member 116 engages with a later-described head guide rod 143 of the cylinder head 28 and locks it so as to push it downward. Thereby, the cylinder head 28 is sealed in a state of being in close contact with the upper surface of the cylinder 23 (see FIG. 19C).

  As described above, the cylinder opening / closing mechanism 111 configured as described above is built in the left and right side walls 101, 101, and the gear 114a of the cam disk 114 of both the cylinder opening / closing mechanisms 111, 111 corresponds. Meshing with gears 128, 128 rotatably provided at predetermined positions in the side wall body 105. As shown in FIG. 14B, both gears 128 are fixed to both ends of a power transmission shaft 129 extending horizontally in the left-right direction, and each gear 128 is a rear end in the corresponding side wall body 105. It is provided at a predetermined position of the part. A gear 128 (hereinafter referred to as “driven joint gear 128 </ b> A”) provided on the left side wall main body 105 slightly protrudes rearward from the side wall 101. In a state where the drip unit 21 and the drive unit 22 are attached to the front surface and the back surface of the frame 12 (frame main body portion 13), the driven joint gear 128A is located behind the frame main body portion 13 through the opening 13b of the frame 12. And engages with a drive joint gear 135 to be described later on the drive unit 22 side. Therefore, when the driven joint gear 128A is rotated by being driven by the drive joint gear 135, the left cam disk 114 meshing with the rotated rotation rotates the right cam gear 114 through the power transmission shaft 129 and the right gear 128. The cam disk 114 rotates in synchronization with that on the left side.

  Next, the drive unit 22 will be described with reference to FIGS. 17 and 18. The drive unit 22 includes a cam drive mechanism 131 that drives the cam disk 114 of the drip unit 21 and a scraper / cylinder head drive mechanism 132 that drives the scraper 29 and the cylinder head 28.

  As shown in FIG. 18, the cam drive mechanism 131 meshes with the first motor 133 formed of a DC motor, the output gear 134 connected to the first motor 133 via a gear box, and the output gear 134. And a drive joint gear 135 that meshes with the driven joint gear 128A on the drip unit 21 side.

  A mode switch 136 for controlling the rotation angle of the cam disk 114 is provided in the vicinity of the output gear 134. The mode switch 136 has a switch gear 136 a that meshes with the output gear 134 via the intermediate gear 137 and rotates at an equal angle in synchronization with the cam disk 114. The mode switch 136 has a plurality of modes in which the switch gear 136a is turned on at a plurality of predetermined rotation angles, and the control device identifies the rotation angle of the cam disk 114 according to the modes. To do.

  On the other hand, the scraper / cylinder head drive mechanism 132 has a second motor 137 formed of a DC motor and an output shaft (not shown) connected to the second motor 137 and extending in the vertical direction and projecting at both ends. And a cylinder head driving unit (not shown) and a scraper driving unit 139 provided at the upper and lower ends of the output shaft. The cylinder head drive unit is engaged with the cylinder head 28, and rotates with the rotation of the output shaft, thereby moving the cylinder head 28 into a standby position (a position indicated by a solid line in FIG. 18) and a cylinder 23. It drives in the front-back direction between the closed position (position shown with the dashed-two dotted line of FIG. 18) which closes. On the other hand, the scraper drive unit 139 is slidably engaged with the engagement groove 29c (see FIG. 5B) of the support 29a of the scraper 29, and rotates along with the rotation of the output shaft. The scraper 29 is driven in the front-rear direction between a standby position (a position indicated by a solid line in FIG. 18) and an extraction rod discharge position (a position indicated by a two-dot chain line in FIG. 18). The cylinder head drive unit and the scraper drive unit 139 are both connected to the output shaft through a one-way clutch, and when the output shaft rotates in a predetermined direction, only the cylinder head drive unit rotates and outputs Only the scraper driving unit 139 rotates when the shaft rotates in the opposite direction.

  Although not described in detail, the drive unit 22 is further provided with a pinch mechanism 140 for opening and closing predetermined locations in the middle of the air transport tube AT and the beverage transport tube DT. The pinch mechanism 140 is driven by using the first motor 133 of the cam drive mechanism 131 described above as a common drive source, and opens and closes a predetermined portion of the air transport tube AT and the beverage transport tube DT at a predetermined timing, whereby the air pump AP The air from the cylinder is pumped to the cylinder 23 via the cylinder head 28 or the filter block 27.

  Here, the cylinder head 28 will be described. The cylinder head 28 is disposed so as to penetrate the circular head main body 141 having a planar shape larger than the upper surface of the cylinder 23 and the upper opening 13 c of the frame 12, and supports the head main body 141 at the front end portion and the rear end portion. The slider 142 is provided so as to engage with the cylinder head driving portion and to be movable in the front-rear direction. At a predetermined position on the bottom surface of the head main body 141, an air supply port (not shown) is provided for sending the air conveyed through the air conveying tube AT downward. A head guide rod 143 that is longer than the outer diameter of the head body 141 and extends in the left-right direction is provided at the upper end of the head body 141. The head guide rod 143 is engaged with the upper ends of the left and right side walls 101, 101 of the cylinder holder 24 so as to be slidable in the front-rear direction.

  Further, a raw material / hot water guide member 144 for guiding the raw material from the raw material charging port 25 a of the holder cover 25 and the hot water from the hot water supply port 25 c to the cylinder 23 is attached to the upper half of the head body 141. . The raw material / hot water guide member 144 is integrally formed of an auxiliary raw material chute 145 provided in front of the head main body 141 and a hot water guide receiving portion 146 provided on the left side of the auxiliary raw material chute 145. The auxiliary material chute 145 is formed in a cylindrical shape extending in the vertical direction, and is located between the material charging port 25a of the holder cover 25 and the cylinder 23 when the cylinder head 28 is positioned at the standby position, and the material charging port. The raw material charged from 25 a is further guided to the cylinder 23. On the other hand, the hot water guide receiving portion 146 is formed in a case shape whose upper surface is opened, and when the cylinder head 28 is located at the standby position, the hot water supplied from the hot water supply port 25c of the holder cover 25 is further transferred to the cylinder. 23, and receiving the hot water coming from the hot water supply port 25c, prevents the cylinder head 28 from getting wet with the hot water. In addition, an auxiliary hot water supply nozzle 146a penetrating in the vertical direction and slightly protruding downward is provided at the front end of the bottom wall of the hot water guide receiving portion 146, and flows into the hot water guide receiving portion 146 from the hot water supply port 25c. Hot water is discharged from the auxiliary hot water supply nozzle 146 a and supplied to the cylinder 23.

  Next, the coffee cooking operation (beverage cooking mode) in the extractor unit 2 configured as described above will be described with reference to FIGS. 19 and 20 which sequentially show a series of operations. In these figures, the upper part mainly shows the rotational operation of the cam disk 114, and the lower part mainly shows the operation of the filter block 27, the cylinder head 28, and the scraper 29.

  FIG. 19A shows a standby state. In this standby state, the cam disk 114, the filter block 27, the cylinder head 28, and the scraper 29 are positioned at their standby positions, and the upper surface and the lower surface of the cylinder 23 are both open. When the first motor 133 of the cam drive mechanism 131 rotates in a predetermined direction from this standby state, the cam disk 114 rotates clockwise by a predetermined angle (for example, about 120 degrees) in FIG. As a result, the slider 115 that engages with the first cam groove 112 of the cam disk 114 rises as shown in FIG. 5B, and the filter block 27 also rises and abuts against the lower surface of the cylinder 23. This is sealed in the state.

  Next, in this state, a predetermined amount of raw material and hot water are supplied to the cylinder 23 from the raw material supply unit 3 and the hot water supply unit 4, respectively. Specifically, the raw material supplied from the raw material supply unit 3 is supplied to the cylinder 23 via the raw material inlet 25 a of the holder cover 25 and the auxiliary raw material chute 145 of the cylinder head 28. On the other hand, the hot water supplied from the hot water supply unit 4 is supplied to the cylinder 23 via the hot water supply port 25 c of the holder cover 25 and the auxiliary hot water supply nozzle 146 a of the cylinder head 28.

  After supplying the raw material and hot water, the second motor 137 of the scraper / cylinder head drive mechanism 132 rotates in a predetermined direction, and the cylinder head 28 at the standby position moves forward, so that the head main body 141 is directly above the cylinder 23. To reach. Thereafter, the first motor 133 of the cam drive mechanism 131 is rotated again, whereby the cam disk 114 is further rotated. Then, as shown in FIG. 19C, when the cam disk 114 rotates about 240 degrees from the standby position, the cylinder head lock member 116 that engages with the second cam groove 113 of the cam disk 114 becomes the same. In the drawing, the head guide rod 143 is slightly rotated in the clockwise direction and locked by the lock portion 116b in a state where the head guide rod 143 is pushed down. As a result, the head main body 141 of the cylinder head 28 seals the cylinder head 28 while being in contact with the upper surface of the cylinder 23.

  Next, the air pump AP is activated for a predetermined time (for example, several seconds), and the air is pumped to the cylinder head 28 via the air transfer tube AT and further supplied to the cylinder 23 via the air supply port of the head main body 141. . Thereby, the inside of the cylinder 23 is pressurized, and the extracted coffee is supplied to the cup C set on the cup stage 91 through the filter block 27, the beverage transport tube DT, and the diffuser 76 in order.

  As described above, after the coffee is supplied to the cup C, the first motor 133 of the cam drive mechanism 131 rotates in the opposite direction, so that the cam disk 114 also rotates in the opposite direction. Return to position. Accordingly, as shown in FIG. 20A, the filter block 27 is lowered and returned to the standby position. In this case, the extracted soot G remains on the filter 27a of the filter block 27. In this case, the second motor 137 of the scraper / cylinder head driving mechanism 132 rotates in the same direction as described above, and the cylinder head 28 also returns to the standby position.

  Next, the second motor 137 of the scraper / cylinder head driving mechanism 132 rotates in the opposite direction to the above, so that the scraper driving unit 139 rotates 180 degrees. As a result, as shown in FIG. 20B, the scraper 29 moves from the standby position to the front extraction basket discharge position. In this case, the lower end of the scraper main body 29b scrapes the extracted soot G on the filter 27a while sliding on the filter 27a of the filter block 27, and discharges it forward.

  Next, the first motor 133 of the cam drive mechanism 131 rotates again, whereby the cam disk 114 at the standby position rotates counterclockwise by a predetermined angle (for example, about 40 degrees) in FIG. As a result, as shown in FIG. 5C, the engagement convex portion 115a of the slider 115 moves from the proximity portion 121a of the outer cam portion 121 of the first cam groove 112 to the remote portion 121b, whereby the slider 115 is moved. Slightly descends. Accordingly, the filter block 27 is slightly lowered from the standby position. That is, the filter 27a of the filter block 27 is lowered from the lower end of the scraper body 29b of the scraper 29.

  As described above, after the filter block 27 is lowered from the standby position, the second motor 137 of the scraper / cylinder head driving mechanism 132 rotates in the same direction as described above, so that the scraper driving unit 139 further rotates 180 degrees. To do. As a result, as shown by the two-dot chain line in FIG. 20 (c), the scraper 29 returns from the extraction basket discharge position to the standby position. Thereafter, when the first motor 133 of the cam drive mechanism 131 rotates in the reverse direction, the cam disk 114 also rotates in the reverse direction and returns to the original standby position.

  Thus, a series of operations for coffee extraction by the extractor unit 2 is completed.

  Next, hot water removal processing (tank draining mode) in the hot water tank 52 of the coffee server 1 will be described with reference to FIGS. This hot water removal process is performed, for example, to reduce the weight of the coffee server 1 when the hot water in the hot water tank 52 is replaced or when the installation location of the coffee server 1 is changed. By operating the extraction button 75, all the hot water in the hot water tank 52 is automatically discharged into the basket bucket 93 via the extractor unit 2.

  FIG. 21A shows a standby state, in which the filter block 27 and the cylinder head 28 are located at their standby positions. When the rinse / hot water release button 75 is operated, the filter block 27 rises, and the lower surface of the cylinder 23 is sealed as shown in FIG. Next, in this state, the hot water pump 54 of the hot water supply unit 4 is activated, the hot water valve 55 is opened, and hot water in the hot water tank 52 is supplied to the extractor unit 2 via the hot water supply tube 53. As a result, as shown in FIG. 5C, hot water is supplied to the cylinder 23 in the same manner as in the above-described coffee cooking.

  When the amount of hot water in the hot water tank 52 is larger than the volume of the cylinder 23, the supplied hot water overflows from the upper side of the cylinder 23 and the outer surfaces of the cylinder 23 and the filter block 27 as shown in FIG. It flows down along. And the hot water which flowed down is accommodated in the lower bucket bucket 93. Further, in this case, the amount of hot water supplied from the hot water tank 52 by one operation of the rinse / hot water release button 75 is less than the volume of the tub bucket 93 because the opening time of the hot water valve 55 is set. It is controlled to become. Thereby, the hot water at the time of the hot water removal process can be reliably prevented from overflowing from the straw bucket 93. If all the hot water in the hot water tank 52 is not discharged by one operation of the rinse / hot water drain button 75, the entire operation in the hot water tank 52 is performed by operating the rinse / hot water drain button 75 again. It is possible to discharge hot water.

  After the discharge of hot water from the hot water tank 52 is completed, the filter block 27 descends and returns to the standby position as shown in FIG. Thereby, the hot water in the cylinder 23 flows down and is stored in the basket bucket 93.

  Then, when discarding the hot water accumulated in the straw bucket 93, the straw bucket 93 is removed from the apparatus main body and discarded in the same manner as the above-described disposal of the extracted straw, and then, as shown in FIG. Reattach the bucket 93 to the apparatus body.

  When performing the above draining process, one end of a hose or the like is connected to the bucket drain hole 97a (see FIGS. 11 and 12) of the bucket bucket 93, and the other end is placed in an external large bucket or the like. Further, the process may be performed with the cap 99 removed from the bucket drain hole 97a. In this case, the hot water draining process can be performed continuously without removing the basket bucket 93 in the middle.

  As described above in detail, according to the present embodiment, the hot water supply unit 4 supplies a predetermined amount of hot water necessary for cooking the coffee to the extractor unit 2 when cooking coffee (during the beverage cooking mode). At the same time, the extractor unit 2 cooks coffee using the supplied hot water. On the other hand, when the hot water tank 52 is drained (in the tank drain mode), the hot water supply unit 4 supplies all the hot water in the hot water tank 52 to the extractor unit 2, and the extractor unit 2 is supplied. Let the hot water leak. The hot water leaked from the extractor unit 2 is accommodated in the straw bucket 93. Thus, in the coffee server 1 of this embodiment, when the hot water tank 52 is drained, the hot water in the hot water tank 52 is supplied to the extractor unit 2 in the same manner as when cooking coffee, so that the dedicated piping is used. The hot water tank 52 can be easily drained without providing the water. Further, when new water is replenished to the hot water tank 52 after draining, unlike the conventional case, old water is not mixed with the replenished water, and thus sanitary coffee can be supplied.

  In addition, this invention can be implemented in various aspects, without being limited to the said embodiment described. In the embodiment, the case where coffee is cooked by extraction has been illustrated, but it is of course possible to apply the present invention to a tea server that cooks beverages other than coffee, for example, tea-based beverages by extraction.

The detailed configuration of the coffee server 1 and the extractor unit 2 shown in the embodiment is merely an example, and can be appropriately changed within the scope of the present invention.

It is a perspective view which shows the coffee server to which the drink supply apparatus by one Embodiment of this invention is applied. It is a figure which shows the coffee server of FIG. 1, (a) is a front view, (b) is a right view in the state which removed the right panel. It is a perspective view which decomposes | disassembles and shows the coffee server of FIG. 1 for every functional unit. (A) is a base and the frame which supports an extractor unit, (b) is a perspective view which shows an extractor unit. It is a figure for demonstrating an extractor unit, (a) is the state which removed the cylinder head cover from the drip unit, (b) is a perspective view which shows the drip unit from which the cylinder was removed, and a scraper. It is a figure which shows a raw material supply unit, (a) is a front view, (b) is sectional drawing cut | disconnected along the bb line of (a). It is a figure which shows a hot-water supply unit, (a) is a front view, (b) is a right view. It is a figure which shows a front upper unit, (a) shows the state when it sees from diagonally upward, (b) shows the state when it sees from diagonally downward. It is a figure which shows a front upper unit, (a) is a right view, (b) is sectional drawing. It is a figure which shows the internal structure of a diffuser, (a) is a top view, (b) is a perspective view. It is a perspective view which decomposes | disassembles and shows a front lower unit, (a) shows the state when it sees from front diagonally upward, (b) shows the state when it sees from back diagonally upward. It is a figure which shows the cross section of the front lower unit attached to the apparatus main body with the periphery. It is a figure which shows the state which removed the drain tray from the apparatus main body, (a) is a front view, (b) is a right view. It is a perspective view which shows the drip unit which abbreviate | omitted one outer cover of the left and right side walls of a cylinder holder, (a) shows a state when viewed from the front, and (b) shows a state when viewed from the rear. It is a side view which shows the internal structure of the right side wall of a cylinder holder, (a) is the state which abbreviate | omitted the outer cover, (b) shows the state which displayed the cam groove of the cam disc of (a). It is a figure which expands and shows the cam disc which displayed the cam groove. It is a perspective view which shows the state which abbreviate | omitted the drip unit in the extractor unit supported by the flame | frame. It is a left view which shows a drive unit. It is explanatory drawing for demonstrating operation | movement of the extractor unit at the time of coffee cooking in order, (a) is a standby state, (b) is the supply state of the raw material and hot water to a cylinder, (c) is a cylinder head being a cylinder. The state where the upper surface is sealed is shown. It is explanatory drawing following FIG. 19, (a) is the state which the filter block and the cylinder head returned to the standby position after completion | finish of extraction, (b) is the state which paid out the extraction soot by the scraper, (c) is the filter block waiting. It shows a state of being lowered from the position. It is explanatory drawing for demonstrating operation | movement of the extractor unit in order at the time of the hot water removal process of a hot water tank. It is explanatory drawing following FIG.

Explanation of symbols

1 Coffee server (beverage supply device)
2 Extractor unit (beverage extractor)
4 Hot water supply unit (water supply means)
21 drip unit 22 drive unit 52 hot water tank (water storage tank)
75 Rinse and hot water button (operation unit)
93 滓 Bucket 97a Bucket drain hole (drain hole)
C cup

Claims (3)

A beverage supply device for supplying a beverage cooked inside the device body,
A beverage extractor that is provided inside the apparatus main body, cooks by extracting a beverage using raw materials and water, and pays out the extracted straw that is the raw material after the extraction,
A water supply tank for storing water, water supply means for supplying water from the water storage tank to the beverage extractor;
An upper surface is opened, and is disposed below the beverage extractor, and is detachably attached to the apparatus main body, and includes a basket for storing the dispensed extraction basket,
Control means for controlling the water supply means and the beverage extractor, having a beverage cooking mode for cooking beverages, and a tank draining mode for discharging water in the water storage tank;
With
The water supply means supplies a predetermined amount of water necessary for cooking of the beverage during the beverage cooking mode, and supplies all the water in the water storage tank during the tank drain mode,
The beverage extractor is configured to allow leakage of supplied water, cooks a beverage using the supplied water during the beverage cooking mode, and supplies the water supplied during the tank drain mode. Beverage supply device characterized by causing leakage. The straw bucket has a predetermined volume,
An operation unit that is operated to execute the tank draining mode;
The beverage supply apparatus according to claim 1, wherein the water supply means supplies a smaller amount of water than the predetermined volume of the basket bucket by a single operation of the operation unit.   The drainage hole for discharging | emitting the water discharged | emitted from the said beverage extractor and accommodated in the said basket bucket to the exterior is provided in the said basket bucket, The Claim 1 or 2 characterized by the above-mentioned. Beverage supply device.

Images